Air purification product test cabin

Abstract

The utility model discloses an air purification product test cabin, which is used for testing air purification products and comprises a plurality of test cabins and a circulating pump, the circulating pump is used for inputting pollutant gas into the test cabins, and each test cabin comprises a plurality of sampling ports used for collecting gas in the test cabins; the stainless steel inner container is arranged in the test cabin; the circulating fan is used for uniformly distributing the pollutant gas in the test cabin; the temperature control module is used for controlling the temperature in the test cabin; and the humidity control module is used for controlling the humidity in the test cabin. According to the utility model, a dry and wet air path switching humidity control technology is adopted, the humidity control precision is high, the efficiency is high, the humidification consumption is low, the home environment can be simulated more accurately, the test is more accurate, the system can adapt to more test standards, and the expandability is strong.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental test cabin technology, especially an air purification product test cabin. BACKGROUND

[0002] The test cabin of the air purification product in prior art all adopts air purification material coated on stainless steel or glass placed in the test cabin, and then toxic gas such as formaldehyde is introduced into the test cabin for testing.

[0003] However, the environment in the test cabin is not controlled, and temperature and humidity are not controlled, in this way, the scene of the family cannot be simulated, that is, the environment and use conditions are not the same, and the purification effect of the air purification product on harmful gas such as formaldehyde cannot be accurately simulated. UTILITY MODEL CONTENT

[0004] According to the utility model embodiment, an air purification product test cabin is provided for testing air purification products, comprising a plurality of test chambers and a circulating pump, the circulating pump is used for inputting pollutant gas into the test chamber, and each test chamber comprises:

[0005] A plurality of sampling ports are used for collecting gas in the test chamber.

[0006] A stainless steel liner is arranged in the test chamber.

[0007] A circulating fan is used for distributing the pollutant gas uniformly in the test chamber.

[0008] A temperature control module is used for controlling the temperature in the test chamber.

[0009] A humidity control module is used for controlling the humidity in the test chamber.

[0010] Further, the number of test chambers is 3.

[0011] Further, each test chamber comprises 2 sampling ports.

[0012] Further, the temperature control module comprises:

[0013] A water heat exchanger is used for providing heat in the test chamber.

[0014] A water pump is connected with the water heat exchanger and is used for controlling the water circulation in the water heat exchanger.

[0015] A mold temperature unit is connected with the water pump and the water heat exchanger respectively and is used for controlling the water temperature in the water heat exchanger.

[0016] Further, the temperature control module further comprises: a stirring fan is used for sending the heat of the water heat exchanger into the test chamber.

[0017] Furthermore, the water heat exchanger is a finned water heat exchanger.

[0018] Furthermore, the stainless steel inner liner is made using a full welding process.

[0019] Furthermore, the humidity control module includes: a fan, a drying unit, and a humidification unit; the drying unit is used to dry the ambient air blown in by the fan, and the humidification unit is used to humidify the ambient air blown in by the fan. The air output from the drying unit and the humidification unit is mixed and then input into the test chamber.

[0020] Furthermore, the drying unit includes a refrigerated dehumidifier, which dries the ambient air to dry air with a dew point temperature of 5-10°C.

[0021] Furthermore, the humidification unit includes a humidification chamber and a water replenishment chamber. The water replenishment chamber is used to replenish water to the humidification chamber, and the humidification chamber is used to humidify the ambient air blown in by the fan.

[0022] The air purification product test chamber according to the present invention adopts a dry and wet air path switching humidity control technology, which has high humidity control accuracy and efficiency, low humidification consumption, can more accurately simulate the home environment, make the test more accurate, and can adapt to more test standards, with strong scalability.

[0023] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the air purification product test chamber according to an embodiment of the present utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the test chamber. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0027] First, combine Figures 1-2 The air purification product test chamber described in this utility model is used to test air purification products and has a wide range of applications.

[0028] like Figures 1-2As shown, the air purification product test cabin of the embodiment of the utility model has a plurality of test chambers 1 and circulating pumps 2, the circulating pump 2 is used to input pollutant gas to the test chamber 1, each test chamber 1 has: a plurality of sampling ports 11, stainless steel inner bag 12, circulating fan 13, temperature control module 14 and humidity control module 15. Among them, the sampling port 11 is used to collect the gas in the test chamber 1;Stainless steel inner bag 12 is arranged in the test chamber 1, in this embodiment, stainless steel inner bag 12 adopts full welding process, not only itself is not contaminated, ensures that there is no formaldehyde and VOC adsorption and release, and the air tightness is good;The circulating fan 13 selects three-blade full-metal circulating fan, and the air supply is uniform and stable, so that the pollutant gas for testing is more evenly distributed in the test chamber 1;Temperature control module 14 is used to control the temperature in the test chamber 1;Humidity control module 15 is used to control the humidity in the test chamber 1.

[0029] Specifically, as shown in the figure, Figure 2 In this embodiment, the number of test chambers 1 is 3, which are respectively used to meet the requirements of standard control, experiment and blank group.

[0030] Specifically, as shown in the figure, Figure 2 In this embodiment, each test chamber 1 contains 2 sampling ports 11, which can sample at the same time, facilitate parallel test, and ensure more accurate test results.

[0031] Specifically, as shown in the figure, Figure 2 The temperature control module 14 has: water heat exchanger 141, water pump 142 and mold temperature unit 143, the water temperature is controlled by mold temperature unit 143, and the water circulation in water heat exchanger 141 is controlled by water pump 142. Among them, the water heat exchanger 141 is arranged in the test chamber 1, which is used to transfer heat to the test chamber 1;Water pump 142 is connected with water heat exchanger 141, which is used to control the water circulation of water heat exchanger 141;Mold temperature unit 143 is connected with water pump 142 and water heat exchanger 141 respectively, which is used to control the water temperature in water heat exchanger 141. In this embodiment, the water heat exchanger 141 is a finned water heat exchanger, which has large heat exchange area, high heat exchange efficiency and short stabilization time, not only greatly improves the temperature control efficiency, but also has good temperature uniformity, which can ensure the linear change of water temperature in water heat exchanger 141, and the condensation phenomenon will not occur, at the same time, the finned water heat exchanger has small volume, which does not affect the placement of the board on each test rack in the test chamber 1.

[0032] Further, as shown in the figure, Figure 2 The temperature control module 14 also has: stirring fan 145, which is used to send the heat of water heat exchanger 141 into the test chamber 1, so that the water heat exchanger 141 and the test chamber 1 are forced to exchange heat.

[0033] Specifically, as shown in the figure, Figure 2As shown, the humidity control module 15 adopts a dry and wet air mixing humidity control technology, which is sensitive to response, can finely control the humidity output according to the output power, can better simulate the home environment, test more accurately, adapt to more standards, and has strong scalability. In general, the humidity stabilization time is not more than 1 hour, and the humidification consumption is very small, and the water consumption for 1 month of continuous work is not more than 20 kg. In this embodiment, the humidity control module 15 has: a fan 151, a drying unit 152, and a humidifying unit 153. The drying unit 152 is used to dry the ambient air blown by the fan 151, and the humidifying unit 153 is used to humidify the ambient air blown by the fan 151. The air output by the drying unit 152 and the humidifying unit 153 is mixed and then input into the test chamber 1.

[0034] Further, as shown, Figure 2 The drying unit 152 includes a cold dry dehumidifier, which is used to dry the ambient air to dry air with a dew point temperature of 5-10℃. The dehumidification effect is good, most of the water in the air can be removed, the humidity can be controlled at 20%RH, the performance is stable, and it is not easy to be affected by the environment. It can provide a stable and reliable clean dry air source for the equipment, and the speed is very fast and the performance is uniform and reliable.

[0035] Further, as shown in the figure, the humidifying unit 153 includes: a humidifying chamber 1531 and a water supplementing cabin 1532. The water supplementing cabin 1532 is used to supplement water to the humidifying chamber 1531, and the humidifying chamber 1531 is used to humidify the ambient air blown by the fan 151. The vaporization humidification control precision is high, and the humidity output can be finely controlled according to the output power to achieve high-precision control and fast and stable requirements.

[0036] When testing the air purification product, the temperature and humidity in the test chamber 1 need to be controlled to simulate the home environment. The air passes through the cold dry dehumidifier, and the dew point temperature is reduced to about 5-10℃. After filtration, the gas is divided into two paths. One is dry gas, and the other enters the humidifying unit 153. The humidifying unit 153 performs quantitative humidification according to the humidity feedback of the temperature and humidity sensor. Then the dry air and the humidified wet air are mixed and enter the test chamber 1 to achieve humidity balance. When the humidity in the test chamber 1 is higher than the set humidity, the output of the humidifying unit 153 needs to be closed, so that the air entering the test chamber 1 is dry air with a dew point temperature of 5-10℃ output by the cold dry dehumidifier. The humidity in the test chamber 1 decreases rapidly with the increase of the newly entered dry air, thereby achieving the purpose of dehumidification.

[0037] The above, with reference to Figures 1-2The air purification product test cabin according to the embodiment of the utility model is described, adopts dry and wet gas path switching humidity control technology, humidity control precision is high, efficiency is high, humidification consumption is small, can simulate home environment more accurately, test is more accurate, and can adapt to more test standards, and expansibility is strong.

[0038] It should be noted that in the present specification, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusions, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. Without more limitations, the elements defined by the statement "contain" do not exclude the presence of other identical elements in the process, method, article or equipment including the elements.

[0039] Although the content of the utility model has been introduced in detail by the above preferred embodiment, it should be recognized that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and alternatives of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the appended claims.

Claims

1. An air purification product test chamber for testing air purification products, comprising a plurality of test chambers and a circulation pump for inputting a pollutant gas into the test chambers, characterized in that, Each of the test chambers comprises: a plurality of sampling ports for collecting the gas in the test chamber; a stainless steel liner arranged in the test chamber; a circulating fan for distributing the pollutant gas uniformly in the test chamber; a temperature control module for controlling the temperature in the test chamber; a humidity control module for controlling the humidity in the test chamber.

2. The air purification product test chamber of claim 1, wherein, The number of the test chambers is 3.

3. The air purification product test chamber of claim 1, wherein, Each of the test chambers comprises 2 sampling ports.

4. The air purification product test chamber of claim 1, wherein, The temperature control module comprises: a water heat exchanger for providing heat in the test chamber; a water pump connected with the water heat exchanger for controlling the circulation of water in the water heat exchanger; a temperature control unit connected with the water pump and the water heat exchanger for controlling the water temperature in the water heat exchanger.

5. The air purification product test chamber of claim 4, wherein, The temperature control module further comprises a stirring fan for sending the heat of the water heat exchanger into the test chamber.

6. The air purification product test chamber of claim 4, wherein, The water heat exchanger is a finned water heat exchanger.

7. The air purification product test chamber of claim 1, wherein, The stainless steel liner adopts a full welding process.

8. The air purification product test chamber of claim 1, wherein, The humidity control module comprises a fan, a drying unit and a humidifying unit; the drying unit is used for drying the ambient air blown by the fan, the humidifying unit is used for humidifying the ambient air blown by the fan, and the air output by the drying unit and the humidifying unit respectively is mixed and then input into the test chamber.

9. The air purification product test chamber of claim 8, wherein, The drying unit comprises a cold drying dehumidifier, which dries the ambient air into dry air with a dew point temperature of 5-10℃.

10. The air purification product test chamber of claim 8, wherein, The humidifying unit comprises a humidifying chamber and a water supplement cabin, the water supplement cabin is used for supplementing water to the humidifying chamber, and the humidifying chamber is used for humidifying the ambient air blown by the fan.

Images