Double-seal chemical process pump

Abstract

The utility model discloses a double-sealed chemical process pump, which relates to the technical field of process pumps and comprises a support bottom plate. The double-sealed chemical process pump comprises a supporting bottom plate, a process pump body is installed on the upper surface of the supporting bottom plate, a first conveying pipe is arranged on the upper surface of the front end of the process pump body, a first connecting pipe is arranged on the outer surface of the first conveying pipe, and a pressure release valve is arranged at the output end of the first connecting pipe. Through the arrangement of the threaded rod, the pressure regulating spring can be pressed down in a spiral transmission mode according to the use requirement of the process pump body to regulate the pressure threshold value of the pressure release valve, so that the pressure release valve can be automatically opened when the pressure reaches a set value, redundant pressure is released, the pressure is prevented from continuously rising, and safe operation of the pump and the whole system is guaranteed; and through the arrangement of the storage tank, leaked chemical raw materials can be collected, so that environmental pollution caused by leakage of the chemical raw materials is avoided.

Description

Technical Field

[0001] This utility model relates to the field of process pump technology, specifically a double-sealed chemical process pump. Background Technology

[0002] There are many types of chemical process pumps. According to their working principle, they can be divided into vane pumps, such as centrifugal pumps, axial flow pumps, mixed flow pumps, non-split flow pumps, vortex pumps, etc. Different pump bodies can be selected for use in different working environments. When using the pump body, it is necessary to connect the external connecting pipe to the pump body to ensure the stable and efficient operation of the subsequent overall transportation work.

[0003] Existing process pumps cannot quickly position and install the external connecting pipes at the pump body input end. When a single person is installing, it is impossible to align the flange holes, thus increasing the difficulty of single-person operation during the installation process.

[0004] For example, patent application number 202121815285.6 discloses a double-sealed chemical process pump. This utility model discloses a double-sealed chemical process pump, including a base, pump body, a first flange, a second flange, an external pipeline, two sets of auxiliary positioning components, and a sealing component. It realizes automatic hole alignment of the first and second flanges, allowing a single operator to connect the external pipeline, reducing the overall connection cycle. With the assistance of the reinforcing part, the positioning ring strip and the first elastic sealing bladder at the bottom of the positioning ring groove are pressed together, causing the second elastic sealing bladder to expand and fill the connection between the positioning ring strip and the positioning ring groove, which can enhance the overall sealing performance and prevent leakage at the connection. However, in order to avoid excessive pressure inside the process pump during use, a pressure relief valve is usually added to protect the process pump. However, the chemical substances that leak out during pressure relief are exposed to the air. If they are not cleaned up in time, the chemical raw materials will cause environmental pollution.

[0005] Therefore, in view of this, we studied and improved the existing structure to address its shortcomings and proposed a double-sealed chemical process pump. Utility Model Content

[0006] The purpose of this invention is to provide a double-sealed chemical process pump to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-sealed chemical process pump, comprising a supporting base plate, a process pump body mounted on the upper surface of the supporting base plate, a conveying pipe being provided on the upper front surface of the process pump body, a connecting pipe being provided on the outer surface of the conveying pipe, a pressure relief valve being provided at the output end of the connecting pipe, a top plate being mounted on the upper surface of the pressure relief valve, support frames being provided on both sides of the upper surface of the pressure relief valve, a threaded rod being spirally mounted on the upper surface of the support frame, a pressure adjusting spring being mounted on the lower outer surface of the threaded rod, and a fixed connection being provided between the lower surface of the pressure adjusting spring and the top plate.

[0008] Preferably, a second connecting pipe is provided on the left side of the outer surface of the pressure relief valve, and a storage tank is installed at the end of the second connecting pipe.

[0009] Preferably, a flange is provided on the upper surface of the conveying pipe, and a support plate is provided on the outer surface of the flange.

[0010] Preferably, guide rods are installed on both sides of the upper surface of the support plate, and the upper outer surface of the guide rods is arc-shaped.

[0011] Preferably, a damping shock absorber is installed on the bottom outer surface of the guide slide rod, and the damping shock absorber consists of a damping pad, a damper, and a damping spring.

[0012] Preferably, flange two is installed on the upper surface of flange one, and conveying pipe two is provided on the upper surface of flange two.

[0013] Preferably, the outer surface of the flange two is provided with a support plate two, and the lower surface of the support plate two is provided with positioning cylinders on both sides, and the positioning cylinders and the outer surface of the guide slide rod are provided with a sliding connection.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, through the arrangement of a supporting base plate, a process pump body, a first conveying pipe, a first connecting pipe, a pressure relief valve, a top plate, a support frame, a threaded rod, a pressure adjusting spring, a second connecting pipe, and a storage tank, allows for the adjustment of the pressure threshold of the pressure relief valve by pressing down the pressure adjusting spring through a helical drive, according to the usage requirements of the process pump body. This enables the pressure relief valve to automatically open when the pressure reaches the set value, releasing excess pressure, preventing continuous pressure rise, and ensuring the safe operation of the pump and the entire system. The storage tank allows for the collection of leaked chemical raw materials, preventing environmental pollution from chemical leaks.

[0016] 2. This utility model, through the arrangement of flange one, support plate one, guide slide rod, damping shock absorber, flange two, support plate two, positioning cylinder and conveying pipe two, through the setting of guide slide rod, can accurately position flange two and flange one during docking installation, improving the installation and disassembly speed between flange one and flange two; through the setting of damping shock absorber, when the positioning cylinder is inserted into the guide slide rod for positioning installation, the impact generated by downward pressure can be reduced through damping friction, reducing the wear between flange two and flange one. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the pressure relief valve of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a three-dimensional structural diagram of the damping shock absorber of this utility model.

[0021] In the diagram: 1. Support base plate; 101. Process pump body; 2. Delivery pipe one; 201. Connecting pipe one; 202. Pressure relief valve; 203. Top plate; 204. Support frame; 205. Threaded rod; 206. Pressure adjusting spring; 207. Connecting pipe two; 208. Storage tank; 3. Flange one; 301. Support plate one; 302. Guide slide rod; 303. Damping shock absorber; 304. Flange two; 305. Support plate two; 306. Positioning cylinder; 307. Delivery pipe two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-3As shown, a double-sealed chemical process pump includes a process pump body 101 mounted on the upper surface of a supporting base plate 1. A delivery pipe 2 is provided on the upper front surface of the process pump body 101, and a connecting pipe 201 is provided on the outer surface of the delivery pipe 2. A pressure relief valve 202 is provided at the output end of the connecting pipe 201, and a top plate 203 is mounted on the upper surface of the pressure relief valve 202. The advantage of this configuration is that, by setting the pressure relief valve 202, the process pump body 101 can be protected by releasing pressure when the internal pressure of the process pump body 101 exceeds a threshold.

[0024] Furthermore, support frames 204 are provided on both sides of the upper surface of the pressure relief valve 202, and threaded rods 205 are screwed onto the upper surface of the support frames 204. A pressure adjusting spring 206 is installed on the lower outer surface of the threaded rod 205, and the lower surface of the pressure adjusting spring 206 is fixedly connected to the top plate 203. The advantage of this setting is that, by setting the threaded rod 205, the pressure adjusting spring 206 can be pressed down by the screw drive according to the usage requirements of the process pump body 101, so as to adjust the pressure threshold of the pressure relief valve 202, so that the pressure relief valve 202 can automatically open when the pressure reaches the set value, release excess pressure, prevent the pressure from continuing to rise, and ensure the safe operation of the pump and the entire system.

[0025] Furthermore, a connecting pipe 207 is provided on the left side of the outer surface of the pressure relief valve 202, and a storage tank 208 is installed at the end of the connecting pipe 207. The advantage of this arrangement is that the leaked chemical raw materials can be collected by the storage tank 208 to avoid pollution to the environment caused by the leakage of chemical raw materials.

[0026] like Figure 4 As shown, a flange 3 is provided on the upper surface of the conveying pipe 2, and a support plate 301 is provided on the outer surface of the flange 3. Guide slide rods 302 are installed on both sides of the upper surface of the support plate 301, and the upper outer surface of the guide slide rods 302 is arc-shaped. The advantage of this setting is that, through the setting of the guide slide rods 302, the flange 304 and the flange 3 can be accurately positioned when they are connected and installed, thereby improving the installation and disassembly speed between the flange 3 and the flange 304.

[0027] Furthermore, a damping shock absorber 303 is installed on the bottom outer surface of the guide slide rod 302. The damping shock absorber 303 consists of a damping pad, a damper, and a damping spring. The advantage of this setting is that, by setting the damping shock absorber 303, when the positioning cylinder 306 is inserted into the guide slide rod 302 for positioning and installation, the impact generated by downward pressure can be reduced through damping friction, thereby reducing the wear between flange 2 304 and flange 1 3.

[0028] Furthermore, a second flange 304 is mounted on the upper surface of flange 3, and a second conveying pipe 307 is provided on the upper surface of flange 304. A second support plate 305 is provided on the outer surface of flange 304, and positioning cylinders 306 are provided on both sides of the lower surface of the second support plate 305. The positioning cylinders 306 and the outer surface of the guide slide rod 302 are slidably connected. The advantage of this setting is that by setting the positioning cylinders 306, they can be slidably connected with the guide slide rod 302, which facilitates the connection and installation of flange 3 and flange 304.

[0029] Working principle: When using this double-sealed chemical process pump, firstly, when using the pump body 101, lift flange 2 304 and slide the support plate 2 305 with positioning cylinder 306 into the guide slide rod 302. When the positioning cylinder 306 contacts the damping shock absorber 303 on the bottom outer surface of the guide slide rod 302, the impact generated by the downward pressure is reduced by friction until flange 2 304 and flange 1 3 are connected and then fixed with bolts. Before using the pump body 101, the pressure adjustment spring 206 can be pressed down by rotating the threaded rod 205 to adjust the threshold of the pressure relief valve 202. When the pump body 101 is in use, if the internal pressure exceeds the threshold of the pressure relief valve 202, the pressure relief valve 202 will open and the chemical will be sent into the storage tank 208 through the connecting pipe 2 207. This is the working principle of the double-sealed chemical process pump.

Claims

1. A double-sealed chemical process pump, comprising a supporting base plate (1), characterized in that, The upper surface of the support base plate (1) is equipped with a process pump body (101), and the upper surface of the front end of the process pump body (101) is provided with a conveying pipe (2). The outer surface of the conveying pipe (2) is provided with a connecting pipe (201), and the output end of the connecting pipe (201) is provided with a pressure relief valve (202). The upper surface of the pressure relief valve (202) is equipped with a top plate (203). The upper surface of the pressure relief valve (202) is provided with support frames (204) on both sides. The upper surface of the support frame (204) is spirally equipped with a threaded rod (205). The lower outer surface of the threaded rod (205) is equipped with a pressure regulating spring (206), and the lower surface of the pressure regulating spring (206) is fixedly connected to the top plate (203).

2. The double-seal chemical process pump according to claim 1, characterized in that, The pressure relief valve (202) has a connecting pipe (207) on the left side of its outer surface, and a storage tank (208) is installed at the end of the connecting pipe (207).

3. A double-sealed chemical process pump according to claim 1, characterized in that, The upper surface of the conveying pipe (2) is provided with a flange (3), and the outer surface of the flange (3) is provided with a support plate (301).

4. A double-sealed chemical process pump according to claim 3, characterized in that, Guide slide rods (302) are installed on both sides of the upper surface of the support plate (301), and the upper outer surface of the guide slide rods (302) is set to be arc-shaped.

5. A double-seal chemical process pump according to claim 4, characterized in that, The bottom outer surface of the guide slide (302) is equipped with a damping shock absorber (303), and the damping shock absorber (303) is composed of a damping pad, a damper and a damping spring.

6. A double-seal chemical process pump according to claim 3, characterized in that, The upper surface of the first flange (3) is fitted with the second flange (304), and the upper surface of the second flange (304) is provided with the second conveying pipe (307).

7. A double-sealed chemical process pump according to claim 6, characterized in that, The outer surface of the flange two (304) is provided with a support plate two (305), and the lower surface of the support plate two (305) is provided with positioning cylinders (306) on both sides, and the positioning cylinders (306) and the outer surface of the guide slide rod (302) are provided with a sliding connection.

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