A self-priming pump for chemical neutralization tank
By introducing a speed reduction block and filter tank mounting base into the self-priming discharge pump, the problem of filter tank erosion caused by the high speed of the self-priming pump is solved, realizing multi-stage speed reduction and convenient replacement of the filter tank, and improving the service life and stability of the pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUANENG POWER INT INC
- Filing Date
- 2023-01-13
- Publication Date
- 2026-04-17
AI Technical Summary
Existing self-priming discharge pumps cause the filter media tank to be washed away due to the high speed during the pumping process, which reduces the service life of the filter media tank and increases the pollution of wastewater.
By incorporating a speed reduction block, filter tank mounting base, sliding connection block, and limit rod, multi-stage speed reduction and filtration of wastewater are achieved. Combined with a convenient filter tank replacement mechanism, the stability and portability of the pump are improved.
It effectively reduces the impact of wastewater on the filter media, extends the service life of the filter tank, reduces wastewater pollution, and improves the service life and portability of the pump.
Smart Images

Figure CN116044824B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of auxiliary equipment technology for chemical neutralization tanks, specifically a self-priming discharge pump applied to chemical neutralization tanks. Background Technology
[0002] A neutralization tank is a water treatment structure used to neutralize acidic or alkaline wastewater. It is used for treating low-concentration acidic and alkaline wastewater with an acid content of less than 3%-4% and an alkalinity content of less than 2%. The wastewater in the neutralization tank often requires a self-priming discharge pump for drainage.
[0003] There are many types of such devices on the market today, which can basically meet people's needs. However, during the use of self-priming discharge pumps, the pumping speed is often fast, which washes away the filter media in the filter tank. This not only reduces the service life of the filter tank, but also increases the pollution of the discharged wastewater. Summary of the Invention
[0004] The purpose of this invention is to provide a self-priming discharge pump for use in chemical neutralization tanks, in order to solve the problem mentioned in the background art that, during the use of self-priming discharge pumps, the pumping speed is often too fast, which washes away the filter media in the filter tank, not only reducing the service life of the filter tank, but also increasing the pollution of the discharged wastewater.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-priming discharge pump for a chemical neutralization tank, comprising a pump housing, a pump body fixedly connected to the top of the pump housing, an inlet pipe fixedly connected to one side of the pump housing, a deepening pipe fixedly connected to one side of the inlet pipe, an end of the deepening pipe away from the inlet pipe fixedly connected to one side of the pump housing, a speed reduction block fixedly connected to the bottom of the pump housing, several sets of speed reduction through holes opened on both sides of the speed reduction block, a filter tank mounting base provided on one side of the speed reduction block, the filter tank mounting base being placed inside the pump housing, and an outlet pipe fixedly connected to the end of the pump housing away from the inlet pipe, thereby reducing the impact force of wastewater on the filter media inside the filter tank mounting base.
[0006] Preferably, a slide rod is fixedly connected to the top of the pump housing, and a top plate is fixedly connected to the top of the slide rod, thereby fixing the top plate.
[0007] Preferably, a filter tank sliding seat is fixedly connected inside the pump housing, and the filter tank mounting seat slides inside the filter tank sliding seat, thereby enabling the replacement of the filter tank mounting seat.
[0008] Preferably, a sliding connecting block is fixedly connected to the top of the filter tank mounting base, and one end of the sliding connecting block slides on the outer side wall of the slide rod, thereby realizing the sliding lifting and lowering of the sliding connecting block.
[0009] Preferably, the deceleration block has a trapezoidal cross-section and the top of the deceleration block is not closed, thereby achieving a second reduction in the flow rate of wastewater.
[0010] Preferably, a limiting hole is provided at the top of the top plate, and a limiting rod is rotatably connected to the top of the sliding connecting block below the limiting hole. The cross-section of the limiting rod is smaller than the cross-section of the limiting hole, so that the limiting rod passes through the limiting hole.
[0011] Preferably, a movable rod is fixedly connected to the top of the sliding connecting block, and a return spring is sleeved on the outer side of the movable rod. The top of the return spring is fixedly connected to the bottom of the top plate, and the movable rod is slidably connected to one side of the top plate, thereby limiting the movement of the sliding connecting block.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. By incorporating an outlet pipe, a filter tank mounting base, an inlet pipe, a deepening pipe, a speed reduction block, and a speed reduction through hole, the pump body and the inlet pipe work together to allow wastewater to enter, the pump housing and the outlet pipe work together to allow wastewater to exit, the pump housing and the deepening pipe work together to allow the wastewater to slow down for the first time, the deepening pipe, the speed reduction block, and the speed reduction through hole work together to allow the wastewater to slow down for the second time, and the pump housing and the filter tank mounting base work together to allow the wastewater to be filtered. This improves the service life of this self-priming discharge pump used in chemical neutralization tanks.
