Movable foam scrubbing agent filling device

Abstract

The utility model relates to the technical field of natural gas well gas production auxiliary devices, and particularly discloses a movable foam scrubbing agent filling device which comprises a movable platform and an agent tank arranged on the movable platform and used for temporarily storing a foam scrubbing agent, the bottom of the agent tank is communicated with a liquid supply pipe, and a fourth shut-off valve is arranged on the liquid supply pipe; the position, close to the top, of the medicament tank is communicated with an air supply pipe, the other end of the air supply pipe is communicated with at least one air tank used for storing compressed air, a second shut-off valve is arranged between the air tank and the medicament tank, and an inflation mechanism used for being connected with an air source is arranged on the air tank. According to the foam scrubbing agent squeezing device, the foam scrubbing agent is squeezed into the liquid storage tank of the field station through high-pressure air, compared with existing manual climbing and dumping, the foam scrubbing agent squeezing device is more time-saving, labor-saving, efficient and safe, and the problem that workers fall off or the agent is dumped and scattered is fundamentally solved.

Description

Technical Field

[0001] The utility model relates to the technical field of station equipment for oil and gas exploitation, in particular to the technical field of auxiliary devices for natural gas well exploitation, and specifically to a mobile foaming agent filling device. Background Art

[0002] When natural gas well exploitation enters the middle and late stages, liquid will accumulate at the bottom of the well due to insufficient liquid carrying capacity, causing the gas well to be flooded and shut down. Therefore, the well station is equipped with an intelligent foaming agent injection device for the gas well to discharge the accumulated liquid in the gas well and maintain stable production of the gas well. Existing well stations often have four liquid storage tanks for temporary storage of foaming agents. Well station employees pour the foaming agent in small barrels into the liquid storage tank. Since the liquid storage tank is large and the height is much higher than the ground, employees usually need to walk up the stairs to pour the foaming agent, which wastes time and manpower. In addition, when pouring the foaming agent, there are problems of foaming agent leakage and people falling, resulting in waste of agents, environmental pollution and technical safety accidents. In order to solve the problems existing in the prior art, a mobile foaming agent filling device is proposed, which fills the foaming agent by pressure difference or on-site extraction, which is safer, saves time and effort.

[0003] In order to solve the above technical problems, there are similar devices in the prior art. The applicant obtained the following prior art through keyword search:

[0004] The Chinese utility model patent with publication (announcement) number: CN210289733U discloses a foaming agent filling device, which includes: a storage mechanism, a delivery mechanism and a main control mechanism. The delivery turntable can rotate around the first rotation axis, and the turntable groove can be connected to the first through hole or the second through hole respectively during the rotation. The first end of the storage mechanism is fixedly connected to the first end of the delivery body, and the inner cavity of the storage mechanism is connected to the first through hole, and the inner cavity of the storage mechanism is used to store the foaming agent. Through the foaming agent filling device, the situation of a sharp drop in gas production can be well avoided, and the recovery rate of the gas well can be increased. Utility Model Content

[0005] In order to solve the problem of continuous injection of foaming agent in the late stage of natural gas well exploitation, the present application provides a mobile foaming agent filling device, which delivers the foaming agent to the on-site liquid storage tank by pressure difference liquid supply or water pump liquid supply, so as to replace the manual climbing and filling by on-site workers, thereby avoiding the problems of falling and tipping that may occur during climbing and filling, and at the same time, making the filling process more time-saving, labor-saving, safe and reliable.

[0006] In order to achieve the above purpose, the technical solution adopted in this application is:

[0007] A mobile foaming agent filling device comprises a mobile platform, a medicine tank arranged on the mobile platform for temporarily storing the foaming agent, the bottom of the medicine tank is connected to a liquid supply pipe, and a fourth shut-off valve is arranged on the liquid supply pipe; the medicine tank is connected to an air supply pipe near the top, and the other end of the air supply pipe is connected to at least one gas tank for storing compressed air, a second shut-off valve is arranged between the gas tank and the medicine tank, and an inflation mechanism for connecting to an air source is arranged on the gas tank.

