High-pressure pump with feeding pipe valve plate type one-way valve vibration and noise reduction mechanism

Abstract

The utility model discloses a high-pressure pump with a feeding pipe valve plate type one-way valve vibration and noise reduction mechanism, which comprises a pump body, the pump body comprises a feeding pipe and a discharging pipe, two groups of communicating pipes are arranged between the feeding pipe and the discharging pipe, feeding one-way valves are arranged in the communicating pipes, a noise reduction device is arranged on the feeding pipe between the two groups of communicating pipes, and the noise reduction device comprises a tank body. A notch is formed in the lower end of the tank body and connected with a feeding pipe through an overflowing pipe, a baffle is arranged at the upper end of the overflowing pipe, a fixing hole is formed in the center of the baffle, a plurality of overflowing holes are further formed in the baffle and evenly distributed around the fixing hole, a connecting rod is slidably connected into the fixing hole, and an upper sealing valve plate and a lower sealing valve plate are arranged at the upper end and the lower end of the connecting rod respectively. The lower end of the tank body is provided with a water outlet. The tank body is arranged, air in the tank body is compressed, vibration and noise are reduced, meanwhile, the valve plate structure is arranged, the overflowing hole is blocked, air is prevented from being sucked away when a pump machine works, the service life of noise reduction equipment is guaranteed, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure pumps, and particularly relates to a high-pressure pump with a vibration and noise reduction mechanism for a feed pipe valve plate type check valve. Background Technique

[0002] As Figure 1 shown, during the working process of the existing high-pressure pump, the valve core of the feed check valve on one side is in the open state, and the valve core of the feed check valve on the other side is in the check state. The feed water flow and the check water flow collide and impact with each other in the pipe, which will cause the pipe body to vibrate and generate high-decibel noise of 90 - 95 dB. The conventional methods to solve noise and vibration are to use an accumulator and a water hammer eliminator at the feed end. However, since the material is not water but sewage containing particulate matter, it will cause damage to the inside of the accumulator and the water hammer eliminator, and the use effect cannot be achieved.

[0003] To solve the noise problem, the existing Chinese utility model patent with the application number 202222962562.7 discloses a high-pressure single-feed pump body with a noise reduction device, which realizes noise reduction by setting a tank on the pipeline. However, this method of installing an ordinary pressure stabilizing tank on the pipeline, after running for a period of time, the air in the tank is compressed by the material, and it cannot play the role of shock absorption and noise reduction. The material in the tank can only be discharged manually, which affects the normal operation of production. Content of the Utility Model

[0004] The purpose of the utility model is to provide a vibration and noise reduction mechanism for a valve plate type check valve used in the feed pipe of a high-pressure pump with better noise reduction effect aiming at the deficiencies in the above background technique.

[0005] To achieve the above purpose, a high-pressure pump with a vibration and noise reduction mechanism for a feed pipe valve plate type check valve of the utility model adopts the following technical scheme:

[0006] A high-pressure pump with a vibration and noise reduction mechanism for a feed pipe valve plate type check valve includes a pump body. The pump body includes a feed pipe and a discharge pipe. There are two groups of connecting pipes between the feed pipe and the discharge pipe. A feed check valve is arranged in the connecting pipe. A noise reduction device is arranged on the feed pipe between the two groups of connecting pipes. The noise reduction device includes a tank body. A notch is arranged at the lower end of the tank body. The notch is connected to the feed pipe through a flow-through pipe. A baffle is arranged at the upper end of the flow-through pipe. A fixing hole is arranged in the center of the baffle. A plurality of flow-through holes are also arranged on the baffle. The flow-through holes are evenly arranged around the fixing hole. A connecting rod is slidably connected in the fixing hole. An upper sealing valve plate and a lower sealing valve plate are respectively arranged at the upper and lower ends of the connecting rod. The upper sealing valve plate and the lower sealing valve plate are both used to block the flow-through holes. A drain port is also arranged at the lower end of the tank body.

[0007] A further improvement of the high-pressure pump with a shock-absorbing and noise-reducing mechanism of a feed-pipe valve plate type check valve in the present utility model lies in that a bottom plate is welded to the upper end of the flow-through pipe. The bottom plate is annular, and the bottom plate and the baffle are connected by connecting bolts.

[0008] A further improvement of the high-pressure pump with a shock-absorbing and noise-reducing mechanism of a feed-pipe valve plate type check valve in the present utility model lies in that the lower sealing valve plate is welded to the connecting rod, and the upper sealing valve plate is threadedly connected to the connecting rod.

[0009] A further improvement of the high-pressure pump with a shock-absorbing and noise-reducing mechanism of a feed-pipe valve plate type check valve in the present utility model lies in that a connecting flange is provided at the lower end of the flow-through pipe, a fixed pipe is provided on the feed pipe, a second connecting flange is provided on the fixed pipe, and the connecting flange and the second connecting flange are connected by fasteners.

[0010] A further improvement of the high-pressure pump with a shock-absorbing and noise-reducing mechanism of a feed-pipe valve plate type check valve in the present utility model lies in that the noise-reducing device is arranged at the middle position of the feed pipe between two groups of communicating pipes.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, by providing a tank body, when the pump works, the impact water flow enters the tank body through the flow-through holes, and the air in the upper part of the tank body can play a role in shock absorption and noise reduction. At the same time, when negative pressure is generated during the feeding of the pump, a valve plate structure is also provided to block the upper part of the flow-through holes to prevent air from being sucked away. The use effect of shock absorption and noise reduction is ensured, and the use efficiency of the mechanism is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of a prior high-pressure pump;

[0014] Figure 2 is a schematic structural diagram of the present utility model;

[0015] Figure 3 is a structural view of the noise-reducing device of the present utility model;

[0016] Figure 4 、 Figure 5 are two state diagrams of the noise-reducing device when the pump body of the present utility model works.

[0017] In the figures: 1 pump body, 2 feed pipe, 3 discharge pipe, 4 communicating pipe, 5 feed check valve, 6 noise-reducing device, 7 flow-through pipe, 8 baffle, 9 connecting rod, 10 flow-through hole, 11 upper sealing valve plate, 12 lower sealing valve plate, 13 bottom plate, 14 fixed pipe, 15 drain port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figures 1 to 5 shown, a high-pressure pump with a vibration and noise reduction mechanism for a feed pipe valve plate type one-way valve includes a pump body 1. The pump body includes a feed pipe 2 and a discharge pipe 3. There are two groups of connecting pipes 4 provided between the feed pipe and the discharge pipe. A feed one-way valve 5 is provided in the connecting pipe. A noise reduction device 6 is provided on the feed pipe between the two groups of connecting pipes. Specifically, the noise reduction device includes a tank body. A notch is provided at the lower end of the tank body. The notch is connected to the feed pipe through a flow-through pipe 7. A baffle 8 is provided at the upper end of the flow-through pipe. A fixing hole is provided in the center of the baffle. A plurality of flow-through holes 10 are also provided on the baffle. The flow-through holes are evenly arranged around the fixing hole. The setting of the baffle and the flow-through holes forms a valve body pipe. A connecting rod 9 is slidably connected in the fixing hole. Upper and lower sealing valve plates 11 and 12 are respectively provided at the upper and lower ends of the connecting rod. The upper and lower sealing valve plates are both used to block the flow-through holes. A drain port 15 is also provided at the lower end of the tank body.

[0020] Further, a bottom plate 13 is welded to the upper end of the flow-through pipe. The bottom plate is annular. The bottom plate and the baffle are connected by connecting bolts. The outside of the baffle can be connected to the bottom plate through a connecting plate.

[0021] The lower sealing valve plate is welded to the connecting rod, and the upper sealing valve plate is threadedly connected to the connecting rod.

[0022] Further, a connecting flange is provided at the lower end of the flow-through pipe. A fixing pipe 14 is provided on the feed pipe. A second connecting flange is provided on the fixing pipe. The connecting flange and the second connecting flange are connected by fasteners. The noise reduction device is arranged at the middle position of the feed pipe between the two groups of connecting pipes.

[0023] The working principle of the present utility model is as follows: When the impact water flow material enters the flow-through main pipe, the material pushes the lower sealing valve plate to move upward. During the movement, part of the material enters the tank body through the flow-through holes on the valve body pipe until the lower sealing plate fits with the lower part of the valve body pipe to form a seal. At this time, the material entering the tank body needs to be discharged through the drain port on the tank body (the material in the tank body should not be retained too much, otherwise the air will be compressed and the vibration and noise reduction effect will not be achieved). When the pump body sucks materials, a negative pressure is generated. At this time, the upper and lower sealing valve plates move downward until the upper sealing plate fits with the upper part of the valve body pipe to form a seal, preventing the air in the tank body from being sucked away. It ensures that the mechanism plays a role in vibration and noise reduction during operation. After actual measurement, after adopting this mechanism, the equipment has almost no vibration, and the noise value is reduced from the original 90 - 95 decibels to 80 - 84 decibels.

[0024] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A high-pressure pump with a feed pipe valve plate type one-way valve vibration reduction and noise reduction mechanism, characterized in that: The utility model comprises a pump body, wherein the pump body comprises a feed pipe and a discharge pipe, two groups of connecting pipes are arranged between the feed pipe and the discharge pipe, a feed check valve is arranged in the connecting pipe, a noise reduction device is arranged on the feed pipe between the two groups of connecting pipes, the noise reduction device comprises a tank body, a notch is arranged at the lower end of the tank body, the notch is connected with the feed pipe through a flow pipe, a baffle is arranged at the upper end of the flow pipe, a fixing hole is arranged at the center of the baffle, a plurality of flow holes are also arranged on the baffle, the flow holes are evenly arranged around the fixing hole, a connecting rod is slidably connected in the fixing hole, an upper sealing valve plate and a lower sealing valve plate are respectively arranged at the upper and lower ends of the connecting rod, the upper sealing valve plate and the lower sealing valve plate are both used to block the flow holes, and a drain outlet is also arranged at the lower end of the tank body.

2. A high-pressure pump with a feed pipe valve plate type one-way valve vibration reduction and noise reduction mechanism according to claim 1, characterized in that: A bottom plate is welded to the upper end of the flow pipe, the bottom plate is annular, and the bottom plate is connected to the baffle plate by connecting bolts.

3. A high-pressure pump with a feed pipe valve plate type one-way valve vibration reduction and noise reduction mechanism according to claim 2, characterized in that: The lower sealing valve plate is connected to the connecting rod by welding, and the upper sealing valve plate is connected to the connecting rod by threading.

4. A high-pressure pump with a feed pipe valve plate type one-way valve vibration reduction and noise reduction mechanism according to claim 3, characterized in that: A connecting flange is arranged at the lower end of the flow pipe, a fixing pipe is arranged on the feed pipe, a second connecting flange is arranged on the fixing pipe, and the connecting flange and the second connecting flange are connected by fasteners.

5. A high-pressure pump with a feed pipe valve plate type one-way valve vibration reduction and noise reduction mechanism according to claim 4, characterized in that: The noise reduction device is arranged at the middle position of the feed pipe between the two groups of connecting pipes.

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