CN104075489A - High-temperature steam heat pump unit - Google Patents
High-temperature steam heat pump unit Download PDFInfo
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- CN104075489A CN104075489A CN201410345064.5A CN201410345064A CN104075489A CN 104075489 A CN104075489 A CN 104075489A CN 201410345064 A CN201410345064 A CN 201410345064A CN 104075489 A CN104075489 A CN 104075489A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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Abstract
The invention provides a high-temperature steam heat pump unit. The invention solves the problems of low heating efficiency and poor heating effect in the conventional high-temperature heat pump units. The high-temperature steam heat pump unit comprises an evaporator, a compressor, a condenser and an electronic expansion valve throttling device, wherein the condenser comprises a condensation cavity and condensed water heat exchange pipes; a first cavity, a second cavity and a second cavity are arranged inside the condensation cavity from the top down; vertical condensed water heat exchange pipes are arranged inside the second cavity; the upper end of each condensed water heat exchange pipe is communicated with the first cavity; the lower end of each condensed water heat exchange pipe is communicated with the third cavity; a refrigerant condensation entrance and a refrigerant condensation exit are positioned on the second cavity; the height of the refrigerant condensation entrance is larger than that of the refrigerant condensation exit; a boiling water/ steam outlet is formed in the first cavity; an inlet of water to be heated is formed in the third cavity. According to the invention, ladder temperature produced during the condensation process is fully utilized, so as to produce a high-temperature effect; before water leaves the boiling water/ steam outlet, the water is subject to high-temperature heating of an overheating refrigerant and can reach the boiling state.
Description
Technical field
The present invention relates to a kind of high-temperature steam source pump, can heat water to boiling, and produce steam.
Background technology
At present, for meeting the needs of energy-saving and emission-reduction, small scall coal-fired boiler is badly in need of environment-friend substitution product-high temperature heat pump unit.The research direction of high temperature heat pump, mainly both ways. the first, researching high-temperature type compressor, such as adopting secondary, three grades of compressions; The second, study novel cold-producing medium; These two kinds of technology, on traditional structure, no matter be condenser or evaporimeter, its cold-producing medium and water-medium lateral flow, from same direction turnover, as Fig. 1, the heating effect of realizing, water temperature can only be less than the saturation temperature that condensing pressure is corresponding, water temperature can only be risen to 85 DEG C up and down, and the efficiency of heating surface is low, heating effect is undesirable.
Summary of the invention
The invention provides artificial heats such as utilizing double stage heat pump or used heat and produce boiling water and the high temperature heat pump unit to steam, solve the technical problem that the existing high temperature heat pump unit efficiency of heating surface is low, heating effect is poor.
The technical solution adopted for the present invention to solve the technical problems is:
High-temperature steam source pump, comprise evaporimeter, compressor, condenser and electronic expansion valve throttling device, the cold-producing medium evaporation outlet of described evaporimeter and the entrance UNICOM of compressor, the condensation of refrigerant entrance UNICOM of the outlet of described compressor and condenser, the condensation of refrigerant outlet of condenser is by the cold-producing medium evaporation entrance UNICOM of electronic expansion valve throttling device and evaporimeter, and its special character is:
Above-mentioned condenser comprises condensation chamber and condensed water heat exchanger tube, in described condensation chamber, be provided with from top to bottom three chambeies, be followed successively by the first chamber, the second chamber, the 3rd chamber, in the second chamber, be placed with vertical condensed water heat exchanger tube, the upper end of condensed water heat exchanger tube and the first chamber UNICOM, the lower end of condensed water heat exchanger tube and the 3rd chamber UNICOM, the condensation of refrigerant entrance of condensation chamber, the condensation of refrigerant outlet of condensation chamber is all positioned on the second chamber, the height of condensation of refrigerant entrance is higher than the height of the condensation of refrigerant outlet of condensation chamber, on the first chamber, be provided with boiling water/steam (vapor) outlet, on the 3rd chamber, be provided with water inlet to be heated.
The high temperature heat pump unit reclaiming for used heat water source, above-mentioned evaporimeter comprises evaporation cavity and evaporation water heat exchanger tube, in described evaporation cavity, be provided with from top to bottom three chambeies, be followed successively by the 4th chamber, the 5th chamber, the 6th chamber, in the 5th chamber, be placed with vertical evaporation water heat exchanger tube, the upper end of evaporation water heat exchanger tube and the 4th chamber UNICOM, the lower end of evaporation water heat exchanger tube and the 6th chamber UNICOM, the cold-producing medium evaporation entrance of evaporation cavity, the cold-producing medium evaporation outlet of evaporation cavity are all positioned on the 5th chamber, and the height of cold-producing medium evaporation entrance is lower than the height of the cold-producing medium evaporation outlet of evaporation cavity; Cold-producing medium in described evaporation cavity is in gas-liquid mixed state; On the 6th chamber, be provided with spent hot water's source inlet, on the 4th chamber, be provided with the outlet of used heat water source.
The high temperature heat pump unit reclaiming for the thermal source such as high-temp waste gas, waste vapour, above-mentioned evaporimeter adopts finned evaporator.
Between above-mentioned condensation of refrigerant outlet and electronic expansion valve throttling device, be also connected with economizer heat exchanger, water enters condensed water heat exchanger tube after economizer heat exchanger is heated.
The evaporating temperature of above-mentioned cold-producing medium is 30-60 degree Celsius, and condensation temperature is higher than 120 degrees Celsius.
Above-mentioned cold-producing medium is selected HFCR245fa.
In above-mentioned evaporation cavity, evaporating pressure is 1-3 atmospheric pressure.
In order to make full use of space, the condensation chamber of above-mentioned condenser and the evaporation cavity of evaporimeter all adopt the structure of longitudinal, i.e. vertical condensation chamber and evaporation cavity.
The invention has the beneficial effects as follows:
The first, condensed water heat exchanger tube has adopted vertical tubular construction, cold-producing medium and water-medium take the contrary flow direction through heat exchanger tube, take full advantage of the step temperature that condensation process produces, allow water-medium be heated gradually, until approach overtemperature, thereby can make the water temperature (or vapor (steam) temperature) of heating higher than saturation temperature corresponding to condensation of refrigerant pressure.This vertical interposed structure, with respect to traditional structure, can reduce condensation temperature, improves unit efficiency.The present invention can produce boiling water and steam more than 1250C.
The second, can make full use of waste heat source, for evaporimeter heat absorption, to improve the operating mode of high temperature unit and to raise the efficiency; Can utilize without used heat, high temperature heat source time, can realize by double stage heat pump.
Three, evaporimeter also adopts vertical interposed structure, and flowing to of water ature of coal and cold-producing medium is identical, with respect to traditional structure, can improve evaporating pressure; Meanwhile, evaporator operation is in full liquid operating mode, and the evaporating state that vapour-liquid is mixed will greatly improve unit efficiency in conjunction with having improved evaporating pressure.
Four, making full use of evaporating temperature is the high temperature condensation feature that 30-60 degree Celsius, condensation temperature are more than or equal to the novel refrigerant of 120 degrees Celsius, can make unit continuous operation at HTHP condensing state.
The cold-producing medium of five, discharging from condenser flow through economizer heat exchanger before leading to electronic expansion valve throttling device, carry out heat exchange with the pure water medium that will enter into pure water medium entrance, in advance water-medium is heated up, realize energy-saving effect, reduce the refrigerant temperature by electronic expansion valve throttling device simultaneously, both extend its service life, improved evaporator operation environment, improved evaporimeter heat absorption efficiency simultaneously.
Brief description of the drawings
Fig. 1 is conventional heat pump working principle of said set figure;
Fig. 2 is unit work schematic diagram of the present invention.
In Fig. 2,1-condensation of refrigerant entrance; 2-condensation chamber; The outlet of 3-condensation of refrigerant; 4-water inlet to be heated; 5-condensed water heat exchanger tube; 6-boiling water/steam (vapor) outlet; 7-electronic expansion valve throttling device; 8-evaporation cavity; 9-evaporation water heat exchanger tube; 10-cold-producing medium evaporation outlet; 11-compressor; 12-economizer heat exchanger; 13-spent hot water source inlet; The outlet of 14-used heat water source; 15-cold-producing medium evaporation entrance.
Detailed description of the invention
Embodiment mono-
The high temperature heat pump unit reclaiming for used heat water source, comprise evaporimeter, compressor 11, condenser and electronic expansion valve throttling device 7, the cold-producing medium evaporation outlet 10 of evaporimeter and the entrance UNICOM of compressor 11, condensation of refrigerant entrance 1 UNICOM of the outlet of compressor 11 and condenser, the condensation of refrigerant outlet 3 of condenser is cold-producing medium evaporation entrance 15 UNICOMs with evaporimeter by electronic expansion valve throttling device 7.
As the right half part in Fig. 2, condenser comprises condensation chamber 2 and condensed water heat exchanger tube 5, in condensation chamber 2, be provided with from top to bottom three chambeies, be followed successively by the first chamber, the second chamber, the 3rd chamber, in the second chamber, be evenly placed with many vertical condensed water heat exchanger tubes 5, condensed water heat exchanger tube 5 is vertical straight tube, the upper end of condensed water heat exchanger tube 5 and the first chamber UNICOM, the lower end of condensed water heat exchanger tube 5 and the 3rd chamber UNICOM, the condensation of refrigerant entrance 1 of condensation chamber 2, the condensation of refrigerant outlet 3 of condensation chamber 2 is all positioned on the second chamber, the height of condensation of refrigerant entrance 1 is higher than the height of the condensation of refrigerant outlet 3 of condensation chamber 2, on the first chamber, be provided with boiling water/steam (vapor) outlet 6, on the 3rd chamber, be provided with water inlet 4 to be heated.
As the left-half of Fig. 2, evaporimeter comprises evaporation cavity 8 and evaporation water heat exchanger tube 9, in evaporation cavity 8, be provided with from top to bottom three chambeies, be followed successively by the 4th chamber, the 5th chamber, the 6th chamber, in the 5th chamber, be evenly placed with many vertical evaporation water heat exchanger tubes 9, evaporation water heat exchanger tube 9 is vertical straight tube, the upper end of evaporation water heat exchanger tube 9 and the 4th chamber UNICOM, the lower end of evaporation water heat exchanger tube 9 and the 6th chamber UNICOM, the cold-producing medium evaporation entrance 15 of evaporation cavity 8, the cold-producing medium evaporation outlet 10 of evaporation cavity 8 is all positioned on the 5th chamber, the height of cold-producing medium evaporation entrance 15 is lower than the height of the cold-producing medium evaporation outlet 10 of evaporation cavity 8, cold-producing medium in described evaporation cavity 8 is in gas-liquid mixed state, on the 6th chamber, be provided with and on spent hot water's source inlet 13, the four chambeies, be provided with used heat water source outlet 14.Cold-producing medium is selected HFCR245fa; In whole refrigeration pipe, configure again the suitable refrigeration oil that can ensure compressor 11 normal work, can make unit continuous operation at HTHP condensing state.
In order to make full use of space, the condensation chamber of condenser and the evaporation cavity of evaporimeter all adopt the structure of longitudinal, i.e. vertical condensation chamber and evaporation cavity.
Compressor 11 can adopt various compressors in prior art, for example compressor of vortex, reciprocating-piston, screw.
Electronic expansion valve throttling device 7 adopts various types of electronic expansion valve throttling devices in prior art.
The course of work of the present invention is: 30 DEG C of-60 DEG C of used heat water sources enter into the 6th chamber of evaporation cavity 8, and then enter into evaporation water heat exchanger tube 9, discharge from the used heat water source outlet 14 of the 4th upper end, chamber of evaporation cavity 8, the cold-producing medium fully and in evaporation cavity 8 carries out heat exchange.Cold-producing medium is under the control of electronic expansion valve throttling device 7, make interior the approaching of evaporation cavity 8 remain full of cold-producing medium, cold-producing medium mixes explosive evaporation state in overall vapour-liquid always, absorb the heat at the used heat water source in evaporation water heat exchanger tube 9, and also unconventional gradual change type evaporation has improved evaporation efficiency; From discharging, cold-producing medium evaporation outlet 10 is passed to the condensation of refrigerant entrance 1 of condensation chamber 2 through compressor 11.Enter condensation chamber 2 from the high-temperature high-pressure refrigerant of compressor 11, from superheat state condensation gradually, formed the step temperature straight line of temperature gradual change from top to bottom, until discharge from condensation of refrigerant outlet 3.And the pure water medium entering from condensed water heat exchanger tube 5 lower ends is subject to step temperature heating to raise gradually from bottom to up, and leaving before boiling water/steam (vapor) outlet 6, be also subject to the high-temperature heating of superheat state cold-producing medium, reached boiling.
The refrigerant temperature of discharging from condenser is still more than 700C, before leading to electronic expansion valve throttling device 7, allow it flow through from economizer heat exchanger 12, carry out heat exchange with the pure water medium that will enter into pure water medium entrance, in advance water-medium is heated up, realize energy-saving effect, reduce by the refrigerant temperature of electronic expansion valve throttling device 7 simultaneously, both extend its service life, also improved evaporator operation environment.
In the present embodiment, as can be utilized without used heat water source time, can after 30-60 degree Celsius, pass into spent hot water's source inlet 13 by double stage heat pump heating water.
Embodiment bis-
The high temperature heat pump unit reclaiming for the thermal source such as high-temp waste gas, waste vapour, adopts finned evaporator on the market, and is sealed and carry out heat exchange; The structure of remainder is with embodiment mono-.
In addition, evaporimeter adopts the structure of existing lateral arrangement, is combined with the condenser in the present embodiment, also can produce waste water and steam, and just evaporation and heat exchanger effectiveness are lower than embodiment mono-.
In embodiment mono-and embodiment bis-, after the boiling water steam producing is utilized, remaining used heat can be used as a part of recycle and reuse of waste heat source, can further raise the efficiency.
Claims (10)
1. high-temperature steam source pump, comprise evaporimeter, compressor, condenser and electronic expansion valve throttling device, the cold-producing medium evaporation outlet of described evaporimeter and the entrance UNICOM of compressor, the condensation of refrigerant entrance UNICOM of the outlet of described compressor and condenser, the condensation of refrigerant outlet of condenser, by the cold-producing medium evaporation entrance UNICOM of electronic expansion valve throttling device and evaporimeter, is characterized in that:
Described condenser comprises condensation chamber and condensed water heat exchanger tube, in described condensation chamber, be provided with from top to bottom three chambeies, be followed successively by the first chamber, the second chamber, the 3rd chamber, in the second chamber, be placed with vertical condensed water heat exchanger tube, the upper end of condensed water heat exchanger tube and the first chamber UNICOM, the lower end of condensed water heat exchanger tube and the 3rd chamber UNICOM, the condensation of refrigerant entrance of condensation chamber, the condensation of refrigerant outlet of condensation chamber is all positioned on the second chamber, the height of condensation of refrigerant entrance is higher than the height of the condensation of refrigerant outlet of condensation chamber, on the first chamber, be provided with boiling water/steam (vapor) outlet, on the 3rd chamber, be provided with water inlet to be heated.
2. high-temperature steam source pump according to claim 1, it is characterized in that: described evaporimeter comprises evaporation cavity and evaporation water heat exchanger tube, in described evaporation cavity, be provided with from top to bottom three chambeies, be followed successively by the 4th chamber, the 5th chamber, the 6th chamber, in the 5th chamber, be placed with vertical evaporation water heat exchanger tube, the upper end of evaporation water heat exchanger tube and the 4th chamber UNICOM, the lower end of evaporation water heat exchanger tube and the 6th chamber UNICOM, the cold-producing medium evaporation entrance of evaporation cavity, the cold-producing medium evaporation outlet of evaporation cavity is all positioned on the 5th chamber, the height of cold-producing medium evaporation entrance is lower than the height of the cold-producing medium evaporation outlet of evaporation cavity, cold-producing medium in described evaporation cavity is in gas-liquid mixed state, on the 6th chamber, be provided with spent hot water's source inlet, on the 4th chamber, be provided with the outlet of used heat water source.
3. high-temperature steam source pump according to claim 1, is characterized in that: described evaporimeter is finned evaporator.
4. according to the high-temperature steam source pump described in claim 1 or 2 or 3, it is characterized in that: between condensation of refrigerant outlet and electronic expansion valve throttling device, be also connected with economizer heat exchanger, water enters condensed water heat exchanger tube after economizer heat exchanger is heated.
5. high-temperature steam source pump according to claim 4, is characterized in that: the evaporating temperature of described cold-producing medium is 30-60 degree Celsius, and condensation temperature is higher than 120 degrees Celsius.
6. high-temperature steam source pump according to claim 5, is characterized in that: described cold-producing medium is selected HFCR245fa.
7. high-temperature steam source pump according to claim 6, is characterized in that: in described evaporation cavity, evaporating pressure is 1-3 atmospheric pressure.
8. according to the high-temperature steam source pump described in claim 1 or 2 or 3, it is characterized in that: the evaporating temperature of described cold-producing medium is 30-60 degree Celsius, and condensation temperature is higher than 120 degrees Celsius.
9. according to the high-temperature steam source pump described in claim 1 or 2 or 3, it is characterized in that: in described evaporation cavity, evaporating pressure is 1-3 atmospheric pressure.
10. according to the high-temperature steam source pump described in claim 1 or 2 or 3, it is characterized in that: all vertical structures of the condensation chamber of described condenser and the evaporation cavity of evaporimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410345064.5A CN104075489B (en) | 2014-07-19 | 2014-07-19 | High-temperature steam source pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410345064.5A CN104075489B (en) | 2014-07-19 | 2014-07-19 | High-temperature steam source pump |
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| CN104075489A true CN104075489A (en) | 2014-10-01 |
| CN104075489B CN104075489B (en) | 2016-07-06 |
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| CN201410345064.5A Active CN104075489B (en) | 2014-07-19 | 2014-07-19 | High-temperature steam source pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105221194A (en) * | 2015-11-05 | 2016-01-06 | 上海领势新能源科技有限公司 | Liquid nitrogen assists waste heat recovery energy-storing and power-generating system |
| CN106225332A (en) * | 2016-08-31 | 2016-12-14 | 天津金轮自行车集团有限公司 | A kind of novel rapid condensation equipment |
| CN108481899A (en) * | 2018-02-12 | 2018-09-04 | 西北大学 | A kind of thermally equilibrated backheating type air, which can be dried, utilizes method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221194A (en) * | 2015-11-05 | 2016-01-06 | 上海领势新能源科技有限公司 | Liquid nitrogen assists waste heat recovery energy-storing and power-generating system |
| CN105221194B (en) * | 2015-11-05 | 2020-09-22 | 上海领势新能源科技有限公司 | Liquid nitrogen auxiliary waste heat recovery energy storage power generation system |
| CN106225332A (en) * | 2016-08-31 | 2016-12-14 | 天津金轮自行车集团有限公司 | A kind of novel rapid condensation equipment |
| CN108481899A (en) * | 2018-02-12 | 2018-09-04 | 西北大学 | A kind of thermally equilibrated backheating type air, which can be dried, utilizes method and system |
| CN108481899B (en) * | 2018-02-12 | 2019-07-09 | 西北大学 | A kind of thermally equilibrated backheating type air, which can be dried, utilizes method and system |
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| CN104075489B (en) | 2016-07-06 |
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