Formaldehyde purification product purification efficiency detection cabin

Abstract

The utility model provides a formaldehyde purification product purification efficiency detection cabin, particularly relates to the technical field of product detection, and aims to solve the technical problem that an existing pollutant environment test cabin can only detect the formaldehyde removal rate of a product after formaldehyde in the test cabin and cannot detect the natural formaldehyde attenuation rate of the test cabin at the same time. The capsule comprises a capsule body, the capsule body comprises two cavities which are arranged adjacently, and the shapes and the volumes of the cavities are the same; the formaldehyde generating system is arranged on a partition plate between the cavities; the formaldehyde generating system is used for respectively introducing formaldehyde gas into different cavities at the same flow velocity and flow; a formaldehyde concentration detection probe is arranged on the inner side of each cavity, and the formaldehyde concentration detection probes on the inner sides of the cavities are symmetrically arranged along the partition plate; the formaldehyde generation system and the formaldehyde concentration detection probe are electrically connected with the controller. The device can detect the natural attenuation rate of formaldehyde in the test cabin while detecting the formaldehyde removal rate of a product after the formaldehyde in the test cabin is generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to product detection technical field, specifically, it relates to formaldehyde purification product purification efficiency detection cabin. BACKGROUND

[0002] With the increasingly serious indoor air pollution problem, the market demand of indoor air purification product is increasing, wherein for formaldehyde purification, various formaldehyde purification products appear on the market. The purification efficiency of formaldehyde purification product needs to be detected. The current detection method generally has the following two kinds, the first kind is to put the formaldehyde purification product to be detected in the real environment, and detects through formaldehyde detection equipment, this method is greatly influenced by environmental factors, and the detection result is not accurate enough. The other is to use the pollutant environment test cabin in the regulation of the present relevant standard to test, this method can avoid most environmental influence factors, but the existing pollutant environment test cabin can only detect the product formaldehyde removal rate after formaldehyde occurs in the test cabin, and cannot detect the formaldehyde natural decay rate of the test cabin at the same time, so the detection result is not accurate enough. UTILITARY MODEL CONTENTS

[0003] The utility model aims at providing formaldehyde purification product purification efficiency detection cabin, it can detect the product formaldehyde removal rate after formaldehyde occurs in the test cabin, and detect the formaldehyde natural decay rate of the test cabin at the same time, thereby improving the accuracy of detection result.

[0004] The embodiment of the utility model realizes by the following technical scheme:

[0005] Formaldehyde purification product purification efficiency detection cabin, including cabin body, the cabin body includes two cavities that are adjacently arranged, the shape and volume of each cavity are same;

[0006] Formaldehyde generation system, the formaldehyde generation system is arranged on the partition between the cavity, and the formaldehyde generation system respectively into formaldehyde gas to different cavities with same flow rate flow;

[0007] Formaldehyde concentration detection probe, each cavity inboard is respectively provided with formaldehyde concentration detection probe, and the formaldehyde concentration detection probe of cavity inboard is symmetrically arranged along the partition;

[0008] Controller, the formaldehyde generation system, formaldehyde concentration detection probe are respectively electrically connected with the controller.

[0009] In some embodiments of the present application, the formaldehyde generation system comprises a first shell, two sets of formaldehyde generators are arranged in the first shell and electrically connected in parallel, the formaldehyde generators are electrically connected with the controller, a gas-tight sampler is connected to the gas outlet of each formaldehyde generator, the gas-tight samplers are respectively connected with the corresponding cavities, and a precision syringe pump is arranged on the gas-tight sampler; the precision syringe pump is electrically connected with the controller; and the gas-tight samplers are symmetrically arranged along the partition plate.

[0010] In some embodiments of the present application, a purification system is arranged above the cabin, the purification system comprises a Y-shaped connecting pipe, two ports of the Y-shaped connecting pipe are respectively connected with the corresponding cavities, the remaining port of the Y-shaped connecting pipe is connected with an activated carbon module through a pipeline, an air extractor is connected to the outlet of the activated carbon module, the air extractor is electrically connected with the controller, and a valve body electrically connected with the controller is arranged on the pipeline.

[0011] In some embodiments of the present application, one of the cavities is internally provided with a sample table.

[0012] In some embodiments of the present application, the cavity provided with the sample table is further provided with a sample hanging rack, and the sample hanging rack is arranged above the sample table.

[0013] In some embodiments of the present application, a temperature and humidity control system is arranged at the top of each cavity, the temperature and humidity control systems are electrically connected in parallel and electrically connected with the controller; the temperature and humidity control system comprises a second shell arranged at the top of the cavity, a heater, a refrigerating device, a humidifier, a dehumidifier and a temperature and humidity sensor are integrated in the second shell, and a probe of the temperature and humidity sensor is arranged in the cavity; and the second shells are symmetrically arranged along the partition plate.

[0014] In some embodiments of the present application, a fan is arranged at the top of the inner side of each cavity, the fans are electrically connected in parallel and electrically connected with the controller; and the fans are symmetrically arranged along the partition plate.

[0015] In some embodiments of the present application, a light source system is arranged at the top of each cavity, the light source systems are electrically connected in parallel and electrically connected with the controller, the light source system comprises an LED daylight lamp group and an ultraviolet lamp group; and the light source systems are symmetrically arranged along the partition plate.

[0016] In some embodiments of the present application, an opening and closing door is arranged on one side of each cavity, and the opening and closing doors are symmetrically arranged along the partition plate.

[0017] The technical scheme of the embodiment of the present application has at least the following advantages and beneficial effects:

[0018] 1、The device comprises two cavities with the same shape and volume, one of which is a detection cabin for detecting the formaldehyde removal rate of the product after formaldehyde generation in the test cabin, and the other cavity is a blank cavity for detecting the natural decay rate of formaldehyde in the test cabin, so that a test control group can be formed, the accuracy of the detection result is improved, and the purification efficiency of the formaldehyde purification product can be accurately detected.

[0019] 2、The formaldehyde purification product purification efficiency detection cabin provided by the device comprises a formaldehyde generation system, a fan, a temperature and humidity control system, and a light source system, which can simulate a real environment.

[0020] 3、The device comprises a purification system, which absorbs the polluted gas in the cabin after the test through an activated carbon module. The device can ensure the environment inside and outside the cabin after the test is completed, and protect the experimental personnel from the polluted gas.

[0021] 4、Compared with the traditional environmental cabin which collects gas through a collection hole and obtains intermittent data through chemical detection, the device adopts a formaldehyde concentration detection probe to collect and analyze real-time data of the pollutant concentration in the cabin, can generate a detailed purification efficiency curve and a report, and is convenient for users to analyze and compare the performance of different products. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 The structure diagram of the formaldehyde purification product purification efficiency detection cabin provided by the embodiments of the present application.

[0024] Figure legend: 1, cavity; 2, partition; 3, formaldehyde concentration detection probe; 4, controller; 5, first shell; 6, formaldehyde generator; 7, air-tight sampler; 8, precision syringe pump; 9, Y-shaped connecting pipe; 10, activated carbon module; 11, air extractor; 12, sample table; 13, sample hanging rack; 14, second shell; 15, fan; 16, LED daylight lamp group; 17, ultraviolet lamp group; 18, opening and closing door. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0027] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "set", "mount", "connected", "connected" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Please refer to Figure 1As shown, the main body of the embodiment is a formaldehyde purification product purification efficiency detection cabin, which comprises a cabin body, the cabin body comprises two cavities 1 arranged adjacent to each other, the shapes and volumes of the two cavities 1 are the same, and the two cavities 1 are separated by a partition plate 2; it also includes a formaldehyde generation system, which is arranged on the partition plate 2 between the cavities 1; the formaldehyde generation system respectively inputs formaldehyde gas into different cavities 1 at the same flow rate; a formaldehyde concentration detection probe 3 is arranged on the inner side of each cavity 1, the formaldehyde concentration detection probe 3 should have high sensitivity and fast response characteristics, a Swiss Sens i r ion SFA30 type formaldehyde sensor is used, the formaldehyde concentration detection probe 3 on the inner side of the cavity 1 is symmetrically arranged along the partition plate 2; it also includes a controller 4, the controller 4 uses a PC computer, the formaldehyde generation system and the formaldehyde concentration detection probe 3 are respectively electrically connected with the controller 4. Among the two cavities 1, one cavity 1 is a detection cabin, which is used to detect the formaldehyde removal rate of the product after formaldehyde generation in the test cabin, and the other cavity 1 is a blank cavity, which is used to detect the natural decay rate of formaldehyde in the test cabin, so as to directly form a test control group and improve the accuracy of the detection result.

[0031] It should be noted that the formaldehyde data analysis system in the controller 4 uses the SEK-Contro l Centerviewer software provided with the Sens i r i on SFA30 type formaldehyde sensor to record and analyze the formaldehyde concentration data in the cabin, and quickly calculate the purification efficiency of the formaldehyde purification product. The data analysis system can generate a purification efficiency curve and a report according to the data of a period of time, which is convenient for users to analyze and compare the performance of different products.

