CN203132034U - High-accuracy constant-temperature and constant-humidity air conditioning device for laboratory - Google Patents

High-accuracy constant-temperature and constant-humidity air conditioning device for laboratory Download PDF

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Publication number
CN203132034U
CN203132034U CN 201320143214 CN201320143214U CN203132034U CN 203132034 U CN203132034 U CN 203132034U CN 201320143214 CN201320143214 CN 201320143214 CN 201320143214 U CN201320143214 U CN 201320143214U CN 203132034 U CN203132034 U CN 203132034U
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CN
China
Prior art keywords
air
laboratory
temperature
aircondition
treatment
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CN 201320143214
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Chinese (zh)
Inventor
张和平
徐育标
林思远
陈旭新
曾海杰
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广东冠华机电工程有限公司
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Priority to CN 201320143214 priority Critical patent/CN203132034U/en
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Publication of CN203132034U publication Critical patent/CN203132034U/en

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    • Y02B30/547

Abstract

The utility model relates to a high-accuracy constant-temperature and constant-humidity air conditioning device for a laboratory. The air conditioning device comprises an air-cooled water chilling unit and an air processing section, wherein the air-cooled water chilling unit is arranged on the ground outdoors and comprises compressors, an air-cooled condenser, a throttle valve and a shell-and-tube type evaporator, and the air processing section consists of a filter, a surface cooler, a heater, a humidifier and an air blower which are arranged sequentially; an output end of the shell-and-tube type evaporator is in circulating connection with a primary end of a plate-type heat exchanger through a chilled water pipeline and a primary chilled water pump; and a secondary end of the plate-type heat exchanger is in circulating connection with an input end of the surface cooler through the chilled water pipeline, a secondary chilled water pump and an electric three-way valve, and an air outlet and an air inlet of the air processing section are respectively connected with an air supplying pipeline and an air returning pipeline of the laboratory so as to form air circulation. According to the air conditioning device, the small-temperature-difference air supplying can be realized due to the adoption of a twice water chilling system, so that the air conditioning device has the advantages of fine-adjustable cold (heat) quantity and stable supply air temperature, and can meet the requirements of the laboratory on the high accuracy of temperature and humidity.

Description

A kind of laboratory high-accuracy and constant constant temperature and humidity aircondition

Technical field

The utility model relates to a kind of laboratory high-accuracy and constant constant temperature and humidity aircondition.Mainly be applicable to temperature, the high all kinds of laboratories of humidity requirement.

Background technology

Present domestic laboratory refrigeration and air-conditioning technical commonly used is that air-cooled cabinet type thermostatic and humidistatic air conditioning unit group+airduct send, the system form of return air.This system is because compressor cold regulating power is limited, supply air temperature difference is big, the start and stop of compressor are big to system interference, temperature, the higher laboratory of humidity required precision are difficult to reach requirement, influenced normally carrying out of experimental work, perhaps because the humiture precision does not reach and influences experimental result, caused economic loss to country.

Summary of the invention

The purpose of this utility model is to overcome the weak point of existing aircondition, and a kind of laboratory high-accuracy and constant constant temperature and humidity aircondition is provided.

The realization of the utility model purpose, be that unit+plate type heat exchanger+air processing machine+terminal Fine adjustment knob+airduct send the employing wind-cooled cold-water, the system of return air, for satisfying the high-precision requirement in laboratory, the air supply mode of the little temperature difference is adopted in design, and system conditions is stable.

The utility model, adopt the secondary chilled water system, comprise wind-cooled cold-water unit and air-treatment section, described wind-cooled cold-water unit is arranged on the outdoor ground, described wind-cooled cold-water unit comprises compressor, air-cooled condenser, choke valve and shell and tube evaporator, and described air-treatment section is made of the filter that sets gradually, surface cooler, heater, humidifier and pressure fan; The output of shell and tube evaporator is connected with the primary side circulation of plate type heat exchanger with a chilled water pump by cold water pipes; The secondary end of plate type heat exchanger is connected with the input circulation of surface cooler by cold water pipes, secondary chilled water pump and electric T-shaped valve, and the air outlet of air-treatment section is connected with return air duct with the air supply duct in laboratory respectively with air inlet, forms air circulation.

The utility model between the air supply duct in the air outlet of air-treatment section and laboratory, is provided with terminal Fine adjustment knob.

The utility model, described humidifier are electric heat type humidifier, and described heater is electric heater or hot-water heater.

The utility model is provided with new wind introducing port at the intake stack of air-treatment section.

The utility model, summer, the wind-cooled cold-water unit was produced 7~12 ℃ of cold water, was converted to 16~18 ℃ of cold water to plate type heat exchanger, to the air processing machine surface cooler air was lowered the temperature (dehumidifying), and cold air after treatment is sent in the laboratory.Heat (electric heat type humidifier humidification) by electric heater in the air processing machine or hot water to air winter, and hot-air after treatment is sent in the laboratory.When the temperature accuracy in laboratory did not reach designing requirement, the fine tune temperature joint device work that is installed in the air supply duct end finely tuned to reach the parameter of designing requirement.

The control of laboratory humidity, summer, winter was by the electrodeless humidification of electric heat type humidifier by the surface cooler cool-down dehumidification.

The utility model, high accuracy experiment chamber design temperature is 20 ± 0.02 ℃, relative humidity is 50 ± 2%.Enclosed structure adopts the thick polyurethane freezer of 100mm plate.Require the outdoor cover room of establishing of high accuracy experiment, its design temperature is 20 ± 0.2 ℃, and relative humidity is 50 ± 5%.Enclosed structure adopts the thick polyurethane freezer of 100mm plate.

The utility model adopts the secondary chilled water system, can realize little temperature difference air-supply, have cold (heat) but the amount accurate adjustment, the advantage that wind pushing temperature is stable can satisfy the laboratory to temperature, the high-precision requirement of humidity.

Description of drawings

Fig. 1 is the structure principle chart of embodiment.

Among the figure: A, wind-cooled cold-water unit; B, air-treatment section; C, a chilled water pump; D, plate type heat exchanger; E, secondary chilled water pump; F, electric heat type humidifier; G, terminal Fine adjustment knob; H, electric T-shaped valve; 1, compressor; 2, air-cooled condenser; 3, choke valve; 4, shell and tube evaporator; 5, filter; 6, surface cooler; 7, electricity (hot water) heater; 8, humidifier; 9, pressure fan; 10, laboratory; 11, laboratory inner room; 12, polyurethane freezer plate; 13, air supply duct; 14, return air duct; 15, air outlet; 16, intake stack; 17, new wind introducing port.

The specific embodiment

With reference to Fig. 1, a kind of laboratory high-accuracy and constant constant temperature and humidity aircondition, adopt the secondary chilled water system, comprise wind-cooled cold-water unit A and air-treatment section B, described wind-cooled cold-water unit A is arranged on the outdoor ground, described wind-cooled cold-water unit A comprises compressor 1, air-cooled condenser 2, choke valve 3 and shell and tube evaporator 4, and described air-treatment section B is made of the filter 5 that sets gradually, surface cooler 6, heater 7, humidifier 8 and pressure fan 9; The output of shell and tube evaporator 4 is connected with the primary side circulation of plate type heat exchanger D with a chilled water pump C by cold water pipes; The secondary end of plate type heat exchanger D is connected with the input circulation of surface cooler 6 by cold water pipes, secondary chilled water pump E and electric T-shaped valve H, the air outlet 15 of air-treatment section B is connected with return air duct 14 with the air supply duct 13 in laboratory 10 respectively with air inlet 16, forms air circulation.Between the air supply duct 13 in the air outlet 15 of air-treatment section B and laboratory, be provided with terminal Fine adjustment knob G.Described humidifier 8 is electric heat type humidifier F, and described heater 7 is electric heater or hot-water heater.Intake stack 16 at air-treatment section B is provided with new wind introducing port 17.The described laboratory 10 of present embodiment is provided with laboratory inner room 11.Laboratory 10 and laboratory inner room 11 enclosed structures adopt the thick polyurethane freezer plate 12 of 100mm.

Present embodiment cold-producing medium flow process is as follows: cooling condition: compressor 1 is discharged high-temperature high-pressure refrigerant gas → air-cooled condenser 2 → condensed high-temperature high-pressure refrigerant liquid → choke valve 3, low-temperature low-pressure refrigerant liquid → shell and tube evaporator 4 after the throttling, refrigerant liquid after the heat absorption becomes gas, and to enter compressor 1 air-breathing, finishes a kind of refrigeration cycle.Heating condition: the laboratory heat-producing device is more, and most of times are based on refrigeration cool-down, during as if the need heating, by electric heater or hot water heating.

Present embodiment water system flow process is as follows: wind-cooled cold-water unit A produces 7~12 ℃ of cold water, by chilled water pump → plate type heat exchanger D(16~18 ℃) → secondary chilled water pump E → electric T-shaped valve H → air processing machine B, finish a cold water circulation.

Present embodiment wind system flow process is as follows: the air in the laboratory enters return air duct by return air inlet, with enter the air-treatment section after outdoor new wind mixes, after filtration, surface cooler, heater, air-treatments such as humidifier are delivered to indoorly by pressure fan, air supply duct, air outlet, reach the purpose of summer refrigeration (dehumidifying), winter heating's (humidification).

The mode of blowing on the orifice plate is adopted in air-supply, and return air adopts the mode of return air under floor return air or at least two face walls.

Claims (7)

1. laboratory high-accuracy and constant constant temperature and humidity aircondition, it is characterized in that: adopt the secondary chilled water system, comprise wind-cooled cold-water unit (A) and air-treatment section (B), described wind-cooled cold-water unit (A) is arranged on the outdoor ground, described wind-cooled cold-water unit (A) comprises compressor (1), air-cooled condenser (2), choke valve (3) and shell and tube evaporator (4), and described air-treatment section (B) is made of the filter that sets gradually (5), surface cooler (6), heater (7), humidifier (8) and pressure fan (9); The output of shell and tube evaporator (4) is connected with the primary side circulation of plate type heat exchanger (D) with a chilled water pump (C) by cold water pipes; The secondary end of plate type heat exchanger (D) is connected with the input circulation of surface cooler (6) by cold water pipes, secondary chilled water pump (E) and electric T-shaped valve (H), the air outlet (15) of air-treatment section (B) is connected with return air duct (14) with the air supply duct (13) of laboratory (10) respectively with air inlet (16), forms air circulation.
2. aircondition according to claim 1 is characterized in that: between the air supply duct (13) in the air outlet (15) of air-treatment section (B) and laboratory, be provided with terminal Fine adjustment knob (G).
3. aircondition according to claim 1 and 2, it is characterized in that: described humidifier (8) is electric heat type humidifier (F), and described heater (7) is electric heater or hot-water heater.
4. aircondition according to claim 1, it is characterized in that: the intake stack (16) at air-treatment section (B) is provided with new wind introducing port (17).
5. aircondition according to claim 3, it is characterized in that: described laboratory (10) are provided with laboratory inner room (11).
6. aircondition according to claim 4, it is characterized in that: described laboratory (10) are provided with laboratory inner room (11).
7. according to claim 5 or 6 described airconditions, it is characterized in that: described laboratory (10) and laboratory inner room (11) enclosed structure adopt the thick polyurethane freezer plate (12) of 100mm.
CN 201320143214 2013-03-26 2013-03-26 High-accuracy constant-temperature and constant-humidity air conditioning device for laboratory CN203132034U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320143214 CN203132034U (en) 2013-03-26 2013-03-26 High-accuracy constant-temperature and constant-humidity air conditioning device for laboratory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320143214 CN203132034U (en) 2013-03-26 2013-03-26 High-accuracy constant-temperature and constant-humidity air conditioning device for laboratory

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CN203132034U true CN203132034U (en) 2013-08-14

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103557558A (en) * 2013-10-28 2014-02-05 杭州上岛电器有限公司 Falling film constant temperature and humidity system
CN104132408A (en) * 2014-07-09 2014-11-05 西安工程大学 System used for controlling evaporative cooling temperature and evaporative cooling humidity independently and applied to variable-frequency machine room of power plant
CN105202716A (en) * 2015-11-02 2015-12-30 中国科学技术大学地球与空间科学学院 MC-ICP-MS (multi-collector inductively-coupled plasma mass spectrometry) laboratory temperature control system and application method thereof
CN105485870A (en) * 2015-12-31 2016-04-13 中国中元国际工程有限公司 Condensation heat recovery, dehumidification and reheating system and central air conditioning system with same
CN104390318B (en) * 2014-09-30 2017-01-11 杭州悦居环境设备有限公司 Constant temperature, humidity and oxygen air-conditioning system
CN106642779A (en) * 2016-09-28 2017-05-10 东南大学 High-precision temperature and humidity control refrigerating system and method for laboratory
CN107543281A (en) * 2017-07-31 2018-01-05 广东美的暖通设备有限公司 Temperature and humidity regulation method, system and air conditioner

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103557558A (en) * 2013-10-28 2014-02-05 杭州上岛电器有限公司 Falling film constant temperature and humidity system
CN104132408A (en) * 2014-07-09 2014-11-05 西安工程大学 System used for controlling evaporative cooling temperature and evaporative cooling humidity independently and applied to variable-frequency machine room of power plant
CN104132408B (en) * 2014-07-09 2017-02-22 西安工程大学 System used for controlling evaporative cooling temperature and evaporative cooling humidity independently and applied to variable-frequency machine room of power plant
CN104390318B (en) * 2014-09-30 2017-01-11 杭州悦居环境设备有限公司 Constant temperature, humidity and oxygen air-conditioning system
CN105202716A (en) * 2015-11-02 2015-12-30 中国科学技术大学地球与空间科学学院 MC-ICP-MS (multi-collector inductively-coupled plasma mass spectrometry) laboratory temperature control system and application method thereof
CN105202716B (en) * 2015-11-02 2017-08-22 中国科学技术大学地球与空间科学学院 MC ICP MS laboratory temperatures control systems and its application method
CN105485870A (en) * 2015-12-31 2016-04-13 中国中元国际工程有限公司 Condensation heat recovery, dehumidification and reheating system and central air conditioning system with same
CN105485870B (en) * 2015-12-31 2018-11-27 中国中元国际工程有限公司 Recovering condensing heat dehumidifying reheat system and the central air conditioner system using it
CN106642779A (en) * 2016-09-28 2017-05-10 东南大学 High-precision temperature and humidity control refrigerating system and method for laboratory
CN106642779B (en) * 2016-09-28 2019-04-09 东南大学 A kind of high-accuracy temperature-humidity control refrigeration system and its method for laboratory
CN107543281A (en) * 2017-07-31 2018-01-05 广东美的暖通设备有限公司 Temperature and humidity regulation method, system and air conditioner
CN107543281B (en) * 2017-07-31 2020-04-17 广东美的暖通设备有限公司 Temperature and humidity regulation and control method and system and air conditioner

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Granted publication date: 20130814

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