CN217873208U - Throttling and pressure reducing device for high-pressure pump - Google Patents
Throttling and pressure reducing device for high-pressure pump Download PDFInfo
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- CN217873208U CN217873208U CN202122773967.1U CN202122773967U CN217873208U CN 217873208 U CN217873208 U CN 217873208U CN 202122773967 U CN202122773967 U CN 202122773967U CN 217873208 U CN217873208 U CN 217873208U
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- throttle
- pressure pump
- throttle plate
- axle sleeve
- high pressure
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Abstract
The throttling pressure reducing device for the high-pressure pump comprises a shell, an outlet penetrating through the shell, a mounting seat arranged in the shell and communicated with a through hole, an inlet arranged at one end of the outlet, a cavity arranged in the mounting seat and communicated with the outlet and the inlet, a throttle plate connected with the inner wall of the cavity in a sliding and sealing manner, an outer shaft sleeve arranged at one side of the throttle plate and connected with the inner wall of the outer shaft sleeve in a sliding and sealing manner, and an elastic piece used for resetting the throttle plate. The utility model discloses make the throttle decompression ability of high-pressure pump adjustable to realize stable play liquid flow and proved bearing lubrication, refrigerated flow demand.
Description
Technical Field
The utility model relates to a high-pressure pump equipment technical field, especially a throttle pressure relief device for high-pressure pump.
Background
The throttling capacity of the existing high-pressure pump is fixed and cannot be adjusted, the existing high-pressure pump is designed according to the working condition of the maximum pressure difference during general design, and when the pump is used at variable frequency and low pressure, the throttling is too large, and the bearing lubrication is insufficient. If the allowance left in the design is large, the leakage backflow amount is large, the unit efficiency is reduced, and the actual requirement cannot be met.
Disclosure of Invention
The utility model aims at providing a throttle pressure relief device for high-pressure pump to solve the problem that proposes in the background art.
The technical solution of the utility model is that: the utility model provides a throttle pressure relief device for high-pressure pump, includes the casing, runs through the export of casing, establish in the casing just with the mount pad of export intercommunication, establish the mount pad is kept away from the entry of export one end, establish in the mount pad and respectively with the export and the cavity of entry intercommunication with cavity inner wall sliding seal connects the throttle plate, establish the throttle plate is kept away from the outer axle sleeve of entry one side, with outer axle sleeve inner wall sliding seal connects the inner shaft sleeve, be used for the elastic component that the throttle plate resets, outer axle sleeve with be formed with first decompression district between the cavity inner wall, outer axle sleeve with be formed with the second decompression district between the inner shaft sleeve inner wall, the symmetry has seted up the intercommunication on the throttle plate the first orifice in first decompression district, set up a plurality of intercommunications on the outer axle sleeve first decompression district with the second orifice in second decompression district.
Preferably, an insertion cavity is formed between the throttle plate and the inlet, a tightening nut is arranged in the insertion cavity, and the inner diameter of the tightening nut is smaller than the length of a central connecting line of the two first throttle holes.
Preferably, a filter is disposed in the inlet and is in communication with the tightening nut, and the filter edge is fixed to the mounting seat by a fixing plate.
Preferably, the second orifices are spaced apart from the throttle plate in the direction of the inner sleeve.
Preferably, the second throttling holes are at least three groups, and the second throttling holes of each group are in the same plane.
Preferably, the plane of each set of the second throttle holes is parallel to the plane of the throttle plate.
Preferably, the elastic member is a spring.
The utility model discloses beneficial effect is:
compared with the prior art, the utility model discloses make the throttle decompression ability of high-pressure pump adjustable to realize stable play liquid flow and proved bearing lubrication, refrigerated flow demand.
Drawings
FIG. 1 is a schematic view of the present invention;
Detailed Description
The present invention will be further described with reference to the following embodiments in conjunction with the accompanying drawings.
The specific embodiments are only for explaining the present invention, and it is not a limitation to the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present invention.
The embodiment, as shown in fig. 1, a throttling pressure reducing device for a high-pressure pump, including a housing 1, a through outlet 101 of the housing 1, a setting in the housing 1 and with an installation seat 2 communicated with the outlet 101, a setting in the installation seat 2 is far away from an inlet 201 of one end of the outlet 101, a setting in the installation seat 2 and respectively with the outlet 101 and a cavity 202 communicated with the inlet 201, and a throttle plate 3 connected with an inner wall of the cavity 202 in a sliding and sealing manner, a setting in the throttle plate 3 is far away from an outer shaft sleeve 4 of one side of the inlet 201, and an inner shaft sleeve 5 connected with an inner wall of the outer shaft sleeve 4 in a sliding and sealing manner, an elastic member 6 used for resetting the throttle plate 3, preferably, the elastic member 6 is a spring, the inner shaft sleeve 5 is communicated with the outlet 101, the outer shaft sleeve 4 is formed with a first pressure reducing area 7 between inner walls of the cavity 202, a second pressure reducing area 8 is formed between the outer shaft sleeve 4 and the inner wall of the inner shaft sleeve 5, a first throttle orifice 301 communicated with the first pressure reducing area 7 is symmetrically formed on the throttle plate 3, and a second pressure reducing area communicated with the high-pressure pump, thereby realizing a stable cooling capacity 401.
Further, an embedding cavity 9 is arranged between the throttle plate 3 and the inlet 201, a tightening nut 10 is arranged in the embedding cavity 9, and the inner diameter of the tightening nut 10 is smaller than the length of a central connecting line of the two first throttle holes 301.
Further, a filter 11 communicated with the tightening nut 10 is arranged in the inlet 201, and the edge of the filter 11 is fixed on the mounting seat 2 through a fixing plate 12.
Further, the second throttle holes 401 are spaced apart from the throttle plate 3 toward the inner boss 5.
Further, there are at least three groups of second throttle holes 401, and each group of second throttle holes 401 is in the same plane, and the plane of each group of second throttle holes 401 is parallel to the plane of the throttle plate 3.
The working principle is as follows: the liquid is filtered by a filter 11 and then enters a tightening nut 10, then enters a first decompression zone 7 through a first orifice 301, is decompressed by a second orifice 401 and enters a second decompression zone 8, and finally enters the low pressure side through an outlet 101; when the pressure of the high-pressure side is too high, the pressure difference with the second decompression area 8 is increased, the throttle plate 3 drives the outer shaft sleeve 4 to move towards the direction close to the inner shaft sleeve 5 under the pressure, so that the inner shaft sleeve 5 gradually shields the second throttle hole 401, the throttle area is further reduced until the lowest point is reached, and the throttle decompression capacity is the throttle decompression capacity under the high pressure; when the pressure at the high-pressure side is reduced, the outer shaft sleeve 4 moves towards the direction far away from the inner shaft sleeve 5 under the action of the spring force, and the throttling area is increased so as to ensure the flow demand after throttling.
Claims (7)
1. A throttle relief device for a high pressure pump, characterized by: including casing (1), run through export (101) of casing (1), establish in casing (1) and with mount pad (2) of export (101) intercommunication, establish mount pad (2) are kept away from entry (201) of export (101) one end, are established in mount pad (2) and respectively with export (101) and cavity (202) of entry (201) intercommunication, and throttle plate (3) of cavity (202) inner wall sliding seal connection establish throttle plate (3) are kept away from entry (201) one side outer axle sleeve (4) with outer axle sleeve (4) inner wall sliding seal connection's inner axle sleeve (5), be used for elastic component (6) that throttle plate (3) reset, outer axle sleeve (4) with be formed with first decompression district (7) between cavity (202) inner wall, outer axle sleeve (4) with be formed with second decompression district (8) between inner axle sleeve (5) inner wall, set up the symmetry intercommunication on first axle sleeve (7) throttle plate (3) first decompression district (7) the second decompression district (8) have seted up on the second decompression district (401) and the second decompression district (7).
2. A throttle relief device for a high pressure pump according to claim 1, characterized in that: an embedding cavity (9) is arranged between the throttle plate (3) and the inlet (201), a tightening nut (10) is arranged in the embedding cavity (9), and the inner diameter of the tightening nut (10) is smaller than the length of a central connecting line of the two first throttle holes (301).
3. A throttle relief device for a high pressure pump according to claim 2, characterized in that: a filter (11) communicated with the tightening nut (10) is arranged in the inlet (201), and the edge of the filter (11) is fixed on the mounting seat (2) through a fixing plate (12).
4. A throttle relief device for a high pressure pump according to claim 1, characterized in that: the second throttle holes (401) are distributed at intervals from the throttle plate (3) toward the inner sleeve (5).
5. A throttle relief device for a high pressure pump according to claim 1, characterized in that: the second throttling holes (401) are at least three groups, and the second throttling holes (401) of each group are in the same plane.
6. A throttle relief device for a high pressure pump according to claim 5, characterized in that: the plane of each group of the second throttling holes (401) is parallel to the plane of the throttle plate (3).
7. A throttle relief device for a high pressure pump according to claim 1, characterized in that: the elastic piece (6) is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773967.1U CN217873208U (en) | 2021-10-22 | 2021-10-22 | Throttling and pressure reducing device for high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773967.1U CN217873208U (en) | 2021-10-22 | 2021-10-22 | Throttling and pressure reducing device for high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217873208U true CN217873208U (en) | 2022-11-22 |
Family
ID=84048138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122773967.1U Active CN217873208U (en) | 2021-10-22 | 2021-10-22 | Throttling and pressure reducing device for high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217873208U (en) |
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2021
- 2021-10-22 CN CN202122773967.1U patent/CN217873208U/en active Active
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