[0014] 2. By setting up a filter tank sliding seat, a sliding connecting block, and a sliding rod, the filter tank mounting seat can be replaced through the cooperation between the filter tank sliding seat and the filter tank mounting seat, the sliding connecting block can be slidable through the cooperation between the sliding connecting block and the sliding rod, and the filter tank mounting seat can be raised and lowered through the cooperation between the filter tank sliding seat, the filter tank mounting seat, and the sliding connecting block, thereby improving the portability of this self-priming discharge pump used in chemical neutralization tanks.
[0015] 3. By incorporating a movable rod, a top plate, a return spring, a limiting rod, and a limiting hole, the sliding connecting block is limited by the limiting rod and the limiting hole. The movable rod, the top plate, and the return spring work together to bring the sliding connecting block into contact, increasing its sealing performance and thus improving the stability of this self-priming discharge pump used in chemical neutralization tanks. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the device of the present invention;
[0017] Figure 2 This is a frontal view of the internal structure of the present invention;
[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the deceleration block of the present invention;
[0019] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;
[0020] Figure 5 This is a top view of the top plate structure of the present invention.
[0021] In the diagram: 1. Pump housing; 2. Filter tank sliding seat; 3. Outlet pipe; 4. Filter tank mounting base; 5. Pump body; 6. Inlet pipe; 7. Deepened pipe; 8. Speed reduction block; 9. Speed reduction through hole; 10. Movable rod; 11. Top plate; 12. Return spring; 13. Limiting rod; 14. Sliding connecting block; 15. Slide rod; 16. Limiting hole. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] Please see Figure 1-5 This invention provides a technical solution: a self-priming discharge pump for use in chemical neutralization tanks, including a pump housing 1. (See attached image.) Figure 1 , Figure 2 and Figure 3 A pump body 5 is fixedly connected to the top of the pump housing 1. A water inlet pipe 6 is fixedly connected to one side of the pump housing 1. A deepening pipe 7 is fixedly connected to one side of the water inlet pipe 6. The end of the deepening pipe 7 away from the water inlet pipe 6 is fixedly connected to one side of the pump housing 1. A speed reduction block 8 is fixedly connected to the bottom of the pump housing 1. Several sets of speed reduction through holes 9 are opened on both sides of the speed reduction block 8. A filter tank mounting base 4 is provided on one side of the speed reduction block 8. The filter tank mounting base 4 is placed inside the pump housing 1. A water outlet pipe 3 is fixedly connected to the end of the pump housing 1 away from the water inlet pipe 6. The cross-section is trapezoidal, and the top of the deceleration block 8 is not closed, which achieves a second reduction in the flow rate of wastewater. Wastewater enters through the cooperation of the pump body 5 and the inlet pipe 6, and is discharged through the cooperation of the pump housing 1 and the outlet pipe 3. The wastewater is decelerated for the first time through the cooperation of the pump housing 1 and the deepening pipe 7. The wastewater is decelerated for the second time through the cooperation of the deepening pipe 7, the deceleration block 8 and the deceleration through hole 9. The wastewater is filtered through the cooperation of the pump housing 1 and the filter tank mounting base 4, thereby improving the service life of this self-priming discharge pump used in chemical neutralization tanks.
[0024] Please see Figure 1 , Figure 2 and Figure 4 A slide rod 15 is fixedly connected to the top of the pump housing 1, and a top plate 11 is fixedly connected to the top of the slide rod 15, thus fixing the top plate 11. A filter tank sliding seat 2 is fixedly connected inside the pump housing 1, and a filter tank mounting seat 4 slides inside the filter tank sliding seat 2, thus enabling the replacement of the filter tank mounting seat 4. A sliding connecting block 14 is fixedly connected to the top of the filter tank mounting seat 4, and one end of the sliding connecting block 14 slides on the outer wall of the slide rod 15, thus enabling the sliding and lifting of the sliding connecting block 14. The replacement of the filter tank mounting seat 4 is achieved through the cooperation between the filter tank sliding seat 2 and the filter tank mounting seat 4. The sliding of the sliding connecting block 14 is achieved through the cooperation between the sliding connecting block 14 and the slide rod 15. The lifting and lowering of the filter tank mounting seat 4 is achieved through the cooperation between the filter tank sliding seat 2, the filter tank mounting seat 4 and the sliding connecting block 14, thereby improving the portability of this self-priming discharge pump used in chemical neutralization tanks.
[0025] Please see Figure 1 , Figure 2 and Figure 5 A limiting hole 16 is provided at the top of the top plate 11. A limiting rod 13 is rotatably connected to the top of the sliding connecting block 14 below the limiting hole 16. The cross-section of the limiting rod 13 is smaller than that of the limiting hole 16, allowing the limiting rod 13 to pass through the limiting hole 16. A movable rod 10 is fixedly connected to the top of the sliding connecting block 14. A return spring 12 is sleeved on the outside of the movable rod 10. The top of the return spring 12 is fixedly connected to the bottom of the top plate 11. The movable rod 10 is slidably connected to one side of the top plate 11, thus limiting the sliding connecting block 14. The limiting rod 13 and the limiting hole 16 limit the sliding connecting block 14. The movable rod 10, the top plate 11 and the return spring 12 cooperate to make the sliding connecting block 14 contact the top, increasing its sealing performance and thus improving the stability of this self-priming discharge pump used in chemical neutralization tanks.
[0026] Working principle: First, when wastewater enters the pump casing 1 through the inlet pipe 6, it first enters the deepening pipe 7 and undergoes initial energy dissipation and deceleration due to the height difference of the deepening pipe 7. When the wastewater enters the deceleration block 8, the flow diameter of the wastewater is increased through the cooperation of the deceleration block 8 and the deceleration through hole 9, thus achieving a second energy dissipation and deceleration. This reduces the impact force when the wastewater is filtered through the filter tank mounting base 4, preventing the filter media from being washed away. This improves the service life of this self-priming discharge pump used in chemical neutralization tanks and reduces pollution.
[0027] Secondly, when it is necessary to replace the filter media inside the filter tank mounting base 4, the sliding connecting block 14 is lifted to slide it, thereby allowing the filter tank mounting base 4 to slide out from the inside of the filter tank sliding seat 2. The filter tank inside the filter tank mounting base 4 is then slid out from the inside of the filter tank mounting base 4 and replaced. The filter tank mounting base 4 is then slid back into the inside of the filter tank sliding seat 2, thus completing the replacement of the filter tank mounting base 4. This improves the portability of this self-priming discharge pump used in chemical neutralization tanks.
[0028] Finally, when replacing the filter tank mounting base 4, to avoid repeated operations due to the filter tank mounting base 4 slipping off, the sliding connecting block 14 is slid to the top, allowing the limiting rod 13 to pass through the limiting hole 16. The limiting rod 13 is then rotated to lock onto the top of the top plate 11, thereby limiting the sliding connecting block 14. After replacing the filter tank inside the filter tank mounting base 4, the limiting rod 13 is adjusted to pass through the limiting hole 16. With the help of the return spring 12, the seal between the filter tank sliding seat 2 and the filter tank mounting base 4 is reinforced and reset, thus completing the work and improving the stability of this self-priming discharge pump used in chemical neutralization tanks.
[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A self-priming discharge pump for use in a chemical neutralization tank, comprising a pump housing (1), characterized in that: The pump body (5) is fixedly connected to the top of the pump housing (1). A water inlet pipe (6) is fixedly connected to one side of the pump housing (1). A deepening pipe (7) is fixedly connected to one side of the water inlet pipe (6). The end of the deepening pipe (7) away from the water inlet pipe (6) is fixedly connected to one side of the pump housing (1). A speed reduction block (8) is fixedly connected to the bottom of the pump housing (1). Several sets of speed reduction through holes (9) are opened on both sides of the speed reduction block (8). A filter tank mounting seat (4) is provided on one side of the speed reduction block (8). The filter tank mounting seat (4) is placed inside the pump housing (1). A water outlet pipe (3) is fixedly connected to the end of the pump housing (1) away from the water inlet pipe (6). A slide rod (15) is fixedly connected to the top of the pump housing (1), and a top plate (11) is fixedly connected to the top of the slide rod (15). The pump housing (1) is fixedly connected to the inside of the filter tank sliding seat (2), and the filter tank mounting seat (4) slides inside the filter tank sliding seat (2); The top of the filter tank mounting base (4) is fixedly connected to a sliding connecting block (14), and one end of the sliding connecting block (14) slides on the outer wall of the slide rod (15). The cross-section of the deceleration block (8) is trapezoidal, and the top of the deceleration block (8) is not closed; The top plate (11) has a limiting hole (16) at its top end. The top end of the sliding connecting block (14) below the limiting hole (16) is rotatably connected to a limiting rod (13). The cross section of the limiting rod (13) is smaller than the cross section of the limiting hole (16). The top end of the sliding connecting block (14) is fixedly connected to a movable rod (10), and a return spring (12) is sleeved on the outside of the movable rod (10). The top end of the return spring (12) is fixedly connected to the bottom end of the top plate (11), and the movable rod (10) is slidably connected to one side of the top plate (11).
2. The self-priming discharge pump for use in a chemical neutralization tank according to claim 1, characterized in that: The cross-section of the deceleration block (8) is trapezoidal, and the top of the deceleration block (8) is not closed.
Citation Information
Patent Citations
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