Ammonia water pump inlet filter cleaning device

Abstract

The utility model relates to the technical field of filtering and cleaning of chemical equipment, in particular to an ammonia water pump inlet filter cleaning device which comprises an ammonia water pump body, an inlet pipe is installed at the water inlet end of the ammonia water pump body, the water outlet end of the ammonia water pump body is communicated with an outlet pipe, and a filter is installed on the inlet pipe. The inlet pipe is communicated with a desalted water pipe, the outlet pipe is communicated with a return pipe, a circulating pipe is communicated between the desalted water pipe and the return pipe, a circulating pump is arranged in the middle of the circulating pipe, a liquid storage tank is arranged on one side of the circulating pump, and the liquid storage tank is communicated with the circulating pipe through a liquid conveying pipe. Desalted water circulating flushing is adopted to replace traditional direct liquid discharging, residual ammonia water in the filter and the ammonia water pump body is removed, the poisoning risk caused by volatilization of high-concentration ammonia water is reduced, the situation that GDS alarm is triggered and desalted water circulating flow washes impurities and crystals attached to the surface of a filter screen of the filter is reduced, the service life of the filter is prolonged, and the service life of the filter is prolonged. And the use and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of filtration and cleaning technology for chemical equipment, and in particular to a cleaning device for an ammonia pump inlet filter. Background Technology

[0002] In chemical production, ammonia pumps are key equipment in stripping units. Their inlet filters need to be cleaned regularly to ensure stable system operation. The existing cleaning process involves cutting off the inlet and outlet valves of the ammonia pump and then directly opening the pump inlet drain to release pressure and discharge liquid.

[0003] Direct discharge of high-concentration ammonia water leads to a large amount of ammonia gas volatilization. Operators need to wear filter-type gas masks to operate, but there is still a risk of poisoning and chemical burns. The discharge process is prone to triggering GDS alarms and interfering with normal monitoring functions. Relying solely on drainage cannot effectively remove impurities and ammonia crystals attached to the filter surface, leading to accelerated filter clogging and affecting subsequent filtration effects. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an ammonia pump inlet filter cleaning device. It uses demineralized water circulation flushing to replace traditional direct drainage, which removes residual ammonia water from the filter and the ammonia pump body, reduces the risk of poisoning caused by the volatilization of high-concentration ammonia water, and reduces the triggering of GDS alarms. The demineralized water circulation flow washes away impurities and crystals attached to the filter screen surface, extending the service life of the filter and reducing the cost of use and production.

[0005] To solve the above technical problems, this utility model provides the following technical solution: an ammonia pump inlet filter cleaning device, including an ammonia pump body, an inlet pipe installed at the inlet end of the ammonia pump body, an outlet pipe connected to the outlet end of the ammonia pump body, a filter installed on the inlet pipe, a demineralized water pipe connected to the inlet pipe, a return pipe connected to the outlet pipe, a circulation pipe connected between the demineralized water pipe and the return pipe, a circulation pump provided in the middle of the circulation pipe, a liquid storage tank provided on one side of the circulation pump, and the liquid storage tank connected to the circulation pipe through a delivery pipe;

[0006] An interception assembly is installed on the circulation pipe. The interception assembly includes an interception frame. The input end of the interception frame is connected to the circulation pipe. A filter box is inserted into the top surface of the interception frame. The input end of the interception frame is connected to a filter barrel. The input end of the filter barrel is connected to the circulation pipe.

[0007] Preferably, the height of the inner bottom surface of the inlet pipe is lower than the height of the bottom surface of the cavity of the ammonia pump body, and the lower end of the inlet pipe is connected to a drain pipe.

[0008] Through the above technical solution, the drain pipe ensures the discharge of residual liquid, further reducing the risk of ammonia leakage.

[0009] Preferably, a one-way valve is installed on the infusion tube, and an electric valve is installed on the other end of the infusion tube and the inlet tube, the desalination tube and the drain tube, respectively.

[0010] Through the above technical solution, the one-way valve reduces the impact of circulating flushing fluid on the storage tank, ensuring the purity of the demineralized water in the storage tank.

[0011] Preferably, a C-shaped block is fixed on the top surface of the filter box, and two elastic clips are fixed at the lower end of the C-shaped block, with the top surface of the elastic clips engaging with the lower outer wall of the interception frame.

[0012] The above technical solution enables rapid fixing of the filter box, shortening maintenance time.

[0013] Preferably, the water inlet end of the filter box is provided with a boss, and the inner wall of the C-shaped block abuts against the upper outer wall of the interception frame.

[0014] The above technical solution reduces the risk of internal adsorption materials and impurities falling out when the filter box is removed, thus improving operational safety.

[0015] Preferably, the filter barrel has an installation groove inside, and a stainless steel sintered filter element is installed inside the installation groove. The lower end of the filter barrel is connected to a wastewater pipe with a valve.

[0016] Through the above technical solutions, the waste liquid can be discharged in a directional manner or recycled through wastewater pipes.

[0017] Preferably, the filter barrels are provided in two symmetrical structures, the two filter barrels are rotatably connected, and the end faces of the two filter barrels are sealed together by a sealing strip.

[0018] The above technical solutions improve the sealing effect and reduce the risk of flushing fluid leakage.

[0019] Preferably, a connecting block is fixed at one edge of the filter barrel, and two connecting blocks are fixedly connected by fasteners.

[0020] With the above technical solution, during maintenance, loosen the fasteners, rotate to separate the filter barrel, and directly replace the stainless steel sintered filter element.

[0021] The beneficial effects of this utility model are:

[0022] 1. The demineralized water in the storage tank enters the circulation pipe through the infusion pipe. After being pressurized by the circulation pump, it forms a circulating flow for cleaning. The use of demineralized water circulation flushing replaces the traditional direct discharge, removing residual ammonia water from the filter and ammonia pump body, reducing the risk of poisoning caused by the volatilization of high-concentration ammonia water. There is no high-concentration ammonia water discharge during the flushing process, reducing the triggering of GDS alarms and ensuring the continuity of production. The demineralized water circulation flows through the filter and ammonia pump body, washing away impurities and crystals attached to the filter screen surface, extending the service life of the filter, and reducing the cost of use and production.

[0023] 2. After rinsing, close the demineralized water pipe and the circulation pump, and open the drain pipe. Because the bottom of the inlet pipe is lower than the bottom of the ammonia pump body cavity, the residual liquid is discharged by gravity through the drain pipe, and the impurities cleaned during the filter rinsing are discharged to the outside. The design of the bottom of the inlet pipe being lower than the pump body cavity, together with the drain pipe, enables gravity-based pressureless discharge, ensuring the discharge of residual liquid and further reducing the risk of ammonia leakage.

[0024] 3. The filter box is filled with adsorbent material or fine filter element. The filter box is connected to the interception frame by C-shaped blocks, and the elastic clip is connected to the lower outer wall of the interception frame, which realizes quick fixation of the filter box and shortens maintenance time. With the protrusion design, the risk of adsorbent material and impurities falling out when the filter box is removed is reduced, and the operation safety is improved.

[0025] 4. During maintenance, loosen the fasteners, rotate to separate the filter bucket, and directly replace the stainless steel sintered filter element without disassembling the entire interception assembly. The dual filtration of the stainless steel sintered filter element in the filter box and filter bucket improves the filtration effect and efficiency. Waste liquid is discharged or recycled through the wastewater pipe, reducing the risk of flushing liquid leakage and reducing environmental pollution. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a rear perspective view of the liquid storage tank structure of this utility model;

[0028] Figure 3 This is a bottom perspective view of the interception component structure of this utility model;

[0029] Figure 4 This is a left perspective view of the interception frame structure of this utility model;

[0030] Figure 5 This is a schematic diagram of the stainless steel sintered filter element structure of this utility model.

[0031] In the diagram: 100, ammonia pump body; 200, inlet pipe; 201, desalinated water pipe; 202, drain pipe; 300, outlet pipe; 301, return pipe; 400, filter; 500, circulation pipe; 501, circulation pump; 502, storage tank; 503, infusion pipe; 504, one-way valve; 600, interception assembly; 601, interception frame; 602, filter box; 603, filter barrel; 604, flexible clamp; 605, boss; 606, mounting groove; 607, stainless steel sintered filter element; 608, wastewater pipe; 609, connecting block; 610, fastener; 611, C-block. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Example 1

[0034] like Figure 1-4 As shown, this embodiment provides an ammonia pump inlet filter cleaning device, including an ammonia pump body 100, an inlet pipe 200 installed at the inlet end of the ammonia pump body 100, an outlet pipe 300 connected to the outlet end of the ammonia pump body 100, a filter 400 installed on the inlet pipe 200, a demineralized water pipe 201 connected to the inlet pipe 200, a return pipe 301 connected to the outlet pipe 301, a circulation pipe 500 connected between the demineralized water pipe 201 and the return pipe 301, a circulation pump 501 provided in the middle of the circulation pipe 500, a liquid storage tank 502 provided on one side of the circulation pump 501, and the liquid storage tank 502 connected to the circulation pipe 500 through a delivery pipe 503;

[0035] An interception component 600 is installed on the circulation pipe 500. The interception component 600 includes an interception frame 601. The input end of the interception frame 601 is connected to the circulation pipe 500. A filter box 602 is inserted into the top surface of the interception frame 601. A filter barrel 603 is connected to the input end of the interception frame 601. The input end of the filter barrel 603 is connected to the circulation pipe 500.

[0036] The height of the inner bottom surface of the inlet pipe 200 is lower than the height of the cavity bottom surface of the ammonia pump body 100. The lower end of the inlet pipe 200 is connected to the drain pipe 202; the drain pipe 202 ensures the discharge of residual liquid and further reduces the risk of ammonia leakage.

[0037] A one-way valve 504 is installed on the infusion tube 503. Electric valves are installed on the other end of the infusion tube 503, the inlet tube 200, the demineralized water tube 201, and the drain tube 202, respectively. The one-way valve 504 reduces the impact of the circulating flushing fluid on the storage tank 502 and ensures the purity of the demineralized water in the storage tank 502.

[0038] Working principle: After the ammonia pump body 100 is cut off, the inlet pipe 200 and outlet pipe 300 are closed. Then, the demineralized water pipe 201 and return pipe 301 are opened and the circulation pump 501 is started. The demineralized water in the storage tank 502 enters the circulation pipe 500 through the delivery pipe 503. After being pressurized by the circulation pump 501, a circulating flow is formed. The circulation pipe 500 sequentially passes through the inlet pipe 200, filter 400, ammonia pump body 100 cavity, outlet pipe 300, and return pipe 301 back to the circulation pipe 500. The circulating flow is used for cleaning. During the cleaning process, the interception component 600 intercepts impurities in the returned demineralized water, further filtering out fine impurities.

[0039] The use of demineralized water circulation flushing instead of traditional direct drainage removes residual ammonia from the filter 400 and ammonia pump body 100, reducing the risk of poisoning caused by the volatilization of high-concentration ammonia. The flushing process does not discharge high-concentration ammonia, reducing the triggering of GDS alarms and ensuring the continuity of production. The demineralized water circulates through the filter 400 and ammonia pump body 100, flushing away impurities and crystals attached to the surface of the filter screen of the filter 400, extending the service life of the filter 400, and reducing the cost of use and production.

[0040] After rinsing, close the demineralized water pipe 201 and the circulating pump 501, and open the drain pipe 202. Because the bottom of the inlet pipe 200 is lower than the bottom of the ammonia pump body 100, the residual liquid is discharged by gravity through the drain pipe 202, and the impurities cleaned during rinsing of the filter 400 are discharged to the outside. The design of the bottom of the inlet pipe 200 being lower than the pump body cavity, together with the drain pipe 202, enables gravity-based pressureless discharge, ensuring the discharge of residual liquid and further reducing the risk of ammonia leakage.

[0041] Example 2

[0042] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, based on Embodiment 1, a C-shaped block 611 is fixed on the top surface of the filter box 602, and two elastic clips 604 are fixed on the lower end of the C-shaped block 611. The top surface of the elastic clips 604 is engaged with the lower outer wall of the interception frame 601; thus, the filter box 602 is quickly fixed, shortening the maintenance time.

[0043] The filter box 602 has a protrusion 605 at the water inlet end, and the inner wall of the C-shaped block 611 abuts against the upper outer wall of the interception frame 601; this reduces the risk of internal adsorption material and impurities falling out when the filter box 602 is removed, and improves operational safety.

[0044] The filter barrel 603 has an installation groove 606 inside, and a stainless steel sintered filter element 607 is installed inside the installation groove 606. The lower end of the filter barrel 603 is connected to a wastewater pipe 608 with a valve; the waste liquid is discharged in a directional manner or recycled through the wastewater pipe 608.

[0045] Two filter barrels 603 are provided in a symmetrical structure. The two filter barrels 603 are rotatably connected, and the end faces of the two filter barrels 603 are sealed together by a sealing strip; this improves the sealing effect and reduces the risk of flushing fluid leakage.

