Liquid seal pump line structure

Abstract

This application discloses a liquid-sealed pump pipeline structure, comprising a liquid supply component, a connecting component, and a monitoring component. The liquid supply component includes a hydraulic pump, a first check valve, and a liquid supply pipe. The hydraulic pump is connected to one end of the liquid supply pipe, and the first check valve is installed in the liquid supply pipe. The connecting component includes a second check valve and a connecting pipe. One end of the connecting pipe is connected to the end of the liquid supply pipe away from the hydraulic pump, and the other end is connected to an autoclave. The monitoring component includes a controller and a first hydraulic gauge. The first hydraulic gauge is located between the second check valve and the liquid supply pipe. The first hydraulic gauge is used to detect the hydraulic pressure in the connecting pipe. The controller is electrically connected to both the hydraulic pump and the first hydraulic gauge to control the hydraulic pump to supply liquid to the liquid supply pipe when the pressure in the connecting pipe is lower than a threshold. This design allows for accurate initiation of the hydraulic pump to supply liquid, avoiding the technical problem of frequent erroneous starts of the hydraulic pump that shorten its service life.

Description

Technical Field

[0001] This application relates to the field of liquid-sealed pipelines, specifically to a liquid-sealed pump pipeline structure. Background Technology

[0002] High-pressure reactors are used in the hydrometallurgical process of laterite nickel ore, and these reactors require liquid sealing during operation. The existing liquid sealing pump pipeline structure can be found in patent application number CN201220586399.2, which uses a hydraulic gauge to detect the pressure within the liquid sealing pipeline. When the pressure in the liquid sealing pipeline falls below a threshold, a hydraulic pump can be used to replenish the pressure.

[0003] However, after the hydraulic pump has been used for a long time, its sealing performance will deteriorate, and pressure drop will occur on the branch line where the hydraulic pump is located. However, due to the presence of a check valve on the main line, there is no significant pressure drop. Therefore, there will be a situation where the pressure on the main line can meet the sealing requirements, but the hydraulic pump will frequently start incorrectly to replenish pressure due to pressure drop in the branch line.

[0004] Therefore, how to avoid frequent and erroneous starts of the hydraulic pump is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a liquid seal pump pipeline structure to solve the technical problem of how to avoid frequent erroneous startup of hydraulic pumps in the prior art.

[0006] To achieve the above-mentioned technical objectives, this application adopts the following technical solution:

[0007] This application provides a liquid seal pump pipeline structure, which includes:

[0008] A liquid supply assembly includes a hydraulic pump, a first check valve, and a liquid supply pipe, wherein the hydraulic pump is connected to one end of the liquid supply pipe, and the first check valve is installed in the liquid supply pipe.

[0009] A connecting assembly, comprising a second check valve and a connecting pipe, one end of which is connected to the end of the supply pipe away from the hydraulic pump, and the other end of which is connected to the autoclave; and

[0010] The monitoring component includes a controller and a first hydraulic gauge located between the second check valve and the supply pipe. The first hydraulic gauge is used to detect the hydraulic pressure in the connecting pipe. The controller is electrically connected to the hydraulic pump and the first hydraulic gauge respectively, so as to control the hydraulic pump to supply liquid to the supply pipe after the pressure in the connecting pipe is lower than a threshold.

[0011] In some embodiments, the liquid seal pump pipeline structure has two sets of the liquid supply components, and both of the liquid supply pipes are connected to the connecting pipe.

[0012] In some embodiments, the first check valve is installed at one end of the supply pipe near the connecting pipe.

[0013] In some embodiments, the communication assembly further includes a three-way valve, which is connected to the communication pipe and the two supply pipes respectively.

[0014] In some embodiments, the communication assembly further includes a third check valve, which is installed in the communication pipe and located between the second check valve and the autoclave.

[0015] In some embodiments, the monitoring component further includes a second hydraulic gauge installed between the third check valve and the autoclave, which is used to detect the pressure in the connecting pipe.

[0016] In some embodiments, the first hydraulic gauge is an electronic hydraulic gauge.

[0017] In some embodiments, the second hydraulic gauge is a mechanical hydraulic gauge.

[0018] In some embodiments, the liquid supply pipe is a stainless steel liquid supply pipe.

[0019] In some embodiments, the connecting pipe is a stainless steel connecting pipe.

[0020] First, a first hydraulic gauge is used to detect the pressure inside the connecting pipe. When the pressure inside the connecting pipe falls below a threshold, the controller activates the hydraulic pump to supply fluid to the supply pipe, thereby increasing the pressure inside the connecting pipe. This ensures that the pressure inside the connecting pipe meets the sealing requirements. Because the first hydraulic gauge is located between the first and second check valves, pressure leakage caused by a decrease in the hydraulic pump's sealing performance will not affect the readings of the first hydraulic gauge. This avoids the technical problem of frequent erroneous starts of the hydraulic pump, which would shorten its service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the liquid seal pump pipeline structure provided in the embodiments of this application;

[0022] Explanation of reference numerals in the attached drawings: Liquid supply assembly 100, hydraulic pump 110, first check valve 120, liquid supply pipe 130, connecting assembly 200, second check valve 210, connecting pipe 220, three-way valve 230, third check valve 240, monitoring assembly 300, first hydraulic gauge 320, second hydraulic gauge 330. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] To address the technical problem of avoiding frequent erroneous starts of the hydraulic pump 110, this application provides a liquid seal pump pipeline structure. The first hydraulic gauge 320 in the above-mentioned liquid seal pump pipeline structure can accurately measure the pressure inside the connecting pipe 220, thereby accurately starting the hydraulic pump 110 to supply fluid and avoiding the technical problem of frequent erroneous starts of the hydraulic pump 110 that would shorten its service life.

[0025] It should be noted that the liquid seal pump pipeline structure of this application is used in, but not limited to, high pressure vessels. For ease of explanation, this application only uses the application of the liquid seal pump pipeline structure in a high pressure vessel as an example. The principle of the liquid seal pump pipeline structure applied to other types of equipment is essentially the same as that applied to a high pressure vessel, and will not be elaborated here.

[0026] This application provides a liquid-sealed pump pipeline structure, which includes a liquid supply assembly 100, a connecting assembly 200, and a monitoring assembly 300. The liquid supply assembly 100 includes a hydraulic pump 110, a first check valve 120, and a liquid supply pipe 130. The hydraulic pump 110 is connected to one end of the liquid supply pipe 130, and the first check valve 120 is installed in the liquid supply pipe 130. The connecting assembly 200 includes a second check valve 210 and a connecting pipe 220. One end of the connecting pipe 220 is connected to the end of the liquid supply pipe 130 away from the hydraulic pump 110, and the other end is connected to a high-pressure reactor. The monitoring component 300 includes a controller (not shown) and a first hydraulic gauge 320. The first hydraulic gauge 320 is located between the second check valve 210 and the supply pipe 130. The first hydraulic gauge 320 is used to detect the hydraulic pressure in the connecting pipe 220. The controller (not shown) is electrically connected to the hydraulic pump 110 and the first hydraulic gauge 320 respectively, so as to control the hydraulic pump 110 to supply liquid to the supply pipe 130 after the pressure in the connecting pipe 220 is lower than the threshold.

[0027] In this embodiment, the first hydraulic gauge 320 is first used to detect the pressure inside the connecting pipe 220. When the pressure inside the connecting pipe 220 is lower than a threshold, the controller (not shown in the figure) controls the hydraulic pump 110 to supply fluid to the supply pipe 130, thereby increasing the pressure inside the connecting pipe 220. This ensures that the pressure inside the connecting pipe 220 meets the sealing requirements. Since the first hydraulic gauge 320 is located between the first check valve 120 and the second check valve 210, the pressure leakage caused by the decreased sealing performance of the hydraulic pump 110 will not affect the detection result of the first hydraulic gauge 320, thus avoiding the technical problem of frequent erroneous starts of the hydraulic pump 110 and reduced service life.

[0028] It is important to emphasize that when the pressure inside the connecting pipe 220 falls below a threshold, the controller (not shown in the figure) operates the hydraulic pump 110 to supply fluid to the supply pipe 130. The controller (not shown in the figure) uses only simple logic control and does not involve complex rule algorithms. Furthermore, controllers with simple logic control (not shown in the figure) are commonly used in existing liquid-sealed pump pipeline structures. Therefore, the use of the controller (not shown in the figure) in this application still complies with the relevant provisions of the Patent Law regarding the subject matter of the application.

[0029] See also Figure 1 The hydraulic pump 110 and the first check valve 120 are in the same dashed box, which means that the first check valve 120 is directly installed on the pump body of the hydraulic pump 110. The first check valve 120 and the outlet of the hydraulic pump 110 are connected, so that the hydraulic pump 110 and the first check valve 120 are a whole used together. The first check valve 120 can also be understood as a component of the pump body of the hydraulic pump 110.

[0030] In some embodiments, the liquid seal pump pipeline structure has two sets of liquid supply components 100, and both liquid supply pipes 130 are connected to the connecting pipe 220.

[0031] In this embodiment, the simultaneous use of two sets of liquid supply components 100 is a redundant design. When one set of liquid supply components 100 fails to work properly, the other set of liquid supply components 100 can still meet the pressure replenishment requirements. In addition, the two sets of liquid supply components 100 can work alternately, which can avoid the shortened service life of a single liquid supply component 100 due to frequent starts.

[0032] In some embodiments, a first check valve 120 is installed at one end of the supply pipe 130 near the connecting pipe 220.

[0033] In this embodiment, since the first one-way valve 120 is installed at the end of the liquid supply pipe 130 near the connecting pipe 220, it can effectively prevent the liquid flow in the connecting pipe 220 from flowing back to the liquid supply pipe 130.

[0034] In some embodiments, the communication assembly 200 further includes a three-way valve 230, which is connected to the communication pipe 220 and two liquid supply pipes 130 respectively.

[0035] In this embodiment, a three-way valve 230 is used to connect a connecting pipe 220 and two liquid supply pipes 130, so that the connecting pipe 220 and the two liquid supply pipes 130 are interconnected.

[0036] In some embodiments, the connecting assembly 200 further includes a third check valve 240, which is installed in the connecting pipe 220 and is located between the second check valve 210 and the autoclave.

[0037] In this embodiment, since the third check valve 240 is located between the second check valve 210 and the autoclave, the combined action of the second check valve 210 and the third check valve 240 can prevent the autoclave sealing liquid from flowing back into the connecting pipe 220.

[0038] In some embodiments, the monitoring component 300 further includes a second hydraulic gauge 330, which is installed between the third check valve 240 and the autoclave, and is used to detect the pressure in the connecting pipe 220.

[0039] In this embodiment, the second hydraulic gauge 330 is installed between the third check valve 240 and the autoclave, and is used to detect the pressure in the connecting pipe 220. The second hydraulic gauge 330 can calibrate the first hydraulic gauge 320, and can be used to determine whether the first hydraulic gauge 320 is faulty. If there is a difference between the readings of the first hydraulic gauge 320 and the second hydraulic gauge 330 during the hydraulic pump 110's fluid supply process, it indicates that the first hydraulic gauge 320 is faulty.

[0040] In some embodiments, the first hydraulic gauge 320 is an electronic hydraulic gauge.

[0041] In this embodiment, since the first hydraulic gauge 320 and the controller (not shown in the figure) are electrically connected to each other, the electronic hydraulic gauge can feed back electrical signals to the controller (not shown in the figure).

[0042] In some embodiments, the second hydraulic gauge 330 is a mechanical hydraulic gauge.

[0043] In this embodiment, the mechanical hydraulic gauge is more reliable, so the more reliable mechanical hydraulic gauge can be used to calibrate the less reliable electronic hydraulic gauge.

[0044] In some embodiments, the liquid supply pipe 130 is a stainless steel liquid supply pipe 130.

[0045] In this embodiment, since the liquid supply pipe 130 is a stainless steel liquid supply pipe 130, the liquid supply pipe 130 has better corrosion resistance.

[0046] In some embodiments, the connecting pipe 220 is a stainless steel connecting pipe 220.

[0047] In this embodiment, since the connecting pipe 220 is a stainless steel connecting pipe 220, the liquid supply pipe 130 has better corrosion resistance.

[0048] To better understand this application, the following is combined with... Figure 1 The technical solution of this application is described in detail below:

[0049] First, the first hydraulic gauge 320 is used to detect the pressure inside the connecting pipe 220. When the pressure inside the connecting pipe 220 is lower than the threshold, the controller (not shown in the figure) controls the hydraulic pump 110 to supply fluid to the supply pipe 130, thereby increasing the pressure inside the connecting pipe 220 so that the pressure inside the connecting pipe 220 can meet the sealing requirements. The use of two sets of fluid supply components 100 is a redundant design; if one set of fluid supply components 100 fails to work properly, the other set can still meet the pressure replenishment requirements. Furthermore, the two sets of fluid supply components 100 can work alternately, avoiding frequent starts of a single fluid supply component 100 and shortening its service life. Since the first hydraulic gauge 320 is located between the first check valve 120 and the second check valve 210, the pressure leakage caused by a decrease in the sealing performance of the hydraulic pump 110 will not affect the detection result of the first hydraulic gauge 320. The second hydraulic gauge 330 is installed between the third check valve 240 and the autoclave, and it is used to detect the pressure inside the connecting pipe 220. The second hydraulic gauge 330 can calibrate the first hydraulic gauge 320 and can be used to determine whether the first hydraulic gauge 320 is faulty. In the aforementioned liquid-sealed pump pipeline structure, the first hydraulic gauge 320 can accurately measure the pressure inside the connecting pipe 220, thereby accurately starting the hydraulic pump 110 to supply fluid and avoiding the technical problem of frequent erroneous starts of the hydraulic pump 110, which reduces its service life.

[0050] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.

Claims

1. A liquid-sealed pump pipeline structure, characterized in that, include: A liquid supply assembly includes a hydraulic pump, a first check valve, and a liquid supply pipe, wherein the hydraulic pump is connected to one end of the liquid supply pipe, and the first check valve is installed in the liquid supply pipe. A connecting component includes a second check valve and a connecting pipe, one end of which is connected to the end of the supply pipe away from the hydraulic pump, and the other end of which is connected to the autoclave. as well as The monitoring component includes a controller and a first hydraulic gauge located between the second check valve and the supply pipe. The first hydraulic gauge is used to detect the hydraulic pressure in the connecting pipe. The controller is electrically connected to the hydraulic pump and the first hydraulic gauge respectively, so as to control the hydraulic pump to supply liquid to the supply pipe after the pressure in the connecting pipe is lower than a threshold.

2. The liquid-sealed pump pipeline structure according to claim 1, characterized in that, The liquid seal pump pipeline structure has two sets of liquid supply components, and both liquid supply pipes are connected to the connecting pipe.

3. The liquid-sealed pump pipeline structure according to claim 2, characterized in that, The first one-way valve is installed at one end of the liquid supply pipe near the connecting pipe.

4. The liquid-sealed pump pipeline structure according to claim 2, characterized in that, The communication component also includes a three-way valve, which is connected to the communication pipe and the two liquid supply pipes respectively.

5. The liquid-sealed pump pipeline structure according to claim 1, characterized in that, The connecting component further includes a third one-way valve, which is installed in the connecting pipe and is located between the second one-way valve and the autoclave.

6. The liquid-sealed pump pipeline structure according to claim 5, characterized in that, The monitoring component also includes a second hydraulic gauge, which is installed between the third check valve and the autoclave, and is used to detect the pressure in the connecting pipe.

7. The liquid-sealed pump pipeline structure according to claim 6, characterized in that, The first hydraulic gauge is an electronic hydraulic gauge.

8. The liquid-sealed pump pipeline structure according to claim 6, characterized in that, The second hydraulic gauge is a mechanical hydraulic gauge.

9. The liquid-sealed pump pipeline structure according to claim 1, characterized in that, The liquid supply pipe is a stainless steel liquid supply pipe.

10. The liquid-sealed pump pipeline structure according to claim 1, characterized in that, The connecting pipe is a stainless steel connecting pipe.

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