CN209279426U - Carbon dioxide heat pump system - Google Patents
Carbon dioxide heat pump system Download PDFInfo
- Publication number
- CN209279426U CN209279426U CN201822083971.3U CN201822083971U CN209279426U CN 209279426 U CN209279426 U CN 209279426U CN 201822083971 U CN201822083971 U CN 201822083971U CN 209279426 U CN209279426 U CN 209279426U
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- Prior art keywords
- outlet
- carbon dioxide
- pipeline
- heat pump
- pump system
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Abstract
The utility model discloses a kind of carbon dioxide heat pump systems, comprising: the CO2 compressor with gas outlet and gas returning port and oil circuit；Air cooler, at least there are two the pipelines that is gas-cooled for the air cooler, each air cooling pipeline is cannula structure, including centrally located CO2 pipeline and around the coolant ducts of CO2 pipeline, the CO2 pipeline is additionally provided with CO2 import and the outlet CO2, and the coolant ducts are additionally provided with refrigerating medium import and refrigerating medium outlet；Evaporator with input terminal and output end；CO2 recover；Wherein at least two air cooling pipelines of the air cooler are arranged using vertical stringing is encircled, and the CO2 import setting of each air cooling pipeline is in upper end, and the outlet CO2 setting is in lower end, and refrigerating medium import is arranged in lower end, and refrigerating medium outlet is arranged in upper end.
Description
Technical field
The utility model relates to a kind of equipment of field of heat exchange, in particular to a kind of carbon dioxide heat pump system.
Background technique
Now on the market, the CO2 air cooler in carbon dioxide heat pump system mostly uses greatly multiple pipelines to be together in parallel, head and the tail
The form arrangement to connect, by taking three pipelines as an example, as shown in Fig. 2, this air cooler occupied space is very big, leads to CO2 heat pump system
The cabin design of system needs very big, increased costs, and layout land occupation operation is limited, moreover, because air cooler is droped to the ground, it will certainly
Liquid CO 2 is set to be present in the lower curtate of air cooler, when the operation of CO2 heat pump system, the up and down motion of liquid will lead to CO2 heat pump system
Pressure of uniting increases, and is unsafe in this way.In addition, the work of the CO2 recover in present carbon dioxide heat pump system on the market
With the CO2 for being collection liquid and bring the lubricating oil in the compressor in system into.Existing CO2 recover is as shown in figure 4, include shell
Body and the cavity formed by shell, wherein the case top is provided with the air inlet being connected with cavity, and and air inlet
The distal opening of connection protrudes into the air inlet pipe in cavity, and housing central section is provided with the gas outlet being connected with cavity, the shell
Body bottom is provided with the oil outlet being connected with cavity, due to the air-breathing for the compressor connecting in CO2 heat pump system with gas outlet
Pressure is very big, and liquid CO 2 may be sucked compressor return air mouth by this gas outlet set-up mode directly from CO2 recover,
Lead to liquid hit phenomenon, is easily damaged compressor in this way.In addition, will lead to evaporator surface when CO2 temperature is too low in evaporator
Frosting reduces heat exchange efficiency.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of novel carbon dioxide heat pump systems, it is used
Technical solution be: a kind of carbon dioxide heat pump system, including have gas outlet and gas returning port and oil circuit CO2 compressor；Gas
Cooler, for the air cooler at least there are two the pipeline that is gas-cooled, each air cooling pipeline is cannula structure, including centrally located CO2 is managed
Road and the coolant ducts for surrounding CO2 pipeline, the CO2 pipeline are provided with CO2 import and the outlet CO2, the coolant ducts
It is provided with refrigerating medium import and refrigerating medium outlet；Evaporator with input terminal and output end；CO2 recover, the CO2 recycling
Device includes shell and the cavity that is formed by shell, wherein the case top is provided with the air inlet being connected with cavity, and
The distal opening being connected to air inlet protrudes into the air inlet pipe in cavity, and housing central section is provided with the outlet being connected with cavity
Mouthful, the housing bottom is provided with the oil outlet being connected with cavity, and oil outlet is connected by oil pipe with the oil circuit of compressor；
The input terminal of CO2 inlet communication in the gas outlet and air cooler of CO2 compressor, the outlet CO2 and evaporator in air cooler connects
Logical, the output end of evaporator is connected to the air inlet of CO2 recover, the gas outlet of CO2 recover and the gas returning port of CO2 compressor
Connection, it is characterised in that: at least two air cooling pipelines of the air cooler are arranged using vertical stringing is encircled, each air cooling pipeline
CO2 import setting in upper end, the outlet CO2 setting is in lower end, and refrigerating medium import setting is in lower end, and refrigerating medium outlet setting exists
Upper end.
The further technical characteristic of the utility model is:
Air cooling pipeline in the air cooler is provided with two.
Air cooling pipeline in the air cooler is provided with three.
Throttle valve is provided between the air cooler and evaporator.
The housing central section of the CO2 recover is additionally provided with carbon dioxide perfusing hole, wherein the gas outlet is also connected with
Distal opening protrudes into the escape pipe in cavity, and the distal opening position of the escape pipe is higher than the distal opening position of air inlet pipe
It sets.
The oil outlet of the CO2 recover is also connected with the oil return bend pipe protruded into cavity.
Filter and oil return electromagnetism are provided on oil pipe between the oil outlet of the CO2 recover and the oil circuit of compressor
Valve.
The shell of the CO2 recover is provided with 3 fixing legs.
The output end of the compressor passes through pipeline connection also between the input terminal of evaporator, is provided on the pipeline
Defrost solenoid valve.
The refrigerating medium is water.
The beneficial effects of the utility model are:
1, since at least two air cooling pipelines of the air cooler are using vertical stringing setting is encircled, it is empty that installation is saved in this way
Between, the cabin design space of CO2 heat pump system, save the cost can be greatly reduced；In addition, due to the CO2 of each air cooling pipeline
Import setting is in upper end, and the outlet CO2 setting is in lower end, and refrigerating medium import is arranged in lower end, and refrigerating medium outlet is arranged in upper end.
CO2 in this way enters from upper end, flows out from bottom, can make liquid CO 2 spontaneous past flows under the effect of gravity, reduction system
Pressure, and then we allow refrigerating medium from bottom enter, from upper end flow out, recycle to form convection current with CO2, refrigerating medium more outbound flows
It is hotter, keep heat transfer effect more preferable, such structure setting improves the utilization rate of heat, has saved the energy.
2, since CO2 recover gas outlet is also connected with the escape pipe that distal opening protrudes into cavity, and it is described go out
The distal opening position of tracheae is higher than the distal opening position of air inlet pipe, can prevent in this way liquid carbon dioxide be inhaled into
In the gas returning port of the compressor of gas outlet connection, and it is effectively prevent the appearance of liquid hit phenomenon, extends carbon dioxide heat pump system pressure
The service life of contracting machine.In addition, since the oil outlet is connected with the oil return bend pipe protruded into cavity, lubricating oil can be allowed in this way
Compressor is preferentially entered, impurity returns compressor in anti-locking system.In addition, now the perfusing hole of CO2 heat pump system open more in
On the pipeline of system, system run when, be usually associated with very big vibration, these vibration mostly come from compressor operation and
The circulation of CO2, the time is long, and perfusing hole position may be leaked because of vibration, is arranged on recycling shell collector now, due to
Recover utilizes stabilizer blade fixation, and such perfusing hole can be reduced to be influenced brought by vibration, and then reduces the maintenance of system
Work.
3, pass through pipeline connection, the pipe also between the input terminal of evaporator due to the output end of the CO2 compressor
Road is provided with defrosting solenoid valve.When CO2 temperature is too low in evaporator, evaporator surface frosting will lead to, reduce heat exchange phase
Rate, the solenoid valve that defrosts at this time are opened, and the part high temperature refrigerant come out from CO2 compressor exhaust outlet is made to be directly entered evaporator,
To achieve the purpose that give evaporator defrost.When evaporator surface is frostless, defrosting solenoid valve is closed, and is carried out normal CO2 and is followed
Ring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention；
Fig. 2 is existing carbon dioxide air cooler structural schematic diagram；
Fig. 3 is the structural schematic diagram of one embodiment of carbon dioxide air cooler in the utility model；
Fig. 4 is existing carbon dioxide recovery device structural schematic diagram；
Fig. 5 is the structure top view of one embodiment of carbon dioxide recovery device in the utility model；
Fig. 6 is the structure sectional view in the direction A-A in Fig. 5.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Referring to Fig.1, Fig. 3, Fig. 5, Fig. 6, an embodiment of the present invention include a kind of carbon dioxide heat pump system, including band
There is the CO2 compressor 1 of gas outlet 101 and gas returning port 102 and oil circuit；Air cooler 2, at least there are two air cooled lamps for the air cooler
Road, each air cooling pipeline are cannula structure, described including centrally located CO2 pipeline and around the coolant ducts of CO2 pipeline
CO2 pipeline is provided with CO2 import 2011 and the outlet CO2 2012, and the coolant ducts 202 are provided with 2021 He of refrigerating medium import
Refrigerating medium outlet 2022；Evaporator 3 with input terminal and output end；CO2 recover 4, the CO2 recover includes shell
401 and the cavity 402 that is formed by shell, wherein the case top is provided with the air inlet 403, Yi Jiyu being connected with cavity
The distal opening 404 of air inlet connection protrudes into the air inlet pipe 405 in cavity, and housing central section is provided with going out of being connected with cavity
Port 406, the housing bottom are provided with the oil outlet 407 being connected with cavity, and oil outlet 407 is compressed by oil pipe and CO2
The oil circuit of machine 1 is connected；The gas outlet 101 of CO2 compressor is connected to the CO2 import 2011 in air cooler, and the CO2 in air cooler goes out
Mouth 2012 is connected to the input terminal of evaporator 3, and the output end of evaporator 3 is connected to the air inlet 403 of CO2 recover, CO2 recycling
The gas outlet 406 of device is connected to the gas returning port 102 of CO2 compressor 1, wherein three air cooling pipelines of the air cooler 2 use ring
Vertical stringing setting is embraced, in upper end, the outlet CO2 2012 is arranged in lower end, and carries for the setting of CO2 import 2011 of each air cooling pipeline
The setting of cryogen import 2021 is arranged in lower end, refrigerating medium outlet 2022 in upper end.
In the present embodiment, throttle valve 6 is provided between the air cooler and evaporator.The main function of throttle valve is to make
Flow section sudden contraction when the CO2 come out from air cooler 2 flows through throttle valve, fluid flow rate are accelerated, pressure decline, CO2 temperature
It reduces, is evaporated when CO2 enters evaporator, fully absorbs the heat in environment.
In the present embodiment, the housing central section of the CO2 recover is additionally provided with carbon dioxide perfusing hole 409, wherein institute
It states gas outlet 406 and is also connected with the escape pipe 411 that distal opening protrudes into cavity, and the distal opening position of the escape pipe is wanted
Higher than 404 position of distal opening of air inlet pipe.The oil outlet 407 of the CO2 recover is also connected with the oil return protruded into cavity
Bend pipe 408.Filter 9 and oil return electricity are provided on oil pipe between the oil outlet of the CO2 recover and the oil circuit of compressor
Magnet valve 8.The shell 401 of the CO2 recover 4 is provided with 3 fixing legs 410.
In addition in the embodiment shown in fig. 1, the gas outlet 101 of the CO2 compressor also and evaporator 3 input terminal it
Between by pipeline connection, defrosting solenoid valve 7 is provided on the pipeline.
In practical applications, the refrigerating medium is mostly water, the tap water in the refrigerating medium import and life of usual air cooler
The refrigerating medium outlet of pipeline connection, air cooler provides hot water, can be delivered to such as kitchen and bath using terminal of needs.
The working principle of the utility model is: CO2 compressor inputs the CO2 of high temperature and pressure in air cooler, high temperature and pressure
CO2 can with refrigerating medium carry out heat exchange, so that the heat of refrigerating medium is increased, reduce the heat of CO2, then pass through throttle valve,
Evaporate CO2 in evaporator, released cold quantity, evaporator top would generally be equipped with blower, and the main function of blower be to assist to steam
Device is sent out, cooling capacity is discharged in air；CO2, into CO2 recover, then returns compressor after evaporating in evaporator
Gas returning port, complete heating circulation.
It is all according to equivalent change made by the present utility model application the foregoing is merely the better embodiment of the utility model
With modification, it should all belong to the covering scope of the utility model patent, the protection scope of the utility model is subject to claims.
Claims (10)
1. a kind of carbon dioxide heat pump system, comprising:
CO2 compressor with gas outlet and gas returning port and oil circuit；
Air cooler, for the air cooler at least there are two the pipeline that is gas-cooled, each air cooling pipeline is cannula structure, including centrally located
CO2 pipeline and the coolant ducts for surrounding CO2 pipeline, the CO2 pipeline are additionally provided with CO2 import and the outlet CO2, the refrigerating
Agent pipeline is additionally provided with refrigerating medium import and refrigerating medium outlet；
Evaporator with input terminal and output end；
CO2 recover, the CO2 recover includes shell and the cavity that is formed by shell, wherein the case top is provided with
The air inlet being connected with cavity, and the distal opening that is connected to air inlet protrude into the air inlet pipe in cavity, and housing central section is set
It is equipped with the gas outlet being connected with cavity, the housing bottom is provided with the oil outlet being connected with cavity, and oil outlet passes through oil
Pipe is connected with the oil circuit of compressor；
CO2 inlet communication in the gas outlet and air cooler of CO2 compressor, the input of CO2 outlet and evaporator in air cooler
End connection, the output end of evaporator are connected to the air inlet of CO2 recover, the gas outlet of CO2 recover and returning for CO2 compressor
Port connection；
It is characterized by: at least two air cooling pipelines of the air cooler are arranged using vertical stringing is encircled, each air cooling pipeline
CO2 import setting in upper end, the outlet CO2 setting is in lower end, and refrigerating medium import setting is in lower end, and refrigerating medium outlet setting exists
Upper end.
2. carbon dioxide heat pump system as described in claim 1, it is characterised in that: the air cooling pipeline setting in the air cooler
There are two.
3. carbon dioxide heat pump system as described in claim 1, it is characterised in that: the air cooling pipeline setting in the air cooler
There are three.
4. carbon dioxide heat pump system as described in claim 1, it is characterised in that: be arranged between the air cooler and evaporator
There is throttle valve.
5. carbon dioxide heat pump system as described in claim 1, it is characterised in that: the housing central section of the CO2 recover is also
It is provided with carbon dioxide perfusing hole, wherein the gas outlet is also connected with the escape pipe that distal opening protrudes into cavity, and described
The distal opening position of escape pipe is higher than the distal opening position of air inlet pipe.
6. carbon dioxide heat pump system as described in claim 1, it is characterised in that: the oil outlet of the CO2 recover also connects
It is connected to the oil return bend pipe protruded into cavity.
7. carbon dioxide heat pump system as described in claim 1, it is characterised in that: the oil outlet and pressure of the CO2 recover
Filter and oil return solenoid valve are provided on oil pipe between the oil circuit of contracting machine.
8. carbon dioxide heat pump system as described in claim 1, it is characterised in that: the shell of the CO2 recover is provided with 3
A fixing leg.
9. the carbon dioxide heat pump system as described in any claim in claim 1 to claim 8, it is characterised in that:
Pass through pipeline connection between the exhaust outlet of the CO2 compressor and the input terminal of evaporator, defrosting electricity is provided on the pipeline
Magnet valve.
10. carbon dioxide heat pump system as claimed in claim 9, it is characterised in that: the refrigerating medium is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822083971.3U CN209279426U (en) | 2018-12-12 | 2018-12-12 | Carbon dioxide heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822083971.3U CN209279426U (en) | 2018-12-12 | 2018-12-12 | Carbon dioxide heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209279426U true CN209279426U (en) | 2019-08-20 |
Family
ID=67611064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822083971.3U Expired - Fee Related CN209279426U (en) | 2018-12-12 | 2018-12-12 | Carbon dioxide heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209279426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306825A (en) * | 2018-12-12 | 2020-06-19 | 青岛贺力德低温科技有限公司 | Carbon dioxide heat pump system |
-
2018
- 2018-12-12 CN CN201822083971.3U patent/CN209279426U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306825A (en) * | 2018-12-12 | 2020-06-19 | 青岛贺力德低温科技有限公司 | Carbon dioxide heat pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 Termination date: 20211212 |