CN208222910U - The big temperature difference heat-exchange unit of first kind absorption-compression type - Google Patents
The big temperature difference heat-exchange unit of first kind absorption-compression type Download PDFInfo
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- CN208222910U CN208222910U CN201820321928.3U CN201820321928U CN208222910U CN 208222910 U CN208222910 U CN 208222910U CN 201820321928 U CN201820321928 U CN 201820321928U CN 208222910 U CN208222910 U CN 208222910U
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- evaporator
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- heat exchanger
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Abstract
The big temperature difference heat-exchange unit of first kind absorption-compression type provided by the utility model belongs to large temperature difference technology field.First condenser has cryogen liquid pipeline to be connected to by first throttle valve with the first evaporator, first evaporator has refrigerant steam channel to be connected to absorber, absorber has weak solution pipeline to be connected to through the first solution heat exchanger with the first generator, first generator has concentrated solution pipeline to be connected to through the first solution heat exchanger with absorber, and the first generator has refrigerant steam channel to be connected to the first condenser.High temperature heat source successively passes through the first generator, heat exchanger cooling, heats up using the second condenser, finally cools down by the first evaporator and the second evaporator.Absorber and the first condenser have heated medium pipeline to be connected to outside respectively, a part of heated medium successively passes through absorber and the heating of the first condenser, another part heated medium carries out heat exchange heating by heat exchanger and high temperature heat source, forms the big temperature difference heat-exchange unit of first kind absorption-compression type.
Description
Technical field:
The utility model belongs to large temperature difference technology field.
Background technique:
Northern China urban and rural buildings are warmed oneself about 20,000,000,000 square metres of the gross area, and it is left that coal heating area accounts for total heating area 80%
The right side, wherein central heating area accounts for about the one third of coal heating area.With the scale enlargement in city, heat source insufficiency becomes
The energy bottleneck of limitation urban development.Existing central heating technology, primary net supply and return water temperature design parameter are 130 DEG C/70
DEG C, the primary net supply and return water temperature of actual conditions is generally 110 DEG C/60 DEG C, by Tsinghua University's building energy conservation center research and development based on
The big temperature difference technology of absorption heating, by the way that in secondary station application absorption type heat pump assembly, level-one net return water temperature is reduced to 30
DEG C or less.
In northern " coal changes electricity " process, air source heat pump consumes a small amount of electric energy from the lower air of temperature by compressor
More heat is obtained, realizes resident's winter heating.Compression type heat pump assembly has in terms of using the lower residual heat resources of temperature
There is very big advantage, efficiency is higher, clean and environmental protection.
Utility model content:
The main purpose of the utility model is to provide the big temperature difference heat-exchange unit of first kind absorption-compression type, particular content
Subitem is described below:
1. the big temperature difference heat-exchange unit of first kind absorption-compression type, mainly by the first generator, the first solution heat exchange
Device, absorber, solution pump, the first condenser, first throttle valve, the first evaporator, heat exchanger, second throttle, the second evaporation
Device, compressor and the second condenser and various connecting lines and attachment composition；First condenser has cryogen liquid pipeline by the
One throttle valve is connected to the first evaporator, and the first evaporator has refrigerant steam channel to be connected to absorber, and absorber has weak solution
Pipeline is connected to through the first solution heat exchanger with the first generator, and the first generator has concentrated solution pipeline through the first solution heat exchange
Device is connected to absorber, and the first generator has refrigerant steam channel to be connected to the first condenser, and the second condenser has cryogen liquid pipe
Road is connected to through second throttle with the second evaporator, and the second evaporator has refrigerant steam channel to be communicated with compressor, and compressor has
Refrigerant steam channel is connected to the second condenser.First generator, the second condenser, the first evaporator, the second evaporator difference
There is high temperature heat source pipeline to be connected to outside, high temperature heat source successively passes through the first generator and heat exchanger cooling, cold using second
Condenser heating, finally cools down by the first evaporator and the second evaporator.Absorber and the first condenser are heated Jie respectively
Matter pipeline is connected to outside, and a part of heated medium successively passes through absorber and the heating of the first condenser, and another part is added
Thermal medium carries out heat exchange heating by heat exchanger and high temperature heat source, forms the big temperature difference heat exchanger of first kind absorption-compression type
Group.
2. the big temperature difference heat-exchange unit of first kind absorption-compression type, mainly by the first generator, the first solution heat exchange
Device, absorber, solution pump, the first condenser, first throttle valve, the first evaporator, heat exchanger, second throttle, the second evaporation
Device, compressor, the second condenser, the second generator, the second solution heat exchanger and third throttle valve and various connecting lines
It is formed with attachment；First condenser has cryogen liquid pipeline to be connected to through first throttle valve with the first evaporator, and the first evaporator has cold
Agent steam channel is connected to absorber, and absorber has weak solution pipeline to be connected to through the first solution heat exchanger with the first generator,
First generator has concentrated solution pipeline successively to connect through the first solution heat exchanger and the second solution heat exchanger and the second generator
Logical, the first generator has refrigerant steam channel to be connected to the second generator, and the second generator has refrigerant steam channel cold with first
Condenser connection, the second generator have cryogen liquid channel to be connected to through third throttle valve with the first condenser, and the second condenser has cryogen
Liquid pipeline is connected to through second throttle with the second evaporator, and the second evaporator has refrigerant steam channel to be communicated with compressor, compression
Machine has refrigerant steam channel to be connected to the second condenser.First generator, the second condenser, the first evaporator, the second evaporator
There is high temperature heat source pipeline be connected to outside respectively, high temperature heat source successively passes through the first generator and heat exchanger and cools down, using the
The heating of two condensers, finally cools down by the first evaporator and the second evaporator.Absorber and the first condenser have respectively to be added
Heat medium pipeline is connected to outside, and a part of heated medium successively passes through absorber and the heating of the first condenser, another part
Heated medium carries out heat exchange heating by heat exchanger and high temperature heat source, forms the big temperature difference heat exchange of first kind absorption-compression type
Unit.
It is further illustrated for the big temperature difference heat-exchange unit of first kind absorption-compression type shown in Fig. 1 below practical
It is novel:
In Fig. 1, after high temperature heat source cools down in the first generator and heat exchanger, into the second condenser in heat up, first
The heat source temperature of evaporator increases, and high temperature heat source, which enters the second evaporator after cooling down in the first evaporator, to be continued to cool down, this is just
Bring following effect:
(1) the first evaporator generates the refrigerant vapour of higher temperature, and lithium-bromide solution concentration can be lower in absorber, from
And lower generation concentration corresponds to lower generation temperature in the first generator under identical condensing pressure, high temperature heat source is first
Bigger temperature drop may be implemented in generator.
(2) the utilization final temperature of high temperature heat source reduces again in the second evaporator, widened high temperature heat source outlet temperature and
The temperature difference between heated medium inlet temperature.
Detailed description of the invention:
Fig. 1 is flowed according to 1st kind of the big temperature difference heat-exchange unit of first kind absorption-compression type provided by the utility model
Journey schematic diagram.
Fig. 2 is flowed according to 2nd kind of the big temperature difference heat-exchange unit of first kind absorption-compression type provided by the utility model
Journey schematic diagram.
Fig. 3 is flowed according to 1st kind of the big temperature difference heat-exchange unit of first kind absorption-compression type provided by the utility model
Journey implements example.
In figure, the 1-the first generator, the 2-the first solution heat exchanger, 3-absorbers, 4-solution pumps, 5-the first is cold
Condenser, 6-first throttle valves, the 7-the first evaporator, 8-heat exchangers, 9-second throttle, the 10-the second evaporator,
11-compressors, the 12-the second condenser, the second solution heat exchanger of H-, T-third throttle valve, the second generator of G-.
Specific embodiment:
First it is noted that in the statement of structure and process, do not repeat in inessential situation；To apparent
Process do not state.The utility model is described in detail with example with reference to the accompanying drawing.
The big temperature difference heat-exchange unit of first kind absorption-compression type shown in FIG. 1 is achieved in that
The big temperature difference heat-exchange unit of the first kind absorption-compression type on the basis of single-action first-class absorption type heat pump and is pressed
Contracting formula heat pump carries out function combination, and high temperature heat source pipeline successively passes through the first generator 1, heat exchanger 8, the second condenser 12, the
One evaporator 7, the second evaporator 10.High temperature heat source cools down by the first generator 1 and heat exchanger 8, by the second condenser 12
Heating cools down by the first evaporator 7 and the second evaporator 10.Heated medium pipeline a part successively passes through 3 He of absorber
First condenser 5, another part exchange heat by heat exchanger 8 and high temperature heat source, form the first kind and absorb the compound big temperature of compression
Poor heat-exchange unit.
The big temperature difference heat-exchange unit of first kind absorption-compression type shown in Fig. 2 is achieved in that
The big temperature difference heat-exchange unit of the first kind absorption-compression type on the basis of economic benefits and social benefits first-class absorption type heat pump and is pressed
Contracting formula heat pump carries out function combination, and high temperature heat source pipeline successively passes through the first generator 1, heat exchanger 8, the second condenser 12, the
One evaporator 7, the second evaporator 10.High temperature heat source cools down by the first generator 1 and heat exchanger 8, by the second condenser 12
Heating cools down by the first evaporator 7 and the second evaporator 10.Heated medium pipeline a part successively passes through 3 He of absorber
First condenser 5, another part exchange heat by heat exchanger 8 and high temperature heat source, form the first kind and absorb the compound big temperature of compression
Poor heat-exchange unit.
Fig. 3 show the big temperature difference heat-exchange unit of first kind absorption-compression type applied to central heating system, reduces back
The application example of coolant-temperature gage.
Embodiment 1: as shown in figure 3, the unit is exchanged heat by single-action first-class absorption type heat pump, compression heat pump and water-water
Device and connecting line attachment composition, water system are divided into primary net system and secondary network system two parts.In unit operation, temperature
Spend higher 100 DEG C of primary net water and enter the first generator 1, temperature is reduced to 60 DEG C, subsequently into water-water heat exchanger 8 with
Secondary network water exchanges heat, and temperature becomes 40 DEG C after heat exchange, then enters back into the second condenser 12, and temperature is increased to 65 DEG C, then
30 DEG C are cooled into the first evaporator 7, finally enters the second evaporator 10, temperature is reduced to 12 DEG C；37 DEG C of secondary network of time
Water initially enters absorber 3 and is warming up to 40 DEG C, enters back into the first condenser 5 and is warming up to 42 DEG C.Thereby realize level-one net water
12 DEG C are reduced to from 100 DEG C, has widened the temperature difference of primary net return water and secondary network return water, enhances the energy of pipe network conveying heat
Power, the unit are typically mounted at the heat exchange station of central heating system.
The first kind absorption-compression type that the effect that the utility model may be implemented --- the utility model is proposed is big
Temperature difference heat-exchange unit has the effect of following and advantage:
(1) high temperature heat source is after absorption heat pump generator and heat exchanger cooling, using the condenser liter of compression heat pump
Temperature can be improved the evaporating temperature of absorption heat pump evaporator, and then reduce the concentration of absorption installation lithium-bromide solution, finally
The generation temperature of absorption heat pump generator is reduced, realizes that high temperature heat source has bigger temperature drop in generator.
(2) the high temperature heat source come out from the first evaporator of absorption heat pump, it is further into the second evaporator of compression heat pump
Cooling plays the low advantage of compression heat pump evaporating temperature, utmostly reduces the utilization final temperature of high temperature heat source.
(3) the big temperature difference heat-exchange unit of first kind absorption-compression type proposed, makes full use of absorption heat pump and compression
The technical advantage of formula heat pump itself extends the application range of absorption heat pump and compression heat pump.
Claims (2)
1. the big temperature difference heat-exchange unit of first kind absorption-compression type, mainly by the first generator, the first solution heat exchanger, suction
Receive device, solution pump, the first condenser, first throttle valve, the first evaporator, heat exchanger, second throttle, the second evaporator, pressure
Contracting machine and the second condenser and connecting line and attachment composition；First condenser (5) has cryogen liquid pipeline to pass through first throttle
Valve (6) is connected to the first evaporator (7), and the first evaporator (7) has refrigerant steam channel to be connected to absorber (3), absorber (3)
There is weak solution pipeline to be connected to through the first solution heat exchanger (2) with the first generator (1), the first generator (1) has concentrated solution pipe
The first solution heat exchanger of road (2) is connected to absorber (3), and the first generator (1) has refrigerant steam channel and the first condensation
Device (5) connection, the second condenser (12) have cryogen liquid pipeline to be connected to through second throttle (9) with the second evaporator (10), and second
Evaporator (10) has refrigerant steam channel to be connected to compressor (11), and compressor (11) has refrigerant steam channel and the second condenser
(12) it is connected to；First generator (1), the second condenser (12), the first evaporator (7), the second evaporator (10) have high temperature respectively
Heat source pipeline is connected to outside, and high temperature heat source successively passes through the first generator (1) and heat exchanger (8) cooling, cold using second
Condenser (12) heating, finally cools down by the first evaporator (7) and the second evaporator (10)；Absorber (3) and the first condenser
(5) heated medium pipeline is connected to outside respectively, a part of heated medium successively passes through absorber (3) and the first condensation
Device (5) heating, another part heated medium carry out heat exchange heating by heat exchanger (8) and high temperature heat source, form the first kind and inhale
Receive the big temperature difference heat-exchange unit of compression combined type.
2. the big temperature difference heat-exchange unit of first kind absorption-compression type, mainly by the first generator, the first solution heat exchanger, suction
Receive device, solution pump, the first condenser, first throttle valve, the first evaporator, heat exchanger, second throttle, the second evaporator, pressure
Contracting machine, the second condenser, the second generator, the second solution heat exchanger and third throttle valve and connecting line and attachment group
At；First condenser (5) has cryogen liquid pipeline to be connected to through first throttle valve (6) with the first evaporator (7), the first evaporator (7)
There is refrigerant steam channel to be connected to absorber (3), absorber (3) has weak solution pipeline through the first solution heat exchanger (2) and the
One generator (1) connection, the first generator (1) have concentrated solution pipeline successively through the first solution heat exchanger (2) and the second solution
Heat exchanger (H) is connected to the second generator (G), and the first generator (1) has refrigerant steam channel and the second generator (G) even
Logical, the second generator (G) has refrigerant steam channel to be connected to the first condenser (5), and the second generator (G) has cryogen liquid channel warp
Third throttle valve (T) is connected to the first condenser (5), the second condenser (12) have cryogen liquid pipeline through second throttle (9) with
Second evaporator (10) connection, the second evaporator (10) have refrigerant steam channel to be connected to compressor (11), and compressor (11) has
Refrigerant steam channel is connected to the second condenser (12)；First generator (1), the second condenser (12), the first evaporator (7),
Second evaporator (10) has high temperature heat source pipeline to be connected to outside respectively, and high temperature heat source successively passes through the first generator (1) and changes
Hot device (8) cooling, heats up using the second condenser (12), finally drops by the first evaporator (7) and the second evaporator (10)
Temperature；Absorber (3) and the first condenser (5) have respectively heated medium pipeline with outside be connected to, a part of heated medium according to
Secondary to heat up by absorber (3) and the first condenser (5), another part heated medium passes through heat exchanger (8) and high temperature heat source
Heat exchange heating is carried out, the big temperature difference heat-exchange unit of first kind absorption-compression type is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820321928.3U CN208222910U (en) | 2018-03-09 | 2018-03-09 | The big temperature difference heat-exchange unit of first kind absorption-compression type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820321928.3U CN208222910U (en) | 2018-03-09 | 2018-03-09 | The big temperature difference heat-exchange unit of first kind absorption-compression type |
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| Publication Number | Publication Date |
|---|---|
| CN208222910U true CN208222910U (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820321928.3U Expired - Fee Related CN208222910U (en) | 2018-03-09 | 2018-03-09 | The big temperature difference heat-exchange unit of first kind absorption-compression type |
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| CN (1) | CN208222910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912138A (en) * | 2020-07-21 | 2020-11-10 | 同方节能工程技术有限公司 | Big difference in temperature heat exchanger group of type of rising temperature absorption |
-
2018
- 2018-03-09 CN CN201820321928.3U patent/CN208222910U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912138A (en) * | 2020-07-21 | 2020-11-10 | 同方节能工程技术有限公司 | Big difference in temperature heat exchanger group of type of rising temperature absorption |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20200309 |
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| CF01 | Termination of patent right due to non-payment of annual fee |