JPH0631255Y2 - Solenoid valve with bypass valve - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a solenoid valve with a bypass valve, which is used, for example, in a pipe for carrying steam.

[Conventional technology]

Conventionally, as a solenoid valve for piping as described above, a flow path having a fluid inlet at one end and a fluid outlet at the other end is formed in the body,
A body in which an electromagnetic valve body that linearly reciprocates in a direction orthogonal to the axial direction of the flow path is attached to this body is generally used.

In the solenoid valve configured as described above, since the solenoid coil that operates the solenoid valve element must be vertical,
When transporting a fluid such as water vapor in the vertical direction,
As illustrated in the figure, vertical inlet side and outlet side pipes 1, 2
Is connected to a U-shaped pipe line 3, a solenoid valve 4 is arranged in a horizontal portion of the pipe line 3, and a vertical bypass pipe line 5 that bypasses the solenoid valve 4 to the inlet side and outlet side pipes 1 and 2. Are connected in a straight line, and a manually-operated bypass valve 6 is provided in the pipe line 5. In FIG. 4, 7 is a strainer, 8 and 9 are manual stop valves provided on the upstream side and the downstream side of the strainer 7 of the U-shaped conduit 3 and the solenoid valve 4, respectively, and 10 is the inlet side pipe 1. It is the original valve provided in.

Then, normally, the main valve 10, the stop valves 8 and 9 are opened, the bypass valve 6 is closed, and a fluid such as steam is sent from the inlet side pipe 1 to the outlet side pipe 2 via the U-shaped pipe line 3.
Further, when the solenoid valve 4 is closed due to a power failure or the like and is kept in this state, by opening the bypass valve 6,
The fluid is sent from the inlet side pipe 1 to the outlet side pipe 2 via the bypass line 5.

In addition, as shown in JP-A-60-136684 and the like, 1
There has been a solenoid valve in which one body is provided with an electromagnetic valve passage, an electromagnetic valve body that opens and closes the passage, a solenoid coil, and the like, and a bypass valve is provided in a bypass passage that connects both sides of the electromagnetic valve body.

[Problems to be solved by the device]

However, in the piping using the conventional general solenoid valve shown in FIG. 4, since the U-shaped conduit and the bypass pipe are provided, the T-shaped joint is used, and the piping configuration becomes complicated and There is a problem that a large space is required and the number of man-hours required for piping work is increased, resulting in poor workability.

Further, since the solenoid valve with the bypass valve disclosed in JP-A-60-136684 has the solenoid valve passage and the bypass passage in one body, it is not necessary to provide the bypass pipe in the pipe. Although the piping configuration can be simplified, the solenoid valve body for opening and closing the solenoid valve flow path, solenoid coil, etc. must be moved up and down with the axial direction kept vertical to open and close the solenoid valve flow path. However, there is a need for two types of solenoid valves, one that is used when the pipe to which the solenoid valve is attached is vertical and one that is used when the pipe is horizontal. There was a point.

The present invention solves the above-mentioned problems and simplifies piping, and one model can be used for vertical piping and horizontal piping, which can reduce the cost and can be used for vertical and horizontal piping. In addition to easy switching work, the axial direction of the solenoid valve body, solenoid coil, etc. can always be kept vertical, and these can be operated reliably and stably.
It is intended to provide a solenoid valve with a bypass valve.

[Means for Solving the Problems]

The solenoid valve with a bypass valve of this invention has a fluid inlet 1 at one end.
2a, the middle portion of the main flow path 12 having a fluid outlet 12b at the other end is partitioned by a partition wall 13, and one side surface is connected to the upstream side communication port 12c that communicates with the fluid inlet 12a side of the main flow path 12 and the downstream side that communicates with the fluid outlet 12b side. A manual bypass valve body 15 that opens each of the side communication ports 12d, forms a bypass flow passage 14 for communicating the upstream side and the downstream side of the partition wall 13 of the main flow passage 12 on the other side, and opens and closes the bypass flow passage 14 The first body 11 mounted with the first body 11 and the downstream side portion 19b and the downstream side portion 19 that are opened at the side surface facing the one side surface of the first body 11 so that the center thereof coincides with the downstream side communication port 12d of the main flow passage 12.
An annular upstream side portion 19a, which is arranged concentrically on the outer peripheral side of b and communicates with the upstream communication port 12c and opens, has solenoid valve passages 19 formed in the direction orthogonal to the main passage 12, respectively.
An electromagnetic valve body 20 that linearly reciprocates in the axial direction orthogonal to the upstream and downstream side flow paths 19a and 19b to open and close an intermediate portion 19c of the electromagnetic valve flow path 19, and a solenoid coil 24 that operates the electromagnetic valve body 20 are mounted. The second body 17 is provided, and the opposite side surfaces of the second body 17 are brought into contact with one side surface of the first body 11 to move the first and second bodies 11 and 17 around the axis of the downstream communication port 12d. It is fixed by bolts so that relative displacement of 90 ° is possible.

[Action]

In the solenoid valve with a bypass valve according to the present invention, the bypass flow passage 14 is normally closed by the bypass flow passage 14 so that when the solenoid valve body 20 is opened, the fluid inlet 1 of the main flow passage 12 is opened.
Fluid outlet 1 of main passage 12 from solenoid valve passage 19 from 2a
When a fluid such as steam is sent to 2b and the electromagnetic valve body 20 closes the electromagnetic valve flow path 14 due to a power failure or the like and the state is maintained in this state, the bypass valve body 5 is manually operated to open the main flow. Fluid can be sent from the fluid inlet 12a of the passage 12 to the fluid outlet 12b of the main passage 12 through the bypass passage 14, and conventionally, a separate solenoid valve and a bypass valve are provided as U-shaped pipe passages and bypass valve pipe passages. The components provided in and can be combined into one, and as is clear from the piping configuration in FIG. 3, the T-shaped joint and the L-shaped joint are unnecessary, and the piping can be simplified.

Further, the solenoid valve with the bypass valve according to the present invention has a bolt 18 for fixing the first body 11 and the second body 17 together.
And the solenoid valve passage 1 formed in the second body 17 and the downstream communication port 12d of the main passage 12 formed in the first body 11.
The first body 1 is centered on the center of the downstream side portion 19b of 9
1 and the second body 17 can be displaced relative to each other by 90 °, and the main flow path 1 of the first body 11 shown in FIG. 3 can be displaced.
2 and the axial directions of the solenoid valve body 20 and the solenoid coil 24 provided on the second body 17 are parallel to each other.
By tightening and fixing 1, 17
The body 11 can be assembled and connected, and the axial direction 12 of the main flow path
And the first and second bodies 11 and 17 are fixed with bolts 18 with the solenoid valve body 20 and the solenoid coil 24 being orthogonal to each other in the axial direction, so that the first body 11 is incorporated into a horizontal pipe for connection. Even if the solenoid valve body 20 and the solenoid coil 24 can be made vertical, one type of solenoid valve with a bypass valve can be used for vertical piping and horizontal piping, and it can be used for vertical piping and horizontal piping. The cost can be reduced compared to manufacturing a model solenoid valve with a bypass valve.

Then, the first and second bodies 11 and 17 are connected to the downstream side connection port 1
2d, relative displacement by 90 ° about the downstream side portion 19b makes it easy to switch between vertical and horizontal piping, and at this time, the solenoid valve flow passage 19 communicating with the upstream communication port 12c of the main flow passage 12 is formed. The upstream side portion 19a of the upstream side communication port 1
Since it has an annular shape concentric with 2c, the first and second bodies 1
Even when the 1, 1 are relatively displaced as described above, the communication between the upstream side communication port 12c and the upstream side portion 19a can always be ensured, and further, the solenoid coil 24 is positioned above the electromagnetic valve body 20 and these are always maintained. It can be held vertically, and it is possible to reliably perform stable operation.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 1 and 2, 11 is a first body, a main flow path 12 is formed in a straight line on the right side of the first body 11 in FIG. 1, and the main flow path 12 has a partition wall at an intermediate portion in the axial direction. Partitioned by 13, a fluid inlet 12a is formed at the upper end and a fluid outlet 12b is formed at the lower end. A bypass flow passage 14 is formed on the left side of the main flow passage 12 of the first body 11, one end of the bypass flow passage 14 is in communication with the fluid inlet 12a side of the partition wall 13 of the main flow passage 12, and the other end is the partition wall of the main flow passage 12. 13 communicates with the fluid outlet 12b side. Bypass channel 1
No. 4 shaft part 15a of the manual bypass valve body for opening and closing the intermediate part
Is fastened to the left end portion of the first body 11 by bolting and is slidably fitted to the cap 16 forming a part thereof. The screw provided on the shaft portion 15a of the bypass valve body 15 is screwed into the cap 16, and the cap 16 of the shaft portion 15a is
A knob 15b is fitted and fixed to the tip portion protruding outward. A flange 11a having a substantially square shape is formed on the right side of the first body 11, and a downstream side communication port 12d having a center at a position corresponding to the center of the flange 11a has a main flow path 12a.
Of the main flow path 12a near the partition wall 13 of the main flow path 12a is communicated with the fluid inlet 12a side of the main flow path 12a, and the upstream and downstream communication ports 12c and 12d are connected to each other. Each of the first body 11 is opened on the flat right side surface.

The flat left side surface of the second body 17 is brought into contact with the right side surface of the first body 11, and the four corner portions of the flange 11a are equidistant from the center of the flange 11a of the first body 11 at angular intervals of 90 °. The second body 17 is detachably fixed by the bolts 18 arranged at. A solenoid valve passage 19 is formed in the second body 17, and the solenoid valve passage 19 is formed.
Is the downstream side communication port 1 to the downstream side communication port 12d of the main flow path 12.
The downstream side portion 19b having the same diameter as that of 2d is opened and communicated in a state where the centers thereof coincide with each other, and the upstream side portion 19a which is opened and communicated with the upstream side communication port 12c of the main flow path 12 has a horizontal axial direction. Is formed in an annular shape concentric with the center of the downstream side portion 12b, and the upstream side portion 19a and the downstream side portion 19b are communicated with each other by an intermediate portion 19c whose axial direction is vertical, that is, parallel to the main flow passage 12, and the solenoid valve flow passage 19 The solenoid valve body 20 for opening and closing the intermediate portion 19c of the above is attached to the second body 17. The solenoid valve body 20 is capable of linearly reciprocating in the vertical axis direction.
The electromagnetic valve body 20 is fixed on the body 17 and is fitted and supported by a stuffing 21 which constitutes a part of the body 17, and the electromagnetic valve body 20 is provided with a spring 22 interposed between the stuffing 21 and the stuffing 21.
Is urged downward by the closing direction. A plunger 23 is arranged above the stuffing 21, a solenoid coil 24 is arranged above the plunger 23, and the solenoid core 24a and the plunger 23 are arranged concentrically with the solenoid valve body 20 with its axial direction perpendicular. There is.

In FIG. 1, 25 and 26 are pilot flow passages provided in the second body 17, 27 is a pilot valve seat, 28 is a spring for pressing the plunger 23 against the pilot valve seat 27, and 29 is a spring.
Is a valve chamber, and 30 is a terminal box for supplying power to the solenoid coil 24.

Then, when the solenoid coil 24 is energized, the plunger 23 is attracted to the solenoid core 24 a and is separated from the pilot valve seat 27, so that the valve formed between the solenoid valve body 20 and the upper portion of the stuffing 21. The fluid in the chamber 29 flows to the lower portion 19b of the solenoid valve passage 19 via the pilot passage 26 on the downstream side, and the fluid pressure in the valve chamber 29 causes the fluid pressure in the solenoid valve passage 19 on the upstream side of the solenoid valve body 20. The pressure becomes lower than the supply pressure, the solenoid valve body 20 rises and opens, and the fluid flows from the upstream side portion 19a of the solenoid valve flow path 19 to the downstream side portion 19b via the intermediate portion 19c. When the solenoid coil 24 is de-energized, the spring force of the spring 28 causes the plunger 23 to separate from the solenoid core 24a and contact the pilot valve seat 27, closing the pilot flow passage 26 on the downstream side. 25, the fluid is supplied to the valve chamber 29, the pressure in the valve chamber 29 becomes equal to the supply pressure,
Therefore, the electromagnetic valve body 20 descends due to the spring force of the spring 22 and closes the intermediate portion 19c of the electromagnetic valve flow path 19.
The opening / closing operation of the solenoid valve 20 is similar to that known as a pilot operated solenoid valve.

As shown in FIG. 3, the electromagnetic valve 31 with the bypass valve of the embodiment configured as described above is the main valve 10 of the inlet side pipe 1.
The downstream side is connected via the strainer 7 to the fluid inlet 12a of the main flow path provided in the first body 11, the outlet side pipe 2 is connected to the fluid outlet 12b, and a stop valve (not shown) is connected to the outlet side if necessary. It is installed in the pipe and used. In this case, even if the inlet-side and outlet-side pipes 1 and 2 are arranged vertically, the solenoid coil portion 24 becomes vertical, so that the U-shaped pipe line and the T-shaped and L-shaped joints are unnecessary.

When the solenoid valve body 20 is energized and opened upward by normally opening the main valve 10 and closing the bypass valve body 15 in the normal state, fluid such as steam is removed from the inlet side pipe 1. The upstream side portion 19 of the solenoid valve flow path 19 is passed through the fluid inlet 12a of the main flow path 12 and the upstream communication port 12c.
a to the intermediate part 19c and the downstream side part 19b.
To the downstream side communication port 12d of the mainstream side 12 and further to the outlet side pipe 2 via the fluid outlet 12b. Also,
When the electromagnetic valve body 20 closes the electromagnetic valve flow path 19 due to a power failure or the like and is kept in this state, the bypass valve body 15
Is opened by manual operation so that the fluid flows from the inlet side pipe 1 to the fluid inlet 12a of the main passage 12 and the bypass passage 14
And the outlet side pipe 2 through the fluid outlet 12b of the main flow path 12
Send to.

If the bypass valve body 15 is held open due to a failure, the main valve 10 may be closed. Also, the original valve 1
If 0 is not closed, a stop valve may be provided in the outlet side pipe 2 and this valve may be closed. Further, when the solenoid coil 24 or the like on the side of the electromagnetic valve body 20 fails, the main valve 10 is closed, the second body 17 is removed from the first body 11 together with the members such as the electromagnetic valve body 20 attached thereto, and a new If the first body 11 and members such as the bypass valve body 15 attached to the first body 11 are not replaced, they need not be replaced.

In the above description, the case where the inlet side and outlet side pipes are vertical and the fluid is sent from the upper side to the lower side is described. However, the bolt 18 is removed and the second body 17 is removed from the state shown in FIG. The downstream side portion 19 of the solenoid valve flow path 19 is located above the plane of the drawing.
Even if the inlet side and outlet side pipes are horizontal, the second body 17 is fastened and fixed to the first body 11 with the bolt 18 at this position by rotating 90 ° about the center of b as an axis. Since the upstream side portion 19a of the solenoid valve flow passage 19 of the body 17 is formed in an annular shape concentric with the downstream side portion 19b, the upstream side communication port 1 of the upstream side portion 19a and the main flow passage 12
The communication with 2c is ensured, and since the downstream side portion 19b and the downstream side communication port 12d have the same center, the communication with them is also ensured. Therefore, since the inlet side and outlet side pipes may have the same diameter, one model can incorporate the solenoid coil 24 and the electromagnetic valve body 20 with their axial directions vertical, as in the case where these pipes are vertical. .

[Effect of device]

As described above, the solenoid valve with the bypass valve according to the present invention has the fluid inlet 12a at one end and the fluid outlet 12b at the other end.
The intermediate portion of the main flow path 12 having the above is partitioned by a partition wall 13, and one side is provided with an upstream communication port 12c communicating with the fluid inlet 12a side of the main flow path 12 and a downstream communication port 12d communicating with the fluid outlet 12b side. , The bypass channel 1 that connects the upstream side and the downstream side of the partition wall 13 of the main channel 12 to the other side portion
4, a first body 11 on which a manual bypass valve body 15 for opening and closing the bypass passage 14 is mounted, and a downstream side communication port of the main passage 12 on a side surface facing one side surface of the first body 11. 12d and the downstream side part 1 whose center coincides and opens
9b, and an annular upstream side portion 19a that is concentrically arranged on the outer peripheral side of the downstream side portion 19b and communicates with the upstream side communication port 12c to open, and is formed in a direction orthogonal to the main flow passage 12 respectively. 19, the upstream and downstream flow paths 19a,
19b linearly reciprocates in the axial direction orthogonal to 19b
Of the electromagnetic valve body 20 for opening and closing the intermediate portion 19c of the second body 17, and the second body 17 having the solenoid coil 24 for operating the electromagnetic valve body 20 mounted thereon.
The opposing side surfaces of the body 17 are brought into contact with each other, and the first and second bodies 11 and 17 are rotated 90 ° about the axis of the downstream side communication port 12d.
Since the bolts are fixed so that they can be displaced relative to each other, the following effects can be obtained.

That is, in the solenoid valve with a bypass valve according to the present invention, the bypass flow passage 14 is normally closed by the bypass flow passage 14 so that when the solenoid valve body 20 is opened, the solenoid valve passage is opened from the fluid inlet 12a of the main flow passage 12. When the fluid such as water vapor is sent to the fluid outlet 12b of the main flow path 12 via 19 and the electromagnetic valve body 20 closes the electromagnetic valve flow path 14 due to a power failure or the like and is held in this state, the bypass valve body 5 The fluid can be sent from the fluid inlet 12a of the main flow passage 12 to the fluid outlet 12b of the main flow passage 12 through the bypass flow passage 14 by manually opening the valve, and conventionally, a separate solenoid valve and bypass valve are connected. What was provided in the V-shaped conduit and the bypass valve conduit can be integrated into one, and as is clear from the piping configuration of FIG. 3, the T-shaped joint and the L-shaped joint are unnecessary,
The piping can be simplified.

Further, the solenoid valve with the bypass valve according to the present invention has a bolt 18 for fixing the first body 11 and the second body 17 together.
And the solenoid valve passage 1 formed in the second body 17 and the downstream communication port 12d of the main passage 12 formed in the first body 11.
The first body 1 is centered on the center of the downstream side portion 19b of 9
1 and the second body 17 can be displaced relative to each other by 90 °, and the main flow path 1 of the first body 11 shown in FIG. 3 can be displaced.
2 and the axial directions of the solenoid valve body 20 and the solenoid coil 24 provided on the second body 17 are parallel to each other.
By tightening and fixing 1, 17
The body 11 can be assembled and connected, and the axial direction 12 of the main flow path
And the first and second bodies 11 and 17 are fixed with bolts 18 with the solenoid valve body 20 and the solenoid coil 24 being orthogonal to each other in the axial direction, so that the first body 11 is incorporated into a horizontal pipe for connection. Even if the solenoid valve body 20 and the solenoid coil 24 can be made vertical, one type of solenoid valve with a bypass valve can be used for vertical piping and horizontal piping, and it can be used for vertical piping and horizontal piping. The cost can be reduced compared to manufacturing a model solenoid valve with a bypass valve.

Then, the first and second bodies 11 and 17 are connected to the downstream side communication port 1
2d, relative displacement by 90 ° about the downstream side portion 19b makes it easy to switch between vertical and horizontal piping, and at this time, the solenoid valve flow passage 19 communicating with the upstream communication port 12c of the main flow passage 12 is formed. The upstream side portion 19a of the upstream side communication port 1
Since it has an annular shape concentric with 2c, the first and second bodies 1
Even when the 1, 1 are relatively displaced as described above, the communication between the upstream side communication port 12c and the upstream side portion 19a can always be ensured, and further, the solenoid coil 24 is positioned above the electromagnetic valve body 20 and these are always maintained. It can be held vertically, and it is possible to reliably perform stable operation.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a solenoid valve with a bypass valve according to an embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is a piping configuration diagram showing an example of the same usage state, and FIG. FIG. 6 is a piping configuration diagram showing an example of a usage state of the electromagnetic valve of FIG. 1, 2 ... Inlet side, outlet side piping, 11 ... First body, 11
a ... Flange, 12 ... Main channel, 12a, 12b ... Fluid inlet, Fluid outlet, 12c, 12d ... Upstream side, downstream side communication port, 13 ... Partition wall, 14 ... Bypass channel, 15 ... Manual bypass valve element, 16 … Cap, 17… Second body, 18
... bolts, 19 ... solenoid valve flow paths, 19a, 19b, 19c
... upstream side, downstream side, intermediate part, 20 ... electromagnetic valve body, 21
... stuffing, 22 ... spring, 23 ... plunger, 24 ... solenoid coil, 28 ... spring, 31 ... solenoid valve with bypass valve.

Claims (1)

[Scope of utility model registration request] 1. A fluid inlet 12a at one end and a fluid outlet 1 at the other end.
The intermediate portion of the main flow path 12 having 2b is partitioned by a partition wall 13,
An upstream communication port 12c that communicates with the fluid inlet 12a side of the main flow passage 12 and a downstream communication port 12d that communicates with the fluid outlet 12b side are opened on one side face, and the main flow passage 1 on the other side.
The first body 11 in which the bypass passage 14 that connects the upstream side and the downstream side of the second partition wall 13 is formed, and the manual bypass valve body 15 that opens and closes the bypass passage 14 is mounted, and one of the first body 11 The downstream side communication port 12d of the main flow path 12 has a downstream side portion 19b whose center coincides with the side surface opposite to the side surface, and a downstream side portion 19b. An annular upstream side portion 19a that communicates and opens has an electromagnetic valve flow passage 19 formed in a direction orthogonal to the main flow passage 12, respectively, and is linear in the axial direction orthogonal to the upstream and downstream flow passages 19a and 19b. An electromagnetic valve body 20 that reciprocates to open and close the intermediate portion 19c of the electromagnetic valve flow path 19, and a second body 17 equipped with a solenoid coil 24 that operates the electromagnetic valve body 20 are provided. Second body 17 The opposing sides abut, first, the second body 11 and 17, a bypass valve with an electromagnetic valve, characterized in that the relatively displaceable bolted fixing of 90 ° around the axis of the downstream communication port 12d.