Pressure-resistant and corrosion-resistant fluid pulse rectifier with adjustable filtering cavity, multi-channel fluid pulse rectifier and pump

Abstract

The utility model discloses a pressure-resistant and corrosion-resistant fluid pulse rectifier with an adjustable filtering cavity, a multi-channel fluid pulse rectifier and a pump, which are characterized in that a rectification base is arranged in a pressurizing base, and a buffer cavity is arranged in the center of the pressurizing base; the fluid input end and the fluid output end are communicated with the buffering cavity through the fluid channel, and the pulse buffering film is matched with the filtering cover and the buffering film fixing ring in a positioning and clamping mode through the buffering film positioning groove. The air pressure of the filter cavity is adjusted through the filter cavity pressure adjusting valve, the problem of rectification failure caused by the elastic limit of the pulse buffer film under the high-pressure working condition is solved, high-pressure resistance and corrosion resistance are achieved through double-material combination, and the array multi-channel structure can reduce the installation space and reduce the cost.

Description

Technical Field:

[0001] The utility model relates to the technical field of fluid pulse rectification, and more specifically to a fluid pulse rectifier with a pressure-resistant, corrosion-resistant and adjustable filtering cavity. Technical Background:

[0002] In the technical field of fluid pulse rectification, there are various forms of fluid pulse rectifiers, dampers and buffers, which have the same functions and uses, but are characterized by large volume, small pressure application range or cumbersome adjustment.

[0003] Chinese Patent Application No. CN20172172481.4 discloses a fluid pulse rectifier. The utility model provides a fluid pulse rectifier that can effectively control the amplitude of water flow pulses, but its structural characteristics are not suitable for working in conditions with relatively high fluid pressure. Especially when the amplitude of fluid pressure change is relatively wide, the adaptability of this pulse rectifier is relatively cumbersome to debug for ordinary technicians.

[0004] At the same time, the air compensation mechanisms and methods of existing fluid pulse rectifiers are complex in technology and high in cost, which is not conducive to industrial application. Especially in fluid conditions with high corrosion and high toxicity, their adaptability and safety are not good. Summary of the Utility Model:

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a fluid pulse rectifier with adjustable breathing holes, high pressure resistance and corrosion resistance. The fluid pulse rectifier is characterized in that the fluid pulse rectifier consists of a booster base 1 embedded with a rectifier base 3. A buffer cavity 36 is arranged at the center of the rectifier base 3. A buffer wing 33, a left rectifier wing 34 and a right rectifier wing 35 are arranged in the buffer cavity 36. The buffer cavity 36 is provided with a fluid input end 31 and a fluid output end 32. The fluid input end 31 and the fluid output end 32 are communicated with the buffer cavity 36 through a fluid channel 38. A buffer membrane positioning groove 37 is arranged on the outer edge of the buffer cavity 36. A pulse buffer membrane 5 is tightly fixed by a buffer membrane fixing ring 43 arranged on a filtering cover 4. The filtering cover 4 is provided with a filtering cavity 42. The filtering cavity 42 is provided with a filtering cavity breathing hole 41. The filtering cover 4 is embedded in a booster filtering cover 2 and is assembled and fixed with the booster base 1 through a housing fixing hole 22 and a fixing bolt 8. A regulating valve screw hole 21 is arranged at the center of the booster filtering cover 2, and a filtering cavity pressure regulating valve 6 is formed through a regulating valve accessory 7.

[0006] In a preferred technical solution, the booster base 1 is made of stainless steel, can be tightly fitted and embedded with the rectifier base 3, and is circumferentially and evenly provided with fixing screw holes.

[0007] In a preferred technical solution, the rectifier base 3 is made of PTFE, PEEK, PPS and ceramic materials.

[0008] Further preferably, under the condition that the fluid properties and pressure resistance are both matched, the pressurizing base 1 and the rectifying base 3 can be integrally formed by combining with one kind of material, and the preferred materials are 316 stainless steel and PEEK.

[0009] In a preferred technical solution, buffer film fixing holes 51 are evenly distributed around the circumference of the pulse buffer film 5. The pulse buffer film 5 is made of elastic rubber, preferably HTV silica gel, FKM fluororubber, and FFKM perfluoroelastomer. Its elastic modulus ranges from 0.5 to 10 MPa, and its thickness ranges from 0.2 to 1.98 mm to meet the pulse buffering requirements under different pressure conditions.

[0010] In a preferred technical solution, fixing through holes 22 are evenly distributed around the circumference of the pressurizing and filtering cover 2.

[0011] Further preferably, under the condition that the fluid properties and pressure resistance are both matched, the pressurizing and filtering cover 2 and the filtering cover 4 can be integrally formed by combining with one kind of material, and the preferred materials are 316 stainless steel and PEEK.

[0012] In a preferred technical solution, the filtering cavity pressure regulating valve 6 is provided with a regulating valve thread 61.

[0013] In an embodiment of specific working conditions, the rectifying base 3, the filtering cover 4, the pulse buffer film 5, and the filtering cavity pressure regulating valve 6 can be assembled and combined to form an array structure, and combined with a multi-channel rectifier base 91 and a multi-channel rectifier upper cover 92 of a multi-channel rectifier to form an array multi-channel fluid pulse rectifier 9.

[0014] A pressure-resistant, corrosion-resistant, adjustable filtering cavity fluid pulse rectifier, a multi-channel fluid pulse rectifier, and a pump provided by the present utility model have the following beneficial effects:

[0015] 1. The innovation of the present utility model lies in that the filtering cavity air pressure is adjusted by the filtering cavity pressure regulating valve 6, which solves the problem that the pressure in the buffer cavity 36 is too high under high-pressure working conditions, causing the elastic limit value of the pulse buffer film 5 to reach the limit, resulting in the failure of the pulse rectifying mechanism, thereby realizing the adaptability and pulse suppression rate under high-pressure working conditions.

[0016] 2. The setting of using two kinds of materials for the rectifying base 3 and the pressurizing base 1 solves the problems of corrosion resistance and high pressure resistance at the same time, broadens the application range of the rectifier, and improves the durability and safety.

[0017] 3. The advantage of the array multi-channel fluid pulse rectifier 9 is that it can reduce the installation space of the equipment and reduce the equipment cost at the same time. Description of the Drawings:

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a perspective view of an embodiment of the fluid pulse rectifier of the present invention.

[0020] Figure 2 It is an exploded view of the fluid pulse rectifier of the present invention.

[0021] Figure 3 It is a perspective view of the rectifying base of the present invention.

[0022] Figure 4 It is a perspective view of the filtering cover of the present invention.

[0023] Figure 5 It is a perspective view of an embodiment of the array multi-channel fluid pulse rectifier of the present invention.

[0024] Reference numerals.

[0025] In the figure, 1 - pressurizing base, 2 - pressurizing and filtering cover, 21 - regulating valve screw hole, 22 - fixing through hole, 3 - rectifying base, 31 - fluid input end, 32 - fluid output end, 33 - buffer wing, 34 - left rectifying wing, 35 - right rectifying wing, 36 - buffer cavity, 37 - buffer film positioning groove, 38 - fluid channel, 4 - filtering cover, 41 - breathing hole of the filtering cavity, 42 - filtering cavity, 43 - buffer film fixing ring, 5 - pulse buffer film, 51 - buffer film fixing hole, 6 - pressure regulating valve of the filtering cavity, 61 - regulating valve thread, 7 - regulating valve accessory, 8 - fixing bolt, 9 - array multi-channel fluid pulse rectifier, 91 - multi-channel rectifier base, 92 - multi-channel rectifier upper cover. Specific embodiments:

[0026] The following will further describe the specific embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and do not limit the scope of the present invention.

[0027] Preferred Embodiment 1.

[0028] As Figure 1 、 2As shown in the figure, the pressure-resistant, corrosion-resistant and adjustable filter chamber fluid pulse rectifier includes: a boosting base 1, a rectifying base 3, a pulse buffer membrane 5, a filter cover 4, a boosting filter cover 2, a regulating valve accessory 7, a filter chamber pressure regulating valve 6, and fixing bolts 8.

[0029] As Figure 2 shown, the rectifying base 3 is tightly fitted inside the boosting base 1, and fixing screw holes are evenly distributed around the circumference of the boosting base 1.

[0030] As Figure 3 shown, a buffer chamber is provided in the center of the rectifying base 3, buffer wings and left and right rectifying wings are provided in the buffer chamber, a fluid input end and a fluid output end are provided at both ends of the chamber, and are communicated with the buffer chamber through a fluid channel, and a buffer membrane positioning groove is provided on the outer edge of the buffer chamber.

[0031] As Figure 4 shown, the filter cover 4 is provided with a filter chamber, filter chamber breathing holes are evenly distributed around the circumference of the filter chamber and are communicated with the filter chamber, and a buffer membrane fixing ring is provided on the outer edge of the filter chamber for positioning and fixing the pulse buffer membrane on the rectifying base.

[0032] The filter cover 4 is embedded in the boosting filter cover 2. The buffer chamber of the rectifying base is in direct contact with the fluid, and is preferably made of PTFE, PEEK, PPS and ceramic materials to achieve the corrosion-resistant characteristics. These materials also have the advantages of high temperature resistance, but these materials also have disadvantages such as poor mechanical strength and being fragile. After being embedded in the stainless steel boosting filter cover 2, the deficiencies of the materials are overcome, and while retaining their advantages, they also have the characteristics of high pressure resistance.

[0033] As Figure 2 shown, a regulating valve screw hole 21 is provided in the center of the boosting filter cover 2 for assembling and cooperating with the filter chamber pressure regulating valve 6 and the regulating valve accessory 7. By adjusting the filter chamber pressure regulating valve clockwise or counterclockwise, the pressure applied to the regulating valve accessory is changed. The regulating valve accessory is in a circular ring structure, and its size is adapted to the filter chamber breathing hole 41. At this time, the pressure applied to the regulating valve accessory determines the pressure in the filter chamber body. By adjusting the filter chamber pressure regulating valve 6, the pulse amplitude of the fluid at the fluid output end 32 is changed and reaches an ideal state. The fluid pulse rectifier described in the present utility model can be applied to a pump, and the pump realizes the pulse buffering function by installing the above fluid pulse rectifier.

[0034] Preferred Embodiment 2.

[0035] As Figure 5As shown, in the embodiment of specific working conditions, the rectifying base 3, the filtering cover 4, the pulse buffer membrane 5, and the filtering cavity pressure regulating valve 6 can be arranged in an array structure and combined with the multi-channel rectifier base 91 and the multi-channel rectifier upper cover 92 to form an array multi-channel fluid pulse rectifier 9. The fluid input end 31 and the fluid output end 32 can select different types of pipeline connectors according to the pipeline matching state, enhancing the adaptability and convenience of the multi-channel fluid pulse rectifier in various working condition environments.

[0036] As Figure 5 shown, the wave cavity pressure regulating valves 6 distributed in an array can individually adjust the air pressure in the filtering cavity of each channel, and the fluids in each channel do not interfere with each other, which is especially suitable for multi-channel fluid transportation occasions.

[0037] The above has made detailed descriptions and disclosures of the preferred specific embodiments and examples of the present utility model in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments and examples. Those skilled in the art will understand that various changes and settings can be made without departing from the concept of the present utility model and can be implemented in various ways without exceeding the scope described in the claims of the present invention.

Claims

1. A pressure-resistant, corrosion-resistant and adjustable filter cavity fluid pulse rectifier, characterized in that: The supercharging base (1) is internally provided with a rectifying base (3). A buffer cavity (36) is arranged at the center of the rectifying base (3). A buffer wing (33), a left rectifying wing (34) and a right rectifying wing (35) are arranged in the buffer cavity (36). The buffer cavity (36) is provided with a fluid input end (31) and a fluid output end (32). The fluid input end (31) and the fluid output end (32) are respectively communicated with the buffer cavity (36) through fluid channels (38). A buffer film positioning groove (37) is arranged on the outer edge of the buffer cavity (36). The pulse buffer film (5) is positioned and clamped with the filtering cover (4) and the buffer film fixing ring (43) through the buffer film positioning groove (37). The filtering cover (4) is provided with a filtering cavity (42). A supercharging filtering cover (2) is nested outside the filtering cover (4). Filtering cavity breathing holes (41) are evenly distributed around the filtering cavity (42) and are communicated with the filtering cavity (42).

2. The pressure-resistant, corrosion-resistant, adjustable filter cavity fluid pulse rectifier according to claim 1, wherein: The rectifying base (3) is embedded in the supercharging base (1) or is integrally formed with the supercharging base (1).

3. The pressure-resistant, corrosion-resistant, adjustable filter cavity fluid pulse rectifier according to claim 1, characterized in that: The pulse buffer film (5) is made of elastic rubber with a thickness range of 0.2 - 1.98 mm.

4. The pressure-resistant, corrosion-resistant, adjustable filter cavity fluid pulse rectifier according to claim 1, wherein: The number of the filtering cavity breathing holes (41) in the filtering cover (4) is 1 - 10, and the effective diameter of the filtering cavity breathing holes (41) is 0.5 - 1.8 mm.

5. The pressure-resistant, corrosion-resistant, adjustable filtering cavity fluid pulse rectifier according to claim 4, characterized in that: The filtering cover (4) is embedded in the supercharging filtering cover (2) or is integrally formed with the supercharging filtering cover (2).

6. The pressure-resistant, corrosion-resistant and adjustable filter cavity fluid pulse rectifier according to claim 5, wherein: A regulating valve screw hole (21), a regulating valve accessory (7) and a filtering cavity pressure regulating valve (6) which is matched with the regulating valve screw hole (21) are arranged at the center of the supercharging filtering cover (2).

7. A multi-channel fluid pulse rectifier, characterized in that: Use the pressure-resistant, corrosion-resistant and adjustable filtering cavity fluid pulse rectifier according to any one of claims 1 - 5.

8. A pump, characterized in that, Use the pressure-resistant, corrosion-resistant and adjustable filtering cavity fluid pulse rectifier according to any one of the above claims 1 - 5.

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