CN203743437U - Gas supply and detection device of dry gas seal system - Google Patents
Gas supply and detection device of dry gas seal system Download PDFInfo
- Publication number
- CN203743437U CN203743437U CN201420023621.7U CN201420023621U CN203743437U CN 203743437 U CN203743437 U CN 203743437U CN 201420023621 U CN201420023621 U CN 201420023621U CN 203743437 U CN203743437 U CN 203743437U
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- Prior art keywords
- pressure
- valve
- gas
- detection device
- switch
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- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 230000011664 signaling Effects 0.000 claims description 21
- 239000002184 metal Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Abstract
The utility model relates to a gas supply and detection device of a dry gas seal system, and belongs to the technical field of mechanical seal control. The gas supply and detection device of the dry gas seal system comprises a gas pipe, a gas inlet valve, a filter, a pressure reducing valve, a rotor flow meter, a flow adjustor, a pressure switch, a pressure relief valve, a pressure meter, a check valve, a gas outlet valve, a support, a bottom plate and a signal lamp control circuit. The components and the circuit are all arranged on the bottom plate. The bottom plate is located on the support. The gas pipe, the gas inlet valve, the filter, the pressure reducing valve, the rotor flow meter, the flow adjuster, the pressure switch, the pressure relief valve, the pressure meter, the check valve and the gas outlet valve are sequentially connected through a metal pipeline. The signal lamp control circuit comprises a first signal lamp, a second signal lamp, a flow switch, a first relay, a second relay, a pressure switch contact, a power supply, a power supply switch and a wire. The device can provide pure gas, the detection device is arranged, so that enough dry gas pressure and flow can be guaranteed, and the device can conduct automatic adjustment or warning when being disturbed.
Description
Technical field
The utility model relates to a kind of dry gas seals system air feed and detection device, belongs to mechanical seal control technique field.
Background technique
Dry gas seals claims again mechanical gas film face seal, is used in the effective sealing of realization to harmful matter on rotating equipment.Conventional machinery sealing is directly to be contacted by rotating ring, stationary ring, realizes sealing by both contact friction operations, and because dynamic and static ring directly contacts, the life-span of mechanical seal is shorter.Dry gas seals is a kind of novel noncontact seal, is to utilize gas dynamic pressure and hydrostatic effects, realizes non-contact operation thereby rotating ring is separated with stationary ring by air film, and its velocity limit is high, good seal performance, life-span are long.
In dry gas seals, rotating ring rotates with the axis, sealing gas flows from seal ring outer radial internal diameter, enter out in the shallow slot on seal ring, due to the existence on sealing weir, stop that sealing gas is to seal ring center flow, and because the throttling action on sealing weir makes sealing gas raise rapidly at groove root place pressure, gas pressure between two seal rings increases, contact force between rotating ring and stationary ring is progressively reduced, until rotating ring and stationary ring are pushed open, and then between dynamic and static ring, form the air film of thin layer, realize non-contact operation.In the time that air film power equates with pressure medium and elastic element pretightening force, the air film with certain pressure stops sealed medium to outward leakage.In dry gas seals systematic steady state when operation,, the thickness of air film is certain value, when sealing system is impacted or when other disturb, by the adjusting of air-film thickness, produces different air film power and reach the balance of sealing system.
In order to make sealing system operation steady in a long-term, dry gas endlessly just need to be provided, and should be anhydrous, without oily, pure be clean gas.If the gas providing is not pure gas, will exert an influence to sealability.
Summary of the invention
The problem and the deficiency that exist for above-mentioned prior art, the utility model provides a kind of dry gas seals system air feed and detection device.This device can not only provide pure gas, and is provided with the device of detection, to ensure enough dry gas pressure and flow, and can realize automatic adjusting and warning in the time being interfered, and the utility model is achieved through the following technical solutions.
A kind of dry gas seals system air feed and detection device, comprise tracheae 1, suction valve 2, filter 3, reduction valve 4, rotameter 5, flow regulator 6, pressure switch 7, pressure-relief valve 8, pressure gauge 9, one-way valve 10, gas outlet valve 11, bearing 12, base plate 13 and signaling lamp control circuit, above-mentioned parts and circuit are all located on base plate 13, base plate 13 is positioned on bearing 12, tracheae 1, suction valve 2, filter 3, reduction valve 4, rotameter 5, flow regulator 6, pressure switch 7, pressure-relief valve 8, pressure gauge 9, one-way valve 10, gas outlet valve 11 is linked in sequence by metallic conduit, signaling lamp control circuit comprises signaling lamp I 14, signaling lamp II 15, flow switch 16, relay I 17, relay II 18, pressure switch contact 19, power supply 20, power switch 21 and wire 22.
Described bearing 12 is connected by screw with base plate 13.
The elbow that described parts connect adopts flexible pipe to connect.
The use principle of this dry gas seals system air feed and detection device is:
(1) be provided with filter 3 parts, the dry gas providing be anhydrous, without oil, pure be clean gas;
(2) be provided with reduction valve 4 and reduce the pressure of entrance pressurized gas, flow regulator 6 regulates uninterrupted, pressure-relief valve 8 is realized overvoltage gas purging, pressure switch 7 is controlled the lower limit of gas pressure, pressure gauge 9 and rotameter 5 are for pressure and the flow of gas in observation tube, one-way valve 10 ensures that gas unidirectional flows, and signaling lamp I 14, signaling lamp II 15 are used for alarm indication;
(3) auxiliary contact in relay I 17, the relay II 18 in signaling lamp control circuit can be by the signal is far passed, realizes strange land and detects.
The using method of this dry gas seals system air feed and detection device is: first in tracheae 1, pass into gas, that gas obtains after filter 3 filters is anhydrous, without oil, pure be clean gas, then be passed on seal ring, in this process in the time that pressure is excessive, pressure-relief valve 8 is gone out the gas discharging of overvoltage, reach and set under gas pressure in limited time when pressure is too small, pressure switch 7 closures, signaling lamp I 14 is bright; In the time that flow arrives or exceed the minimum value of setting or maximum value, flow switch 16 closures, signaling lamp II 15 is bright.
The beneficial effects of the utility model are: this device can not only provide pure gas, and are provided with the device of detection, to ensure enough dry gas pressure and flow, and can realize automatic adjusting and warning in the time being interfered.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit connection diagram.
In figure: 1-tracheae, 2-suction valve, 3-filter, 4-reduction valve, 5-rotameter, 6-flow regulator, 7-pressure switch, 8-pressure-relief valve, 9-pressure gauge, 10-one-way valve, 11-gas outlet valve, 12-bearing, 13-base plate, 14-signaling lamp I, 15-signaling lamp II, 16-flow switch, 17-relay I, 18-relay II, 19-pressure switch contact, 20-power supply, 21-power switch, 22-wire.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1
As shown in Figure 1, this dry gas seals system air feed and detection device, comprise tracheae 1, suction valve 2, filter 3, reduction valve 4, rotameter 5, flow regulator 6, pressure switch 7, pressure-relief valve 8, pressure gauge 9, one-way valve 10, gas outlet valve 11, bearing 12, base plate 13 and signaling lamp control circuit, above-mentioned parts and circuit are all located on base plate 13, base plate 13 is positioned on bearing 12, tracheae 1, suction valve 2, filter 3, reduction valve 4, rotameter 5, flow regulator 6, pressure switch 7, pressure-relief valve 8, pressure gauge 9, one-way valve 10, gas outlet valve 11 is linked in sequence by metallic conduit, signaling lamp control circuit comprises signaling lamp I 14, signaling lamp II 15, flow switch 16, relay I 17, relay II 18, pressure switch contact 19, power supply 20, power switch 21 and wire 22.
Wherein bearing 12 is connected by screw with base plate 13; The elbow that parts connect adopts flexible pipe to connect.
As shown in Figure 2, power supply 20 output terminals are divided into two-way: after a road connection traffic switch 16, be connected with the parallel circuit of signaling lamp I 14 and relay I 17, another road is connected with the parallel circuit of signaling lamp II 15 and relay II 18 after pressure switch 7.
Claims (3)
1. dry gas seals system air feed and a detection device, is characterized in that: comprise tracheae (1), suction valve (2), filter (3), reduction valve (4), rotameter (5), flow regulator (6), pressure switch (7), pressure-relief valve (8), pressure gauge (9), one-way valve (10), gas outlet valve (11), bearing (12), base plate (13) and signaling lamp control circuit, it is upper that above-mentioned parts and circuit are all located at base plate (13), and it is upper that base plate (13) is positioned at bearing (12), tracheae (1), suction valve (2), filter (3), reduction valve (4), rotameter (5), flow regulator (6), pressure switch (7), pressure-relief valve (8), pressure gauge (9), one-way valve (10), gas outlet valve (11) is linked in sequence by metallic conduit, and signaling lamp control circuit comprises signaling lamp I (14), signaling lamp II (15), flow switch (16), relay I (17), relay II (18), pressure switch contact (19), power supply (20), power switch (21) and wire (22).
2. dry gas seals system air feed according to claim 1 and detection device, is characterized in that: described bearing (12) is connected by screw with base plate (13).
3. dry gas seals system air feed according to claim 1 and detection device, is characterized in that: the elbow that described parts connect adopts flexible pipe to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420023621.7U CN203743437U (en) | 2014-01-15 | 2014-01-15 | Gas supply and detection device of dry gas seal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420023621.7U CN203743437U (en) | 2014-01-15 | 2014-01-15 | Gas supply and detection device of dry gas seal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743437U true CN203743437U (en) | 2014-07-30 |
Family
ID=51343238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420023621.7U Expired - Fee Related CN203743437U (en) | 2014-01-15 | 2014-01-15 | Gas supply and detection device of dry gas seal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707997A (en) * | 2019-02-13 | 2019-05-03 | 中国神华能源股份有限公司 | Feeder and air supply method for dry gas seals system |
-
2014
- 2014-01-15 CN CN201420023621.7U patent/CN203743437U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707997A (en) * | 2019-02-13 | 2019-05-03 | 中国神华能源股份有限公司 | Feeder and air supply method for dry gas seals system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20150115 |
|
| EXPY | Termination of patent right or utility model |