CN109869788A - Big temperature difference heat-exchanger rig - Google Patents
Big temperature difference heat-exchanger rig Download PDFInfo
- Publication number
- CN109869788A CN109869788A CN201711302969.4A CN201711302969A CN109869788A CN 109869788 A CN109869788 A CN 109869788A CN 201711302969 A CN201711302969 A CN 201711302969A CN 109869788 A CN109869788 A CN 109869788A
- Authority
- CN
- China
- Prior art keywords
- water
- steam
- temperature
- heat
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of big temperature difference heat-exchanger rig, and heat supply network high-temperature-hot-water enters after high-temperature evaporator heat release becomes middle warm water, continues heat release into cryogenic vaporizer and becomes low-temperature water heating, low-temperature water heating returns to heat supply network water return pipeline；High-temperature-hot-water flows outside heat exchanger tube from top to bottom in high-temperature evaporator, and heating agent water evaporation generates steam in heat exchanger tube；Low-temperature water heating horizontally flows heat release in heat exchanger tube in cryogenic vaporizer, and the heat medium water outside heat exchanger tube is generated steam by thermal evaporation；There is a steam jet ejector, high-temperature evaporator generates steam as driving steam, and for the steam that cryogenic vaporizer generates as sucking steam, the steam that steam jet ejector outlet sprays enters condenser.The condensed water that condenser generates, a part enter cryogenic vaporizer by throttle valve, and another part enters high-temperature evaporator by water pump pressurization；It is heated to heating circulation water the other side of condenser；The steam condensation side lower part of condenser is equipped with a vacuum pumping opening.
Description
Technical field
The present invention relates to heat power engineerings, more particularly to a kind of big temperature difference heat-exchanger rig.
Background technique
In recent years, with the continuous development of China's urban construction, the contradiction between regional development and heat demand is also increasingly
It highlights.All city cities area is all constantly expanding, and main city zone scale cell is continuously increased, and old town substantially increases newly every year
Area, the area of Xincheng District also constantly expand.From the heat source and heat supply network heat capacity of current city, it much can not meet city
The needs of city's fast development.If heat supply is not caught up with, it will urban development is made to meet with bottleneck.
To solve this concerning the contradiction of urban development and common people's vital interests, various regions generally start centralized heating project
Construction increases area of heat-supply service newly, increases construction investment newly.Specifically include newly-built pipe-networks engineering, the old net improvement project in part, newly-built relaying
Pumping plant, the control centre Ji Kong create heat exchange station and heat exchange station improvement project etc..
Heat supply improvement project is divided into heat source side and heat supply network side.
Heat source side generally comprises unit heat supply transformation and heat supply initial station construction project, specially power plant and power & light company are new
Increase networking area of heat-supply service, Xincheng District boiler room heat supply network area of heat-supply service, district heating company heat supply network area of heat-supply service etc..
Heat supply network side is mainly that the pipeline to extend service in the army to old town is replaced, and can effectively be controlled after heat supply pipeline replacement
Evaporating, emitting, dripping or leaking of liquid or gas processed stops hot number, greatly improves heating effect caused by greatly reducing because of tube leaks.
Central heating is realized in nineteen eighty-three September in certain old town, and pipe network has been run 27 years so far.Through measuring, 1985
10mm when the old pipe network caliber of year installation by installing originally is thinned to 4-6mm, and severe local corrosion, and passes through in heat supply period
Often there is leakage event.Heating network section of tubing has extended service in the army, and often occurs tube leaks phenomenon during heat supply, causes
Heating quality decline.If without transformation, once occur tube leaks, must stage stop heat, this can make resident living
At very big influence.Power & light company's investment is transformed old town heating network, replaces all pipelines being thinned and corrode, changes
About 5 kilometers of range pipe network overall length are made, 570,000 square meter area of heat-supply service are related to, is roughly equal to 5000 family of user, is injected capital into 17,000,000 yuan.Work
After the completion of journey transformation, the stability of the district heating quality and heat supply is greatly improved.By pipe network improving, main city zone heat source fills
Foot, is able to bear the normal heat supply of resident, retail shop and enterprise.
Most of certain power plant's heat supply main pipeline network construction service life, some was even up to 30 years all at 18 years or more.This portion
It is in charge of net since building time is long, along with construction period technical matters falls behind, until making heat preservation, protective layer serious damage, pipe network
Aging, seriously corroded.In recent years, supervisor's net leakage accident frequently occurred, and each runtime occurs tens times.In every submain
During net repairing, repair personnel all suffers from the threat of 95 DEG C or more high pressures, high-temperature water, and repairing sluices all small up to more than 30 every time
When, cause large area residential building to stop heat, the serious situation of part underground pipe network bursting by freezing.Existing in terms of central heating secondary network
Problem is also more prominent, especially early stage building and pipe abandon arcola room heat supply building grid-connected in recent years, pipe network aging corrosion
As many as the weight of degree, quantity have seriously threatened city heat supply safety and have influenced the normal life of resident.
Certain 666 kilometers of heat supply group heating network length, wherein primary net is 165 kilometers long, secondary network is 501 kilometers long.
About 400 kilometers of construction before 1995.Since most of pipeline network construction times are long, aging seriously corroded, cause pipe network system
Evaporating, emitting, dripping or leaking of liquid or gas is extremely serious, and radiation loss reaches 0.35 giggio/square metre year.Every kilometer of heat distribution pipe network average temperature drop is all 2
DEG C or more, the pipe network system percentage of water loss that is averaged is about 3%.Since fluid loss is big, heat is lost seriously, almost all of primary net,
The hydraulic misadjustment problem of secondary network all various degrees, since pipe network aging is adjusted without forensic science again, heating enterprise
In the heating quality for hankering being difficult to ensure user.
In decades, central heating cause is that the development construction in China city and the raising of living standards of the people are made that weight
Big contribution.Nowadays the central heating network aging of large area, seriously corroded have become the outstanding problem for influencing central heating, sternly
Threaten again city for thermally safe and common people's normal life.
Implementing central heating network transformation has been to carry out the task of top priority of city heat supply work.It can be significantly by pipe network improving
The evaporating, emitting, dripping or leaking of liquid or gas of pipe network is reduced, reduction energy consumption is energy saving, improves energy utilization rate；Heat supply can be made to look forward to by pipe network improving
Sparetime university's amount uses of the new technology, new process, improves the scientific regulating power of heating enterprise, it is horizontal to improve whole heat supply；Pass through pipe network
Transformation can General Promotion heating system safety and heat supply supportability, the use thermal mass of numerous residents is continuously improved, benefits
The common people.Implementing central heating network transformation is the act benefited the nation and the people, early to implement early be benefited.
Implement central heating network improvement project, emphasis is exactly to remove waste and old heat supply pipeline, is laid with the new pipeline of heat supply, this is needed
Put into huge fund.How to accomplish using existing pipeline, or less or thinner pipeline can be laid with, only spends less
Investment, equally can achieve the heating load of needs? this is design and construction scientific worker the problem of often thinking deeply.
Summary of the invention
For creating or old heating network being transformed, solve the problems, such as that the generally existing heating load of heating network is insufficient, this
Invention provide it is a kind of can reduce heat supply network return water temperature, to increase the big temperature difference heat-exchanger rig of heating network heating load.
A kind of big temperature difference heat-exchanger rig, its structure include: the high-temperature evaporator in left side, the condenser on right side, middle and lower part
Cryogenic vaporizer, valve, water pump and some connecting lines；
Heat supply network high-temperature-hot-water enters after high-temperature evaporator heat release becomes middle warm water, continues heat release into cryogenic vaporizer and becomes
At low-temperature water heating, low-temperature water heating returns to heat supply network water return pipeline；
High-temperature evaporator is the shell and tube exchanger stood up, and high-temperature-hot-water is flowed outside heat exchanger tube from top to bottom, changed
Heat pipe internal heating matchmaker's water evaporation generates steam and exports from high-temperature evaporator upper steam and flows out；
Cryogenic vaporizer is a horizontal shell and tube exchanger, and low-temperature water heating horizontally flows heat release in heat exchanger tube,
By thermal evaporation, steam flows out heat medium water outside heat exchanger tube from top venthole；
The condensed water that condenser generates, a part enter cryogenic vaporizer by throttle valve, and another part is added by water pump
It is pressed into high-temperature evaporator；It is heated to heating circulation water the other side of condenser；The steam condensation side lower part of condenser is equipped with one
A vacuum pumping opening.
The big temperature difference heat-exchanger rig, its structure further include a steam jet ejector, and high-temperature evaporator generates steam and makees
To drive steam, into steam jet ejector, the steam that cryogenic vaporizer generates enters the suction chamber of steam jet ejector, steam injection
The steam that device outlet sprays enters condenser.
Detailed description of the invention
Fig. 1 is the overall pattern of big temperature difference heat-exchanger rig embodiment of the invention.
Specific embodiment
With reference to the accompanying drawings and examples, present invention is further described in detail.
Fig. 1 gives the overall pattern of big temperature difference heat-exchanger rig embodiment of the invention.
The overall structure of the big temperature difference heat-exchanger rig embodiment of the present invention, its construction include: high-temperature evaporator 100, low temperature
Evaporator 400, condenser 300, steam jet ejector 200, several valves, water pump and some connecting lines.In shape, from a left side to
The right side is divided into four bulks: 1, vertical high-temperature evaporator 100；2, horizontal cryogenic vaporizer 400；3, vertical condenser 300,
4, steam jet ejector 200, it is horizontally disposed between high-temperature evaporator 100, cryogenic vaporizer 400 and condenser 300.
Its workflow is
1, the high-temperature-hot-water of waterpipe is carried out from heating network, is flowed into from heat supply network water inlet 101, into high-temperature evaporator
100；
2, high-temperature evaporator 100 is a shell and tube exchanger, high-temperature-hot-water in the shell of high-temperature evaporator 100, by
Top to bottm flows outside heat exchanger tube, heating agent water evaporation in heat exchanger tube, generates steam from 100 upper steam outlet stream of high-temperature evaporator
Out, as driving steam, into steam jet ejector 200；
3, high-temperature-hot-water after flowing heat release from top to bottom, becomes low-temperature water heating, from height in 100 shell of high-temperature evaporator
The lower part of the housing side exit of warm evaporator 100 flows out, into cryogenic vaporizer 400；
4, cryogenic vaporizer 400 is a shell and tube exchanger, and low-temperature water heating flows in the heat exchanger tube of cryogenic vaporizer 400
Dynamic heat release, delivers heat to the heat medium water outside heat exchanger tube, after the low-temperature water heating heat release in heat exchanger tube, by outlet pipe, water outlet 401,
Return to the water return pipeline of heating network；
5,100 upper steam of high-temperature evaporator outlet outflow high-temperature steam, as driving steam, into steam jet ejector
200, it is sprayed by nozzle, generates low-voltage space in steam jet ejector 200, thus outside 400 heat exchanger tube of injection cryogenic vaporizer
The steam that generates of heating agent water evaporation, finally, driving steam and jetting steam caused mixing, and enter the steam of condenser 300 together
Condense side；
6, the condensed water that condenser 300 generates, a part enters cryogenic vaporizer 400 by throttle valve 401, supplements low temperature
400 evaporation loss of evaporator, another part enter high-temperature evaporator 100 by water pump 102, and supplement high-temperature evaporator 100 evaporates
Loss；
7, the other side of condenser 300 is heated to heating circulation water, and heating water return enters from water return outlet 302, after being heated,
It is flowed out from heating water outlet 301, for heating to heat user；
8, the steam condensation side lower part side wall of condenser 300 is equipped with a vacuum pumping opening 303, using aspiration pump, takes out
The on-condensible gases such as air remaining in steam condensation side out, maintain the vacuum degree of whole device.
Claims (1)
1. a kind of big temperature difference heat-exchanger rig, its structure includes: the high-temperature evaporator in left side, the condenser on right side, middle and lower part
Cryogenic vaporizer, valve, water pump and some connecting lines；Heat supply network high-temperature-hot-water enters high-temperature evaporator heat release and becomes middle warm water
Afterwards, continue heat release into cryogenic vaporizer and become low-temperature water heating, low-temperature water heating returns to heat supply network water return pipeline；High-temperature evaporator is one
A shell and tube exchanger stood up, high-temperature-hot-water flow outside heat exchanger tube from top to bottom, heating agent water evaporation in heat exchanger tube, generate steaming
Vapour is exported from high-temperature evaporator upper steam to flow out；Cryogenic vaporizer is a horizontal shell and tube exchanger, and low-temperature water heating exists
Heat release is horizontally flowed in heat exchanger tube, the heat medium water outside heat exchanger tube is flowed out by thermal evaporation, steam from top venthole；Condenser produces
Raw condensed water, a part enter cryogenic vaporizer by throttle valve, and another part enters high-temperature evaporator by water pump pressurization；
It is heated to heating circulation water the other side of condenser；The steam condensation side lower part of condenser is equipped with a vacuum pumping opening, special
Sign is: the big temperature difference heat-exchanger rig, its structure further includes a steam jet ejector, and high-temperature evaporator generates steam conduct
Steam is driven, into steam jet ejector, the steam that cryogenic vaporizer generates enters the suction chamber of steam jet ejector, steam jet ejector
The steam that outlet sprays enters condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302969.4A CN109869788A (en) | 2017-12-02 | 2017-12-02 | Big temperature difference heat-exchanger rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302969.4A CN109869788A (en) | 2017-12-02 | 2017-12-02 | Big temperature difference heat-exchanger rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109869788A true CN109869788A (en) | 2019-06-11 |
Family
ID=66916832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711302969.4A Pending CN109869788A (en) | 2017-12-02 | 2017-12-02 | Big temperature difference heat-exchanger rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109869788A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440502A (en) * | 2016-11-28 | 2017-02-22 | 哈尔滨工大金涛科技股份有限公司 | Blast furnace slag-washing water waste heat refrigerating device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231004A (en) * | 2008-02-28 | 2008-07-30 | 清华大学 | Large temperature-difference central heating system |
| CN205690489U (en) * | 2016-05-27 | 2016-11-16 | 哈尔滨工大金涛科技股份有限公司 | Direct-connected big temperature difference heat-exchanger rig |
| CN205717456U (en) * | 2016-03-08 | 2016-11-23 | 哈尔滨工大金涛科技股份有限公司 | Big temperature difference heat-exchanger rig |
| CN106369654A (en) * | 2016-11-28 | 2017-02-01 | 哈尔滨工大金涛科技股份有限公司 | Large-temperature-difference heat exchange device for Freon |
| CN206207789U (en) * | 2016-11-28 | 2017-05-31 | 哈尔滨工大金涛科技股份有限公司 | Blast furnace slag quenching water heat refrigeration apparatus |
| CN106839049A (en) * | 2015-12-05 | 2017-06-13 | 哈尔滨工大金涛科技股份有限公司 | The big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type |
| CN107166475A (en) * | 2016-03-08 | 2017-09-15 | 哈尔滨工大金涛科技股份有限公司 | Big temperature difference heat-exchange method and big temperature difference heat-exchanger rig |
| CN207990747U (en) * | 2017-12-02 | 2018-10-19 | 哈尔滨工大金涛科技股份有限公司 | Big temperature difference heat-exchanger rig |
-
2017
- 2017-12-02 CN CN201711302969.4A patent/CN109869788A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231004A (en) * | 2008-02-28 | 2008-07-30 | 清华大学 | Large temperature-difference central heating system |
| WO2009105930A1 (en) * | 2008-02-28 | 2009-09-03 | 清华大学 | A kind of concentrated heat-supply system |
| CN106839049A (en) * | 2015-12-05 | 2017-06-13 | 哈尔滨工大金涛科技股份有限公司 | The big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type |
| CN205717456U (en) * | 2016-03-08 | 2016-11-23 | 哈尔滨工大金涛科技股份有限公司 | Big temperature difference heat-exchanger rig |
| CN107166475A (en) * | 2016-03-08 | 2017-09-15 | 哈尔滨工大金涛科技股份有限公司 | Big temperature difference heat-exchange method and big temperature difference heat-exchanger rig |
| CN205690489U (en) * | 2016-05-27 | 2016-11-16 | 哈尔滨工大金涛科技股份有限公司 | Direct-connected big temperature difference heat-exchanger rig |
| CN106369654A (en) * | 2016-11-28 | 2017-02-01 | 哈尔滨工大金涛科技股份有限公司 | Large-temperature-difference heat exchange device for Freon |
| CN206207789U (en) * | 2016-11-28 | 2017-05-31 | 哈尔滨工大金涛科技股份有限公司 | Blast furnace slag quenching water heat refrigeration apparatus |
| CN207990747U (en) * | 2017-12-02 | 2018-10-19 | 哈尔滨工大金涛科技股份有限公司 | Big temperature difference heat-exchanger rig |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440502A (en) * | 2016-11-28 | 2017-02-22 | 哈尔滨工大金涛科技股份有限公司 | Blast furnace slag-washing water waste heat refrigerating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6983770B2 (en) | Regional thermal energy distribution system | |
| CN205048524U (en) | Temperature of heat supply network return water is reduced big difference in temperature heat transfer device | |
| CN107166475A (en) | Big temperature difference heat-exchange method and big temperature difference heat-exchanger rig | |
| CN104048161B (en) | A kind of combined vaporizing device of liquified natural gas (LNG) | |
| CN108644747B (en) | It is a kind of to utilize super pressure-high temperature vapour system in the generation of dyeing waste water waste heat | |
| CN105972681B (en) | Water resource heat pump-steam turbine combining heating system complementary with heat supply network | |
| ITAN20120049A1 (en) | SYSTEM FOR GENERATION OF ELECTRICITY AND ITS METHOD. | |
| CN205690489U (en) | Direct-connected big temperature difference heat-exchanger rig | |
| CN103115388B (en) | Thermal power plant circulating water heat supply system | |
| CN106839049A (en) | The big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type | |
| CN207990747U (en) | Big temperature difference heat-exchanger rig | |
| CN104180557B (en) | Cogeneration, combined cooling and power and the dual-purpose co-feeding system of thermoelectric cold electricity | |
| CN205717456U (en) | Big temperature difference heat-exchanger rig | |
| CN203022791U (en) | Mine return air heat energy utilizing device based on original diffusion tower | |
| CN109869788A (en) | Big temperature difference heat-exchanger rig | |
| CN204962942U (en) | Carbon dioxide heat pump heating device | |
| CN204830120U (en) | Carbon dioxide heat pump heating device | |
| CN107461958A (en) | One kind utilizes jet type heat pump recovery chemical fertilizer factory gas making water residual heat system | |
| CN105546343B (en) | A kind of utilization solar heat pump gasification LNG system and method | |
| CN204420978U (en) | A kind of energy saving drainage system of boiler hydrophobic development unit | |
| CN206207532U (en) | The big temperature difference heat-exchanger rig of freon | |
| CN106152230A (en) | Reduce big temperature difference heat-exchange method and the device of heat supply network return water temperature | |
| CN106369654A (en) | Large-temperature-difference heat exchange device for Freon | |
| CN107421147A (en) | A kind of device for recycling heat energy of steam condensed | |
| CN205664460U (en) | Big difference in temperature heat transfer device of injection formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |