CN215927680U

CN215927680U - Pulse damper

Info

Publication number: CN215927680U
Application number: CN202121722338.XU
Authority: CN
Inventors: 夏海
Original assignee: Tianjin High Lem Technology Co ltd
Current assignee: Tianjin High Lem Technology Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-03-01
Anticipated expiration: 2031-07-28

Abstract

The utility model provides a pulse damper which comprises an end cover, an elastic rubber body, a reinforced metal disc, a pressure-resistant body and a fluid connecting piece, wherein an opening of the elastic rubber body is clamped at the bottom of the end cover, the end cover is fixedly connected with one end of the pressure-resistant body in a threaded manner, the other end of the pressure-resistant body is fixedly connected with the fluid connecting piece in a threaded manner, the reinforced metal disc is fixedly arranged at the bottom of the elastic rubber body, and the reinforced metal disc is arranged in the pressure-resistant body in a sliding manner. When the pressure-resistant rubber body is used, the fluid connecting piece is arranged on the corresponding pipeline, so that fluid enters the pressure-resistant body through the fluid connecting piece and is in contact with the reinforced metal disc, and pulse load generated in the fluid is absorbed by the elastic rubber body through the reinforced metal disc, so that the pressure control and the stability of fluid conveying are improved. The utility model has simple structure and reliable function, is suitable for being applied to the working conditions of high pressure, large flow and complex physical and chemical properties, and can prolong the fatigue cycle of rubber materials, thereby obviously prolonging the service life of the damper.

Description

Pulse damper

Technical Field

The embodiment of the utility model relates to the technical field of fluid mechanical accessories, in particular to a pulse damper.

Background

Metering pumps, piston pumps and plunger pumps are often used in production activities, and in order to ensure the purposes of accurate metering, accurate pressure control, accurate fluid conveying capacity and the like of a working system, the pressure fluctuation of working liquid of the metering pumps, the piston pumps and the plunger pumps which are installed in a liquid pipeline needs to be absorbed through pulse dampers, so that the oppression of the fluid on the pipeline is effectively relieved, and the effects of protecting downstream instruments and equipment, increasing the volumetric efficiency of the pumps and the like are achieved. The requirements for the pulse damper are correspondingly improved along with the development of production movable liquid to the direction of high pressure, large flow and complex physical and chemical properties, and the biggest problem of the damper at present is that the pulse damper is repeatedly impacted by fluid pressure pulses, and the internal material of the pulse damper is fatigued and loses efficacy.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a pulse damper to solve the problem of failure caused by fatigue of internal materials of the damper in the prior art.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

the utility model provides a pulse damper which comprises an end cover, an elastic rubber body, a reinforced metal disc, a compression-resistant body and a fluid connecting piece, wherein an opening of the elastic rubber body is clamped at the bottom of the end cover, the end cover is fixedly connected with one end of the compression-resistant body in a threaded manner, the other end of the compression-resistant body is fixedly connected with the fluid connecting piece in a threaded manner, the reinforced metal disc is fixedly arranged at the bottom of the elastic rubber body, and the reinforced metal disc is arranged in the compression-resistant body in a sliding manner.

Further, the end cover includes leak protection cap, inflation valve, sealing plug, locking bolt and sealing washer, resistance to compression body one end spiro union is fixed with the sealing plug, just the sealing plug passes through locking bolt and resists compression body lock and die, sealing plug center department is provided with the inflation valve, inflation valve outside spiro union is fixed with the leak protection cap, the leak protection cap is located the sealing plug top, the fixed sealing washer that is provided with in sealing plug bottom, the sealing washer dies fixedly with the card of elastic rubber body opening part.

Further, the resistance to compression body includes first screw, chamfer, inner chamber and second screw, sealing plug and first screw spiro union, the one end intercommunication of first screw and inner chamber, the other end and the second screw intercommunication of inner chamber, the inner chamber with the junction of first screw is provided with the chamfer, the junction of inner chamber and second screw is provided with the chamfer.

Furthermore, the elastic rubber body is abutted against the inner wall of the inner cavity.

Further, fixed fluid connection spare includes centre bore, nipple, fixed stopper and fastening screw, the second screw thread mouth spiro union is fixed with fixed stopper, fixed stopper center department is provided with the centre bore, the spiro union is fixed with the nipple in the centre bore, fixed stopper tip is provided with fixed stopper.

Furthermore, the pressure-resistant body is made of stainless steel.

Furthermore, the sealing plug and the fixing plug are made of copper alloy.

Further, the elastic rubber body is a hollow capsule body.

The embodiment of the utility model has the following advantages:

the existing pulse damper is mostly in the form of a non-metal spring type, a diaphragm isolation type and the like, cannot be applied under the working conditions of high pressure, large flow and complex physical and chemical properties, and compared with the prior art, the technical scheme adopts a high-strength stainless steel material, so that the pressure resistance is improved, the pulse damper is also suitable for various fluids with physical and chemical properties, and the corrosion resistance is excellent. And through the design of different structural style and interface, satisfy the flow requirement of specific operating mode, make the service pressure range of pulse damper improve 2000 to 15000p, the life-span of attenuator prolongs more than 50 times, adopts the elastic rubber body as liquid gas isolation original paper simultaneously to utilize the enhancement metal disc to avoid the elastic rubber body to excessively warp, effectively alleviated the material fatigue and the problem that became invalid.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a cross-sectional view of a pulse dampener provided in accordance with the present invention;

FIG. 2 is a sectional view of a compression-resistant body of a pulse damper provided in the present invention;

FIG. 3 is a cross-sectional view of a fluid coupling of a pulse dampener provided in accordance with the present invention;

FIG. 4 is a cross-sectional view of an end cap of a pulse damper provided in accordance with the present invention;

in the figure: 1, end cover; 11 a leak-proof cap; 12 an inflation valve; 13 sealing plug; 14 locking the bolt; 15, sealing rings; 2 an elastic rubber body; 3 reinforcing the metal disc; 4, a compression-resistant body; 41 a first screw; chamfering 42; 43 inner cavity; 44 second screw thread; 5 a fluid connection; 51 a central hole; a 52 nozzle; 53 fixing the plug; 54 to tighten the screws.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a pulse damper, which comprises an end cover 1, an elastic rubber body 2, a reinforced metal disc 3, a pressure-resistant body 4 and a fluid connecting piece 5, wherein an opening of the elastic rubber body 2 is clamped at the bottom of the end cover 1, so that the connecting strength is improved, and the problem that the elastic rubber body 2 falls off is solved. The end cover 1 is fixed at one end of the pressure-resistant body 4 in a threaded manner, and the elastic rubber body 2 can be filled with gas through the end cover 1 so as to improve the air pressure and realize the damping effect by utilizing the air pressure. The other end of the pressure-resistant body 4 is screwed and fixed with a fluid connecting piece 5, the fluid connecting piece 5 is directly fixed on a corresponding pipeline, so that the fluid on the pipeline is communicated with the fluid connecting piece 5, and the pressure increment is instantly transmitted to each point of the static fluid after any point in the incompressible static fluid is subjected to the pressure increment generated by an external force according to the Pascal law. Therefore, the impulse pressure generated by the fluid of the fluid connector 5 through the fluid connector 5 can be effectively absorbed by the elastic rubber body 2, thereby protecting the pipeline. The bottom of the elastic rubber body 2 is fixedly provided with a reinforced metal disc 3, and the reinforced metal disc 3 is arranged in the pressure-resistant body 4 in a sliding manner, so that the reinforced metal disc 3 is directly contacted with fluid, the deformation of the elastic rubber body 2 under pressure can be effectively reduced, and the problem of fatigue of the elastic rubber body 2 against materials is also solved, so that the service life of the damper is prolonged.

According to a specific embodiment provided by the utility model, the end cover 1 comprises a leakage-proof cap 11, an inflation valve 12, a sealing plug 13, a locking bolt 14 and a sealing ring 15, wherein the sealing plug 13 is fixed at one end of the pressure-resistant body 4 in a threaded manner, an external thread is arranged on the outer side of the sealing plug 13, and the sealing plug 13 is locked with the pressure-resistant body 4 through the locking bolt 14, so that the problem that the sealing plug 13 is loosened can be prevented. An inflation valve 12 is arranged at the center of the sealing plug 13, and a leakage-proof cap 11 is fixed on the outer side of the inflation valve 12 in a threaded mode to prevent inflation leakage. The leakage-proof cap 11 is positioned at the top of the sealing plug 13, the sealing ring 15 is fixedly arranged at the bottom of the sealing plug 13, the sealing ring 15 is clamped and fixed with the opening of the elastic rubber body 2, and the design can prevent the elastic rubber body 2 from falling off while ensuring the air tightness.

According to a specific embodiment of the present invention, the pressure-resistant body 4 includes a first screw 41, a chamfer 42, an inner cavity 43 and a second screw 44, the sealing plug 13 is screwed with the first screw 41, the first screw 41 is communicated with one end of the inner cavity 43, the other end of the inner cavity 43 is communicated with the second screw 44, the chamfer 42 is disposed at a joint of the inner cavity 43 and the first screw 41, and the chamfer 42 is disposed at a joint of the inner cavity 43 and the second screw 44. The chamfer is provided to increase the contact area between the sealing plug 13 and the fixing plug 53 and the inner cavity 43, thereby increasing the compressive strength of the inner cavity 43 and avoiding the failure problems such as pitting defects at the two ends of the inner cavity 43.

According to a particular embodiment of the utility model, said elastic rubber body 2 is in abutment with the inner wall of the cavity 43. Therefore, when the elastic rubber body 2 absorbs the pulse load, the stress deformation of the elastic rubber body 2 can be reduced to the greatest extent, so that the fatigue resistance strength of the elastic rubber body 2 is improved, and the service life of the damper is further prolonged.

According to an embodiment of the present invention, the fixed fluid connector 5 includes a central hole 51, a nipple 52, a fixing plug 53 and a fastening screw 54, the second screw 44 is screwed and fixed with the fixing plug 53, the center of the fixing plug 53 is provided with the central hole 51, the nipple 52 is screwed and fixed in the central hole 51, and the end of the fixing plug 53 is provided with the fixing plug 53. The fluid flows from the central hole 51 into the inner chamber 43 through the nipple 52, so that the fluid comes into contact with the reinforcing metal disc 3, and the pulse load generated in the fluid is absorbed by the elastic rubber body 2 through the reinforcing metal disc 3, thereby functioning to protect the fluid line.

According to an embodiment of the present invention, the material of the pressure-resistant body 4 is stainless steel. The technical advantage that the pressing body 4 is made of stainless steel material lies in that: high pressure resistance, adaptability to large flow of fluid pipelines, corrosion resistance of materials and suitability for complex physical and chemical performance working conditions of different fluids.

According to a specific embodiment of the present invention, the sealing plug 13 and the fixing plug 53 are made of copper alloy, which has good ductility and is corrosion resistant, and is beneficial to further prolonging the service life of the damper.

According to a specific embodiment of the present invention, the elastic rubber body 2 is a hollow bag body, so that the inflation valve 12 can conveniently inject the inert gas into the elastic rubber body 2, thereby improving the elasticity and damping coefficient of the elastic rubber body 2, and further improving the use effect of the damper.

The application process of the embodiment of the utility model is as follows:

the utility model discloses a pulse damper, which is characterized in that when in specific use, a fixed plug 53 is connected with a corresponding pipeline, so that fluid in the pipeline enters an inner cavity 43 from a connector 52, the fluid is abutted against a reinforced metal disc 3, the load can be absorbed by an elastic rubber body 2 along the reinforced metal disc 3 due to pulse pressure load generated in the fluid, and the elastic rubber body 2 is filled with inert gas through an inflation valve 12, so that the elastic rubber body 2 is elastic to eliminate the pulse pressure load. The damper has the advantages of firm structure and obvious effect, and can effectively relieve the problem of material fatigue, thereby prolonging the service life of the damper.

Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. The utility model provides a pulse damper, its characterized in that, includes end cover (1), the elastic rubber body (2), strengthens metal disc (3), the resistance to compression body (4) and fluid coupling spare (5), the bottom at end cover (1) is established to the opening part card of the elastic rubber body (2), end cover (1) spiro union is fixed in resistance to compression body (4) one end, resistance to compression body (4) other end spiro union fixed fluid coupling spare (5), the fixed enhancement metal disc (3) that is provided with in the elastic rubber body (2) bottom, it slides and sets up in resistance to compression body (4) to strengthen metal disc (3).

2. The pulse damper as claimed in claim 1, wherein the end cap (1) comprises a leakage-proof cap (11), an inflation valve (12), a sealing plug (13), a locking bolt (14) and a sealing ring (15), the sealing plug (13) is fixed to one end of the compression-resistant body (4) in a threaded manner, the sealing plug (13) is locked with the compression-resistant body (4) through the locking bolt (14), the inflation valve (12) is arranged at the center of the sealing plug (13), the leakage-proof cap (11) is fixed to the outer side of the inflation valve (12) in a threaded manner, the leakage-proof cap (11) is located at the top of the sealing plug (13), the sealing ring (15) is fixedly arranged at the bottom of the sealing plug (13), and the sealing ring (15) is fixedly clamped with the opening of the elastic rubber body (2).

3. The pulse damper according to claim 2, wherein the pressure-resistant body (4) comprises a first screw (41), a chamfer (42), an inner cavity (43) and a second screw (44), the sealing plug (13) is in screw connection with the first screw (41), the first screw (41) is communicated with one end of the inner cavity (43), the other end of the inner cavity (43) is communicated with the second screw (44), the chamfer (42) is arranged at the joint of the inner cavity (43) and the first screw (41), and the chamfer (42) is arranged at the joint of the inner cavity (43) and the second screw (44).

4. A pulse damper as claimed in claim 3, characterised in that said elastic rubber body (2) abuts against the inner wall of the inner chamber (43).

5. A pulse damper as claimed in claim 4, characterized in that the fixed fluid connection (5) comprises a central hole (51), a nipple (52), a fixed plug (53) and a fastening screw (54), the second screw (44) is screwed and fixed with the fixed plug (53), the central hole (51) is arranged in the center of the fixed plug (53), the nipple (52) is screwed and fixed in the central hole (51), and the fixed plug (53) is arranged at the end of the fixed plug (53).

6. A pulse damper as claimed in claim 5, characterized in that the pressure-resistant body (4) is made of stainless steel.

7. A pulse damper as claimed in claim 6, characterized in that the sealing plug (13) and the fixing plug (53) are made of copper alloy.

8. A pulse damper as claimed in claim 7, characterized in that said elastic rubber body (2) is a hollow capsule inside.