A flow stabilizing device for a diaphragm compressor

Abstract

The present invention discloses a flow stabilizing device for a diaphragm compressor, which belongs to the technical field of flow stabilizing devices for filling pipelines of diaphragm compressors. The air inlet of the diaphragm compressor body is connected to an air inlet pipe, and a buffer assembly is provided at the air inlet pipe. The buffer assembly includes an inflatable airbag and a buffer gas tank. The two ends of the air inlet pipe are connected to the air inlet of the diaphragm compressor body and the buffer gas tank. The inflatable airbag is sleeved on the surface of the air inlet pipe, and the two ends of the inflatable airbag contact the surface of the air inlet and the buffer gas tank after being inflated. The present invention utilizes the deformation of the inflatable airbag to buffer the vibration of the air inlet pipe, and the inflatable airbag wraps the air inlet pipe in all directions, which can prevent the external temperature from affecting the gas inside the air inlet pipe, reduce the air pressure inside the air inlet pipe affected by temperature changes as much as possible, reduce the amplitude of the air inlet pipe affected by external factors, and achieve stable delivery of pressurized gas.

Description

Technical Field

[0001] The invention belongs to the technical field of flow stabilizing devices for filling pipelines of diaphragm compressors, and in particular relates to a flow stabilizing device for a diaphragm compressor. Background Art

[0002] The diaphragm compressor uses the reciprocating motion of the piston to change the volume of the diaphragm through hydraulic oil to achieve pressurized gas filling. During this periodic reciprocating process of intake and exhaust, the high-pressure airflow of the filling inevitably has a pulsation effect, which brings operational instability to the filling process, brings certain periodic vibrations to the filling pipeline, and produces a certain fatigue effect due to pressure fluctuations.

[0003] In the existing patent application number 202122908398.7, the utility model patent named A flow stabilizing device for pressurized filling of a hydrogen diaphragm compressor mentions the use of a fixed structure that only moves up and down to reduce the shock of the filling pipeline. However, the filling gas is generally affected by temperature, causing the air pressure inside the filling pipeline to change, and the corresponding vibration amplitude of the filling pipeline is also different. However, the above patent will still cause the filling pipeline to move up and down, and the amplitude still exists, which cannot achieve the effect of sufficient shock absorption. Summary of the Invention

[0004] The purpose of the present invention is to provide a flow stabilizing device for a diaphragm compressor to solve the problem mentioned in the utility model patent of the above-mentioned existing flow stabilizing device that uses a fixed structure that only moves up and down to reduce the shock of the filling pipeline. However, the filling gas is generally affected by temperature, causing the air pressure inside the filling pipeline to change, and the corresponding vibration amplitude of the filling pipeline is also different. However, the above-mentioned patent still causes the filling pipeline to move up and down, and the amplitude still exists, and the shock absorption effect cannot be fully achieved.

[0005] A flow stabilizing device for a diaphragm compressor comprises a diaphragm compressor body, the air inlet of the diaphragm compressor body being connected to an air inlet pipe, a buffer assembly being provided at the air inlet pipe, the buffer assembly comprising an inflatable airbag and a buffer gas tank, both ends of the air inlet pipe being connected to the air inlet of the diaphragm compressor body and the buffer gas tank, the inflatable airbag being sleeved on the surface of the air inlet pipe and both ends of the inflatable airbag being in contact with the surface of the air inlet and the buffer gas tank after being inflated.

[0006] Preferably, the buffer assembly also includes a fixing seat, a through hole and a buffer bellows. The buffer gas tank is arranged relative to the diaphragm compressor body and the fixing seat is fixedly arranged between the buffer gas tank and the air intake pipe. A through hole is opened in the middle of the fixing seat and the inflatable airbag is coaxially arranged in the through hole. After the inflatable airbag is inflated, it is wrapped around the surface of the air intake pipe. The buffer bellows are symmetrically arranged on both sides of the fixing seat. The end of the buffer bellows is fixedly connected to a pressure plate and the pressure plate and the fixing seat are slidably connected by means of a sliding rod. The end of the inflatable airbag is fixedly connected to the end of the buffer bellows. After the inflatable airbag is inflated, its end extends out of the fixing seat and drives the pressure plate at the end of the buffer bellows to press on the buffer gas tank and the air inlet.

[0007] Preferably, a resistance plate is fixedly connected to the air outlet of the buffer gas tank and the air inlet of the diaphragm compressor body. The resistance plate corresponds to the pressure plate. After the inflatable airbag is inflated, it drives the pressure plate to press on the surface of the resistance plate. The surfaces of the resistance plate and the pressure plate are both provided with shock-absorbing pads.

[0008] Preferably, sliding holes are opened at the corners of the fixing seat, the sliding rod is slidably connected in the sliding hole, the end of the sliding rod is fixedly connected to a pressure plate, and the outer wall of the buffer bellows is in contact with the sliding rod.

[0009] Preferably, the bottom of the diaphragm compressor body is fixedly connected to a base, an air pump is provided on the base, an inflation port is provided in the middle of the fixed seat, the inflation port is connected to the inflatable airbag and a control switch of the air pump is provided on the fixed seat, and the air outlet of the air pump is connected to the inflation port by means of an inflation pipeline.

[0010] Preferably, the air outlet of the diaphragm compressor body is connected to an air outlet pipe and the buffer assembly is also provided at the air outlet pipe. A support seat is fixedly connected to the base, and the top of the support seat is fixedly connected to the fixed seat by means of a support rod.

[0011] The present invention has the following advantages:

[0012] Before filling the gas, connect the two ends of the intake pipe to the buffer gas tank and the air inlet of the diaphragm compressor body respectively. First, inflate the inflatable airbag. The inflatable airbag expands and its volume becomes larger. The inflatable airbag has a ring structure. After it is inflated, the inner wall of the inflatable airbag hits the surface of the intake pipe. The intake pipe vibrates, which causes the inflatable airbag to deform. The deformation of the inflatable airbag absorbs the vibration of the intake pipe, which can reduce the amplitude of the intake pipe. On the other hand, when the inflatable airbag is inflated, its two ends will also expand outward. Open, and at the same time push the pressure plate to move to the outside of the fixed seat, so that the buffer bellows can extend outward, and at the same time push the pressure plate to press on the buffer gas tank and the air inlet, reduce the fatigue effect, and the inflatable airbag will completely cover the surface of the intake pipe when it is inflated. The inflatable airbag is equivalent to a closed air bubble, which can avoid the outside temperature from affecting the gas inside the intake pipe, reduce the air pressure inside the intake pipe affected by temperature changes as much as possible, and reduce the amplitude of the intake pipe affected by external factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 A top view of the present invention;

[0015] Figure 3 It is a structural schematic diagram of the buffer assembly of the present invention;

[0016] Figure 4 Schematic diagram of the internal structure of the buffer assembly of the present invention;

[0017] Reference numerals in the figures: 1, diaphragm compressor body; 10, air inlet pipe; 11, air outlet pipe; 12, air inlet; 13, air outlet; 14, contact plate; 15, base; 16, air pump; 17, inflation pipe;

[0018] 2. Buffer assembly; 20. Fixing seat; 21. Support rod; 22. Support seat; 23. Through hole; 24. Inflatable airbag; 25. Buffer bellows; 26. Press plate; 27. Slide rod; 28. Slide hole; 29. ​​Buffer gas tank; DETAILED DESCRIPTION

[0019] The specific implementation methods of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0020] like Figure 1-4As shown, the present invention provides a flow stabilizing device for a diaphragm compressor, comprising a diaphragm compressor body 1, wherein the air inlet 12 of the diaphragm compressor body 1 is connected to an air inlet pipe 10, and a buffer component 2 is provided at the air inlet pipe 10, wherein the buffer component 2 comprises an inflatable airbag 24 and a buffer gas tank 29, and both ends of the air inlet pipe 10 are connected to the air inlet 12 of the diaphragm compressor body 1 and the buffer gas tank 29, and the inflatable airbag 24 is sleeved on the surface of the air inlet pipe 10 and both ends of the inflatable airbag 24 are in contact with the surface of the air inlet 12 and the buffer gas tank 29 after being inflated.

[0021] The buffer assembly 2 also includes a fixed seat 20, a through hole 23 and a buffer bellows 25. The buffer gas tank 29 is arranged relative to the diaphragm compressor body 1 and the fixed seat 20 is fixedly arranged between the buffer gas tank 29 and the intake pipe 10. A through hole 23 is opened in the middle of the fixed seat 20 and the inflatable airbag 24 is coaxially arranged in the through hole 23. After the inflatable airbag 24 is inflated, it wraps around the surface of the intake pipe 10. The buffer bellows 25 are symmetrically arranged on both sides of the fixed seat 20. The end of the buffer bellows 25 is fixedly connected to a pressure plate 26 and the pressure plate 26 and the fixed seat 20 are slidably connected by means of a sliding rod 27. The end of the inflatable airbag 24 is fixedly connected to the end of the buffer bellows 25. After the inflatable airbag 24 is inflated, its end extends out of the fixed seat 20 and drives the pressure plate 26 at the end of the buffer bellows 25 to press on the buffer gas tank 29 and the air inlet 12.

[0022] Before filling the gas, the two ends of the intake pipe 10 are respectively connected to the buffer gas tank 29 and the air inlet of the diaphragm compressor body 1. The two can be connected by bolts and flanges. There are many ways to connect the pipes, and the present invention does not make too many restrictions. When filling the gas, the inflatable airbag 24 is first inflated. The inflatable airbag 24 is inflated and expanded, and its volume will become larger. The inflatable airbag 24 is annular in structure. After it is inflated, the inner wall of the inflatable airbag 24 contacts the surface of the intake pipe 10, and the intake pipe 10 vibrates, which will cause the inflatable airbag 24 to deform. The deformation of the inflatable airbag 24 absorbs the vibration of the intake pipe 10, which can reduce the amplitude of the intake pipe 10. On the other hand, when the inflatable airbag 24 is inflated, its two ends will also expand outward, and at the same time push the pressure plate 26 toward the fixed seat. 20 moves externally so that the buffer bellows 25 can extend outward, and at the same time, the pressure plate 26 is pushed to press on the buffer gas tank 29 and the air inlet 12, so that the end of the inflatable airbag 24 will also be wrapped around the buffer gas tank 29 and the air inlet 12. The inflatable airbag 24 can also be used to reduce the shock of the gas inlet and reduce the fatigue effect. The inflatable airbag 24 will completely cover the surface of the intake pipe 10 when it is inflated. The inflatable airbag 24 is equivalent to a closed air bubble. Most of the current thermal insulation materials use closed air bubbles to achieve excellent thermal insulation effects, which can avoid the outside temperature from affecting the gas inside the intake pipe 10, reduce the air pressure inside the intake pipe 10 affected by temperature changes as much as possible, and reduce the amplitude of the intake pipe 10 affected by external factors.

[0023] A resistance plate 14 is fixedly connected to the air outlet of the buffer gas tank 29 and the air inlet 12 of the diaphragm compressor body 1. The resistance plate 14 corresponds to the pressure plate 26. After the inflatable airbag 24 is inflated, it drives the pressure plate 26 to press on the surface of the resistance plate 14. Shock-absorbing pads are provided on the surfaces of the resistance plate 14 and the pressure plate 26.

[0024] The pressure plate 26 moves outward as the inflatable airbag 24 opens, thereby pressing the pressure plate 26 against the surface of the resistance plate 14 . This can keep the position of the pressure plate 26 stable during filling, prevent it from vibrating up and down, and enhance the stability of the intake duct 10 .

[0025] The corners of the fixing seat 20 are all provided with sliding holes 28 , the sliding rod 27 is slidably connected in the sliding hole 28 , the end of the sliding rod 27 is fixedly connected to the pressure plate 26 , and the outer wall of the buffer bellows 25 is in contact with the sliding rod 27 .

[0026] The sliding rod 27 is slidably connected to the sliding hole 28. The movement direction of the sliding rod 27 can only be horizontal, so the movement direction of the pressure plate 26 is also horizontal, which can limit the movement direction of the pressure plate 26. The outer wall of the buffer bellows 25 is in contact with the sliding rod 27. If the air intake pipe 10 vibrates, the vibration can be prevented from being transmitted to the buffer bellows 25 with the help of the inflatable airbag 24. The sliding rod 27 is used to limit the vibration amplitude of the buffer bellows 25, thereby reducing the vibration amplitude of the entire device.

[0027] The bottom of the diaphragm compressor body 1 is fixedly connected to a base 15, on which an air pump 16 is provided. An inflation port is provided in the middle of the fixing seat 20, which is connected to the inflation airbag 24. A control switch for the air pump 16 is provided on the fixing seat 20. The air outlet of the air pump 16 is connected to the inflation port via an inflation line 17. The air outlet of the diaphragm compressor body 1 is connected to an air outlet pipe 11, and the air outlet pipe 11 is also provided with the buffer assembly 2. A support seat 22 is fixedly connected to the base 15, and the top of the support seat 22 is fixedly connected to the fixing seat 20 via a support rod 21.

[0028] The support base 22 is fixedly connected to the base 15, which can effectively fix the fixing base 20 to prevent it from vibrating up and down, strengthen the stability of the air inlet pipe 10 and the air outlet pipe 11, and avoid excessive fatigue and looseness at the air inlet 12 and the air outlet 13 of the diaphragm compressor body 1. The air outlet pipe 11 is also provided with a buffer component 2 to reduce the amplitude of the air outlet pipe 11. An air pump 16 is provided on the base 15, and the air pump 16 is used to inject air into the inflatable airbag 24.

[0029] Working principle: Before filling the gas, the two ends of the intake pipe 10 are respectively connected to the buffer gas tank 29 and the air inlet of the diaphragm compressor body 1. The two can be connected by bolts and flanges. There are many ways to connect the pipes, and the present invention does not make too many restrictions. When filling the gas, the inflatable airbag 24 is first inflated. The inflatable airbag 24 is inflated and expanded, and its volume will become larger. The inflatable airbag 24 is annular in structure. After it is inflated, the inner wall of the inflatable airbag 24 contacts the surface of the intake pipe 10, and the intake pipe 10 vibrates, which will cause the inflatable airbag 24 to deform. The deformation of the inflatable airbag 24 absorbs the vibration of the intake pipe 10, which can reduce the amplitude of the intake pipe 10. On the other hand, when the inflatable airbag 24 is inflated, its two ends will also expand outward, and at the same time push the pressure plate 26 toward the solid The fixed seat 20 moves outward so that the buffer bellows 25 can extend outward, and at the same time, the pressure plate 26 is pushed to press on the buffer gas tank 29 and the air inlet 12, so that the end of the inflatable airbag 24 will also be wrapped around the buffer gas tank 29 and the air inlet 12. The inflatable airbag 24 can also be used to reduce the shock of the gas inlet and reduce the fatigue effect. The inflatable airbag 24 will completely cover the surface of the intake pipe 10 when it is inflated. The inflatable airbag 24 is equivalent to a closed air bubble. Most of the current thermal insulation materials use closed air bubbles to achieve excellent thermal insulation effects, which can avoid the outside temperature from affecting the gas inside the intake pipe 10, reduce the air pressure inside the intake pipe 10 affected by temperature changes as much as possible, and reduce the amplitude of the intake pipe 10 affected by external factors.

[0030] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the inventive concept and technical solution of the present invention, or the inventive concept and technical solution are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A flow stabilizing device for a diaphragm compressor, comprising a diaphragm compressor body (1), an air inlet (12) of the diaphragm compressor body (1) being connected to an air inlet pipe (10), a buffer assembly (2) being provided at the air inlet pipe (10), and characterized in that: The buffer assembly (2) includes an inflatable airbag (24) and a buffer gas tank (29); the two ends of the air intake pipe (10) are connected to the air intake port (12) of the diaphragm compressor body (1) and the buffer gas tank (29); the inflatable airbag (24) is sleeved on the surface of the air intake pipe (10); and the two ends of the inflatable airbag (24) contact the surfaces of the air intake port (12) and the buffer gas tank (29) after being inflated; The buffer assembly (2) further comprises a fixing seat (20), a through hole (23) and a buffer bellows (25), the buffer gas tank (29) is arranged relative to the diaphragm compressor body (1) and the fixing seat (20) is fixedly provided between the buffer gas tank (29) and the intake pipe (10), a through hole (23) is provided in the middle of the fixing seat (20) and the inflatable airbag (24) is coaxially provided in the through hole (23), the inflatable airbag (24) is wrapped around the surface of the intake pipe (10) after being inflated, the buffer bellows (25) are symmetrically provided on both sides of the fixing seat (20), the end of the buffer bellows (25) is fixedly connected to a pressure plate (26) and a pressure plate (26) is provided between the fixing seat (20). With the aid of a sliding connection of a slide rod (27), the end of the inflatable airbag (24) is fixedly connected to the end of the buffer bellows (25). After the inflatable airbag (24) is inflated, its end extends out of the fixed seat (20) and drives the pressure plate (26) at the end of the buffer bellows (25) to press on the buffer gas tank (29) and the air inlet (12); the air outlet of the buffer gas tank (29) and the air inlet (12) of the diaphragm compressor body (1) are both fixedly connected with a contact plate (14), the contact plate (14) corresponds to the pressure plate (26), and after the inflatable airbag (24) is inflated, the pressure plate (26) is driven to press on the surface of the contact plate (14), and the surfaces of the contact plate (14) and the pressure plate (26) are both provided with shock-absorbing pads; The corners of the fixing seat (20) are all provided with sliding holes (28), the sliding rod (27) is slidably connected in the sliding hole (28), the end of the sliding rod (27) is fixedly connected to the pressure plate (26), and the outer wall of the buffer bellows (25) is in contact with the sliding rod (27).

2. A flow stabilizing device for a diaphragm compressor according to claim 1, characterized in that: The bottom of the diaphragm compressor body (1) is fixedly connected to a base (15), an air pump (16) is provided on the base (15), an inflation port is provided in the middle of the fixed seat (20), the inflation port is connected to the inflation airbag (24), and a control switch of the air pump (16) is provided on the fixed seat (20), and the air outlet of the air pump (16) is connected to the inflation port by means of an inflation pipeline (17).

3. A flow stabilizing device for a diaphragm compressor according to claim 2, characterized in that: The air outlet of the diaphragm compressor body (1) is connected to an air outlet pipe (11), and the air outlet pipe (11) is also provided with the buffer assembly (2). A support seat (22) is fixedly connected to the base (15), and the top of the support seat (22) is fixedly connected to the fixed seat (20) by means of a support rod (21).

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