CN105129743A - Water removing device used for SF6 gas recycling device - Google Patents
Water removing device used for SF6 gas recycling device Download PDFInfo
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- CN105129743A CN105129743A CN201510580922.9A CN201510580922A CN105129743A CN 105129743 A CN105129743 A CN 105129743A CN 201510580922 A CN201510580922 A CN 201510580922A CN 105129743 A CN105129743 A CN 105129743A
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- switch
- freeing arrangement
- valve
- pressure
- storage water
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Abstract
The invention relates to a water removing device used for an SF6 gas recycling device. The water removing device comprises a condensation device, a water storage and draining device connected with the condensation device and a pressure control device for controlling pressure in the water storage and draining device, wherein a gas inlet/outlet connected with the pressure control device and a water inlet connected with the condensation device are formed in the top of the water storage and draining device; a water draining hole controlled by a first switching valve is formed in the bottom of the water storage and draining device; a second switching valve is arranged between the water storage and draining device and the condensation device; the water storage and draining device is arranged under the condensation device. The water removing device provided by the invention can work normally under positive-pressure and negative-pressure states; when water is drained, only less SF6 gas remained in the water storage and draining device is leaked after the switching valve between the condensation device and the water storage and draining device is switched off; the problems that an existing water removing device used for the SF6 gas recycling device only can work under positive pressure and a lot of SF6 is leaked in a recycling process are solved.
Description
Technical field
The present invention relates to gas concentration unit field, particularly one is used for SF
6the de-watering apparatus of gas concentration unit.
Background technology
Need in the product such as cylindrical shell and corrugated tube to utilize SF after finishing the water test
6gas is hunted leak, and the SF after leak test
6containing a large amount of water vapour in gas, the SF of this kind containing a large amount of water vapour
6if gas directly reclaims without processed, water vapour will condense into liquid water under compressor end High Pressure, likely cause equipment badly damaged, make equipment occur the faults such as pipeline ice blocks up.
At present for SF
6the de-watering apparatus of gas concentration unit is generally utilize the principle that dewaters of air compressor system to be prepared from, but this equipment dewatered all can only work under positive pressure, and in drainage procedure, have a large amount of SF
6gas is discharged into contaminate environment in air.
Summary of the invention
The object of this invention is to provide a kind of for SF
6the de-watering apparatus of gas concentration unit, with the problem solved current for SF
6the de-watering apparatus of gas concentration unit can only work under positive pressure, have a large amount of SF in removal process
6the problem revealed.
Technical scheme of the present invention is: a kind of for SF
6the de-watering apparatus of gas concentration unit, the storage water-freeing arrangement comprise condensing works, being connected with condensing works, described for SF
6the de-watering apparatus of gas concentration unit also comprises the pressure control device controlling storage water-freeing arrangement internal pressure, the water-in that storage water-freeing arrangement top being provided with air inlet/outlet for being connected with pressure control device, being connected with condensing works, the water port that the first switch-valve controls is provided with bottom storage water-freeing arrangement, be provided with second switch valve between storage water-freeing arrangement and condensing works, storage water-freeing arrangement is arranged on the below of condensing works.
Described pressure control device comprises vacuum extractor, compressed air-feed device and controls to be arranged on storage water-freeing arrangement and compressed air-feed device, to store up the pressure operated switch that the switch-valve between water-freeing arrangement and vacuum extractor opens and closes for the pressure that detects in storage water-freeing arrangement.
Described air inlet/outlet has two, one is connected with vacuum extractor, another is connected with compressed air-feed device, is provided with the 3rd switch-valve between described storage water-freeing arrangement and vacuum extractor, is provided with the 4th switch-valve between storage water-freeing arrangement and compressed air-feed device.
Described air inlet/outlet only has one, air inlet/outlet with can realize storing up water-freeing arrangement and be connected with the 5th switch-valve connected separately between compressed air-feed device, vacuum extractor respectively.
Described pressure operated switch comprises the first pressure operated switch that control the 3rd switch-valve opens and closes and the second pressure operated switch controlling the 4th switch-valve keying.
Described for SF
6the de-watering apparatus of gas concentration unit starts to reclaim SF
6during gas, second switch valve is opened, and first and third, four switch-valves cut out, and water vapour enters storage water-freeing arrangement after condensing works liquefy water; When SF is reclaimed in stopping
6during gas, first pressure operated switch detects storage water-freeing arrangement internal pressure, when confirming that detecting storage water-freeing arrangement internal pressure is negative pressure, second switch valve cuts out, 4th switch-valve is opened and be filled with pressurized air in storage water-freeing arrangement, until after the first pressure operated switch detects that pressure reaches set(ting)value, the first pressure operated switch controls the 4th switch-valve and closes, then the first switch-valve is opened, the draining of storage water-freeing arrangement; It is that zero draining completes that second pressure operated switch detects storage water-freeing arrangement internal pressure, and the first switch-valve cuts out, and then the second pressure operated switch controls the 3rd switch-valve unlatching, carries out vacuum pumping to storage water-freeing arrangement.
Described SF
6the de-watering apparatus of gas concentration unit also comprises electric control system, and at least one in described switch-valve is the electric switching valve controlled by electric control system.
Described condensing works comprises unit cooler and drainer, is provided with the refrigerant circulation pipe be connected with unit cooler in drainer.
Described for SF
6the de-watering apparatus of gas concentration unit also comprises heating unit, condensing works is provided with SF to be recycled
6inlet mouth, the SF to be recycled of heating unit and condensing works
6inlet mouth connects.
Described for SF
6the de-watering apparatus of gas concentration unit also comprise for SF
6in gas concentration unit, telltale connection makes SF
6pressure in gas concentration unit is not less than the pressure monitor of set(ting)value.
Beneficial effect of the present invention is: described for SF
6the de-watering apparatus of gas concentration unit, comprise condensing works, the storage water-freeing arrangement be connected with condensing works, control to store up the pressure control device of water-freeing arrangement internal pressure, the water-in that storage water-freeing arrangement top being provided with air inlet/outlet for being connected with pressure control device, being connected with condensing works, the water port controlled by the first switch-valve is provided with bottom storage water-freeing arrangement, second switch valve is provided with between storage water-freeing arrangement and condensing works, storage water-freeing arrangement is arranged on the below of condensing works, is starting to reclaim SF
6during gas, the pressure in storage water-freeing arrangement is made to be in negative pressure by pressure control device, SF to be recycled
6water vapour in gas flows to storage water-freeing arrangement by the second switch valve between condensing works and storage water-freeing arrangement after condensing works liquefy water, need the second switch valve of closing during draining between condensing works and storage water-freeing arrangement, the pressure in storage water-freeing arrangement is made to be in malleation by pressure control device, the first switch-valve opened bottom storage water-freeing arrangement realizes draining, draining terminates rear first switch-valve of closing bottom storage water-freeing arrangement, storage water-freeing arrangement internal pressure is made to be in negative pressure by pressure control device, the second switch valve opened between condensing works and storage water-freeing arrangement continues to reclaim SF
6gas.And have a large amount of SF during draining
6gas leakage and can only work under positive pressure traditional for SF
6the de-watering apparatus of gas concentration unit is compared, and de-watering apparatus of the present invention all can normally work under positive/negative-pressure state, and stores up a small amount of SF residual in water-freeing arrangement after only leaking the switch-valve of closing between condensing works and storage water-freeing arrangement during draining
6gas.
Further, described pressure control device comprises vacuum extractor, compressed air-feed device and controls to be arranged on storage water-freeing arrangement and compressed air-feed device, store up the pressure operated switch that the switch-valve between water-freeing arrangement and vacuum extractor opens and closes for the pressure that detects in storage water-freeing arrangement, by vacuum extractor, the pressurized air stored up in water-freeing arrangement extraction can be ensured SF to be recycled
6the purity of gas.
Further, described for SF
6the de-watering apparatus of gas concentration unit also comprises electric control system, and described switch-valve is the electric switching valve controlled by electric control system, can be realized whole for SF by electric control system
6the automated operation of the de-watering apparatus of gas concentration unit.
Further, the de-watering apparatus of described gas concentration unit also comprises heating unit, condensing works is provided with SF to be recycled
6inlet mouth, the SF to be recycled of heating unit and condensing works
6inlet mouth connect, by arrange heating unit to SF to be recycled
6gas heats, the SF to be recycled after heating
6the steam temperature mixed in gas raises, and in follow-up condensing works, condensation is more abundant.
Accompanying drawing explanation
Fig. 1 is that one of the present invention is for SF
6the schematic diagram of the embodiment 1 of the de-watering apparatus of gas concentration unit;
Fig. 2 is that one of the present invention is for SF
6the removal process schematic diagram of the embodiment 1 of the de-watering apparatus of gas concentration unit;
Fig. 3 is that one of the present invention is for SF
6the drainage procedure schematic diagram of the embodiment 1 of the de-watering apparatus of gas concentration unit;
Fig. 4 is that one of the present invention is for SF
6the vacuum schematic diagram of the embodiment 1 of the de-watering apparatus of gas concentration unit.
Embodiment
One of the present invention is used for SF
6the embodiment 1 of the de-watering apparatus of gas concentration unit: as Figure 1-Figure 4, described for SF
6the de-watering apparatus of gas concentration unit comprises heating unit 1, condensing works, storage water-freeing arrangement 6, pressure control device and electric control system, wherein pressure control device comprise vacuum extractor 7, compressed air-feed device 4 and pressure operated switch 51, pressure operated switch 52 and for SF
6in gas concentration unit, telltale connection makes SF
6pressure in gas concentration unit is not less than the pressure monitor of set(ting)value, when pressure monitor detects SF
6when pressure in gas concentration unit is lower than the force value set, SF
6telltale in gas concentration unit can to described for SF
6the de-watering apparatus of gas concentration unit sends the signal reclaiming and terminate.Heating unit 1 is connected with condensing works, and is provided with motorized valve MV1 between heating unit 1 and condensing works; Condensing works comprises unit cooler 2 and drainer 3, is provided with the refrigerant circulation pipe 31 be connected with unit cooler 2 in drainer 3, and drainer 3 is provided with and is connected with heating unit 1 SF being positioned at top, drainer 3 one end
6gas feed, for SF
6gas concentration unit 7 connects the SF being positioned at drainer 3 the other end top
6pneumatic outlet, be positioned at bottom drainer 3 with the water outlet that is connected of storage water-freeing arrangement 6, drainer 3 and store up between water-freeing arrangement 6 and be provided with motorized valve MV3, drainer 3 and SF
6motorized valve MV2 is provided with between gas concentration unit 7; Storage water-freeing arrangement 6 is arranged on the below of drainer 3, storage water-freeing arrangement 6 be provided with to be connected with drainer 3 be positioned at store up water-freeing arrangement 6 top water-in, to be connected with compressed air-feed device 4 be positioned at store up water-freeing arrangement 6 top inlet mouth, to be connected with vacuum extractor 7 be positioned at store up water-freeing arrangement 6 top air outlet, be positioned at the water port of storing up bottom water-freeing arrangement 6, store up between water-freeing arrangement 6 and compressed air-feed device 4 and be provided with motorized valve MV4, store up between water-freeing arrangement 6 and vacuum extractor 7 be provided with motorized valve MV5, water port place is provided with motorized valve MV6.Pressure operated switch 51 detects the pressure in storage water-freeing arrangement 6 and controls motorized valve MV4, and pressure operated switch 52 detects the pressure in storage water-freeing arrangement 6 and controls motorized valve MV5.For SF
6motorized valve and the pressure operated switch of the de-watering apparatus of gas concentration unit control by electric control system.
Fig. 2-Fig. 3 is of the present invention for SF
6the schematic diagram of the workflow of the de-watering apparatus of gas concentration unit, wherein thick lines part represents device and is in starting state.For SF
6the de-watering apparatus of gas concentration unit receives SF
6gas concentration unit 7 reclaims SF
6after gas signal, electric control system automatic control electric moves valve MV1, MV2, MV3 and opens, and heating unit 1, unit cooler 2 start, and the virgin pressure in storage water-freeing arrangement 6 is the negative pressure of setting, the SF containing a large amount of water vapour to be recycled
6gas is from SF to be recycled
6gas tank 9 through heating unit 1 heat after, enter drainer 3 through motorized valve MV1, by arrange heating unit 1 to SF to be recycled
6gas heats, the SF to be recycled after heating
6the steam temperature mixed in gas raises, and in follow-up condensing works, condensation is more abundant.Become liquid water through the cooled steam coagulation of drainer 3, liquid water is stored in the storage water-freeing arrangement 6 below drainer 3 through motorized valve MV3, through the SF dewatered
6gas enters SF through motorized valve MV2
6gas concentration unit 7, when de-watering apparatus is after receiving retrieving arrangement recovery end signal, pressure operated switch 51 detects the force value in storage water-freeing arrangement 6, confirm that storage water-freeing arrangement 6 internal pressure is when being in negative pressure state, electric control system automatic control electric moves valve MV1, MV2, MV3 closes, open motorized valve MV4 simultaneously and be filled with dry pressurized air, after pressure equilibrium, closedown motorized valve MV4 opens motorized valve MV6 simultaneously and is discharged by liquid water; After Auto-drainage has operated, pressure operated switch 52 detects storage water-freeing arrangement 6 force value, after being in zero-pressure state and drain operation in confirmation storage water-freeing arrangement 6 and completing, motorized valve MV6 closes automatically, open vacuum extractor 7 and motorized valve MV5 simultaneously, process is vacuumized to storage water-freeing arrangement 6, by vacuum extractor 7, the pressurized air extraction in storage water-freeing arrangement 6 can be ensured SF to be recycled
6the purity of gas.After pressure operated switch 52 detects that in storage water-freeing arrangement 6 vacuum tightness reaches requirement, motorized valve MV5 closes automatically, and after motorized valve MV5 closes and puts in place, vacuum extractor 7 stops, wholely dewatering, draining, the equal automated operation of vacuum.Of the present invention for SF
6the de-watering apparatus of gas concentration unit all can normally work under positive/negative-pressure state, and stores up a small amount of SF residual in water-freeing arrangement after only leaking the switch-valve of closing between condensing works and storage water-freeing arrangement during draining
6gas, and general technology requires that reclaiming stopping force value is absolute pressure 1330Pa, far below standard atmospheric pressure force value, so SF residual in actual storage water-freeing arrangement
6gas volume is considerably less.In addition, the malleation described in the present embodiment be finger pressure higher than standard atmospheric pressure force value, negative pressure is that pressure is lower than standard atmospheric pressure force value.
One of the present invention is used for SF
6the embodiment 2 of the de-watering apparatus of gas concentration unit: the difference of the present embodiment and embodiment 1 is only: the air inlet/outlet storing up water-freeing arrangement only has one, pressure operated switch only has one, vacuum extractor is connected by the air inlet/outlet of electric three-way valve with storage water-freeing arrangement with compressed air-feed device, and pressure operated switch detects the pressure in storage water-freeing arrangement and controls electric three-way valve.During water storage device water storage, pressure operated switch controls three-way solenoid valve closedown, and storage water-freeing arrangement and compressed air-feed device, vacuum extractor are all disconnected; When storage water-freeing arrangement needs to be filled with pressurized air, pressure operated switch controls three-way solenoid valve and connects storage water-freeing arrangement and compressed air-feed device; When storage water-freeing arrangement needs to vacuumize, pressure operated switch controls three-way solenoid valve and connects storage water-freeing arrangement and vacuum extractor.Other section Example are identical with embodiment 1, repeat no more.
In other embodiments of the invention, can not also heating unit be set; Pressure operated switch described in embodiment 1 can also be one, and simultaneously Controlling solenoid valve MV4 and MV5.
Claims (10)
1. one kind for SF
6the de-watering apparatus of gas concentration unit, the storage water-freeing arrangement comprise condensing works, being connected with condensing works, is characterized in that: described for SF
6the de-watering apparatus of gas concentration unit also comprises the pressure control device controlling storage water-freeing arrangement internal pressure, the water-in that storage water-freeing arrangement top being provided with air inlet/outlet for being connected with pressure control device, being connected with condensing works, the water port that the first switch-valve controls is provided with bottom storage water-freeing arrangement, be provided with second switch valve between storage water-freeing arrangement and condensing works, storage water-freeing arrangement is arranged on the below of condensing works.
2. one according to claim 1 is used for SF
6the de-watering apparatus of gas concentration unit, is characterized in that: described pressure control device comprises vacuum extractor, compressed air-feed device and controls to be arranged on storage water-freeing arrangement and compressed air-feed device, to store up the pressure operated switch that the switch-valve between water-freeing arrangement and vacuum extractor opens and closes for the pressure that detects in storage water-freeing arrangement.
3. one according to claim 2 is used for SF
6the de-watering apparatus of gas concentration unit, it is characterized in that: described air inlet/outlet has two, one is connected with vacuum extractor, another is connected with compressed air-feed device, be provided with the 3rd switch-valve between described storage water-freeing arrangement and vacuum extractor, between storage water-freeing arrangement and compressed air-feed device, be provided with the 4th switch-valve.
4. one according to claim 2 is used for SF
6the de-watering apparatus of gas concentration unit, is characterized in that: described air inlet/outlet only has one, air inlet/outlet with can realize storing up water-freeing arrangement and be connected with the 5th switch-valve connected separately between compressed air-feed device, vacuum extractor respectively.
5. one according to claim 3 is used for SF
6the de-watering apparatus of gas concentration unit, is characterized in that: described pressure operated switch comprises the first pressure operated switch that control the 3rd switch-valve opens and closes and the second pressure operated switch controlling the 4th switch-valve keying.
6. one according to claim 5 is used for SF
6the de-watering apparatus of gas concentration unit, is characterized in that: described for SF
6the de-watering apparatus of gas concentration unit starts to reclaim SF
6during gas, second switch valve is opened, and first and third, four switch-valves cut out, and water vapour enters storage water-freeing arrangement after condensing works liquefy water; When SF is reclaimed in stopping
6during gas, first pressure operated switch detects storage water-freeing arrangement internal pressure, when confirming that detecting storage water-freeing arrangement internal pressure is negative pressure, second switch valve cuts out, 4th switch-valve is opened and be filled with pressurized air in storage water-freeing arrangement, until after the first pressure operated switch detects that pressure reaches set(ting)value, the first pressure operated switch controls the 4th switch-valve and closes, then the first switch-valve is opened, the draining of storage water-freeing arrangement; It is that zero draining completes that second pressure operated switch detects storage water-freeing arrangement internal pressure, and the first switch-valve cuts out, and then the second pressure operated switch controls the 3rd switch-valve unlatching, carries out vacuum pumping to storage water-freeing arrangement.
7. the one according to any one of claim 1-6 is used for SF
6the de-watering apparatus of gas concentration unit, is characterized in that: described SF
6the de-watering apparatus of gas concentration unit also comprises electric control system, and at least one in described switch-valve is the electric switching valve controlled by electric control system.
8. the one according to any one of claim 1-6 is used for SF
6the de-watering apparatus of gas concentration unit, is characterized in that: described condensing works comprises unit cooler and drainer, is provided with the refrigerant circulation pipe be connected with unit cooler in drainer.
9. the one according to any one of claim 1-6 is used for SF
6the de-watering apparatus of gas concentration unit, is characterized in that: described for SF
6the de-watering apparatus of gas concentration unit also comprises heating unit, condensing works is provided with SF to be recycled
6inlet mouth, the SF to be recycled of heating unit and condensing works
6inlet mouth connects.
10. the one according to any one of claim 1-6 is used for SF
6the de-watering apparatus of gas concentration unit, is characterized in that: described for SF
6the de-watering apparatus of gas concentration unit also comprise for SF
6in gas concentration unit, telltale connection makes SF
6pressure in gas concentration unit is not less than the pressure monitor of set(ting)value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510580922.9A CN105129743B (en) | 2015-09-14 | 2015-09-14 | One kind is used for SF6The de-watering apparatus of gas concentration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510580922.9A CN105129743B (en) | 2015-09-14 | 2015-09-14 | One kind is used for SF6The de-watering apparatus of gas concentration unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105129743A true CN105129743A (en) | 2015-12-09 |
| CN105129743B CN105129743B (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510580922.9A Active CN105129743B (en) | 2015-09-14 | 2015-09-14 | One kind is used for SF6The de-watering apparatus of gas concentration unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413258A (en) * | 2018-04-28 | 2018-08-17 | 广东电网有限责任公司 | Air pressure monitoring device and micro-water treatment system of SF6 equipment |
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|---|---|---|---|---|
| CN1243022A (en) * | 1998-07-27 | 2000-02-02 | 三菱电机株式会社 | Method for recovering condensed gas from mixed gas, and recovering apparatus thereof |
| CN1307499A (en) * | 1998-05-26 | 2001-08-08 | 艾拉斯科普库空气动力股份有限公司 | Method and device for cool-drying |
| CN101085675A (en) * | 2006-08-11 | 2007-12-12 | 河南省日立信电子有限公司 | SF6 gas reclaiming purifying device and purifying method |
| CN102173392A (en) * | 2011-01-31 | 2011-09-07 | 平高集团有限公司 | Sulfur hexafluoride gas separation and purification device and purification method thereof |
| CN205076805U (en) * | 2015-09-14 | 2016-03-09 | 河南平高电气股份有限公司 | A water trap for SF6 gas recovery device |
-
2015
- 2015-09-14 CN CN201510580922.9A patent/CN105129743B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307499A (en) * | 1998-05-26 | 2001-08-08 | 艾拉斯科普库空气动力股份有限公司 | Method and device for cool-drying |
| CN1243022A (en) * | 1998-07-27 | 2000-02-02 | 三菱电机株式会社 | Method for recovering condensed gas from mixed gas, and recovering apparatus thereof |
| CN101085675A (en) * | 2006-08-11 | 2007-12-12 | 河南省日立信电子有限公司 | SF6 gas reclaiming purifying device and purifying method |
| CN102173392A (en) * | 2011-01-31 | 2011-09-07 | 平高集团有限公司 | Sulfur hexafluoride gas separation and purification device and purification method thereof |
| CN205076805U (en) * | 2015-09-14 | 2016-03-09 | 河南平高电气股份有限公司 | A water trap for SF6 gas recovery device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413258A (en) * | 2018-04-28 | 2018-08-17 | 广东电网有限责任公司 | Air pressure monitoring device and micro-water treatment system of SF6 equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105129743B (en) | 2018-04-20 |
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