Multistage pressure sharing decompression mute blowdown device of superhigh pressure air compressor

Abstract

The utility model provides an ultrahigh pressure air compressor multistage pressure sharing pressure reducing mute blowdown device, including pressure reducing valve mechanism, separation mechanism and blowdown mechanism, pressure reducing valve mechanism includes a plurality of pressure reducing valves, separation mechanism includes a plurality of different pressure separators, and blowdown mechanism includes sewage storage cavity and blowdown part, when the pressure of sewage storage cavity is greater than the set value, the valve rod of each pressure reducing valve moves to valve seat, the through -hole of valve seat is blocked, realizes a plurality of separators to carry out blowdown under the same pressure, the utility model can realize the unified throttling pressure reduction blowdown of different pressure grade gas, simplifies the device structure, moves the valve rod through the air pressure difference of pressure reducing valve two ends, realizes dynamic balance, and only uses one electromagnetic blowdown valve can realize multistage pressure blowdown simultaneously, reduces the noise and impact generated when blowdown simultaneously, improves air compressor use safety and reliability, compared with similar products, greatly reduces gas loss and waste, and low-pressure gas after pressure reduction is more convenient to recycle and reuse, realizes energy saving and efficiency increasing.

Description

Technical Field

[0001] This invention belongs to the field of air compressor technology, specifically relating to a multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for ultra-high pressure air compressors. Background Technology

[0002] Air compressors are an indispensable air compression device in modern industrial production. Existing air compressors can usually perform multi-stage compression, compressing air into multi-stage high-pressure gases of different pressures. After running for a period of time, air compressors need to be ventilated to ensure their normal operation.

[0003] Currently, the common method for air compressor blowdown is to use a single-stage, single-solenoid valve. The blowdown is timed after the valve is set. This method has many drawbacks: high equipment cost (each stage requires independent solenoid valves, pipelines, and control components, resulting in a complex overall structure and high hardware and maintenance costs); complex control logic (multiple valves require multiple control loops, leading to cumbersome control programs, susceptibility to misoperation, and difficulty in achieving synchronized blowdown at each stage); significant blowdown impact and noise (high-speed airflow generates strong impact and high-frequency noise during direct blowdown, causing erosion and wear on pipelines and valves, and posing safety hazards); large space occupation (multiple valves dispersed result in a large overall unit size, unsuitable for installation in compact equipment or integrated systems); wastewater needs to be collected and treated before disposal, but the excessive pressure released during blowdown can cause the collection tank to bulge and burst; and the release of medium- and high-pressure gases from each stage into the normal pressure environment during blowdown also wastes compressed gas from the air compressor itself.

[0004] Therefore, there is an urgent need for a multi-stage high-pressure gas discharge device with a simplified structure, reduced cost, and low discharge noise and impact to solve the shortcomings of the existing technology of independent discharge by multiple valves. Summary of the Invention

[0005] This invention enables unified throttling and pressure reduction for gases of different pressure levels, simplifies the device structure, and achieves dynamic balance by moving the valve stem through the pressure difference across the pressure reducing valve. It also enables simultaneous discharge of multiple pressure levels using only one electromagnetic discharge valve, while reducing noise and impact during discharge, improving the safety and reliability of the air compressor. Compared with similar products, it greatly reduces gas loss and waste, and the low-pressure gas after pressure reduction is easier to recover and reuse, achieving energy saving and efficiency improvement.

[0006] The technical problem solved by this invention can be achieved by the following technical solution: a multi-stage pressure-sharing pressure-reducing and silent sewage discharge device for ultra-high pressure air compressor, comprising a pressure-reducing valve mechanism, a separation mechanism and a sewage discharge mechanism, wherein the pressure-reducing valve mechanism comprises a first pressure-reducing valve and a second pressure-reducing valve, the separation mechanism comprises a first separator and a second separator, wherein the pressures of the first separator and the second separator are different, and the sewage discharge mechanism comprises a sewage storage chamber and a sewage discharge section, wherein the first separator allows the gas-liquid mixture to enter the sewage storage chamber through the first pressure-reducing valve, and the second separator allows the gas-liquid mixture to enter the sewage storage chamber through the second pressure-reducing valve; The first pressure reducing valve includes a first valve body, a first valve seat, a first valve stem, and a first spring. The first spring is installed in conjunction with the first valve stem. The first valve seat includes a first through hole. The first valve body includes a first separator connecting cavity and a first sewage discharge mechanism connecting cavity. The first valve stem includes a first valve stem cavity. The first separator connecting cavity connects the first through hole and the first separator. The first sewage discharge mechanism connecting cavity connects the first valve stem cavity and the sewage storage cavity. The second pressure reducing valve includes a second valve body, a second valve seat, a second valve stem, and a second spring. The second spring is installed in conjunction with the second valve stem. The second valve seat includes a second through hole. The second valve body includes a second separator connecting cavity and a second sewage discharge mechanism connecting cavity. The second valve stem includes a second valve stem cavity. The second separator connecting cavity connects the second through hole and the second separator. The second sewage discharge mechanism connecting cavity connects the second valve stem cavity and the sewage storage cavity. When the pressure in the sludge storage chamber exceeds the set value, the first valve stem moves toward the first valve seat, and the second valve stem moves toward the second valve seat, blocking the first and second through holes and opening the sludge discharge section, thus enabling the first separator and the second separator to discharge sludge simultaneously under the same pressure.

[0007] The pressure reducing valve mechanism also includes a third pressure reducing valve, and the separation mechanism also includes a third separator. The third separator has a different pressure than the first and second separators. The third pressure reducing valve includes a third valve body, a third valve seat, a third valve stem, and a third spring. The third spring is installed in conjunction with the third valve stem. The third valve seat includes a third through hole. The third valve body includes a third separator connecting cavity and a third sewage discharge mechanism connecting cavity. The third valve stem includes a third valve stem cavity. The third separator connecting cavity connects the third through hole and the third separator. The third sewage discharge mechanism connecting cavity connects the third valve stem cavity and the sewage storage cavity.

[0008] The first valve body, the second valve body, and the third valve body have the same specifications, as do the first valve stem, the second valve stem, and the third valve stem.

[0009] The first valve body, the second valve body, and the third valve body may include an upper valve body, a middle valve body, and a lower valve body; the first valve stem, the second valve stem, and the third valve stem may include a plug, a vent hole, and a spring seat, the spring seat being used to mate with any one of the first spring, the second spring, and the third spring.

[0010] A first safety valve is installed on the middle valve body, and a second safety valve is installed on the lower valve body.

[0011] The first spring is located between the first valve seat and the first valve stem, the second spring is located between the second valve seat and the second valve stem, and the third spring is located between the third valve seat and the third valve stem; the first spring, the second spring, and the third spring are wave springs.

[0012] The pressure setting for the sludge storage chamber is 8.0-8.5 bar.

[0013] The first separator has a pressure of 15.7 bar, the first through hole has a diameter of 2.5 mm, and the first spring has a thickness of 0.4 mm.

[0014] The second separator has a pressure of 75 bar, the second through-hole diameter is 2.5 mm, and the second spring thickness is 0.4 mm.

[0015] The third separator has a pressure of 330 bar, a third through-hole diameter of 1.5 mm, and a third spring thickness of 0.3 mm; or, the third through-hole diameter is 2.5 mm and the third spring thickness is 0.25 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention can realize unified throttling and pressure reduction of gases of different pressure levels, simplify the device structure, and achieve dynamic balance by moving the valve stem through the pressure difference at both ends of the pressure reducing valve. Moreover, multiple pressure levels can be discharged simultaneously using only one electromagnetic discharge valve, while reducing the noise and impact generated during discharge, improving the safety and reliability of air compressor use. Compared with similar products, it greatly reduces gas loss and waste, and the low-pressure gas after pressure reduction is easier to recover and reuse, thus achieving energy saving and efficiency improvement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Cross-section Figure 1 ; Figure 3 yes Figure 1 Cross-section Figure 2 ; Figure 4 This is a schematic diagram of the exploded structure of the first pressure-reducing valve.

[0018] In the diagram: 1-Pressure reducing valve mechanism, 101-Upper valve body, 102-Middle valve body, 1021-First safety valve, 103-Lower valve body, 1031-Second safety valve, 104-Plug head, 105-Vent hole, 106-Spring seat, 11-First pressure reducing valve, 111-First valve body, 1111-First separator connecting cavity, 1112-First sewage discharge mechanism connecting cavity, 112-First valve seat, 1121-First through hole, 113-First valve stem, 1131-First valve stem cavity, 114-First spring, 12-Second pressure reducing valve, 121-Second valve body, 1211-Second separator connecting cavity, 1 212-Second sewage discharge mechanism connecting cavity, 122-Second valve seat, 1221-Second through hole, 123-Second valve stem, 1231-Second valve stem cavity, 124-Second spring, 13-Third pressure reducing valve, 131-Third valve body, 1311-Third separator connecting cavity, 1312-Third sewage discharge mechanism connecting cavity, 132-Third valve seat, 1321-Third through hole, 133-Third valve stem, 1331-Third valve stem cavity, 134-Third spring, 2-Separation mechanism, 21-First separator, 22-Second separator, 23-Third separator, 3-Sewage discharge mechanism, 31-Sewage storage cavity, 32-Sewage discharge section. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0020] In the description of this invention, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0021] Combined with appendix Figure 1 To be continued Figure 4As shown, this embodiment discloses a multi-stage pressure-sharing pressure-reducing and silent sewage discharge device for an ultra-high pressure air compressor, including a pressure-reducing valve mechanism 1, a separation mechanism 2, and a sewage discharge mechanism 3. The pressure-reducing valve mechanism 1 includes a first pressure-reducing valve 11 and a second pressure-reducing valve 12. The separation mechanism 2 includes a first separator 21 and a second separator 22. Preferably, in this embodiment, the first separator 21 and the second separator 22 are gas-liquid separators. The first separator 21 is preferably installed in conjunction with the two-stage compression assembly of the air compressor, and the second separator 22 is preferably installed in conjunction with the three-stage compression assembly of the air compressor. The pressures of the first separator 21 and the second separator 22 are different. The sewage discharge mechanism 3 includes a sewage storage chamber 31 and a sewage discharge section 32. The sewage discharge section 32 is preferably an electromagnetic valve. The first separator 21 allows the gas-liquid mixture to enter the sewage storage chamber 31 through the first pressure-reducing valve 11, and the second separator 22 allows the gas-liquid mixture to enter the sewage storage chamber 31 through the second pressure-reducing valve 12. The first pressure reducing valve 11 includes a first valve body 111, a first valve seat 112, a first valve stem 113, and a first spring 114. The first spring 114 is installed in conjunction with the first valve stem 113. The first valve seat 112 includes a first through hole 1121, which is located at the center of the first valve seat 112. The first valve body 111 includes a first separator connecting cavity 1111 and a first sewage discharge mechanism connecting cavity 1112. The first valve stem 113 includes a first valve stem cavity 1131. The first separator connecting cavity 1111 connects the first through hole 1121 with the first separator 21. The first sewage discharge mechanism connecting cavity 1112 connects the first valve stem cavity 1131 and the sewage storage cavity 31. The second pressure reducing valve 12 includes a second valve body 121, a second valve seat 122, a second valve stem 123, and a second spring 124. The second spring 124 is installed in conjunction with the second valve stem 123. The second valve seat 122 includes a second through hole 1221, which is located at the center of the second valve seat 122. The second valve body 121 includes a second separator connecting cavity 1211 and a second sewage discharge mechanism connecting cavity 1212. The second valve stem 123 includes a second valve stem cavity 1231. The second separator connecting cavity 1211 connects the second through hole 1221 and the second separator 22. The second sewage discharge mechanism connecting cavity 1212 connects the second valve stem cavity 1231 and the sewage storage cavity 31. In combination with the above, preferably, in this embodiment, the pressure reducing valve mechanism 1 further includes a third pressure reducing valve 13, and the separation mechanism 2 further includes a third separator 23. The third separator 23 has a different pressure than the first separator 21 and the second separator 22. The third separator 23 is preferably installed in conjunction with the final stage compression assembly of the air compressor. The third pressure reducing valve 13 includes a third valve body 131, a third valve seat 132, a third valve stem 133, and a third spring 134. The third spring 134 is installed in conjunction with the third valve stem 133. The third valve seat 132 includes a third through hole 1321, which is located at the center of the third valve seat 132. The third valve body 131 includes a third separator connecting cavity 1311 and a third sewage discharge mechanism connecting cavity 1312. The third valve stem 133 includes a third valve stem cavity 1331. The third separator connecting cavity 1311 connects the third through hole 1321 and the third separator 23. The third sewage discharge mechanism connecting cavity 1312 connects the third valve stem cavity 1331 and the sewage storage cavity 31.

[0022] When the pressure in the sludge storage chamber 31 exceeds the set value, the first valve stem 113 moves toward the first valve seat 112, the second valve stem 123 moves toward the second valve seat 122, and the third valve stem 133 moves toward the third valve seat 132, thereby blocking the first through hole 1121, the second through hole 1221, and the third through hole 1321. The sludge discharge section 32 then opens, enabling the first separator 21, the second separator 22, and the third separator 23 to discharge sludge simultaneously under the same pressure.

[0023] In combination with the above installation structure, preferably, in this embodiment, the first separator 21, the second separator 22 and the third separator 23 are respectively installed in conjunction with the pressure reducing valve mechanism 1 through the air inlet pipe. The water-oil mixture in the first separator 21, the second separator 22 and the third separator 23 sinks naturally and is driven into the pressure reducing valve mechanism 1 by the gas.

[0024] In combination with the above, preferably, in this embodiment, the first valve body 111, the second valve body 121 and the third valve body 131 have the same specifications, and the first valve stem 113, the second valve stem 123 and the third valve stem 133 have the same specifications.

[0025] In conjunction with the above, any one or more of the first valve body 111, the second valve body 121, and the third valve body 131 includes an upper valve body 101, a middle valve body 102, and a lower valve body 103. Preferably, in this embodiment, the first valve body 111, the second valve body 121, and the third valve body 131 all include an upper valve body 101, a middle valve body 102, and a lower valve body 103. Any one or more of the first valve stem 113, the second valve stem 123, and the third valve stem 133 includes a plug head 104, a vent hole 105, and a spring seat 106. Preferably, in this embodiment, the first valve stem 113, the second valve stem 123, and the third valve stem 133 all include a plug head 104, a vent hole 105, and a spring seat 106. The device includes a plug head 104, a vent hole 105, and a spring seat 106. The vent hole 105 is preferably located on both sides of the first valve stem 113, the second valve stem 123, and the third valve stem 133. When the plug head 104 does not block the first through hole 1121, the second through hole 1221, or the third through hole 1321, the vent hole 105 connects the first valve stem cavity 1131 with the first through hole 1121, the second valve stem cavity 1231 with the second through hole 1221, and the third valve stem cavity 1331 with the third through hole 1321. The spring seat 106 is used to cooperate with any one of the first spring 114, the second spring 124, and the third spring 134.

[0026] In combination with the above, preferably, in this embodiment, a first safety valve 1021 is provided on the middle valve body 102, and a second safety valve 1031 is provided on the lower valve body 103. The second safety valve 1031 is preferably a manual valve, which releases air by hand to control the airflow.

[0027] In summary, the first spring 114 is located between the first valve seat 112 and the first valve stem 113, the second spring 124 is located between the second valve seat 122 and the second valve stem 123, and the third spring 134 is located between the third valve seat 132 and the third valve stem 133; the first spring 114, the second spring 124 and the third spring 134 are wave springs.

[0028] In combination with the above, preferably, in this embodiment, in order to achieve simultaneous sewage discharge from multiple pressure-reducing valves and separators with different pressures, it is necessary to set a target value close to the pressure after pressure reduction, so that the pressure of the sewage storage chamber 31 is preferably below 1 MPa, so that when the sewage discharge section 32 is opened and multiple sewage discharges are discharged at the same time, the pressure is consistent, and the single stage with excessively high pressure will not interfere with the other two stages with low pressure. In order to test the pressure after pressure reduction, valve seats with different orifice diameters are used, and the spring thickness is changed during testing. Under different pressure levels, valve seats and springs with different orifice diameters are combined to test the pressure values ​​after pressure reduction of each group.

[0029] Referring to Table 1 below, Table 1 shows the individual pressure reduction data of each pressure reducing valve in the pressure reducing valve mechanism 1. In Table 1, P1 is the pressure of the first separator 21, P2 is the pressure of the second separator 22, P3 is the pressure of the third separator 23, D1 is the diameter of the first through hole 1121, D2 is the diameter of the second through hole 1221, D3 is the diameter of the first through hole 1321, h1 is the thickness of the first spring 114, h2 is the thickness of the second spring 124, h3 is the thickness of the third spring 134, P... 01 P is the pressure after depressurization in the first separator 21. 02 P is the pressure after depressurization in the second separator 22. 03 The pressure after depressurization in the third separator 23.

[0030] Table 1. Pressure reduction data of each pressure reducing valve in pressure reducing valve mechanism 1. 15.3 1.5 0.25 1.7 15.5 1.5 0.30 3 15.7 1.5 0.40 5.3 15.7 2.5 0.25 2.7 15.5 2.5 0.30 4.3 15.7 2.5 0.40 8.0 <![CDATA[P2 / bar]]> <![CDATA[D2 / mm]]> <![CDATA[h2 / mm]]> <![CDATA[P 02 / bar]]> 74 1.5 0.25 1.5 74 1.5 0.30 3.5 75 1.5 0.40 6.5 75 2.5 0.25 3.7 75 2.5 0.30 6.8 75 2.5 0.40 8.5 <![CDATA[P3 / bar]]> <![CDATA[D3 / mm]]> <![CDATA[h3 / mm]]> <![CDATA[P 03 / bar]]> 330 1.5 0.25 4.1 330 1.5 0.30 8.0 330 1.5 0.40 12.4 330 2.5 0.25 8.0 330 2.5 0.30 12.7 330 2.5 0.40 / As shown in Table 1, under the same conditions, the larger the valve seat orifice diameter, the higher the pressure after decompression; the thicker the spring, the higher the pressure after decompression.

[0031] In combination with the above, preferably, in this embodiment, the pressure setting value of the sludge storage chamber 31 is 8.0-8.5 bar.

[0032] In combination with the above, preferably, in this embodiment, the pressure of the first separator 21 is 15.7 bar, the diameter of the first through hole 1121 is 2.5 mm, and the thickness of the first spring 114 is 0.4 mm.

[0033] In combination with the above, preferably, in this embodiment, the pressure of the second separator 22 is 75 bar, the diameter of the second through hole 1221 is 2.5 mm, and the thickness of the second spring 124 is 0.4 mm.

[0034] In combination with the above, preferably, in this embodiment, the pressure of the third separator 23 is 330 bar, the diameter of the third through hole 1321 is 1.5 mm, and the thickness of the third spring 134 is 0.3 mm; or, the diameter of the third through hole 1321 is 2.5 mm, and the thickness of the third spring 134 is 0.25 mm.

[0035] Based on the above installation structure, the working process of this invention is as follows: When the air compressor starts, the first separator 21, the second separator 22, and the third separator 23 input the gas-liquid mixture from the inlet pipe to the first pressure reducing valve 11, the second pressure reducing valve 12, and the third pressure reducing valve 13, respectively. At this time, there is no dirt in the sludge storage chamber 31, and the pressure is low. Due to their own elasticity, the first spring 114, the second spring 124, and the third spring 134 respectively prevent the first valve stem 113, the second valve stem 123, and the third valve stem 133 from blocking the first through hole 1121, the second through hole 1221, and the third through hole 1321. As the gas-liquid mixture is continuously input from the pressure reducing valve mechanism 1 into the sludge storage chamber 31, until the pressure in the sludge storage chamber 31 increases... When the pressure is raised to 8.0-8.5 bar, due to the large contact area of ​​the spring seat 106, the pressure of the gas-liquid mixture in the sludge storage chamber 31 causes the first valve stem 113, the second valve stem 123, and the third valve stem 133 to move towards the first valve seat 112, the second valve seat 122, and the third valve seat 132, respectively. This overcomes the elastic force of the first spring 114, the second spring 124, and the third spring 134 and blocks the first through hole 1121, the second through hole 1221, and the third through hole 1321, achieving automatic sludge discharge and sealing. Subsequently, the sludge discharge section 32 is opened, allowing the gas-liquid mixture in the sludge storage chamber 31 to be discharged. The pressure decreases, causing the first valve stem 113, the second valve stem 123, and the third valve stem 133 to reset, thus achieving circulation.

[0036] This invention enables unified throttling and pressure reduction for gases of different pressure levels, simplifies the device structure, and achieves dynamic balance by moving the valve stem through the pressure difference across the pressure reducing valve. It also enables simultaneous discharge of multiple pressure levels using only one electromagnetic discharge valve, while reducing noise and impact during discharge, improving the safety and reliability of the air compressor. Compared with similar products, it greatly reduces gas loss and waste, and the low-pressure gas after pressure reduction is easier to recover and reuse, achieving energy saving and efficiency improvement.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any way. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for an ultra-high pressure air compressor, comprising a pressure-reducing valve mechanism (1), a separation mechanism (2), and a sewage discharge mechanism (3), characterized in that: The pressure reducing valve mechanism (1) includes a first pressure reducing valve (11) and a second pressure reducing valve (12). The separation mechanism (2) includes a first separator (21) and a second separator (22). The first separator (21) and the second separator (22) have different pressures. The sewage discharge mechanism (3) includes a sewage storage chamber (31) and a sewage discharge section (32). The first separator (21) allows the gas-liquid mixture to enter the sewage storage chamber (31) through the first pressure reducing valve (11). The second separator (22) allows the gas-liquid mixture to enter the sewage storage chamber (31) through the second pressure reducing valve (12). The first pressure reducing valve (11) includes a first valve body (111), a first valve seat (112), a first valve stem (113), and a first spring (114). The first spring (114) is installed in conjunction with the first valve stem (113). The first valve seat (112) includes a first through hole (1121). The first valve body (111) includes a first separator connecting cavity (1111) and a first sewage discharge mechanism connecting cavity (1112). The first valve stem (113) includes a first valve stem cavity (1131). The first separator connecting cavity (1111) connects the first through hole (1121) and the first separator (21). The first sewage discharge mechanism connecting cavity (1112) connects the first valve stem cavity (1131) and the sewage storage cavity (31). The second pressure reducing valve (12) includes a second valve body (121), a second valve seat (122), a second valve stem (123), and a second spring (124). The second spring (124) is installed in conjunction with the second valve stem (123). The second valve seat (122) includes a second through hole (1221). The second valve body (121) includes a second separator connecting cavity (1211) and a second sewage discharge mechanism connecting cavity (1212). The second valve stem (123) includes a second valve stem cavity (1231). The second separator connecting cavity (1211) connects the second through hole (1221) and the second separator (22). The second sewage discharge mechanism connecting cavity (1212) connects the second valve stem cavity (1231) and the sewage storage cavity (31). When the pressure in the sludge storage chamber (31) is greater than the set value, the first valve stem (113) moves toward the first valve seat (112), and the second valve stem (123) moves toward the second valve seat (122), causing the first through hole (1121) and the second through hole (1221) to be blocked, and the sludge discharge section (32) opens, so that the first separator (21) and the second separator (22) can discharge sludge simultaneously under the same pressure.

2. The ultra-high pressure air compressor multi-stage pressure sharing, pressure reduction, and silent sewage discharge device according to claim 1, characterized in that: The pressure reducing valve mechanism (1) further includes a third pressure reducing valve (13), and the separation mechanism (2) further includes a third separator (23). The pressure of the third separator (23) is different from that of the first separator (21) and the second separator (22). The third pressure reducing valve (13) includes a third valve body (131), a third valve seat (132), a third valve stem (133), and a third spring (134). The third spring (134) is installed in conjunction with the third valve stem (133). The third valve seat... (132) includes a third through hole (1321), the third valve body (131) includes a third separator connecting cavity (1311) and a third sewage discharge mechanism connecting cavity (1312), the third valve stem (133) includes a third valve stem cavity (1331), the third separator connecting cavity (1311) connects the third through hole (1321) and the third separator (23), and the third sewage discharge mechanism connecting cavity (1312) connects the third valve stem cavity (1331) and the sewage storage cavity (31).

3. The multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for an ultra-high pressure air compressor according to claim 2, characterized in that: The first valve body (111), the second valve body (121), and the third valve body (131) have the same specifications, and the first valve stem (113), the second valve stem (123), and the third valve stem (133) have the same specifications.

4. The multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for ultra-high pressure air compressors according to claim 3, characterized in that: The first valve body (111), the second valve body (121), and the third valve body (131) may include an upper valve body (101), a middle valve body (102), and a lower valve body (103); the first valve stem (113), the second valve stem (123), and the third valve stem (133) may include a plug head (104), a vent hole (105), and a spring seat (106), the spring seat (106) being used to cooperate with any one of the first spring (114), the second spring (124), and the third spring (134).

5. The ultra-high pressure air compressor multi-stage pressure sharing, pressure reduction, and silent sewage discharge device according to claim 4, characterized in that: The middle valve body (102) is provided with a first safety valve (1021), and the lower valve body (103) is provided with a second safety valve (1031).

6. The multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for an ultra-high pressure air compressor according to claim 4, characterized in that: The first spring (114) is located between the first valve seat (112) and the first valve stem (113), the second spring (124) is located between the second valve seat (122) and the second valve stem (123), and the third spring (134) is located between the third valve seat (132) and the third valve stem (133); the first spring (114), the second spring (124) and the third spring (134) are wave springs.

7. A multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for an ultra-high pressure air compressor according to any one of claims 2 to 6, characterized in that: The pressure setting value of the sludge storage chamber (31) is 8.0-8.5 bar.

8. The multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for an ultra-high pressure air compressor according to claim 7, characterized in that: The first separator (21) has a pressure of 15.7 bar, the first through hole (1121) has a diameter of 2.5 mm, and the first spring (114) has a thickness of 0.4 mm.

9. A multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for an ultra-high pressure air compressor according to claim 7, characterized in that: The second separator (22) has a pressure of 75 bar, the second through hole (1221) has a diameter of 2.5 mm, and the second spring (124) has a thickness of 0.4 mm.

10. A multi-stage pressure-sharing, pressure-reducing, silent sewage discharge device for an ultra-high pressure air compressor according to claim 7, characterized in that: The third separator (23) has a pressure of 330 bar, the third through hole (1321) has a diameter of 1.5 mm, and the third spring (134) has a thickness of 0.3 mm; or, the third through hole (1321) has a diameter of 2.5 mm, and the third spring (134) has a thickness of 0.25 mm.

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