CN205561260U - Can realize air -source heat bump water heater of many operational modes - Google Patents
Can realize air -source heat bump water heater of many operational modes Download PDFInfo
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- CN205561260U CN205561260U CN201620373347.5U CN201620373347U CN205561260U CN 205561260 U CN205561260 U CN 205561260U CN 201620373347 U CN201620373347 U CN 201620373347U CN 205561260 U CN205561260 U CN 205561260U
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Abstract
The utility model discloses a can realize air -source heat bump water heater of many operational modes. The utility model discloses main including establish ties into a refrigerant closed -loop from compressor, condensation rectifying column, high boiling point working medium choke valve, condensing evaporator, low boiling working medium choke valve, the frostless evaporimeter of low -temperature level for the overlapping, establish ties into a closed -loop's high temperature level compressor, high temperature level condenser, high temperature level choke valve, high temperature level evaporating heat exchange ware with the condensation rectifying column, establish ties into a closed -loop's the frostless evaporimeter of solution pump, low -temperature level with tubular heat exchanger in the condensation rectifying column, still include the storage water tank, the storage water tank pass through circulating water pump, solenoid valve, with the condensation distiller in spiral tube heat exchanger and high temperature level condenser form two parallelly connected hydrologic cycle closed -loop. The utility model provides a suitability is strong, can solve frost when moving under low temperature environment, the air -source heat bump water heater of heating effect and poor stability scheduling problem.
Description
Technical field
This utility model belongs to air source heat pump technical field, is specifically related to a kind of based under low temperature ambient conditions
Heat pump can be realized cut between Auto-cascade cycle operational mode, Auto-cascade cycle/high-temperature level pump coupled heat system model
Change, thus realize this system can produce stability and high efficiency high-temperature-hot-water, meet user's heat demand, can be annual
The air source hot pump water heater being applicable to low temperature environment used.
Background technology
At present, water heater market used mainly has electric water heating system, fuel gas water heating system, solar heat
Water system etc..Electric water heating system is bulky, takies the interior space big, and easy scaling is big to waste of energy.
State-of-the art electric water heating system is built-in anodic magnesium rod apparatus for eliminating sludge, solves asking of the easy fouling of this product
Topic.But anodic magnesium rod needs change once for 2 years, brings trouble to maintenance.Fuel gas water heating system was using
Cheng Zhonghui discharges toxic gas because burning is insufficient, easily causes security incident, and it is high to start hydraulic pressure, has
The most high-rise a little users, just cannot start if do not filled booster pump.Fuel gas water heating system installs inconvenience, be
Burrowing on wall, install exhaust fan etc., and different combustion gas, its burner shapes, jet size, combustion gas are led to
Road sectional area is the most different.Solar water heating system installs complexity, such as Rig up error, can affect outside house
Sight, quality and the city look and feel in city；Safeguard cumbersome, because solar water heating system is arranged on outdoor, many
Number is on roof, roof, therefore relative to the more difficult maintenance of electric water heating system and fuel gas water heating system.Solar energy
Hot-water heating system mainly with solar energy as thermal source, continuous rainy weather can not output high-temperature-hot-water, this is also too
One big drawback of sun energy hot-water heating system.
Air source heat pump hot water system, is a gradually ripe new technique, and it comes by consuming a small amount of electric energy
Drive compressor, by vaporizer draw heat from air, transfer heat to condenser and carry out heat hot water,
Thus realize the purpose of hot-water supply.At present, the water heater on market mostly is electric heater or the combustion of highly energy-consuming
Gas water heater, and energy-conserving and environment-protective, air source hot pump water heater easy to use use limited main cause have:
(1) product coolant-temperature gage and the Energy Efficiency Ratio of existing air source hot pump water heater are relatively low；Air source heat pump hot water
Device product coolant-temperature gage is at about 55 DEG C, and the product coolant-temperature gage of electric heater reaches 75 DEG C, therefore the storage of Teat pump boiler
Bulky many than other form water heaters of water tank；
(2) existing air source hot pump water heater is time ambient temperature is on the low side in the winter time, the evaporating temperature fall of system
Low, in the case of condensation temperature is constant, compression ratio increases, properly functioning beyond ordinary single-stage compressibility
Marginal value, compressor volumetric efficiency reduces, and displacement reduces, and the increase of compression ratio causes compressor to arrange
Temperature is too high, exceedes the normal working range of compressor, causes high frequent start and stop, and system cannot be just
Often work, may result in compressor and burns time serious；Additionally, the easy frosting of evaporator surface, heat exchanger heat transfer
Effect deteriorates, and adds air flow resistance so that unit heating capacity reduces, hydraulic performance decline；Low temperature work
Under condition, in substantial amounts of lubricating oil accumulates in gas-liquid separator, cause the oil starvation of compressor, simultaneously because viscosity
Increase, cause startup to lose oil, reduce lubricant effect；Which also limits extensively should of air source hot pump water heater
With；
(3) delivery temperature of compressor is high, and running current is high, and system pressure height also makes compressor be in
Heavy-duty service state, shortens the service life of air source heat pump hot water system, and these all constrain air
The use of source heat pump hot-water system.
Summary of the invention
The purpose of this utility model is to overcome existing air source heat pump hot water system to use at low ambient temperatures not
Foot, it is provided that a kind of suitability is strong, the frosting that can solve to face when air source heat pump runs at low ambient temperatures is asked
Topic, the heating effect that ensure that under low temperature environment, be effectively improved unit service life and stability is strong, can
Annual use be applicable to low temperature environment and can realize the air source hot pump water heater of many operational modes.
The purpose of this utility model realizes by the following technical solutions: this can realize many operational modes
Air source hot pump water heater, it includes that interconnective air source heat pump system, water circulation system and salt are molten
Fluid circulation.
Concrete, described air source heat pump system includes the Auto-cascade cycle being sequentially connected in series into a coolant closed-loop path
With compressor, the condensation rectifying column of bottom band pipe heat exchanger, high boiling point throttling valve, condenser/evaporator,
Low boiling working fluid choke valve, low-temperature level evaporator without frost；Also include the condensation essence with bottom band pipe heat exchanger
Evaporate tower be sequentially connected in series into the high-temperature level compressor of a closed-loop path, high-temperature level condenser, high-temperature level choke valve,
High-temperature level evaporating heat exchanger；Described salt solution recirculation system includes and the condensation rectification of bottom band pipe heat exchanger
Pipe heat exchanger in tower is sequentially connected in series into the solution pump of a closed-loop path, low-temperature level evaporator without frost；Institute
State water circulation system and include that storage tank, storage tank are provided with cold water water inlet end and hot water effluent's user side, water storage
Case is also by the helix tube type in the condensation distillator of water circulating pump, electromagnetic valve and bottom band pipe heat exchanger
Heat exchanger and high-temperature level condenser two water-circulating closed circuit in parallel of composition.
Concrete, described low-temperature level evaporator without frost is sleeve pipe and fin composite construction heat exchanger, sleeve pipe outer tube
Interior working medium is saline solution, and the working medium in sleeve pipe inner tube is low boiling point refrigerant.
Concrete, the condensation distillation column of described bottom band pipe heat exchanger, in its bottom pipe heat exchanger pipe
Saline solution is connected with the outer tube of described low-temperature level evaporator without frost, then molten with described salt solution recirculation system
Liquid pump connects one closed-loop path of composition；When needs defrost, solution pump is opened, when need not defrosting,
Solution pump cuts out.
This utility model realizes Auto-cascade cycle water heating, Auto-cascade cycle/high-temperature level heat by the break-make change of electromagnetic valve
Pump is coupled the conversion between water heating pattern.When outdoor environment temperature is not the lowest, system presses Auto-cascade cycle
Water heating mode operation；When outdoor temperature is the lowest, the system that system is coupled by Auto-cascade cycle and high-temperature level heat pump
Hot-water mode runs, and now, solution pump is opened, and saline solution is from the condensation rectifying column of bottom band pipe heat exchanger
Bottom draw heat, enter the outer tube of low-temperature level evaporator without frost sleeve pipe, because saline solution temperature is higher than environment
Temperature, on the one hand heated the outer tube of low-temperature level evaporator without frost sleeve pipe so that tube wall frost-free；The opposing party
Face can transfer heat to low-temperature level cold-producing medium by the inwall of sleeve pipe, improves evaporating temperature；Saline solution from
The bottom of the condensation rectifying column of bottom band pipe heat exchanger is drawn high boiling point liquid refrigerant heat and is achieved height
Boiling point liquid refrigerant supercool, further improves systematic function.
This utility model not only can produce high-temperature-hot-water in normal conditions, moreover it is possible to meets and uses at low ambient temperatures
The family requirement to hot water.This utility model simple in construction, stable performance, energy-efficient, operating temperature range
Wide, it is possible to solve evaporimeter frosting, operation that air source heat pump hot water system exists when ambient temperature is on the low side
The problem that weak effect even can not run, can meet the heat demand of user.
This utility model compared with prior art has the advantage that
(1) use air source heat pump system, with a small amount of electrical energy drive compressor, compare electric water heating system,
Fuel gas water heating system is more energy efficient, safe and environment-friendly.
(2) heat pump using Auto-cascade cycle and high-temperature level heat pump to be coupled, solves existing air source heat
Pump hot-water heating system heats the problem that temperature is the highest at low ambient temperatures, solves air source hot pump water heater simultaneously
The confinement problems used at low ambient temperatures, heating temperature range increases, and system is run more stable, expands
The range of air source heat pump hot water system.
(3) heat pump that self-cascade heat pump system, Auto-cascade cycle/high-temperature level heat pump are coupled is used, both
Between mutually switch, more preferable than traditional Cascade type heat pump system heating effect, the service life of compressor increases,
Thus be improved the service life of system.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram of this utility model embodiment.
Fig. 2 is this utility model embodiment cold-producing medium under Auto-cascade cycle operational mode, saline solution and recirculated water
Schematic flow sheet.
Fig. 3 is this utility model embodiment system under Auto-cascade cycle/high-temperature level pump coupled heat system running pattern
Cryogen, saline solution and recirculated water schematic flow sheet.
Fig. 4 is the theory structure schematic diagram of the low-temperature level evaporator without frost of this utility model embodiment.
Fig. 5 is that the theory structure of the condensation rectifying column of the bottom band pipe heat exchanger of this utility model embodiment shows
It is intended to.
Fig. 6 is the A-A sectional view of Fig. 5.
Detailed description of the invention
With embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Seeing Fig. 1, the present embodiment includes air source heat pump system, water circulation system and salt solution recirculation system.
It can be seen that air source heat pump system includes the Auto-cascade cycle compressor being sequentially connected in series into coolant closed-loop path
1, the condensation rectifying column 3 of bottom band pipe heat exchanger, high boiling point throttling valve 10, condenser/evaporator 4,
Low boiling working fluid choke valve 11, low-temperature level evaporator without frost 5；Also include with bottom band pipe heat exchanger is cold
Solidifying rectifying column 3 is sequentially connected in series into the high-temperature level compressor 2 of a closed-loop path, high-temperature level condenser 7, height
Temperature level choke valve 9, high-temperature level evaporating heat exchanger 6.
Salt solution recirculation system includes the pipe heat exchanger of the condensation rectifying column 3 with bottom band pipe heat exchanger
12 are sequentially connected in series into the solution pump 15 of closed-loop path, low-temperature level evaporator without frost 5.
Water circulation system includes that storage tank 8, storage tank 8 are provided with cold water water inlet end 801 and hot water effluent uses
Family end 802, storage tank 8 also by water circulating pump 14, water circulating pump 20, electromagnetic valve 13, electromagnetic valve 17,
Electromagnetic valve 18, electromagnetic valve 19 and the helix tube type heat exchange in the condensation rectifying column 3 of bottom band pipe heat exchanger
Device 16 and high-temperature level condenser 7 form two water-circulating closed circuit in parallel.
Seeing Fig. 4, low-temperature level evaporator without frost 5 is sleeve pipe and fin composite construction heat exchanger, sleeve pipe outer tube
Working medium in 501 is saline solution, and the working medium in sleeve pipe inner tube 502 is low boiling point refrigerant.In Fig. 4,503
Representing saline solution entrance, 504 represent saline solution outlet；505 represent refrigerant inlet, and 506 represent cold-producing medium
Outlet.
Seeing Fig. 5, Fig. 6, the condensation distillation column 3 of bottom band pipe heat exchanger, its pipe heat exchanger 12 is managed
In saline solution be connected with the outer tube 501 of low-temperature level evaporator without frost 5, then with in salt solution recirculation system
Solution pump 15 connects one closed-loop path of composition；When needs defrost, solution pump 15 is opened, when need not
During defrosting, solution pump 15 cuts out.In Fig. 5,121 represent saline solution entrance, and 122 represent saline solution outlet；
161 represent recirculated water entrance, and 162 represent circulating water outlet；301 represent the outlet of gaseous state low boiling point refrigerant,
302 represent liquid high boiling point refrigerant outlet, and 303 represent high pressure gaseous non-azeotropic refrigerant entrance.
Operation principle and the process of this utility model embodiment are as follows:
In the case of outdoor temperature is higher, use Auto-cascade cycle water heating mode operation, as in figure 2 it is shown, high
Temperature level compressor 2 is shut down, and Auto-cascade cycle compressor 1 is opened, and the two ends of electromagnetic valve 13,19 are connected, electricity
The two ends of magnet valve 17,18 are closed, and water circulating pump 14 is opened.The Auto-cascade cycle High Temperature High Pressure gas of compressor 1
State non-azeotropic refrigerant enters the condensation rectifying column 3 of bottom band pipe heat exchanger, passes through spiral tube heat exchanger
16 with recirculated water heat exchange, high boiling point cold-producing medium is condensed into high pressure liquid refrigerant, through choke valve 10 throttling be
Low-temp low-pressure gas-liquid two-phase cold-producing medium enters condenser/evaporator 4, and low boiling point refrigerant is through bottom band pipe type heat transfer
The top of the condensation rectifying column 3 of device enters condenser/evaporator 4, after abundant heat exchange, through choke valve 11 throttling is
Low-temp low-pressure gas-liquid two-phase cold-producing medium enters low-temperature level evaporator without frost 5 and is returned from overlapping compressor 1, complete
Cold-producing medium Auto-cascade cycle is become to heat circulation.
In the case of outdoor temperature is relatively low, use the water heating pattern that Auto-cascade cycle and high-temperature level heat pump are coupled
Running, as it is shown on figure 3, now, high-temperature level compressor 2 is opened with Auto-cascade cycle compressor 1 simultaneously, electricity
The two ends of magnet valve 17,18 are opened, and the two ends of electromagnetic valve 13,19 are closed, and water circulating pump 14,20 is opened.
The Auto-cascade cycle high pressure gaseous non-azeotropic refrigerant of compressor 1 enters the condensation of bottom band pipe heat exchanger
Rectifying column 3, by spiral tube heat exchanger 16 and recirculated water heat exchange, high boiling point cold-producing medium is condensed into high pressure liquid
State cold-producing medium, enters condenser/evaporator 4 through choke valve 10 throttling for low-temp low-pressure gas-liquid two-phase cold-producing medium, low
Boiling point refrigerant enters condenser/evaporator 4 through the top of the condensation rectifying column 3 of bottom band pipe heat exchanger, fills
After dividing heat exchange, enter low-temperature level vaporizer 5 through choke valve 11 throttling for low-temp low-pressure gas-liquid two-phase cold-producing medium
It is returned from overlapping compressor 1, completes Auto-cascade cycle and heat circulation；For preventing when outdoor temperature is relatively low, low
Temperature level evaporator without frost 5 surface frosting because evaporating temperature is too low, low temperature evaporator without frost 5 is designed as sleeve pipe
Formula and the finned composite heat-exchanger combined, as shown in Figure 4, outside low-temperature level frost prevention vaporizer 5 sleeve pipe
Pipe 501 working medium is saline solution, and inner tube 502 working medium is cold-producing medium.When ambient temperature is in frozen condition,
Solution pump 15 is opened, the pipe that salt-solution absorption passes through from the condensation rectifying column 3 of bottom band pipe heat exchanger
The heat of high boiling point cold-producing medium in formula heat exchanger 12 (as shown in Figure 5), temperature raise, enter low-temperature level without
The outer tube 501 of frost vaporizer 5 sleeve pipe, and transfer heat on fin, thus realize evaporator surface and exist
Frostlessization during low temperature frozen condition.When ambient temperature is in frost-free operating mode, solution pump 15 is in pass
Closed state.The high temperature and high pressure gaseous refrigerant of high-temperature level compressor 2 outlet enter high-temperature level condenser 7 with from
The recirculated water of storage tank 8 carries out heat exchange, is condensed into high pressure liquid refrigerant, by high-temperature level choke valve 9
Throttling is low-temp low-pressure gas-liquid two-phase cold-producing medium, enters back into high-temperature level evaporating heat exchanger 6 and becomes low-temp low-pressure
Gaseous refrigerant, return high-temperature level compressor 2, complete high-temperature level heat pump and heat circulation.
Claims (4)
1. the air source hot pump water heater that can realize many operational modes, it is characterised in that: it includes phase
Air source heat pump system, water circulation system and the salt solution recirculation system connected.
The air source hot pump water heater of many operational modes, its feature can be realized the most according to claim 1
It is: described air source heat pump system includes being sequentially connected in series into the Auto-cascade cycle compression of a coolant closed-loop path
Machine, the condensation rectifying column of bottom band pipe heat exchanger, high boiling point throttling valve, condenser/evaporator, low boiling
Point throttling valve, low-temperature level evaporator without frost；Also include and the condensation rectifying column of bottom band pipe heat exchanger
It is sequentially connected in series into the high-temperature level compressor of a closed-loop path, high-temperature level condenser, high-temperature level choke valve, height
Temperature level evaporating heat exchanger；Described salt solution recirculation system includes and the condensation rectifying column of bottom band pipe heat exchanger
In pipe heat exchanger be sequentially connected in series into the solution pump of a closed-loop path, low-temperature level evaporator without frost；Described
Water circulation system includes that storage tank, storage tank are provided with cold water water inlet end and hot water effluent's user side, storage tank
Change with the helix tube type in the condensation distillator of bottom band pipe heat exchanger also by water circulating pump, electromagnetic valve
Hot device and high-temperature level condenser two water-circulating closed circuit in parallel of composition.
The air source hot pump water heater of many operational modes, its feature can be realized the most according to claim 2
It is: described low-temperature level evaporator without frost is sleeve pipe and fin composite construction heat exchanger, the work in sleeve pipe outer tube
Matter is saline solution, and the working medium in sleeve pipe inner tube is low boiling point refrigerant.
The air source hot pump water heater of many operational modes, its feature can be realized the most according to claim 3
It is: the condensation distillation column of described bottom band pipe heat exchanger, the saline solution in its bottom pipe heat exchanger pipe
It is connected with the outer tube of described low-temperature level evaporator without frost, then with the solution pump in described salt solution recirculation system even
Connect one closed-loop path of composition；When needs defrost, solution pump is opened, when need not defrosting, and solution pump
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620373347.5U CN205561260U (en) | 2016-04-28 | 2016-04-28 | Can realize air -source heat bump water heater of many operational modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620373347.5U CN205561260U (en) | 2016-04-28 | 2016-04-28 | Can realize air -source heat bump water heater of many operational modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205561260U true CN205561260U (en) | 2016-09-07 |
Family
ID=56804231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620373347.5U Withdrawn - After Issue CN205561260U (en) | 2016-04-28 | 2016-04-28 | Can realize air -source heat bump water heater of many operational modes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205561260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202445A (en) * | 2017-06-27 | 2017-09-26 | 大连海洋大学 | Auto-cascading refrigeration system with cooling fractional condensation heat exchanger |
| CN112503766A (en) * | 2021-01-07 | 2021-03-16 | 马乾根 | Air source heat pump system for auxiliary heating of hot water boiler |
-
2016
- 2016-04-28 CN CN201620373347.5U patent/CN205561260U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202445A (en) * | 2017-06-27 | 2017-09-26 | 大连海洋大学 | Auto-cascading refrigeration system with cooling fractional condensation heat exchanger |
| CN107202445B (en) * | 2017-06-27 | 2022-07-15 | 大连海洋大学 | Self-cascade refrigeration system with cooling and dephlegmation heat exchanger |
| CN112503766A (en) * | 2021-01-07 | 2021-03-16 | 马乾根 | Air source heat pump system for auxiliary heating of hot water boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20190301 |