JPH02266200A - Transferrer for fluid and pig receiving valve - Google Patents

Abstract

PURPOSE:To control mixing between fluids by using the feeding pressure of a next transfer fluid as a pig moving power source and transferring plural kinds of fluids continuously, while detecting a pig position with a signaler and opening or closing an on-off valve in a branch pipe. CONSTITUTION:A pig 54 in a pig launcher 51 is led into an outlet valve 58 by opening or closing a launching valve 53, adding it with transfer pressure of each fluid in order from a transferrer 57, and it is transferred in a transfer pipe 50 with feeding pressure of the next transfer fluid in the state that respective fluids are held between pigs 54 by opening or closing an on-off valve 55 and the outlet valve 58. When the pig 54 to be transferred is reached to a signaler 92 or signalers 93-95 corresponding to the holding fluid, an on-off valves 83A or on-off valves 83B-83D are opened by the signal, and respective fluid A-D are received in tanks 82A-82D. Thus, mixing among these fluids is preventable and simultaneously any occurrence of a water hammer is eliminable.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a VIG-type fluid transfer device and a VIG receiving valve in the transfer device that receives a VIG.

<Prior Art> As a conventional fluid transfer device using this type of VIG, there is one shown in FIG. 8, for example.

Further, FIG. 9 shows a big receiver and its on-off valve in the transfer device.

In this transfer device, the transfer source 5
When the transfer of the type of fluid from to the transfer destination 6 is completed, the on-off valve 7 is opened and the VIG 9 is introduced from the VIG launcher 8 into the transfer path.

Next, the next fluid to be transferred is transferred from the transfer source 5 to the valve 2.
The fluid is fed to the back of the BIG 9 through the pipe 1, and the feeding pressure of the previous fluid is added to the BIG 9 as back pressure, and the fluid before and the fluid from the back are separated in the transfer pipe 1. Move the big 9 to the pig receiver 10 side.

Then, when the signaler 11 detects the passage of the big 9, it closes the valve 4, opens the inlet valve 2 and the outlet valve 13, 14 to the pig receiver O, and transfers the previous fluid to the valve 1.
3. Recover to destination 6 via route 15 passing through 14.

When the signaler 16 detects that the Big 9 has arrived at the pig receiver ] 0, the valve 17 of the path corresponding to the next fluid is opened, and the valves 12, 13, and 14 are closed, and the next fluid is transferred to this. It is transferred to the corresponding destination 18 through the passage 19.

The VIG 9 that has arrived in the VIG receiver 10 is taken out when the valve 20 is opened, the pump 22 is operated, and the residual fluid is collected into the drain 23.

Further, in the figure, 24 and 25 are destinations for transferring another type of fluid.

Here, as shown in FIG. 9, the big receiver inlet valve 12 between the pig receiver 10 and the transfer pipe 1 simply opens and closes the pipe line. That is, the inner valve 26 has a communication passage 28 having the same diameter as the pipe line 27. Further, the inner valve 26 is switched to open or close with respect to the conduit 27 by means of a shaft 29.

<Problem to be solved by the invention> However, in such a conventional transfer device,
Passage 15.19 every time the type of fluid to be transferred is switched.
This resulted in turbidity (contamination) between the fluids within the tank.

That is, in this transfer device, when the VIG 9 passes through the VIG receiving valve 12 and reaches the PIG receiver 10, the sealing property with the inner wall of the VIG receiver 10 is lost. Then, there is a problem in that the fluid before and after the vigs becomes turbid until the passage of the vigs 9 is detected by the signaler 16 and the vigs receiving valve 12 is fully closed. Therefore, in order to reduce the amount of turbidity between the transferred fluids, it is necessary to reduce the time required from passing through the VIG to closing and closing the VIG receiving valve 12. However, this reduction in time has limitations in terms of the supply of power source for opening and closing and mechanical aspects, and it has been impossible to completely avoid turbidity of the fluid before and after inside the big receiver.

For example, regardless of the length of time it takes to open and close the big receiving valve, some measure must be taken downstream of the big receiving valve to prevent turbidity, or the big in the big receiver loses its seal with its inner wall. Previously, it was considered to reduce the speed of the transferred fluid by fully closing the big receiving valve, but this had problems such as a significant drop in transfer efficiency.

Therefore, the invention of the present application transfers the fluid before the VIG to the branch pipe between the branch pipe and the transfer pipe disposed closest to the PIG receiver, and then switches the VIG to the PIG receiver and transfers the fluid after the VIG reaches the branch pipe. The present invention aims to provide a fluid transfer device equipped with a big receiving valve for supplying fluid, and a big receiving valve with a novel structure suitable for use in the transfer device.

<Means for Solving the Problems> The fluid transfer device according to the first invention of the present application uses a vig that moves within the transfer pipe in close contact with the inner circumferential surface of the transfer pipe, thereby transferring a plurality of types of fluids within the transfer pipe. In a fluid transfer device that separates fluids and transfers them, there is provided a Vi launcher that supplies the above-mentioned Vig into a transfer pipe, and a plurality of Vi launchers that are branched from the transfer pipe in parallel and communicate with respective transfer destinations depending on the type of fluid. A branch pipe, an on-off valve provided in the branch pipe at the branch part between these branch pipes and the transfer pipe, a signaler that detects that the VIG has passed through these branch parts, and a signaler that detects that the VIG has passed through these branch parts, and When the VIG passes through the branch of the branch pipe corresponding to the fluid, the on-off valve of the branch is closed, and when the VIG passes through the branch of the branch pipe corresponding to the fluid following this fluid, A control means for opening the on-off valve of the branch, a VIG receiver that receives the VIG from within the transfer pipe, and a VIG receiver that directs the fluid before the VIG to the branch between the branch pipe and the transfer pipe, which is disposed closest to the VIG receiver. This system is equipped with a big receiving valve that transfers the water to the pipe and switches the big signal to the big receiver.

Moreover, the big receiving valve according to the second invention of the present application is
In a fluid transfer device that separates and transfers multiple types of fluids within a transfer pipe by a vig that moves within the transfer pipe in close contact with the inner peripheral surface of the transfer pipe, the transfer pipe and the fluid are transferred to a destination. A big receiving valve disposed at a branch with a branch pipe, the valve body having at least an inlet port communicating with the transfer pipe and two outlet ports communicating with the branch pipe and the big receiver, respectively; An inner valve is rotatably supported within the body and has an orifice that communicates between an inlet port and one of two outlet ports, and the above-mentioned vig is formed at the open end of the orifice and is fed from the inlet port. This is a big receiving valve having a recess for receiving and holding the valve and closing an orifice by the held big.

<Operation> In the first invention of the present application, the feed pressure of the next fluid to be transferred is used as a power source for moving the VIG to continuously transport multiple types of fluids, and the position of the VIG is determined by the signaler. is detected to control the opening and closing of the on-off valves of the branch pipes, and guide the fluids to the corresponding branch pipes for each type to suppress turbidity between the fluids. In this case, the pig receiving valve closes the outlet port to the prefluid by receiving the Vig and the Vig is delivered to the Vig receiver, so no turbidity occurs.

Further, according to the second invention of the present application, the pig receiving valve completely closes the outlet port to the receiver before feeding the Vig to the Vig receiver, and when feeding the Vig, the outlet port to the fluid before the Vig is closed. Since the valve is completely closed, turbidity of the fluid before and after the pig receiving valve and the big receiver located downstream thereof does not occur.

<Example> A fluid transfer device according to the present invention will be specifically described based on an example shown in FIGS. 1 to 6.

As shown in FIG. 1, a big launcher 51 is provided at one end of a transfer pipe 50, and a big receiver 52 is provided at the other end of the transfer pipe 50.

The Vig launcher 51 is provided with a launching valve 53, and a plurality of Vigs (spherical bodies having approximately the same diameter as the inner diameter of the transfer pipe 50) 54 are loaded on the back side of the valve 53.

A fluid introduction pipe 56 is connected to the outlet side of the launching valve 53 of the big launcher 51 via an on-off valve 55.
It is connected to a transfer source 57 of the fluid to be transferred.

An outlet opening/closing valve 58 is provided at the outlet of the Vig launcher 51, and signalers 59 and 60 are provided across the valve 58 to detect passage of the Vig 54.

Furthermore, one end of the train pipes 61A and 61B are connected to the exit portion of the big launcher 51 and the transfer pipe 50lO-, respectively, and the other ends of the I/rain pipes 61A and 61B are connected to the fluid introduction pipe 56. There is.

In addition, 62, 63 in the figure is an on-off valve provided at one end of the train pipe 61A, 64 is an on-off valve provided at the other end of the drain pipe 61A (61B), and 65, 66, 67 are respective on-off valves provided at the drain pipe 61B. A pump, a filter, and a flow switch are provided; 68 is an on-off valve provided on the fluid introduction pipe 56; and 69 is an on-off valve provided on the gas introduction port (for example, air introduction port) of the fluid introduction pipe 56. .

On the other hand, a big receiving valve 71 is provided in the transfer pipe 50 on the inlet side of the big receiver 52, and a signaler 72 for detecting the big 54 is provided near the valve 71 on the back side of the big receiver 52.

A discharge pipe 73 is connected to the big receiver 52, and a train pipe 75 is connected to the discharge pipe 73 via a drain valve 74. Drain pipe 75 is led to drain 76 .

=11 In addition, 77, 78, and 79 in the figure are train pipe 7, respectively.
The flow switch, filter, and pump installed at δ are shown. Reference numeral 80 denotes an on-off valve provided at a gas inlet (for example, an air inlet) of the big receiver 52.

On the downstream side of the transfer port 50 and near the big receiving valve 710, a plurality of branch pipes 81A and 81B181C181D (in this embodiment, four for liquid A, liquid D, method C, and liquid D) are connected in parallel to each other. has been done.

These branch pipes 81A, 81B, 81C, and BID are respectively connected to destinations 82A, 82B, and 82C182F for transferring different types of fluids (liquid A' to liquid B, liquid C, and liquid D).

Further, in each branch pipe 81A, 81B, 81C, 81D, an on-off valve 83A, close to the branch part from the transfer pipe 50,
83B, 83C183D are provided respectively.

Further, in the middle of each of the branch pipes 81A, 81B, 81C181D, there are confluence pipes 84A, 84B, 84C for collecting the liquid discharged from the Vigrezi-pink valve 71.

84D are connected to each other. These merging pipes 84
A, 84-B, 84C18tID is one merging pipe 84
are connected to the branch pipe 98, and the valve 4 is connected to the branch pipe 98.
9 is connected downstream of the drain valve 74 of the discharge pipe 73.

In addition, each merging pipe 84A, 84B, 84C184D is provided with an on-off valve 85A, 85B, 85C185D, respectively.

Further, in each of the merging pipes 84A, 84B, 84C184D, train valves 86A, 86B, 86C186 are provided between the connection parts of the on-off valves 85A, 85B, 85C185D and the branch pipes 81A, 81B, 81C181D, respectively.
Train pipes 87A, 87B, 87C, 87D with D
is connected. These drain pipes 87A, 87B
, 87C187D are combined into one train v87 and connected to the drain pipe 75.

Branch pipes 81A, 81B, 8 of the previously described transfer pipe 50]
Signalers 91, 92, 9 are installed at each branch to C181D.
3,94-195,96 are provided.

The signaler 91 is located at the entrance of the branch pipe installation position, the signaler 92 is located slightly before the entrance to the branch pipe 81A, the signaler 93 is located slightly before the entrance to the branch pipe 81B, and the signaler 94 is located at the entrance to the branch pipe 81C. The signaler 95 is located a little in front of the entrance to the branch pipe 81D,
The signallers 96 are respectively arranged at the outlet portions of the branch pipe arrangement positions.

Here, the big receiving valve 71 is disposed downstream of the branch portion of the transfer pipe 50 with each of the branch pipes 81A to 810, and a signaler 97 is disposed in the transfer pipe 50 immediately upstream thereof. ing.

The big receiving valve 71 is a three-way valve with a branch pipe 98.9.
9 are connected to the discharge pipe 84 and the big receiver 52, respectively.

The above-described valves, pumps, and flow switches are all connected to a control device 101 called a sequencer, and their operations are automatically controlled by the sequencer 101.

FIG. 2 shows the relationship with signals when switching control of the big receiving valve 71 is performed by the sequencer 101. 3 and 4 show the structure of the Vigrezi-pink valve 71. FIG.

In these figures, the Vigrezi-pink valve 71 has a valve body 102 and a substantially spherical inner valve 103 rotatably supported within the valve body 102.

The valve body 102 is kept airtight by a seat ring, and has four ports 104A, 104B, 104C,
It has 104D. Port 104A is connected to transfer tube 50 and is the fluid and vig 54 inlet port. Ports 104B and 104C are branch pipes 99 and 104C, respectively.
98. 104B is an exit port for the Vig 54 and the Vig condensate liquid to the Vig receiver 52, and 104C is an exit port for the Vig preliquid to the discharge pipe 84.

104D is a port to pressure switch 106.

The above signalers 97, 72 are connected to these ports 104A, 10
They are respectively arranged near 4B.

These signalers 97 and 72 detect the passage of the VIG 54 and output detection signals to the sequencer 101. Further, 107 is a limit switch that detects the closure of the big receiving valve 71 in the inner valve 103,
A detection signal is output to the sequencer 101. moreover,
108 is a solenoid valve that opens and closes the pipe line 110 between the ports 104D and 104A in response to a signal from the sequencer 101.

109 is an actuator for the inner valve 103, which is operated by the output signal of the sequencer 101 and
This is to switch the rotation position of 03. Sequencer 1
01 is an operation start signal of the device, a signal from the big signaller 97, an input signal from the pressure switch 106 informing that the pressure is above a predetermined value (arrival of the big 54), an inner valve 1030 rotation angle signal from the limit switch 107, etc. Based on this, the electromagnetic valve 108 and actuator 109 are controlled.

Further, as shown in FIGS. 3 and 4, the inner valve 103 has a substantially spherical shape and has an orifice 112 penetrating through the center. A spherical recess 113 having the same diameter as the spherical big 54 is formed at one end of the orifice 112 . That is, the opening 113 at one end of the orifice 112 is expanded into a concave shape to a size that can receive the vig 54. For example, Big 54
is formed in such a size that it is completely contained within the recess 113. Therefore, from the inlet port 104A, the recess 11
The big 54 sent into 3 closes the orifice 112, and after pigging? No night is expelled through this orifice 112.

In addition, a pilot valve 11 is provided at the recess 113 which is the opening end of the orifice 112 to detect when the big 54 reaches the recess 113.
5 are arranged.

This pilot valve 115 is shown in detail in FIGS. 5 and 6. That is, the pilot valve 115 is
4 is arranged at a position where it abuts from the front. The pilot valve 115 is formed in the inner valve 103 and has a recess 113 at one end and a slit at the other end, and a cylindrical case 117 is fitted into a hole 116 that opens on the outer peripheral surface. A valve body 118 is held in the cylindrical case 117 so as to be slidable in the axial direction of the case.
The tip of 18 is constantly urged by a spring 119 in the direction of protruding into the recess 113 .

An opening 121 that communicates with the orifice 112 via a passage 120 is formed in a predetermined position of the cylindrical case 1170, while a communication passage 122 that opens on the outer peripheral surface of the valve body 118 is formed. Therefore, when the valve body 118, which is normally in the state shown in FIG. 5 with the spring 119 biased, is brought into contact with the big 54 and positioned in the position shown in FIG. It is a communication trick.

Note that if the big receiving valve 71 has the inner valve 103 in the state shown in FIG.
is in communication with the pressure chamber 123. The pressure chamber 123 communicates with and is connected to the conduit 110 and the pressure switch 106 via the above-mentioned bow 104D.

Next, the operation of the fluid transfer device configured as described above will be explained.

First, before starting to transfer the fluid, the liquid type transferred in the previous transfer operation (here, the B liquid type) is selected from the sequencer 101.
After the operator confirms that the memory display is displayed, the launching valve 53 is opened and closed once, and one of the bigs 54 stored in the big launcher 51 is sent through the signaler 59. It leads to the big launcher exit valve 58.

Then, after the transfer source 57 completes transfer preparation including activation of the transfer pump for the next liquid type to be transferred (here, C liquid type), the operator inputs a transfer start signal to the sequencer 101. The on-off valve 55 is opened.

As a result, the transfer pressure of liquid C, which has already been increased in pressure, is applied to the big launcher 5], and the branch pipe on-off valve 83B for liquid B stored in the sequencer 101 is opened and fully opened under the control of the sequencer 101.

Then, after a certain period of time has passed after the sequencer 101 receives the transfer start signal, the big launcher outlet valve 58 is opened, and the big launcher 54 is not pushed by the transfer pressure of liquid C, so it exits the big launcher outlet valve 58 and enters the transfer 50. big receiver 52
Move to the side. That is, the B liquid remaining in front of the BIG 54 in the transfer pipe 50 is transferred to the branch pipe 81 via the on-off valve 83B.
Transfer destination 82 B IX begins to be washed away from B.

Note that when the VIG 54 passes through the signaler 60, a VIG movement start signal is input to the sequencer 101.

When the VIG 54 moving toward the VIG receiver 52 in the transfer pipe 50 passes through the signaler 91 and reaches the liquid type synchronizer 92, the VIG receiving valve 71 and the B liquid merging on-off valve 85B are opened by the sequencer 101, and The opening degree of the branch pipe on-off valve 83B is adjusted to ensure an appropriate flow rate of the B liquid that flows into the branch pipe 81B via the merging pipes 84, 84B.

Then, when the VIG 54 further moving in the transfer '250 reaches the liquid type side signaler 93, the sequencer 101 fully opens the branch pipe on-off valve 83B, and this continues until the VIG 54 reaches the liquid type side signaler 94. maintain the condition.

Then, when the VIG 54 moves within the transfer pipe 50 and reaches the signaler 94, the sequencer 101 opens the liquid type side branch pipe on-off valve 83C.

However, at this time, in order to allow the VIG 54 to continue moving within the transfer pipe 50, the back pressure to the VIG 54 is maintained by adjusting the opening degree of the branch pipe on-off valve 83C.

In addition, the timing to open the on-off valve for the branch pipe to the extent that the VIG back pressure can be maintained is not only immediately after the VIG 54 has passed the branch position to the branch pipe, but also when the branch pipe to the branch pipe is opened at the VIG 54. This may be done after a while after 54 has passed.

For example, when changing the transfer from liquid A to liquid B,
4 reaches the signaler 94, the branch pipe on-off valve 83B
In addition to the mode of use in which the branch pipe on-off valve 83B is opened to the extent that the VIG back pressure can be maintained, when the VIG 54 reaches the signaler 95, the branch pipe on-off valve 83B may be opened to the extent that the VIG back pressure can be maintained.

Then, the big receiving valve 7 is moved inside the transfer pipe 50 and
When the big 54 that passed through 1 passes through the signaler 72,
The big receiver artificial valve 71 is quickly closed by the sequencer 101, and the branch pipe on-off valve 83C is fully opened.

Then, the flow rate of liquid C is increased to complete switching of the type of liquid to be transferred in the transfer pipe 50.

The sequencer 101 receives the VIG passage signals from two type signalers provided immediately upstream of each type of branch pipe and one signaler provided immediately downstream, and controls the branch pipe on-off valve and the merging pipe on-off valve. Since the mechanism is such that the type of fluid can be transferred no matter how the bending l1tif of the fluid type changes.

On the other hand, the VIG 54 that has reached the VIG receiver 52 as described above stops moving within the VIG receiver 52.

Then, the sequencer 101 that receives the signal when it passes the signaler 72 fully opens the confluence pipe on-off valve 85B, fully opens the train valve 74 and the train pump discharge valve 86B on the liquid type side, and further opens the train pump 79. When activated, the B frt remaining in the big receiver 52 and the B liquid remaining upstream of the confluence pipe on-off valve 8bB are transferred to the branch pipe 81B via the liquid type side drain pump discharge valve 86B,
Collect the remaining liquid in the system.

Note that after a certain period of time has passed after starting the train pump 79, the gas suction valve 80 is opened by the sequencer 101 to ensure the recovery of the residual liquid in the system, but the residual liquid in the system disappears and the drain recovery liquid disappears. Flow switch 7
7 is detected, the drain pump 79 is stopped, the drain pump liquid type discharge valve 86B and the drain valve 74 are each fully closed, and this state is continued for a certain period of time to complete the recovery of the residual liquid around the big receiver.

The residual liquid collection around the big receiver is completed as described above, and then C? When the transfer of C liquid is completed and the operator inputs the transfer end signal of this liquid C to the sequencer 01, the sequencer 101 fully closes the system inlet valve 55 and the big launcher outlet valve 58, and also closes the train valve 62 and the train valve 62. The pump discharge valve 63 is fully opened.

Then, the drain pump 65 is started, and after a predetermined period of time has elapsed since the start, the gas suction valve 69 is fully opened, and the residual liquid inside the vilauncher 51 and the receiving pipe 56 is recovered.

When the residual liquid in the system is collected in this manner and the train pump 65 idles, the gas suction valve 69 is fully closed, the drain pump 65 is stopped, and the destination branch on-off valve 83C is fully closed. Finish all work.

Further, the present invention can be used to transfer not only liquids but also all fluids including gases and the like.

Here, according to FIGS. 3 to 6, the big receiving valve 7 is
Operation 1 will be explained.

We will explain the state in which the transfer operation starts from the next batch.

In this state, the big receiving valve 71 is fully closed as shown in FIG. Then, the big 54 is connected to the recess 1.
13 does not exist.

The inlet port 104A side is filled with a fluid for the hatch (Vig pre-liquid). Outlet port 104B, 1
The 04C portion is at atmospheric pressure. For this reason, pressure switch 1
06 inputs an OFF signal to the sequencer 101.

When a signal for opening the inner valve 103 is inputted from the sequencer 101 to the actuator 109, the inner valve 103 is rotated by 90 degrees to the state shown in FIG. The big receiving valve 71 is fully opened.

The pre-VIG liquid sent through the transfer pipe 50 is passed through the orifice 11.
2 and flows from outlet port 104C to branch pipe 98. At this time, the pressure switch 106 is still outputting an OFF signal.

When the Vig 54 instantaneously hits the signaler 97 to activate it and is sent into the τ recess 1]3, communication with the orifice 112 is completely cut off. At this time, pilot valve 1
15 operates and moves from the state shown in Fig. 5 to the state shown in Fig. 6.
, the pressure chamber 123 and the orifice 112 are communicated with each other. As a result, the pre-Vig liquid flows from the orifice 112 to the passage 120,
121 and 122 into the pressure chamber 123. The inflow of Big condensate from 104A is stopped.

The pressure switch 106 detects this increase in pressure in the pressure chamber 123 and outputs an ON signal to the sequencer 101.

The sequencer 101 receives the operation start signal and the signaler 9.
7 and the ON signal of the pressure switch 106, a fully closed signal of the big receiving valve 71 is output.

Operate the actuator 109 to open the inner valve】03
is rotated to the state shown in FIG.

In this state, the big 54 pushes up the valve body 118 of the pilot valve 115 to open it (Fig. 6).
The Vig condensate flows from the slit into the orifice 112 via the hole 116. As a result, the big 54° is pressed and begins to separate from the recess 113. At this time, Big 5
4 moves a little toward the port 104B, the pilot valve 115 closes. The inflow of Vig condensate is stopped.

The sequencer 101 controls the limit switch 1 to fully close the valve 71.
07, and the solenoid valve 108 is opened. The liquid drained from the VIG flows into the pressure chamber 123 and the orifice 112 via this conduit 110, resulting in pushing the VIG 54 into the VIG receiver 52. When the vig 54 hits the signaler 72, the solenoid valve 108 shuts off the conduit 110.

In this way contamination within the big receiver is prevented.

FIG. 7 shows a cross-sectional view of a big receiving valve according to another embodiment of the invention.

As shown in this figure, this pig receiving valve 200 differs from the pig receiving valve 71 of the above embodiment in that the pilot valve 115 is not attached to the inner valve 103. Therefore, the inner valve 103 has a recess 11
Only the orifice 112 with 3 is formed. A differential pressure switch 201 is provided in place of this pilot valve. This differential pressure switch 201 is
The arrival at the recess 113 is detected and a signal is output to the sequencer 101. For example, a tire flam type differential pressure switch is used as the differential pressure switch. Differential pressure switch 2
01 via pipes 202 and 203) 10
4A and outlet port 104C are input, and when the differential pressure between these ports 104A and 104C is large (during big receive), an ON signal is output. Conduit 202 connects to port 104 of conduit 110
It communicates with the A side. Note that the pressure chamber 123 is connected to the pipe line 110.
It communicates with the inlet bow (104A) via a solenoid valve 108.

The other configurations are the same as those of the above embodiment.

Therefore, in this pig receiving valve 200, the vig 54 fed into the recess 113 from the inlet port 104A closes the orifice 112. As a result, the differential pressure switch 201 detects that the differential pressure between the inlet bow) 104A and the outlet bow) 104C introduced via the conduits 202 and 203 is large, and outputs a signal to the sequencer 101 to receive the VIG. . The sequencer 101 is the actuator 10
9 to rotate the inner valve 103 to the soft state shown in FIG.
Lead high pressure to 23. As a result, the VIG 54 is discharged from the recess 113 to the VIG receiver 52 via the outlet port 104B by f'2. Furthermore, the signaller 72 detects the discharge of the VIG 54 and closes the solenoid valve 108.

Therefore, even in the pig receiving valve 200, when the big 54 is received, the big 54 closes the orifice 1]2, and the pig wetted liquid is not discharged from the outlet port 104C to the branch pipe 98 through the orifice 112. This valve 200 completely prevents contamination between the VIG pre-liquid and the VIG drained liquid.

In this embodiment, in addition to completely preventing contamination, it is also possible to manufacture a smaller pig receiving valve by eliminating the pilot valve.

Therefore, it can also be applied to small diameter transfer pipes.

<Effects> As explained above, the transfer device of the first invention of the present application can completely prevent turbidity of the fluid in the big receiver.
Continuous transfer is possible with one transfer tube. and,
Conventionally, it was necessary to adjust the opening and closing timing of valves to prevent water hammer in the piping path, but in the transfer device of the present invention, at least one valve in the fluid piping path is always opened. Therefore, water hammer can be completely prevented.

In addition, since compressed gas is not used as the power source for moving the VIG, it is expected to improve safety during transfer operations when switching liquid types, as well as eliminate the need for gas pressure boosting equipment and compressed gas air supply piping, reducing equipment costs. becomes possible.

Furthermore, when switching the liquid type, the traveling speed of the VIG at the part where the type signaler is installed can be adjusted by adjusting the opening degree of the automatic valve for the type branch pipe, so the reliability of the liquid type switching operation can be improved.

Furthermore, when testing the liquid type FJJ, processing of the residual liquid from the pig receiver to the confluence section can be carried out in parallel with the transfer of the next liquid after the switching is completed, so the time required for changing the liquid type can be shortened.

In addition, in the pig receiving valve according to the second invention of Ki and Jin, since the fluid after the Vig is completely blocked from passing through the valve by the Vig, turbidity with the fluid before the Vig can be completely prevented. It can be prevented.

Furthermore, in the big receiving valve according to the above embodiment, since the pilot valve is inserted into the inner valve, the arrival of the big can be reliably detected and reliability can be improved.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a fluid transfer device according to an embodiment of the present invention, FIG. 2 is a schematic configuration diagram showing the relationship between a sequencer and a pig receiving valve according to an embodiment, and FIGS. 4
The figures are cross-sectional views for explaining the operation of a pig receiving valve according to one embodiment, FIGS. 5 and 6 are cross-sectional views for explaining the operation of a pilot valve according to an embodiment, and FIG. The figure is a sectional view of a pig receiving valve according to another embodiment of the present invention, FIG. 8 is a block diagram of a conventional fluid transfer device, and FIG. 9 is a vehicle sieving valve of a conventional transfer device. FIG. 50 ・ ・ ・ ・ ・ ・ ・ ・ ・51 ・
・ ・ ・ ・ ・ ・ ・ ・52 ・ ・ ・ ・
・ ◆ ・ ・ ・54 ・ ・ ・ ・ ・ ・
・ ・ ・71 ・ ・ ・ φ ・ ・ ・ ・ ・
81A-81D ・ ・ ◆ ・ 82A-82D ・ ・ ・ 83A-83D ・ ・ ・ 91-97 ・ ・ ・ ・ ・ 98 ・ ・ ・ ・ ・ ・ ・ ・ 101
・ ・ ・ ・ ・ ・ ・ ・102 ・ ・ ・
・ ・ ・ ・ ・103 ・ ・ ・ ・ ・ ・
・ ・104A・ ・ ・ ・ ・ ・ ・ ・Transfer pipe, ・Big launcher, ・Big receiver, ・Big, ・Pig receiving valve, ・Branch pipe, ・Transfer destination, ・Opening/closing valve, ・Signaler/branch pipe, ・Sequencer, ・Valve body: Inner valve, Inlet port, 104B, 104C--Outlet port, 112...
...orifice, 113... recess. Patent applicant Mitsuishi Engineering Link Co., Ltd. (and 2 others) Agent Patent attorney Kiyoshi Kuwai Figure 5 Figure 6 Procedural amendment 5. Date of amendment order Vol. 1, Indication of the case, 1999 Patent Application No. 85599, 2, Name of the invention, Fluid transfer device and vehicle sieving valve 3, Person making the amendment, Relationship with the case, Patent applicant address, Port of Tokyo. Address: 6-12, Toranomon-ku, 1st Floor, Otsuki Apartment, 40-4 Kamiyama-cho, Shibuya-ku, Tokyo, ``Detailed Description of the Invention'' section of the specification subject to amendment and ``Figure 1'' of the drawings 7 , Contents of amendment (1) “Drain valve 7
The phrase "via train valve 74A" should be corrected to "via train valve 74A." (2) On page 12, lines 3-4, r80 is big receiver 5.
2 gas inlet (for example, air inlet)"
"80A is the gas inlet port of the big receiver 52,
B is corrected to ``gas inlet (for example, air inlet) of the dispensing liquid recovery branch pipe 84 from the vehicle sieving valve 71 via the on-off valve 74B''. (3) In the third line of page 13, the phrase "connected to the branch pipe 98" was replaced with "connected to the branch pipe 98 via the on-off valve 74B".
and correct it. (4) On page 13, line 5 of the same page, it says “from valve 74”.
Correct it to "from valve 74A." (5) In the same page 20, line 15, "71 and liquid B" is corrected to "71 and 74B and liquid B." (6) On page 21, lines 5 and 6, "reaching signaler 94" is corrected to "reaching signaler 95." (7) On page 21, line 20, "Signaler 95" is corrected to "Signaler 97." (8) On page 22, lines 3 to 7, it says, “Then, the big 54 that moved inside the transfer pipe 50 and passed through the big receiving valve 71.
passes through the signaler 72, the big receiver inlet valve 7
1 is quickly closed by the sequencer 101, and the branch pipe on-off valve 83C is fully opened. ”
``Then, after passing through the big 54 or the big signaller 97 that has moved inside the transfer pipe 50, when it reaches the big receiving valve 71, the big receiving valve 71
is quickly closed by the sequencer 101, and the branch pipe on-off valve 83C is fully opened. ”
and correct it. (9) In the first line of page 23, the words "river/rain valves 74 and" are amended to read "drain valves 74B, 49 and". (10) “Train by liquid type” on page 23, lines 1 and 2.
Correct the statement to "train of liquid type". (11) In the 3rd to 4th lines of page 23, the phrase ``activated and the B liquid remaining in the Vig receiver 52'' is corrected to ``activated and the branch pipe 98 for discharging the Vig front liquid''. (12) In lines 4 and 5 of page 23, the phrase "remains on the upstream side" is corrected to "remains in the upstream confluence pipe 84." (13) On page 23, line 9, the phrase "gas suction valve 80" is corrected to "gas suction valve 80B". (],'l) On page 23, lines 14 and 15, it says, "The train valves 74 are each fully closed, and this state is continued for a certain period of time to complete the collection of the residual liquid around the big receiver." [After each of the train valves 74B and 49 are fully opened, the train valve 74A for recovering liquid C, which is the Vig condensate remaining in the Vig receiver 52, and the train pump type discharge valve 86C are fully opened, and the I-rain is opened again. pump 79
After starting the gas intake valve 80A, the sequencer 10
1, and this state is continued for a certain period of time until the residual liquid in the system disappears, completing the collection of the residual liquid around the big receiver. ” he corrected. (15) On page 25, line 3, "r104c part is atmospheric pressure"
This is corrected to ``atmospheric pressure'' because the rl 04C part was treated with the liquid remaining in the receiver and removed the pig 54 in the previous operation. (16) On page 30, line 12 of the same page, the phrase "compressed gas as a power source" has been replaced with "compressed gas such as air as a power source."
and correct it. (17) As shown in the attached sheet, the symbols 74.80 in Figure 1 have been changed to 74A, 8 f-, ), respectively, and the symbols 7
Add 4B and 80B. 8. List of attached documents (1) Figure 1 of drawings 1IiU and above

Claims (2)

[Claims] (1) In a fluid transfer device that separates and transfers multiple types of fluids within a transfer pipe by using a VIG that moves within the transfer pipe in close contact with the inner peripheral surface of the transfer pipe, the VIG is moved inside the transfer pipe. A big launcher to supply, a plurality of branch pipes that are branched in parallel from the transfer pipe and communicate with each transfer destination according to the type of fluid, and The on-off valve provided, the signaler that detects that the VIG has passed through these branch parts, and the VIG that passes through the branch part of the branch pipe corresponding to the fluid being transferred earlier, the signal of the branch part is detected. A control means that closes the on-off valve and opens the on-off valve of the branch pipe when the VIG passes through a branch part of the branch pipe corresponding to the fluid following the fluid, and a VIG receiver that receives the VIG from within the transfer pipe. In addition, a big receiving valve is installed at the branch point between the branch pipe and the transfer pipe that are arranged closest to the big receiver, to transfer the fluid before the big to the branch pipe, and switch the big to the big receiver and supply the fluid. A fluid transfer device characterized by: (2) In a fluid transfer device in which multiple types of fluids are separated from each other and transferred within the transfer pipe by a vig that moves within the transfer pipe in close contact with the inner peripheral surface of the transfer pipe, the transfer pipe and the fluid A big receiving valve disposed at a branch point with a branch pipe to a transfer destination, the valve body having at least an inlet port communicating with the transfer pipe and two outlet ports communicating with the branch pipe and the big receiver, respectively. , an inner valve that is rotatably supported within the valve body and has an orifice that communicates between the inlet port and one of the two outlet ports; A big receiving valve characterized by having a recess that receives and holds the big and closes an orifice by the held big.