CN113757089A - Diaphragm compressor membrane head leakage-proof device - Google Patents
Diaphragm compressor membrane head leakage-proof device Download PDFInfo
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- CN113757089A CN113757089A CN202111216177.1A CN202111216177A CN113757089A CN 113757089 A CN113757089 A CN 113757089A CN 202111216177 A CN202111216177 A CN 202111216177A CN 113757089 A CN113757089 A CN 113757089A
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- leakage
- air disc
- diaphragm
- air
- compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a diaphragm head leakage-proof device of a diaphragm compressor, which comprises the diaphragm compressor, wherein the diaphragm compressor is provided with an air disc leakage interface, the air disc leakage interface is connected with an air disc pressure gauge, the air disc leakage interface is also connected with an input port of a one-way valve, and an output port of the one-way valve is connected with an air inlet pipeline of the diaphragm compressor. By arranging the air disc leakage interface, the air disc pressure gauge and the one-way valve, the invention can effectively distinguish the leakage of the air disc sealing ring from the leakage of the diaphragm and the oil side sealing ring, eliminates the false alarm caused by accidental leakage of the air disc sealing ring and the influence of stopping on production, obviously prolongs the maintenance period of the membrane head and realizes zero leakage of process gas.
Description
Technical Field
The invention relates to the technical field of diaphragm compressor equipment, in particular to a diaphragm head leakage-preventing device of a diaphragm compressor.
Background
Diaphragm compressors in the existing market, particularly high-pressure hydrogen compressors, generally have the problem that process gas is easy to generate accidental leakage from a gas side sealing ring. The common membrane head leakage alarm system cannot effectively distinguish accidental leakage or membrane leakage, thereby often causing false alarm and shutdown of the compressor. Some compressor manufacturers adopt a micro-leakage mode to solve the problem of frequent false alarm shutdown of the compressor, but the scheme cannot effectively distinguish leakage of the gas side sealing ring from leakage of the diaphragm and the oil side sealing ring; and also has the problem of process gas leakage.
Disclosure of Invention
The invention aims to provide a membrane head leakage-proof device of a membrane compressor, which aims to solve the technical problem.
In order to achieve the purpose, the invention provides a diaphragm head leakage-proof device of a diaphragm compressor, which comprises the diaphragm compressor, wherein the diaphragm compressor is provided with an air disc leakage interface, the air disc leakage interface is connected with an air disc pressure gauge, the air disc leakage interface is also connected with an input port of a one-way valve, and an output port of the one-way valve is connected with an air inlet pipeline of the diaphragm compressor.
Further, the air disc leakage interface is also connected with a first manual valve, and the first manual valve is connected with the air inlet pipeline of the diaphragm compressor.
Further, the air disc leakage interface is arranged on the air disc side of the diaphragm compressor and communicated with the air disc leakage convergence groove.
Further, the air disc leakage convergence groove is an annular groove arranged between the air disc and the diaphragm.
Further, the inner side of the air disc leakage gathering groove is provided with an air disc sealing ring, and the outer side of the air disc leakage gathering groove is provided with a detection isolation sealing ring.
The invention has the beneficial effects that: according to the diaphragm head leakage-proof device of the diaphragm compressor, the air disc leakage interface, the air disc pressure gauge and the one-way valve are arranged, the output port of the one-way valve is connected with the air inlet pipeline of the diaphragm compressor, leakage of the air disc sealing ring can be effectively distinguished from leakage of the diaphragm and the oil side sealing ring, false alarm caused by accidental leakage of the air disc sealing ring and influence of stopping on production are eliminated, the maintenance period of the diaphragm head is obviously prolonged, and zero leakage of process gas is realized.
The invention is described in detail below with reference to the figures and examples.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partially enlarged view a of fig. 1.
In the figure: 1. an air pan; 2. an oil pan; 3. a membrane; 4. an air disk seal ring; 5. an oil pan seal ring; 6. an outer seal ring; 7. a membrane head leakage convergence tank; 8. a membrane head detection interface; 9. an air disk leakage convergence slot; 10. an air pan leak interface; 11. detecting the isolation seal ring; 12. a diaphragm compressor; 13. a gas disk pressure gauge; 14. a one-way valve; 15. a first manual valve; 16a, an air inlet pipeline of the diaphragm compressor; 16b, a diaphragm compressor exhaust line; 17. a pressure transmitter; 18. a data line; 19. a safety controller; 20. a safety valve; 21. a metering valve; 22. a second manual valve; 23. and a discharge port.
Detailed Description
The invention discloses a diaphragm head leakage-proof device of a diaphragm compressor, which comprises a diaphragm compressor 12, wherein a diaphragm 3 is arranged between an air disc 1 and an oil disc 2 of the diaphragm compressor 12, the air disc 1 is connected with the diaphragm 3 to form a closed air cavity, the oil disc 2 is connected with the diaphragm 3 to form a closed oil cavity, an air disc sealing ring 4 is arranged on the contact surface between the air disc 1 and the diaphragm 3, and an oil disc sealing ring 5 is arranged on the contact surface between the oil disc 2 and the diaphragm 3, as shown in figures 1 and 2. The device is provided with a membrane head detection interface 8 and an air disc leakage interface 10, wherein the air disc leakage interface 10 is communicated with an air disc leakage convergence groove 9 arranged on one side of an air disc 1, and the air disc leakage convergence groove 9 is an annular groove arranged between the air disc and a membrane; a membrane head leakage gathering groove 7 is arranged between the air disc 1 and the oil disc 2, the membrane head leakage gathering groove 7 is communicated with the contact surfaces of the air disc 1 and the oil disc 2 and the membrane 3, a membrane head detection interface 8 is communicated with the membrane head leakage gathering groove 7, and an outer side sealing ring 6 is arranged on the outer side of the membrane head leakage gathering groove 7; the air disc sealing ring 4 is arranged on the inner side of the air disc leakage gathering groove 9, and the detection isolation sealing ring 11 is arranged on the outer side of the air disc leakage gathering groove 9.
The air disc leakage interface 10 of the device is connected with an air disc pressure gauge 13, and whether leakage exists on the side of the air disc can be judged according to the reading of the air disc pressure gauge 13. In addition, the air disc leakage interface 10 is also connected with an input port of a one-way valve 14, an output port of the one-way valve 14 is connected with an air inlet pipeline 16a of the diaphragm compressor, and the diaphragm compressor further comprises a gas exhaust pipeline 16b of the diaphragm compressor. When the pressure of the gas disc side leakage gas is higher than the diaphragm compressor inlet line 16a gas pressure, the leakage gas will return to the diaphragm compressor inlet line 16 a.
When high-temperature and high-pressure gas (particularly small-molecule gas such as hydrogen) in the membrane head penetrates through the gas disc sealing ring 4, the detection isolation sealing ring 11 can intercept the gas for the second time, the gas between the gas disc sealing ring 4 and the detection isolation sealing ring 11 is collected by the gas disc leakage converging groove 9 and is filled in a flow guide channel on the gas disc, and when the pressure of the leaked gas is higher than the gas pressure of the gas inlet pipeline 16a of the diaphragm compressor, the leaked gas returns to the gas inlet pipeline 16a of the diaphragm compressor, so that the process gas is ensured not to leak outwards. The diaphragm compressor is shut down substantially once a day, and the pressure of the process gas drops each time the compressor is shut down, thus ensuring that the pressure of the gas in the pilot line is released once a day. Meanwhile, the leakage condition of the air disc sealing ring 4 can be judged according to the air disc pressure gauge 13.
Therefore, the leakage of the air disc sealing ring 4 can be effectively distinguished from the leakage of the diaphragm 3 and the oil disc sealing ring 5, the influence of shutdown caused by false alarm due to accidental leakage of the air disc sealing ring 4 on production is eliminated, and meanwhile, no external leakage of process gas is ensured.
Specifically, the gas disk leakage interface 10 is further connected with a first manual valve 15, the first manual valve 15 is communicated with the output port of the one-way valve 14 and is connected with a gas inlet pipeline 16a of the diaphragm compressor, when the diaphragm compressor is stopped, the pressure of the process gas is reduced, and the first manual valve 15 is opened, so that the pressure of the gas in the diversion pipeline is released once a day.
Specifically, the membrane head detection interface 8 is connected with a pressure transmitter 17, the pressure transmitter 17 is connected with a safety controller 19 through a data line 18, and the safety controller 19 is a controller which sends out an alarm signal and controls the membrane compressor 12 to stop. When a large amount of leakage occurs at the membrane head detection interface 8, the pressure transmitter 17 transmits a signal to the safety controller 19, and the safety controller 19 sends out an alarm signal and controls the membrane compressor 12 to stop.
Specifically, the membrane head detection interface 8 is further connected with an input port of a safety valve 20, an output port of the safety valve 20 is connected with a discharge port 23, and the safety valve 20 is a check valve which is opened when the pressure is greater than 6.9 barG. When the diaphragm compressor 12 produces a large amount of leakage, the pressure of the channel connected with the diaphragm head detection interface 8 is increased, and when the pressure is higher than 6.9barG, the safety valve 20 is opened and is communicated to the discharge port 23 for discharging.
Specifically, the membrane head detection interface 8 is further connected with a metering valve 21, an output port of the metering valve is connected with a discharge port 23, and when a small amount of leakage exists at the membrane head detection interface 8, the safety valve 20 is in a closed state and is communicated to the discharge port 23 through the metering valve 21 for discharging.
Specifically, the membrane head detection interface 8 is further connected with a second manual valve 22, and an output port of the second manual valve 22 is communicated with the outside, so that manual control is facilitated.
According to the diaphragm head leakage-proof device of the diaphragm compressor, the air disc leakage interface, the air disc pressure gauge and the one-way valve are arranged, and the output port of the one-way valve is connected with the air inlet pipeline of the diaphragm compressor, so that the leakage of the air disc sealing ring can be effectively distinguished from the leakage of the diaphragm and the oil side sealing ring, the false alarm caused by accidental leakage of the air disc sealing ring and the influence of stopping on production are eliminated, the maintenance period of the diaphragm head is obviously prolonged, and zero leakage of process gas is realized.
Finally, it should be noted that: the above description is only for the purpose of describing particular embodiments of the present invention, and is not intended to limit the scope of the present invention, which is defined by the claims and the accompanying drawings, and the person skilled in the art should understand that: any person skilled in the art can modify the above-mentioned technical solutions or easily conceive of changes, or equivalent substitutions of some technical features, within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included therein.
Claims (5)
1. The diaphragm compressor is provided with an air disc leakage interface, the air disc leakage interface is connected with an air disc pressure gauge, the air disc leakage interface is also connected with an input port of a one-way valve, and an output port of the one-way valve is connected with an air inlet pipeline of the diaphragm compressor.
2. The membrane head leakage prevention device for a membrane compressor as claimed in claim 1, wherein said air disc leakage interface is further connected to a first manual valve, said first manual valve being connected to said inlet line of said membrane compressor.
3. A membrane head leakage prevention device for a membrane compressor as claimed in claim 1, wherein the air disc leakage interface is disposed at an air disc side of the membrane compressor, and the air disc leakage interface is communicated with the air disc leakage convergence groove.
4. A membrane head leakage prevention apparatus for a diaphragm compressor as defined in claim 3, wherein said air disc leakage convergence groove is an annular groove provided between the air disc and the membrane.
5. A membrane head leakage preventing device for a diaphragm compressor as claimed in claim 3, wherein the inner side of the air disc leakage converging groove is provided with an air disc sealing ring, and the outer side of the air disc leakage converging groove is provided with a detection isolation sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216177.1A CN113757089A (en) | 2021-10-19 | 2021-10-19 | Diaphragm compressor membrane head leakage-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216177.1A CN113757089A (en) | 2021-10-19 | 2021-10-19 | Diaphragm compressor membrane head leakage-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113757089A true CN113757089A (en) | 2021-12-07 |
Family
ID=78784052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111216177.1A Pending CN113757089A (en) | 2021-10-19 | 2021-10-19 | Diaphragm compressor membrane head leakage-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113757089A (en) |
-
2021
- 2021-10-19 CN CN202111216177.1A patent/CN113757089A/en active Pending
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