CN202470421U - Air source heat pump system for providing straight flow type high-temperature hot air - Google Patents
Air source heat pump system for providing straight flow type high-temperature hot air Download PDFInfo
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- CN202470421U CN202470421U CN201220015925XU CN201220015925U CN202470421U CN 202470421 U CN202470421 U CN 202470421U CN 201220015925X U CN201220015925X U CN 201220015925XU CN 201220015925 U CN201220015925 U CN 201220015925U CN 202470421 U CN202470421 U CN 202470421U
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Abstract
The utility model provides an air source heat pump system for providing straight flow type high-temperature hot air. The air source heat pump system consists of a plurality of air source heat pumps, wherein condensers of the plurality of air source heat pumps are serially connected to form a condenser group for carrying out multistage heating, air to be heated sequentially passes through each condenser of the air source heat pump, the hot air temperature of each condenser of the air source heat pump is sequentially rose according to air inlet sequences, and a condenser fan is arranged at the air outlet end of the condenser group for carrying out air suction. The air source heat pump system overcomes the technical prejudice that the high-temperature hot air cannot be obtained during the heating in the straight flow air mode in the heat pump technology, and the problem about providing hot air at the high temperature of 85 DEG C by the air source heat pump continuously in the straight flow mode is solved. The application space and the application prospect of the air source heat pump are expanded, and obvious energy saving and emission reduction benefits are obtained in the field of heating of the straight flow air source heat pump.
Description
Technical field
The utility model relates to a kind of air source heat pump that utilizes and obtains the device that the direct current high-temperature hot-air carries out industrialization heating or oven dry.
Background technology
Circulated air is meant that all or part of return air gets into distinguished and admirable in the same air intake again.Direct current wind is the relative concept of circulated air.60-80 ℃ of high temperature direct current hot blast of a lot of local employings heats in the prior art, for example:
One, the large-scale industrial production of noodles; Be that noodles with press forming are placed on the tunnel type production line mostly; Mode with heated-air drying is carried out, and noodles move forward with the speed of per minute number meter, require continuous hot blast wind-warm syndrome about 70 ℃, it to be carried out drying; Wind-warm syndrome is high more, helps improving production capacity and quality more.Traditional method is with coal-burning boiler heating conduction oil, and heat energy is sent into the heat exchanger in the tunnel, brushes the hot blast that produces about 70 ℃ down at blower fan noodles are carried out drying.
Two, the printing equipment in the machine room comprises printing machine, dry compound machine etc.Requirement such as printing-ink or compound glue is heating and curing in a short period of time, and the printed material article carry out with the printing speed of per minute rice up to a hundred or hundreds of rice, needs continuous hot blast to heat printing the position.Existing printing equipment is delivered to electric heating tube through blower fan and pipeline with the air in the environment of air inlet absorption and is heated; The position that again hot air injection is extremely needed heating; Make the rapid moisture content rapid evaporation in volatilization or the water color ink of organic solvent in the printing ink, ink solidification.Being mixed with the moisture of a large amount of steam state molecules or the hot-air of organic solvent is then drained into outdoor through exhaust piping.
Not enough below above-mentioned heat-supplying mode exists: the resistance heated Energy Efficiency Ratio of the mat woven of fine bamboo strips one, electrical heating tubing shape is low, and its Energy Efficiency Ratio can only reach about 0.85-0.90; The mat woven of fine bamboo strips two, fire coal contain sulfur dioxide, become sulfuric acid (acid rain) acidifying behind the chance water and plough, and reduce the agricultural production quality and yield, and sulfur dioxide and acid rain also corrode building, execute fully.Also environment is caused negative influence simultaneously.The coal-burning boiler that enterprise uses generally is one ton to four tons a arcola, carries out indirect with the media heat-conducting mode, and its heat energy utilization rate can only reach the 15-30 scope, and thermal waste is big, is unfavorable for energy-saving and emission-reduction.
Prior art also is applied to the heating of producing and living with heat pump apparatus of air source; Under the effect of condenser fan, see hot blast off to heating clamber, but its heating efficiency or intensity are limited; The hot blast temperature that direct current wind mode of heating obtains is lower; Can't satisfy the commercial Application needs of high temperature more than 80 ℃, can only the temperature that heat room air progressively be improved with the mode of circulated air.Can not obtain high temperature single flow hot blast.
The utility model content
In order to solve above-mentioned drawback, the utility model technical problem to be solved is, develops a kind ofly can obtain the air source heat pump system that the direct current high-temperature hot-air carries out industrialization heating or oven dry, helps energy-saving and emission-reduction.In order to solve the problems of the technologies described above; The technical scheme that the utility model adopts is; A kind of air source heat pump system that the single flow high-temperature hot-air is provided is made up of many air source heat pumps, and every air source heat pump mainly is made up of evaporimeter, compressor, condenser, reservoir, throttling arrangement, working medium circulating line; It is characterized in that; The condenser series connection of many air source heat pumps forms the condenser group and carries out multistage heating, and the air that needs heating is successively through each air source heat pump condenser, and the condenser hot blast temperature of each air source heat pump improves according to the air intake order successively; The air opening end that condenser fan is arranged on said condenser group carries out the air draught type heat exchange.
The beneficial effect of the utility model is, has overcome heat pump techniques direct current wind mode and has heated the technological prejudice that can not obtain high-temperature hot-air, and having solved to connect to continue with the direct current mode provides the problem of 85 ℃ of high-temperature hot-airs.The technical scheme that adopts is many heat pump apparatus of air source condenser combined serial heating; Get into two heat pump condensers of the mat woven of fine bamboo strips through the heated wind of heat pump condenser of the mat woven of fine bamboo strips, get into the 3rd again, so analogize; Terminal condenser air outlet wind-warm syndrome can reach 85 ℃, reach as high as 90 ℃ or more than.
A kind of preferred as the utility model, the shared condenser fan of said condenser group.The condenser combined heated of many air source heat pumps can be carried out heat exchange by a condenser fan, has reduced the energy consumption of blower fan, has reduced production cost.
As a kind of improved technical scheme, the condenser of many air source heat pumps is combined in the housing, and the air that needs heating is successively through each condenser.Many condensers are installed in the housing, have practiced thrift manufacturing cost.
A kind of preferred as the utility model, 3-5 platform condenser tandem compound carries out multistage heating.
The condenser group that the utility model adopts many condenser series connection to constitute adds hot-air; According to being arranged to the order of air opening end by the air inlet end of condenser group, each part condenser is referred to as respectively: first condenser, second condenser ... inferior terminal condenser, terminal condenser.Wherein, The working medium condensation temperature of second condenser is higher than first; The working medium condensation temperature of the 3rd condenser is higher than second ...; The working medium condensation temperature of terminal condenser is the highest because the purpose of present technique scheme is the hot blast that obtains more than 85 ℃, the working medium condensation temperature of terminal condenser can reach 90 ℃ in addition more than.Because condensation temperature is too high possibly to produce negative influence to system: like the increase of compressor power consumption, refrigerating capacity minimizing, system protection shutdown etc.For normal, the stable operation of safeguards system, through repeatedly repetition test research, we find, can adopt following two kinds of technical measures to evade this negative influence alone or in combination:
One, as a kind of improved technical scheme, set up secondary duct the terminal condenser working medium of said condenser group is led to after secondary condenser carries out condensation once more, send the reservoir of the air source heat pump at terminal condenser place back to; Any condenser that can select first condenser to time terminal condenser also can be newly established a condenser as said secondary condenser as said secondary condenser.
When said secondary condenser is when being selected from any condenser of first condenser to time terminal condenser; The air source heat pump delivery temperature at this condenser place should be not more than 90 ℃, and selected this condenser is carried out above-mentioned the connection through secondary duct with terminal condenser; When said secondary condenser was condenser newly establishing, this condenser can not be provided with main process equipments such as compressor, evaporimeter, fluid reservoir, and this condenser of newly establishing is carried out above-mentioned the connection through secondary duct with terminal condenser.
Said secondary duct one end connects the working medium pipe outlet of terminal condenser; The other end links to each other through the reservoir of secondary condenser with the air source heat pump at terminal condenser place; After the high temperature refrigerant that terminal condenser is flowed out is introduced and continued in the secondary condenser to participate in the heat exchange condensation, flow back to again in the reservoir of air source heat pump at terminal condenser place.The beneficial effect of this technical scheme is: the working medium condensation temperature and the condensing pressure that 1, have significantly reduced terminal condenser; The working medium that makes condensation temperature exceed about 30 ℃ of prior aries is further cooled off at secondary condenser; Condensing pressure reduces; Condensation temperature reduces, and avoids occurring because of condensation temperature is too high that the compressor power consumption significantly increases, refrigerating capacity reduces and phenomenon such as protection shutdown.Still can operate as normal when making heated air source pump condensation temperature more than 90 ℃ and 90 ℃, better solve terminal air source heat pump and improved the condensation temperature that hot blast temperature brings, the problem of hypertonia; 2, high temperature refrigerant discharges a large amount of heats after flowing into secondary condenser, has improved the secondary condenser temperature, through improving the secondary condenser temperature, reaches the purpose that improves its hot blast temperature.To be converted into the useful heat energy of secondary condenser to the harmful heat energy of air source heat pump at terminal condenser place, strengthen the heating capacity of entire system.
Two, increase the capacity of the reservoir of heat pump apparatus of air source:
In the existing air source heat pump, the effect of reservoir is to store the liquid working substance that is flowed out by condenser, and the internal circulating load of working medium in the stable air source heat pump device satisfies the needs of winter and different operating modes in summer.Its input power is the reservoir that 3-4 compressor is joined 1.2 liters of capacity, and 5-8 compressor is joined the reservoir of 1.8 liters of capacity, and 9 compressor is joined the reservoir of 4.0 liters of capacity, and 10-12 compressor is joined the reservoir of 5.6 liters of capacity.
As a kind of improvement of the utility model, when the input power of said compressor was 3-4, the capacity of said reservoir was the 1.4-4.2 liter; When the power of said compressor was 5, the capacity of said reservoir was the 2.0-6.3 liter; When the power of said compressor was 6, the capacity of said reservoir was the 2.2-6.3 liter; When the power of said compressor was 7, the capacity of said reservoir was the 2.9-6.8 liter; When the power of said compressor was 8, the capacity of said reservoir was the 2.5-7.5 liter; When the power of said compressor was 9, the capacity of said reservoir was the 4.4-9.8 liter; When the power of said compressor was 10-12, the capacity of said reservoir was the 6.2-12 liter.Liquid refrigerant is cooled off in reservoir preferably, and condensing pressure reduces, and condensation temperature reduces, and avoids significantly increasing because of condensation temperature is too high the phenomenon of press power consumption, minimizing refrigerating capacity.Better solve the condensation temperature that improves hot blast temperature and bring, the problem of hypertonia, innovated the function and application of reservoir.This technical scheme can be only to terminal or inferior terminal condenser.Also can carry out above-mentioned improvement to all condensers.
To combine the accompanying drawing and the specific embodiment that the utility model is described further below.
Description of drawings
Fig. 1 is that embodiment 1 system constitutes floor map;
Fig. 2 is the internal structure sketch map (selects in first condenser to the inferior terminal condenser second condenser as secondary condenser) of embodiment 1 series connection condenser group;
Fig. 3 is the internal structure sketch map (newly establishing a condenser as secondary condenser) of embodiment 1 series connection condenser group;
Fig. 4 is that embodiment 2 systems constitute floor map;
Fig. 5 is the internal structure sketch map of embodiment 2 series connection condenser groups.
The specific embodiment
1: eight look printing machine of embodiment heat supply transformation project:
The former condition of project: 1050 millimeters width, eight look intaglio press; Because of containing a large amount of organic solvents in the waste gas of discharging; Can't adopt air source heat pump to carry out the circulated air mode heats; Adopt air source heat pump to heat its wind-warm syndrome and do not reach requirement again, so adopt the electrothermal tube mode of heating with direct current wind mode.The every look 30KW of electrical heating power divides third gear, first grade of 15KW, and second grade of 9KW, mat woven of fine bamboo strips third gear 6KW is 240KW altogether, eight look printing temperatures require to be respectively 60 ℃-62 ℃, 60 ℃-62 ℃, 63 ℃-66 ℃, 80 ℃-83 ℃.63℃-66℃、70℃-73℃、72℃-75℃、80℃-83℃。(down with) printing dry heat power consumption 191 degree per hour during 32 ℃ of environment temperatures.
Situation after the transformation of employing the utility model technical scheme: referring to Fig. 1,2; A kind of concrete structure of reflection the utility model; The said air source heat pump system that the single flow high-temperature hot-air is provided, 1050 millimeters width, eight look intaglio press 111 of device use eight six air source heat pumps to divide two groups the single flow high-temperature hot-air is provided altogether in machine room's body of wall 118.Wherein:
Every air source heat pump is made up of with condenser group 114 two parts the main frame 101 that working medium circulating line 115 connects, and main frame 101 is made up of compressor (omitting among the figure), throttling arrangement (omitting among the figure), evaporimeter and evaporator fan (omitting among the figure), reservoir 123; The condenser of eight air source heat pumps is divided into two groups and constitutes two condenser groups 114; The level Four heating is carried out in series connection; The internal structure of condenser group 114 is referring to Fig. 2; The condenser of four air source heat pumps is combined in the housing 120, and according to being arranged to the order of air opening end by the air inlet end of condenser group 114, each part condenser is referred to as respectively: first condenser 124, second condenser 122, inferior terminal condenser 119, terminal condenser 125.The air that needs heating is successively through each part condenser; Wherein, The working medium condensation temperature of second condenser 122 is higher than first condenser 124, and the working medium condensation temperature of inferior terminal condenser 119 is higher than second condenser 122, and the working medium condensation temperature of terminal condenser 125 is the highest; The air opening end of condenser group 114 is through each air inlet 112 of warm-air pipe 113 connection intaglio press 111, and the blower fan that is equipped with by intaglio press 111 carries out the air draught type heat exchange.Eight look printing machines have eight air inlets 112, and each condenser group 114 is to four air inlets, 112 supply hot blasts.Completion be heating and curing and the waste gas that contains a large amount of organic solvents successively through outside exhaust piping 121 and the printing machine Waste gas outlet 117 discharge workshops.The evaporimeter of main frame 101 carries out extraneous air to deliver in the workshop through cold air duct 110 after the condensation process.
For fear of the working medium condensation temperature of terminal condenser 125 is too high system is caused negative influence; Present embodiment is set up secondary duct 126 working medium of the terminal condenser 125 of condenser group 114 is led to second condenser 122 (at this moment; In first condenser 124 to inferior terminal condenser 119, select second condenser 122 as secondary condenser) carry out condensation once more after, send the reservoir 123 of the air source heat pump at terminal condenser 125 places back to.
As other is a kind of embodiment, also can newly establish a condenser as said secondary condenser.Referring to Fig. 3; Be with the described difference of epimere; Setting up second secondary duct 127 leads to the working medium of the terminal condenser 125 of condenser group 114 and newly establishes condenser 128 (at this moment; Newly establish condenser 128 as secondary condenser) carry out condensation once more after, send the reservoir 123 of the air source heat pump at terminal condenser 125 places back to.
Adopt technique scheme, 86 ℃ of the air outlet wind-warm syndrome of said condenser group, eight look printing temperatures require to be respectively 60 ℃, 62 ℃, 64 ℃, 83 ℃.65 ℃, 71 ℃, 72 ℃, 82 ℃ (air inlet 112 places are provided with register, reduce the hot blast input quantity of centering, low temperature printing station), air source heat pump and blower fan be power consumption 52 degree per hour, and Energy Efficiency Ratio is 3.67.With former there is something special relatively, identical workshop identical device is on the basis that keeps identical heats, per hour power consumption reduces by 139 degree.Simultaneously, the workshop is sent into through cold air duct 110 in a large amount of new air-cooled backs of coagulating, and relative humidity reduced when the workshop temperature reduced, and body sense level of comfort obviously improves, and the organic solvent smell obviously reduces.
Embodiment 2: dry compound machine heat supply transformation project:
The former condition of project: one of 1050 millimeters dry compound machine, the wind speed 2000m of three air inlets
3About/h, require 80 ℃-83 ℃ of high-temperature regions, 71 ℃-74 ℃ of middle warm areas, 62 ℃-65 ℃ of low-temperature spaces.Because of containing organic solvent in the waste gas of discharging, can't adopt air source heat pump to carry out the circulated air mode and heat, adopt air source heat pump to heat its wind-warm syndrome and do not reach requirement again, so adopt the electrothermal tube mode of heating with direct current wind mode.Dry compound machine high-temperature region electrothermal tube power 70KW, middle warm area electrothermal tube power 55KW, low-temperature space electrothermal tube power 50KW, total electrical heating power 175KW.During 30 ℃ of environment temperatures, 82 ℃ of power consumptions of high-temperature region heating, 41 degree/hour, 74 ℃ of power consumptions of middle warm area, 33 degree/hour, 63 ℃ of power consumptions of low-temperature space, 25 degree/hour, per hour heat power consumption and amount to 99 degree.
Situation after the transformation of employing the utility model technical scheme: referring to Fig. 4,5; A kind of concrete structure of reflection the utility model; The said air source heat pump system that the single flow high-temperature hot-air is provided; 1050 millimeters dry compound machines 208 of device use four six air source heat pumps that the single flow high-temperature hot-air is provided altogether in machine room's body of wall 209.Wherein:
Every air source heat pump is made up of with condenser group 205 two parts the main frame 201 that working medium circulating line 202 connects, and main frame 201 is made up of compressor (omitting among the figure), throttling arrangement (omitting among the figure), evaporimeter and evaporator fan (omitting among the figure), reservoir 216; The condenser of four air source heat pumps constitutes condenser group 205; The level Four heating is carried out in series connection; The internal structure of condenser group 205 is referring to Fig. 5; The condenser of four air source heat pumps is combined in the housing 211, and according to being arranged to the order of air opening end by the air inlet end of condenser group 205, each part condenser is referred to as respectively: first condenser 212, second condenser 213, inferior terminal condenser 214, terminal condenser 215.The air that needs heating is successively through each part condenser; Wherein, The working medium condensation temperature of second condenser 213 is higher than first condenser 212, and the working medium condensation temperature of inferior terminal condenser 214 is higher than second condenser 213, and the working medium condensation temperature of terminal condenser 215 is the highest; The air opening end of condenser group 205 is through three air inlets 207 of warm-air pipe 206 connection dry compound machines 208, and the blower fan that is equipped with by dry compound machine 208 carries out the air draught type heat exchange.Completion be heating and curing and the waste gas that contains a large amount of organic solvents successively through outside exhaust piping 204 and the compounding machine Waste gas outlet 203 discharge workshops.The evaporimeter of main frame 201 carries out extraneous air to deliver in the workshop through cold air duct 210 after the condensation process.
For fear of the working medium condensation temperature of terminal condenser 215 is too high system is caused negative influence, the power of compressor is six in this example, and the capacity of reservoir 216 is the 2.2-6.3 liter; Liquid refrigerant is cooled off in reservoir preferably, and condensing pressure reduces, and condensation temperature reduces.
Adopt technique scheme; 87 ℃ of the air outlet wind-warm syndrome of said condenser group, 82 ℃ of dry compound machine 208 high-temperature regions, 73 ℃ of middle warm areas; 65 ℃ (air inlet 207 places are provided with register to low-temperature space; Reduce the hot blast input quantity of centering, the compound station of low temperature), air source heat pump and blower fan be power consumption 25.5 degree per hour, and Energy Efficiency Ratio is 3.88.With former there is something special relatively, identical workshop identical device is on the basis that keeps identical heats, per hour power consumption reduces by 73.5 degree.Simultaneously, the workshop is sent into through cold air duct 210 in a large amount of new air-cooled backs of coagulating, and relative humidity reduced when the workshop temperature reduced, and body sense level of comfort obviously improves, and the organic solvent smell obviously reduces.
By on can know that the technical scheme that the utility model condenser series connection is used connects to continue with direct current wind mode the problem of 85 ℃ of high-temperature hot-airs is provided owing to solved air source heat pump.Expanded the application space and the application prospect of air source heat pump, obtained considerable energy saving in the field of direct current wind air source heat pump heating and reduced discharging benefit.
Claims (7)
1. air source heat pump system that the single flow high-temperature hot-air is provided; Form by many air source heat pumps; Every air source heat pump mainly is made up of evaporimeter, compressor, condenser, reservoir, throttling arrangement, working medium circulating line, it is characterized in that, the condenser series connection of many air source heat pumps forms the condenser group and carries out multistage heating; The air that needs heating is successively through each air source heat pump condenser, and the condenser hot blast temperature of each air source heat pump improves according to the air intake order successively; The air opening end that condenser fan is arranged on said condenser group carries out the air draught type heat exchange.
2. a kind of air source heat pump system that the single flow high-temperature hot-air is provided as claimed in claim 1 is characterized in that, the shared condenser fan of said condenser group.
3. a kind of air source heat pump system that the single flow high-temperature hot-air is provided as claimed in claim 1 is characterized in that, the condenser of many air source heat pumps is combined in the housing, and the air that needs heating is successively through each condenser.
4. a kind of air source heat pump system that the single flow high-temperature hot-air is provided as claimed in claim 1 is characterized in that, 3-5 platform condenser tandem compound carries out multistage heating.
5. like each described a kind of air source heat pump system that the single flow high-temperature hot-air is provided of claim 1-4; It is characterized in that; Set up secondary duct the terminal condenser working medium of said condenser group is led to after secondary condenser carries out condensation once more, send the reservoir of the air source heat pump at terminal condenser place back to; Any condenser of selecting first condenser to time terminal condenser is perhaps newly established a condenser as said secondary condenser as said secondary condenser.
6. like each described a kind of air source heat pump system that the single flow high-temperature hot-air is provided of claim 1-4, it is characterized in that when the input power of said compressor was 3-4, the capacity of said reservoir was the 1.4-4.2 liter; When the power of said compressor was 5, the capacity of said reservoir was the 2.0-6.3 liter; When the power of said compressor was 6, the capacity of said reservoir was the 2.2-6.3 liter; When the power of said compressor was 7, the capacity of said reservoir was the 2.9-6.8 liter; When the power of said compressor was 8, the capacity of said reservoir was the 2.5-7.5 liter; When the power of said compressor was 9, the capacity of said reservoir was the 4.4-9.8 liter; When the power of said compressor was 10-12, the capacity of said reservoir was the 6.2-12 liter.
7. a kind of air source heat pump system that the single flow high-temperature hot-air is provided as claimed in claim 5 is characterized in that, when the input power of said compressor was 3-4, the capacity of said reservoir was the 1.4-4.2 liter; When the power of said compressor was 5, the capacity of said reservoir was the 2.0-6.3 liter; When the power of said compressor was 6, the capacity of said reservoir was the 2.2-6.3 liter; When the power of said compressor was 7, the capacity of said reservoir was the 2.5-6.8 liter; When the power of said compressor was 8, the capacity of said reservoir was the 2.5-7.5 liter; When the power of said compressor was 9, the capacity of said reservoir was the 4.4-9.8 liter; When the power of said compressor was 10-12, the capacity of said reservoir was the 6.2-12 liter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220015925XU CN202470421U (en) | 2012-01-14 | 2012-01-14 | Air source heat pump system for providing straight flow type high-temperature hot air |
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| CN201220015925XU CN202470421U (en) | 2012-01-14 | 2012-01-14 | Air source heat pump system for providing straight flow type high-temperature hot air |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519139A (en) * | 2012-01-14 | 2012-06-27 | 湖南省浏阳市择明热工器材有限公司 | Air source heat pump system for providing direct high temperature air |
| WO2015053610A1 (en) * | 2013-10-11 | 2015-04-16 | Thermo Hygro Consultants Sdn Bhd | Heat-pump heating apparatus |
| CN104859293A (en) * | 2015-05-21 | 2015-08-26 | 广州九恒新能源有限公司 | Integrated printing dryer |
-
2012
- 2012-01-14 CN CN201220015925XU patent/CN202470421U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519139A (en) * | 2012-01-14 | 2012-06-27 | 湖南省浏阳市择明热工器材有限公司 | Air source heat pump system for providing direct high temperature air |
| CN102519139B (en) * | 2012-01-14 | 2014-11-19 | 湖南省浏阳市择明热工器材有限公司 | Air source heat pump system for providing direct high temperature air |
| WO2015053610A1 (en) * | 2013-10-11 | 2015-04-16 | Thermo Hygro Consultants Sdn Bhd | Heat-pump heating apparatus |
| GB2534785A (en) * | 2013-10-11 | 2016-08-03 | Thermo Hygro Consultants Sdn Bhd | Heat-pump heating apparatus |
| GB2534785B (en) * | 2013-10-11 | 2020-04-29 | Thermo Hygro Consultants Sdn Bhd | Heat-pump heating apparatus |
| CN104859293A (en) * | 2015-05-21 | 2015-08-26 | 广州九恒新能源有限公司 | Integrated printing dryer |
| CN104859293B (en) * | 2015-05-21 | 2017-03-01 | 江华九恒新能源有限公司 | A kind of monoblock type printing drier |
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Granted publication date: 20121003 Termination date: 20160114 |
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