CN110672503A

CN110672503A - Energy-saving environment-friendly programmable constant temperature and humidity testing machine

Info

Publication number: CN110672503A
Application number: CN201910929547.2A
Authority: CN
Inventors: 陈柏尧
Original assignee: DONGGUAN TAILI TEST EQUIPMENT Co Ltd
Current assignee: DONGGUAN TAILI TEST EQUIPMENT Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-01-10

Abstract

An energy-saving environment-friendly programmable constant temperature and humidity testing machine comprises a box body, and an air circulating device, a heating device, a humidifying device, a refrigerating device and a temperature adjusting device which are arranged in the box body; the improved temperature-regulating device is characterized in that a test chamber and an equipment chamber are arranged in the box body, the heating device, the humidifying device, the refrigerating device and the air circulating device are all arranged in the test chamber, the temperature regulating device comprises a loop device and a power pump connected to the loop device, normal-temperature gas or liquid is guided into the loop device by the power pump, and heat in the test chamber is taken out of the test chamber by the normal-temperature gas or liquid. The temperature in the test chamber is regulated and controlled by adding the temperature regulating device, so that the dew point temperature is increased, the dehumidification capacity is reduced, the high-temperature and high-humidity long-time test is realized, the loss of electric energy and water and the discharge amount of carbon dioxide by the heating device and the humidifying device are reduced, and the effects of energy conservation and environmental protection are achieved.

Description

Energy-saving environment-friendly programmable constant temperature and humidity testing machine

Technical Field

The invention relates to a test device, in particular to an energy-saving environment-friendly programmable constant temperature and humidity test machine.

Background

The environment testing machine is composed of heating, humidifying and refrigerating devices, and can adjust various conditions such as temperature, humidity and the like in a testing chamber into a state to be tested so as to be used for testing the temperature resistance and humidity resistance of a product in different environments. Among them, the conventional humidifying device of the testing machine is usually to install a water tray containing water in the testing chamber, and to heat the water by a heater to convert the water into steam, so as to increase the relative humidity in the testing chamber, and at the same time, the heater can increase the relative temperature in the testing chamber.

When the test temperature and humidity of a test chamber need to be constant within a certain area range, a compressor is used for refrigeration to suppress the temperature in the test chamber, a refrigeration device is used for cooling the test chamber and dehumidifying the test chamber, and in order to maintain the humidity in the test chamber, a mode of increasing the power of a humidifier and a heater is used for rapidly generating water vapor to ensure the indoor humidity. Therefore, the humidifier and the heater are continuously operated at high power to maintain the high temperature and high humidity state in the test chamber, which consumes a large amount of power and water, increases the emission of carbon dioxide, and is not energy-saving and environment-friendly, and the test area cannot be raised to the area range of 95 ℃ and 98% humidity.

Disclosure of Invention

Therefore, the invention aims to provide an energy-saving environment-friendly programmable constant temperature and humidity testing machine to solve the problems of high water consumption, power consumption and carbon emission of the conventional testing equipment.

In order to achieve the purpose, the invention mainly adopts the following technical scheme:

an energy-saving environment-friendly programmable constant temperature and humidity testing machine comprises a box body, and a heating device, a humidifying device, a refrigerating device and a temperature adjusting device which are arranged in the box body; the box body is internally provided with a test chamber and an equipment chamber, and the heating device, the humidifying device, the refrigerating device and the temperature regulating device are all arranged in the test chamber; the humidifying device comprises a heater and a water receiving tray, the heater is arranged in the water receiving tray, and the heater heats water in the water receiving tray to form water vapor; the heating device heats the temperature in the test chamber and balances the water vapor in the test chamber; the refrigerating device cools the room temperature in the test room; the temperature adjusting device comprises a loop device and a power pump connected to the loop device, the power pump is arranged in the equipment room, and the loop device is arranged in the test room; the loop device is provided with an inlet pipe and an outlet pipe, and the power pump is arranged on the inlet pipe; the power pump guides normal temperature gas or liquid into the loop device from the guide pipe, and the normal temperature gas or liquid is taken out of the test chamber through heat in the test chamber of the loop device so as to adjust the temperature in the test chamber.

Further, still include air cycle device, air cycle device includes driving motor, sets up the transmission shaft on driving motor and installs the fan on the transmission shaft, and this driving motor sets up in the equipment room, and the transmission shaft extends to in the test chamber, and the fan is installed on the transmission shaft in the test chamber.

Further, the refrigerating device is an air conditioner and comprises an inner machine and an outer machine, the inner machine is arranged in the test chamber, the outer machine is arranged in the equipment chamber, and the outer machine comprises a compressor, an evaporator and a condenser.

Further, the loop device is an air loop device, the power pump is an air pump, and the power pump introduces normal-temperature air into the loop device.

Further, the loop device is a liquid loop device, the power pump is a liquid pump, and the liquid pump introduces normal-temperature alcohol into the loop device.

Furthermore, the water heater also comprises a hot water tank, wherein a water inlet pipe and a water outlet pipe are arranged on the hot water tank; the refrigerating device is provided with a condensed water outlet pipe, the condensed water outlet pipe is connected to the water inlet pipe, and the water outlet pipe is connected to a water receiving disc of the humidifying device.

Furthermore, the water heater also comprises a water level detection device arranged in the water receiving tray, wherein an electromagnetic valve is arranged on a water outlet pipe of the hot water tank and electrically connected with the water level detection device.

The hot water tank is characterized by further comprising an air guide pipe, wherein the air guide pipe is connected to an outlet pipe of the temperature adjusting device and penetrates through the hot water tank.

Furthermore, a box door is further arranged outside the test chamber, an early warning device and an inductive switch electrically connected with the early warning device are arranged on the box door, and when the temperature in the test chamber is higher than the safety temperature, the inductive switch reversely locks the box door.

Further, the loop device is in a circularly bent tubular arrangement.

In conclusion, the temperature in the test chamber is regulated and controlled by adding the temperature regulating device, so that the dew point temperature is increased, the dehumidification capacity is reduced, the loss of electric energy and water and the discharge amount of carbon dioxide of the heating device and the humidifying device are reduced, and the device is energy-saving and environment-friendly. The invention can achieve the purpose of testing at high temperature and high humidity for a long time, has strong practicability and has stronger popularization significance.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of an energy-saving environment-friendly programmable constant temperature and humidity tester of the present invention;

FIG. 2 is a schematic view of the internal structure of the constant temperature and humidity tester in FIG. 1;

FIG. 3 is a schematic view of a connection structure of a hot water tank, a refrigerating device and a water pan;

FIG. 4 is a graph of temperature and humidity in accordance with the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 3, the invention provides an energy-saving environment-friendly programmable constant temperature and humidity testing machine, which comprises a box 10, and an air circulation device 20, a heating device 30, a humidifying device 40, a refrigerating device 50 and a temperature adjusting device 60 which are arranged in the box 10.

The box body 10 is formed by combining a plurality of heat-insulating partition plates, each heat-insulating partition plate comprises steel plates arranged on an outer layer and an inner layer, and a heat-insulating material arranged between the two steel plates. The box body 10 is internally provided with a test chamber 11 and an equipment chamber 12, and the equipment chamber 12 is arranged outside the test chamber 11. A box door 13 and a control panel 14 arranged on the outer side of the box door 13 are arranged on the outer side of the test chamber 11, and a pre-warning device (not shown) is further arranged on the box door 13 and can sense the temperature in the test chamber and display sensed information on the box door 13. The box door 13 is also provided with an inductive switch electrically connected with the early warning device, and when the temperature in the test chamber is higher than the safe temperature, the inductive switch locks the box door in a reverse mode, so that the condition that the box door 13 is opened easily by a worker to endanger the safety of the worker is avoided. Correspondingly, the box door is also provided with a manual control switch which can open the box door locked reversely.

The box door 13 is provided with a plane handle 15 without reaction and an observation window 16, and the handle 15 is simple and convenient to operate, safe and reliable. The utility model discloses a box door 13, including observation window 16, glass, heating layer, vacuum layer and heating body, be equipped with on observation window 16 and prevent fog glass, antifog glass embedded in the chamber door 13, this antifog glass includes glass main part layer, heating layer, sets up in main part and the vacuum layer and the heating body between the layer that generates heat, the vacuum layer is spaced apart glass main part layer and heating layer to separate the difference in temperature in the inboard and box 10 outside of box 10. The layer that generates heat is transparent setting, the heat-generating body generates heat and with heat transfer to the layer that generates heat on to when making the inboard temperature in vacuum layer reach or be higher than the temperature in the test chamber, hot-air just can not take place the condensation and fog because of the difference in temperature on this antifog glass, thereby reaches antifog purpose. In addition, a plurality of fluorescent lamps are arranged in the test chamber 11 to ensure that the interior of the chamber is bright and convenient to observe.

The air circulation device 20 includes a driving motor 21, a transmission shaft 23 disposed on the driving motor, and a multi-blade centrifugal circulation fan 22 disposed on the transmission shaft 23, wherein the driving motor 21 is disposed in the equipment room 12, the transmission shaft 23 extends into the test room 11, and the multi-blade centrifugal circulation fan 22 is disposed on the transmission shaft 23 in the test room 11. The multi-wing centrifugal circulation fan 22 blows air in the test chamber 11 to circulate the air in the test chamber 11 to ensure the balance of the overall temperature and humidity in the test chamber 11. The multi-wing centrifugal circulation fan 22 includes a hub and a plurality of blades arranged on the outer periphery of the hub, the blades are high and low temperature resistant aluminum alloy blades, and reinforcing parts are arranged at the joints of the blades and the hub to enhance the forced convection effect.

The heating device 30 and the humidifying device 40 are both arranged in the test chamber 11, and the heating device can not only heat the temperature in the test chamber, but also balance the whole content of the water vapor in the test chamber. The humidifying device 40 includes a water receiving tray 42 and a heater 41 disposed in the water receiving tray, and the heater 41 heats water in the water receiving tray 42 to form water vapor, which enters the air in the testing chamber 11, so as to increase the humidity of the air in the testing chamber 11. In addition, a water level detecting device (not shown) is disposed in the water-receiving tray 42, and can detect the water level in the water-receiving tray. An axial flow fan (not shown) is arranged above the water pan 42, the axial flow fan can rapidly transfer water vapor into the test chamber 11, and blades of the axial flow fan are made of high and low temperature resistant aluminum alloy materials. In this embodiment, the heating device 30 and the humidifying device 40 both adopt far infrared stainless steel high-speed heating nichrome electrothermal tubes, so that the heating device has the advantages of fast heating and long service life.

The refrigeration device 50 is used for cooling the room temperature of the test chamber 11, in this embodiment, the refrigeration device 50 is an air conditioner, and includes an inner unit 51 and an outer unit 52, the inner unit 51 is disposed in the test chamber 11, and the outer unit 52 is disposed in the equipment room 12. The inner machine 51 comprises a cooling device which is in a circularly bent tubular structure, and the cooling device with the structure can increase the contact area between the inner machine 51 and the air in the test chamber 11, so that the refrigeration and cooling effects of the refrigeration device 50 can be improved. In this embodiment, the outdoor unit includes a compressor, an evaporator, and a condenser. In addition, the refrigeration device 50 is provided with a condensed water outlet pipe 53

The temperature adjusting device 60 comprises a power pump 61 and a loop device 62 arranged in the test chamber 11, wherein the loop device 62 is provided with an inlet pipe 63 and an outlet pipe 64, the power pump 61 is connected to the inlet pipe 63 of the loop device 62, and the outlet pipe 64 of the loop device 62 is arranged in the equipment chamber 12. The power pump 61 introduces normal-temperature or low-temperature gas such as air from the introduction pipe 63 into the circuit device 62, and the gas brings heat in the test chamber 11 out from the introduction pipe 64 through the circuit device 62, thereby achieving temperature adjustment. The loop device 62 is circularly bent and tubular, so that the contact area of the loop device 62 and the air in the test chamber 11 can be increased, and the temperature adjusting effect is improved. It is understood that the temperature adjusting device 60 can also be a liquid temperature adjusting device, and the power pump 61 is a liquid pump; the liquid entering the liquid temperature adjusting device 60 may be alcohol or the like.

The energy-saving environment-friendly programmable constant temperature and humidity testing machine further comprises a hot water tank 70 and an air guide pipe 80, wherein a water inlet pipe 71 and a water outlet pipe 72 are arranged on the hot water tank 70, the condensed water outlet pipe 53 is connected to the water inlet pipe 71, condensed water flows into the hot water tank 70 through the water inlet pipe 71, the hot water tank 70 is connected into the water receiving tray 42 through a pipeline, and hot water heated in the hot water tank 70 can directly enter the water receiving tray 42 and can be used for supplying water in the water receiving tray 42. The hot water tank 70 includes an outer layer 73, an inner layer 74, and an insulating layer 75 disposed therebetween.

The air duct 80 is connected to the outlet pipe 64 of the temperature adjusting device 60, and the outer surface of the air duct 64 is attached to the outer surface of the inner layer 74 of the hot water tank 70. Spirally extends around the periphery of the inner layer 74 to increase the contact area between the air guide pipe 80 and the hot water tank 70, so that the hot air in the guide pipe 64 heats the condensed water in the hot water tank 70 and simultaneously cools the hot air in the air outlet pipe 64; therefore, both the condensed water and the hot air are recycled, and the condition that the normal operation of the equipment is influenced by the temperature rise of the hot air in the equipment room 12 can be avoided. It is understood that in other embodiments, the air guide tube 80 may be directly inserted into the hot water tank 70 to directly contact with the condensed water. The other end of the air duct 80 is connected to the power pump 61 and then enters the loop device 62 through the power pump, thereby forming an air path circulation.

An electromagnetic valve 90 is further arranged on the water outlet pipe of the hot water tank 70, and the electromagnetic valve 90 is connected to the water level detection device. When the water level detected by the water level detecting device is lower than the set value, the water level detecting device sends a signal, the electromagnetic valve 90 receives the signal and is opened, and the heated condensed water can enter the water receiving tray 42.

For a further understanding of the nature of the present invention, its use is now described by way of illustration and example, and the nature of the features of the invention that are intended to be covered by the following claims, which are to be construed in breadth and detail as follows:

referring to fig. 1 and 2, when a product needs to be tested, firstly, the product is placed in the testing chamber 11, the temperature and humidity of the testing chamber 11 are set through the control panel 14, the centrifugal circulation fan 22 of the air circulation device 20 can circulate the air in the testing chamber 11 to ensure the balance of the overall temperature and humidity in the testing chamber 11, the heating device 30 can increase the temperature in the testing chamber 11, the overall content of the water vapor in the testing chamber 11 can be more balanced, and the heater 41 of the humidifying device 40 can heat the water in the water receiving tray 42 to form the water vapor, so as to continuously increase the temperature and humidity in the testing chamber 11.

When the predetermined test temperature is reached in the test chamber 11, the temperature is suppressed, and there is a different temperature suppression means depending on the set test region.

Referring to fig. 4 again, when the test area in the test chamber 11 is within the range of 60-95 ℃ and 60-98% humidity (area a), the refrigeration device 50 does not start the compressor to refrigerate, but the power pump 61 of the temperature adjustment device 60 is used to compress air, the air is introduced into the loop device 62 through the air inlet pipe 63, the loop device 62 can exchange heat with the test chamber 11, the air is discharged from the air outlet pipe 64 and carries out a part of heat, so as to achieve the temperature adjustment effect, furthermore, the loop device 62 is in a circularly bent pipe shape, so as to increase the contact area with the air in the test chamber 11, so as to improve the temperature adjustment effect, and the evaporator of the refrigeration device 50 is used to reduce the refrigeration capacity, so that the area a does not start the compressor of the refrigeration device 50 to refrigerate, thereby reducing the heating capacity of the heating device 30 and the humidification capacity of the humidification device 40, the test equipment can save more than 75% of electricity on average, thereby achieving the effects of energy saving and electricity saving, achieving the high-temperature and high-humidity operation test for a long time, and further expanding the range of the test area to 95 ℃ of temperature and 98% of humidity.

It should be noted that the loop device 62 can increase the dew point temperature in the testing chamber 11, so as to reduce the dehumidification capability of the refrigeration device 50, reduce the power consumption of the heating device 30 and the humidification device 40, and achieve the effects of high temperature, high humidity, long-time operation and energy saving.

Referring to fig. 4, when the testing area in the testing chamber 11 is within the frame-selected range (excluding area a), the energy-saving environment-friendly programmable constant temperature and humidity testing apparatus can start the refrigeration device 50 to perform refrigeration with the temperature adjustment device 60 to suppress temperature overshoot, so that the power consumption of the heating device 30, the humidification device 40 and the refrigeration device 50 is reduced, the effects of energy saving and power saving are achieved, and the testing apparatus can operate for a long time.

Referring to fig. 3, the outdoor unit 52 of the refrigeration device 50 generates condensed water, the refrigeration device 50 is connected to the water inlet pipe 71 of the hot water tank 70 through the condensed water outlet pipe 53, so that the condensed water flows into the hot water tank 70, the air guiding pipe 80 is connected to the air outlet pipe 64 of the temperature adjusting device 60, hot air can be guided into the air guiding pipe 80 to heat the condensed water in the hot water tank 70, and finally the heated condensed water flows out through the water outlet pipe 72 and is connected to the water receiving tray 42, so that both the condensed water and the hot air can be recycled, the humidification device can save water by about 80%, and the hot air in the air guiding pipe 80 can be exchanged with the heat energy of the condensed water, so as to reduce the temperature of the hot air into normal temperature air or cold air, thereby preventing the temperature of the hot air from rising in the equipment room 12 and affecting the normal operation of other equipment.

In addition, the box body 10 is further provided with a water storage tank 17, the water storage tank 17 is arranged at the front lower part of the box body 10, and when the water level in the water receiving tray 42 is insufficient and the condensed water is insufficient, the water storage tank 17 can automatically supply water for the water receiving tray. The bottom of the box body 10 is inclined towards the water receiving tray 42 by taking the water receiving tray 42 as a center, so that water drops formed on the side wall of the box body 10 can flow into the water receiving tray 42 along the side wall and the inclined bottom surface. Thereby not only realizing the reutilization of water, but also avoiding the difficulties of water accumulation and cleaning at the bottom of the box body.

In summary, the temperature adjusting device 60 is added to adjust and control the temperature in the testing chamber 11, so as to increase the dew point temperature, reduce the dehumidification capacity, achieve high temperature, high humidity and long-time testing, reduce the consumption of electric energy and water and the discharge of carbon dioxide by the heating device 30 and the humidifying device 40, and achieve the purposes of energy saving and environmental protection. The invention has strong practicability and stronger popularization significance.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an energy-concerving and environment-protective procedure constant temperature and humidity testing machine which characterized in that: comprises a box body, a heating device, a humidifying device, a refrigerating device and a temperature adjusting device which are arranged in the box body; the box body is internally provided with a test chamber and an equipment chamber, and the heating device, the humidifying device, the refrigerating device and the temperature regulating device are all arranged in the test chamber; the humidifying device comprises a heater and a water receiving tray, the heater is arranged in the water receiving tray, and the heater heats water in the water receiving tray to form water vapor; the heating device heats the temperature in the test chamber and balances the water vapor in the test chamber; the refrigerating device cools the room temperature in the test room; the temperature adjusting device comprises a loop device and a power pump connected to the loop device, the power pump is arranged in the equipment room, and the loop device is arranged in the test room; the loop device is provided with an inlet pipe and an outlet pipe, and the power pump is arranged on the inlet pipe; the power pump guides normal temperature gas or liquid into the loop device from the guide pipe, and the normal temperature gas or liquid takes heat in the test chamber out of the test chamber through the loop device so as to adjust the temperature in the test chamber.

2. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 1, wherein: still include air circulation device, air circulation device includes driving motor, sets up the transmission shaft on driving motor and installs the fan on the transmission shaft, and this driving motor sets up in the equipment room, and the transmission shaft extends to in the test chamber, and the fan is installed on the transmission shaft in the test chamber.

3. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 1, wherein: the refrigerating device is an air conditioner and comprises an inner machine and an outer machine, the inner machine is arranged in the test chamber, the outer machine is arranged in the equipment chamber, and the outer machine comprises a compressor, an evaporator and a condenser.

4. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 1, wherein: the loop device is an air loop device, the power pump is an air pump, and the power pump introduces normal-temperature air into the loop device.

5. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 1, wherein: the loop device is a liquid loop device, the power pump is a liquid pump, and the liquid pump guides normal-temperature alcohol into the loop device.

6. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 1, wherein: the hot water tank is provided with a water inlet pipe and a water outlet pipe; the refrigerating device is provided with a condensed water outlet pipe, the condensed water outlet pipe is connected to the water inlet pipe, and the water outlet pipe is connected to a water receiving disc of the humidifying device.

7. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 6, wherein: the water heater is characterized by further comprising a water level detection device arranged in the water receiving tray, wherein an electromagnetic valve is arranged on a water outlet pipe of the hot water tank and electrically connected to the water level detection device.

8. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 6, wherein: the hot water tank is characterized by further comprising an air guide pipe, wherein the air guide pipe is connected to the leading-out pipe of the temperature adjusting device and penetrates through the hot water tank.

9. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 1, wherein: the testing chamber is also provided with a chamber door, the chamber door is provided with an early warning device and an inductive switch electrically connected with the early warning device, and when the temperature in the testing chamber is higher than the safe temperature, the inductive switch locks the chamber door.

10. The energy-saving environment-friendly programmable constant temperature and humidity tester as claimed in claim 1, wherein: the loop device is arranged in a circularly bent tubular shape.