CN205897300U - Big difference in temperature heating system of distributing type - Google Patents
Big difference in temperature heating system of distributing type Download PDFInfo
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- CN205897300U CN205897300U CN201620637169.2U CN201620637169U CN205897300U CN 205897300 U CN205897300 U CN 205897300U CN 201620637169 U CN201620637169 U CN 201620637169U CN 205897300 U CN205897300 U CN 205897300U
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- return water
- heat
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Abstract
The utility model discloses a big difference in temperature heating system of distributing type relates to the big difference in temperature heat supply field of coal -fired steam power plant, include: once the net supplies wet return, high -temperature return water vacuum flasher, low temperature return water vacuum flasher, steam -jet ejector formula heat pump nozzle, low pressure steam to accept room, mixing chamber, diffusion room, heat exchanger I, heat exchanger II, secondary network wet return and low temperature return water conveyer pipe, the beneficial effects of the utility model are that: can acquire the heat in the low temperature return water with very low running cost, reduce the interior plate heat exchanger of second grade heat exchange station and once net the return water temperature of side to widen the confession of once netting and rise again poorly, increase the heat load of the circulating water once netted, improve the transmission & distribution efficiency of once netting.
Description
Technical field
The utility model is related to a kind of distributed great temperature difference heat supply system, belongs to Hazards in Power Plant great temperature difference heat supply field.
Background technology
With the constantly improve of the attention to UTILIZATION OF VESIDUAL HEAT IN for the people and relevant art, the higher waste heat of grade is (as high temperature cigarette
Gas) mostly obtain effectively utilizes.And for the low temperature exhaust heat that grade is low, quantity is big, such as circulating cooling water of power plant waste heat, combustion gas
The condensation heat of flue gas of boiler or gas turbine and some industrial low-grade remaining heats etc., the research and development of its effectively utilizes technology are still one
Problem urgently to be resolved hurrily.Why the recycling difficulty of low grade residual heat is high, and reason of searching to the bottom is exactly these waste heats and confession
The taste of heat requires to mismatch.If the big temperature difference of Hazards in Power Plant can be used in and supplies using the taste of correlation technique lifting low temperature exhaust heat
Hot aspect, can greatly improve efficiency of energy utilization.
Great temperature difference heat supply technology refers to make a pipe network return water temperature be reduced to less than 30 DEG C at secondary heat exchange station, widens
Confession, backwater temperature difference, therefore referred to as great temperature difference heat supply technology.Because heat supply network return water temperature is reduced to less than 30 DEG C, can be more
Easily reclaim plant condenser waste heat, thus laying the foundation for improving system energy utilization ratio.Secondary heat exchange station big temperature difference skill
Art is suggested for many years, but real enforcement is still less, and technical bottleneck here mainly has two, and one is traditional big temperature difference
Heat transfer technology transformation needs to use absorption heat pump, and the floor space of absorption heat pump is larger deposits for traditional heat exchange station
In the difficult problem failing to lay down;Two is to need electronic or steam-operating power source using absorption heat pump, and for a built heat exchange
For standing, extra electric load is provided to drive absorption heat pump substantially can not possibly implement.In addition the electronic load of increase is also
Heat exchange cost increase.
Utility model content
In order to solve above-mentioned technical deficiency, the utility model discloses a kind of distributed great temperature difference heat supply system.
The utility model be the technical scheme is that a kind of distributed great temperature difference heat supply system, comprising: once net supplies back
Water pipe, high-temperature tempering vacuum flash vaporizer, low-temperature return water vacuum flash vaporizer, steam jet heat pump nozzle, low-pressure steam receiving chamber,
Mixing chamber, diffusion room, heat exchanger i, heat exchanger ii, secondary network return pipe and low-temperature return water delivery pipe.Described high-temperature tempering vacuum
Flash vessel side connects once net and supplies return pipe, using low vacuum steam flash technology, part high-temperature tempering is become high pressure and steams
Vapour, top connects to steam jet heat pump nozzle, makes the high steam of generation be transported to steam jet heat pump, side connects
To heat exchanger ii；Described low-temperature return water vacuum flash vaporizer side connects low-temperature return water delivery pipe, and part low-temperature return water is become low
Pressure steam, top connects to low-pressure steam receiving chamber, and the low-temperature return water temperature in low-temperature return water delivery pipe reduces further simultaneously；
Described jet type heat pump nozzle is tapered, and one end connects high-temperature tempering vacuum flash vaporizer, one end connection mixing chamber and low-pressure steam
Receiving chamber, high steam passes through to produce high velocity air during jet type heat pump nozzle, produces low-pressure area in nozzle exit, by low pressure
Steam accepts indoor low-pressure steam and sucks mixing interior, and high steam and low-pressure steam carry out good mixing；Described heat exchanger i
Side connects mixed vapour diffusion room end, side connecting secondary net return pipe, and heating backwater flows through heat exchanger i from the bottom up,
Mixed vapour heats backwater, is connected to low-temperature return water delivery pipe under heat exchanger i, hydrophobic is transported to low temperature by what mixed vapour condensed
Backwater delivery pipe；Described heat exchanger ii left upper end connects once net and supplies return pipe, and lower-left end connects low-temperature return water delivery pipe, bottom right
Terminate into secondary network return pipe, make high-temperature tempering and secondary network backwater carry out heat exchange.
Described once net is made up of exotic material for return pipe, and once net supplies backwater to be 90 degrees Celsius；Described secondary network
The interior return water temperature of return pipe (10) is 40 degrees Celsius, and the interior return water temperature of low-temperature return water delivery pipe (11) is 50 degrees Celsius.
Low-pressure steam in described low-pressure steam receiving chamber (5) both can be the exhaust steam diffusing or condensate
The flash steam producing.
The beneficial effects of the utility model are: can obtain the heat in low-temperature return water with very low operating cost, reduce
The return water temperature of net side of plate type heat exchanger in secondary heat exchange station, thus widen the confession once netted rising again difference, increases once net
Recirculated water heat load, improve the transmission ＆ distribution efficiency once netted.
Brief description
Fig. 1 is structural representation of the present utility model.
In figure: 1. once net supplies return pipe, 2. high-temperature tempering vacuum flash vaporizer, 3. low-temperature return water vacuum flash vaporizer, 4. steams
Vapour jet type heat pump nozzle, 5. low-pressure steam receiving chamber, 6. mixing chamber, 7. diffusion room, 8. heat exchanger i, 9. heat exchanger ii, 10 2
Secondary net return pipe, 11. low-temperature return water delivery pipes.
Specific embodiment
In order to be able to be more clearly understood that the technical solution of the utility model, further to the utility model below in conjunction with the accompanying drawings
Explanation.
A kind of distributed great temperature difference heat supply system as depicted, comprising: once net supplies return pipe 1, high-temperature tempering vacuum
Flash vessel 2, low-temperature return water vacuum flash vaporizer 3, steam jet heat pump nozzle 4, low-pressure steam receiving chamber 5, mixing chamber 6, diffusion
Room 7, heat exchanger i8, heat exchanger ii9, secondary network return pipe 10 and low-temperature return water delivery pipe 11.Described high-temperature tempering vacuum flashing
Device 2 side connects once net and supplies return pipe 1, using low vacuum steam flash technology, part high-temperature tempering is become high steam,
Top connects to steam jet heat pump nozzle 4, makes the high steam of generation be transported to steam jet heat pump, side connect to
Heat exchanger ii9.Described low-temperature return water vacuum flash vaporizer 3 side connects low-temperature return water delivery pipe 11, and top connects to low-pressure steam
Receiving chamber 5, part low-temperature return water is become low-pressure steam, and the low-temperature return water temperature in low-temperature return water delivery pipe 11 is further simultaneously
Reducing, thus widen the confession once netted rising again difference, increasing the heat load of the recirculated water once netted, improve the transmission ＆ distribution effect once netted
Rate.Described jet type heat pump nozzle 4 is tapered, and one end connects high-temperature tempering vacuum flash vaporizer 2, one end connection mixing chamber 6 and low
Pressure steam receiving chamber 5, high steam passes through to produce high velocity air during jet type heat pump nozzle 4, produces low pressure in nozzle exit
Area, low-pressure steam in low-pressure steam receiving chamber 5 is sucked in mixing chamber 6, high steam and low-pressure steam carry out good mixing.
Described heat exchanger i8 side connects mixed vapour diffusion room 7 end, side connecting secondary net return pipe 10, and heating backwater is from lower past
On flow through heat exchanger i8, mixed vapour heats backwater, is connected to low-temperature return water delivery pipe 11 under heat exchanger i8, and mixed vapour is cold
Solidifying hydrophobic it is transported to low-temperature return water delivery pipe 11.Described heat exchanger ii9 left upper end connects high-temperature tempering delivery pipe 1, lower-left end
Connect low-temperature return water delivery pipe 11, bottom righthand side accesses secondary network return pipe 10, make high-temperature tempering and secondary network backwater carry out heat friendship
Change.Described once net is made up of exotic material for return pipe 1, and once net supplies backwater to be 90 degrees Celsius.Described secondary network backwater
In pipe 10, return water temperature is 40 degrees Celsius, and in low-temperature return water delivery pipe 11, return water temperature is 50 degrees Celsius.Described low-pressure steam connects
Both can be the flash steam that the exhaust steam diffusing or condensate produce by the low-pressure steam in room 5.
Jet type heat pump operation principle: with the energy difference before and after steam pressure-reducing as power, produce when high steam is by nozzle
Raw high velocity air, produces low-pressure area in nozzle exit, and in this region by low-pressure steam inhalation device, high steam is expanding
While compression and low pressure steam, improve the grade of low-pressure steam with the abundant pressure of high steam, then carried out well by mixing chamber
Mixing, mixed steam passes through the diffusion room recovered part pressure loss again, and after reaching the vapor (steam) temperature of requirement, supply heat supply network makes
With.
Distributed great temperature difference heat supply System Working Principle: the confession backwater of one net is all become using low vacuum steam flash technology
Become steam, due to supply water temperature height so steam pressure is big, recycle jet current principle, by the low-pressure steam Hybrid Heating of backwater side
The backwater that secondary network arm distributes, after low temperature side backwater heat release, temperature reduces, thus reaching secondary station one net great temperature difference heat supply
Effect.
The above is only better embodiment of the present utility model, therefore described in all patent claims according to the utility model
Construction, the equivalence changes done of feature and principle or modification, be all included in the utility model patent claim.
Claims (4)
1. a kind of distributed great temperature difference heat supply system it is characterised in that: include: once net supply return pipe (1), high-temperature tempering vacuum
Flash vessel (2), low-temperature return water vacuum flash vaporizer (3), steam jet heat pump nozzle (4), low-pressure steam receiving chamber (5), mixing
Room (6), diffusion room (7), heat exchanger i(8), heat exchanger ii(9), secondary network return pipe (10) and low-temperature return water delivery pipe (11),
Described high-temperature tempering vacuum flash vaporizer (2) side connects once net and supplies return pipe (1), using low vacuum steam flash technology by portion
High-temperature tempering is divided to become high steam, top connects to steam jet heat pump nozzle (4), so that the high steam of generation is transported to
Steam jet heat pump, side connects to heat exchanger ii(9)；Described low-temperature return water vacuum flash vaporizer (3) side connects low temperature and returns
Water delivery pipe (11), part low-temperature return water is become low-pressure steam, and top connects to low-pressure steam receiving chamber (5), low temperature simultaneously
The inner low-temperature return water temperature of backwater delivery pipe (11) reduces further；Described jet type heat pump nozzle (4) is tapered, and one end connects
High-temperature tempering vacuum flash vaporizer (2), one end connection mixing chamber (6) and low-pressure steam receiving chamber (5), high steam passes through injecting type
Produce high velocity air during heat pump nozzle (4), produce low-pressure area in nozzle exit, interior for low-pressure steam receiving chamber (5) low pressure is steamed
Vapour sucks in mixing chamber (6), and high steam and low-pressure steam carry out good mixing；Described heat exchanger i(8) side connection mixing
Steam diffusion room (7) end, side connecting secondary net return pipe (10), heating backwater flows through heat exchanger i(8 from the bottom up), mix
Close steam heating backwater, heat exchanger i(8) under be connected to low-temperature return water delivery pipe (11), the hydrophobic conveying that mixed vapour is condensed
To low-temperature return water delivery pipe (11)；Described heat exchanger ii(9) once net supplies return pipe (1) for left upper end connection, and lower-left end connects low
Warm backwater delivery pipe (11), bottom righthand side accesses secondary network return pipe (10), makes high-temperature tempering and secondary network backwater carry out heat exchange.
2. a kind of distributed great temperature difference heat supply system according to claim 1 it is characterised in that: described once net supplies backwater
Pipe (1) is made up of exotic material, and once net supplies backwater to be 90 degrees Celsius.
3. a kind of distributed great temperature difference heat supply system according to claim 1 it is characterised in that: described secondary network return pipe
(10) interior return water temperature is 40 degrees Celsius, and the interior return water temperature of low-temperature return water delivery pipe (11) is 50 degrees Celsius.
4. a kind of distributed great temperature difference heat supply system according to claim 1 it is characterised in that: described low-pressure steam accepts
Low-pressure steam in room (5) is the flash steam that the exhaust steam diffusing and condensate produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620637169.2U CN205897300U (en) | 2016-06-25 | 2016-06-25 | Big difference in temperature heating system of distributing type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620637169.2U CN205897300U (en) | 2016-06-25 | 2016-06-25 | Big difference in temperature heating system of distributing type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205897300U true CN205897300U (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620637169.2U Expired - Fee Related CN205897300U (en) | 2016-06-25 | 2016-06-25 | Big difference in temperature heating system of distributing type |
Country Status (1)
| Country | Link |
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| CN (1) | CN205897300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953285A (en) * | 2016-06-25 | 2016-09-21 | 郝炜 | Distributed large-temperature-difference heat supply system |
| CN107702182A (en) * | 2017-09-01 | 2018-02-16 | 中清源环保节能有限公司 | A kind of big temperature difference recovery exhaust steam residual heat system in coal-burning power plant's heat supply initial station |
-
2016
- 2016-06-25 CN CN201620637169.2U patent/CN205897300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953285A (en) * | 2016-06-25 | 2016-09-21 | 郝炜 | Distributed large-temperature-difference heat supply system |
| CN107702182A (en) * | 2017-09-01 | 2018-02-16 | 中清源环保节能有限公司 | A kind of big temperature difference recovery exhaust steam residual heat system in coal-burning power plant's heat supply initial station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191104 Address after: Room 2301, block C, Huayu Baihua Valley, No.132, Xuefu street, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: Chaoteng thermal Group Co., Ltd Address before: 030006 Shanxi province Taiyuan City District Changzhi road A Ruijie Technology Center No. 251 block three layer Patentee before: Hao Wei |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20210625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |