CN204963421U - Carry air separation device of sealing gas body - Google Patents
Carry air separation device of sealing gas body Download PDFInfo
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- CN204963421U CN204963421U CN201520733517.1U CN201520733517U CN204963421U CN 204963421 U CN204963421 U CN 204963421U CN 201520733517 U CN201520733517 U CN 201520733517U CN 204963421 U CN204963421 U CN 204963421U
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- valve
- pipeline
- self
- air separation
- gas
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Abstract
The utility model provides a carry air separation device of sealing gas body, includes the instrument supply gas compressor, and the instrument supply gas compressor passes through pipeline connection on the stop valve, is connected with the check valve through the stop valve, and the pipeline connection through the check valve still is connected with the pipeline that comes from low pressure nitrogen gas pipe network on the self -supporting governing valve on the self -supporting governing valve, install relief pressure valve and check valve on the pipeline of low pressure nitrogen gas pipe network in proper order, and the self -supporting governing valve connects gradually at expander, cryogenic liquid pump and booster compressor through the pipeline, after the car is jumped by full factory, through opening the stop valve, cause the sealing gas pipeline with the instrument supply gas on, through pressure self -modulation valve, supply the sealing gas system after the step -down, after air separation device's parking, under the condition that sealing gas provided, equipment such as booster compressor, cryogenic liquid pump, expander still are in the stand -by state, the utility model has the characteristics of prevent that liquid from leaking, freezing equipment, can shorten air separation device simultaneously and drive the time.
Description
Technical field
The utility model relates to the device of conveying sealing gas, particularly a kind of air separation unit carrying sealing gas.
Background technology
Air separation unit blanket gas system is air-compressor set, cryogenic pump, decompressor ice chest, cryogenic liquid tank provide qualified nitrogen.And blanket gas provide two-way, come from low-pressure nitrogen pipe network, another road is from back-up system.If full factory stops (comprising between hot motor-car), the two-way origin of blanket gas all cannot normally provide; If 1 unit is without blanket gas, the grease pump of unit petrol station cannot start because of blanket gas pressure interlock; If force start grease pump, lubricating oil will enter supercharger cylinder; If do not started grease pump, now the temperature of turbine rotor is very high, and high temperature will pass to steam turbine bearing place very soon, and bearing will not burn out bearing shell for the cooling of lubricating oil; 2, the liquid of cryogenic pump can flow to around liquid oxygen pump along dry gas seals gap, causes pump box ambient gas content overproof, and fail to be convened for lack of a quorum outside a large amount of cryogenic liquid bursting by freezing cold box plate simultaneously, thus cause pearlife to leak; 3, decompressor expanding end temperature after just stopping is lower, when very fast cold being passed to the freezing bearing in decompressor bearing place without cryogenic gas when blanket gas and the very low rotor of temperature.
When blanket gas cannot be provided after full factory stops, by being drawn the dry instrument supply gas in a road by instrument supply gas pipeline on blanket gas pipeline, for empty watershed area provides the blanket gas of certain pressure dew point.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of air separation unit carrying sealing gas, has and prevents leak of liquid, freezing equipment, can shorten the feature of air separation unit driving time simultaneously.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of air separation unit carrying sealing gas, comprise instrument supply gas compressor 9, the port of export of instrument supply gas compressor 9 is connected on stop valve 4 by pipeline, check (non-return) valve 1 is connected with by stop valve 4, be connected on self-supporting regulation valve 3 by the pipeline of check (non-return) valve 1, self-supporting regulation valve 3 is also connected with the pipeline from low-pressure nitrogen pipe network, the pipeline of low-pressure nitrogen pipe network is provided with successively pressure-reducing valve 1 and check (non-return) valve 22, self-supporting regulation valve 3 is connected to the arrival end of decompressor 6, cryogenic liquid pump 7 and supercharger 8 by pipeline.
Described pressure-reducing valve 1 is YC7303.16.Y01 pressure-reducing valve.
The beneficial effects of the utility model:
The utility model can after air separation unit stops, immediately by the instrument supply gas from instrument supply gas pipe network, for the equipment such as supercharger 8, cryogenic liquid pump 7, decompressor 6 of air separation unit provides qualified blanket gas, thus can avoid because of the accident causing supercharger 8 without blanket gas, the bearing of decompressor 6 burns out, cryogenic liquid pump 7 is because leaking outside without blanket gas cryogenic liquid, and the accident of freezing equipment occurs; Air separation unit can be shortened drive the time simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of air separation unit carrying sealing gas, comprise instrument supply gas compressor 9, the port of export of instrument supply gas compressor 9 is connected on stop valve 4 by pipeline, check (non-return) valve 1 is connected with by stop valve 4, be connected on self-supporting regulation valve 3 by the pipeline of check (non-return) valve 1, self-supporting regulation valve 3 is also connected with the pipeline from low-pressure nitrogen pipe network, the pipeline of low-pressure nitrogen pipe network is provided with successively pressure-reducing valve 1 and check (non-return) valve 22, self-supporting regulation valve 3 is connected to the arrival end of decompressor 6, cryogenic liquid pump 7 and supercharger 8 by pipeline.
Described pressure-reducing valve 1 is YC7303.16.Y01 pressure-reducing valve.
Operation principle of the present utility model:
The instrument supply gas of 0.8Mpa, from the instrument supply gas pipeline from instrument supply gas compressor 9, before drawing a road instrument supply gas to blanket gas pressure self-adjusting valve 3, is reduced to 0.5Mpa by pressure self-adjusting valve 3, for blanket gas system by the utility model.After car is jumped by full factory, by opening stop valve 4, being caused by instrument supply gas on blanket gas pipeline, by pressure self-adjusting valve 3, is for blanket gas system by pressure after the instrument supply gas pressure modulation 0.5Mpa of 0.8Mpa.After the parking of air separation unit, when blanket gas provides, the equipment such as supercharger 8, cryogenic liquid pump 7, decompressor 6 are still in stand-by state, substantially reduce the driving time.
Claims (2)
1. carry the air separation unit of sealing gas for one kind, comprise instrument supply gas compressor (9), it is characterized in that, the port of export of instrument supply gas compressor (9) is connected on stop valve (4) by pipeline, check (non-return) valve one (5) is connected with by stop valve (4), be connected on self-supporting regulation valve (3) by the pipeline of check (non-return) valve one (5), self-supporting regulation valve (3) is also connected with the pipeline from low-pressure nitrogen pipe network, the pipeline of low-pressure nitrogen pipe network is provided with successively pressure-reducing valve (1) and check (non-return) valve two (2), self-supporting regulation valve (3) is connected to decompressor (6) by pipeline, the arrival end of cryogenic liquid pump (7) and supercharger (8).
2. a kind of air separation unit carrying sealing gas according to claim 1, is characterized in that, described pressure-reducing valve (1) is YC7303.16.Y01 pressure-reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733517.1U CN204963421U (en) | 2015-09-21 | 2015-09-21 | Carry air separation device of sealing gas body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733517.1U CN204963421U (en) | 2015-09-21 | 2015-09-21 | Carry air separation device of sealing gas body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204963421U true CN204963421U (en) | 2016-01-13 |
Family
ID=55058479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520733517.1U Expired - Fee Related CN204963421U (en) | 2015-09-21 | 2015-09-21 | Carry air separation device of sealing gas body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204963421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593547A (en) * | 2016-12-27 | 2017-04-26 | 杭州杭氧膨胀机有限公司 | Sealing system of turbo expander |
-
2015
- 2015-09-21 CN CN201520733517.1U patent/CN204963421U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593547A (en) * | 2016-12-27 | 2017-04-26 | 杭州杭氧膨胀机有限公司 | Sealing system of turbo expander |
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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: 20160113 Termination date: 20200921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |