CN205048943U - Novel dehumidifying heat pump drying unit - Google Patents
Novel dehumidifying heat pump drying unit Download PDFInfo
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- CN205048943U CN205048943U CN201520739063.9U CN201520739063U CN205048943U CN 205048943 U CN205048943 U CN 205048943U CN 201520739063 U CN201520739063 U CN 201520739063U CN 205048943 U CN205048943 U CN 205048943U
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Abstract
The utility model discloses a novel dehumidifying heat pump drying unit, including refrigerating medium flow and drying medium flow, the refrigerating medium flow includes compressor, condenser, cross valve, heat exchanger, outer fan, choke valve, evaporimeter and controller, and the compressor export connects gradually condenser and the first port of cross valve, and cross valve second port connects gradually heat exchanger, choke valve, evaporimeter and cross valve fourth port, and the suction port of compressor is connected to cross valve third port, the controller is connected with cross valve, exogenous wind electromechanics respectively, through the circular telegram and the outage of controller control cross valve, realize rapid heating up mode and the dehumidification control of two kinds of modes of the mode of heating up at a slow speed, whether work through the outer fan of controller control, realizes toasting the accurate regulation of temperature in the equipment. The utility model discloses a cross valve, the circuit is simple, and control is convenient, and heat exchange efficiency is high.
Description
Technical field
The utility model relates to technical field of heat pumps, is specifically related to a kind of Novel dehumidifying heat pump drying unit.
Background technology
Tradition drying plant (fire coal, steam etc.), using energy source is low, and environmental-protecting performance is poor.The heat pump dryer developed in recent years, compares traditional drying plant, more energy-conserving and environment-protective, can adapt to the requirement of different stoving process.But current heat pump dryer also has the following disadvantages: (1) heat regenerator cold side wind is out connected with condenser, and condenser is connected with air outlet by blower fan.In this case, heat regenerator cold side wind out carries out heat exchange with condenser passively by blower fan, and heat exchange efficiency has much room for improvement; (2) in drying course, when temperature is too high, need to open hydrofuge and fresh wind port, cause heat dissipation capacity large, be unfavorable for the accurate control of temperature, and new entering of wind can bring moisture, be unfavorable for drying; (3) existing equipment complex circuit, is difficult to control.
Therefore, prior art haves much room for improvement.
Utility model content
The utility model, for above-mentioned Problems existing, provides a kind of Novel dehumidifying heat pump drying unit.
The utility model for achieving the above object, takes following technical scheme to be achieved:
A kind of Novel dehumidifying heat pump drying unit, comprises refrigerant flow process and drying medium flow process;
Described refrigerant flow process comprises compressor, condenser, cross valve, heat exchanger, the outer blower fan providing cold wind for heat exchanger, choke valve, evaporimeter and controller, described compressor outlet connects condenser and cross valve first port successively, cross valve second port connects heat exchanger, choke valve, evaporimeter and cross valve the 4th port successively, and cross valve the 3rd port connects suction port of compressor; Described controller respectively with cross valve, exogenous wind mechatronics; When cross valve is energized, the first port conducting the 4th port, the second port conducting the 3rd port; When cross valve power-off, the first port conducting second port, the 3rd port conducting the 4th port;
Described drying medium flow process comprises return air inlet, heat regenerator, evaporimeter, pressure fan, condenser and air outlet; Described return air inlet is connected with the hot side of heat regenerator; The hot side of described heat regenerator is connected with evaporimeter by airduct; Described evaporimeter airduct is out connected with heat regenerator cold side; Described heat regenerator cold side airduct is out connected with condenser and air outlet by pressure fan successively;
Described unit comprises indoor units and outdoor unit, and described return air inlet, heat regenerator, evaporimeter, pressure fan, condenser and air outlet are arranged at indoor units; Described heat exchanger and outer blower fan are arranged at outdoor unit, and described outdoor unit is also provided with air intake vent.
Preferably, described cross valve the 3rd is provided with gas-liquid separator between port and suction port of compressor, is provided with inner disc copper pipe in described gas-liquid separator, and described inner disc copper pipe two ends connect condensator outlet and cross valve first port respectively.After the refrigerant of condensator outlet enters inner disc copper pipe, the refrigerant exported with heat sink (heat exchanger or evaporimeter) carries out heat exchange, the heat that the refrigerant that heat sink (heat exchanger or evaporimeter) exports siphons away inner disc copper pipe in gas-liquid separator gets back to compressor, make unit possess certain degree of superheat and suction temperature, improve the heating performance of unit.
Preferably, reservoir is provided with between described choke valve and heat exchanger.
Preferably, the import and export of described choke valve are respectively equipped with device for drying and filtering.
Preferably, described return air inlet communicates with the inside of roasting plant, is convenient to the cold wind of the inside of roasting plant to send into the hot side of heat regenerator.
Preferably, described condenser is pipe type heat exchanger;
Preferably, described evaporimeter is pipe type heat exchanger.
Preferably, described choke valve is heating power expansion valve or electric expansion valve.
Preferably, described return air inlet is provided with screen pack.
Utility model works principle is as follows:
Be rapidly heated pattern: controller controls cross valve energising, exogenous wind tester in power-down state, the first port conducting the 4th port, the second port conducting the 3rd port.Refrigerant, under the piston action of compressor, is compressed into low temperature low pressure gas the gas of HTHP; High temperature and high pressure gas is cooled into liquid after entering condenser, thus releases large calorimetric, and cold air absorbs its heat and temperature constantly rises and becomes high-temperature hot air.Refrigerant is by after condenser, and enter in evaporimeter through cross valve first port and the 4th port, now, evaporimeter, as subcooler, can improve degree of supercooling; Then refrigerant enters in heat exchanger through choke valve and evaporates, and absorbs the heat in outer unit environment; Again through cross valve second port, cross valve the 3rd port, finally enter compressor, iterative cycles like this.Refrigerant absorbs the heat of air in heat exchanger, under the mechanism of compressor, releases heat, change the heat of hot blast into from condenser and evaporimeter (subcooler); Whole source pump uses inverse Carnot cycle principle, heating agent (refrigerant) is made to produce physical phase transition (liquid-vapor-liquid state) by heat pump acting, utilize in reciprocation cycle phase transition process and uninterruptedly absorb heat and put thermal property, the heat in low-temperature heat source air is drawn by heat exchanger, the continuous heat release in cold air by condenser and evaporimeter (subcooler), makes cold air be warmed up to high-temperature hot air gradually.Under this pattern, evaporimeter, as subcooler, can improve degree of supercooling, reduces the evaporating temperature of heat exchanger, makes heat exchanger draw the more heat energy of outside air, greatly improves the heating capacity of unit.
Dehumidify heating mode at a slow speed: controller controls cross valve power-off, exogenous wind tester in power-down state, the first port conducting second port, the 3rd port conducting the 4th port.Refrigerant, under the piston action of compressor, is compressed into low temperature low pressure gas the gas of HTHP; High temperature and high pressure gas is cooled into liquid after entering condenser, thus releases large calorimetric, and cold air absorbs its heat and temperature constantly rises and becomes high-temperature hot air.Refrigerant is by after condenser, and enter in heat exchanger through cross valve first port and the second port, now, heat exchanger, as subcooler, can improve degree of supercooling; Then refrigerant enters in evaporimeter through choke valve and evaporates, and absorbs the heat in outer unit environment; Again through cross valve the 4th port, cross valve the 3rd port, finally enter compressor, iterative cycles like this.Refrigerant absorbs the heat of air in evaporimeter, under the mechanism of compressor, releases heat, change the heat of hot blast into from condenser and heat exchanger (subcooler); Whole source pump uses inverse Carnot cycle principle, heating agent (refrigerant) is made to produce physical phase transition (liquid-vapor-liquid state) by heat pump acting, utilize in reciprocation cycle phase transition process and uninterruptedly absorb heat and put thermal property, the heat in low-temperature heat source air is drawn by evaporimeter, the continuous heat release in cold air by condenser and heat exchanger (subcooler), makes cold air be warmed up to high-temperature hot air gradually.Under this pattern, heat exchanger, as subcooler, can improve the degree of supercooling of refrigeration system, reduces the evaporating temperature of evaporimeter, makes evaporimeter draw the more heat energy of outside air, greatly improves the heating capacity of unit.
When unit starts to dry, be in the pattern of being rapidly heated.After the temperature in roasting plant reaches design temperature, unit is just in the heating mode at a slow speed that dehumidifies.Dehumidifying at a slow speed in heating mode, when the temperature in roasting plant is higher than design temperature, controller starts outer blower fan, after cold wind enters outer unit from air intake vent, enter in external environment from outer blower fan after heat exchanger, thus heat is dispersed in external environment go, cause the temperature in roasting plant to reduce.When the temperature in roasting plant is lower than design temperature, controller cuts out outer blower fan, and unit gets back to the heating mode at a slow speed that dehumidifies.By the opening and closing of outer blower fan, can temperature in fine adjustment roasting plant, make it be in temperature constant state.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) the utility model blower setting is between heat regenerator cold side and condenser, and initiatively heat regenerator cold side hot blast is out blowed to condenser and air outlet, heat exchange efficiency is higher.
(2) the utility model is by the opening and closing of outer blower fan, can temperature in fine adjustment roasting plant, make it be in temperature constant state, without the need to arranging and opening hydrofuge and fresh wind port, solve the heat dissipation capacity that existing adjustment temperature manner brings large, be difficult to accurate temperature controlling and bring the problems such as moisture.
(3) the utility model adopts cross valve, and circuit is simple, and it is convenient to control.Control the energising of cross valve and power-off by controller, realize the pattern that is rapidly heated and the control of the heating mode two kinds of patterns at a slow speed of dehumidifying; Whether control the work of outer blower fan by controller, realize the fine adjustment of temperature in roasting plant.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Novel dehumidifying heat pump drying of the utility model unit;
Fig. 2 is the refrigerant flow chart of a kind of Novel dehumidifying heat pump drying of the utility model unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
See Fig. 1 ~ 2: a kind of Novel dehumidifying heat pump drying unit, comprises refrigerant flow process and drying medium flow process.
Wherein, refrigerant flow process comprises compressor 1, condenser 2, cross valve 3, heat exchanger 4, the outer blower fan 5 providing cold wind for heat exchanger 4, choke valve 6, evaporimeter 7 and controller 8.Compressor 1 exports and connects condenser 2 and cross valve 3 first port successively, and cross valve 3 second port connects heat exchanger 4, choke valve 6, evaporimeter 7 and cross valve 3 the 4th port successively, and cross valve 3 the 3rd port connects compressor 1 entrance.Controller 8 is electrically connected with cross valve 3, outer blower fan 5 respectively.When cross valve 3 is energized, first port (cross valve left side port) conducting the 4th port (on the right of cross valve lower port), the second port (on the right of cross valve upper port) conducting the 3rd port (on the right of cross valve central port); When cross valve power-off, the first port conducting second port, the 3rd port conducting the 4th port.
Drying medium flow process comprises return air inlet 9, heat regenerator 10, evaporimeter 7, pressure fan 11, condenser 2 and air outlet 12.Return air inlet 9 is connected with the hot side of heat regenerator 10, the hot side of heat regenerator 10 is connected with evaporimeter 7 by airduct, evaporimeter 7 airduct is out connected with heat regenerator 10 cold side, and heat regenerator 10 cold side airduct is out connected with air outlet 12 by pressure fan 11, condenser 2 successively.
Unit comprises indoor units 13 and outdoor unit 14, and return air inlet 9, heat regenerator 10, evaporimeter 7, pressure fan 11, condenser 2 and air outlet 12 are arranged at indoor units 13; Heat exchanger 4 and outer blower fan 5 are arranged at outdoor unit 14.Outdoor unit 14 is also provided with air intake vent 15.
Gas-liquid separator 16 is provided with between cross valve 3 the 3rd port and compressor 1 entrance.Be provided with inner disc copper pipe in gas-liquid separator 16, inner disc copper pipe two ends connect condenser 2 respectively and export and cross valve 3 first port.After the refrigerant that condenser 2 exports enters inner disc copper pipe, the refrigerant exported with heat sink (heat exchanger or evaporimeter) carries out heat exchange, the heat that the refrigerant that heat sink (heat exchanger or evaporimeter) exports siphons away inner disc copper pipe in gas-liquid separator 16 gets back to compressor 1, make unit possess certain degree of superheat and suction temperature, improve the heating performance of unit.
Fluid reservoir 17 is provided with between choke valve 6 and heat exchanger 4.The import and export of choke valve 6 are respectively equipped with device for drying and filtering 18.
Return air inlet 9 communicates with the inside of roasting plant, is convenient to the cold wind of the inside of roasting plant to send into the hot side of heat regenerator 10.
Condenser 2 is pipe type heat exchanger;
Evaporimeter 7 is pipe type heat exchanger.
Choke valve 6 is heating power expansion valve or electric expansion valve.
Return air inlet 9 is provided with screen pack.
Utility model works principle is as follows:
Be rapidly heated pattern: controller 8 controls that cross valve 3 is energized, outer blower fan 5 power-off, the first port conducting the 4th port, the second port conducting the 3rd port.Refrigerant, under the piston action of compressor 1, is compressed into low temperature low pressure gas the gas of HTHP; High temperature and high pressure gas is cooled into liquid after entering condenser 2, thus releases large calorimetric, and cold air absorbs its heat and temperature constantly rises and becomes high-temperature hot air.Refrigerant is by after condenser 2, and enter in evaporimeter 7 through cross valve 3 first port and the 4th port, now, evaporimeter 7, as subcooler, can improve degree of supercooling; Then refrigerant enters in heat exchanger 4 through choke valve 6 and evaporates, and absorbs the heat in outer unit environment; Again through cross valve 3 second port, cross valve 3 the 3rd port, finally enter compressor 1, iterative cycles like this.Refrigerant absorbs the heat of air in heat exchanger 4, under the mechanism of compressor 1, releases heat, change the heat of hot blast into from condenser 2 and evaporimeter 7 (subcooler); Whole source pump uses inverse Carnot cycle principle, heating agent (refrigerant) is made to produce physical phase transition (liquid-vapor-liquid state) by heat pump acting, utilize in reciprocation cycle phase transition process and uninterruptedly absorb heat and put thermal property, the heat in low-temperature heat source air is drawn by heat exchanger 4, the continuous heat release in cold air by condenser 2 and evaporimeter 7 (subcooler), makes cold air be warmed up to high-temperature hot air gradually.Under this pattern, evaporimeter 7, as subcooler, can improve degree of supercooling, reduces the evaporating temperature of heat exchanger 4, makes heat exchanger 4 draw the more heat energy of outside air, greatly improve the heating capacity of unit.
Dehumidify heating mode at a slow speed: controller 8 controls cross valve 3 power-off, outer blower fan 5 power-off, the first port conducting second port, the 3rd port conducting the 4th port.Refrigerant, under the piston action of compressor 1, is compressed into low temperature low pressure gas the gas of HTHP; High temperature and high pressure gas is cooled into liquid after entering condenser 2, thus releases large calorimetric, and cold air absorbs its heat and temperature constantly rises and becomes high-temperature hot air.Refrigerant is by after condenser 2, and enter in heat exchanger 4 through cross valve 3 first port and the second port, now, heat exchanger 4, as subcooler, can improve degree of supercooling; Then refrigerant enters in evaporimeter 7 through choke valve 6 and evaporates, and absorbs the heat in outer unit environment; Again through cross valve 3 the 4th port, cross valve 3 the 3rd port, finally enter compressor 1, iterative cycles like this.Refrigerant absorbs the heat of air in the evaporator 7, under the mechanism of compressor, releases heat, change the heat of hot blast into from condenser 2 and heat exchanger 4 (subcooler); Whole source pump uses inverse Carnot cycle principle, heating agent (refrigerant) is made to produce physical phase transition (liquid-vapor-liquid state) by heat pump acting, utilize in reciprocation cycle phase transition process and uninterruptedly absorb heat and put thermal property, the heat in low-temperature heat source air is drawn by evaporimeter 7, the continuous heat release in cold air by condenser 2 and heat exchanger 4 (subcooler), makes cold air be warmed up to high-temperature hot air gradually.Under this pattern, heat exchanger 4, as subcooler, can improve the degree of supercooling of refrigeration system, reduces the evaporating temperature of evaporimeter 7, makes evaporimeter 7 draw the more heat energy of outside air, greatly improve the heating capacity of unit.
When unit starts to dry, be in the pattern of being rapidly heated.After the temperature in roasting plant reaches design temperature, unit is just in the heating mode at a slow speed that dehumidifies.Dehumidifying at a slow speed in heating mode, when the temperature in roasting plant is higher than design temperature, controller 8 starts outer blower fan 5, after cold wind enters outer unit from air intake vent 15, enter in external environment from outer blower fan 5 after heat exchanger 4, thus heat is dispersed in external environment go, cause the temperature in roasting plant to reduce.When the temperature in roasting plant is lower than design temperature, controller 8 cuts out outer blower fan 5, and unit gets back to the heating mode at a slow speed that dehumidifies.By the opening and closing of outer blower fan 5, can temperature in fine adjustment roasting plant, make it be in temperature constant state.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) the utility model blower setting is between heat regenerator cold side and condenser, and initiatively heat regenerator cold side hot blast is out blowed to condenser and air outlet, heat exchange efficiency is higher.
(2) the utility model is by the opening and closing of outer blower fan, can temperature in fine adjustment roasting plant, make it be in temperature constant state, without the need to arranging and opening hydrofuge and fresh wind port, solve the heat dissipation capacity that existing adjustment temperature manner brings large, be difficult to accurate temperature controlling and bring the problems such as moisture.
(3) the utility model adopts cross valve, and circuit is simple, and it is convenient to control.Control the energising of cross valve and power-off by controller, realize the pattern that is rapidly heated and the control of the heating mode two kinds of patterns at a slow speed of dehumidifying; Whether control the work of outer blower fan by controller, realize the fine adjustment of temperature in roasting plant.
Only as described above, be only the preferred embodiment of the utility model, when can not limit the scope of the utility model enforcement with this, namely generally according to equivalence change simple done by the content described in the utility model claim and utility model description and modification, all still belong within the utility model claim scope.In addition, summary part and title are only used to the use of auxiliary patent document search, are not used for the interest field of restriction the utility model.
Claims (9)
1. a Novel dehumidifying heat pump drying unit, is characterized in that, comprises refrigerant flow process and drying medium flow process;
Described refrigerant flow process comprises compressor, condenser, cross valve, heat exchanger, the outer blower fan providing cold wind for heat exchanger, choke valve, evaporimeter and controller, described compressor outlet connects condenser and cross valve first port successively, cross valve second port connects heat exchanger, choke valve, evaporimeter and cross valve the 4th port successively, and cross valve the 3rd port connects suction port of compressor; Described controller respectively with cross valve, exogenous wind mechatronics; When cross valve is energized, the first port conducting the 4th port, the second port conducting the 3rd port; When cross valve power-off, the first port conducting second port, the 3rd port conducting the 4th port;
Described drying medium flow process comprises return air inlet, heat regenerator, evaporimeter, pressure fan, condenser and air outlet; Described return air inlet is connected with the hot side of heat regenerator; The hot side of described heat regenerator is connected with evaporimeter by airduct; Described evaporimeter airduct is out connected with heat regenerator cold side; Described heat regenerator cold side airduct is out connected with condenser and air outlet by pressure fan successively;
Described unit comprises indoor units and outdoor unit, and described return air inlet, heat regenerator, evaporimeter, pressure fan, condenser and air outlet are arranged at indoor units; Described heat exchanger and outer blower fan are arranged at outdoor unit, and described outdoor unit is also provided with air intake vent.
2. a kind of Novel dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described cross valve the 3rd is provided with gas-liquid separator between port and suction port of compressor, be provided with inner disc copper pipe in described gas-liquid separator, described inner disc copper pipe two ends connect condensator outlet and cross valve first port respectively.
3. a kind of Novel dehumidifying heat pump drying unit according to claim 1, is characterized in that, be provided with fluid reservoir between described choke valve and heat exchanger.
4. a kind of Novel dehumidifying heat pump drying unit according to claim 3, it is characterized in that, the import and export of described choke valve are respectively equipped with device for drying and filtering.
5. a kind of Novel dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described return air inlet communicates with the inside of roasting plant, is convenient to the cold wind of the inside of roasting plant to send into the hot side of heat regenerator.
6. a kind of Novel dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described condenser is pipe type heat exchanger.
7. a kind of Novel dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described evaporimeter is pipe type heat exchanger.
8. a kind of Novel dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described choke valve is heating power expansion valve or electric expansion valve.
9. a kind of Novel dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described return air inlet is provided with screen pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739063.9U CN205048943U (en) | 2015-09-23 | 2015-09-23 | Novel dehumidifying heat pump drying unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739063.9U CN205048943U (en) | 2015-09-23 | 2015-09-23 | Novel dehumidifying heat pump drying unit |
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| CN205048943U true CN205048943U (en) | 2016-02-24 |
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| CN201520739063.9U Active CN205048943U (en) | 2015-09-23 | 2015-09-23 | Novel dehumidifying heat pump drying unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895698A (en) * | 2017-04-01 | 2017-06-27 | 苏州末尘节能科技有限公司 | Efficient closed loop dehumidification drying machine |
| CN107490283A (en) * | 2017-08-09 | 2017-12-19 | 江苏科技大学 | The recovery type heat temperature adjustment heat pump drying device and its operation method that can be rapidly heated |
-
2015
- 2015-09-23 CN CN201520739063.9U patent/CN205048943U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895698A (en) * | 2017-04-01 | 2017-06-27 | 苏州末尘节能科技有限公司 | Efficient closed loop dehumidification drying machine |
| CN107490283A (en) * | 2017-08-09 | 2017-12-19 | 江苏科技大学 | The recovery type heat temperature adjustment heat pump drying device and its operation method that can be rapidly heated |
| CN107490283B (en) * | 2017-08-09 | 2019-09-03 | 江苏科技大学 | The recovery type heat temperature adjustment heat pump drying device and its operation method that can be rapidly heated |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180509 Address after: 510000 self compiled B District 105, new Ji Avenue, Panyu District new town, Panyu District, Guangzhou, Guangdong. Patentee after: Guangzhou hot lotus Energy Technology Co., Ltd. Address before: 411100 No. 1, unit 1, No. 9, new village, Yuhu District, Xiangtan, Hunan, China. Patentee before: Liu Xiaoming |