CN204006779U - A kind of efficient HGAX absorption type refrigerating unit - Google Patents
A kind of efficient HGAX absorption type refrigerating unit Download PDFInfo
- Publication number
- CN204006779U CN204006779U CN201420424202.4U CN201420424202U CN204006779U CN 204006779 U CN204006779 U CN 204006779U CN 201420424202 U CN201420424202 U CN 201420424202U CN 204006779 U CN204006779 U CN 204006779U
- Authority
- CN
- China
- Prior art keywords
- solution
- cooling
- absorber
- generator
- hgax
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
一种高效HGAX吸收式制冷装置，蒸发器的出口分为两路气相支路，一路气相支路通过蒸汽增压部件分别连通着高压冷却介质冷却吸收器以及溶液冷却吸收器的气相进口，另外一路气相支路连通着低压冷却介质冷却吸收器的气相进口；低压冷却介质冷却吸收器的液相出口通过低压溶液泵连通着高压冷却介质冷却吸收器液相入口；高压冷却介质冷却吸收器液相出口通过高压溶液泵连通着溶液冷却吸收器浓制冷剂溶液入口；相比传统HGAX吸收式制冷装置，由于本实用新型装置在制取相同制冷量的时候只有一部分制冷剂蒸气需要被压缩到中间压力，因而需要消耗的机械功更少并具有更高的效率。
A high-efficiency HGAX absorption refrigeration device, the outlet of the evaporator is divided into two gas phase branches, one gas phase branch is respectively connected to the gas phase inlet of the high-pressure cooling medium cooling absorber and the solution cooling absorber through the steam booster component, and the other is The gas phase branch is connected to the gas phase inlet of the low-pressure cooling medium cooling absorber; the liquid phase outlet of the low-pressure cooling medium cooling absorber is connected to the liquid phase inlet of the high-pressure cooling medium cooling absorber through a low-pressure solution pump; the liquid phase outlet of the high-pressure cooling medium cooling absorber The high-pressure solution pump is connected to the concentrated refrigerant solution inlet of the solution cooling absorber; compared with the traditional HGAX absorption refrigeration device, only a part of the refrigerant vapor needs to be compressed to the intermediate pressure when the device of the utility model obtains the same cooling capacity, As a result, less mechanical work needs to be consumed and higher efficiency is achieved.
Description
Technical field
The utility model belongs to refrigeration technology field, refers more particularly to a kind of efficient HGAX absorption type refrigerating unit.
Background technology
Sorption type refrigerating technology is a kind of Refrigeration Technique of heat-driven, and comparing its major advantage with compression-type refrigeration technology is only need to consume little mechanical energy, can directly utilize heat energy as drive energy.In order to ensure that absorption type refrigerating unit works preferably, need to select suitable working medium pair.Conventional working medium is to having water-lithium bromide and ammonia-water.Adopt ammonia-water to be mainly used in producing 0 DEG C of following cold as the right absorption type refrigerating unit of working medium.The general efficiency that adopts GAX absorption type refrigerating unit to improve aqua-ammonia absorption-type refrigerating machine device.But the temperature of the thermal source that traditional GAX absorption type refrigerating unit needs is higher, and this has limited the scope of its application.Document Performance analysis of advanced hybrid GAX cycles(International Journal of Refrigeration. 2004; 27:442 – 448) announce the absorption compression coupling absorption type refrigerating unit of a kind of HGAX of name.This device improves the performance of standard GAX absorption type refrigerating unit by increasing a compressor between the absorber at standard GAX absorption type refrigerating unit and evaporimeter or between condenser and generator.Because this device can be worked comparing under generation pressure that standard GAX absorption type refrigerating unit is lower or higher absorption pressure, therefore the temperature overlapping interval of generator and absorber increases greatly, be that the heat that more absorber discharges can be used to drive generator instead of be discharged in environment go, therefore the performance of HGAX absorption type refrigerating unit is far superior to the performance of standard GAX absorption type refrigerating unit.But the major defect of traditional HGAX absorption type refrigerating unit is it need to consume more mechanical power, and this has not only limited its application scenario, has also affected indirectly its performance.
Utility model content
The utility model, for the deficiency of existing HGAX absorption type refrigerating unit, proposes a kind of HGAX absorption type refrigerating unit efficiently.By reducing unnecessary mechanical power consumption, further improve the performance of HGAX absorption type refrigerating unit.
A kind of efficient HGAX absorption type refrigerating unit comprises generator 1, heat exchanger-generator 2, rectifier 3, condenser 4, first throttle element 5, evaporimeter 6, steam boosting parts 7, low pressure cooling medium cooling absorber 8, hypotonic solution pump 9, high pressure cooling medium cooling absorber 10, high-pressure solution pump 11 and second section fluid element 12 occurs to absorb.There is to absorb heat exchanger-absorber 13, solution cooling absorption device 14, the 3rd restricting element 15, generator 1, generation absorb the gas phase liquid phase connection successively of heat exchanger-generator 2, rectifier 3 and condenser 4, between described condenser 4 and evaporimeter 6, are communicated with by first throttle element 5 liquid phases; The outlet of evaporimeter 6 is divided into two-way gas phase branch road, one tunnel gas phase branch road is being communicated with the gas phase import of solution cooling absorption device 14 and high pressure cooling medium cooling absorber 10 by steam boosting parts 7, an other road gas phase branch road is being communicated with the gas phase import of low pressure cooling medium cooling absorber 8; The liquid-phase outlet of generator 1 is being communicated with the liquid phase import that heat exchanger-absorber 13 occurs to absorb by second section fluid element 12; Described generation absorbs the liquid phase connection successively of heat exchanger-absorber 13, solution cooling absorption device 14 and low pressure cooling medium cooling absorber 8; Gas phase liquid phase between heat exchanger-absorber 13 and solution cooling absorption device 14 occurs to absorb to be communicated with; Liquid pipe between solution cooling absorption device 14 and low pressure cooling medium cooling absorber 8 is provided with the 3rd restricting element 15; The liquid-phase outlet of low pressure cooling medium cooling absorber 8 is being communicated with high pressure cooling medium cooling absorber 10 liquid phase entrances by hypotonic solution pump 9; High pressure cooling medium cooling absorber 10 liquid-phase outlets are being communicated with the dense refrigerant solution entrance of solution cooling absorption device 14 by high-pressure solution pump 11; The liquid phase entrance that the dense refrigerant solution outlet of solution cooling absorption device 14 and generation absorb heat exchanger-generator 2 is connected.
Preferred as one, occur to be provided with solution mixer between absorption heat exchanger-generator and rectifier; The taphole of rectifier is connected with solution mixer; High-pressure solution pump, solution cooling absorption device are connected successively with solution mixer; Solution mixer outlet absorbs heat exchanger-generator with generation and is connected.
As one most preferably, generator and generation absorb between heat exchanger-generator and are provided with solution heating generator; Generator taphole, solution heating generator are connected successively with second section fluid element; Generator gaseous phase outlet, solution heating generator and generation absorb heat exchanger-generator and are connected.
Being used for the cooling medium of cooler condenser and absorber, can be cooling water, can be also air; Restricting element can be the resistance element that choke valve, capillary and throttle orifice etc. have throttling action; Steam boosting parts can be that compressor, compressor etc. can be by the equipment of steam boosting.
Useful technique effect of the present utility model is embodied in: compare with traditional HGAX absorption type refrigerating unit, the utility model device is many as lower component: low pressure cooling medium cooling absorber, hypotonic solution pump and the 3rd restricting element.And in flow process, do corresponding improvement, the refrigerant vapour of evaporator outlet has been divided into two parts, the same operating pressure that is compressed to high pressure cooling medium cooling absorber by steam boosting parts of a part of and traditional HGAX absorption type refrigerating unit, a part does not need supercharging to flow directly to low pressure cooling medium cooling absorber in addition, and traditional HGAX absorption type refrigerating unit needs the refrigerant vapor compression of all evaporator outlets to higher pressure.The a large amount of mechanical power of process need consumption of being compressed by steam boosting parts due to refrigerant vapour, therefore in producing identical refrigerating capacity, the utility model mechanical power that device consumes can be little more than traditional HGAX absorption type refrigerating unit, and therefore the coefficient of performance of the utility model device can be more much higher than traditional HGAX absorption type refrigerating unit.(concrete comparative result embodiment in the back).
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is a kind of preferred system flow chart of the utility model.
Fig. 3 is a kind of most preferred system flow chart of the utility model.
Wherein, comprise that generator 1, generation absorb heat exchanger-generator 2, rectifier 3, condenser 4, first throttle element 5, evaporimeter 6, steam boosting parts 7, low pressure cooling medium cooling absorber 8, hypotonic solution pump 9, high pressure cooling medium cooling absorber 10, high-pressure solution pump 11, second section fluid element 12, heat exchanger-absorber 13, solution cooling absorption device 14, the 3rd restricting element 15, solution mixer 16, solution heating generator 17 occur to absorb.
In addition, in figure, solid line represents liquid phase or gas-liquid two-phase fluid, and dotted line represents gaseous fluid.
Detailed description of the invention
As shown in Figure 1, a kind of efficient HGAX absorption type refrigerating unit, generator 1 gaseous phase outlet, generation absorption heat exchanger-generator 2, rectifier 3, condenser 4, first throttle element 5, evaporimeter 6 connect successively; Evaporimeter 6 outlets are divided into two-way, and a road absorbs heat exchanger-absorber 12 with steam boosting parts 7, solution cooling absorption device 14, generation and is connected; An other road is connected with low pressure cooling medium cooling absorber 8; Generator 1 taphole, second section fluid element 12, generation absorption heat exchanger-absorber 13, solution cooling absorption device 14, the 3rd restricting element 15, low pressure cooling medium cooling absorber 8, hypotonic solution pump 9, solution cooling absorption device 14, generation absorb heat exchanger-generator 2, generator 1 solution entrance connects successively; The liquid-phase outlet of rectifier 3 absorbs heat exchanger-generator 2 with generation and is connected.Wherein first throttle element 5, second section fluid element 12 and the 3rd restricting element 15 are choke valve; Steam boosting parts 7 are compressor.
As shown in Figure 2, a kind of preferred efficient HGAX absorption type refrigerating unit, on the basis shown in Fig. 1, occurs to be provided with solution mixer 16 between absorption heat exchanger-generator 2 and rectifier 3; The taphole of rectifier 3 is connected with solution mixer 16; Hypotonic solution pump 9, solution cooling absorption device 14 are connected successively with solution mixer 16; Solution mixer 16 exports and absorbs heat exchanger-generator 2 and be connected.
As shown in Figure 3, a kind of efficient HGAX absorption type refrigerating unit of optimum, on the basis shown in Fig. 2, generator 1 and generation absorb between heat exchanger-generator 2 and are provided with solution heating generator 17; Generator 1 taphole, solution heating generator 17 are connected successively with second section fluid element 12; Generator 1 gaseous phase outlet, solution heating generator 17 and generation absorb heat exchanger-generator 2 and are connected.
embodiment:using ammonia-water as working medium pair, the performance of the utility model Fig. 3 shown device, standard GAX absorption type refrigerating unit, traditional HGAX absorption type refrigerating unit is carried out to analog computation.The assumed condition of calculating is as follows: (1) system is in steady-working state; (2) ignore pressure-drop in pipeline and leak heat; (3) generator import solution, generator exports solution, cooling medium cooling absorber outlet solution, rectifier outlet solution, generation absorption heat exchanger-generator exports solution, generation absorb heat exchanger-absorber outlet solution, the 3rd restricting element import solution is all saturated solution; (4) heat exchanger-generator occurring to absorb is 0 DEG C with occurring to absorb heat exchanger-absorber cold junction heat transfer temperature difference; (5) solution cooling absorption device hot junction heat transfer temperature difference is 5 DEG C, and solution heating generator cold junction heat transfer temperature difference is 5 DEG C; (6) condensator outlet liquid is saturated liquid, and evaporator outlet is saturated vapor; (7) condensation temperature is 40 DEG C, and cooling medium cooling absorber outlet solution is 40 DEG C, and rectifier outlet steam temperature is 40 DEG C; (8) adiabatic efficiency of solution pump and steam boosting parts is 0.75.
The coefficient of performance under the different evaporating temperatures of table one the utility model device, standard GAX absorption type refrigerating unit and traditional HGAX absorption type refrigerating unit
| Operating mode | T e（℃） | COP SGAX | COP HGAX | COP PHGAX | η（%） |
| Operating mode 1 | -15 | 0.643981 | 0.90685 | 0.93269 | 2.85 |
| Operating mode 2 | -12.5 | 0.670932 | 0.92277 | 0.96679 | 4.77 |
| Operating mode 3 | -10 | 0.698659 | 0.94162 | 1.00257 | 6.47 |
| Operating mode 4 | -7.5 | 0.728074 | 0.96377 | 1.04019 | 7.93 |
| Operating mode 5 | -5 | 0.788379 | 0.98968 | 1.07986 | 9.11 |
| Operating mode 6 | -2.5 | 0.853714 | 1.01990 | 1.12178 | 9.99 |
| Operating mode 7 | 0 | 0.924143 | 1.05516 | 1.16623 | 10.53 |
| Operating mode 8 | 2.5 | 0.999652 | 1.09636 | 1.21350 | 10.68 |
| Operating mode 9 | 5 | 1.080172 | 1.14470 | 1.26393 | 10.42 |
| Operating mode 10 | 7.5 | 1.165543 | 1.20172 | 1.31792 | 9.67 |
| Operating mode 11 | 10 | 1.255478 | 1.26950 | 1.37589 | 8.38 |
Table one is the contrast of the utility model device, standard GAX absorption type refrigerating unit and the coefficient of performance of traditional HGAX absorption type refrigerating unit under different evaporating temperatures in the time that occurrence temperature is 163.3 DEG C, T in table
erefer to evaporating temperature, COP
sGAXrefer to the coefficient of performance of standard GAX absorption type refrigerating unit, COP
hGAXrefer to the coefficient of performance of HGAX absorption type refrigerating unit, COP
pHGAXrefer to the coefficient of performance of the utility model device.The electric work that need to consume due to the utility model device is as can be seen from Table I significantly less than the electric work that traditional HGAX absorption type refrigerating unit need to consume, and therefore the utility model device will have than the higher efficiency of traditional HGAX absorption type refrigerating unit.When evaporating temperature is higher than-5 DEG C time, the coefficient of performance of the more traditional HGAX absorption type refrigerating unit of the coefficient of performance of the utility model device is high more than 9%, consider that traditional HGAX absorption type refrigerating unit has had higher efficiency, therefore this increase rate is very large.
The coefficient of performance under the different occurrence temperatures of table two the utility model device, standard GAX absorption type refrigerating unit and traditional HGAX absorption type refrigerating unit
| Operating mode | T g（℃） | COP SGAX | COP HGAX | COP PHGAX | η（%） |
| Operating mode 1 | 123.3 | 0.809216 | 0.950636 | 1.066144 | 12.15 |
| Operating mode 2 | 125.8 | 0.817734 | 0.965778 | 1.082472 | 12.08 |
| Operating mode 3 | 128.3 | 0.841386 | 0.980469 | 1.098129 | 12.00 |
| Operating mode 4 | 130.8 | 0.863899 | 0.994705 | 1.113162 | 11.91 |
| Operating mode 5 | 133.3 | 0.885352 | 1.008514 | 1.127595 | 11.81 |
| Operating mode 6 | 135.8 | 0.905813 | 1.021889 | 1.141476 | 11.7 |
| Operating mode 7 | 138.3 | 0.925345 | 1.03487 | 1.154822 | 11.59 |
| Operating mode 8 | 140.8 | 0.944009 | 1.047448 | 1.167661 | 11.48 |
| Operating mode 9 | 143.3 | 0.961853 | 1.059648 | 1.180014 | 11.36 |
| Operating mode 10 | 145.8 | 0.978926 | 1.07147 | 1.191911 | 11.24 |
| Operating mode 11 | 148.3 | 0.995272 | 1.082926 | 1.203367 | 11.12 |
| Operating mode 12 | 150.8 | 1.010931 | 1.094041 | 1.214402 | 11.00 |
| Operating mode 13 | 153.3 | 1.025941 | 1.104808 | 1.225034 | 10.88 |
| Operating mode 14 | 155.8 | 1.040337 | 1.115244 | 1.235294 | 10.76 |
| Operating mode 15 | 158.3 | 1.054153 | 1.125372 | 1.245177 | 10.65 |
| Operating mode 16 | 160.8 | 1.067423 | 1.135181 | 1.254723 | 10.53 |
| Operating mode 17 | 163.3 | 1.080172 | 1.144698 | 1.263931 | 10.42 |
| Operating mode 18 | 165.8 | 1.092435 | 1.15394 | 1.272821 | 10.30 |
| Operating mode 19 | 168.3 | 1.104238 | 1.162892 | 1.28142 | 10.19 |
Table two is contrasts of the utility model device, standard GAX absorption type refrigerating unit and the coefficient of performance of traditional HGAX absorption type refrigerating unit under different evaporating temperatures in the time that evaporating temperature is 5 DEG C.T in table
grefer to occurrence temperature, the meaning of other symbols is identical with the meaning of each symbol in table one.As can be seen from Table II under all simulated conditions, the utility model device and traditional HGAX absorption type refrigerating unit all want high compared with the coefficient of performance of standard GAX absorption type refrigerating unit to the utilization ratio of thermal source, and the coefficient of performance of the more traditional HGAX absorption type refrigerating unit of the coefficient of performance of the utility model device is high more than 10%, thereby can further improve the utilization ratio to thermal source.The high reason of the coefficient of performance of the more traditional HGAX absorption type refrigerating unit of the coefficient of performance of the utility model device is that the utility model device can reduce unnecessary mechanical power consumption.
Claims (6)
1. an efficient HGAX absorption type refrigerating unit, comprise generator (1), there is to absorb heat exchanger-generator (2), rectifier (3), condenser (4), first throttle element (5), evaporimeter (6), steam boosting parts (7), low pressure cooling medium cooling absorber (8), hypotonic solution pump (9), high pressure cooling medium cooling absorber (10), high-pressure solution pump (11), second section fluid element (12), there is to absorb heat exchanger-absorber (13), solution cooling absorption device (14), the 3rd restricting element (15), it is characterized in that: generator (1), there is to absorb heat exchanger-generator (2), rectifier (3) and condenser (4) successively gas phase liquid phase are communicated with, between described condenser (4) and evaporimeter (6), be communicated with by first throttle element (5) liquid phase, the outlet of evaporimeter (6) is divided into two-way gas phase branch road, one tunnel gas phase branch road is being communicated with the gas phase import of solution cooling absorption device (14) and high pressure cooling medium cooling absorber (10) by steam boosting parts (7), an other road gas phase branch road is being communicated with the gas phase import of low pressure cooling medium cooling absorber (8), the liquid-phase outlet of generator (1) is being communicated with the liquid phase import that heat exchanger-absorber (13) occurs to absorb by second section fluid element (12), described generation absorbs the liquid phase connection successively of heat exchanger-absorber (13), solution cooling absorption device (14) and low pressure cooling medium cooling absorber (8), gas phase liquid phase between heat exchanger-absorber (13) and solution cooling absorption device (14) occurs to absorb to be communicated with, liquid pipe between solution cooling absorption device (14) and low pressure cooling medium cooling absorber (8) is provided with the 3rd restricting element (15), the liquid-phase outlet of low pressure cooling medium cooling absorber (8) is being communicated with high pressure cooling medium cooling absorber (10) liquid phase entrance by hypotonic solution pump (9), high pressure cooling medium cooling absorber (10) liquid-phase outlet is being communicated with the dense refrigerant solution entrance of solution cooling absorption device (14) by high-pressure solution pump (11), the liquid phase entrance that the dense refrigerant solution outlet of solution cooling absorption device (14) and generation absorb heat exchanger-generator (2) is connected.
2. the efficient HGAX absorption type refrigerating unit of one as claimed in claim 1, is characterized in that: the liquid-phase outlet of described rectifier (3) is being communicated with solution mixer (16) first liquid phase imports; Solution mixer (16) first liquid-phase outlets are being communicated with the liquid phase import that heat exchanger-generator (2) occurs to absorb, and solution mixer (16) second liquid phase import is being communicated with high-pressure solution pump (11) outlet.
3. the efficient HGAX absorption type refrigerating unit of one as claimed in claim 2, is characterized in that: generator (1) and generation absorb series connection between heat exchanger-generator (2) and be provided with solution heating generator (17); The pyrosol of the liquid-phase outlet of generator (1) makes it produce steam the solution heating of higher refrigerant concentration in solution heating generator (17) as thermal source.
4. the efficient HGAX absorption type refrigerating unit of one as claimed in claim 3, it is characterized in that: the solution of high-pressure solution pump (11) outlet is taken away the thermic load of solution cooling absorption device (14) as just the low-temperature receiver of solution cooling absorption device (14), between the rare refrigerant concentration solution in solution and the solution cooling absorption device (14) of high-pressure solution pump (11) outlet and steam, mass transport process does not occur.
5. the efficient HGAX absorption type refrigerating unit of one as described in claim 1 or 2 or 3, is characterized in that: described first throttle element (5), second section fluid element (12) and the 3rd restricting element (15) are choke valve or capillary or throttle orifice.
6. the efficient HGAX absorption type refrigerating unit of one as described in claim 1 or 2 or 3, is characterized in that: described steam boosting parts (7) are compressor or compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424202.4U CN204006779U (en) | 2014-07-30 | 2014-07-30 | A kind of efficient HGAX absorption type refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424202.4U CN204006779U (en) | 2014-07-30 | 2014-07-30 | A kind of efficient HGAX absorption type refrigerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006779U true CN204006779U (en) | 2014-12-10 |
Family
ID=52046772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420424202.4U Expired - Lifetime CN204006779U (en) | 2014-07-30 | 2014-07-30 | A kind of efficient HGAX absorption type refrigerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204006779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197575A (en) * | 2014-07-30 | 2014-12-10 | 中国电子科技集团公司第三十八研究所 | Efficient HGAX absorption refrigeration device |
| CN104567090B (en) * | 2015-01-20 | 2016-09-07 | 浙江大学 | A kind of trans critical cycle provides two-stage absorption cycle that the composite refrigeration system of heat occurs |
-
2014
- 2014-07-30 CN CN201420424202.4U patent/CN204006779U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197575A (en) * | 2014-07-30 | 2014-12-10 | 中国电子科技集团公司第三十八研究所 | Efficient HGAX absorption refrigeration device |
| CN104567090B (en) * | 2015-01-20 | 2016-09-07 | 浙江大学 | A kind of trans critical cycle provides two-stage absorption cycle that the composite refrigeration system of heat occurs |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101968288B (en) | Absorption-compression composite refrigeration cycle system | |
| CN100498128C (en) | Low grade energy driven and mechanical power driven composite heat pump, refrigeration system | |
| CN102116539B (en) | Adsorption and compression composite heat pump system driven by multiple heat sources | |
| CN103836792B (en) | Heat pump and hot water heating combined system | |
| CN101776347B (en) | Absorption type refrigerating unit with pressure recovery part | |
| CN102226601B (en) | Multifunctional injection heat pump unit | |
| CN101871702B (en) | Double heat source high-efficiency absorption refrigerating plant | |
| CN101737998B (en) | Absorption type refrigerating unit for fully recovering waste heat | |
| CN103423912B (en) | A kind of Miniature wind cold type Absorption Refrigerator | |
| CN204006779U (en) | A kind of efficient HGAX absorption type refrigerating unit | |
| CN103868281B (en) | A kind of single/double stage compresses switchable tri-generation system of ground-source heat pump | |
| CN109631413A (en) | A kind of absorption/compression mixture circulatory system adsorbing cooling air-breathing | |
| CN102679623B (en) | Ammonia-water-absorption water refrigerating and heating system device | |
| CN104896786A (en) | Combined cooling and heating integrated machine with double evaporators | |
| CN201740309U (en) | Solar energy and geothermy comprehensive utilization lithium bromide absorption heat pump | |
| CN211120096U (en) | Absorption refrigeration system with double ejectors | |
| CN204705070U (en) | A kind of cold and heat combined supply all-in-one of double evaporators | |
| CN103175332A (en) | Two-stage absorption refrigeration circulation system based on double working pairs and refrigeration method thereof | |
| CN101776345B (en) | High-efficient 1.x-effect absorption-type refrigeration device | |
| CN104197575B (en) | Efficient HGAX absorption refrigeration device | |
| CN110500688B (en) | Dilution type refrigeration heat pump system for air conditioning by utilizing dilution heat | |
| CN203518326U (en) | Domestic combined cooling heating and power system | |
| CN210980197U (en) | Dilution type refrigeration heat pump system for air conditioning by using dilution heat | |
| CN101187510A (en) | Three-effect absorption refrigeration system | |
| CN203478676U (en) | Small air-cooled absorption refrigerating machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |