CN203785138U - Two temperature radiation room air conditioner capable of processing fresh air - Google Patents

Two temperature radiation room air conditioner capable of processing fresh air Download PDF

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Publication number
CN203785138U
CN203785138U CN201420033877.6U CN201420033877U CN203785138U CN 203785138 U CN203785138 U CN 203785138U CN 201420033877 U CN201420033877 U CN 201420033877U CN 203785138 U CN203785138 U CN 203785138U
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China
Prior art keywords
new wind
temperature
outlet
compressor
expansion valve
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Expired - Fee Related
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CN201420033877.6U
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Chinese (zh)
Inventor
赵蕾
赵锡锦
胡安都
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Priority to CN201420033877.6U priority Critical patent/CN203785138U/en
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Abstract

The utility model relates to a two temperature radiation room air conditioner capable of processing fresh air. The two temperature radiation room air conditioner comprises a compressor, wherein an outlet of the compressor is connected with an inlet of a condenser, an outlet pipeline of the condenser is respectively connected with a metal radiation plate and an induction fresh air processor through an expansion valve I and an expansion valve II, which are connected in parallel after passing through a heat returner, an outlet of the metal radiation plate and an outlet of the induction fresh air processor are respectively connected with two inlets of an injector, and an outlet pipeline of the injector is connected to an inlet of the compressor through the heat returner. By adopting the two temperature radiation room air conditioner, the air suction pressure of the compressor can be increased, the refrigeration under two evaporation temperatures is realized by utilizing a single compressor, the evaporation temperature of the radiation plate which is used as an evaporator is high, the refrigerating coefficient of the system can be improved, an energy-saving effect is realized, the secondary heat loss problem caused by adopting cold water as refrigerant of the radiation air conditioner can be avoided, the indoor air quality is also improved, and the application range of the air conditioner system with temperature and humidity being independently controlled is enlarged.

Description

A kind of two temperature radiation room air conditioners of processing new wind
Technical field
The utility model 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 accreditation, 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 is conventionally taking cold water as medium, and the heat convection by it in pipe reduces the temperature of radiating surface.For remaining the wetting in decontamination chamber, the cold water that temperature is lower just must be provided, 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 of the humiture processing of all water system to 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 purpose of this utility model is to provide a kind of two temperature radiation room air conditioners of processing new wind, under the effect of single compressor, after throttling, provide two kinds of different evaporating temperatures respectively by two expansion valves, meet the demand of humiture autonomous control system for 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, cause the problem of the obvious wind sense of indoor existence for improving conventional air conditioner, 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 adopted in the utility model 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 connection metal radiant panel 4 and the new wind processors 5 of induction type respectively 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 is the metallic plate of top with thin metal pipe, can be installed on indoor suspended ceiling, wall or ground, and the evaporating temperature of controlling metal radiant panel 4 inner refrigerants is (15-16) ± 0.5 DEG C, make the temperature on radiant panel surface in 18 DEG C~20 DEG C
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 control evaporating temperature in metal radiant panel 4 to ensure the dew-point temperature of metallic plate surface temperature higher than 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 by the nozzle 16 of return air in new wind ejection induction room after processing, wherein new wind sprays from air outlet 11, 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 DEG C, 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 induction type new wind processor 5.
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 that injector 6 exports in regenerator 7, make condenser 2 export cold-producing medium and obtain certain degree of supercooling and improve to help refrigerating capacity, make injector 6 export cold-producing medium obtain certain overheated to ensure 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 beneficial effects of the utility model are:
1) the utility model 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, have better comfortableness and indoor air quality with respect to traditional air-conditioning.
3) radiation air-conditioner utilizes cold-producing medium directly not have the problem of second heat loss as refrigerant, utilizes cold water energy-conservation as refrigerant than traditional air-conditioning.Calculate by theory, this system utilizes the 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 through fin-tube heat exchanger processing, 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 of the new wind processor of induction type processing 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.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of the new wind processor of the utility model induction type.
Detailed description of the invention
Describe embodiment of the present utility model in detail below in conjunction with drawings and Examples.
As shown in Figure 1, the two warm radiation room air conditioners of the utility model, 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 connection metal radiant panel 4 and the new wind processors 5 of induction type respectively 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 the metallic plate of top with 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 regulating by metal radiant panel 4 and convection current and the 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 DEG C (middle temperature), transmits by heat, makes the temperature on radiant panel surface in 18 DEG C~20 DEG C, 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 by 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 dehumidification processing, and by nozzle 16 spray and induction room in return air.New wind sprays from air outlet 11, 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 DEG C (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 send into indoorly from air outlet 11, 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 that injector 6 exports in regenerator 7, make condenser 2 export cold-producing medium and obtain certain degree of supercooling and improve to help refrigerating capacity, make injector 6 export cold-producing medium and obtain certain sending into compressor 1 to ensure 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 induction type new wind processor 5.The outlet of 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 controls evaporating temperature in metal radiant panel 4 dew-point temperature higher than room conditioning design parameter.Reach altogether two kinds of reducing pressure by regulating flow effects.
Workflow of the present utility model and principle are:
With reference to Fig. 1, compressor 1 does work to cold-producing medium; Compressor 1 outlet is fixed with condenser 2 entrances, and cold-producing medium heat release in condenser 2 is condensed; It is fixed with expansion valve one 3a, expansion valve two 3b entrances respectively after regenerator 7 heat exchange that condenser 2 exports cold-producing medium; After in regenerator 7, cold-producing medium is crossed cold heat exchange, a point 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 the evaporating temperature of controlling fin-tube heat exchanger 14 in induction type new wind processor 5 can reach the object of the cool-down dehumidification to new wind.Metal radiant panel 4 exports, the new wind processor 5 of induction type exports fixed with two entrances of injector 6 respectively, the metal radiant panel 4 of middle temperature exports the cold-producing medium cold-producing medium that after step-down speed-raising, the new wind processor 5 of induction type of injection low temperature exports in injector 6, 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 that injector 6 exports is overheated after regenerator 7 heat absorption, 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, move downward from fresh wind port 9, 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 indoor, when in the too low situation that can not meet human comfort of wind pushing temperature, can induction room in return air through air inlet 10 after newly wind mixes, reach after suitable wind pushing temperature, send into indoor from air outlet 11; Solidifying water pond 12 is set, to discharging after the condensed water centralized collection forming on fin-tube heat exchanger surface 14 in fin-tube heat exchanger 14 bottoms.
During the utility model 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 that use humiture to control respectively.And avoid 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.Propose novel two warm air-conditioners of form by air processor and metal radiant panel with and mixed refrigeration systems accordingly, and by contrasting operation conditions and the performance of the air-conditioner of tradition with new wind and this pair of warm air-conditioner, 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 utility model 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 domain of the present utility model.

Claims (5)

1. can process two temperature radiation room air conditioners of new wind for one kind, 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) connection metal radiant panel (4) and the new wind processor of induction type (5) respectively 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, 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 ensure the dew-point temperature of metallic plate surface temperature higher than room conditioning design parameter.
3. 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 by the nozzle (16) of return air in new wind ejection induction room after processing, wherein new wind sprays from air outlet (11), indoor return air enters from return air inlet (10).
4. two warm radiation room air conditioners according to claim 3, it 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 solidifying water comb (13).
5. according to two warm radiation room air conditioners described in claim 3 or 4, 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 control the evaporating temperature of cold-producing medium in the fin-tube heat exchanger (14) in the new wind processor of induction type (5).
CN201420033877.6U 2014-01-20 2014-01-20 Two temperature radiation room air conditioner capable of processing fresh air Expired - Fee Related CN203785138U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743020A (en) * 2014-01-20 2014-04-23 西安建筑科技大学 Dual-temperature radiation household air-conditioner capable of processing fresh air
CN108302731A (en) * 2018-02-24 2018-07-20 佛山市知而行信息科技有限公司 A kind of control method of fan coil supply air system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743020A (en) * 2014-01-20 2014-04-23 西安建筑科技大学 Dual-temperature radiation household air-conditioner capable of processing fresh air
CN103743020B (en) * 2014-01-20 2016-03-02 西安建筑科技大学 A kind of two temperature radiation room air conditioners processing new wind
CN108302731A (en) * 2018-02-24 2018-07-20 佛山市知而行信息科技有限公司 A kind of control method of fan coil supply air system

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140820

Termination date: 20170120

CF01 Termination of patent right due to non-payment of annual fee