CN102338456A - Refrigerating machine heat recovery equipment - Google Patents
Refrigerating machine heat recovery equipment Download PDFInfo
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- CN102338456A CN102338456A CN2011102155747A CN201110215574A CN102338456A CN 102338456 A CN102338456 A CN 102338456A CN 2011102155747 A CN2011102155747 A CN 2011102155747A CN 201110215574 A CN201110215574 A CN 201110215574A CN 102338456 A CN102338456 A CN 102338456A
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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]
- Y02B30/56—Heat recovery units
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Abstract
The invention relates refrigerating machine heat recovery equipment which comprises a refrigerating tank, a compressor, a heat exchanger, a control unit and a sensor group, the refrigerating tank is communicated with the compressor through a pipeline, and one side of the upper part of the heat exchanger is provided with an exchanger inlet; the other side of the upper part of the heat exchanger is provided with a hot water outlet of the exchanger, the lower part of the heat exchanger is provided with an exchanger outlet, the compressor is communicated with the exchanger inlet by virtue of pipelines; a condenser is communicated with the exchanger outlet by virtue of pipelines, and a condenser pipeline is arranged between the refrigerating tank and the condenser; and the hot water outlet of the exchanger is communicated with a heat storage water tank through the pipelines, and the control unit is connected with the heat exchanger, the heat storage water tank and the sensor group through a signal wire. In the heat recovery equipment provided by the invention, the modernization control techniques such as temperature, pressure sensing and the like are fully utilized so as to realize multi-point automatic control of refrigerating cycle and hot water circulation, and the equipment has the advantages of lower manufacturing cost, high rate of return on investment and remarkable effect.
Description
Technical field
The invention belongs to refrigeration plant manufacturing technology field, specifically a kind of chiller heat energy recovery device.
Background technology
Refrigeration machine produces great amount of heat in refrigeration.According to refrigeration machine heat radiation formula Qk=W+Qo (Qk: the thermic load W of circulation: cycle consumption acting total amount Qo: infer that overall refrigerating effect) the heat production efficient of refrigerator is very high.The refrigeration standard that country formulates is 2800 watts of 1000 watts of electric refrigerating capacitys; According to thermally equilibrated principle; The minimum heat that produces 2800 watts simultaneously adds 1000 watts of electricity of input, and the actual heat that produces is at 3000～4000 watts; Be discharged in the ambient air under the so big condensation heat regular situation, cause great waste and environmental thermal pollution.
The place of general refrigeration needs a large amount of hot water simultaneously.Like milking parlour, in milk cooling, need a large amount of high-grade hot water (more than 70 ℃) cleaning equipments; When the slaughterhouse needs the freezer frozen product, need also that a large amount of high-grade hot water (more than 80 ℃) loses hair or feathers, the usefulness of cleaning in slaughter line; In cold chain, refrigerating capacity is bigger always for Milk Processing Plant's product storage, needs high-grade hot water (more than 80 ℃) amount also very big simultaneously, is mainly used in product sterilizing and equipment cleaning.Hotel, restaurant, office building etc. have central air-conditioning under cooling condition, also need a large amount of high-grade hot water (more than 60 ℃) be used for bathing etc.
Doing a large amount of work aspect the condensation heat recovery of large-scale refrigerating system abroad, research has relatively early had at present comparatively ripe recuperation of heat handpiece Water Chilling Units in the world.As far back as nineteen fifty-one, two companies of West Germany have developed the central hot water unit of a band regenerative apparatus together, and can be heated to 50 ℃ from 10 ℃ every day with the water of 300L.The two-tube bundle condenser of the heat reclamation type source pump of the 19DE series that some companies of the U.S. produce, the two-tube bundle condenser refrigerator of air-cooled heat reclamation type group, centrifugal recuperation of heat handpiece Water Chilling Units and three grades of centrifugal recuperation of heat handpiece Water Chilling Units of compression etc. all are the products that condensation heat reclaims.So-called two-tube bundle just is to use two condensers, and one is used for normal use, and another is used to reclaim condensation heat.External this large-scale refrigerator system condensation heat recycling engineering utilization is commonplace.Rohm Hass engineering office building, Tokyo IBM mansion, IBM square, Chicago office building, Tokyo Sanwa Bank, office of Japanese Chubu Electric Power business in one's power Japan ground first mansion all adopted the heat reclamation type heat pump type air conditioning system of two-tube bundle condenser, to reach the purpose of building energy conservation.In the air-conditioning system of Italian Economic Development Committee office block, air conditioner condensation heat is used for domestic hot-water supply, actual measurement shows that the fuel cost that can save conventional system 100% in the hottest month can be saved the expense more than 70% in other months.
China's research is in this respect started late.In recent years; People reclaim the condensation heat of large-scale centralized air-conditioning systems such as medium-to-high grade hotel, star hotel and are used for domestic hot-water supply and predict; Through analyzing the matching relationship of refrigeration machine condensation heat and domestic hot-water's consumption; And, think that it is feasible utilizing air conditioner condensation heat to heat the domestic hot-water through the practical project demonstration, have well energy-conservation and economic worth.Harbin Institute of Technology predicts and estimates in the application of China for the free hot water supply in medium-to-high grade hotel; Present medium-to-high grade hotel hot water supply system and existing energy consumption of air-conditioning system and problem of environmental pollution have been analyzed; Proposition unites two into one two kinds of systems; Free hot water supply is carried out in the mutual supplement with each other's advantages of bringing into play on its energy, can obtain obvious energy-saving effect.Practical applications early is in the refrigeration system of China Jilin Province Jilin artificial ice stadium, to have adopted the condensation heat recovery scheme, reclaims the condenser heat that is used for heat hot water and accounts for 34.95% of total discharging condenser heat, has played good energy-conserving action.In addition, happy scape holiday inn of Guangdong Zhong Shan and Yan Ling mansion reclaim the preparation that condenser heat is used for the domestic hot-water through the transformation to original handpiece Water Chilling Units, and construction investment can be regained at 6～8 months.Outer guesthouse all adopts the condensation heat recovery technology in New Asia Hotel, Shanghai and the Shanghai University of Foreign Languages, and the heat that reclaims is used to heat hotel guest room and employee's water for bathing, and actual measurement shows that its heat recovery efficiency is 55%.In a word, the heat recovery rate of heat recovery equipment is not high at present, and the hot water temperature can only reach 50-60 ℃.
Summary of the invention
The present invention has overcome the deficiency of prior art; Proposed a kind of chiller heat energy recovery device, after this equipment adopted the heat recovery equipment of this special construction, can make full use of a large amount of condensation heat that are discharged under the regular situation in the ambient air provided production (life) to use high-grade hot water; Increased the overall utilization of the energy greatly; The on-the-spot thermal efficiency can be higher than 5%, and the thermal efficiency can be higher than 70%, and the water temperature of recovery can reach 90-100 ℃.
Technical scheme of the present invention is: a kind of chiller heat energy recovery device; Comprise cold-storage jar, compressor, heat exchanger, control module and sensor groups; Said cold-storage jar is connected with compressor through pipeline, and one side is provided with the interchanger import on heat exchanger top, and opposite side is provided with the interchanger hot water outlet on heat exchanger top; Be provided with exchanger outlet in the heat exchanger bottom; Said compressor is connected with the interchanger import through pipeline, and said condenser is connected with exchanger outlet through pipeline, between said cold-storage jar and condenser, is provided with a condenser tubes; Be connected with a heat storage water tank through pipeline at said interchanger hot water outlet, said control module links to each other with heat exchanger, heat storage water tank and sensor groups through holding wire.
On said heat exchanger, be provided with the magnesium rod.
Said sensor groups comprises pressure sensor and temperature sensor, and said pressure sensor is located on the condenser tubes, and said temperature sensor is located on the heat exchanger.
Bottom at said heat exchanger is provided with magnetic valve.
On said heat storage water tank, be provided with liquid level sensor and domestic hot-water outlet.
The present invention has following beneficial effect:
The present invention makes full use of the multiple spot of modernized control technology realization kind of refrigeration cycle such as temperature, pressure sensing and hot water circuit and controls automatically, and manufacturing cost of the present invention is lower, and rate of return on investment is high, and efficient is high, belongs to the long-term use of once investment.
In addition, the present invention also has the following advantages:
(1) energy-conservation: under the situation of not extra power consumption, utilize process of refrigerastion must discharging " waste heat " heat high-grade hot water (can reach 90～100 ℃) as the energy, avoided being used to adding the consumption of the primary energy of hot water;
(2) environmental protection: avoid the used heat uncontrollable discharge, alleviate " urban heat island " effect; Need not to be provided with boiler, the environmental pollution of having avoided a large amount of flue gases that burning boiler discharged to cause;
(3) improve refrigerating efficiency 25%～30%, reduced the refrigeration plant operating cost.Calculate with the every consumption of refrigeration machine 1KWh electric energy, adopt this heat recovery equipment after, the condensation heat of recovery can be 15 ℃ with the 45Kg temperature and be heated to 60 ℃, if above-mentioned heat is provided by oil burning boiler, burning diesel oil expense then: 1.8 (units); If the combustion gas expense is provided by gas fired-boiler: 1.2 (units); If provided by electric energy, the power consumption expense is: 1.6 (units).
Description of drawings
Further specify the present invention below in conjunction with the accompanying drawing and the specific embodiment.
Fig. 1 is an illustrative view of functional configuration of the present invention.
Among the figure, 1, cold-storage jar; 2, compressor; 3, running water inlet; 4, magnetic valve; 5, magnesium rod; 6, control module; 7, interchanger import; 8, temperature sensor; 9, liquid level sensor; 10, heat storage water tank; 11, domestic hot-water's outlet; 12, heat exchanger; 13, cooling water inlet; 14, exchanger outlet; 15, interchanger hot water outlet; 16, blower fan; 17, pressure sensor; 18, warm water outlet; 19 condensers; 20, condenser tubes.
The specific embodiment:
Referring to shown in Figure 1; The present invention is in compressor 2 refrigeration; Produce great amount of heat, according to refrigeration radiating formula Qk=W+Qo (Qk: the thermic load W of circulation: cycle consumption acting total amount Qo: infer that overall refrigerating effect) the heat production efficient of refrigerator is very high.Getting rid of the liquid refrigerant temperature of HTHP when general refrigerant is F22 refrigeration machine operate as normal is 100～130 ℃, and temperature is higher.
The high temperature refrigerant that compressor 2 is discharged passes through heat exchanger 12 from interchanger import 7 and exchanger outlet 14; Water in the heat exchanger 12 heats from top to down, is provided with interchanger hot water outlet 15 in heat exchanger 12 upper side, because the coolant-temperature gage in the heat exchanger 12 reduces from top to down gradually; And hot water is up walked according to the natural law; So hot water is difficult to exchange up and down in the heat exchanger 12, high temperature refrigerant flows out through the exchanger outlet 14 of internal pipeline from heat exchanger 12 after the interchanger import; The temperature that flows out is a little more than the temperature of normal temperature running water, and this just proves that the heat overwhelming majority of discharging from compressor is absorbed by water.Because the top of heat exchanger 12 is provided with temperature sensor 8, when temperature inversion, control module 6 is through controlling the water flow of running water at the magnetic valve 4 of the bottom of controlling interchanger 12; The temperature of testing when the temperature sensor 8 at top reaches predetermined temperature, and control module 6 control magnetic valves are opened, and running water is through running water inlet 3 and magnetic valve 4 entering heat exchangers 12; Simultaneously, the hot water at the top of heat exchanger 12 gets into heat storage water tank 10 through pipeline, on heat storage water tank 10, is provided with the domestic hot-water and exports 11; When the hot water temperature is lower than design temperature; Control module 6 control magnetic valves 4 cut out it, and at this moment, the current of cooling water inlet 13 are cut off; So circulation realizes the high efficiente callback of condensation heat; Meanwhile; Heat storage water tank 10 is provided with liquid level sensor 9; When the liquid level that detects liquid level sensor 9 when control module 6 reached setting value, control module 6 control magnetic valves 4 cut out, and prevent that the hot water of heat storage water tank 10 from overflowing; At this moment, heat exchanger 12 unnecessary heats output to condenser 19 through exchanger outlet 14 and dissipate.Be provided with warm water outlet 18 at the middle part of heat exchanger 12, the convenient use; Temperature sensor 8 is control module 6 services with liquid level sensor 9 jointly, makes control module 6 control magnetic valves 4.
Between condenser 19 and cold-storage jar 1, connecting a condenser tubes 20, on condenser 19, be provided with a temperature transducer, temperature transducer also links to each other with control module 6; Be located on the condenser tubes 20 pressure sensor 17 and temperature transducer together; Through the blower fan 16 on the control module 6 control condensers 19, any one surpasses preset index when pressure and temperature wherein, and control module 6 control blower fans 16 are opened; Through condenser 19 radiating and coolings; Effectively protection compressor 2, and maintenance compressor 2 high-efficient operation, it is relatively stable to keep compressor 2 temperature simultaneously.
Claims (7)
1. chiller heat energy recovery device; Comprise cold-storage jar, compressor, heat exchanger, control module and sensor groups; It is characterized in that: said cold-storage jar is connected with compressor through pipeline, and one side is provided with the interchanger import on heat exchanger top, and opposite side is provided with the interchanger hot water outlet on heat exchanger top; Be provided with exchanger outlet in the heat exchanger bottom; Said compressor is connected with the interchanger import through pipeline, and said condenser is connected with exchanger outlet through pipeline, between said cold-storage jar and condenser, is provided with a condenser tubes; Be connected with a heat storage water tank through pipeline at said interchanger hot water outlet, said control module links to each other with heat exchanger, heat storage water tank and sensor groups through holding wire.
2. chiller heat energy recovery device according to claim 1 is characterized in that: on said heat exchanger, be provided with the magnesium rod.
3. chiller heat energy recovery device according to claim 1 and 2 is characterized in that: said sensor groups comprises pressure sensor and temperature sensor, and said pressure sensor is located on the condenser tubes, and said temperature sensor is located on the heat exchanger.
4. chiller heat energy recovery device according to claim 3 is characterized in that: the bottom at said heat exchanger is provided with magnetic valve.
5. chiller heat energy recovery device according to claim 1 is characterized in that: the bottom at said heat exchanger is provided with magnetic valve.
6. chiller heat energy recovery device according to claim 1 is characterized in that: on said heat storage water tank, be provided with liquid level sensor and domestic hot-water outlet.
7. chiller heat energy recovery device according to claim 4 is characterized in that: on said heat storage water tank, be provided with liquid level sensor and domestic hot-water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102155747A CN102338456A (en) | 2011-07-29 | 2011-07-29 | Refrigerating machine heat recovery equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102155747A CN102338456A (en) | 2011-07-29 | 2011-07-29 | Refrigerating machine heat recovery equipment |
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| CN102338456A true CN102338456A (en) | 2012-02-01 |
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| CN2011102155747A Pending CN102338456A (en) | 2011-07-29 | 2011-07-29 | Refrigerating machine heat recovery equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499143A (en) * | 2013-09-18 | 2014-01-08 | 东莞市康源节能科技有限公司 | Split type heat-pump water heater and water supply control method thereof |
| CN108204693A (en) * | 2017-12-26 | 2018-06-26 | 重庆翔源制冷设备股份有限公司 | Refrigeration waste heat is converted into environmentally friendly new energy unit |
| CN108746117A (en) * | 2018-06-06 | 2018-11-06 | 天津嘉立荷牧业集团有限公司 | A kind of cattle farm energy-saving and emission-reduction and resources circulation reutilization system |
Citations (6)
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| CN2418408Y (en) * | 2000-04-28 | 2001-02-07 | 谭坤雄 | Efficient heat-recovering refrigerating machine group |
| CN2508166Y (en) * | 2001-09-26 | 2002-08-28 | 张力 | Air-conditioning water heating equipment |
| CN2593133Y (en) * | 2003-02-14 | 2003-12-17 | 广州恒星冷冻机械制造有限公司 | Refrigeration heat recovery unit structure |
| CN2781235Y (en) * | 2005-03-30 | 2006-05-17 | 谢坤 | Air-conditioning hot water insulation box |
| CN201488278U (en) * | 2009-09-20 | 2010-05-26 | 内蒙古新诺生态供暖科技发展有限公司 | Food-grade residual heat-recovering heat pump hot water unit |
| CN202229386U (en) * | 2011-07-29 | 2012-05-23 | 青岛市畜牧研究所饲料公司 | Refrigerating machine heat recovery equipment |
-
2011
- 2011-07-29 CN CN2011102155747A patent/CN102338456A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2418408Y (en) * | 2000-04-28 | 2001-02-07 | 谭坤雄 | Efficient heat-recovering refrigerating machine group |
| CN2508166Y (en) * | 2001-09-26 | 2002-08-28 | 张力 | Air-conditioning water heating equipment |
| CN2593133Y (en) * | 2003-02-14 | 2003-12-17 | 广州恒星冷冻机械制造有限公司 | Refrigeration heat recovery unit structure |
| CN2781235Y (en) * | 2005-03-30 | 2006-05-17 | 谢坤 | Air-conditioning hot water insulation box |
| CN201488278U (en) * | 2009-09-20 | 2010-05-26 | 内蒙古新诺生态供暖科技发展有限公司 | Food-grade residual heat-recovering heat pump hot water unit |
| CN202229386U (en) * | 2011-07-29 | 2012-05-23 | 青岛市畜牧研究所饲料公司 | Refrigerating machine heat recovery equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499143A (en) * | 2013-09-18 | 2014-01-08 | 东莞市康源节能科技有限公司 | Split type heat-pump water heater and water supply control method thereof |
| CN108204693A (en) * | 2017-12-26 | 2018-06-26 | 重庆翔源制冷设备股份有限公司 | Refrigeration waste heat is converted into environmentally friendly new energy unit |
| CN108746117A (en) * | 2018-06-06 | 2018-11-06 | 天津嘉立荷牧业集团有限公司 | A kind of cattle farm energy-saving and emission-reduction and resources circulation reutilization system |
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Application publication date: 20120201 |