CN202393085U - Thermodynamic centrifugal cold and hot water machine unit - Google Patents
Thermodynamic centrifugal cold and hot water machine unit Download PDFInfo
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- CN202393085U CN202393085U CN2011205433612U CN201120543361U CN202393085U CN 202393085 U CN202393085 U CN 202393085U CN 2011205433612 U CN2011205433612 U CN 2011205433612U CN 201120543361 U CN201120543361 U CN 201120543361U CN 202393085 U CN202393085 U CN 202393085U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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Abstract
The utility model discloses a thermodynamic centrifugal cold and hot water machine unit. The cold and hot water machine unit is characterized by comprising a refrigerant circulating system and a centrifugal expansion machine system, wherein a screw rotor of the centrifugal expansion machine system is in driving connection with a centrifugal compressor of the refrigerant circulating system; and a condensing coil of the refrigerant circulating system is positioned in a generator of the centrifugal expansion machine system. The thermodynamic centrifugal cold and hot water machine unit is reasonably deigned and can effectively improve refrigeration energy efficiency rate; an electrically driven refrigeration machine unit can be realized and mechanical energy conversion and combination can be performed by using low-grade thermal energy, so that electric energy consumption of a whole refrigeration air conditioner system can be reduced, and the energy efficiency of the refrigeration air conditioner is improved.
Description
Technical field
The utility model belongs to refrigeration and heating combined equipment technology, and concrete to relate to a kind of electric power that is applied to be that the energy and improve through the used heat utilization freezes and the centrifugal hot and cold water unit of heat power of heating energy efficiency ratio.
Background technology
In the prior art, refrigeration system mainly is the energy with electric power, can be divided into centrifugal air-conditioning unit, air-cooled air-conditioning unit, piston type air-conditioner unit, the screw air-conditioning unit equipressure formula air-conditioning unit that contracts; The central air-conditioning that also has is the energy with the fossil fuel, and it can be divided into the lithium bromide absorption type air conditioner group according to working medium type difference, ammonia-water absorption type air-conditioning unit etc.The compression-type refrigeration unit Energy Efficiency Ratio that with electric power is the energy is higher with respect to the absorption type air-conditioner unit, but consumes high-grade electric energy; The absorption type air-conditioner unit consumes fossil fuel or industrial waste heat resource, but Energy Efficiency Ratio is low, is generally less than 1.Conventional centrifugal hot and cold water unit adopts centrifugal compressor to drive working medium circular flow, realizes under the different operating modes freezing or heating, and centrifugal compressor is by motor driven.The running of air conditioner refrigerating technology is the refrigeration air-conditioner unit through consuming high-grade electric energy or fossil fuel at present, is discharged to heat energy too much in the building outside the building, thereby reaches the effect that temperature lowers in the building.All kinds of buildings use above-mentioned central air-conditioning all can have following defective, for example summer power shortage; City local air temperature raises significantly, tropical island effect occurs; And excessive air-conditioning refrigerant fluorochemical is discharged in the atmosphere problem that damages the ozone layer.Above-mentioned refrigeration air-conditioner also consumes mass energy simultaneously, has directly or indirectly increased the discharging of CO2.
Summary of the invention
The utility model provides a kind of reasonable in design, centrifugal hot and cold water unit of heat power that can effectively improve the refrigeration efficiency ratio.It can realize the refrigeration unit that electric energy drives and utilize low grade heat energy to carry out mechanical energy transforming combination, thereby reduces the power consumption of whole refrigerated air-conditioning system, improves the efficiency of refrigeration air-conditioner.
The technical scheme that the utility model adopted is following:
The centrifugal hot and cold water unit of a kind of heat power; It is characterized in that said hot and cold water unit comprises refrigerant-cycle systems and centrifugal expander system, a screw rotor of said centrifugal expander system drives with a centrifugal compressor of refrigerant-cycle systems and is connected; The condenser coil of said refrigerant-cycle systems is positioned at the generator of said centrifugal expander system.
In one embodiment; Said refrigerant-cycle systems comprises an evaporimeter; Be provided with the cooling coil that is connected with the ventilated disc guard system in this evaporimeter; This steamer also connects the low-temperature refrigerant pipeline is set, and the other end of this low-temperature refrigerant pipeline is communicated with the outlet of the condenser coil that is positioned at said generator.
In one embodiment, after said low-temperature refrigerant pipeline is drawn via said evaporimeter, the outlet of the coil pipe in the after-condenser of connecting, the inlet of this coil pipe connects the outlet of the condenser coil in the said generator; This after-condenser connects the cooling water circulation line of a cooling system.
In one embodiment, said evaporimeter also is communicated with a centrifugal compressor is set, and this centrifugal compressor connects the inlet of said condenser coil through a high temperature refrigerant jet chimney.
In one embodiment, said centrifugal compressor is driven by a variable-frequency motor and connects, and this drive motors is equipped with frequency-changing control system is set.
In another embodiment; Said centrifugal expander system comprises generator, economic benefits and social benefits heat energy translator, secondary heat exchange device, centrifugal decompressor and absorber, is provided with working medium transfer pipeline and circulating pump between said generator, economic benefits and social benefits heat energy translator, secondary heat exchange device and the absorber.
In the embodiment, said generator top is provided with normal temperature high concentration working medium spray equipment again, warm working medium catch box during the bottom is provided with, and warm working medium catch box connects the working medium spray equipment at secondary generator top in this through a working medium transfer pipeline.
In the another embodiment; The top of said generator is positioned at the working substance steam nozzle of economic benefits and social benefits heat energy translator through working substance steam pipeline connection one; This working medium nozzle is communicated with the air inlet of centrifugal decompressor via certain compression swelling device; The level pressure expander connects warm medium steam passage in, and warm medium steam passage connects the top of secondary generator in this.
In one embodiment; The exhaust outlet of said centrifugal decompressor connects the top of absorber; The top of this absorber is provided with a low-temperature and low-concentration working medium spray equipment, and this low-temperature and low-concentration spray equipment is positioned at the low concentration working medium catch box of secondary generator bottom through cryogenic fluid pipeline connection one.
In one embodiment; The bottom of said absorber is provided with high concentration working medium catch box; This high concentration working medium catch box connects a high concentration working medium carrier pipe, and the other end of this high concentration working medium carrier pipe is positioned at the top of generator and connects a normal temperature high concentration working medium spray equipment.
The centrifugal hot and cold water unit of this heat power adopts centrifugal expander system as auxiliary power source; Be converted into mechanical energy through centrifugal expander system utilization low grade heat energy or other low grade heat energies in the building to outer discharging; This mechanical energy is as the Systems of Centrifugal Compressor Unit process auxiliary drive energy of refrigerant-cycle systems; Make whole refrigerant-cycle systems have higher Energy Efficiency Ratio; Reduce the energy resource consumption of refrigerant-cycle systems, and reduced the used heat resource and enter in the outer environment of building, effectively reduced outdoor environment temperature; This centrifugal expander system can also reduce the use cost of refrigerant-cycle systems simultaneously, alleviates electricity consumption pressure, and reduces emission of carbon-dioxide.
Under cooling condition, centrifugal compressor adopts variable-frequency motor and centrifugal decompressor driven in common; During unit starting, centrifugal compressor is by the variable-frequency motor single driving, when treating that centrifugal decompressor is converted into shaft work output to air-conditioning waste heat, and driven in common; The power output checkout gear is installed on centrifugal decompressor, and the power output of centrifugal decompressor power output and variable-frequency motor is mated by frequency-changing control system; Under the different refrigeration duty of air-conditioning, variable-frequency motor is exported corresponding power.
The beneficial effect of the utility model is; The centrifugal hot and cold water unit of this heat power is reasonable in design, can effectively improve the refrigeration efficiency ratio; It can realize the refrigeration unit that electric energy drives and utilize low grade heat energy to carry out mechanical energy transforming combination; Thereby reduce the power consumption of whole refrigerated air-conditioning system, improve the efficiency of refrigeration air-conditioner.
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further elaboration.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment.
The specific embodiment
The centrifugal hot and cold water unit of this heat power is the novel refrigerant circulatory system that is applied to field of heating ventilation air conditioning, its adopt electric energy as drive energy in, utilize in the building to the low grade heat energy of outer discharging, make it change into mechanical energy.Mechanical energy drives the Systems of Centrifugal Compressor Unit refrigeration again, thereby reduces the electric energy input of whole refrigerant-cycle systems, improves the Energy Efficiency Ratio of refrigerant-cycle systems.
As shown in Figure 1, the centrifugal hot and cold water unit of this heat power mainly comprises refrigerant-cycle systems, outdoor heat exchange system and centrifugal expander system.One power output shaft 131 of centrifugal expander system drives with a centrifugal compressor 220 of refrigerant-cycle systems and is connected; The condenser coil 112 of the cold-producing medium of refrigerant-cycle systems is positioned at the generator 110 of centrifugal expander system.This condenser coil is realized afterheat utilization and is converted mechanical energy into by centrifugal expander system as the thermal source heat exchanger in the generator.
Refrigerant-cycle systems has an evaporimeter 210; Be provided with the cooling coil 211 that is connected with the ventilated disc guard system in this evaporimeter; For the user provides low-temperature receiver, the ventilated disc guard system forms the low-temperature receiver circulation of a sealing, and the evaporimeter connection is provided with a low-temperature refrigerant pipeline 212; The other end of this low-temperature refrigerant pipeline is communicated with the outlet of the condenser coil 112 that is positioned at generator; Cold-producing medium in the condenser coil in generator 110 after the process heat exchange can be used as the evaporation heat-absorbing medium of evaporimeter 210 after supercooling, for the further refrigeration of this cold-producing medium in evaporimeter that improve, after this low-temperature refrigerant pipeline 212 is drawn via evaporimeter; Also the connect outlet of the coil pipe 241 in the after-condenser 240, the inlet of this coil pipe connects the outlet of the condenser coil in the generator; This after-condenser 240 connects the cooling water circulation line of a cooling system 242.Can further reduce the temperature of cold-producing medium through this after-condenser 240, realize the effect of evaporation heat absorption in the better evaporimeter.The other end connection of evaporimeter 210 is provided with centrifugal compressor 220, and this centrifugal compressor connects the inlet of condenser coils 112 through a high temperature refrigerant jet chimney 221.Form the circulation of a cold-producing medium thus.Centrifugal compressor 220 is driven by a variable-frequency motor 222 and connects, and this drive motors is equipped with frequency-changing control system 223 is set.Centrifugal decompressor comprises casing and two intermeshing screw rotors that are positioned at casing, and wherein an end of a helical rotor stretches out casing formation power output shaft 131, and this power output shaft drives centrifugal compressor 220.
Centrifugal expander system comprises generator 110, economic benefits and social benefits heat energy translator 120, secondary heat exchange device 124, centrifugal decompressor 130 and absorber 140; Be provided with working medium transfer pipeline and circulating pump between generator 110, economic benefits and social benefits heat energy translator 120, secondary heat exchange device 124 and the absorber 140, realize that the circulation of working medium is carried.Generator 110 tops are provided with normal temperature high concentration working medium spray equipment; Warm working medium catch box 113 during the bottom is provided with; The middle part is a condenser coil 112, and warm working medium catch box 113 connects the working medium spray equipment at secondary generator 124 tops in this through a working medium transfer pipeline 114.The top of generator 110 is positioned at the working substance steam nozzle 111 of economic benefits and social benefits heat energy translator through working substance steam pipeline connection one; This working medium nozzle is communicated with the air inlet 121 of centrifugal decompressor via certain compression swelling device 122; Level pressure expander 122 connects warm medium steam passage 123 in, and warm medium steam passage 123 connects the top of secondary generator 124 in this.The exhaust outlet of centrifugal decompressor connects the top of absorber 140; The top of this absorber is provided with a low-temperature and low-concentration working medium spray equipment, and this low-temperature and low-concentration spray equipment connects the low concentration working medium catch box 125 that is positioned at secondary generator bottom through a cryogenic fluid pipeline 126.The bottom of absorber is provided with high concentration working medium catch box 141; This high concentration working medium catch box 141 connects a high concentration working medium carrier pipe 142, and the other end of this high concentration working medium carrier pipe is positioned at the top of generator 110 and connects normal temperature high concentration working medium spray equipment.
Claims (10)
1. centrifugal hot and cold water unit of heat power; It is characterized in that said hot and cold water unit comprises refrigerant-cycle systems and centrifugal expander system, a screw rotor of said centrifugal expander system drives with a centrifugal compressor of refrigerant-cycle systems and is connected; The condenser coil of said refrigerant-cycle systems is positioned at the generator of said centrifugal expander system.
2. the centrifugal hot and cold water unit of heat power according to claim 1; It is characterized in that said refrigerant-cycle systems comprises an evaporimeter; Be provided with the cooling coil that is connected with the ventilated disc guard system in this evaporimeter; This steamer also connects the low-temperature refrigerant pipeline is set, and the other end of this low-temperature refrigerant pipeline is communicated with the outlet of the condenser coil that is positioned at said generator.
3. the centrifugal hot and cold water unit of heat power according to claim 2; After it is characterized in that said low-temperature refrigerant pipeline is drawn via said evaporimeter; The connect outlet of the coil pipe in the after-condenser, the inlet of this coil pipe connects the outlet of the condenser coil in the said generator; This after-condenser connects the cooling water circulation line of a cooling system.
4. the centrifugal hot and cold water unit of heat power according to claim 2 is characterized in that said evaporimeter also is communicated with a centrifugal compressor is set that this centrifugal compressor connects the inlet of said condenser coil through a high temperature refrigerant jet chimney.
5. the centrifugal hot and cold water unit of heat power according to claim 1 is characterized in that said centrifugal compressor drives connection by a variable-frequency motor, and this drive motors is equipped with frequency-changing control system is set.
6. the centrifugal hot and cold water unit of heat power according to claim 1; It is characterized in that said centrifugal expander system comprises generator, economic benefits and social benefits heat energy translator, secondary heat exchange device, centrifugal decompressor and absorber, is provided with working medium transfer pipeline and circulating pump between said generator, economic benefits and social benefits heat energy translator, secondary heat exchange device and the absorber.
7. the centrifugal hot and cold water unit of heat power according to claim 6; It is characterized in that said generator top is provided with normal temperature high concentration working medium spray equipment; Warm working medium catch box during the bottom is provided with, warm working medium catch box connects the working medium spray equipment at secondary generator top in this through a working medium transfer pipeline.
8. the centrifugal hot and cold water unit of heat power according to claim 7; It is characterized in that the top of said generator is positioned at the working substance steam nozzle of economic benefits and social benefits heat energy translator through working substance steam pipeline connection one; This working medium nozzle is communicated with the air inlet of centrifugal decompressor via certain compression swelling device; The level pressure expander connects warm medium steam passage in, and warm medium steam passage connects the top of secondary generator in this.
9. the centrifugal hot and cold water unit of heat power according to claim 6; It is characterized in that the exhaust outlet of said centrifugal decompressor connects the top of absorber; The top of this absorber is provided with a low-temperature and low-concentration working medium spray equipment, and this low-temperature and low-concentration spray equipment is positioned at the low concentration working medium catch box of secondary generator bottom through cryogenic fluid pipeline connection one.
10. the centrifugal hot and cold water unit of heat power according to claim 6; The bottom that it is characterized in that said absorber is provided with high concentration working medium catch box; This high concentration working medium catch box connects a high concentration working medium carrier pipe, and the other end of this high concentration working medium carrier pipe is positioned at the top of generator and connects a normal temperature high concentration working medium spray equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205433612U CN202393085U (en) | 2011-12-22 | 2011-12-22 | Thermodynamic centrifugal cold and hot water machine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205433612U CN202393085U (en) | 2011-12-22 | 2011-12-22 | Thermodynamic centrifugal cold and hot water machine unit |
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| Publication Number | Publication Date |
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| CN202393085U true CN202393085U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205433612U Expired - Fee Related CN202393085U (en) | 2011-12-22 | 2011-12-22 | Thermodynamic centrifugal cold and hot water machine unit |
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| Country | Link |
|---|---|
| CN (1) | CN202393085U (en) |
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2011
- 2011-12-22 CN CN2011205433612U patent/CN202393085U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20131222 |