[0008] Preferably, the inflation mechanism comprises an inflation connector connected to a high-pressure gas source, and a second one-way valve for communicating with the gas tank is installed on the inflation connector.

[0009] Preferably, the inflation mechanism comprises an electric air pump, and the electric air pump is connected to the air tank through a first one-way valve.

[0010] Preferably, a filling funnel with a third shut-off valve is provided on the top of the medicine tank.

[0011] Further preferably, the number of the gas tanks is two, the two gas tanks are connected via a first shut-off valve, and the gas tanks are mounted on the mobile platform via a fixed bracket.

[0012] Preferably, the liquid supply pipe is also connected in parallel with a second liquid supply pipe, on which an electric water pump and a fifth shut-off valve are sequentially arranged, and the liquid supply pipe and the second liquid supply pipe share an inlet end and an outlet end.

[0013] Preferably, the outlet end of the liquid supply pipe is connected to a hose, and the free end of the hose is provided with a quick connector for connecting to an on-site liquid storage tank.

[0014] Preferably, it also includes a filling assembly connected to the top of any liquid storage tank on site, and the free end of the filling assembly is provided with a joint that is detachably and tightly connected to the quick connector.

[0015] Preferably, it also includes a battery, which is electrically connected to the electric water pump and the electric air pump through a switch assembly.

[0016] Beneficial effects:

[0017] 1. The utility model uses high-pressure air to squeeze the foaming agent into the liquid storage tank of the station. Compared with the current manual climbing and pouring, it is more time-saving, labor-saving, efficient and safe, and fundamentally solves the problem of workers falling or spilling of agents.

[0018] 2. The utility model provides three ways to supply liquid, one is high-pressure air supply, one is air pump to provide pressure difference supply, and one is on-site liquid supply using a water pump. All three ways can effectively replace the existing climbing and dumping, and can continuously supply liquid and fill it at one time without the need to climb up and down repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] Figure 2 This is a working principle diagram of the utility model using a water pump to supply liquid.

[0022] Figure 3 This is a working principle diagram of the utility model using a gas pressure liquid supply method.

[0023] In the figure: 1-mobile platform; 2-fixed bracket; 3-battery; 4-electric air pump; 5-first one-way valve; 6-gas tank; 7-second one-way valve; 8-inflating connector; 9-first shut-off valve; 10-second shut-off valve; 11-medicine tank; 12-third shut-off valve; 13-filling funnel; 14-fourth shut-off valve; 15-electric water pump; 16-fifth shut-off valve; 17-liquid supply pipe; 18-hose; 19-quick connector. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] Embodiment 1:

[0031] This embodiment will explain the filling of the foaming agent at the station site in conjunction with the drawings in the specification. Figure 1 A mobile foaming agent filling device is shown, comprising a mobile platform 1, a medicine tank 11 for temporarily storing the foaming agent arranged on the mobile platform 1, the bottom of the medicine tank 11 is connected to a liquid supply pipe 17, and a fourth shut-off valve 14 is arranged on the liquid supply pipe 17; the medicine tank 11 is connected to an air supply pipe near the top, and the other end of the air supply pipe is connected to at least one gas tank 6 for storing compressed air, a second shut-off valve 10 is arranged between the gas tank 6 and the medicine tank 11, and an inflation mechanism for connecting to an air source is arranged on the gas tank 6.

[0032] Working and structural principle:

[0033] First, it is necessary to ensure that there is enough compressed air in the gas tank 6. The compressed air is added by inflating the gas tank 6 through an inflation mechanism. The inflation mechanism can be detachably connected to the gas tank 6 or fixedly connected. It can be moved with the gas tank 6 or fixedly installed in other places in the station. As long as it can meet the needs of adding compressed air to the gas tank 6, it will be fine.

[0034] Secondly, pour the finished defoaming agent into the medicine tank 11 in advance, and seal the medicine tank 11; when the compressed air and the defoaming agent are filled, since the second shut-off valve 10 is in a closed state, the high-pressure air is stored in the gas tank 6 and the defoaming agent is stored in the medicine tank 11.

[0035] Finally, the foaming agent is added to the liquid storage tank at the site, and the end of the liquid supply pipe 17 is placed in the liquid storage tank through a pipeline or a filling assembly or directly, and then the fourth shut-off valve 14 is opened to connect the medicine tank 11 with the liquid storage tank, and then the second shut-off valve 19 is slowly opened to allow compressed air to slowly enter the medicine tank 11. The internal pressure of the medicine tank 11 gradually increases, and the foaming agent is gradually pressed into the liquid storage tank through the liquid supply pipe 17, thereby completing the filling of the foaming agent. Figure 3 The advantages of using differential pressure injection in the structure shown are:

[0036] 1. The filling process is continuous without interruption and the filling speed is fast. When the gas fills the entire medicine tank 11, the filling is completed.

[0037] 2. The air pressure filling process can be paused at any time, which is convenient for operation. After the filling of the foaming agent in the medicine tank 11 is completed, if a second filling is required, the second shut-off valve 10 can be closed to continue adding new foaming agent, and then the above filling action can be repeated to continue filling. The whole process only needs to control different valves, and there is no energy consumption throughout the process.

[0038] 3. Another advantage of air pressure filling is that it can drain the residual foaming agent in the pipeline, can use the huge difference in density between air and agent to achieve gas-liquid separation, and can press all the liquid from the bottom of the agent tank 11 into the liquid storage tank.

[0039] Embodiment 2:

[0040] This embodiment refines the inflation mechanism on the basis of the embodiment 1. Specifically, see Figure 1 As shown, the inflation mechanism includes an inflation connector 8 connected to a high-pressure gas source, and a second one-way valve 7 for connecting to the gas tank 6 is installed on the inflation connector 8. Figure 1 As shown, the volume that this mode is suitable for gas tank 6 is large, can be enough to satisfy the amount of single foaming agent filling. Each time between filling, high pressure gas source, such as compressed air of the air compressor of station field etc. is filled into and stored in the gas tank 6 by inflation joint 8.

[0041] Embodiment 3:

[0042] This embodiment refines the inflation mechanism on the basis of the embodiment 1. Figure 1 As shown, another technical solution is provided to replace the embodiment 2. Specifically, the inflation mechanism includes an electric air pump 4, and the electric air pump 4 is connected to the gas tank 6 through a first one-way valve 5. The solution of this embodiment is suitable for the case where the single filling amount is large, or the single capacity of the gas tank 6 is insufficient to meet the single foaming agent filling demand. Since the electric air pump 4 can be continuously inflated through an on-site external power supply or a storage power supply, the foaming agent can be continuously filled after the compressed air in the gas tank 6 is exhausted; as long as the electric air pump 4 is turned on, high-pressure air can be continuously filled to squeeze the foaming agent into the liquid storage tank to complete the filling.

[0043] Embodiment 4:

[0044] This embodiment optimizes other structures on the basis of any of the above embodiments. Specifically, in order to facilitate the filling of the foaming agent, a filling funnel 13 with a third shut-off valve 12 is provided on the top of the medicine tank 11. When filling is required, the second shut-off valve 10 and the fourth shut-off valve 14 need to be closed, the third shut-off valve 12 needs to be opened, and the foaming agent is poured into the filling funnel 13. After the filling is completed, the third shut-off valve 12 needs to be closed, and the fourth shut-off valve 14 and the second shut-off valve 10 are opened respectively, so that compressed air enters the medicine tank 11 to fill the foaming agent.

[0045] In this embodiment, there are two gas tanks 6 , which are connected via a first shut-off valve 9 , and the gas tanks 6 are mounted on the mobile platform 1 via a fixed bracket 2 . Figure 1 One of the connection methods is shown. As another connection method, the inflation mechanisms described in Example 2 and Example 3 can be installed on the same gas tank 6 or on a pipeline connected to any gas tank 6. As long as the actual principle of inflating the gas tank 6 remains unchanged, technical personnel in this field can flexibly arrange the location of the installation of the inflation mechanism according to the actual space conditions.

[0046] Embodiment 5:

[0047] See also Figure 1 and Figure 2As shown, the liquid supply pipe 17 is also connected in parallel with a second liquid supply pipe, on which an electric water pump 15 and a fifth shut-off valve 16 are sequentially arranged, and the liquid supply pipe and the second liquid supply pipe share an inlet end and an outlet end. This embodiment provides another filling method, and the foaming agent can also be continuously filled even in the absence of compressed air. Specifically, by closing the fourth shut-off valve 14, opening the third shut-off valve 12 and the fifth shut-off valve 16, and opening the electric water pump 15, the foaming agent in the medicine tank 11 is directly extracted and pumped into the liquid storage tank. In this process, workers do not need to climb, and the foaming agent can be quickly, continuously and stably filled. The amount of filling is not limited in theory. During the filling process, new foaming agent can be continuously replenished from the third shut-off valve 12 without stopping the machine until the filling is completed.

[0048] As a further improvement, the following improvements are suitable for any of the above embodiments, specifically including: the outlet end of the liquid supply pipe 17 is connected to a hose 18, and the free end of the hose 18 is provided with a quick connector 19 for connecting to an on-site liquid storage tank. It also includes a filling assembly connected to the top of any on-site liquid storage tank, and the free end of the filling assembly is provided with a connector that is detachably and tightly connected to the quick connector 19. It also includes a battery 3, and the battery 3 is electrically connected to the electric water pump 15 and the electric air pump 4 through a switch assembly.

[0049] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mobile foaming agent filling device, characterized in that: The invention comprises a mobile platform (1), a medicine tank (11) for temporarily storing a foaming agent and arranged on the mobile platform (1), wherein the bottom of the medicine tank (11) is connected to a liquid supply pipe (17), and a fourth shut-off valve (14) is arranged on the liquid supply pipe (17); the medicine tank (11) is connected to an air supply pipe near the top, and the other end of the air supply pipe is connected to at least one gas tank (6) for storing compressed air, a second shut-off valve (10) is arranged between the gas tank (6) and the medicine tank (11), and an inflation mechanism for connecting to an air source is arranged on the gas tank (6).

2. A mobile foaming agent filling device according to claim 1, characterized in that: The inflation mechanism comprises an inflation joint (8) connected to a high-pressure gas source, and a second one-way valve (7) for communicating with the gas tank (6) is installed on the inflation joint (8).

3. The mobile foaming agent filling device according to claim 1, characterized in that: The inflation mechanism comprises an electric air pump (4), and the electric air pump (4) is connected to the air tank (6) via a first one-way valve (5).

4. The mobile foaming agent filling device according to claim 1, characterized in that: A filling funnel (13) with a third shut-off valve (12) is arranged on the top of the medicine tank (11).

5. A mobile foaming agent filling device according to any one of claims 1 to 4, characterized in that: There are two gas tanks (6), the two gas tanks (6) are connected via a first shut-off valve (9), and the gas tanks (6) are mounted on the mobile platform (1) via a fixed bracket (2).

6. A mobile foaming agent filling device according to any one of claims 1 to 4, characterized in that: The liquid supply pipe (17) is also connected in parallel with a second liquid supply pipe, on which an electric water pump (15) and a fifth shut-off valve (16) are sequentially arranged, and the liquid supply pipe and the second liquid supply pipe share an inlet end and an outlet end.

7. A mobile foaming agent filling device according to claim 6, characterized in that: The outlet end of the liquid supply pipe (17) is connected to a hose (18), and the free end of the hose (18) is provided with a quick connector (19) for connecting to an on-site liquid storage tank.

8. The mobile foaming agent filling device according to claim 7, characterized in that: It also comprises a filling assembly connected to the top of any liquid storage tank on site, wherein the free end of the filling assembly is provided with a joint which is detachably and tightly connected to the quick joint (19).

9. The mobile foaming agent filling device according to claim 6, characterized in that: It also includes a storage battery (3), which is electrically connected to the electric water pump (15) and the electric air pump (4) through a switch assembly.

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