[0046] A connecting block 609 is fixedly installed on one side edge of the filter barrel 603, and the two connecting blocks 609 are fixedly connected by fasteners 610. During maintenance, the fasteners 610 are loosened, the filter barrel 603 is rotated to separate it, and the stainless steel sintered filter element 607 is directly replaced.

[0047] In use, the filter box 602 is filled with adsorbent material or a fine filter element. The filter box 602 is then snapped into the interception frame 601 by the C-shaped block 611, and the elastic clip 604 is snapped into the lower outer wall of the interception frame 601, which achieves quick fixation of the filter box 602 and shortens maintenance time. The design of the boss 605 reduces the risk of adsorbent material and impurities falling out when the filter box 602 is removed, thus improving operational safety.

[0048] During maintenance, loosen fastener 610, rotate the separation filter barrel 603, and directly replace the stainless steel sintered filter element 607 without disassembling the entire interception assembly 600. The dual filtration of the stainless steel sintered filter element 607 in the filter box 602 and filter barrel 603 improves the filtration effect and efficiency. Waste liquid is discharged or recycled through the wastewater pipe 608, reducing the risk of flushing liquid leakage and reducing environmental pollution.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ammonia pump inlet filter cleaning device, comprising an ammonia pump body (100), wherein an inlet pipe (200) is installed at the inlet end of the ammonia pump body (100), an outlet pipe (300) is connected to the outlet end of the ammonia pump body (100), and a filter (400) is installed on the inlet pipe (200), characterized in that: The inlet pipe (200) is communicated with a desalted water pipe (201), the outlet pipe (300) is communicated with a backflow pipe (301), the desalted water pipe (201) and the backflow pipe (301) are communicated with a circulating pipe (500), the middle part of the circulating pipe (500) is provided with a circulating pump (501), one side of the circulating pump (501) is provided with a liquid storage tank (502), the liquid storage tank (502) is communicated with the circulating pipe (500) through a liquid delivery pipe (503); The circulating pipe (500) is provided with an intercepting assembly (600), the intercepting assembly (600) comprises an intercepting frame (601), the input end of the intercepting frame (601) is communicated with the circulating pipe (500), the top surface of the intercepting frame (601) is inserted with a filter box (602), the input end of the intercepting frame (601) is communicated with a filter barrel (603), the input end of the filter barrel (603) is communicated with the circulating pipe (500).

2. An aqueous ammonia pump inlet filter cleaning apparatus as claimed in claim 1, wherein: The inner bottom surface of the inlet pipe (200) is lower than the cavity bottom surface of the ammonia water pump body (100), and the lower end of the inlet pipe (200) is communicated with a guide pipe (202).

3. An aqueous ammonia pump inlet filter cleaning apparatus as claimed in claim 2, wherein: A one-way valve (504) is installed on the liquid delivery pipe (503), and an electric valve is installed on the other end of the liquid delivery pipe (503), the inlet pipe (200), the desalted water pipe (201) and the guide pipe (202) respectively.

4. The aqueous ammonia pump inlet filter cleaning apparatus of claim 1, wherein: A C-shaped block (611) is fixedly arranged on the top surface of the filter box (602), two elastic clamping heads (604) are fixedly arranged on the lower end of the C-shaped block (611), and the top surface of the elastic clamping head (604) is clamped with the lower end of the intercepting frame (601).

5. An aqueous ammonia pump inlet filter cleaning apparatus as claimed in claim 4, wherein: The water inlet end of the filter box (602) is provided with a boss (605), and the inner wall of the C-shaped block (611) abuts against the outer wall of the upper end of the intercepting frame (601).

6. An aqueous ammonia pump inlet filter cleaning apparatus as claimed in claim 5, wherein: A mounting groove (606) is arranged in the filter barrel (603), a stainless steel sintered filter element (607) is arranged in the mounting groove (606), and a valve-equipped wastewater pipe (608) is communicated with the lower end of the filter barrel (603).

7. An aqueous ammonia pump inlet filter cleaning apparatus as claimed in claim 6, wherein: The filter barrel (603) is symmetrically provided with two filter barrels (603), the two filter barrels (603) are rotationally connected, and the end surfaces of the two filter barrels (603) are sealingly connected through a sealing strip.

8. An aqueous ammonia pump inlet filter cleaning apparatus as claimed in claim 7, wherein: A connecting block (609) is fixedly arranged at the side edge of the filter barrel (603), and the two connecting blocks (609) are fixedly connected through a fastener (610).

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