CN205807620U - A kind of circulating water heating system based on carbon dioxide heat-pump - Google Patents
A kind of circulating water heating system based on carbon dioxide heat-pump Download PDFInfo
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- CN205807620U CN205807620U CN201620492667.2U CN201620492667U CN205807620U CN 205807620 U CN205807620 U CN 205807620U CN 201620492667 U CN201620492667 U CN 201620492667U CN 205807620 U CN205807620 U CN 205807620U
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- heat
- heat exchanger
- carbon dioxide
- gas
- water
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Abstract
This utility model relates to heating system technical field, specifically disclose a kind of circulating water heating system based on carbon dioxide heat-pump, including the carbon dioxide trans-critical cycle system heated by compressor with by the water circulation system of Heat supply and heat exchange device outward supplying heat, utilize recirculated water that the low temperature reflux carbon dioxide in heat pump is heated, especially the carbon dioxide in gas-liquid separator is heated, improve and maintain gas-liquid separator internal gas pressure, ensure that heat pump compressor maintains high compression efficiency, improve heating efficiency, save the energy.
Description
Technical field
This utility model relates to heating system technical field, especially relates to carbon dioxide heat-pump technical field.
Background technology
Carbon dioxide heat pump system realizes heat supply using carbon dioxide as heat pump fluid trans critical cycle.General by compressing
Machine, condenser, throttling arrangement and the big parts of vaporizer four are constituted, according to concrete usefulness, it is also possible to be provided with gas-liquid separator, automatically
Controller etc..In circulating water heating technical field, high-temperature water heats recirculation through thermal source after adopting heat drop temperature, in actual application,
Adopting the low-temperature return water temperature after heat and be generally greater than 30 DEG C, such as floor heating heat supply backwater, it enters condenser and High Temperature High Pressure dioxy
Change carbon heat exchange, carbon dioxide heat pump system efficiency can be made to be substantially reduced, even cause the carbon dioxide heat pump system cannot be normal
Use.
Meanwhile, at cold district, air themperature is low, and the vaporizer in carbon dioxide heat pump system is under outdoor low temperature environment
Work efficiency is extremely low, and in heat pump, low temperature reflux carbon dioxide can not effectively gasify, and after entering compressor, causes compressor pressure
Contracting efficiency reduces.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of circulating water heating system based on carbon dioxide heat-pump,
Low-temperature carbon dioxide in carbon dioxide heat pump system is heated by the waste heat utilizing circulating backwater, has both improved the evaporation of carbon dioxide
Efficiency, reduces again the temperature of circulating backwater, energy-conserving and environment-protective, it is ensured that high heating efficiency.
For solving above-mentioned technical problem, technical solution adopted in the utility model is: a kind of based on carbon dioxide heat-pump
Circulating water heating system, including the carbon dioxide trans-critical cycle system heated by compressor and outwards supply with Heat supply and heat exchange device
The water circulation system of heat, described carbon dioxide trans-critical cycle system and water circulation system realize heat exchange by heat exchanger,
Described heat exchanger is two, the respectively first heat exchanger and the second heat exchanger, the high-temperature water of described second heat exchanger
Outlet and the water at low temperature inlet communication of described first heat exchanger, the heating agent outlet of described first heat exchanger and described second heat
The coolant inlet communication of exchanger, described compressor is located at the refrigerant exit of described second heat exchanger and described first heat exchange
Between the Heating medium of device, after the low-temperature carbon dioxide that the second heat exchanger flows out being heated, become high temperature carbon dioxide send
Entering the first heat exchanger, described Heat supply and heat exchange device is located at the water at low temperature outlet of described first heat exchanger and described second heat exchange
Between the high-temperature water import of device, after the high temperature hydromining heat flowed out by the first heat exchanger, become water at low temperature send into the second heat friendship
Parallel operation.
Described Heat supply and heat exchange device is floor heating heating pipe, and described floor heating heating pipe is connected on following of described water circulation system
On ring waterpipe.
Compressor that described carbon dioxide trans-critical cycle system includes being sequentially communicated, the first heat exchanger, throttling arrangement,
Vaporizer, the second heat exchanger, described second heat exchanger is dividing wall type heat exchanger, including gas-liquid separator be located at gas-liquid and divide
Sandwich plate on device outer wall, described sandwich plate constitutes interlayer with gas-liquid separator outer wall, and described interlayer is provided with water inlet and goes out
The mouth of a river, the high-temperature water import respectively as described second heat exchanger exports with high-temperature water；Described gas-liquid separator includes tank body
And the gas-liquid two-phase import, the gas outlet that offer on tank body and be positioned at the oil return opening of described tank base, described gas-liquid two-phase
Import and gas outlet are respectively as the coolant import of described second heat exchanger and refrigerant exit；Described oil return opening and described pressure
The oil communication of contracting machine.
Described interlayer is annular, around described tank body.
Described gas-liquid two-phase import is positioned at described tank body top, is provided with baffling in described tank body below gas-liquid two-phase import
Plate, is additionally provided with the gas pipeline connected with described gas outlet in described tank body, the air inlet of described gas pipeline is positioned at described
Below deflection plate.
Described tank body is made up of cylinder, upper cover and lower cover airtight connection, and described interlayer is positioned on described cylinder and near upper
Lid.
Use and have the beneficial effects that produced by technique scheme: this utility model circulation based on carbon dioxide heat-pump
Water heating system is additionally arranged the second heat exchanger on the basis of existing technology, utilizes the waste heat of circulating backwater to carbon dioxide heat
Low-temperature carbon dioxide heating in pumping system, to improve the evaporation efficiency of carbon dioxide, and then ensures the compression that compressor is stable
Efficiency, can reduce again the temperature of circulating backwater simultaneously, make heat energy make full use of, it is ensured that occur to continue in the first heat exchanger
The heat exchange of stability and high efficiency rate, makes whole heating system the most energy-conservation stable, has high heating efficiency.
Accompanying drawing explanation
Fig. 1 is the principle schematic of this utility model system；
Fig. 2 is the schematic diagram of a kind of embodiment of this utility model；
Fig. 3 is the structural representation of the second heat exchanger in Fig. 2.
Wherein, 1, compressor；2, Heat supply and heat exchange device；3, the first heat exchanger；4, the second heat exchanger；5, throttling arrangement；
6, vaporizer；7, water pump；41, gas-liquid two-phase import；42, relief valve port；43, sandwich plate；44, oil return opening；45, water inlet；46、
Outlet；47, gas outlet；48, deflection plate；49, gas pipeline.
Detailed description of the invention
In order to solve circulating water heating system based on carbon dioxide heat-pump in low-temperature cold regional systems efficiency low, heat pump
The problem of systematic function difference, the utility model discloses a kind of circulating water heating system based on carbon dioxide heat-pump, it is possible to profit
With recirculated water, the low temperature reflux carbon dioxide in heat pump is heated, especially the carbon dioxide in gas-liquid separator is added
Heat, improves and maintains gas-liquid separator internal gas pressure, ensures that heat pump compressor maintains high compression efficiency, improves heating efficiency,
Save the energy.
In order to clearly describe this utility model, below in conjunction with the accompanying drawings with specific embodiment to this utility model
It is described in further detail.
Embodiment
A kind of circulating water heating system based on carbon dioxide heat-pump, is shown in that Fig. 1 and Fig. 2 (eliminates each control valve in Fig. 2
Body), circulate including the carbon dioxide trans-critical cycle system heated by compressor 1 with the water of Heat supply and heat exchange device 2 outward supplying heat
System, carbon dioxide trans-critical cycle system and water circulation system realize heat exchange by heat exchanger, and heat exchanger is two,
It is respectively the first heat exchanger 3 and the second heat exchanger 4, high-temperature water outlet and first heat exchanger 3 of the second heat exchanger 4
Water at low temperature inlet communication, the heating agent outlet of the first heat exchanger 3 and the coolant inlet communication of the second heat exchanger 4, compressor 1 sets
Between the refrigerant exit and the Heating medium of the first heat exchanger 3 of the second heat exchanger 4, for the second heat exchanger 4 is flowed
The low-temperature carbon dioxide gone out becomes high temperature carbon dioxide and sends into the first heat exchanger 3 after heating, the first heat is located at by Heat supply and heat exchange device 2
Between water at low temperature outlet and the high-temperature water import of the second heat exchanger 4 of exchanger 3, for what the first heat exchanger 3 was flowed out
Become water at low temperature after high temperature hydromining heat and send into the second heat exchanger 4.The condenser that first heat exchanger 3 is in heat pump,
For cooling down compressing prepared High Temperature High Pressure carbon dioxide through compressor 1, the heat of its release is to cold cycle backwater
Heating.
Heat supply and heat exchange device 2 is floor heating heating pipe, and floor heating heating pipe be connected on the circulating water pipeline of water circulation system.
Water circulation system is provided with water pump 7 at reflux section and provides power for water circulation.
Compressor the 1, first heat exchanger 3 that carbon dioxide trans-critical cycle system includes being sequentially communicated, throttling arrangement 5,
Vaporizer the 6, second heat exchanger 4, is shown in Fig. 2 and Fig. 3, and the second heat exchanger 4 is dividing wall type heat exchanger, including gas-liquid separator and
The sandwich plate 43 being located on gas-liquid separator outer wall, sandwich plate 43 constitutes interlayer with gas-liquid separator outer wall, and interlayer is provided with into water
Mouth 45 and outlet 46, the high-temperature water import respectively as the second heat exchanger 4 exports with high-temperature water；Gas-liquid separator includes tank
The gas-liquid two-phase import 41 offered on body and tank body, gas outlet 47 and be positioned at the oil return opening 44 of tank base, gas-liquid two-phase
Import 41 and gas outlet 47 are respectively as the coolant import of the second heat exchanger 4 and refrigerant exit；Oil return opening 44 and compressor 1
Oil communication.
Low-temperature carbon dioxide enters vaporizer 6 and gasifies, and the carbon dioxide gas-liquid mixture of generation enters gas-liquid separator storage
Depositing, the lubricating oil of Partial shrinkage machine 1 flows out compressor 1 as well as CO 2 fluid simultaneously, enters gas-liquid separator, gasification
Carbon dioxide enter the compressed intensification of compressor 1 by gas outlet 47, be re-used for taking heat.Lubricating oil density is higher than dioxy
Change carbon, be deposited on bottom gas-liquid separator, periodically reclaim, return compressor 1 oil piping system.Gas-liquid separator planted agent keeps certain
Air pressure range, stable to ensure compressor 1 air demand, prevent compressor 1 from damaging or inefficient.
In prior art, gas-liquid separator mostly occurs frost, and low temp area needs outside gas-liquid separator storage tank
If heat tape, keeping continuous heating, power consumption is big, and needs single control system, increases heat pump operating cost.Application
Second heat exchanger 4 in the present embodiment, it is only necessary to be electrically heated band auxiliary heating, properly functioning shape when heat pump is started shooting
State can close heat tape, only utilizes circulating backwater, more energy-conserving and environment-protective.
For the further improvement of the second heat exchanger 4, seeing Fig. 3, it is the vertical section structure of the second heat exchanger 4, folder
Layer is annular, around tank body.Gas-liquid two-phase import 41 is positioned at tank body top, is provided with folding in tank body below gas-liquid two-phase import 41
Stream plate 48, is additionally provided with the gas pipeline 49 connected with gas outlet 47 in tank body, the air inlet of gas pipeline 49 is positioned at deflection plate
Below 48.Tank body is made up of cylinder, upper cover and lower cover airtight connection, and interlayer is positioned on cylinder and near upper cover.Gas-liquid two-phase enters
Mouthfuls 41 are located at and cover, simultaneously on cover and be additionally provided with relief valve port 42, be used for arranging relief valve, prevent that air pressure is too high produces danger
Danger.
Deflection plate 48 makes the gas phase in entrance tank body and liquid phase realize heat exchange further, makes liquid phase vaporize, and improves tank body
Interior vapor liquid heat exchange efficiency.Deflection plate 48 is set to arc and gas below is had the effect of gathering, beneficially carbon dioxide
It is passed through the air inlet of gas pipeline 49.Interlayer is positioned at cylinder top near upper cover, defines the position of interlayer, it is possible to conservative control
Heating surface (area) (HS, the beneficially control of gas-liquid separator internal gas pressure, avoid simultaneously directly to be deposited on cylinder bottom or under cover
Lubricating oil heats, and effectively realizes lubrication oil separating.
Above this utility model is described in detail, this utility model is applied specific case to of the present utility model
Embodiment is set forth, and the explanation of above example is only intended to help and understands this utility model, it is noted that for this
For those skilled in the art, on the premise of without departing from this utility model principle, if also this utility model can be carried out
Dry improvement, these improvement also fall in this utility model scope of the claims.
Claims (5)
1. a circulating water heating system based on carbon dioxide heat-pump, faces including the CO 2 cross heated by compressor (1)
Boundary's blood circulation and the water circulation system with Heat supply and heat exchange device (2) outward supplying heat, described carbon dioxide trans-critical cycle system and
Water circulation system realizes heat exchange by heat exchanger, it is characterised in that described heat exchanger is two, and the respectively first heat is handed over
Parallel operation (3) and the second heat exchanger (4), high-temperature water outlet and described first heat exchanger (3) of described second heat exchanger (4)
Water at low temperature inlet communication, heating agent outlet and the coolant import of described second heat exchanger (4) of described first heat exchanger (3)
Connection, described compressor (1) is located at the refrigerant exit of described second heat exchanger (4) and the heat of described first heat exchanger (3)
Between matchmaker's import, after the low-temperature carbon dioxide that the second heat exchanger (4) flows out being heated, become high temperature carbon dioxide send into
First heat exchanger (3), described Heat supply and heat exchange device (2) is located at the water at low temperature outlet and described the of described first heat exchanger (3)
Between the high-temperature water import of two heat exchangers (4), after the high temperature hydromining heat flowed out by the first heat exchanger (3), become low temperature
Water sends into the second heat exchanger (4)；
Described carbon dioxide trans-critical cycle system includes that the compressor (1) being sequentially communicated, the first heat exchanger (3), throttling fill
Putting (5), vaporizer (6), the second heat exchanger (4), described second heat exchanger (4) is dividing wall type heat exchanger, divides including gas-liquid
From device and the sandwich plate (43) being located on gas-liquid separator outer wall, described sandwich plate (43) constitutes folder with gas-liquid separator outer wall
Layer, described interlayer is provided with water inlet (45) and outlet (46), respectively as the high-temperature water import of described second heat exchanger (4)
Export with high-temperature water；Described gas-liquid separator includes gas-liquid two-phase import (41), the gas outlet offered on tank body and tank body
(47) and be positioned at the oil return opening (44) of described tank base, described gas-liquid two-phase import (41) and gas outlet (47) respectively as
The coolant import of described second heat exchanger (4) and refrigerant exit；Described oil return opening (44) connects with the oil circuit of described compressor (1)
Logical.
A kind of circulating water heating system based on carbon dioxide heat-pump the most according to claim 1, it is characterised in that described
Heat supply and heat exchange device (2) is floor heating heating pipe, and described floor heating heating pipe is connected on the circulating water pipeline of described water circulation system
On.
A kind of circulating water heating system based on carbon dioxide heat-pump the most according to claim 1, it is characterised in that described
Interlayer is annular, around described tank body.
A kind of circulating water heating system based on carbon dioxide heat-pump the most according to claim 1, it is characterised in that described
Gas-liquid two-phase import (41) is positioned at described tank body top, is provided with deflection plate in gas-liquid two-phase import (41) lower section in described tank body
(48), the gas pipeline (49) connected with described gas outlet (47) in described tank body, it is additionally provided with, described gas pipeline (49)
Air inlet is positioned at described deflection plate (48) lower section.
A kind of circulating water heating system based on carbon dioxide heat-pump the most according to claim 1, it is characterised in that described
Tank body is made up of cylinder, upper cover and lower cover airtight connection, and described interlayer is positioned on described cylinder and near upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620492667.2U CN205807620U (en) | 2016-05-27 | 2016-05-27 | A kind of circulating water heating system based on carbon dioxide heat-pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620492667.2U CN205807620U (en) | 2016-05-27 | 2016-05-27 | A kind of circulating water heating system based on carbon dioxide heat-pump |
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| Publication Number | Publication Date |
|---|---|
| CN205807620U true CN205807620U (en) | 2016-12-14 |
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ID=57499678
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620492667.2U Expired - Fee Related CN205807620U (en) | 2016-05-27 | 2016-05-27 | A kind of circulating water heating system based on carbon dioxide heat-pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839711A (en) * | 2017-01-23 | 2017-06-13 | 广州能之原科技股份有限公司 | A kind of tunnel type wood single-plate drying process |
-
2016
- 2016-05-27 CN CN201620492667.2U patent/CN205807620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839711A (en) * | 2017-01-23 | 2017-06-13 | 广州能之原科技股份有限公司 | A kind of tunnel type wood single-plate drying process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20210527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |