CN208736052U - It is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide - Google Patents
It is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide Download PDFInfo
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- CN208736052U CN208736052U CN201821172710.2U CN201821172710U CN208736052U CN 208736052 U CN208736052 U CN 208736052U CN 201821172710 U CN201821172710 U CN 201821172710U CN 208736052 U CN208736052 U CN 208736052U
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Abstract
The utility model discloses it is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide, including refrigerant-cycle systems, water system and air dryer systems, and can realize precisely energy supply according to hot water and dry demand adjusting refrigerant flow rate.Wherein: refrigerant-cycle systems carry out the circulation air in progressive solution and air dryer systems for the water to water system and heat；Water system, the water for flowing into outside are conveyed to refrigerant-cycle systems and carry out progressive solution, and store the water after heating；Air dryer systems are used to form the air circulated, and by the circulation air after refrigerant-cycle systems heat treatment, are dried to material to be dried, realize the intermittently drying of different drying boxes.The delivery temperature of system inner compressor, the supply of Lai Shixian hot water and dry materials can be effectively utilized in the utility model, realize the reasonable cascade utilization of heat.
Description
Technical field
The utility model relates to heat pump drying technology field, more particularly to it is a kind of can supplying hot water carbon dioxide heat-pump it is dry
Drying system.
Background technique
Currently, Analysis of Heat Pump Drying System can be divided into closed system, semi-open type system, open system by structure, wherein enclosed system
System can efficiently use condensation latent heat in exhaust gas thus efficiency it is higher.But set in traditional closed system there are two condenser,
One is used for temperature rise period heat drying medium, and one is used to avoid dried medium temperature excessively high, this partial heat is often discharged into
In atmosphere, to bring energy waste.
For carbon dioxide heat pump system (i.e. using carbon dioxide as the heat pump system of refrigerant), the row of inner compressor
Temperature degree is high (the refrigerant gas temperature being discharged is high), can be used to produce hot water and provide higher drying temperature.
But there is presently no a kind of devices, and the row of carbon dioxide heat pump system inner compressor can be effectively utilized
Temperature degree, the supply of Lai Shixian hot water and dry materials, avoid the valuable wasting of resources, save the economic expenditure of user.
Utility model content
In view of this, the purpose of the utility model is to provide it is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide,
The delivery temperature of system inner compressor, the supply of Lai Shixian hot water and dry materials can be effectively utilized, avoid valuable resource
Waste, saves the economic expenditure of user, is of great practical significance.
For this purpose, the utility model provide it is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide, including refrigerant follows
Loop system, water system and air dryer systems, and can be according to hot water and dry demand come adjusting refrigerant flow rate, in which:
Refrigerant-cycle systems carry out following in progressive solution and air dryer systems for the water to water system
Annular space gas is heated；
Water system, the water for flowing into outside is conveyed to refrigerant-cycle systems and carries out progressive solution, and stores and add
Water after heat；
Air dryer systems are used to form the air circulated, and will be after refrigerant-cycle systems heat treatment
Circulation air, material to be dried is dried, realizes the intermittently drying of different drying boxes.
Wherein, the refrigerant-cycle systems include compressor, it is level-one water-cooling cooler, two-stage water-cooling cooler, air-cooled
Cooler, expansion valve and evaporator, in which:
The refrigerant outlet of the compressor is connected with the refrigerant inlet of level-one water-cooling cooler；
The refrigerant outlet of the level-one water-cooling cooler respectively with the refrigerant inlet of two-stage water-cooling cooler and air-cooled
The refrigerant inlet of cooler is connected；
After the refrigerant outlet of the refrigerant outlet of the two-stage water-cooling cooler and air-cooled cooler confluence with expansion valve
Refrigerant inlet be connected；
The refrigerant outlet of the expansion valve is connected with the refrigerant inlet of evaporator；
The refrigerant outlet of the evaporator is connected with the refrigerant inlet of compressor.
Wherein, it is set on the connecting line between the refrigerant outlet and two-stage water-cooling cooler of the level-one water-cooling cooler
It is equipped with the first refrigerant flow regulating valve；
Second is provided on connecting line between the refrigerant outlet and air-cooled cooler of the level-one water-cooling cooler
Refrigerant flow regulating valve.
Wherein, the water system includes boiler and Water flow adjusting valve, in which:
One end of the Water flow adjusting valve is connected with external water source, the other end and second level of the Water flow adjusting valve
The water inlet of water-cooling cooler is connected；
The water outlet of the two-stage water-cooling cooler is connected with the water inlet of level-one water-cooling cooler；
The water outlet of the level-one water-cooling cooler is connected with the water inlet of boiler.
Wherein, one end of the Water flow adjusting valve is connected by water pump with external water source.
Wherein, the air dryer systems include level-one drying box, secondary drying case and vacuum pump, in which:
The air outlet slit of the air-cooled cooler air inlet with the air inlet of level-one drying box and secondary drying case respectively
It is connected；
Air intlet phase after the air outlet of the level-one drying box and the air outlet confluence of secondary drying case with evaporator
Connection；
The air outlet slit of the evaporator is connected with the air intlet of air-cooled cooler；
The air intlet of the vacuum pump is taken out with the air of the air outlet port of level-one drying box and secondary drying case respectively
Outlet is connected；
The air outlet slit of the vacuum pump is pumped into mouth with the air of level-one drying box respectively and the air of secondary drying case is taken out
Entrance is connected.
Wherein, it is arranged on the connecting line between the air outlet slit of the air-cooled cooler and the air inlet of level-one drying box
There is the first air-valve；
Is provided on connecting line between the air outlet slit of the air-cooled cooler and the air inlet of secondary drying case
Two air-valves.
Wherein, it is arranged on the connecting line between the air intlet of the vacuum pump and the air outlet port of level-one drying box
There is third air-valve；
Is provided on connecting line between the air intlet of the vacuum pump and the air outlet port of secondary drying case
Four air-valves；
The air of the air outlet slit of the vacuum pump and level-one drying box, which is pumped on the connecting line between mouth, is provided with the
Five air-valves；
The air of the air outlet slit of the vacuum pump and secondary drying case, which is pumped on the connecting line between mouth, is provided with the
Six air-valves.
Wherein, the 7th air-valve is provided on the air outlet of the level-one drying box, on the air outlet of the secondary drying case
It is provided with Bafeng valve.
By the above technical solution provided by the utility model as it can be seen that compared with prior art, the utility model provides
It is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide, the delivery temperature of system inner compressor can be effectively utilized, come
It realizes hot water supply and dry materials, avoids the valuable wasting of resources, save the economic expenditure of user, it is real with great production
Trample meaning.
Detailed description of the invention
Fig. 1 be one kind provided by the utility model can supplying hot water Heat Pump Drying System with Carbon Dioxide structural schematic diagram；
In figure, 1 is compressor, and 2 be level-one water-cooling cooler, and 3 be two-stage water-cooling cooler, and 4 be air-cooled cooler, and 5 are
Expansion valve, 6 be evaporator, and 7 be boiler, and 8 be level-one drying box, and 9 be secondary drying case, and 10 are adjusted for the first refrigerant flow
Valve, 11 be Water flow adjusting valve, and 12 be second refrigerant flow control valve, and 13 be vacuum pump；
14 be the first air-valve, and 15 be the second air-valve, and 16 be third air-valve, and 17 be the 4th air-valve, and 18 be the 5th air-valve, and 19 are
6th air-valve, 20 be the 7th air-valve, and 21 be Bafeng valve.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and embodiment
The utility model is described in further detail.
Referring to Fig. 1, the utility model provide it is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide, including refrigerant
The circulatory system, water system and air dryer systems, and can be realized accurate according to hot water and dry demand adjusting refrigerant flow rate
Energy supply, in which:
Refrigerant-cycle systems carry out progressive solution (particular by level-one cooling by water for the water to water system
Device 2 and two-stage water-cooling cooler 3) and air dryer systems in circulation air heated；Detailed process are as follows: high temperature row
Gas first heats the water (particular by level-one water-cooling cooler 2) after preheating, and subsequent refrigerant divides two-way, is used for all the way
The water of water system is preheated (particular by two-stage water-cooling cooler 3), another way is to following in air dryer systems
Annular space gas is heated；
Water system, the water for flowing into outside is conveyed to refrigerant-cycle systems and carries out progressive solution, and stores and add
Water after heat；
Air dryer systems are used to form the air circulated, and will be after refrigerant-cycle systems heat treatment
Circulation air, material to be dried is dried, realizes the intermittently drying of different drying boxes.
It is by refrigerant (such as carbon dioxide CO it should be noted that for refrigerant-cycle systems2) circulation
It utilizes, by the compression of refrigerant, cooling, expansion and evaporation, to realize the heating operation to outside air and water, to realize
Energy transfer.
In the present invention, the refrigerant-cycle systems include compressor 1, level-one water-cooling cooler 2, two-stage water-cooling
Cooler 3, air-cooled cooler 4, expansion valve 5 and evaporator 6, in which:
The refrigerant outlet of the compressor 1 is connected with the refrigerant inlet of level-one water-cooling cooler 2；
The refrigerant outlet of the level-one water-cooling cooler 2 respectively with the refrigerant inlet and wind of two-stage water-cooling cooler 3
The refrigerant inlet of cold cooler 4 is connected；That is, the refrigerant outlet of level-one water-cooling cooler 2 passes through two outputs
Branch is connected with two-stage water-cooling cooler 3 and air-cooled cooler 4 respectively；
After the refrigerant outlet of the refrigerant outlet of the two-stage water-cooling cooler 3 and air-cooled cooler 4 confluence with expansion
The refrigerant inlet of valve 5 is connected；
The refrigerant outlet of the expansion valve 5 is connected with the refrigerant inlet of evaporator 6；
The refrigerant outlet of the evaporator 6 is connected with the refrigerant inlet of compressor 1.
Therefore, based on the above structure it is found that the utility model realizes recycling for refrigerant.
In specific implementation, the compressor 1 is carbon-dioxide gas compressor, i.e., using carbon dioxide as the compressor of refrigerant.
Connection in specific implementation, between the refrigerant outlet and two-stage water-cooling cooler 3 of the level-one water-cooling cooler 2
The first refrigerant flow regulating valve 10 is provided on pipeline；
Is provided on connecting line between the refrigerant outlet and air-cooled cooler 4 of the level-one water-cooling cooler 2
Two refrigerant flow regulating valves 12.
Therefore, it by the first refrigerant flow regulating valve 10 and second refrigerant flow control valve 12, may be implemented corresponding
The adjusting of refrigerant flow on pipeline.
In the present invention, the water system includes boiler 7 and Water flow adjusting valve 11, in which:
One end of the Water flow adjusting valve 11 is connected with external water source, the other end of the Water flow adjusting valve 11 with
The water inlet of two-stage water-cooling cooler 3 is connected；
The water outlet of the two-stage water-cooling cooler 3 is connected with the water inlet of level-one water-cooling cooler 2；
The water outlet of the level-one water-cooling cooler 2 is connected with the water inlet of boiler 7.
In specific implementation, one end of the Water flow adjusting valve 11 is connected by water pump with external water source.
In specific implementation, the external water source can be external pure water container, or be equipped with pure water filtering
The external water supply pipe of device.That is, preferably passing through processed water.
It should be noted that boiler 7 is for storing after level-one water-cooling cooler 2, two-stage water-cooling cooler 3 heat
Water, and user is allowed to use.And by regulating water flow regulating valve 11, it is adjustable to be flowed into level-one water-cooling cooler 2, second level
The flow of water in water-cooling cooler 3 meets user and wants so that adjusting the water temperature of the water outlet of level-one water-cooling cooler 2
Particular water temperature.
For the utility model, the delivery temperature of compressor 1 is high, enables to first pre- by level-one water-cooling cooler 2
Water temperature after heat is higher, to be separated into two-way after the delivery temperature decline of compressor 1, is for heating to be air-dried all the way
Air in system, another way is for preheating the water flowed through in two-stage water-cooling cooler 3.
In the present invention, the air dryer systems include level-one drying box 8, secondary drying case 9 and vacuum pump 13,
Wherein:
The air outlet slit of the air-cooled cooler 4 air inlet with the air inlet of level-one drying box 8 and secondary drying case 9 respectively
Mouth is connected；
Air intlet after the air outlet of the level-one drying box 8 and the air outlet confluence of secondary drying case 9 with evaporator 6
It is connected；
The air outlet slit of the evaporator 6 is connected with the air intlet of air-cooled cooler 4；
The air intlet of the vacuum pump 13 sky with the air outlet port of level-one drying box 8 and secondary drying case 9 respectively
Gas outlet port is connected；
The air outlet slit of the vacuum pump 13 is pumped into the sky of mouth and secondary drying case 9 with the air of level-one drying box 8 respectively
Gas is pumped into mouth and is connected.
Connecting tube in specific implementation, between the air outlet slit of the air-cooled cooler 4 and the air inlet of level-one drying box 8
Road is provided with the first air-valve 14；
It is provided on connecting line between the air outlet slit of the air-cooled cooler 4 and the air inlet of secondary drying case 9
Second air-valve 15.
Connection in specific implementation, between the air intlet of the vacuum pump 13 and the air outlet port of level-one drying box 8
Third air-valve 16 is provided on pipeline；
It is provided on connecting line between the air intlet of the vacuum pump 13 and the air outlet port of secondary drying case 9
4th air-valve 17；
The air outlet slit of the vacuum pump 13 and the air of level-one drying box 8, which are pumped on the connecting line between mouth, to be provided with
5th air-valve 18；
The air outlet slit of the vacuum pump 13 and the air of secondary drying case 9, which are pumped on the connecting line between mouth, to be provided with
6th air-valve 19.
In specific implementation, the 7th air-valve 20, the secondary drying case 9 are provided on the air outlet of the level-one drying box 8
Air outlet on be provided with Bafeng valve 21.
It should be noted that the evaporator 6 is air-cooled evaporator for the utility model.Level-one drying box 8 and two
Grade drying box 9 is hollow drying box, and inside is for placing material to be dried.
It should be noted that, by dry air recycling, after heating, coming not for air dryer systems
The material to be dried placed in disconnected heating level-one drying box 8 and secondary drying case 9 removes material internal moisture, meanwhile, vacuum pump
13 may be implemented the exchange of dried medium (such as air) between level-one drying box 8 and secondary drying case 9, can intermittently be level-one
Drying box 8 and secondary drying case 9 provide different air pressures, are in drying process under the conditions of transformation.
It should be noted that being hollow by one section between the interconnected component of any two for the utility model
Pipeline be connected.
In order to more understand the technical concept of the utility model, the specific work process of the utility model is carried out below detailed
It describes in detail bright.
For the water that external water source provides, enters two-stage water-cooling cooler 3 by Water flow adjusting valve 11 and complete the first step
Heat absorption completes second step heat absorption subsequently into level-one water-cooling cooler 2, after reaching the temperature that user specifies, is stored in heat in time
In water tank 7；When the refrigerant flow in two-stage water-cooling cooler 3 increases, pass through the synchronous increase water of Water flow adjusting valve 11
Flow, the water flow otherwise reduced.Therefore, required hot water can be provided for user, realize hot water supply.
In order to meet the needs of user is to dry materials, the second air-valve 15, the 4th air-valve 17, the 5th air-valve 18, the are closed
Bafeng valve 21 opens the first air-valve 14, third air-valve 16, the 6th air-valve 19, the 7th air-valve 20, dry medium (such as air) warp
It after air-cooled cooler 4 heats, enters back into level-one drying box 8, heats the material to be dried placed inside level-one drying box 8,
Vacuum pump 13 is opened simultaneously, the air in secondary drying case 9 is pumped into level-one drying box 8, so that the sky in level-one drying box 8
Atmospheric pressure increases, and the decrease in air pressure in secondary drying case 9；After being spaced predetermined time period, the second air-valve 15 of opening,
4th air-valve 17, the 5th air-valve 18, Bafeng valve 21 close the first air-valve 14, third air-valve 16, the 6th air-valve 19, the 7th wind
Valve 20, so that dried medium after the heating of air-cooled cooler 4, enters back into and heats its internal material in secondary drying case 9, simultaneously
Vacuum pump 13 is opened, the air in level-one drying box 8 is pumped into secondary drying case 9, so that the air pressure in secondary drying case 9
Power increases, and the decrease in air pressure in level-one drying box 8；Then, dry air enters in evaporator 6, is cooling down
After dehumidifying, return in air-cooled cooler 4.
It should be noted that the rate of drying of material is high and material itself adds to material withering initial stage
Heat needs big energy to turn the first refrigerant flow regulating valve down at this point, tuning up the aperture of second refrigerant flow control valve 12
10 aperture so that increasing into the refrigerant flow in air-cooled cooler 4, and enters the refrigerant of two-stage water-cooling cooler 3
Flow is reduced, while regulating water flow regulating valve 11, reduces the inflow flow of water, while meeting dry demand, can be produced
Raw less hot water；
Decline in the rate of drying to material withering later period, material, the heat needed declines therewith, tunes up
The aperture of first refrigerant flow regulating valve 10, turns the aperture of second refrigerant flow control valve 12 down, so that into air-cooled cold
But the refrigerant flow of device 4 reduces, and the refrigerant flow for entering two-stage water-cooling cooler 3 increases, while regulating water flow tune
Valve 11 is saved, increases the inflow flow of water, while guaranteeing drying air temperature, more hot water can be generated, avoid heat
The waste of amount.
Based on above technical scheme it is found that for the utility model, it can be realized simultaneously hot water supply and dry materials,
Hot water can be used for drying factory's reference or life uses, while the flow of hot water can be according to drying condition to the difference of energy supply demand
And condition is carried out, furthermore, it is contemplated that dry air pressure fluctuation is beneficial to dry progress, and it is specially provided with two intermittences
The drying box of transformation, it is final to improve dry rate of water loss.
In conclusion compared with prior art, one kind provided by the utility model can supplying hot water carbon dioxide heat-pump
Drying system can be effectively utilized the delivery temperature of system inner compressor, the supply of Lai Shixian hot water and dry materials, avoid
The valuable wasting of resources, saves the economic expenditure of user, is of great practical significance.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (9)
1. one kind can supplying hot water Heat Pump Drying System with Carbon Dioxide, which is characterized in that including refrigerant-cycle systems, for water system
System and air dryer systems, and can be according to hot water and dry demand come adjusting refrigerant flow rate, in which:
It is empty to carry out the circulation in progressive solution and air dryer systems for the water to water system for refrigerant-cycle systems
Gas is heated；Water system, the water for flowing into outside is conveyed to refrigerant-cycle systems and carries out progressive solution, and stores
Water after heating；
Air dryer systems, are used to form the air circulated, and by following after refrigerant-cycle systems heat treatment
Material to be dried is dried in annular space gas, realizes the intermittently drying of different drying boxes.
2. Heat Pump Drying System with Carbon Dioxide as described in claim 1, which is characterized in that the refrigerant-cycle systems include
Compressor (1), level-one water-cooling cooler (2), two-stage water-cooling cooler (3), air-cooled cooler (4), expansion valve (5) and evaporator
(6), in which:
The refrigerant outlet of the compressor (1) is connected with the refrigerant inlet of level-one water-cooling cooler (2)；
The refrigerant outlet of the level-one water-cooling cooler (2) refrigerant inlet and wind with two-stage water-cooling cooler (3) respectively
The refrigerant inlet of cold cooler (4) is connected；
After the refrigerant outlet of the refrigerant outlet of the two-stage water-cooling cooler (3) and air-cooled cooler (4) confluence with expansion
The refrigerant inlet of valve (5) is connected；
The refrigerant outlet of the expansion valve (5) is connected with the refrigerant inlet of evaporator (6)；
The refrigerant outlet of the evaporator (6) is connected with the refrigerant inlet of compressor (1).
3. Heat Pump Drying System with Carbon Dioxide as claimed in claim 2, which is characterized in that the level-one water-cooling cooler (2)
Refrigerant outlet and two-stage water-cooling cooler (3) between connecting line on be provided with the first refrigerant flow regulating valve
(10)；
Is provided on connecting line between the refrigerant outlet and air-cooled cooler (4) of the level-one water-cooling cooler (2)
Two refrigerant flow regulating valves (12).
4. Heat Pump Drying System with Carbon Dioxide as described in claim 1, which is characterized in that the water system includes boiler
(7) and Water flow adjusting valve (11), in which:
One end of the Water flow adjusting valve (11) is connected with external water source, the other end of the Water flow adjusting valve (11) with
The water inlet of two-stage water-cooling cooler (3) is connected；
The water outlet of the two-stage water-cooling cooler (3) is connected with the water inlet of level-one water-cooling cooler (2)；
The water outlet of the level-one water-cooling cooler (2) is connected with the water inlet of boiler (7).
5. Heat Pump Drying System with Carbon Dioxide as claimed in claim 4, which is characterized in that the Water flow adjusting valve (11)
One end is connected by water pump with external water source.
6. the Heat Pump Drying System with Carbon Dioxide as described in any one of claims 1 to 5, which is characterized in that the air is dry
Drying system includes level-one drying box (8), secondary drying case (9) and vacuum pump (13), in which:
The air outlet slit of the air-cooled cooler (4) respectively with the air inlet of level-one drying box (8) and secondary drying case (9) into
Air port is connected；
After the air outlet of the air outlet of the level-one drying box (8) and secondary drying case (9) confluence with the air of evaporator (6) into
Mouth is connected；
The air outlet slit of the evaporator (6) is connected with the air intlet of air-cooled cooler (4)；
The air intlet of the vacuum pump (13) respectively with the air outlet port of level-one drying box (8) and secondary drying case (9)
Air outlet port is connected；
The air outlet slit of the vacuum pump (13) is pumped into mouth and secondary drying case (9) with the air of level-one drying box (8) respectively
Air is pumped into mouth and is connected.
7. Heat Pump Drying System with Carbon Dioxide as claimed in claim 6, which is characterized in that the sky of the air-cooled cooler (4)
The first air-valve (14) are provided on connecting line between gas outlet and the air inlet of level-one drying box (8)；
It is provided on connecting line between the air outlet slit of the air-cooled cooler (4) and the air inlet of secondary drying case (9)
Second air-valve (15).
8. Heat Pump Drying System with Carbon Dioxide as claimed in claim 6, which is characterized in that the air of the vacuum pump (13) into
Third air-valve (16) are provided on connecting line between mouth and the air outlet port of level-one drying box (8)；
It is provided on connecting line between the air intlet of the vacuum pump (13) and the air outlet port of secondary drying case (9)
4th air-valve (17)；
The air outlet slit of the vacuum pump (13) and the air of level-one drying box (8), which are pumped on the connecting line between mouth, to be provided with
5th air-valve (18)；
The air outlet slit of the vacuum pump (13) and the air of secondary drying case (9), which are pumped on the connecting line between mouth, to be provided with
6th air-valve (19).
9. Heat Pump Drying System with Carbon Dioxide as claimed in claim 7, which is characterized in that the level-one drying box (8) goes out
It is provided with the 7th air-valve (20) on air port, is provided with Bafeng valve (21) on the air outlet of the secondary drying case (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172710.2U CN208736052U (en) | 2018-07-23 | 2018-07-23 | It is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172710.2U CN208736052U (en) | 2018-07-23 | 2018-07-23 | It is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide |
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| Publication Number | Publication Date |
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| CN208736052U true CN208736052U (en) | 2019-04-12 |
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ID=66026762
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759347A (en) * | 2018-07-23 | 2018-11-06 | 天津商业大学 | It is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide |
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2018
- 2018-07-23 CN CN201821172710.2U patent/CN208736052U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759347A (en) * | 2018-07-23 | 2018-11-06 | 天津商业大学 | It is a kind of can supplying hot water Heat Pump Drying System with Carbon Dioxide |
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