CN203907580U - Condensate water recovery system based on condensation water returning heat exchanger - Google Patents
Condensate water recovery system based on condensation water returning heat exchanger Download PDFInfo
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- CN203907580U CN203907580U CN201420323561.0U CN201420323561U CN203907580U CN 203907580 U CN203907580 U CN 203907580U CN 201420323561 U CN201420323561 U CN 201420323561U CN 203907580 U CN203907580 U CN 203907580U
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- heat exchanger
- condensate water
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- coagulation hydroenergy
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Abstract
The utility model provides a condensate water recovery system based on a condensation water returning heat exchanger. The condensate water recovery system comprises a steam condenser, a condensate water pump, a heat exchanging device, a water returning pump and a condensate water returning heat exchanger. The water returning pump and the condensate water returning heat exchanger are connected in sequence. An inlet end of the water returning pump is connected with an outlet end of the heat exchanger. An outlet end of the condensate water returning heat exchanger is connected with a hot well on the steam condenser. The recovery system comprises two working modes of a pure condensing working condition and a heat supply working condition. In the heat supply working condition, condensate water flow output by the heat exchanging device is cooled through the condensate water returning heat exchanger, then the condensate water flow enters the hot well, condensate water collected by the hot well flows through the condensate water returning heat exchanger and is then heated, and finally the condensate water enters a boiler. According to the condensate water recovery system, relative stability of inlet flow of the condensate water pump can still be kept after frequency setting of the condensate water pump is removed, initial investment is reduced, the working stability of the condensate water pump is improved, the service life of the condensate water pump is prolonged, meanwhile, energy consumption is lowered, energy conservation and emission reduction are well achieved, and environment can be well protected.
Description
Technical field
The utility model relates to distributed energy engineering and heat supply machine technical group field, especially relates to a kind of condensation water recovery system based on coagulation hydroenergy backwater heat exchanger.
Background technology
For existing distributed energy engineering and heat supply unit, no matter be pure condensate operating mode or confession thermal condition, steam-condensation is all main condensed water recovering means.Under pure condensate operating mode, enter in hot well through the condensed condensed water of condenser, after being boosted by condensate pump, finally enter boiler.
But, under thermal condition, no matter draw gas to steam bromine cooling machine refrigeration or draw gas to user's heat exchanger condensation heat supply, all must carry out working medium recovery to the condensed water of heating steam.And the recovery of the current condensate return for this part extraction for heat supply steam, or be directly recovered to boiler by condensate return pipe road, or be directly wasted, and the temperature of condensate return is relatively high, therefore larger to the rate of water make-up of boiler, thereby the huge waste that causes the energy and water resource, is unfavorable for energy-saving and emission-reduction; Meanwhile, also cause reality very low via the flow of condensate pump, therefore need to arrange frequency converter on condensate pump, this has increased investment undoubtedly.For distributed energy engineering, heat supply machine pool-size is less conventionally, and heat supply large percentage is taken out solidifying unit for this type of engineering, and often the amount of drawing gas is greater than the condensation number of condenser, and changes frequent.So just make condensate pump in pure condensate operating mode and excessive for the flow difference under thermal condition, and Four seasons change is frequent round the clock, cause condensate pump under unstable, severe operating mode, to move always, cause lower the service life of condensate pump, and accident probability improves.
Utility model content
The technical problems to be solved in the utility model is: the problem existing for prior art, a kind of condensation water recovery system based on coagulation hydroenergy backwater heat exchanger is provided, and in reducing investment, energy-saving and emission-reduction, improve the job stability of condensate pump.
The technical problems to be solved in the utility model realizes by the following technical solutions: a kind of condensation water recovery system based on coagulation hydroenergy backwater heat exchanger, comprise back water pump and the coagulation hydroenergy backwater heat exchanger of condenser, condensate pump, heat-exchanger rig, connection successively, described back water pump entrance point is connected with the heat-exchanger rig port of export, described coagulation hydroenergy backwater heat exchanger exit end is connected with the hot well on condenser, and the condensate water in described hot well is flowed through after coagulation hydroenergy backwater heat exchanger and entered boiler.
Preferably, described heat-exchanger rig is steam bromine cooling machine or user's heat exchanger.
Preferably, described condensation water recovery system also comprises storage tank, and described storage tank is connected on the pipeline between described heat-exchanger rig and back water pump.
Preferably, described back water pump is hot water booster.
Preferably, described storage tank is coagulation hydroenergy backwater case with cavitation cancellation element or the condensate collection tank of normal pressure heat-insulating.
Preferably, described condensation water recovery system also comprises pressure regulator valve, and described pressure regulator valve is connected on the pipeline between the hot well on coagulation hydroenergy backwater heat exchanger and condenser.
Preferably, described coagulation hydroenergy backwater heat exchanger is shell-and-tube water water-to-water heat exchanger.
Preferably, described condensate pump is provided with two, and for being connected in parallel.
Compared with prior art, the beneficial effects of the utility model are: by shared coagulation hydroenergy backwater heat exchanger is set on heating steam water return pipeline and main condensate pipeline, both the coagulation hydroenergy backwater waste heat in recyclable heating steam water return pipeline, to meet the return water temperature requirement that enters condenser, make condensed water directly return to the hot well of condenser; Can utilize again coagulation hydroenergy backwater waste heat to carry out preheating to the feedwater that is delivered to boiler from condenser hotwell, to improve the feed temperature of boiler simultaneously.Therefore, utilize the utility model under the condition of frequency conversion setting of cancelling condensate pump, still to keep the relatively stable of condensate pump inlet flow rate, thereby reduced initial cost, also improved job stability and the service life of condensate pump; Meanwhile, the recycling of coagulation hydroenergy backwater waste heat is also conducive to save the energy resource consumption of boiler, thereby reaches the object of energy-saving and emission-reduction, protection of the environment.Condensation water recovery system of the present utility model has been realized the omnidistance closed cycle of system, and the working medium rate of recovery is high, and system water supplement amount is extremely low.
Brief description of the drawings
Fig. 1 is the structural map of a kind of condensation water recovery system based on coagulation hydroenergy backwater heat exchanger of the utility model.
Mark in figure: 1-steam turbine, 2-generator, 3-condenser, 4-hot well, 5-condensate pump, 6-coagulation hydroenergy backwater heat exchanger, 7-back water pump, 8-storage tank, 9-heat-exchanger rig, 10-boiler, 11-pressure regulator valve.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the drawings and specific embodiments, the utility model is elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
For distributed energy engineering or heat supply unit, if adopt condensing turbine, the steam being produced by boiler is through Steam Turbine Driven generator acting generating or after extraction for heat supply, all need to reclaim condensate water working medium.A kind of condensation water recovery system based on coagulation hydroenergy backwater heat exchanger as shown in Figure 1, mainly comprise condenser 3, condensate pump 5, coagulation hydroenergy backwater heat exchanger 6 and back water pump 7 and heat-exchanger rig 9, the entrance point of described condenser 3, heat-exchanger rig 9 is all connected and communicates with steam turbine 1, and hot well 4, condensate pump 5, coagulation hydroenergy backwater heat exchanger 6 and boiler 10 on described condenser 3 connect to form condensate water major loop successively.Hot well 4 on the port of export of described heat-exchanger rig 9 and storage tank 8, back water pump 7, coagulation hydroenergy backwater heat exchanger 6 and pressure regulator valve 11 and condenser 3 connects to form heat supplying loop successively.In order to improve the functional reliability of this condensation water recovery system, described condensate pump 5 is provided with two, and for being connected in parallel, one conventional, and one for subsequent use.
In above-mentioned condensation water recovery system, heat-exchanger rig 9 wherein can adopt steam bromine cooling machine, also can be user's heat exchanger, can freeze by steam bromine cooling machine, can be user's heat supply by user's heat exchanger, thereby make full use of drawing gas to the steam of heat-exchanger rig 9, be conducive to energy-saving and emission-reduction.Storage tank 8 is wherein connected on the pipeline between heat-exchanger rig 9 and back water pump 7, for reclaiming, collect condensate water or the secondary vapour of discharging from heat-exchanger rig 9, ensures the output flow of back water pump 7; Described heat-exchanger rig 9 is connected and communicates with storage tank 8 top inlet ends, and back water pump 7 is connected and communicates with storage tank 8 outlet at bottom ends, is conducive to like this from heat-exchanger rig 9 condensed water in high temperature out or the cooling of secondary vapour, improves the rate of recovery of condensate water.Coagulation hydroenergy backwater pump 7 has wherein adopted hot water booster, after the condensate water of storage tank 8 is boosted, is pumped to coagulation hydroenergy backwater heat exchanger 6, and finally enters condenser 3.Because the condensing water temperature in storage tank 8 is relatively high, adopt hot water booster to be conducive to allow, under operating mode, to avoid back water pump 7 that cavitation occurs as far as possible, thereby ensure the job stability of this condensation water recovery system, and extend the service life of back water pump 7 in design.
If heat-exchanger rig 9 adopts steam bromine cooling machine, because steam bromine cooling machine is arranged in distributed energy station conventionally, close together, and also steam is after steam bromine cooling machine acting condensation, and temperature is also higher, and likely produces secondary vapour.In order to reduce loss of steam and water, improve condensate recovery percentage, storage tank 8 does not adopt air suspended type return water tank substantially, and selects the coagulation hydroenergy backwater case with cavitation cancellation element, to eliminate the adverse effect of cavitation to equipment such as storage tank 8 and back water pumps 7.But, if heat-exchanger rig 9 is to adopt common user's heat exchanger, conventionally because user uses a little far away, heat utilization efficiency is high, therefore the coagulation hydroenergy backwater of user's heat exchanger output is not generally containing secondary vapour, temperature is also on the low side, therefore, storage tank 8 is selected the condensate collection tank of normal pressure heat-insulating, without particular/special requirement.Can make like this condensate water and secondary vapour that heat-exchanger rig 9 is discharged be recycled fully; can reduce loss of steam and water approximately 20%～25%; also can alleviate thermal pollution and the noise pollution that whole condensation water recovery system causes, be conducive to energy-saving and emission-reduction and environmental protection simultaneously.
The method of work of the above-mentioned condensation water recovery system based on coagulation hydroenergy backwater heat exchanger is as follows: be mainly divided into pure condensate operating mode and supply two kinds of mode of operations of thermal condition, under pure condensate operating mode, the steam being produced by boiler 10 drives generator 2 to do work after generating through steam turbine 1, be condensed into condensate water and entered in hot well 4 by condenser 3, the condensate water in hot well 4 is boosted, is returned to boiler 10 after 6 heat exchange of coagulation hydroenergy backwater heat exchanger via condensate pump 5 again.Supplying under thermal condition, the steam being produced by boiler 10 is drawn gas out from steam turbine 1 body, after heat-exchanger rig 9 heat exchange, be condensed into condensate water, be recycled to again unified storage tank 8, finally necessarily boost by back water pump 7, be back to coagulation hydroenergy backwater heat exchanger 6, in coagulation hydroenergy backwater heat exchanger 6, carry out heat exchange from the main condensate in coagulation hydroenergy backwater and the condensate water major loop of back water pump 7, coagulation hydroenergy backwater after the 6 heat exchange coolings of coagulation hydroenergy backwater heat exchanger is by after pressure regulator valve 11 Decompression Controllings, finally enter in the hot well 4 on condenser 3, the condensate water that hot well 4 is collected is boosted via condensate pump 5 again, after heating up, 6 heat exchange of coagulation hydroenergy backwater heat exchanger return to boiler 10.Pressure regulator valve 11 is wherein connected on the pipeline between coagulation hydroenergy backwater heat exchanger 6 and hot well 4, is mainly used in decompression and controls the coagulation hydroenergy backwater flow that enters condenser 3.
For fear of the vacuum of destroying condenser 3, make can successfully enter in condenser 3 from the heat supply backwater of coagulation hydroenergy backwater heat exchanger 6, the heat supply backwater that can export coagulation hydroenergy backwater heat exchanger 6 by pressure regulator valve 11 reduces pressure, and preferably makes the coagulation hydroenergy backwater pressure of exporting and enter hot well 4 from coagulation hydroenergy backwater heat exchanger 6 be decompressed between 0.05Mpa-0.15Mpa.In addition, described coagulation hydroenergy backwater heat exchanger 6 is the nucleus equipments in this condensation water recovery system, and in order to reclaim to greatest extent the heat of the condensate water that heat-exchanger rig 9 discharges, coagulation hydroenergy backwater heat exchanger 6 preferably adopts shell-and-tube water water-to-water heat exchanger.It needs to be noted, the condensate return temperature that the heat exchange area of coagulation hydroenergy backwater heat exchanger 6 should meet its port of export output is less than 60 DEG C, to meet condenser 3 to entering coagulation hydroenergy backwater temperature requirement wherein, in order to avoid destroy the vacuum in condenser 3, ensure that the coagulation hydroenergy backwater after heat supply successfully enters condenser 3.
The utility model by arranging shared coagulation hydroenergy backwater heat exchanger 6 on heating steam water return pipeline and main condensate pipeline, not only can farthest reclaim coagulation hydroenergy backwater waste heat and the condensate return in heating steam water return pipeline, preheating is carried out in the feedwater that can utilize again coagulation hydroenergy backwater waste heat to be delivered to boiler 10 to the hot well 4 from condenser 3, thereby meet the temperature requirement of the coagulation hydroenergy backwater that enters condenser 3, improve again the feed temperature of boiler 10 simultaneously, be conducive to reduce hear rate and the power supply gas consumption of heat supply unit, realize energy-saving and emission-reduction.In addition, no matter the utility model is pure condensate operating mode if also making, or for thermal condition, keeps relative stability via the flow of condensate pump 5, therefore, can cancel the converter plant on traditional condensate pump 5 completely, and its design discharge is considered according to pure condensate operating mode.So just can reduce the initial cost of whole system.In the time that the heat supply of distributed energy engineering and pure condensate operating mode are frequently switched, even if the amount of drawing gas of heat supply unit is frequently adjusted, because the flow through condensate pump 5 remains unchanged substantially, can reduce like this wearing and tearing of condensate pump 5, improve job stability and the service life of condensate pump 5.Condensation water recovery system of the present utility model is omnidistance closed cycle, and the working medium rate of recovery is high.Through measuring and calculating, supplying under thermal condition, according to the tightness of the distance of user and refrigeration plant and heating system entirety, a complete set of system only needs to consider 2%～5% system water supplement amount.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any amendments of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. the condensation water recovery system based on coagulation hydroenergy backwater heat exchanger, comprise condenser (3), condensate pump (5) and heat-exchanger rig (9), it is characterized in that: also comprise the back water pump (7) and the coagulation hydroenergy backwater heat exchanger (6) that connect successively, described back water pump (7) entrance point is connected with heat-exchanger rig (9) port of export, described coagulation hydroenergy backwater heat exchanger (6) port of export is connected with the hot well (4) on condenser (3), condensate water in described hot well (4) is flowed through after coagulation hydroenergy backwater heat exchanger (6) and is entered boiler (10).
2. the condensation water recovery system based on coagulation hydroenergy backwater heat exchanger according to claim 1, is characterized in that: described heat-exchanger rig (9) is steam bromine cooling machine or user's heat exchanger.
3. according to the condensation water recovery system based on coagulation hydroenergy backwater heat exchanger described in claim 1 or 2, it is characterized in that: also comprise storage tank (8), described storage tank (8) is connected on the pipeline between described heat-exchanger rig (9) and back water pump (7).
4. the condensation water recovery system based on coagulation hydroenergy backwater heat exchanger according to claim 3, is characterized in that: described back water pump (7) is hot water booster.
5. the condensation water recovery system based on coagulation hydroenergy backwater heat exchanger according to claim 3, is characterized in that: described storage tank (8) is coagulation hydroenergy backwater case with cavitation cancellation element or the condensate collection tank of normal pressure heat-insulating.
6. according to the condensation water recovery system based on coagulation hydroenergy backwater heat exchanger described in claim 1 or 2, it is characterized in that: also comprise pressure regulator valve (11), described pressure regulator valve (11) is connected on the pipeline between the hot well (4) on coagulation hydroenergy backwater heat exchanger (6) and condenser (3).
7. the condensation water recovery system based on coagulation hydroenergy backwater heat exchanger according to claim 6, is characterized in that: described coagulation hydroenergy backwater heat exchanger (6) is shell-and-tube water water-to-water heat exchanger.
8. according to the condensation water recovery system based on coagulation hydroenergy backwater heat exchanger described in claim 1 or 2, it is characterized in that: described condensate pump (5) is provided with two, and for being connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323561.0U CN203907580U (en) | 2014-06-17 | 2014-06-17 | Condensate water recovery system based on condensation water returning heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420323561.0U CN203907580U (en) | 2014-06-17 | 2014-06-17 | Condensate water recovery system based on condensation water returning heat exchanger |
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| CN203907580U true CN203907580U (en) | 2014-10-29 |
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| CN201420323561.0U Expired - Fee Related CN203907580U (en) | 2014-06-17 | 2014-06-17 | Condensate water recovery system based on condensation water returning heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006374A (en) * | 2014-06-17 | 2014-08-27 | 中国电力工程顾问集团西南电力设计院 | Condensate water recovery system based on returned condensate water heat exchanger and working method |
| CN109139556A (en) * | 2017-06-16 | 2019-01-04 | 扬中市宏彬冷暖设备有限公司 | A kind of hot and cold water pump of the energy conservation with water recovery apparatus |
-
2014
- 2014-06-17 CN CN201420323561.0U patent/CN203907580U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006374A (en) * | 2014-06-17 | 2014-08-27 | 中国电力工程顾问集团西南电力设计院 | Condensate water recovery system based on returned condensate water heat exchanger and working method |
| CN104006374B (en) * | 2014-06-17 | 2015-12-30 | 中国电力工程顾问集团西南电力设计院有限公司 | Based on condensation water recovery system and the method for work of coagulation hydroenergy backwater heat exchanger |
| CN109139556A (en) * | 2017-06-16 | 2019-01-04 | 扬中市宏彬冷暖设备有限公司 | A kind of hot and cold water pump of the energy conservation with water recovery apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Address before: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20180617 |