CN204358909U - A kind of temperature and humidity regulation system being applicable to air-conditioner enthalpy difference experiment - Google Patents
A kind of temperature and humidity regulation system being applicable to air-conditioner enthalpy difference experiment Download PDFInfo
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- CN204358909U CN204358909U CN201420694205.XU CN201420694205U CN204358909U CN 204358909 U CN204358909 U CN 204358909U CN 201420694205 U CN201420694205 U CN 201420694205U CN 204358909 U CN204358909 U CN 204358909U
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Abstract
The utility model discloses a kind of temperature and humidity regulation system being applicable to air-conditioner enthalpy difference experiment, comprise refrigeration plant, electric heating tube, humidifier and temperature and humidity control device; Temperature and humidity control device comprises temperature sensor, humidity sensor, temperature controller, humidity controller, power regulating eqiupment, steam two-port valve, is operated in the hot gas bypass valve that aperture is inversely proportional to opening control signal mode of operation and the signal selector exported as opening control signal for relatively large person in gating two direct-flow input signals.The utility model by introducing hot gas bypass valve in refrigeration plant, and with signal selector using an opening control signal as hot gas bypass valve larger in the refrigeration control signal of temperature controller and humidity controller, the automatic adjustment of refrigeration plant cold input is achieved with this, save the energy, and manually arrange cold classification without the need to operating personnel to drop into, operating personnel are required low, reduce operating personnel's working strength.
Description
Technical field
The utility model relates to a kind of temperature and humidity regulation system being applicable to air-conditioner enthalpy difference experiment.
Background technology
Air-conditioning enthalpy difference laboratory is a kind of checkout gear of room air conditioner, is the important tests equipment that room air conditioner is designed and developed.It adopts air enthalpy method to measure air-conditioner refrigeration, heating capacity, and can carry out various working condition tests.Air enthalpy difference test is a kind of test method measuring air-conditioner refrigeration, heating capacity, and it is measured the air supply parameter of air-conditioner, return air parameter and air circulation, by the ability of the product determination air-conditioner of the air quantity measured and air-supply, return air enthalpy difference.
Concrete way is, tested air-conditioner is placed in air-conditioner enthalpy difference experiment room and runs, air-conditioner enthalpy difference experiment room is placed with the air reprocessing unit including heater and humidifier, and unit makes the air themperature in room by processes such as heating, humidification, cooling, dehumidifying, humidity environment operating mode reaches desired value and it is stable to keep.On this basis the various parameters of air-conditioner are measured, and calculate result of the test.Usual way places some cold for room to provide fixing cold, and the heater placing a power adjustable carries out temperature adjustment, and the humidifier placing a power adjustable carries out appropriateness adjustment.
As Fig. 1 shows the Automatic adjustment method to air-conditioner enthalpy difference experiment room temperature humidity in prior art, temperature and moisture sensors detects the real-time working condition temperature and humidity of air-conditioner enthalpy difference chamber, temperature and humidity controller receives the real-time working condition temperature and humidity detected, based on the deviation of this real-time working condition temperature and humidity and target operating condition temperature and humidity, produce the temperature and humidity control signal being used for control heater and humidifier power output percentage, temperature control signals inputs a power regulating eqiupment, this power regulating eqiupment regulates the power output of adjustable electric heater, humidity control signal input steam two-port valve, regulate the steam flow in input room, thus achieve the adjustment of adjustable electric heater and adjustable humidification internal room real-time working condition temperature and humidity.
The Automatic adjustment method of the air-conditioner enthalpy difference experiment room temperature humidity shown in Fig. 1 has the following disadvantages: first because laboratory's cold drops into fixing, can only by regulating the heat of input and adding temperature and the humidity that moisture regulates laboratory, under some experimental enviroment, because cold input is excessive, just and moisture must be added come " eating " and fall excessive cold with excessive heat, cause the waste of the energy.Secondly laboratory's cold drops into and is generally divided into the cold classification of multiple stage different capabilities to drop into, operator is needed by virtue of experience and to estimating of operating condition of test manually to select, if select unaccommodated cold capacity that cold can be caused to waste, even do not reach target operating condition, require higher to operator.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of temperature and humidity regulation system being applicable to air-conditioner enthalpy difference experiment.
Solve the problems of the technologies described above, the technical scheme that the utility model adopts is as follows:
Be applicable to a temperature and humidity regulation system for air-conditioner enthalpy difference experiment, comprise refrigeration plant, electric heating tube, humidifier and temperature and humidity control device, described refrigeration plant is provided with compressor, and is communicated with oil eliminator, condenser, expansion valve, evaporimeter and gas-liquid separator successively between the exhaust outlet of this compressor to air entry, described temperature and humidity control device comprises temperature sensor, humidity sensor, temperature controller, humidity controller, power regulating eqiupment and steam two-port valve, described temperature controller and humidity controller are both-end output type controller, described temperature sensor is electrically connected with the input of temperature controller, described humidity sensor is electrically connected with the input of humidity controller, the import of the outlet steam two-port valve of described humidifier, it is characterized in that: described temperature and humidity control device also comprises and is operated in the hot gas bypass valve that aperture is inversely proportional to opening control signal mode of operation and the signal selector exported as opening control signal for relatively large person in gating two direct-flow input signals, described hot gas bypass valve is communicated with between the outlet and the import of gas-liquid separator of oil eliminator, described temperature controller heat that control signal output is electrically connected with the control end of electric heating tube by power regulating eqiupment, refrigeration control signal output part is electrically connected with one of them input of signal selector, described humidity controller heat that control signal output is electrically connected with the control end of steam two-port valve, refrigeration control signal output part is electrically connected with another input of signal selector, the output of described signal selector is electrically connected with the control end of hot gas bypass valve.
As preferred embodiment of the present utility model, described temperature controller and the model of humidity controller are UT55A-201, and the model of described signal selector is M2SES-2AA-R/N.
As preferred embodiment of the present utility model, the model of described temperature sensor and humidity sensor is M3LR-R4/A.
Compared with prior art, the utility model has following beneficial effect:
First, the utility model by introducing hot gas bypass valve in refrigeration plant, and with signal selector using an opening control signal as hot gas bypass valve larger in the refrigeration control signal of temperature controller and humidity controller, the automatic adjustment of refrigeration plant cold input is achieved with this, fully excessive cold can be dropped in temperature-fall period, reach the object of fast cooling, the input of cold is then farthest reduced in temperature-rise period, reduce test period, thus unnecessary the adding heat and add moisture of the system that decreases, save the energy, and manually arrange cold classification without the need to operating personnel to drop into, operating personnel are required low, reduce operating personnel's working strength.
Second, the utility model can carry out transforming based on existing air-conditioner enthalpy difference experiment temperature and humidity regulation system and implement, it is without the need to again writing control software design, only needs the equipment cost increasing hot gas bypass valve and signal selector, has transformation difficulty and the low advantage of implementation cost.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the theory diagram of the temperature and humidity control device being applicable to air-conditioner enthalpy difference experiment in prior art;
Fig. 2 is the systematic schematic diagram of refrigeration plant in the utility model;
Fig. 3 is the theory diagram of temperature and humidity control device in the utility model;
Fig. 4 is the circuit theory diagrams of temperature and humidity control device in the utility model.
Detailed description of the invention
As shown in Figures 2 to 4, the temperature and humidity regulation system being applicable to air-conditioner enthalpy difference experiment of the present utility model, comprises refrigeration plant, electric heating tube, humidifier and temperature and humidity control device.Refrigeration plant is provided with compressor MC1, and is communicated with oil eliminator OS1, condenser CON1, expansion valve TEV1, evaporimeter EVA1 and gas-liquid separator LS1 successively between the exhaust outlet of this compressor MC1 to air entry.
Temperature and humidity control device of the present utility model comprises temperature sensor 1BT1, humidity sensor 1BT2, temperature controller 1TIC1, humidity controller 1TIC2, power regulating eqiupment, steam two-port valve, be operated in the hot gas bypass valve HGBR1 that aperture is inversely proportional to opening control signal mode of operation and the signal selector 1WBM1 exported as opening control signal for relatively large person in gating two direct-flow input signals, temperature controller 1TIC1 and humidity controller 1TIC2 is the both-end output type controller according to cold and hot pid algorithm work, the output signal of temperature controller 1TIC1 and humidity controller 1TIC2 should be d. c. voltage signal or be DC current signal.Wherein, temperature sensor, humidity sensor, temperature controller, humidity controller and each power regulating eqiupment, heater, humidifier, signal selector all can select model conventional in existing air-conditioner enthalpy difference experiment room.The utility model preferably adopts model to be temperature sensor 1BT1 and the humidity sensor 1BT2 of M3LR-R4/A, and preferably employing model is the temperature controller 1TIC1 of UT55A-201, model is the humidity controller 1TIC2 of UT55A-201, model is the signal selector 1WBM1 of M2SES-2AA-R/N, this temperature controller 1TIC1 and humidity controller 1TIC2 all has and heats refrigeration control pattern, it is the device being usually used in Temperature and Humidity Control in controller enthalpy difference experiment, therefore temperature and humidity regulation system of the present utility model does not need again to write the cold and hot pid algorithm of these two controllers.
Temperature sensor 1BT1 is electrically connected with the input of temperature controller 1TIC1, humidity sensor 1BT2 is electrically connected with the input of humidity controller 1TIC2, temperature sensor 1BT1 and humidity sensor 1BT2 is respectively used to receive the resistance signal that the RTD that is arranged on scene, air-conditioner enthalpy difference experiment room is passed back, and the voltage signal converting thereof into standard sends temperature controller 1TIC1 and humidity controller 1TIC2 to.Temperature controller 1TIC1 heats control signal output 1TIC1 ± be electrically connected with the control end of electric heating tube by power regulating eqiupment, thus is dropped into by the heat that adds regulating the power output of adjustable electric heater to control air-conditioner enthalpy difference experiment room; The import of the outlet steam two-port valve of humidifier, the control signal output 2TIC1 ± with the control end of steam two-port valve of heating of humidity controller 1TIC2 is electrically connected thus is dropped into by the moisture that adds that the quantity of steam that steam regulation two-port valve exports controls air-conditioner enthalpy difference experiment room.Hot gas bypass valve HGBR1 is communicated with between the outlet and the import of gas-liquid separator LS1 of oil eliminator OS1, the refrigeration control signal output part 1TIC1A of temperature controller 1TIC1 ± be electrically connected with one of them input of signal selector 1WBM1, the refrigeration control signal output part 1TIC2A of humidity controller 1TIC2 ± be electrically connected with another input of signal selector 1WBM1, the output 1T1 of signal selector 1WBM1 ± be electrically connected with the control end of hot gas bypass valve HGBR1, thus by controlling the aperture of hot gas bypass valve HGBR1, a part of compressor air-discharging is made to be immediate by-pass to compressor air suction end without condenser and evaporimeter, drop into the cold that this controls enthalpy difference experiment room, and the inverse ratio proportionate relationship of the aperture of hot gas bypass valve HGBR1 and opening control signal can be regulated in air-conditioner enthalpy difference experiment as required by experimenter.Wherein, the cold and hot pid algorithm that control signal, refrigeration control signal all carry according to them that heats of said temperature controller 1TIC1 and humidity controller 1TIC2 calculates.
The control table optimum configurations table of temperature controller and humidity controller sees table:
The utility model does not limit to and above-mentioned detailed description of the invention; according to foregoing; according to ordinary technical knowledge and the customary means of this area; do not departing under the utility model above-mentioned basic fundamental thought prerequisite; the utility model can also make the equivalent modifications of other various ways, replacement or change, all drops among protection domain of the present utility model.The data acquisition and controlling simultaneously realizing temperature and humidity as selected conventional Temperature Humidity Sensor, temperature and humidity controller; or wet bulb temperature sensor selected by humidity sensor; or replace steam two-port valve with electric moistening device and power regulating eqiupment; or replace hot gas bypass valve to carry out cold by frequency conversion cold and drop into adjustment, all within the utility model rights protection scope.
Claims (3)
1. be applicable to a temperature and humidity regulation system for air-conditioner enthalpy difference experiment, comprise refrigeration plant, electric heating tube, humidifier and temperature and humidity control device, described refrigeration plant is provided with compressor (MC1), and is communicated with oil eliminator (OS1), condenser (CON1), expansion valve (TEV1), evaporimeter (EVA1) and gas-liquid separator (LS1) between the exhaust outlet of this compressor (MC1) to air entry successively, described temperature and humidity control device comprises temperature sensor (1BT1), humidity sensor (1BT2), temperature controller (1TIC1), humidity controller (1TIC2), power regulating eqiupment and steam two-port valve, described temperature controller (1TIC1) and humidity controller (1TIC2) are both-end output type controller, described temperature sensor (1BT1) is electrically connected with the input of temperature controller (1TIC1), described humidity sensor (1BT2) is electrically connected with the input of humidity controller (1TIC2), the import of the outlet steam two-port valve of described humidifier, it is characterized in that: described temperature and humidity control device also comprises and is operated in the hot gas bypass valve (HGBR1) that aperture is inversely proportional to opening control signal mode of operation and the signal selector (1WBM1) exported as opening control signal for relatively large person in gating two direct-flow input signals, described hot gas bypass valve (HGBR1) is communicated with between the outlet and the import of gas-liquid separator (LS1) of oil eliminator (OS1), the control signal output that heats of described temperature controller (1TIC1) is electrically connected with the control end of electric heating tube by power regulating eqiupment, refrigeration control signal output part is electrically connected with one of them input of signal selector (1WBM1), the control signal output that heats of described humidity controller (1TIC2) is electrically connected with the control end of steam two-port valve, refrigeration control signal output part is electrically connected with another input of signal selector (1WBM1), the output of described signal selector (1WBM1) is electrically connected with the control end of hot gas bypass valve (HGBR1).
2. temperature and humidity regulation system according to claim 1, it is characterized in that: described temperature controller (1TIC1) and the model of humidity controller (1TIC2) are UT55A-201, and the model of described signal selector (1WBM1) is M2SES-2AA-R/N.
3. temperature and humidity regulation system according to claim 1 and 2, is characterized in that: the model of described temperature sensor (1BT1) and humidity sensor (1BT2) is M3LR-R4/A.
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| CN201420694205.XU CN204358909U (en) | 2014-11-18 | 2014-11-18 | A kind of temperature and humidity regulation system being applicable to air-conditioner enthalpy difference experiment |
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| CN201420694205.XU CN204358909U (en) | 2014-11-18 | 2014-11-18 | A kind of temperature and humidity regulation system being applicable to air-conditioner enthalpy difference experiment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367954A (en) * | 2017-08-28 | 2017-11-21 | 苏州工业职业技术学院 | A kind of intelligent domestic environment parameter control system based on Arduino |
| CN109126908A (en) * | 2018-08-30 | 2019-01-04 | 江苏拓米洛环境试验设备有限公司 | Electric expansion valve temperature and humidity control system |
| CN113970453A (en) * | 2021-10-26 | 2022-01-25 | 中国矿业大学 | Heat and moisture exchange performance testing device of large enthalpy difference cooling equipment in heat damage mine mining area |
-
2014
- 2014-11-18 CN CN201420694205.XU patent/CN204358909U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367954A (en) * | 2017-08-28 | 2017-11-21 | 苏州工业职业技术学院 | A kind of intelligent domestic environment parameter control system based on Arduino |
| CN109126908A (en) * | 2018-08-30 | 2019-01-04 | 江苏拓米洛环境试验设备有限公司 | Electric expansion valve temperature and humidity control system |
| CN113970453A (en) * | 2021-10-26 | 2022-01-25 | 中国矿业大学 | Heat and moisture exchange performance testing device of large enthalpy difference cooling equipment in heat damage mine mining area |
| CN113970453B (en) * | 2021-10-26 | 2023-09-26 | 中国矿业大学 | Heat-moisture exchange performance testing device of large enthalpy difference cooling equipment in heat damage mine mining area |
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| C14 | Grant of patent or utility model | ||
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Address after: 510302 No. 204 Xingang West Road, Haizhu District, Guangzhou City, Guangdong Province Patentee after: China Electrical Appliance Research Institute Co., Ltd. Address before: 510302 No. 204 West Xingang Road, Guangdong, Guangzhou Patentee before: China National Electric Apparatus Research Institute Co., Ltd. |
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| CP03 | Change of name, title or address |