CN215808983U

CN215808983U - Air treatment cabinet and enthalpy difference laboratory

Info

Publication number: CN215808983U
Application number: CN202121848416.0U
Authority: CN
Inventors: 赵晓博; 赵华军; 王明成; 胡平; 张风; 臧必俊
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Wuhu Electric Appliances Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Wuhu Electric Appliances Co Ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-11
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses an air treatment cabinet and an enthalpy difference laboratory, wherein the air treatment cabinet comprises a dehumidification cavity and a heating cavity, a cooler is arranged in the dehumidification cavity, and the cooler is used for cooling and drying air flowing through the dehumidification cavity; the temperature-raising cavity is communicated with the dehumidifying cavity, and a main heating assembly is arranged in the dehumidifying cavity and used for heating dry cold air; the main heating assembly is provided with an open circuit alarm device, and the open circuit alarm device is used for detecting the open circuit state of the main heating assembly and giving an alarm to the open circuit state of the main heating assembly. According to the air processing cabinet, the open circuit alarm device is arranged, the open circuit condition of the main heating component in the cabinet body is monitored, and detection is not required by opening the cabinet.

Description

Air treatment cabinet and enthalpy difference laboratory

Technical Field

The utility model belongs to the field of enthalpy difference experiments, and particularly relates to an air treatment cabinet and an enthalpy difference laboratory.

Background

The enthalpy difference test chamber consists of two rooms, one is an outdoor side and the other is an indoor side. The working principle of the enthalpy difference chamber is as follows: an ambient temperature meeting temperature and humidity standards is provided by an air treatment cabinet in a room.

The air processing cabinet comprises an air inlet, a front electric heating pipe, an evaporator, a bypass valve, a main heating fan, a circulating fan, a humidifying spray pipe and the like from bottom to top. Because the air conditioner capacity is directly through the air conditioner dry-wet bulb air-out difference in temperature and the laboratory dry-wet bulb air-in difference in temperature directly participate in the calculation, the outside ambient temperature can't be stable or the temperature field is inhomogeneous can directly influence the capability test in the laboratory. The laboratory temperature control is mainly finished by pre-heating and main heating, and the specific output is controlled by a UT (user input) meter. The electric heating device comprises an electric heating pipe, a front heating device, a circulating fan, a main heating device and a main heating device, wherein the electric heating pipe is controlled by UT to output electric heating pipes according to set temperature and actual environment temperature to stabilize the working condition temperature of the inner side and the outer side, the front heating device is generally arranged at an air inlet below an air treatment cabinet, the main heating pipe is generally arranged in the middle of an evaporator and the circulating fan, most of the heating devices are formed by connecting 220V-1.5KW electric heating pipes in series at present, the front heating device is arranged at the air inlet and positioned in front of the evaporator, and defrosting of the evaporator is accelerated under the working condition of testing low temperature. The general working condition temperature is set below 10 ℃, the front heating is started, and the main heating is started above 10 ℃; every air treatment cabinet has two circulation fans about to transmit the air after the dehumidification heating to the operating mode room, by the air-out of downside return air to the upside, carries out a circulation at the operating mode room.

However, due to the service life, the condition of damage and open circuit can occur in the use process of part of the electric heating pipes, so that the working condition temperature cannot be stable, and the condition of non-uniformity of the temperature field of the whole working condition chamber can occur after one electric heating pipe is opened, so that the temperature of the return air inlet of the external machine or the internal machine is directly non-uniform, and the accuracy of the experiment is seriously influenced; at present, the processing mode is that the air treatment cabinet is arranged to be disassembled manually at regular intervals to check the damaged electric heating pipe for replacement, and the processing is complicated.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air treatment cabinet and an enthalpy difference laboratory, which aim to solve the technical problem that the open circuit fault of an electric heating pipe is difficult to find in the background technology.

In order to achieve the purpose, the specific technical scheme of the air treatment cabinet and the enthalpy difference laboratory is as follows:

an air processing cabinet comprises a dehumidification cavity and a heating cavity, wherein a cooler is arranged in the dehumidification cavity and used for cooling and drying air flowing through the dehumidification cavity; the temperature-raising cavity is communicated with the dehumidifying cavity, and a main heating assembly is arranged in the dehumidifying cavity and used for heating dry cold air; the main heating assembly is provided with an open circuit alarm device, and the open circuit alarm device is used for detecting the open circuit state of the main heating assembly and giving an alarm to the open circuit state of the main heating assembly.

Further, the main heating assembly comprises electric heating pipes which are electrically connected with each other; the circuit breaking alarm device comprises a circuit breaker which is electrically connected to the electric heating pipe so as to detect the circuit breaking state of the electric heating pipe.

Further, the circuit breaker is electrically connected with a display, and the display is used for displaying the electric heating state of the main heating assembly.

Furthermore, the dehumidification cavity is communicated with an air inlet, a front heating assembly is arranged on the air inlet, and the front heating assembly is used for preheating air entering the air inlet.

Furthermore, the dehumidification cavity is positioned on the inner side of the wall surface provided with the air inlet.

Furthermore, the dehumidification cavity is communicated with an air supply opening, the air supply opening is provided with a bypass air valve, and the bypass air valve is used for controlling the opening and closing of the air supply opening.

Furthermore, the heating cavity is communicated with a driving cavity, a circulating fan is arranged in the driving cavity, and the circulating fan enables air to enter the heating cavity from the dehumidifying cavity.

Furthermore, the dehumidifying cavity is connected with a spray pipe and communicated with a humidifying cavity in the spray pipe, and a nozzle is arranged on the side wall of the spray pipe and sprays water mist to improve the humidity in the air.

Further, the temperature rising cavity is positioned on the upper side of the dehumidification cavity.

An enthalpy difference laboratory comprising an air treatment cabinet as described above.

The air treatment cabinet and the enthalpy difference laboratory have the following advantages: the air treatment cabinet heating pipe junction installation reminding device that opens circuit, if one of them heating pipe opens circuit the out-of-operation back reminding device that opens circuit can do not establish automatically and do not remind, can be convenient for in time change according to the quick discernment heating pipe position that opens circuit of alarm position.

Drawings

FIG. 1 is a front view of the air treatment cabinet of the present invention;

FIG. 2 is a schematic side view of the air treatment cabinet of the present invention;

fig. 3 is a schematic structural diagram of the disconnection warning device of the present invention.

The notation in the figure is:

1. a cabinet body; 11. an air inlet; 12. an air supply opening; 13. an air outlet; 2. a dehumidification chamber; 21. a cooler; 3. a temperature rising cavity; 31. a main heating assembly; 4. a drive chamber; 41. a circulating fan; 5. a humidification chamber; 51. a nozzle; 52. a nozzle; 6. a bypass air valve; 7. a front heating assembly; 8. a circuit breaking alarm device; 81. a circuit breaker; 82. an alarm.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, an air treatment cabinet and an enthalpy difference laboratory according to the present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the air processing cabinet of the present invention includes a cabinet body 1, the cabinet body 1 is formed with an air passing cavity, an air inlet 11 of the air passing cavity is formed on a side wall of a bottom end of the cabinet body 1, and an air outlet 12 of the air passing cavity is formed at a top end of the cabinet body 1, such that air enters from the air inlet 11, passes through the air processing cabinet along the air passing cavity, and is discharged from the air outlet 12.

In order to adjust the temperature of the air humidity of the outdoor unit, the air processing cabinet is provided with a humidity adjusting assembly and a temperature adjusting assembly in the air passing cavity. According to the difference that sets up the subassembly function, the chamber of crossing wind includes dehumidification chamber 2, intensification chamber 3 and the drive chamber 4 that communicate in proper order by upper reaches to low reaches.

Wherein the dehumidifying chamber 2 is located at the lower side of the cabinet body 1, a cooler 21 is arranged in the dehumidifying chamber 2, and the cooler 21 is used for cooling and drying the air flowing through the dehumidifying chamber 2. The dew point of the air is gradually reduced along with the reduction of the air temperature, so that the water in the air is analyzed, and the dehumidification effect is achieved. Typically, the cooler 21 is an evaporator of an air conditioning assembly. The air conditioning assembly, except the evaporator, further comprises a compressor, an expansion valve and a heat exchanger. In the evaporator, the low-temperature refrigerant is converted from a liquid state to a gaseous state and absorbs the temperature of the air flowing through the evaporator. Thereby disposing the evaporator in the air passing chamber to perform dehumidification. And other components of the air conditioning component are arranged outside the cabinet body 1 and are sequentially connected with other components through pipelines. Instead of using an evaporator as the cooler 21, the effect of semiconductor refrigeration may be used, as long as the air flowing through the dehumidifier can be cooled.

And the dehumidifying cavity 2 is positioned at the inner side of the wall surface of the cabinet body 1 provided with the air inlet 11, and the air inlet 11 is communicated with the dehumidifying cavity 2. In order to improve the dehumidification capacity, the dehumidification cavity 2 is also communicated with an air supply opening 13, the air supply opening 13 is positioned on the upper side of the air inlet 11 and is provided with a bypass air valve 6, and the bypass air valve 6 is used for controlling the opening and closing of the air supply opening 13. Therefore, when the humidity of the outside air is too high, the bypass air valve 6 can be opened, the air enters the dehumidification cavity 2 from the air inlet 11 and the air supplementing opening 13 simultaneously, the power of the evaporator can be correspondingly improved, the dehumidification capacity is improved, and the humidity of the outside environment is effectively reduced. And if the relative humidity standard of the external environment is smaller than the threshold value, the bypass air valve 6 can be closed, and only air is fed through the air inlet 11.

The air inlet 11 is also provided with a front heating assembly 7, and the front heating assembly 7 is used for preheating air entering the air inlet 11. The front heating component 7 is an electric heating tube which is electrically connected with each other. When the ambient temperature working condition temperature is set to be below 10 ℃, the electric heating pipe is started, so that the air temperature can be adjusted to a certain degree on one hand, and on the other hand, the evaporator can be defrosted, and the normal operation of the evaporator is ensured.

The upper side of the dehumidification cavity 2 is communicated with the warming cavity 3. The temperature rising chamber 3 is provided with a main heating unit 31, and the main heating unit 31 is used for heating dry cold air to raise the temperature of the cold air cooled by the cooler 21 to a set temperature, thereby adjusting the temperature.

The main heating component 31 comprises electric heating pipes which are electrically connected with each other, and the electric heating pipes are provided with a circuit breaking alarm device 8. The circuit-breaking alarm device 8 is used for detecting the circuit-breaking state of the electric heating pipe and giving an alarm to the circuit-breaking state of the electric heating pipe.

As shown in fig. 3, the electric heating pipes are generally connected in series. The circuit breaking alarm device 8 comprises circuit breakers 81 connected in parallel on the electric heating pipes, wherein the circuit breakers 81 are electrically connected with a control cabinet, and the control cabinet is electrically connected with a display. The display is used for displaying the electric heating state of the main heating assembly 31, and particularly, the display displays a schematic view of the colored main heating assembly 31. Typically, the path is green and the open circuit is reddish black. Namely, the display displays the green main heating component 31, the main heating component 31 is normal; the display shows reddish black's main heating element 31, then main heating element 31 opens circuit, needs the staff to open cabinet body 1, maintains main heating element 31.

Wherein, the concrete circuit structure of circuit breaker 81 is prior art, and this practicality is no longer repeated. In addition to the parallel circuit breakers 81, the series circuit breakers 81 may be provided, and the circuit breakers 81 may be provided in the heating circuit of the electric heating tube.

Besides the display is used as the alarm 82, a buzzer, an alarm lamp and the like are also used, and the description of the embodiment is omitted.

The electric heating pipes can also be connected in parallel, and the corresponding open circuit alarm device 8 can adopt a comparison circuit to carry out open circuit detection. Specifically, a current transformer is arranged in a circuit of each electric heating pipe, the output end of the current transformer is input to the input end of a comparator after being rectified by a bridge rectifier circuit and filtered by a capacitor, the output end of the comparator is output to a single state display circuit, the output ends of a plurality of comparators are also output to an alarm 82, a comparison reference end of the comparator is connected with the output end of a potentiometer, one end of the input end of the potentiometer is grounded, the other end of the potentiometer is connected with a power supply, the single state display circuit can display the working state of the electric heating pipe, and when any circuit of the electric heating pipe is broken, the alarm 82 gives an alarm.

In conclusion, through set up circuit breaker 81 in the cabinet body 1 to detect main heating element 31's the state of opening circuit, need not to dismantle cabinet body 1, it is simple convenient.

The upper side of the temperature rising cavity 3 is communicated with the driving cavity 4. The driving chamber 4 is provided with a circulating fan 41, and the circulating fan 41 generates negative pressure to make air enter from the air inlet 11 and discharge from the air outlet 12.

The top end of the cabinet body 1 is also provided with a spray pipe 51, a humidification cavity 5 is formed in the spray pipe 51, and the humidification cavity 5 is communicated with the dehumidification cavity 2 through a pipeline. The side wall of the spray pipe 51 is provided with a nozzle 52, and the nozzle 52 sprays water mist to improve the humidity in the air. And the air outlet 12 is arranged at the end of the humidifying pipe to discharge air.

The utility model also discloses an enthalpy difference laboratory which comprises an outer chamber and an inner chamber, wherein the inner chamber and the outer chamber are respectively provided with the air treatment cabinet, so that the temperature and the humidity of the two chambers meet the standard. In addition, temperature and humidity sampling systems and air flow measuring devices are further arranged in the two cavities so as to collect test data of the two cavities and perform subsequent data analysis.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. An air processing cabinet is characterized by comprising a dehumidification cavity and a heating cavity, wherein a cooler is arranged in the dehumidification cavity and used for cooling and drying air flowing through the dehumidification cavity; the temperature-raising cavity is communicated with the dehumidifying cavity, and a main heating assembly is arranged in the dehumidifying cavity and used for heating dry cold air; the main heating assembly is provided with an open circuit alarm device, and the open circuit alarm device is used for detecting the open circuit state of the main heating assembly and giving an alarm to the open circuit state of the main heating assembly.

2. An air treatment cabinet according to claim 1, wherein the primary heating assembly comprises electrically interconnected heating tubes; the circuit breaking alarm device comprises a circuit breaker which is electrically connected to the electric heating pipe so as to detect the circuit breaking state of the electric heating pipe.

3. An air treatment cabinet according to claim 2 wherein the circuit breaker is electrically connected to a display for displaying the open circuit condition of the primary heating assembly.

4. The air processing cabinet of claim 1, wherein the dehumidifying chamber is in communication with an air inlet, the air inlet being provided with a front heating assembly for preheating air entering the air inlet.

5. An air treatment cabinet according to claim 4, wherein the dehumidifying chamber is located inside the wall surface on which the air inlet is provided.

6. The air processing cabinet according to claim 4, wherein the dehumidification chamber is communicated with an air supply opening, and a bypass air valve is arranged at the air supply opening and used for controlling the opening and closing of the air supply opening.

7. An air processing cabinet according to claim 1, wherein the warming chamber is communicated with a driving chamber, and a circulating fan is arranged in the driving chamber, and the circulating fan makes air enter the warming chamber from the dehumidifying chamber.

8. An air treatment cabinet according to claim 1, wherein the dehumidifying chamber is connected to a nozzle and communicates with the humidifying chamber in the nozzle, and the nozzle is provided with a nozzle on a side wall thereof, and sprays water mist to increase humidity in the air.

9. An air-handling cabinet according to claim 1, wherein the warming chamber is located above the dehumidifying chamber.

10. An enthalpy difference laboratory comprising the air treatment cabinet of any one of claims 1-9.