CN103743020A - Dual-temperature radiation household air-conditioner capable of processing fresh air - Google Patents
Dual-temperature radiation household air-conditioner capable of processing fresh air Download PDFInfo
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- CN103743020A CN103743020A CN201410024100.8A CN201410024100A CN103743020A CN 103743020 A CN103743020 A CN 103743020A CN 201410024100 A CN201410024100 A CN 201410024100A CN 103743020 A CN103743020 A CN 103743020A
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Abstract
A dual-temperature radiation household air-conditioner capable of processing fresh air comprises a compressor, wherein an outlet of the compressor is connected with an inlet of a condenser. The outlet pipelines of the condenser are connected with a mental radiation plate and a guiding-type fresh air processor respectively by a first expansion valve and a second expansion valve through a heat regenerator, wherein both inlets of an ejector are respectively connected with the outlet of the mental radiation plate and the outlet of the guiding-type fresh air processor. The outlet pipelines of the ejector are connected with the inlet of the condenser through the heat regenerator. The dual-temperature radiation household air-conditioner is capable of increasing the inlet pressure of the condenser to enable a single condenser to achieve the cooling at two evaporating temperatures, wherein the evaporating temperature of the mental radiation plate which is used as an evaporator is relatively high, thereby being good for improving refrigeration coefficients to achieve the energy-saving effect, avoiding the problem of the secondary heat loss caused by using cold water as refrigerants of radiation air-conditioners, improving indoor air quality and expanding the range of application of air-conditioner systems with independent control of temperature and humidity.
Description
Technical field
The invention belongs to field of heating ventilation air conditioning, particularly a kind of two temperature radiation room air conditioners of processing new wind.
Background technology
The utilization rate of current radiation air-conditioner improves.For northern area, the comfortableness of radiant heating also more and more obtains people's approval, and radiation cooling also obtains people's concern gradually simultaneously, and special in a line city of China, radiation cooling is also developing rapidly.Under summer condition, conventionally in the familiar radiant panel of people, refrigerating medium (being generally water) temperature can not be too low, and radiant panel surface temperature, lower than the dew-point temperature of environment, condensation trouble just easily occurs.
With traditional air-conditioning by contrast, radiation air-conditioner uniformity of temperature profile, indoor comfort is strong, consumes energy low, if be combined with VMC, indoor air quality can be greatly improved; Existing cold emission air-conditioning system be take cold water conventionally as medium, and the heat convection by it in pipe reduces the temperature of radiating surface.Remaining wetting in decontamination chamber, just must provide the cold water that temperature is lower, and in order to produce low-temperature cold water, the evaporating temperature of required kind of refrigeration cycle is lower, and the COP of refrigeration system is lower; And under traditional radiation air-conditioner, in the process that all water system is processed the humiture of air, low-temperature cold water, by metal tube and plate and room air and wall heat exchange, causes the indirect waste of the energy; Also there is the secondary heat exchange loss of cryogen and water heat exchange in traditional radiation air-conditioner on the other hand, and the performance of whole system also has improved space.Tradition air-conditioning is lower through the air themperature of cool-down dehumidification, and supply air temperature difference is crossed conference and caused the blowing a cold wind over sense of human body and cause uncomfortable.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of two temperature radiation room air conditioners of processing new wind, under the effect of single compressor, by two expansion valves, after throttling, provide two kinds of different evaporating temperatures respectively, meet humiture autonomous control system for the demand of low-temperature receiver, can be expressed as middle temperature evaporimeter and cryogenic vaporizer; Wherein, the cold-producing medium of the middle temperature evaporimeter cold-producing medium that injection flows out from cryogenic vaporizer in injector, after mixing, diffusion slows down through the saturated refrigerant liquid heat exchange of regenerator and condensator outlet, is sucked after reaching the suitable degree of superheat by compressor, can make suction pressure of compressor increase.This system is independently controlled by using single compressor to realize humiture, and can reduce energy consumption; Secondly, be the second heat loss problem of avoiding radiation air-conditioner to utilize cold water to cause as refrigerant, in this system utilization, cryogenic vaporizer directly regulates indoor environment as end; Finally, for improving conventional air conditioner, cause the problem of the obvious wind sense of indoor existence, in conjunction with independent fresh air disposal, improve indoor air quality, expanded the scope of application of the air-conditioning system that humiture independently controls.
To achieve these goals, the technical solution used in the present invention is:
A kind of two temperature radiation room air conditioners of processing new wind, comprise compressor 1, the outlet of compressor 1 connects the entrance of condenser 2, the export pipeline of condenser 2 passes through expansion valve one 3a in parallel and expansion valve two 3b difference connection metal radiant panel 4 and the new wind processors 5 of induction type after regenerator 7, the outlet of the outlet of metal radiant panel 4, the new wind processor 5 of induction type connects respectively two entrances of injector 6, and the export pipeline of injector 6 is connected to the entrance of compressor 1 after regenerator 7.
The new wind processor 5 of metal radiant panel 4 and induction type is installed in parallel according to designing requirement.Wherein, described metal radiant panel 4 be top with the metallic plate of thin metal pipe, can be installed on indoor suspended ceiling, wall or ground, the evaporating temperature of controlling metal radiant panel 4 inner refrigerants is (15-16) ± 0.5 ℃, make the temperature on radiant panel surface in 18 ℃～20 ℃
The outlet of described metal radiant panel 4 is provided with the temp-sensing element that meets expansion valve one 3a, according to the aperture of outlet coolant temperature control expansion valve one 3a collecting, and then the evaporating temperature in control metal radiant panel 4 is to guarantee that metallic plate surface temperature is higher than the dew-point temperature of room conditioning design parameter.
The new wind processor 5 of described induction type with horizontal or vertical be installed on indoor, fresh wind port 9 is set on it, in fresh wind port 9, be provided for the fan 15 that new wind pressurization is imported, inside is provided for that the new wind importing is carried out to the fin-tube heat exchanger 14 of cool-down dehumidification processing and for the nozzle 16 of return air in new wind ejection induction room after processing, wherein new wind is from air outlet 11 ejections, and indoor return air enters from return air inlet 10.
Described fin-tube heat exchanger 14 belows are provided with solidifying water pond 12, and solidifying water pond 12 picks out the new wind processor of induction type 5 outsides by solidifying water comb 13.
The evaporating temperature of controlling cold-producing medium in described fin-tube heat exchanger 14 is 5 ± 0.5 ℃, with to new wind cool-down dehumidification.
The outlet of the new wind processor 5 of described induction type is provided with the temp-sensing element that meets expansion valve two 3b, according to the aperture of outlet coolant temperature control expansion valve two 3b that collect, and then control the evaporating temperature of cold-producing medium in the fin-tube heat exchanger 14 in the new wind processor 5 of induction type.
Described injector 6 comprises nozzle, injection mixing section and diffuser, go out the cold-producing medium of metal radiant panel 4 after nozzle step-down speed-raising, injection goes out the cold-producing medium of the new wind processor 5 of induction type, the two isobaric diffusion again that mixes afterwards, after regenerator 7 is overheated, return to again reciprocation cycle work in compressor 1, thereby improve the pressure of inspiration(Pi) of compressor 1.
Described condenser 2 outlets are carried out the isobaric heat exchange of noncontact with the cold-producing medium of injector 6 outlets in regenerator 7, make condenser 2 outlet cold-producing mediums obtain certain degree of supercooling and improve to help refrigerating capacity, injector 6 outlet cold-producing mediums are obtained certain overheated to guarantee compressor safe operation.
The cold-producing medium that the new wind processor 5 of described metal radiant panel 4 and induction type uses is cold-producing medium R22.
Compared with prior art, the invention has the beneficial effects as follows:
1) the present invention utilizes a compressor can realize two kinds of refrigeration under evaporating temperature, and wherein radiation cold plate is higher as the evaporating temperature of evaporimeter, is conducive to improve the coefficient of refrigerating performance of system, reaches energy-conservation effect.
2) adopt radiant panel and independent new wind shared indoor load, with respect to traditional air-conditioning, have better comfortableness and indoor air quality.
3) radiation air-conditioner utilizes cold-producing medium directly as refrigerant, not have the problem of second heat loss, than traditional air-conditioning, utilizes cold water energy-conservation as refrigerant.By theory, calculate, this system utilizes Energy Efficiency Ratio that R22 is cold-producing medium summer to improve 16.0% with respect to the Energy Efficiency Ratio of traditional air-conditioning, and energy-saving effect is obvious.
4) adopt the new wind processor of induction type can reduce supply air temperature difference, new wind is first processed through fin-tube heat exchanger, then after mixing with indoor return air, sends into indoor, supply air temperature difference reduces, the sense of blowing a cold wind over of air-supply weakens, and noise reduces, and indoor comfort improves than the comfortableness in traditional air conditioning chamber.
5) air quantity that the new wind processor of induction type is processed reduces, and the area of the new wind processor of induction type inner fins pipe heat exchanger can dwindle, and the new wind processor of induction type volume will reduce.
6) system adopts single compressor, after two expansion valve throttlings, obtains different evaporating pressures, is respectively different evaporating temperatures in radiant panel, fin-tube heat exchanger, meets the low-temperature receiver requirement that room humiture is independently controlled.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the new wind processor of induction type of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, describe embodiments of the present invention in detail.
As shown in Figure 1, the two warm radiation room air conditioners of the present invention, a kind of two temperature radiation room air conditioners of processing new wind, comprise compressor 1, the outlet of compressor 1 connects the entrance of condenser 2, the export pipeline of condenser 2 passes through expansion valve one 3a in parallel and expansion valve two 3b difference connection metal radiant panel 4 and the new wind processors 5 of induction type after regenerator 7, the outlet of the outlet of metal radiant panel 4, the new wind processor 5 of induction type connects respectively two entrances of injector 6, and the export pipeline of injector 6 is connected to the entrance of compressor 1 after regenerator 7.The new wind processor 5 of metal radiant panel 4 and induction type is installed in parallel according to designing requirement.
Wherein, metal radiant panel 4 is that top is with the metallic plate of thin metal pipe, can be installed on indoor suspended ceiling, wall or ground, metal radiant panel flow media is cold-producing medium R22, cold-producing medium evaporates boiling therein, the function by metal radiant panel 4 with convection current and the adjusting of radiation effects performance room temperature of room air and wall thereof.Metal radiant panel 4 can be regarded middle temperature evaporimeter as, and its evaporating pressure is higher.The evaporating temperature of controlling metal radiant panel 4 inner refrigerants is (15-16) ± 0.5 ℃ (middle temperature), by heat, transmits, and makes the temperature on radiant panel surface in 18 ℃～20 ℃, and the surface temperature of radiant panel is higher than the dew-point temperature of room conditioning design parameter.
As shown in Figure 2, the new wind processor 5 of induction type with horizontal or vertical be installed on indoor, fresh wind port 9 is set on it, in fresh wind port 9, be provided for the fan 15 that new wind pressurization is imported, inside is provided for that the new wind importing is carried out to the fin-tube heat exchanger 14 of cool-down dehumidification processing and for the nozzle 16 of return air in new wind ejection induction room after processing, new wind enters in the new wind processor 5 of induction type after fan 15 pressurizations, by fin-tube heat exchanger 14 cool-down dehumidifications, processed, and by return air in nozzle 16 ejections induction room.New wind is from air outlet 11 ejections, and indoor return air enters from return air inlet 10.Flow media in fin-tube heat exchanger is cold-producing medium R22, and fin-tube heat exchanger 14 is cryogenic vaporizer, and its evaporating pressure is lower, and controlling the wherein evaporating temperature of cold-producing medium is 5 ± 0.5 ℃ (low temperature), can carry out cool-down dehumidification to new wind.New distinguished and admirable through nozzle 16 and induce room air to enter the new wind processor 5 of induction type from return air inlet 10, mix with new wind after treatment, then from air outlet 11, send into indoorly, room air is played to the regulating action of cool-down dehumidification.Fin-tube heat exchanger 14 belows are provided with solidifying water pond 12, and solidifying water pond 12 picks out the new wind processor of induction type 5 outsides by solidifying water comb 13, thereby condensed water is discharged.
Injector 6 comprises nozzle, injection mixing section and diffuser, go out the cold-producing medium of metal radiant panel 4 after nozzle step-down speed-raising, injection goes out the cold-producing medium of the new wind processor 5 of induction type, the two isobaric diffusion again that mixes afterwards, after regenerator 7 is overheated, return to again reciprocation cycle work in compressor 1, thereby improve the pressure of inspiration(Pi) of compressor 1.
Condenser 2 outlets are carried out the isobaric heat exchange of noncontact with the cold-producing medium of injector 6 outlets in regenerator 7, make condenser 2 outlet cold-producing mediums obtain certain degree of supercooling and improve to help refrigerating capacity, make injector 6 outlet cold-producing mediums obtain certain sending into compressor 1 to guarantee the safe operation of compressor 1 after overheated.
Simultaneously, the outlet of the new wind processor 5 of induction type is provided with the temp-sensing element that meets expansion valve two 3b, according to the aperture of outlet coolant temperature control expansion valve two 3b that collect, and then control the evaporating temperature of cold-producing medium in the fin-tube heat exchanger 14 in the new wind processor 5 of induction type.The outlet of metal radiant panel 4 is provided with the temp-sensing element that meets expansion valve one 3a, and according to the aperture of outlet coolant temperature control expansion valve one 3a collecting, and then the evaporating temperature in control metal radiant panel 4 is higher than the dew-point temperature of room conditioning design parameter.Reach altogether two kinds of reducing pressure by regulating flow effects.
Workflow of the present invention and principle are:
With reference to Fig. 1,1 pair of cold-producing medium acting of compressor; Compressor 1 outlet is fixed with condenser 2 entrances, and cold-producing medium heat release in condenser 2 is condensed; Condenser 2 outlet cold-producing mediums are fixed with expansion valve one 3a, expansion valve two 3b entrances respectively after regenerator 7 heat exchange; After in regenerator 7, cold-producing medium is crossed cold heat exchange, a minute two-way enters respectively in expansion valve one 3a and expansion valve two 3b, and cold-producing medium is reducing pressure by regulating flow after expansion valve.Expansion valve one 3a outlet is fixed with metal radiant panel 4 entrances, the cold-producing medium of medium temperature and medium pressure (saturation pressure that middle temperature is corresponding) gasifies in metal radiant panel 4, flow of refrigerant is avoided the secondary heat exchange loss that adopts water to produce as medium in metal radiant panel 4, can improve the evaporating temperature in radiant panel, on the other hand, temperature-sensing element based on being arranged on radiant panel exit is controlled the aperture of expansion valve one 3a, thereby the evaporating temperature in control radiant panel is so that its surface temperature, higher than the dew-point temperature of room conditioning design parameter, is avoided radiant panel surface sweating.Expansion valve two 3b outlets are fixed with new wind processor 5 entrances of induction type, low-temp low-pressure (saturation pressure that low temperature is corresponding) cold-producing medium gasifies to outdoor new wind cool-down dehumidification in fin-tube heat exchanger 14, after mixing with indoor return air, send into room 8, on the other hand, temperature-sensing element based on being arranged on new wind processor 5 refrigerant outlets of induction type is controlled the aperture of expansion valve two 3b, thereby in the new wind processor 5 of control induction type, the evaporating temperature of fin-tube heat exchanger 14 can reach the object to the cool-down dehumidification of new wind.Metal radiant panel 4 outlets, the new wind processor 5 of induction type export fixed with two entrances of injector 6 respectively, the metal radiant panel 4 outlet cold-producing mediums cold-producing medium that after step-down speed-raising, the new wind processor 5 of the induction type of injection low temperature exports in injector 6 of middle temperature, the two mixes afterwards and diffusion flows out from injector 6, wherein the pressure after diffusion can be different and slightly change with service condition, always but higher than the pressure of traditional air-conditioning; The cold-producing medium of injector 6 outlet is overheated after regenerator 7 heat absorptions, through entering compressor 1 with the entrance of the fixed compressor 1 of regenerator 7, completes a kind of refrigeration cycle.
With reference to Fig. 2, new wind is entered in the new wind processor 5 of induction type by fresh wind port 9, new wind was depressed in adding of fan 15, from fresh wind port 9, move downward, airflow passes fin-tube heat exchanger 14 carries out heat exchange, what in fin-tube heat exchanger 14 pipes, flow is low-temperature low-pressure refrigerant, and it carries out cool-down dehumidification to outdoor new wind; New wind after treatment, under the effect of nozzle 16, send into indoorly, when wind pushing temperature is too low, can not meet in the situation of human comfort, can induction room in return air through air inlet 10 after newly wind mixes, reach after suitable wind pushing temperature, from air outlet 11, send into indoor; Solidifying water pond 12 is set, to discharging after formed condensed water centralized collection on fin-tube heat exchanger surface 14 in fin-tube heat exchanger 14 bottoms.
During the present invention can meet under the operating mode of single compressor simultaneously, the radiant panel of warm evaporimeter and the persuader of cryogenic vaporizer are processed the humiture of indoor environment, are equivalent to the two cover autonomous systems of using humiture to control respectively.And avoided secondary heat exchange loss, improved energy utilization rate; Under the effect of the new wind processor of induction type, reduce supply air temperature difference and improve human sense of comfort.Proposition is comprised of air processor and metal radiant panel novel two warm air-conditioners with and corresponding mixed refrigeration systems, and by contrasting tradition with the air-conditioner of new wind and the operation conditions of this pair of warm air-conditioner and performance, show that two temperature air-conditioners have improved 16% compared with the theoretical kind of refrigeration cycle coefficient of refrigerating performance of conventional air conditioner when resh air requirement and indoor moisture dispersed amount are when less.
In the above-described embodiments, canonical process of the present invention is described, those skilled in the art can carry out various improvement and distortion on the basis of above-mentioned principle, and these changes and distortion drop in protection scope of the present invention.
Claims (10)
1. the two temperature radiation room air conditioners that can process new wind, comprise compressor (1), the outlet of compressor (1) connects the entrance of condenser (2), it is characterized in that, the export pipeline of condenser (2) passes through expansion valve one (3a) in parallel and expansion valve two (3b) difference connection metal radiant panel (4) and the new wind processor of induction type (5) after regenerator (7), the outlet of metal radiant panel (4), the outlet of the new wind processor of induction type (5) connects respectively two entrances of injector (6), the export pipeline of injector (6) is connected to the entrance of compressor (1) after regenerator (7).
2. two warm radiation room air conditioners according to claim 1, it is characterized in that, described metal radiant panel (4) is that top is with the metallic plate of thin metal pipe, be installed on indoor suspended ceiling, wall or ground, the evaporating temperature of controlling metal radiant panel (4) inner refrigerant is (15-16) ± 0.5 ℃, makes the temperature on radiant panel surface in 18 ℃～20 ℃.
3. two warm radiation room air conditioners according to claim 1, it is characterized in that, the outlet of described metal radiant panel (4) is provided with the temp-sensing element that meets expansion valve one (3a), according to the aperture of the outlet coolant temperature control expansion valve one (3a) collecting, and then control the interior evaporating temperature of metal radiant panel (4) to guarantee that metallic plate surface temperature is higher than the dew-point temperature of room conditioning design parameter.
4. two warm radiation room air conditioners according to claim 1, it is characterized in that, the new wind processor of described induction type (5) with horizontal or vertical be installed on indoor, fresh wind port (9) is set on it, in fresh wind port (9), be provided for the fan (15) that new wind pressurization is imported, inside is provided for that the new wind importing is carried out to the fin-tube heat exchanger (14) of cool-down dehumidification processing and for the nozzle (16) of return air in new wind ejection induction room after processing, wherein new wind is from air outlet (11) ejection, and indoor return air enters from return air inlet (10).
5. two warm radiation room air conditioners according to claim 4, is characterized in that, described fin-tube heat exchanger (14) below is provided with solidifying water pond (12), and solidifying water pond (12) picks out the new wind processor of induction type (5) outside by coagulating water comb (13).
6. according to two warm radiation room air conditioners described in claim 4 or 5, it is characterized in that, the evaporating temperature of controlling cold-producing medium in described fin-tube heat exchanger (14) is 5 ± 0.5 ℃, with to new wind cool-down dehumidification.
7. according to two warm radiation room air conditioners described in claim 4 or 5, it is characterized in that, the outlet of the new wind processor of described induction type (5) is provided with the temp-sensing element that meets expansion valve two (3b), according to the aperture of the outlet coolant temperature control expansion valve two (3b) collecting, and then the evaporating temperature of the middle cold-producing medium of the fin-tube heat exchanger (14) in the control new wind processor of induction type (5).
8. two warm radiation room air conditioners according to claim 1, it is characterized in that, described injector (6) comprises nozzle, injection mixing section and diffuser, go out the cold-producing medium of metal radiant panel (4) after nozzle step-down speed-raising, injection goes out the cold-producing medium of the new wind processor of induction type (5), and the two isobaric diffusion again that mixes afterwards, after regenerator (7) is overheated, return to again reciprocation cycle work in compressor (1), thereby improve the pressure of inspiration(Pi) of compressor (1).
9. two warm radiation room air conditioners according to claim 1, it is characterized in that, described condenser (2) outlet is carried out the isobaric heat exchange of noncontact with the cold-producing medium of injector (6) outlet in regenerator (7), make condenser (2) outlet cold-producing medium obtain certain degree of supercooling and improve to help refrigerating capacity, injector (6) outlet cold-producing medium is obtained certain overheated to guarantee compressor safe operation.
10. two warm radiation room air conditioners according to claim 1, is characterized in that, the cold-producing medium of the new wind processor of described metal radiant panel (4) and induction type (5) use is cold-producing medium R22.
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| WO2018046026A1 (en) * | 2016-09-12 | 2018-03-15 | 青岛海信日立空调系统有限公司 | Air conditioning heat pump system which uses injector, air conditioner, and air conditioner control method |
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| CN110081539A (en) * | 2019-03-29 | 2019-08-02 | 太原理工大学 | A kind of air-conditioning system of the efficient coupled convective and radiative heat transfer for data center computer room |
| CN110332619A (en) * | 2019-07-01 | 2019-10-15 | 江苏盖德冷冻机有限公司 | A kind of air-conditioning condenser energy-saving control device and its control method |
| CN115751532A (en) * | 2022-11-21 | 2023-03-07 | 珠海格力电器股份有限公司 | Capillary network radiation air conditioning system and control method thereof |
| CN115751532B (en) * | 2022-11-21 | 2024-07-26 | 珠海格力电器股份有限公司 | Capillary network radiation air conditioning system and control method thereof |
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