Chemical pump for chemical production

Abstract

The utility model discloses a chemical industry pump for chemical production relates to chemical industry pump field, the utility model discloses a chemical pump body, and the liquid inlet end of chemical pump body is connected with the liquid inlet pipe, and the inside fixed of liquid inlet pipe has the stop ring, and the inside of liquid inlet pipe inserts the baffle cylinder, and one end of baffle cylinder is fixed with the mounting ring, and the bottom one side of baffle cylinder is equipped with the feed opening, and the inside installation of mounting ring has the filter screen cylinder, and the outer wall of filter screen cylinder is equipped with the spiral flow guide plate. The utility model discloses the filter screen cylinder and spiral flow guide plate are set up, and the filter screen cylinder is the conical screen cylinder structure, and when the medium flows through the conical filter screen cylinder, the spiral flow guide plate of outer wall guides the medium to form the spiral flow along the conical surface (centrifugal force effect), and the solid impurity in the medium is intercepted on the outside by the filter screen cylinder, simultaneously, the filter screen cylinder of conical cylinder shape makes the impurity slide down to the feed opening at the bottom of baffle cylinder along the conical surface by the aid of gravity, thereby reducing the concentrated accumulation of impurity on the filter surface, significantly reducing the filter screen blockage frequency, prolonging the filtration cycle.

Description

Technical Field

[0001] This utility model relates to the field of chemical pumps, specifically a chemical pump for chemical production. Background Technology

[0002] Chemical pumps are widely used in the chemical industry. They can also be used for urban water supply and drainage, as well as for irrigation and drainage in farmland and orchards. They are used to transport clean water or other liquids with similar physical and chemical properties to clean water. In the chemical industry, chemical pumps are mainly used to transport liquid chemical raw materials.

[0003] Existing chemical pumps used in chemical production are equipped with filters to filter the incoming fluid and prevent impurities in the fluid from entering the pump and colliding with the internal components. However, the filters installed at the inlet of the chemical pump are mostly flat (i.e., disc-shaped). This filtration method causes impurities to easily accumulate on the filter surface, making the filter holes very easy to become clogged, resulting in a decrease in flow rate and thus reducing the filtration effect of the filter. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a chemical pump for chemical production, so as to solve the technical problem that impurities are easily concentrated and accumulated on the filter surface when filtering fluids through a flat (i.e., disc-shaped) filter screen.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chemical pump for chemical production, comprising a chemical pump body, an inlet pipe connected to the inlet end of the chemical pump body, a stop ring fixed inside the inlet pipe, a baffle inserted inside the inlet pipe, an installation ring fixed at one end of the baffle, a material port opened on one side of the bottom of the baffle, a filter screen cylinder installed inside the installation ring, a spiral guide plate installed on the outer wall of the filter screen cylinder, and a handle fixed at one end of the filter screen cylinder.

[0006] By adopting the above technical solution, the filter screen can filter the liquid entering the inlet pipe and prevent impurities from entering the pump body.

[0007] Furthermore, one end of the liquid inlet pipe is provided with multiple positioning grooves, and positioning blocks are inserted inside the positioning grooves, and the positioning blocks are fixedly connected to the outer wall of the baffle.

[0008] By adopting the above technical solution, the positioning block and positioning groove are matched to ensure that the baffle and filter cylinder are accurately installed in the liquid inlet pipe, and avoid the installation of the baffle and filter cylinder being affected by the offset.

[0009] Furthermore, the other end of the baffle is provided with a first sealing ring, which is made of fluororubber material.

[0010] By adopting the above technical solution, fluororubber is resistant to chemical media corrosion, and the first sealing ring can seal the contact surface between the baffle and the external pipeline, preventing unfiltered media from leaking from the gap, while avoiding corrosive media from eroding the equipment.

[0011] Furthermore, the outer wall of the mounting ring is provided with a second sealing ring, the outer wall of the second sealing ring is in contact with the inner wall of the liquid inlet pipe, and the second sealing ring is made of fluororubber material.

[0012] By adopting the above technical solution, unfiltered media is prevented from directly entering the pump body around the filter screen, ensuring the filtration effect and preventing impurities from entering the installation gap and causing component jamming.

[0013] Furthermore, an electric drain valve is installed at the bottom of the liquid inlet pipe, and the electric drain valve is connected to the material outlet.

[0014] By adopting the above technical solution, the intercepted impurities can enter the electric drain valve through the material inlet. If it is necessary to drain the impurities, the electric drain valve can be opened to allow the impurities to be discharged through the electric drain valve.

[0015] Furthermore, one end of the inlet pipe is fitted with an external pipe via a flange, one end of the external pipe is in contact with the baffle, and one side of the first sealing ring is in contact with the external pipe.

[0016] By adopting the above technical solution, the flange connection ensures the connection strength between the external pipeline and the inlet pipe, and the flange pre-tightening force compresses the first sealing ring to ensure a tight seal, further reducing the risk of leakage.

[0017] Furthermore, one side of the stop ring is fitted with the mounting ring.

[0018] By adopting the above technical solution, the stop ring can prevent the baffle from being excessively inserted into the inlet pipe and avoid damage to the filter screen cylinder from collision with the pump body inlet end.

[0019] Furthermore, the outlet end of the chemical pump body is equipped with an outlet pipe, and the end of the outlet pipe is equipped with a flange.

[0020] By adopting the above technical solution, the liquid outlet pipe is used to transport the filtered medium to downstream equipment.

[0021] Furthermore, the mounting ring, filter cylinder, and spiral guide plate are all made of 304 stainless steel or 316L stainless steel. The mounting ring is welded to the filter cylinder, the spiral guide plate is welded to the filter cylinder, and the filter cylinder is in the shape of a conical cylinder.

[0022] By adopting the above technical solutions, 304 stainless steel is suitable for ordinary non-corrosive media, while 316L stainless steel is suitable for chemical media containing chloride ions, weak acids and alkalis. Operators can select the appropriate materials to make the mounting ring, filter screen, and spiral guide plate according to the needs of the chemical pump, thereby avoiding corrosion damage to the components.

[0023] Furthermore, both the electric drain valve and the chemical pump body are electrically connected to an external control system.

[0024] By adopting the above technical solution, the electric drain valve and the chemical pump can be started or stopped by an external control system. The electric drain valve can be linked with the control system to achieve on-demand discharge of impurities.

[0025] In summary, the present invention has the following main advantages: 1. This utility model is equipped with a filter screen cylinder and a spiral guide plate. The filter screen cylinder is a conical filter screen cylinder structure. When the medium flows through the conical filter screen cylinder, the spiral guide plate on the outer wall guides the medium to form a swirling flow (centrifugal force) along the conical surface. Solid impurities in the medium are intercepted on the outside by the filter screen cylinder. At the same time, the conical filter screen cylinder uses gravity to make the impurities slide down the conical surface to the feed port at the bottom of the baffle cylinder, thereby reducing the concentrated accumulation of impurities on the filter surface, significantly reducing the frequency of filter screen clogging, and extending the filtration cycle. 2. This utility model, by setting a stop ring, can prevent the baffle cylinder from being excessively inserted into the inlet pipe and avoid the filter cylinder from colliding and being damaged with the pump body inlet end. Through the cooperation of the positioning block and the positioning groove, it ensures that the installation position of the baffle cylinder and the filter cylinder in the inlet pipe is accurate and avoids the installation of the baffle cylinder and the filter cylinder being affected by the deviation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall side structure of this utility model; Figure 3 This is a schematic diagram of the side structure of the liquid inlet pipe of this utility model; Figure 4 This is a schematic diagram of the exploded structure of this utility model; Figure 5 This is a schematic diagram of the positioning groove structure of this utility model; Figure 6 This is a schematic diagram of the side structure of the filter cylinder of this utility model; Figure 7 This is a schematic diagram of the front section structure of the liquid inlet pipe of this utility model.

[0027] In the diagram: 1. Chemical pump body; 2. Discharge pipe; 3. Inlet pipe; 4. Stop ring; 5. Baffle; 6. Positioning groove; 7. Positioning block; 8. External pipe; 9. First sealing ring; 10. Second sealing ring; 11. Material inlet; 12. Electric drain valve; 13. Mounting ring; 14. Filter screen cylinder; 15. Spiral guide plate; 16. Handle rod. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] Example 1:

[0031] A chemical pump used in chemical production, such as Figures 1-7 As shown, the pump includes a chemical pump body 1. An inlet pipe 3 is connected to the inlet end of the chemical pump body 1. A stop ring 4 is fixed inside the inlet pipe 3. A baffle 5 is inserted inside the inlet pipe 3, and an installation ring 13 is fixed to one end of the baffle 5. A feed port 11 is opened on one side of the bottom of the baffle 5. A filter screen cylinder 14 is installed inside the installation ring 13, and a spiral guide plate 15 is installed on the outer wall of the filter screen cylinder 14. A handle 16 is fixed to one end of the filter screen cylinder 14. The handle 16 is made of 304 stainless steel or 316 stainless steel. Made of stainless steel, the handle 16 is welded to the filter cylinder 14. The filter cylinder 14 can filter the liquid entering the inlet pipe 3 to prevent impurities from entering the pump body. The outer wall of the mounting ring 13 is provided with a second sealing ring 10. The outer wall of the second sealing ring 10 fits against the inner wall of the inlet pipe 3. The second sealing ring 10 is made of fluororubber to prevent unfiltered media from directly entering the pump body around the filter cylinder 14, ensuring the filtration effect, and at the same time preventing impurities from entering the installation gap and causing the components to jam.

[0032] See Figures 1-7An electric drain valve 12 is installed at the bottom of the inlet pipe 3. The electric drain valve 12 is connected to the feed port 11. The intercepted impurities can enter the electric drain valve 12 through the feed port 11. If sewage needs to be discharged, the electric drain valve 12 can be opened to allow the impurities to be discharged through the electric drain valve 12. An external pipe 8 is installed at one end of the inlet pipe 3 through a flange. One end of the external pipe 8 is in contact with the baffle 5. One side of the first sealing ring 9 is in contact with the external pipe 8. The flange connection ensures the connection strength between the external pipe 8 and the inlet pipe 3. The flange pre-tightening force compresses the first sealing ring 9 to ensure that the sealing surface is tightly fitted, further reducing the risk of leakage. One side of the stop ring 4 is in contact with the mounting ring 13. The stop ring 4 can prevent the baffle 5 from being excessively inserted into the inlet pipe 3 and avoid the filter screen 14 from colliding and being damaged with the pump body inlet end. An outlet pipe 2 is installed at the outlet end of the chemical pump body 1. A flange is installed at the end of the outlet pipe 2. The outlet pipe 2 is used to transport the filtered medium to the downstream equipment.

[0033] See Figures 1-5 The mounting ring 13, filter screen cylinder 14, and spiral guide plate 15 are all made of 304 stainless steel or 316L stainless steel. The mounting ring 13 is welded to the filter screen cylinder 14, and the spiral guide plate 15 is welded to the filter screen cylinder 14. The filter screen cylinder 14 is conical. 304 stainless steel is suitable for ordinary non-corrosive media, while 316L stainless steel is suitable for chemical media containing chloride ions, weak acids, and alkalis. Operators can select the appropriate materials for the mounting ring 13, filter screen cylinder 14, and spiral guide plate 15 according to the needs of the chemical pump, thereby avoiding corrosion damage to the components. The electric drain valve 12 and the chemical pump body 1 are electrically connected to the external control system so that the electric drain valve 12 and the chemical pump body 1 can be started or closed through the external control system. The electric drain valve 12 can be linked to the control system to achieve on-demand discharge of impurities.

[0034] Example 2:

[0035] Based on the above embodiment 1, in order to facilitate the installation of the baffle 5 and the filter screen 14, it is necessary to position the baffle 5 and the filter screen 14. Therefore, the following structure will be set.

[0036] Specifically, one end of the liquid inlet pipe 3 is provided with multiple positioning grooves 6. Positioning blocks 7 are inserted inside the positioning grooves 6 and are fixedly connected to the outer wall of the baffle 5. The positioning blocks 7 are adapted to the positioning grooves 6. Through the cooperation of the positioning blocks 7 and the positioning grooves 6, the installation position of the baffle 5 and the filter screen cylinder 14 in the liquid inlet pipe 3 is ensured to be accurate, and the installation of the baffle 5 and the filter screen cylinder 14 is avoided due to offset.

[0037] Example 3:

[0038] Based on the above embodiment 1, in order to improve the sealing between the baffle 5 and the external pipe 8, the following structure will be set.

[0039] Specifically, the other end of the baffle 5 is provided with a first sealing ring 9, which is made of fluororubber material. Fluororubber is resistant to chemical media corrosion (acids, alkalis, organic solvents). The first sealing ring 9 can seal the contact surface between the baffle 5 and the external pipe 8 to prevent unfiltered media from leaking from the gap, and at the same time avoid corrosive media from eroding the equipment.

[0040] The working principle of this utility model is as follows: First, during installation, the operator inserts the baffle 5 into the inlet pipe 3, aligns the positioning block 7 on the outer wall of the baffle 5 with the positioning groove 6 of the inlet pipe, and inserts it along the groove until the mounting ring 13 fits against the stop ring 4 inside the inlet pipe 3. At this time, the second sealing ring 10 on the outer wall of the mounting ring 13 fits tightly against the inner wall of the inlet pipe 3, forming the first seal. The external pipe 8 is connected to the inlet pipe 3 through the flange, so that the end of the external pipe fits against the first sealing ring 9 of the baffle 5. The flange pre-tightening force compresses the first sealing ring 9, forming the second seal. At this time, the electric drain valve 12 is connected to the material port 11 of the baffle, and the electric drain valve and the chemical pump body 1 are connected to the external control system. Then, the electric drain valve 12 is connected to the external collection device, and the installation can be completed. The external control system starts the chemical pump body 1. The medium to be filtered enters the baffle cylinder 5 from the external pipe 8. When the medium flows through the conical filter cylinder 14, the spiral guide plate 15 on the outer wall guides the medium to form a swirling flow along the conical surface (acting with centrifugal force). Solid impurities in the medium are intercepted on the outside by the filter cylinder 14. At the same time, the conical filter cylinder 14 uses gravity to make the impurities slide down the conical surface to the feed port 11 at the bottom of the baffle cylinder 5. When it is necessary to discharge impurities from the feed inlet 11, the electric drain valve 12 can be opened. The impurities enter the electric drain valve 12 through the feed inlet 11 and are discharged to the external collection device. After the impurities are discharged, the electric drain valve 12 can be closed.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A chemical pump for chemical production, comprising a chemical pump body (1), characterized in that: The inlet end of the chemical pump body (1) is connected to an inlet pipe (3). A stop ring (4) is fixed inside the inlet pipe (3). A baffle (5) is inserted inside the inlet pipe (3). An installation ring (13) is fixed at one end of the baffle (5). A material port (11) is opened on one side of the bottom of the baffle (5). A filter screen cylinder (14) is installed inside the installation ring (13). A spiral guide plate (15) is installed on the outer wall of the filter screen cylinder (14). A handle (16) is fixed at one end of the filter screen cylinder (14). The installation ring (13) is welded to the filter screen cylinder (14). The spiral guide plate (15) is welded to the filter screen cylinder (14). The filter screen cylinder (14) is conical.

2. A chemical pump for chemical production according to claim 1, characterized in that: The liquid inlet pipe (3) also has multiple positioning grooves (6) at one end. Positioning blocks (7) are inserted inside the positioning grooves (6), and the positioning blocks (7) are fixedly connected to the outer wall of the baffle (5).

3. A chemical pump for chemical production according to claim 1, characterized in that: The other end of the baffle (5) is provided with a first sealing ring (9), which is made of fluororubber material.

4. A chemical pump for chemical production according to claim 1, characterized in that: The outer wall of the mounting ring (13) is provided with a second sealing ring (10), the outer wall of the second sealing ring (10) is in contact with the inner wall of the liquid inlet pipe (3), and the second sealing ring (10) is made of fluororubber material.

5. A chemical pump for chemical production according to claim 1, characterized in that: An electric drain valve (12) is installed at the bottom of the liquid inlet pipe (3), and the electric drain valve (12) is connected to the material inlet (11).

6. A chemical pump for chemical production according to claim 3, characterized in that: One end of the inlet pipe (3) is fitted with an external pipe (8) via a flange. One end of the external pipe (8) is in contact with the baffle (5), and one side of the first sealing ring (9) is in contact with the external pipe (8).

7. A chemical pump for chemical production according to claim 1, characterized in that: One side of the stop ring (4) is in contact with the mounting ring (13).

8. A chemical pump for chemical production according to claim 1, characterized in that: The chemical pump body (1) is equipped with a liquid outlet pipe (2) at the liquid outlet end, and a flange is installed at the end of the liquid outlet pipe (2).

9. A chemical pump for chemical production according to claim 1, characterized in that: The mounting ring (13), filter cylinder (14) and spiral guide plate (15) are all made of 304 stainless steel or 316L stainless steel.

10. A chemical pump for chemical production according to claim 5, characterized in that: The electric drain valve (12) and the chemical pump body (1) are both electrically connected to the external control system.

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