CN202133175U - Lithium bromide absorption heat pump unit with cold water refrigerant supercooling heat exchanger - Google Patents
Lithium bromide absorption heat pump unit with cold water refrigerant supercooling heat exchanger Download PDFInfo
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- CN202133175U CN202133175U CN201120220210U CN201120220210U CN202133175U CN 202133175 U CN202133175 U CN 202133175U CN 201120220210 U CN201120220210 U CN 201120220210U CN 201120220210 U CN201120220210 U CN 201120220210U CN 202133175 U CN202133175 U CN 202133175U
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- heat exchanger
- refrigerant
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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
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
The utility model relates to a lithium bromide absorption heat pump unit with a cold water refrigerant supercooling heat exchanger, which comprises a generator (1), a condenser (2), an absorber (3), an evaporator (4) and a heat exchanger (5), wherein the cold water refrigerant supercooling heat exchanger (8) is additionally arranged on a cold water refrigerant pipeline system between the condenser (2) and the evaporator (4), and the cold water refrigerant passes through the cold water refrigerant supercooling heat exchanger (8) and exchanges heat with other heat exchange fluid passing through the cold water refrigerant supercooling heat exchanger (8), so that the temperature of the cold water refrigerant is lowered. Under the condition that the size of the unit is not changed, the circulation volume of the cold water refrigerant is not changed, the consumed hot source volume of high temperature is not changed, heat quality extracted from the surplus heat source is increased, so as to improve the heat capacity of the unit and improve the COP of the unit, after getting heat quality, the heat exchange fluid flows out of the cold water refrigerant supercooling heat exchanger, and can be applied in proper heat using occasions according to needs.
Description
Technical field
The utility model relates to a kind of first kind lithium bromide absorption type heat pump unit.Belong to air conditioner technical field.
Background technology
First kind lithium bromide absorption type heat pump unit is as shown in Figure 1, is made up of generator 1, condenser 2, absorber 3, evaporimeter 4, heat exchanger 5, solution pump 6, cryogenic fluid pump 7, control system's (not shown) and the pipeline, the valve that connect each parts.The waste heat source and course is through evaporimeter 4, heat medium water flow through absorber 3 and condenser 2.During unit operation, absorbed the waste heat source heat evaporimeter 4 heat-transfer pipes of flowing through by the water as refrigerant of cryogenic fluid pump 7 under spray at evaporimeter 4 tops, the vaporization back gets into absorber 3, and quilt bromize lithium concentrated solution wherein absorbs, and release heat heating heat medium water; Concentration was thinning after bromize lithium concentrated solution absorbed refrigerant vapour in the absorber 3, was extracted out by solution pump 6, sent in the generator 1 through heat exchanger 5 to be concentrated by the high temperature heat source heating, and the concentrated solution after concentrating comes back in the absorber 3 through heat exchanger 5 and absorbs refrigerant vapour; The high temperature refrigerant vapour that concentrating and separating is come out then gets in the condenser 2, condensation behind the release heat heating heat medium water, and get back to once more in the evaporimeter 4.For the source pump of this flow process, because of the pressure and temperature in the condenser 2 is higher than evaporimeter 4, some can flash into refrigerant vapour when water as refrigerant got into evaporimeter 4 from condenser 2, thereby had lost the ability of from the waste heat source, extracting heat.Because the heat that is absorbed during this part water as refrigerant of shwoot vaporization is the heat that discharges when reducing from all the other water as refrigerant temperature; The temperature difference of water as refrigerant is big more in condenser 2 and the evaporimeter 4, and the ratio that the cryogen water yield of shwoot accounts for water as refrigerant global cycle amount is just big more.If there is way to reduce this ratio; Just can let more water as refrigerant remove to extract the heat in waste heat source under the situation of then identical water as refrigerant internal circulating load; Thereby it is constant in the source pump size; And can from the waste heat source, extract more heat under the situation of consumption same high temperature thermal source, improve the COP of source pump; In other words conj.or perhaps, under the situation of extracting identical waste heat source heat, can reduce source pump heat exchange area (cost), reduce the consumption of high temperature heat source.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, provides a kind of band water as refrigerant that can reduce the water as refrigerant temperature that gets into evaporimeter to cross the lithium bromide absorption type heat pump unit of cold heat exchanger.
The purpose of the utility model is achieved in that a kind of lithium bromide absorption type heat pump unit of crossing cold heat exchanger with water as refrigerant; Comprise: generator, condenser, absorber, evaporimeter and heat exchanger; On the condenser of said unit and the water as refrigerant pipe-line system between the evaporimeter, have additional water as refrigerant and cross cold heat exchanger; Water as refrigerant is crossed in the cold heat exchanger from water as refrigerant and is passed through, and other heat exchanging fluid of crossing cold heat exchanger with this water as refrigerant of flowing through carries out heat exchange.
The beneficial effect of the utility model is:
The utility model is crossed cold heat exchanger through on the condenser of unit and the water as refrigerant pipe-line system between the evaporimeter, setting up water as refrigerant; Water as refrigerant is crossed in the cold heat exchanger from this water as refrigerant and is passed through; Other heat exchanging fluid of crossing cold heat exchanger with this water as refrigerant of flowing through carries out heat exchange, and the temperature of water as refrigerant is reduced.Under the situation constant in the unit size, that the water as refrigerant internal circulating load is constant, the high temperature heat source amount of consumption is constant, increase the heat that from the waste heat source, extracts, thereby promote the unit heating capacity, and promote unit COP.Heat exchanging fluid obtains behind the heat to cross in the cold heat exchanger from this water as refrigerant and flows out.This heat exchanging fluid can be applied in the suitable thermal field institute that uses as required.
Description of drawings
Fig. 1 is first kind lithium bromide absorption type heat pump set structure sketch map in the past.
Fig. 2 crosses a kind of application example figure on the single-effect type unit of the lithium bromide absorption type heat pump unit of cold heat exchanger for the related band water as refrigerant of the utility model.
The band water as refrigerant that Fig. 3 relates to for the utility model is crossed a kind of application example figure that cools off water as refrigerant with heat medium water of the lithium bromide absorption type heat pump unit of cold heat exchanger.
The band water as refrigerant that Fig. 4 relates to for the utility model is crossed a kind of application example figure that cools off water as refrigerant with heat medium water of the lithium bromide absorption type heat pump unit of cold heat exchanger.
The band water as refrigerant that Fig. 5 relates to for the utility model is crossed a kind of application example figure that cools off water as refrigerant with solution of the lithium bromide absorption type heat pump unit of cold heat exchanger.
Reference numeral among the figure:
Water as refrigerant is crossed cold heat exchanger 8
Heat medium water advances A1, heat medium water goes out A2;
B1 is advanced in the waste heat source, B2 is advanced in the waste heat source;
High temperature heat source advances C1, high temperature heat source advances C2;
Heat exchanging fluid advances D1, heat exchanging fluid advances D2.
The specific embodiment
Shown in Figure 2 is a kind of application example figure on the single-effect type unit that the related band water as refrigerant of the utility model is crossed the lithium bromide absorption type heat pump unit of cold heat exchanger, and this unit is crossed cold heat exchanger 8, control system's (not shown) by generator 1, condenser 2, absorber 3, evaporimeter 4, heat exchanger 5, solution pump 6, cryogenic fluid pump 7, water as refrigerant and connected the pipeline of each parts, valve etc. and constitutes.The waste heat source and course is through evaporimeter 4, heat medium water series connection flow through absorber 3 and condenser 2.During unit operation, absorbed the waste heat source heat evaporimeter 4 heat-transfer pipes of flowing through by the water as refrigerant of cryogenic fluid pump 7 under spray at evaporimeter 4 tops, the vaporization back gets into absorber 3, and quilt bromize lithium concentrated solution wherein absorbs, release heat heating heat medium water; Concentration was thinning after bromize lithium concentrated solution absorbed refrigerant vapour in the absorber 3, was extracted out by solution pump 6, sent in the generator 1 through heat exchanger 5 to be concentrated by the high temperature heat source heating, and the concentrated solution after concentrating comes back in the absorber 3 through heat exchanger 5 and absorbs refrigerant vapour; The high temperature refrigerant vapour that concentrating and separating is come out then gets in the condenser 2; Heat heat medium water and condensation once more; Condensed water as refrigerant gets into water as refrigerant and crosses in the cold heat exchanger 8, gets back in the evaporimeter 4 after another heat exchanging fluid of being crossed cold heat exchanger 8 by the water as refrigerant of flowing through cools.
The lithium bromide absorption type heat pump unit that band water as refrigerant shown in Figure 2 is crossed cold heat exchanger is a kind of single-effect type unit, and it also can be economic benefits and social benefits or multiple-effect type unit, can be that two-stage absorbs two-stage generation type unit, can also be two sections or multistage type unit.
Band water as refrigerant shown in Figure 2 is crossed the lithium bromide absorption type heat pump unit of cold heat exchanger, and heat medium water is advanced absorber 3, advances condenser 2 again; It also can be the advanced condenser 2 of heat medium water, advances absorber 3 again; Or heat medium water parallel connection flow through absorber 3 and condenser 2.
Band water as refrigerant shown in Figure 2 is crossed the lithium bromide absorption type heat pump unit of cold heat exchanger, and the heat exchanging fluid that the water as refrigerant of flowing through is crossed cold heat exchanger can be the outside fluid of unit, also can be heat medium water, or the lower bromize lithium dilute solution of temperature in the unit.
The band water as refrigerant that relates to for the utility model shown in Figure 3 is crossed a kind of application example figure that cools off water as refrigerant with heat medium water of the lithium bromide absorption type heat pump unit of cold heat exchanger.This unit is crossed cold heat exchanger 8, control system's (not shown) by generator 1, condenser 2, absorber 3, evaporimeter 4, heat exchanger 5, solution pump 6, cryogenic fluid pump 7, water as refrigerant and is connected the pipeline of each parts, valve etc. and constitutes.The waste heat source and course is through evaporimeter 4, and one road heat medium water water as refrigerant of flowing through is crossed cold heat exchanger 8, with another road heat medium water parallel connection of absorber 3 and condenser 2 of flowing through of connecting.During unit operation, absorbed the waste heat source heat evaporimeter 4 heat-transfer pipes of flowing through by the water as refrigerant of cryogenic fluid pump 7 under spray at evaporimeter 4 tops, the vaporization back gets into absorber 3, and quilt bromize lithium concentrated solution wherein absorbs, and release heat heating heat medium water; Concentration was thinning after bromize lithium concentrated solution absorbed refrigerant vapour in the absorber 3, was extracted out by solution pump 6, sent in the generator 1 through heat exchanger 5 to be concentrated by the high temperature heat source heating, and the concentrated solution after concentrating comes back in the absorber 3 through heat exchanger 5 and absorbs refrigerant vapour; The high temperature refrigerant vapour that concentrating and separating is come out then gets in the condenser 2, condensation behind the release heat heating heat medium water, and condensed water as refrigerant is crossed cold heat exchanger 8 through water as refrigerant and is got back in the evaporimeter 4, and the heat medium water of being crossed cold heat exchanger 8 by the water as refrigerant of flowing through cools.
The band water as refrigerant that relates to for the utility model shown in Figure 4 is crossed a kind of application example figure that cools off water as refrigerant with heat medium water of the lithium bromide absorption type heat pump unit of cold heat exchanger.This unit is crossed cold heat exchanger 8, control system's (not shown) by generator 1, condenser 2, absorber 3, evaporimeter 4, heat exchanger 5, solution pump 6, cryogenic fluid pump 7, water as refrigerant and is connected the pipeline of each parts, valve etc. and constitutes.The waste heat source and course is through evaporimeter 4, and the heating agent moisture two-way parallel connection water as refrigerant of flowing through is crossed cold heat exchanger 8 and absorber 3, the series connection condenser 2 of flowing through again after gathering.During unit operation, absorbed the waste heat source heat evaporimeter 4 heat-transfer pipes of flowing through by the water as refrigerant of cryogenic fluid pump 7 under spray at evaporimeter 4 tops, the vaporization back gets into absorber 3, and quilt bromize lithium concentrated solution wherein absorbs, and release heat heating heat medium water; Concentration was thinning after bromize lithium concentrated solution absorbed refrigerant vapour in the absorber 3, was extracted out by solution pump 6, sent in the generator 1 through heat exchanger 5 to be concentrated by the high temperature heat source heating, and the concentrated solution after concentrating comes back in the absorber 3 through heat exchanger 5 and absorbs refrigerant vapour; The high temperature refrigerant vapour that concentrating and separating is come out then gets in the condenser 2, condensation behind the release heat heating heat medium water, and condensed water as refrigerant is crossed cold heat exchanger 8 through water as refrigerant and is got back in the evaporimeter 4, and the heat medium water of being crossed cold heat exchanger 8 by the water as refrigerant of flowing through cools.
Fig. 3 and the lithium bromide absorption type heat pump unit that cools off water as refrigerant with heat medium water shown in Figure 4; Heat medium water can be that the Fen Yilu water as refrigerant of flowing through is crossed cold heat exchanger 8; All the other parallel connections or absorber 3, the condenser 2 of flowing through of connecting; And the road heat medium water that the water as refrigerant of flowing through is crossed cold heat exchanger 8 can directly flow out unit (as shown in Figure 3), also can get into absorber 3 or condenser 2 (as shown in Figure 4) again; Heat medium water also can be that the water as refrigerant of flowing through is earlier crossed any in cold heat exchanger 8, absorber 3 and the condenser 2, and parallel connection or series connection are flowed through two other again.
The beneficial effect that uses external fluid or heat medium water to cool off the utility model of water as refrigerant is:
The water as refrigerant that increases is crossed cold heat exchanger and has been reduced the water as refrigerant temperature that gets into evaporimeter, from the waste heat source, extracts the ability of heat thereby under the situation of identical water as refrigerant internal circulating load, increased it.Water as refrigerant is crossed the heat that changes away in the cold heat exchanger what is, how many its heats that from the waste heat source, can extract are exactly more under the situation of identical water as refrigerant internal circulating load.And because under the situation of identical water as refrigerant internal circulating load; The state of each parts does not have to change (evaporimeter increases heat transfer area in the ratios of extracting waste heat source heat more, and it is constant to keep heat transfer temperature difference) in the unit, thereby the high temperature heat source that consumes is constant; The heating load of unit increases, and COP rises.
The band water as refrigerant that relates to for the utility model shown in Figure 5 is crossed a kind of application example figure that cools off water as refrigerant with solution of the lithium bromide absorption type heat pump unit of cold heat exchanger.This unit is crossed cold heat exchanger 8, control system's (not shown) by generator 1, condenser 2, absorber 3, evaporimeter 4, heat exchanger 5, solution pump 6, cryogenic fluid pump 7, water as refrigerant and is connected the pipeline of each parts, valve etc. and constitutes.The waste heat source and course is through evaporimeter 4, heat medium water series connection flow through absorber 3 and condenser 2.During unit operation, absorbed the waste heat source heat evaporimeter 4 heat-transfer pipes of flowing through by the water as refrigerant of cryogenic fluid pump 7 under spray at evaporimeter 4 tops, the vaporization back gets into absorber 3, and quilt bromize lithium concentrated solution wherein absorbs, and release heat heating heat medium water; Concentration was thinning after bromize lithium concentrated solution absorbed refrigerant vapour in the absorber 3; Extracted out by solution pump 6; Flow through heat exchanger 5 and water as refrigerant of bromize lithium dilute solution parallel connection crossed cold heat exchanger 8 backs and got in the generators 1 and concentrated by the high temperature heat source heating, and the concentrated solution after concentrating comes back in the absorber 3 through heat exchanger 5 and absorbs refrigerant vapour; The high temperature refrigerant vapour that concentrating and separating is come out then gets in the condenser 2; Condensation behind the release heat heating heat medium water; Condensed water as refrigerant is crossed cold heat exchanger 8 through water as refrigerant and is got back in the evaporimeter 4, and the bromize lithium dilute solution of being crossed cold heat exchanger 8 by the water as refrigerant of flowing through cools.
Band water as refrigerant shown in Figure 5 is crossed the lithium bromide absorption type heat pump unit of cold heat exchanger, and heat medium water is advanced absorber 3, advances condenser 2 again; It also can be the advanced condenser 2 of heat medium water, advances absorber 3 again; Or heat medium water parallel connection flow through absorber 3 and condenser 2.
Band water as refrigerant shown in Figure 5 is crossed the lithium bromide absorption type heat pump unit of cold heat exchanger, and bromize lithium dilute solution is that parallel connection gets into heat exchanger 5 and crosses cold heat exchanger 8 with water as refrigerant, and the water as refrigerant of also can the bromize lithium dilute solution series connection flowing through is crossed cold heat exchanger 8 and heat exchanger 5.
The beneficial effect that uses solution to cool off the utility model of water as refrigerant is:
The water as refrigerant that increases is crossed cold heat exchanger and has been reduced the water as refrigerant temperature that gets into evaporimeter, from the waste heat source, extracts the ability of heat thereby under the situation of identical water as refrigerant internal circulating load, increased it.Water as refrigerant is crossed the heat that changes away in the cold heat exchanger what is, how many its heats that from the waste heat source, can extract are exactly more under the situation of identical water as refrigerant internal circulating load.And, can reduce the heat that needs in the generator from high temperature heat source because bromize lithium dilute solution has obtained heat from water as refrigerant.Under the situation of identical water as refrigerant internal circulating load, can increase the heat that from low-temperature heat source, extracts, reduce the consumption of high temperature heat source heat simultaneously, the COP of unit rises.
Claims (6)
1. lithium bromide absorption type heat pump unit of crossing cold heat exchanger with water as refrigerant; Comprise: generator (1), condenser (2), absorber (3), evaporimeter (4) and heat exchanger (5); It is characterized in that: on the condenser (2) of said unit and the water as refrigerant pipe-line system between the evaporimeter (4), have additional water as refrigerant and cross cold heat exchanger (8); Water as refrigerant is crossed in the cold heat exchanger (8) from water as refrigerant and is passed through, and other heat exchanging fluid of crossing cold heat exchanger (8) with this water as refrigerant of flowing through carries out heat exchange.
2. a kind of lithium bromide absorption type heat pump unit of crossing cold heat exchanger with water as refrigerant according to claim 1; It is characterized in that: other heat exchanging fluid that the water as refrigerant of flowing through is crossed cold heat exchanger (8) is the outside fluid of unit; Or heat medium water, or bromize lithium dilute solution.
3. a kind of lithium bromide absorption type heat pump unit of crossing cold heat exchanger with water as refrigerant according to claim 2; It is characterized in that: when said other heat exchanging fluid is heat medium water; Heat medium water is that the Fen Yilu water as refrigerant of flowing through is crossed cold heat exchanger (8); All the other parallel connections or series connection flow through absorber (3), condensers (2), and the water as refrigerant of flowing through crosses one road heat medium water of cold heat exchanger (8) or directly flows out unit, or get into absorber (3) or condenser (2) again.
4. a kind of lithium bromide absorption type heat pump unit of crossing cold heat exchanger with water as refrigerant according to claim 2; It is characterized in that: when said other heat exchanging fluid is heat medium water; Heat medium water is that the water as refrigerant of flowing through is earlier crossed any in cold heat exchanger (8), absorber (3) and the condenser (2), and parallel connection or series connection are flowed through two other again.
5. a kind of lithium bromide absorption type heat pump unit of crossing cold heat exchanger with water as refrigerant according to claim 2; It is characterized in that: when said other heat exchanging fluid was bromize lithium dilute solution, bromize lithium dilute solution was that parallel connection entering water as refrigerant is crossed cold heat exchanger (8) and heat exchanger (5); Or the series connection water as refrigerant of flowing through is crossed cold heat exchanger (8) and heat exchanger (5).
6. according to one of them described a kind of lithium bromide absorption type heat pump unit of crossing cold heat exchanger with water as refrigerant of claim 1 ~ 5; It is characterized in that: said unit is the single-effect type unit; Or economic benefits and social benefits or multiple-effect type unit, or two-stage generation two-stage absorption-type unit, or two sections or multistage type unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120220210U CN202133175U (en) | 2011-06-27 | 2011-06-27 | Lithium bromide absorption heat pump unit with cold water refrigerant supercooling heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120220210U CN202133175U (en) | 2011-06-27 | 2011-06-27 | Lithium bromide absorption heat pump unit with cold water refrigerant supercooling heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202133175U true CN202133175U (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120220210U Expired - Lifetime CN202133175U (en) | 2011-06-27 | 2011-06-27 | Lithium bromide absorption heat pump unit with cold water refrigerant supercooling heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202133175U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287959A (en) * | 2011-06-27 | 2011-12-21 | 双良节能系统股份有限公司 | Lithium bromide absorption heat pump set with refrigerant water supercooling heat exchanger |
| CN103256750A (en) * | 2013-05-28 | 2013-08-21 | 烟台荏原空调设备有限公司 | Absorption heat pump unit |
-
2011
- 2011-06-27 CN CN201120220210U patent/CN202133175U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287959A (en) * | 2011-06-27 | 2011-12-21 | 双良节能系统股份有限公司 | Lithium bromide absorption heat pump set with refrigerant water supercooling heat exchanger |
| CN103256750A (en) * | 2013-05-28 | 2013-08-21 | 烟台荏原空调设备有限公司 | Absorption heat pump unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120201 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |