CN102230678B - Automatic pressure stabilization device of high-temperature heat collection system - Google Patents
Automatic pressure stabilization device of high-temperature heat collection system Download PDFInfo
- Publication number
- CN102230678B CN102230678B CN2011101139817A CN201110113981A CN102230678B CN 102230678 B CN102230678 B CN 102230678B CN 2011101139817 A CN2011101139817 A CN 2011101139817A CN 201110113981 A CN201110113981 A CN 201110113981A CN 102230678 B CN102230678 B CN 102230678B
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- Prior art keywords
- expansion drum
- pipeline
- pressure
- temperature heat
- heat collection
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- 230000006641 stabilisation Effects 0.000 title abstract description 7
- 238000011105 stabilization Methods 0.000 title abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 73
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims description 25
- 239000007789 gas Substances 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012354 overpressurization Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention belongs to a pressure stabilization device in the field of high-temperature heat collection systems and provides an automatic pressure stabilization device of the high-temperature heat collection system. The automatic pressure stabilization device comprises an expansion tank, a storage vat, a nitrogen tank group and a main circulation pipe, wherein the storage vat is communicated with the expansion tank through a pipeline with a replenishment pump; the nitrogen tank group is communicated with the expansion tank through a pipeline with a pressure reduction valve; the main circulation pipe is communicated with the output end of the expansion tank; a heating coiler is arranged in the storage vat; liquidometers are arranged in the expansion tank and the storage vat respectively; the pipeline between the storage vat and the expansion tank is provided with a medium replenishment electromagnetic valve; the pipeline between the expansion tank and the pressure reduction valve is provided with a nitrogen replenishment electromagnetic valve; and the medium replenishment electromagnetic valve and the nitrogen replenishment electromagnetic valve are connected with a pressure transmitter for measuring pressure in the expansion tank respectively. The automatic pressure stabilization device realizes the functions of automatically filling, replenishing heat-carrying media, discharging excessive pressurization gas and the like to stabilize the pressure of the high-temperature heat collection system and has an emergent cooling function.
Description
Technical field
The present invention relates to automatic voltage regulator, especially a kind of high-temperature heat collection system automatic voltage regulator.
Background technology
High-temperature heat collection system is applied to solar energy high-temperature heat collection generating, field of petrochemical industry, and its operation principle is to utilize medium heat-carrying and conduct high temperature.The general medium that uses can be conduction oil, water or fused salt, absorbs heat the back to hot process from cold conditions when MEDIA FLOW is crossed heat collector, and volume can produce certain expansion; System pressure raises, and the part medium entering pipe network of can vaporizing is if untimely eliminating can form vapour lock; Amass in the thermal-arrest organ pipe, media flow in the influence pipe worsens the heat collector heat-carrying capacity; Local dry burning and booster threaten system safety operation.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency; A kind of high-temperature heat collection system automatic voltage regulator is provided; Can in high-temperature heat collection system, play automatically and fill, mend the damage heat-carrying agent, discharge the effect of systems stabilisation pressure such as overpressurization gas, and possess emergent refrigerating function.
For achieving the above object; The present invention provides a kind of high-temperature heat collection system automatic voltage regulator; Comprise expansion drum, storage tank, nitrogen pot group and major cycle pipe, storage tank is communicated with expansion drum through the pipeline that is provided with replenishment pump, and the nitrogen pot group is communicated with expansion drum through the pipeline that is provided with pressure-reducing valve; The major cycle pipe is communicated with the output of expansion drum, is provided with heat(ing) coil in the storage tank.Wherein, in expansion drum and the storage tank liquid level gauge is set respectively; Pipeline between storage tank and the expansion drum is provided with medium supply magnetic valve; Pipeline between expansion drum and the pressure-reducing valve is provided with mends the nitrogen magnetic valve; Medium supply magnetic valve connects with the pressure transmitter of measuring the expansion drum internal pressure respectively with benefit nitrogen magnetic valve.
And, between said storage tank and the expansion drum flowmeter is set.
And said liquid level gauge is a ultrasonic level gage, and said flowmeter is a ultrasonic flowmeter.
And said expansion drum upper end is provided with the pipeline of band exhaust solenoid valve, and exhaust solenoid valve connects with the pressure transmitter of its switching of control.
And said expansion drum upper end is provided with the pipeline of band safety valve, and safety valve connects with the pressure transmitter of its switching of control.
And said expansion drum bottom is provided with the pipeline that medium reclaims magnetic valve, and pipeline is communicated with storage tank; But said automatic voltage regulator is provided with control medium and reclaims the electric control room that magnetic valve opens and closes.
And said expansion drum bottom also is provided with the pipeline of band blowdown magnetic valve, and the blowdown magnetic valve connects with the electric control room of its switching of control.
