CN106352586A - Double machine head heat source tower heat pump unit - Google Patents
Double machine head heat source tower heat pump unit Download PDFInfo
- Publication number
- CN106352586A CN106352586A CN201610890172.XA CN201610890172A CN106352586A CN 106352586 A CN106352586 A CN 106352586A CN 201610890172 A CN201610890172 A CN 201610890172A CN 106352586 A CN106352586 A CN 106352586A
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- Prior art keywords
- condenser
- economizer
- compressor
- heat pump
- cold
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a double machine head heat source tower heat pump unit which comprises a refrigerating system A and a refrigerating system B which are the same. Each refrigerating system comprises a compressor, a condenser, a drying filter, an economizer solenoid valve, a thermostatic expansion valve, a liquid spray solenoid valve, an economizer, an electronic expansion valve and an evaporator. An air outlet of the compressor is connected with the refrigerating fluid input end of the condenser, the refrigerating fluid output end of the condenser is connected with the drying filter, the drying filter is connected with an air suction port of the compressor through the liquid spray solenoid valve, the main side refrigerating fluid input end of the economizer is connected with the drying filter, the main side refrigerating fluid output end is connected with the refrigerating fluid input end of the evaporator, the refrigerating fluid output end of the evaporator is connected with the air suction port of the compressor, the auxiliary side refrigerating fluid output end of the economizer is connected with an economizer port of the compressor, and the auxiliary side refrigerating fluid input end is connected with the drying filter through the thermostatic expansion valve and the economizer solenoid valve, and the performance of the whole unit is improved.
Description
Technical field
The present invention relates to a kind of Double-head heat source tower heat pump unit.
Background technology
Air-conditioning is main architectural energy consumption rich and influential family, how effectively to reduce air conditioning energy consumption, improves efficiency of energy utilization, is air-conditioning
The emphasis of industry research.Along the hot-summer and cold-winter area of the Yangtze river basin, its climatic characteristic is that summer is extremely hot, and winter is clammy for China, empty
Air humidity degree is larger.Mainly there are three kinds in the traditional heavy construction in this region for cold heat ("/" is the meaning of "or") mode at present:
Water cooled chiller+boiler, water/ground source heat pump and air-cooled heat pump.
Wherein, air-cooled heat pump can realize supplying cold heat simultaneously, but the efficiency for cold heat is comparatively relatively low；Water/ground
Source heat pump can realize for cold heat simultaneously and efficiency is all higher, but is limited by geographical environment and initial cost are high；Water-cooled cooling-water machine
Group+boiler cooling/hot mode, its summer operation efficiency high, and winter adopts boiler heat supplying, primary energy ratio is low.
Heat source tower heat pump system is to take into full account hot-summer and cold-winter area climatic environment and existing three kinds of cooling/hot modes
Produce on the basis of pluses and minuses, its summer is capable of efficient cooling, and winter is capable of efficient heat supply, and is not subject to geographical ring
Border limits, and initial cost is relatively low, is the ideal air conditioning system of hot-summer and cold-winter area.But the heat source tower heat pump system of existing design
There are following deficiencies in use:
Firstth, handpiece Water Chilling Units no heat-production functions, although can be met to a certain extent by simple change control system will
Ask, but under heat source tower heat pump heating condition especially when ambient temperature is relatively low, its heating efficiency is very low, and heating load is also tight
Weight is not enough.
Secondth, existing ripe its supplying thermal condition of water/ground source heat pump has larger gap compared with heat source tower heat pump operating mode, its
Heat source tower heat pump operating mode is run, and especially under the relatively low operating mode of ambient temperature, heat capacity is excessively poor.
Thus the characteristic for heat source tower heat pump system, develop a kind of high-efficiency heat pump of suitable heat source tower heat pump system operation
Unit is current research worker issues that need special attention.
Content of the invention
For the problems referred to above, the present invention provides a kind of Double-head heat source tower heat pump unit, greatly improves heat source tower heat pump
Heating efficiency when unit runs in the winter time and heating capacity, improve compressor performance, thus improving whole unit performance simultaneously.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of Double-head heat source tower heat pump unit is it is characterised in that include two sets of identical refrigeration systems a and refrigeration system b, often
Set refrigeration system includes compressor, condenser, device for drying and filtering, economizer electromagnetic valve, heating power expansion valve, hydrojet electromagnetic valve, warp
Ji device, electric expansion valve and vaporizer, the air vent of described compressor is connected and condenser with the cold-producing medium input of condenser
Output of condenser be connected with device for drying and filtering, described device for drying and filtering passes through the air entry phase of hydrojet electromagnetic valve and compressor
Even, the master cold-producing medium input of described economizer is connected with device for drying and filtering and master output of condenser passes through electronic expansion
Valve is connected with the cold-producing medium input of vaporizer, and the output of condenser of described vaporizer is connected with the air entry of compressor, institute
State economizer auxiliary side output of condenser be connected with the economizer interface of compressor and auxiliary side cold-producing medium input pass through heating power
Expansion valve is connected with device for drying and filtering with economizer electromagnetic valve.
Preferably, the water side input phase of the water side outfan of the vaporizer of refrigeration system a and the vaporizer of refrigeration system b
Even, the water side outfan of the condenser of refrigeration system b is connected with the water side input of the condenser of refrigeration system a.
Preferably, it is provided with ball valve between the output of condenser of condenser and device for drying and filtering.
Preferably, it is provided with choke valve between hydrojet electromagnetic valve and the air entry of compressor.
The invention has the beneficial effects as follows:
Firstth, unit arranges two sets of identical refrigeration systems a and refrigeration system b, can be by closing a compression in underload
Machine runs under high loads realizing single compressor, opens two compressor operatings, compressor performance in high load capacity simultaneously
Coefficient is high, thus improving whole unit performance coefficient.
Secondth, two compressors are mutually redundant setting, when one of fault it can be ensured that the normal operation of system.
3rd, heat source tower heat pump unit adopts low temperature spray liquid enthalpy gain technology and economizer heat transfer technology, greatly improves heat
Heating efficiency when source tower source pump is run in the winter time and heating capacity.
4th, refrigeration system a and refrigeration system b adopt type industrial cooling system condenser and vaporizer, and water side heat transfer coefficient is more
Height, switches to the impact to evaporator heat exchange during anti-icing fluid such that it is able to weaken heat source tower heat pump unit heating condition.
5th, refrigeration system a and refrigeration system b adopt type industrial cooling system condenser and vaporizer, each of which refrigeration system
Corresponding condensing pressure and evaporating pressure ratio, compared with conventional refrigeration, all have larger reduction, so that performance demands
Number is greatly improved.
Brief description
Fig. 1 is a kind of structural representation of present invention Double-head heat source tower heat pump unit；
The labelling implication of accompanying drawing is as follows:
1: compressor a；2: shell and tube condenser a；2-1: shell and tube condenser a cold-producing medium input；2-2: shell and tube condenser a
Output of condenser；2-3: shell and tube condenser a water side input；2-4: shell and tube condenser a water side outfan；3: ball valve a；
4: device for drying and filtering a；5: economizer electromagnetic valve a；6: heating power expansion valve a；7: hydrojet electromagnetic valve a；8: choke valve a；9: economizer
a；9-1: economizer a master cold-producing medium input；9-2: economizer a master output of condenser；9-3: economizer a auxiliary side refrigeration
Agent input；9-4: economizer a auxiliary side output of condenser；10: electric expansion valve a；11: shell and tube evaporator a；11-1: shell
Tubular evaparator a cold-producing medium input；11-2: shell and tube evaporator a output of condenser；11-3: shell and tube evaporator a water side
Input；11-4: shell and tube evaporator a water side outfan；12: compressor b；13: shell and tube condenser b；13-1: shell-tube type is cold
Condenser b cold-producing medium input；13-2: shell and tube condenser b output of condenser；13-3: shell and tube condenser b water side inputs
End；13-4: shell and tube condenser b water side outfan；14: ball valve b；15: device for drying and filtering b；16: economizer electromagnetic valve b；17:
Heating power expansion valve b；18: hydrojet electromagnetic valve b；19: choke valve b；20: economizer b；20-1: economizer b master cold-producing medium inputs
End；20-2: economizer b master output of condenser；20-3: economizer b auxiliary side cold-producing medium input；20-4: economizer b auxiliary side
Output of condenser；21: electric expansion valve b；22: shell and tube evaporator b；22-1: shell and tube evaporator b cold-producing medium input；
22-2: shell and tube evaporator b output of condenser；22-3: shell and tube evaporator b water side input；22-4: shell and tube evaporator
B water side outfan.
Specific embodiment
With specific embodiment, technical solution of the present invention is described in further detail below in conjunction with the accompanying drawings, so that ability
The technical staff in domain can be better understood from the present invention and can be practiced, but illustrated embodiment is not as the limit to the present invention
Fixed.
A kind of Double-head (two compressors) heat source tower heat pump unit, as shown in figure 1, include two sets of identical refrigeration systems
A and refrigeration system b, refrigeration system a and refrigeration system b are separate, often set refrigeration system include compressor, condenser,
Device for drying and filtering, economizer electromagnetic valve, heating power expansion valve, hydrojet electromagnetic valve, economizer, electric expansion valve and vaporizer.
The air vent of described compressor be connected with the cold-producing medium input of condenser and the output of condenser of condenser with
Device for drying and filtering is connected, and described device for drying and filtering is connected with the air entry of compressor by hydrojet electromagnetic valve, described economizer
Master cold-producing medium input is connected with device for drying and filtering and the system by electric expansion valve and vaporizer for the master output of condenser
Cryogen input is connected, and the output of condenser of described vaporizer is connected with the air entry of compressor, the auxiliary side of described economizer
Output of condenser is connected with the economizer interface of compressor and auxiliary side cold-producing medium input passes through heating power expansion valve and economizer
Electromagnetic valve is connected with device for drying and filtering.
Preferably, the water side input phase of the water side outfan of the vaporizer of refrigeration system a and the vaporizer of refrigeration system b
Even, the water side outfan of the condenser of refrigeration system b is connected with the water side input of the condenser of refrigeration system a.
Preferably, it is provided with ball valve, hydrojet electromagnetic valve and compression between the output of condenser of condenser and device for drying and filtering
It is provided with choke valve between the air entry of machine.
1 it is described in detail below in conjunction with the accompanying drawings, in Fig. 1, condenser is shell and tube condenser, vaporizer is that shell-tube type steams
Send out device, connected by connecting pipe between refrigeration system a and refrigeration system b.It should be noted that, for the ease of distinguishing, exist respectively
Make a distinction plus a or b after each component names, it corresponds to the part of refrigeration system a and refrigeration system b, i.e. refrigeration system a respectively
Including compressor a1, shell and tube condenser a2, ball valve a3, device for drying and filtering a4, economizer electromagnetic valve a5, heating power expansion valve a6,
Hydrojet electromagnetic valve a7, choke valve a8, economizer a9, electric expansion valve a10 and shell and tube evaporator a11, refrigeration system b includes pressing
Contracting machine b12, shell and tube condenser b13, ball valve b14, device for drying and filtering b15, economizer electromagnetic valve b16, heating power expansion valve b17,
Hydrojet electromagnetic valve b18, choke valve b19, economizer b20, electric expansion valve b21 and shell and tube evaporator b22.
For refrigeration system a:
The refrigerant gas of High Temperature High Pressure are discharged into shell and tube condenser a cold-producing medium input 2- from the air vent of compressor a1
1, high-temperature high-pressure refrigerant gas is condensed into normal temperature high voltage refrigerant liquid, and normal temperature high voltage refrigerant liquid is condensed by shell-tube type
Device a output of condenser 2-2, ball valve a3 flow into device for drying and filtering a4.
Normal temperature high voltage cold-producing medium is divided into three tunnels in device for drying and filtering a4 outlet: part of refrigerant passes through hydrojet electromagnetic valve
A7, choke valve a8 flow into the air entry of compressor a1；Another part cold-producing medium passes through economizer electromagnetic valve a5, heating power expansion valve a6
Enter economizer a auxiliary side cold-producing medium input 9-3, then compressor is flowed into by economizer a auxiliary side output of condenser 9-4
The economizer interface of a1；Most of cold-producing medium is defeated by economizer a master cold-producing medium input 9-1, economizer a master cold-producing medium
Go out to hold 9-2 to flow into electric expansion valve a10, the gas-liquid mixture that the throttling of normal temperature high voltage refrigerant liquid is changed into low-temp low-pressure enters shell
Tubular evaparator a cold-producing medium input 11-1, the refrigerant liquid of low-temp low-pressure seethes with excitement in vaporizer, is changed into low-temp low-pressure system
The air entry of compressor a1 after refrigerant gas, is flowed back to through shell and tube evaporator a output of condenser 11-2.
For refrigeration system b:
The refrigerant gas of High Temperature High Pressure are discharged into shell and tube condenser b cold-producing medium input from the air vent of compressor b12
13-1, high-temperature high-pressure refrigerant gas is condensed into normal temperature high voltage refrigerant liquid, and normal temperature high voltage refrigerant liquid passes through shell-tube type
Condenser b output of condenser 13-2, ball valve b14 flow into device for drying and filtering b15.
Normal temperature high voltage cold-producing medium is divided into three tunnels in device for drying and filtering b15 outlet: part of refrigerant passes through hydrojet electromagnetic valve
B18, choke valve b19 flow into the air entry of compressor b12；Another part cold-producing medium passes through economizer electromagnetic valve b16, thermal expansion
Valve b17 enters economizer b auxiliary side cold-producing medium input 20-3, then passes through economizer b auxiliary side output of condenser 20-4 and flows into
Economizer interface to compressor b12；Most of cold-producing medium passes through economizer b master cold-producing medium input 20-1, economizer b master
Side output of condenser 20-2 flows into electric expansion valve b21, and the throttling of normal temperature high voltage refrigerant liquid is changed into the gas-liquid of low-temp low-pressure
Mixture enters shell and tube evaporator b cold-producing medium input 22-1, and the refrigerant liquid of low-temp low-pressure seethes with excitement in vaporizer, becomes
The air entry of compressor b12 after low-temperature low-pressure refrigerant gas, is flowed back to through shell and tube evaporator b output of condenser 22-2.
Chilled water passes through shell and tube evaporator a water side input 11-3 and flows into, shell and tube evaporator a water side outfan 11-4
It is connected by pipeline with shell and tube evaporator b water side input 22-3, chilled water passes through shell and tube evaporator b water side outfan
22-4 flows out.Vaporizer a11 and vaporizer b22 is connected by the way of counter flow in series, realizes the system evaporation of compressor a1 place
Temperature is high, and coefficient of performance is high, and heat exchange amount increases.
Cooling water passes through shell and tube condenser b water side input 13-3 and flows into, shell and tube condenser b water side outfan 13-4
It is connected by pipeline with shell and tube condenser a water side input 2-3, cooling water passes through shell and tube condenser a water side outfan 2-4
Flow out.Condenser a2 and condenser b13 is connected by the way of counter flow in series, realizes compressor b12 place system condensing temperature
Low, coefficient of performance is high.
Configure economizer in condensator outlet, improve the coefficient of performance of heat source tower heat pump unit and heating at low ambient temperatures
Amount, configures hydrojet electromagnetic valve and hydrojet choke valve in condensator outlet, improves the system of heat source tower heat pump unit at low ambient temperatures
Heat.
The invention has the beneficial effects as follows:
Firstth, unit arranges two sets of identical refrigeration systems a and refrigeration system b, can be by closing a compression in underload
Machine runs under high loads realizing single compressor, opens two compressor operatings, compressor performance in high load capacity simultaneously
Coefficient is high, thus improving whole unit performance coefficient.
Secondth, two compressors are mutually redundant setting, when one of fault it can be ensured that the normal operation of system.
3rd, heat source tower heat pump unit adopts low temperature spray liquid enthalpy gain technology and economizer heat transfer technology, greatly improves heat
Heating efficiency when source tower source pump is run in the winter time and heating capacity.
4th, refrigeration system a and refrigeration system b adopt type industrial cooling system condenser and vaporizer, and water side heat transfer coefficient is more
Height, switches to the impact to evaporator heat exchange during anti-icing fluid such that it is able to weaken heat source tower heat pump unit heating condition.
5th, refrigeration system a and refrigeration system b adopt type industrial cooling system condenser and vaporizer, each of which refrigeration system
Corresponding condensing pressure and evaporating pressure ratio, compared with conventional refrigeration, all have larger reduction, so that performance demands
Number is greatly improved.
These are only the preferred embodiments of the present invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or it is related to be directly or indirectly used in other
Technical field, be included within the scope of the present invention.
Claims (6)
1. a kind of Double-head heat source tower heat pump unit is it is characterised in that include two sets of identical refrigeration systems a and refrigeration system b,
Often set refrigeration system include compressor, condenser, device for drying and filtering, economizer electromagnetic valve, heating power expansion valve, hydrojet electromagnetic valve,
Economizer, electric expansion valve and vaporizer, the air vent of described compressor is connected and condenses with the cold-producing medium input of condenser
The output of condenser of device is connected with device for drying and filtering, and described device for drying and filtering passes through the air entry of hydrojet electromagnetic valve and compressor
It is connected, the master cold-producing medium input of described economizer is connected with device for drying and filtering and master output of condenser is swollen by electronics
Swollen valve is connected with the cold-producing medium input of vaporizer, and the output of condenser of described vaporizer is connected with the air entry of compressor,
The auxiliary side output of condenser of described economizer is connected with the economizer interface of compressor and auxiliary side cold-producing medium input passes through heat
Power expansion valve is connected with device for drying and filtering with economizer electromagnetic valve.
2. a kind of Double-head heat source tower heat pump unit according to claim 1 is it is characterised in that the evaporation of refrigeration system a
The water side outfan of device is connected with the water side input of the vaporizer of refrigeration system b, the water side output of the condenser of refrigeration system b
End is connected with the water side input of the condenser of refrigeration system a.
3. a kind of Double-head heat source tower heat pump unit according to claim 1 is it is characterised in that the cold-producing medium of condenser is defeated
Go out and be provided with ball valve between end and device for drying and filtering.
4. a kind of Double-head heat source tower heat pump unit according to claim 1 is it is characterised in that hydrojet electromagnetic valve and compression
It is provided with choke valve between the air entry of machine.
5. a kind of Double-head heat source tower heat pump unit according to claim 1 is it is characterised in that described condenser is package
Formula condenser.
6. a kind of Double-head heat source tower heat pump unit according to claim 5 is it is characterised in that described vaporizer is package
Formula vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890172.XA CN106352586A (en) | 2016-10-13 | 2016-10-13 | Double machine head heat source tower heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890172.XA CN106352586A (en) | 2016-10-13 | 2016-10-13 | Double machine head heat source tower heat pump unit |
Publications (1)
| Publication Number | Publication Date |
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| CN106352586A true CN106352586A (en) | 2017-01-25 |
Family
ID=57866270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610890172.XA Pending CN106352586A (en) | 2016-10-13 | 2016-10-13 | Double machine head heat source tower heat pump unit |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996660A (en) * | 2017-05-17 | 2017-08-01 | 南京工程学院 | Big temperature difference Double-head heat pump based on heat source tower Yu underground pipe cooperation |
| CN107883606A (en) * | 2017-12-12 | 2018-04-06 | 南京天加环境科技有限公司 | A kind of efficient heat source tower heat pump |
| CN108895711A (en) * | 2018-04-28 | 2018-11-27 | 广东西屋康达空调有限公司 | A kind of screw rod type heat pump machine unit |
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| CN1506649A (en) * | 2002-12-12 | 2004-06-23 | ������������ʽ���� | Heat-transfer apparatus and electronic apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996660A (en) * | 2017-05-17 | 2017-08-01 | 南京工程学院 | Big temperature difference Double-head heat pump based on heat source tower Yu underground pipe cooperation |
| CN107883606A (en) * | 2017-12-12 | 2018-04-06 | 南京天加环境科技有限公司 | A kind of efficient heat source tower heat pump |
| CN108895711A (en) * | 2018-04-28 | 2018-11-27 | 广东西屋康达空调有限公司 | A kind of screw rod type heat pump machine unit |
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