JPH04118183U - Liquid injection device for tanks - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a liquid injection device that can efficiently, easily, reliably, and safely clean the inner wall of a tank having fixed roof supports. [Configuration] The upper and lower bands 21, 21, which can be divided into two, are
The guide portion 20 is constructed by connecting the book connecting rods 22, 22, respectively. A nozzle support part 25 is horizontally attached to one side of this guide part 20. On the other side of the guide section 20, a balance section 42 that balances the nozzle support section 25 is provided horizontally. these,
The lengths of the nozzle support section 25 and the balance section 42 are adjustable. A spray nozzle 104 is attached to the tip of the nozzle support portion 25 to spray high-pressure water. The guide section 20, the nozzle support section 25, the balance section 42, etc. constitute a main body 2, and the main body 2 is provided with an elevating means 5 and a turning means 6 to constitute the liquid ejecting device 1. Then, this liquid injection device 1 is attached to the support of the tank.
101 with loose fit.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a liquid injection device for a tank, particularly having a fixed roof support, It can be used to clean the inside of large tanks that store crude oil, etc.

0002

[Background technology]

Conventionally, in large tanks used to store crude oil, etc., there is no need to change the type of oil used. The inside of the tank is cleaned when the tank is repaired or inspected. For example, the following work is carried out regarding tank cleaning. In other words, first, the crude oil etc. in the tank is extracted and the tank is opened, and then the manhole is removed. Scaffolding equipment will be carried into the tank. Next, this scaffolding equipment is placed along the inner wall of the tank. A worker stands on this scaffold and uses a high-pressure water jet nozzle to The tank is cleaned by sequentially spraying high-pressure water onto the inner wall of the tank. Once the tank cleaning is complete, dismantle the scaffolding and remove the scaffolding equipment from the manhole into the tank. It is being carried outside.

0003

[Problem that the idea aims to solve]

However, traditional tank cleaning requires scaffolding along the inner walls of the tank. In the case of large tanks, the amount of scaffolding equipment required is enormous. like this Many workers are required to bring in and take out scaffolding equipment through manholes, etc. It required a lot of effort and time.

0004 In addition, to construct the scaffolding, assembly work must be performed inside the tank, and the Even though the equipment is placed on top of the tank, there may be some residue left on the inner wall or bottom of the tank. The work is difficult because crude oil, etc. attached to the equipment, and it takes a lot of effort to construct the scaffolding. and time were needed.

[0005] Furthermore, the construction of the scaffolding is done to match the height of the tank, which requires assembly work at high places. Yes, it was dangerous. In addition, when cleaning the inside of the tank, workers must stand on a high platform and spray high-pressure water into the tank from the spray nozzle. Since it is sprayed against the inner wall, the reaction is dangerous to the workers. In particular, It is necessary to work carefully at the beginning, but on the other hand, if you are too careful, the work will take a long time, There was also the problem that it affected the cleaning process.

[0006] In addition, when cleaning, after cleaning a specified area on one scaffold, use high-pressure water to Spraying must be paused, moved to another platform and cleaned again, resulting in continuous work. It wasn't efficient because I couldn't do it.

[0007] By the way, when changing the type of oil such as crude oil stored in a tank, or when repairing or inspecting a tank, In order to It is hoped that cleaning work will be carried out.

[0008] The purpose of this invention is to make cleaning inside the tank quick, easy, and reliable. Both aims to provide a tank liquid injection device that can be used safely.

[0009]

[Means to solve the problem]

This invention installs a liquid injection nozzle, etc. on the inner wall of a tank that has a fixed roof and its supports. A liquid injection device for a tank that injects liquid such as high-pressure water by a nozzle support that supports the nozzle and a guide that is guided by the fixed roof support; a main body having a front section; a lifting means for moving the main body up and down in the tank; A liquid injection device for a tank was constructed by including a turning means for turning the main body.

0010 Further, the main body has a balance part that balances with respect to the nozzle support part. It is suitable if

[0011] Furthermore, the length of the nozzle support section or balance section is adjustable. Good too.

0012

[Effect]

In this invention, the guide part of the main body is guided by the support of the fixed roof of the tank. let Next, this main body is appropriately rotated by a turning means and moved up and down by an elevating means. At the same time, a liquid jet nozzle sprays liquid such as high-pressure water toward the inner wall of the tank. Clean the tank. The tank can be cleaned by vertical movement and rotation of the main body and by jetting liquid from the nozzle. Because it can be cleaned easily and reliably, the time required for work is shortened and cleaning Work can be done efficiently. In addition, these operations can be performed safely by operating the main unit on the floor of the tank. These objectives are achieved.

[0013]

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 shows an overall perspective view of a liquid injection device for a tank according to a first embodiment of the present invention. FIG. 6 shows a diagram of the use state of the injection device. As shown in these figures, the liquid ejecting device 1 includes a guide section 20, a nozzle support A main body 2 including a section 25, a balance section 42, etc., a lifting means 5 for moving the main body 2 up and down, and a turning means 6 for turning the main body 2, as shown in FIG. Fixed roof type tanks 100 and tanks with fixed roof supports 101 such as . A high-pressure water injection nozzle 104 is supported on the nozzle support portion 25 of the main body 2, and this nozzle 104 is connected to a high pressure water injection pump 102 via a hose 103.

[0014] The guide section 20 has two upper and lower bands 21 and a vertical section connecting these bands 21. It consists of a connecting bar 22, etc., and can be loosely fitted to the support column 101 of the tank 100 and can be freely attached and detached. It is said that

[0015] The bands 21 are formed semicircularly with respect to each other, as shown in detail in FIG. It has a two-part shape with a flange portion 21A, and these are attached to the support column 101. The bolt 23 is placed around the outer periphery of the bolt 23 and tightened with a bolt 23 in a loosely fitted state. Also, concatenation As the bar 22, a round bar or a square bar is used.

[0016] The nozzle support part 25 has one end connected to a lower part of the connection bar 22 of the guide part 20. At the same time, the other end has a support pipe 26 extending horizontally therefrom, and a part of the support pipe 26 extends horizontally from the other end. A small diameter pipe 27 slidably inserted into the support pipe 26 and the high pressure water injection nozzle. 104, which is installed horizontally on the guide section 20. It is. These support pipes 26 and small diameter pipes 27 are made of carbon steel pipes for piping, etc. has been done. In addition, at the end of the small diameter pipe 27 that is not inserted into the support pipe 26, An end plate 28 is provided to prevent water from entering the pipe 27. (See Figure 3).

[0017] In this way, in order to fix the length of the small diameter pipe 27 to a predetermined dimension, details are shown in FIG. This is done using the position adjusting means 29 as shown in FIG. That is, this position adjustment means 29 is fixed at a predetermined position of the support pipe 26. A nut 30, a bolt 31 screwed into this nut 30, and a head 31A of this bolt 31. It consists of a handle 32 made of a fixed round bar.

[0018] The nut 30 is inserted into a bolt insertion hole 26A formed in the support pipe 26 in its radial direction. Correspondingly fixed. Further, the tip of the threaded portion of the bolt 31 is connected to the small diameter pipe. It is chamfered to make it easier to press the button 27.

[0019] The mounting bracket 35 is fixed to the tip of the small diameter pipe 27, and is connected to the high pressure water jet. It is used to mount and fix the injection nozzle 104. This metal fitting 35 is shown in detail in Figure 3. uni, a fixing fitting 36 whose one end is fixed to the bottom of the small diameter pipe 27, and a fixing fitting 36 fixed to the bottom of the small diameter pipe 27. It consists of a pair of metal fittings, including a free metal fitting 38 that is attached with bolts 37. It is bent into a dogleg shape so that the nozzle 104 can be held securely.

[0020] Hooks are provided on the tip side of the small diameter pipe 27 and on the guide portion 20 side of the support pipe 26, respectively. ring 39 and ring 40 are installed. This hook 39 and ring 40 support the hose 103. It is something that you have. The hook 39 is a round bar shaped into an approximately J-shape, and the ring 40 is a round bar as well. are formed into a ring shape, and each is installed perpendicular to the axis of the support pipe 26. I'm being kicked.

[0021] A balance section 42 is provided on the opposite side of the guide section 20 of the nozzle support section 25. It is being That is, one end of the balance section 42 is fixed to the lower part of the connection bar 22, and the other end is fixed to the lower part of the connection bar 22. The end is connected to a weight support pipe 43 extending horizontally in the opposite direction of the nozzle support part 20. is attached to the tip of the weight support pipe 43 via the small diameter pipe 45 by the position adjustment means 29. It is composed of a weight 44 and the like, and is provided horizontally on the guide section 20. This weight support pipe 43 is the same part as the support pipe 26 of the nozzle support part 20. The small diameter pipe 45 is the small diameter pipe of the nozzle support part 25. The same one as 27 is used.

[0022] The weight 44 is used when the high pressure water injection nozzle 104 is attached to the nozzle support 20. Taking into account the weight of the support part 20 side and the recoil when high-pressure water is injected, calculate the weight of those parts. The weight is set to a predetermined value to balance the weight. This type of weight 44 has a round bar. Or, it is preferable to form it with a square bar.

[0023] The nozzle support part 20 and the balance part 42 each have a structure that allows them to be held horizontally without being bent. It has been reinforced to make it more durable. That is, the tip side of each support pipe 26, 43 and the upper part of the connection bar 22 Another reinforcing bar 47 is coupled to the reinforcing bar 46 provided diagonally across the entire length. It is reinforced in the form of a truss. Furthermore, the respective support pipes 26 and 43 and the lower band 21 of the guide section 20 are as follows: It is also reinforced with reinforcing bars 48 that are connected horizontally.

[0024] The elevating means 5 moves the main body 2 up and down, and the elevating means 5 moves the main body 2 up and down. fixed at the bottom. This lifting means 5 has a lower part as shown in detail in FIG. A mounting plate 50 is fixed across the band 21 and the connecting bar 22, and a bolt is attached to this mounting plate 50. A shackle 52 provided at the root 51 is provided, and a lift wrapped around the shackle 52 is provided. It includes a descending rope 53 and a pulley 54 (see FIG. 6) attached above the pillar 101. It is configured. The rope 53 extends upwardly along the pillar 102 and connects to the pulley 54. It hangs downward again through the. Therefore, the worker should grab this rope 53 and apply it. The main body 2 is moved up and down.

[0025] The turning means 6 is for turning the main body 2, and as shown in FIG. , a ring-shaped round bar 61 attached to the lower part of the tip side of the nozzle support part 25, and this It consists of two ropes 60 wrapped around a round bar 61 and hanging downward. There is. The operator pulls the end of the rope 60 appropriately to rotate the main body 2, Alternatively, the predetermined position of the main body 2 is maintained.

[0026] Next, the operation of this embodiment will be explained with reference to the usage state diagram of FIG. 6. Crude oil, etc. from tank 100, which requires internal cleaning, is extracted, and tank 100 is emptied. After that, a scaffold is constructed around the support pillar 101 inside the tank 100 and the support pillar 101 is cleaned. child At this time, the support 10 located along the wall of the tank 100 and closest to the wall 1, a pulley 54 for raising and lowering the liquid injection device 1 is installed, and further, It is advisable to attach the rope 53 to this pulley 54. Next, liquid is injected into the tank 100. Equipment 1 is carried in and assembled. When transporting this liquid injection device 1, first, the guide By removing the bolts 23, the upper and lower bands 21, 21 of the part 25 are connected to the nozzle support part 25 and the balance part 42. The tank will be divided into two parts and each part will be transported through the manhole of tank 100. At this time, high pressure The water injection nozzle 104 may remain attached to the support part 25, or it may be attached inside the tank 100. You can also attach it.

[0027] To attach the nozzle 104 to the support 25, connect the hose 103 of the nozzle 104 with the hook 39. While supported by the ring 40, press the nozzle 104 against the fixture 36 and 104, press the free metal fitting 38 that has been removed from the fixing metal fitting 36 in advance, and Attach the free fitting 38 to the fixed fitting 36 using the steps. At this time, hose 103 is connected to hook 39. In addition to being supported by the ring 40, it is preferable to tie it to the support column 101 with a wire or the like as appropriate for fixation.

[0028] Next, the nozzle support part 25 and the balance part 42, which were transported in two parts, are combined. That is, the upper and lower bands 21, 21 are tightened with bolts 23 to a predetermined support 101, and the Install the side part 20 in a loosely fitted state. A rope 53 is attached to the shackle 52 and round bar 61 of the main body 2 integrated in this way. , 60 are wrapped in advance, and furthermore, the rope 53 on the shirtcle 52 side is It is engaged with a pulley 54 previously attached to the support column 101.

[0029] One worker pulls the end of the rope 53 on the shackle 52 side and tamps the device 1. 100 by the specified amount. Another worker is holding two sticks hanging from the round bar 6. Grab the end of the rope 60 and fix the device 1. In this state, the high pressure water injection pump 102 is driven, and the water is discharged from the nozzle 104 to the tank 10. Clean by jetting high-pressure water toward the inner wall of the 0. At this time, operate the two ropes 60. Clean a predetermined area while rotating the machine as appropriate. After cleaning a predetermined area, the rope 53 is used to change the height position of the device 1. Then, raise or lower it by a predetermined amount and repeat the same operation as above.

[0030] Once cleaning of a predetermined area along one support 101 is completed, the device 1 is reinstalled for transport. Divide into two as shown, attach device 1 to the next support 101, and clean as described above. Thereafter, similar operations are performed until all of the inner walls of the tank 100 have been cleaned.

[0031] According to this embodiment as described above, there are the following effects. That is, in this embodiment, the injection device is installed along the support 101 of the fixed roof of the tank 100. 1 is moved up and down or rotated while jetting high-pressure water to clean it. The work is easy. Also, it can be performed continuously within a predetermined range along column 101. As a result, the work is more efficient, and as a result, compared to conventional scaffolding, This has the effect that the cleaning work of the tank 100 can be done in a short time.

[0032] In addition, the injection device 1 can be divided into two parts and carried into the tank 100, or it can be transported from the tank 100. All you have to do is carry it out, so there are fewer workers and the time taken to carry it in and out is also reduced. You don't have to do it.

[0033] Furthermore, the injection device 1 carried into the tank 100 is attached with the support column 101 in a loosely fitted state. From this point of view, it is very easy to prepare for the start of work. The time required for cleaning work can be reduced.

[0034] In addition, during the cleaning work, the worker stands on the floor of the tank 100 while moving the device 1 up and down. Grab the rope 53 and the swinging rope 60 and operate the device 1 with these ropes 60, etc. Since there is no need to work at heights like in the past, it is safer and easier to work with. It has the effect of accelerating. In addition, by operating the two ropes 60, the device 1 can be set in place. It can be rotated within a range for efficient cleaning.

[0035] Further, the small diameter pipe 27 supporting the high pressure water injection nozzle 104 is adjusted by the position adjustment means 29. Its length is adjustable, so it can accommodate the size of the tank. I can do it.

[0036] In addition, the injection device 1 is provided with a balance section 42, and the left and right sides of the device 1 are balanced. Because of this, equipment 1 can be raised and lowered smoothly, and a rope 60 for turning can also be attached. Therefore, even if the high-pressure water injection nozzle 104 injects high-pressure water, the reaction will not cause damage. The tilting and shaking of the position 1 are absorbed. As a result, stable high-pressure water jetting is possible at all times. , efficient cleaning work will be carried out.

[0037] Next, the inner wall of the tank 100 was cleaned using the liquid injection device 1 of this example. An experimental example will be described next. In other words, the experiment was conducted in a 100,000K liter tank, and the type of oil inside it was changed. The inside of tank 100 was cleaned in order to As a result, in this example, the tan It took three workers to complete the cleaning after completely draining the oil from the tank 100. It took only three days to work during normal working hours. In contrast, with the traditional cleaning method of building and using scaffolding, five people It took workers 12 days to complete. In this way, when using the injection device 1 of this embodiment, For example, the working time is significantly reduced compared to the conventional method.

[0038] FIG. 7 shows a second embodiment of the invention. In this embodiment, the balance section 42 of the main body 2 in the injection device 1 of the first embodiment is omitted. It is something that Therefore, when describing the same structure and members, the same A single reference numeral will be given, and detailed explanation will be omitted or simplified. The injection device 1A of this embodiment has a main body 2 having a guide portion 20 and a nozzle support portion 25. A, a lifting means 5 for moving the main body 2A up and down within the tank 100, and a lifting means 5 for rotating the main body 2A. It is configured to include a turning means 6 for rotating. Here, the lifting means 5 has a rope 53 wound around it. Equipped with winch 55 to take.

[0039] This embodiment also has the same functions and effects as the first embodiment. In addition to this, the following effects can be added. In other words, since the main body 2A does not have a balance section 42, the material and manufacturing costs are increased accordingly. In addition, it is easy to carry in and out. Also, the device 1 is lighter because there is no balance section 42. , the work will be easier if the worker pulls with the rope 53, and then hoists it with the winch 55. In some cases, a motor with a small capacity may be sufficient.

[0040] Note that the present invention is not limited to the above-mentioned embodiments, and may include the following modifications. This includes shape, etc. That is, in the first embodiment, the rope 53 is connected to the shackle 52 as the lifting means 5. After installation, the worker pulls the rope 53 to move the injection device 1 up and down. It is not limited to this. For example, if the rope 53 attached to the shackle 52 is You can also use a winch 55 or other hoist to move it up and down, or you can A guide rail is provided, a motor and a guide are provided on the device 1 side, and they are engaged. You can also move it up and down by moving it up and down. In short, the injection device 1 is installed along the column 101 of the tank 100. It is sufficient if it can be moved up and down.

[0041] In addition, in each of the above embodiments, the entire device 1 is divided into two parts by the bands 21 and 21 of the guide part 20. Although it is divided, the two parts of bands 21 and 21 are joined with bolt 23. For example, if one part of the band 21 is used as a hinge, only one other part can be used as a hinge. It is only necessary to tighten the bolts 23, making the work of attaching the device 1 to the support column 101 even easier.

[0042] Furthermore, in each of the above embodiments, bolts 31, nuts 30, etc. are used as the positioning means 29. However, it is not limited to this, for example, holes may be made in the support pipe 26 and the small diameter pipe 27. , a pin or the like may be inserted into the hole for positioning. In addition, positioning means 29 Then, form a slot at the tip of the support pipe 26 like a collet chuck, and Alternatively, the length of the small diameter pipe 27 can be adjusted by tightening it with a nut. It may be of any type as long as it can be positioned in an adjustable manner.

[0043] Furthermore, in each of the above embodiments, the fixed metal fitting 36 and the free metal fitting 38 are used as the mounting metal fitting 35. However, the present invention is not limited to this. For example, the mounting plate may be fixed to the small diameter pipe 27, and the nozzle 104 side A band with a flange part is fixed in advance to the mounting plate, and the flange part is fixed to the mounting plate. It may be installed.

[0044] In addition, the specific structure, shape, etc. when implementing the present invention will achieve the purpose of the present invention. Other structures may be used as long as they can be achieved.

[0045]

[Effect of the idea]

As explained above, according to the tank liquid injection device of the present invention, Cleaning can be done easily and reliably in a short period of time, and it can also be done safely. .

[Brief explanation of drawings]

FIG. 1 is an overall perspective view showing a first embodiment of a liquid injection device for a tank according to the present invention.

FIG. 2 is an enlarged plan view of the whole.

FIG. 3 is a detailed view of the main parts of the nozzle support section.

FIG. 4 is a detailed cross-sectional view of the nozzle positioning means.

FIG. 5 is a detailed view of the main parts of the elevating means.

FIG. 6 is a usage state diagram of the first embodiment.

FIG. 7 is an overall perspective view showing a second embodiment of the present invention and its usage state.

[Explanation of symbols]

1,1A liquid injection device 2,2A main body 5 Lifting means 6 Swivel means 20 Guide part 25 Nozzle support part 42 Balance section 44 Weight 100 Fixed roof tank with supports 101 Pillar

Claims (3)

[Scope of utility model registration request] 1. A liquid injection device for a tank that injects a liquid such as high-pressure water using a liquid injection nozzle or the like onto an inner wall of a tank having a fixed roof and its supports, comprising: a nozzle support portion supporting the liquid injection nozzle; The tank is characterized by comprising a main body having a guide portion guided by a support of a fixed roof, a lifting means for moving the main body up and down within the tank, and a turning means for rotating the main body. Liquid injection device for tanks. 2. The liquid injection device for a tank according to claim 1, wherein the main body has a balance section that balances with the nozzle support section. 3. The liquid injection device for a tank according to claim 1, wherein the length of the nozzle support portion is adjustable.