And said major cycle pipe is provided with gas-liquid separator; The output channel of said expansion drum is provided with expansion tube, and is communicated with gas-liquid separator; The blast pipe of said gas-liquid separator is communicated with expansion drum.
The present invention mainly can play automatically in high-temperature heat collection system and fill, mends the damage heat-carrying agent, discharges the effect of systems stabilisation pressure such as overpressurization gas.Can store the unnecessary thermophore in back that expands, and in running, use the media of inert gas as steady pressure, outside air capable of blocking contacts with heat-carrying agent, heat-carrying agent oxidation deterioration in the anti-locking system, the service life of prolongation system heat-carrying agent.Can be automatically effectively separate and discharge the hazardous gas composition in the high-temperature medium, avoid taking out of circulating pump mouthful to produce a cavitation, avoid pipeline to produce the stagnation of the circulation of vital energy, prevent systematic failures property vaporization phenomenons such as leaking booster.When running into unexpected power failure, can a certain amount of heat-carrying agent of keeping in be added in the system, play the effect of emergent buffering.The present invention is as apparatus for vapour-cooling and Natural Circulation, and the level pressure value of control system fluctuates in allowed band, guarantees that the stable of system pressure normally moves with device security, to satisfy the technological requirement of follow-up equipment.
Description of drawings
Fig. 1 is a sketch map of the present invention.
Wherein, 1, expansion drum, 2, storage tank, 3, the nitrogen pot group, 4, pressure transmitter, 5, ultrasonic level gage; 6, ultrasonic level gage, 7, electric control room, 8, ultrasonic flowmeter, 9, replenishment pump, 10, gas-liquid separator, 11, heat(ing) coil; 12, pressure-reducing valve, 13, medium supply magnetic valve, 14, mend the nitrogen magnetic valve, 15, exhaust solenoid valve, 16, safety valve; 17, medium reclaims magnetic valve, and 18, the blowdown magnetic valve, 19, the major cycle pipe, 20, expansion tube, 21, blast pipe.Chain-dotted line is represented the relation of electrically connecting among the figure.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Scheme provided by the invention is, a kind of high-temperature heat collection system automatic voltage regulator is as shown in Figure 1; Comprise expansion drum 1, storage tank 2, nitrogen pot group 3 and major cycle pipe 19, storage tank 2 is communicated with expansion drum 1 through the pipeline that is provided with replenishment pump 9, and nitrogen pot group 3 is communicated with expansion drum 1 through the pipeline that is provided with pressure-reducing valve 12; Major cycle pipe 19 is communicated with the output of expansion drum 1, is provided with heat(ing) coil 11 in the storage tank 2, wherein; Expansion drum 1 is provided with ultrasonic level gage 5, and ultrasonic level gage 6 is set in the storage tank 2; Pipeline between storage tank 2 and the expansion drum 1 is provided with medium supply magnetic valve 13; Pipeline between expansion drum 1 and the pressure-reducing valve 12 is provided with mends nitrogen magnetic valve 14; Medium supply magnetic valve 13 connects with the pressure transmitter 4 of measuring expansion drum 1 internal pressure respectively with benefit nitrogen magnetic valve 14.
Between storage tank 2 and the expansion drum 1 ultrasonic flowmeter 8 is set.
Expansion drum 1 upper end is provided with the pipeline of band exhaust solenoid valve 15, and exhaust solenoid valve 15 connects with the pressure transmitter 4 of its switching of control.
Expansion drum 1 upper end is provided with the pipeline of band safety valve 16, and safety valve 16 connects with the pressure transmitter 4 of its switching of control.
Expansion drum 1 bottom is provided with the pipeline that medium reclaims magnetic valve 17, and pipeline is communicated with storage tank 2; But said automatic voltage regulator is provided with control medium and reclaims the electric control room 7 that magnetic valve 17 opens and closes.
Expansion drum 1 bottom also is provided with the pipeline of band blowdown magnetic valve 18, and blowdown magnetic valve 18 connects with the electric control room 7 of its switching of control.
Operation principle is following.
Medium fills: after medium injects storage tank 2; The liquid level of 6 pairs of media of ultrasonic level gage is responded in the storage tank 2; Show that the normal back of liquid level starts 11 pairs of media of electrical heating coil pipe and heats, manually boot 9 pairs of systems of replenishment pump and fill, after expansion drum 1 interior ultrasonic level gage 5 indications are normal; Manually stop replenishment pump 9, and open benefit nitrogen magnetic valve 14 by pressure transmitter 4 controls and in expansion drum 1, mend nitrogen.Nitrogen by nitrogen pot group 3 in pressure-reducing valve 12 flow to expansion drum 1.After additional nitrogen reached upper limit pressure, pressure transmitter 4 controls were mended nitrogen magnetic valve 14 and are closed.
Automatically mend medium: when pressure drops to threshold pression when following, pressure transmitter 4 control medium supply magnetic valves 13 are opened and are started replenishment pump 9, and medium is additional to expansion drum 1 in from storage tank 2.The medium liquid level raises in the expansion drum 1, with the volume compression of nitrogen, makes pressure raise.When pressure is elevated to the upper limit pressure when above, pressure transmitter 4 control medium supply magnetic valves 12 cut out and stop replenishment pump 7.The increment of medium can detect metering through ultrasonic flowmeter 5.
Automatically mend nitrogen: because leakage or other loss possibly appear in nitrogen, so the nitrogen amount in the expansion drum 1 possibly reduce gradually.During insufficient pressure, system can be in trend expansion drum 1 the supply medium, make pressure maintain certain value.When the medium liquid level reaches the upper limit liquid level of ultrasonic level gage 8 control, and the pressure in the expansion drum 1 is not when still reaching upper limit pressure, and ultrasonic level gage 8 provides signal, and pressure transmitter 4 controls are opened and mended nitrogen magnetic valve 13 additional nitrogen to expansion drum 1 in.After expansion drum 1 internal pressure reached upper limit pressure, pressure transmitter 4 controls were mended nitrogen magnetic valve 13 and are closed.
Automatic vent: when liquid level in the expansion drum 1 drops to the qualification liquid level of ultrasonic level gage 5; Ultrasonic level gage 5 sends signal; Exhaust solenoid valve 15 is opened in electric control box 7 controls; After discharging unnecessary gas (comprising steam and nitrogen) entering water seal cooling recovery, liquid level is recovered normally in the expansion drum 1.
Automatic pollution discharge: when liquid level in the expansion drum 1 surpassed the upper limit liquid level that ultrasonic level gage 5 shows, electric control box 7 received that signal that ultrasonic level gage 5 sends and control opens medium and reclaim magnetic valve 17, lets out unnecessary medium and gets back to storage tank 2.If the ultrasonic level gage in the storage tank 26 shows that electric control room 7 was opened blowdown magnetic valve 18 when liquid level was high, discharge unnecessary medium through blow-off pipe.
Overvoltage is protected automatically: when the pressure of expansion drum 1 is vaporized, mends in the excessive or major cycle pipe 19 of nitrogen factors such as constricted flow power is excessive because of thermal expansion, flow boiling; And the pressure that causes pressure transmitter 4 surpasses when limiting pressure; Pressure transmitter 4 jointly controls with electric control box 7 opens exhaust solenoid valve 15, safety valve 16, medium recovery magnetic valve 17, blowdown magnetic valve 18; Quick air releasing is let out dirt simultaneously, and expansion drum 1 internal pressure is descended, and reaches the purpose of protection system.
The emergent cooling medium that replenishes during accident: when solar energy high-temperature heat collection system power failure termination of pumping; Replenishment pump 9 can not replenish medium in expansion drum 1; But be in opening after only mending nitrogen magnetic valve 14 and safety valve 16 dead electricity; Be that nitrogen pot group 3 can constantly be replenished nitrogen in expansion drum 1, utilize nitrogen gas pressure to make the medium in the expansion drum 1 flow to system pipe network fully, play emergent purpose of replenishing cooling medium.
Execute in the example above-mentioned, replenishment pump 9 is a hand switch in the medium filling process only, and it is automatic control in other processes.
Claims (6)
1. high-temperature heat collection system automatic voltage regulator; Comprise expansion drum, storage tank, nitrogen pot group and major cycle pipe; Storage tank is communicated with expansion drum through the pipeline that is provided with replenishment pump, and the nitrogen pot group is communicated with expansion drum through the pipeline that is provided with pressure-reducing valve, and the major cycle pipe is communicated with the output of expansion drum; Be provided with heat(ing) coil in the storage tank, it is characterized in that: liquid level gauge is set respectively in expansion drum and the storage tank; Pipeline between storage tank and the expansion drum is provided with medium supply magnetic valve; Pipeline between expansion drum and the pressure-reducing valve is provided with mends the nitrogen magnetic valve; Medium supply magnetic valve connects with the pressure transmitter of measuring the expansion drum internal pressure respectively with benefit nitrogen magnetic valve; The expansion drum upper end is provided with the pipeline of band exhaust solenoid valve, and exhaust solenoid valve connects with the pressure transmitter of its switching of control; The expansion drum upper end also is provided with the pipeline of band safety valve, and safety valve connects with the pressure transmitter of its switching of control.
2. high-temperature heat collection system automatic voltage regulator according to claim 1 is characterized in that: on the pipeline between said storage tank and the expansion drum flowmeter is set.
3. high-temperature heat collection system automatic voltage regulator according to claim 2 is characterized in that: said liquid level gauge is a ultrasonic level gage, and said flowmeter is a ultrasonic flowmeter.
4. high-temperature heat collection system automatic voltage regulator according to claim 1 is characterized in that: said expansion drum bottom is provided with the pipeline that medium reclaims magnetic valve, and pipeline is communicated with storage tank; But said automatic voltage regulator is provided with control medium and reclaims the electric control room that magnetic valve opens and closes.
5. high-temperature heat collection system automatic voltage regulator according to claim 4 is characterized in that: said expansion drum bottom also is provided with the pipeline of band blowdown magnetic valve, and the blowdown magnetic valve connects with the electric control room of its switching of control.
6. high-temperature heat collection system automatic voltage regulator according to claim 1 is characterized in that: said major cycle pipe is provided with gas-liquid separator; The output channel of said expansion drum is provided with expansion tube, and is communicated with gas-liquid separator; The blast pipe of said gas-liquid separator is communicated with expansion drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101139817A CN102230678B (en) | 2011-05-04 | 2011-05-04 | Automatic pressure stabilization device of high-temperature heat collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101139817A CN102230678B (en) | 2011-05-04 | 2011-05-04 | Automatic pressure stabilization device of high-temperature heat collection system |
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| Publication Number | Publication Date |
|---|---|
| CN102230678A CN102230678A (en) | 2011-11-02 |
| CN102230678B true CN102230678B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101139817A Expired - Fee Related CN102230678B (en) | 2011-05-04 | 2011-05-04 | Automatic pressure stabilization device of high-temperature heat collection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107120673A (en) * | 2017-05-11 | 2017-09-01 | 无锡华光新动力环保科技股份有限公司 | Low temperature SCR denitration and flue gas take off white device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5523806A (en) * | 1978-08-03 | 1980-02-20 | Agency Of Ind Science & Technol | Solar heat collecting apparatus |
| JPS5765544A (en) * | 1980-10-11 | 1982-04-21 | Takasago Thermal Eng Co Lts | Hot water producing apparatus utilizing solar heat |
| CN2121640U (en) * | 1992-04-20 | 1992-11-11 | 济南市长清张夏水暖器材厂 | High-low pressure expansion tank automatic stead pressure feed water device |
| CN2399605Y (en) * | 1999-11-29 | 2000-10-04 | 魏凯明 | Limit pressure water feeding equipment |
| NZ542124A (en) * | 2003-04-11 | 2007-05-31 | Rheem Australia Pty Ltd | A protection system for a solar water heating system |
| CN201032392Y (en) * | 2007-04-24 | 2008-03-05 | 中国石油天然气股份有限公司 | Heat medium heater expanding tank nitrogen enveloping pressure regulator |
| CN102021256A (en) * | 2010-12-29 | 2011-04-20 | 北京京诚科林环保科技有限公司 | Circulating cooling water system of blast-furnace tuyere small sleeve |
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Denomination of invention: Automatic pressure stabilization device of high-temperature heat collection system Effective date of registration: 20141028 Granted publication date: 20120704 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Wuhan Zhongsheng Energy Environmental Protection Engineering Co., Ltd. Registration number: 2014990000899 |
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Date of cancellation: 20150929 Granted publication date: 20120704 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Wuhan Zhongsheng Energy Environmental Protection Engineering Co., Ltd. Registration number: 2014990000899 |
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Address after: 430074 Hubei province Wuhan city road two Guanshan East Lake Development Zone International Business Center No. 1 building 404 Juxian. Patentee after: Hubei Zhongsheng water Limited by Share Ltd Address before: 430074 Hubei province Wuhan city road two Guanshan East Lake Development Zone International Business Center No. 1 building 404 Juxian. Patentee before: Wuhan Zhongsheng Energy Environmental Protection Engineering Co., Ltd. |
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Denomination of invention: Automatic pressure stabilization device of high-temperature heat collection system Effective date of registration: 20151214 Granted publication date: 20120704 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Hubei Zhongsheng water Limited by Share Ltd Registration number: 2015420000029 |
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Date of cancellation: 20161129 Granted publication date: 20120704 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Hubei Zhongsheng water Limited by Share Ltd Registration number: 2015420000029 |
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Denomination of invention: Automatic pressure stabilization device of high-temperature heat collection system Effective date of registration: 20161130 Granted publication date: 20120704 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Hubei Zhongsheng water Limited by Share Ltd Registration number: 2016420000051 |
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Date of cancellation: 20181210 Granted publication date: 20120704 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Hubei Zhongsheng water Limited by Share Ltd Registration number: 2016420000051 |
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