[0032] Further, the formaldehyde generation system comprises a first housing 5, two sets of formaldehyde generators 6 are electrically connected in parallel inside the first housing 5, the formaldehyde generators 6 adopt a formaldehyde generator 6 with a model number of Suzhou Zhonghao SPG-GB, the formaldehyde generator 6 comprises a precision vaporizer, which generates continuous and stable concentration methanol gas by heating and mixing liquid formaldehyde and air, and a catalytic module is further arranged inside the formaldehyde generator 6, which can obtain high-purity formaldehyde gas by passing the stable generated concentration methanol gas through a formaldehyde catalyst. The formaldehyde generator 6 is electrically connected with the controller 4, and the gas-tight sampler 7 is connected with the outlet end of each formaldehyde generator 6, the gas-tight sampler 7 is in communication with the corresponding cavity 1, and a precision syringe pump 8 is arranged on the gas-tight sampler 7; the precision syringe pump 8 is electrically connected with the controller 4; the gas-tight sampler 7 is symmetrically arranged along the partition plate 2.

[0033] The two formaldehyde generators 6 are electrically connected in parallel and to the controller 4. Therefore, by setting the preset parameters of the controller 4, these parameters can be simultaneously input into both formaldehyde generators 6, thereby improving the synchronization and consistency of experimental data from the test chamber and the blank chamber. Furthermore, the airtight sample injector 7 is symmetrically arranged along the partition 2, thereby improving the controllability of the contents inside the chamber 1. This further ensures the experimental reference effect for both chambers.

[0034] Furthermore, a purification system is provided above the cabin. The purification system includes a Y-shaped connecting pipe 9. Two ports of the Y-shaped connecting pipe 9 are respectively connected to the corresponding cavity 1. The remaining port of the Y-shaped connecting pipe 9 is connected to an activated carbon module 10 through a pipeline. The outlet end of the activated carbon module 10 is connected to an exhaust fan 11. The exhaust fan 11 is electrically connected to the controller 4. A valve body electrically connected to the controller 4 is provided on the pipeline.

[0035] During the test, the valve body is in the closed state; after the test is completed, the controller 4 controls the valve body to open, so that the formaldehyde gas in the two chambers 1 enters the activated carbon module 10 for purification through the port of the Y-type connecting pipe 9; in addition, the exhaust fan 11 provides the gas flow power.

[0036] Furthermore, a sample stage 12 is provided inside the cavity 1 of the test chamber.

[0037] Among them, sample platform 12 is mainly used for placing samples of formaldehyde purification products.

[0038] Furthermore, a sample suspension frame 13 is also provided inside the cavity 1 where the sample stage 12 is provided, and the sample suspension frame 13 is located above the sample stage 12.

[0039] Among them, the sample hanging rack 13 is used to hang the base paper sample sprayed by the liquid formaldehyde purification product.

[0040] Furthermore, each of the cavities 1 is provided with a temperature and humidity control system at its top, and each temperature and humidity control system is electrically connected in parallel and electrically connected to the controller 4; the temperature and humidity control system includes a second housing 14 disposed at the top of the cavity 1, and the second housing 14 integrates a heater, a cooler, a humidifier, a dehumidifier and a temperature and humidity sensor, and the probe of the temperature and humidity sensor is disposed inside the cavity 1; the second housing 14 is symmetrically arranged along the partition 2.

[0041] The temperature and humidity control system is used to adjust the temperature and humidity in the cabin, to ensure the environmental conditions of formaldehyde release and sample effectiveness. At the same time, the purification effect under different environmental conditions is simulated. The temperature and humidity control systems are electrically connected in parallel and electrically connected with the controller 4, to improve the synchronization and consistency of the test cabin and blank cabin experimental data; the second shell 14 is symmetrically arranged along the partition plate 2, thereby improving the control of the arrangement inside the cavity 1.

[0042] Further, the inner side top of each cavity 1 is respectively provided with a fan 15, and each fan 15 is electrically connected in parallel and electrically connected with the controller 4; the fan 15 is symmetrically arranged along the partition plate 2.

[0043] Wherein, the fan 15 disturbs the gas inside the cavity 1 to form a circulating air path to ensure uniform distribution of air in the cabin and avoid local concentration difference. Each of the fans 15 is electrically connected in parallel and electrically connected with the controller 4, to improve the synchronization and consistency of the test cabin and blank cabin experimental data; the fan 15 is symmetrically arranged along the partition plate 2, thereby improving the control of the arrangement inside the cavity 1.

[0044] Further, the top of each cavity 1 is respectively provided with a light source system, and each light source system is electrically connected in parallel and electrically connected with the controller 4, the light source system includes an LED daylight lamp group 16 and an ultraviolet lamp group 17; the light source system is symmetrically arranged along the partition plate 2.

[0045] Wherein, the LED daylight lamp is used to simulate the daily lamp lighting environment, and the ultraviolet lamp group 17 provides an ultraviolet light source to facilitate the detection of photocatalyst type formaldehyde purification products.

[0046] Further, one side of each of the cavities 1 is respectively provided with an opening and closing door 18, and the opening and closing door 18 is symmetrically arranged along the partition plate 2.

[0047] Wherein, the opening and closing door 18 can enter the cavity 1 to perform corresponding operations.

[0048] The specific use process of the device is as follows:

[0049] 1. Preparation:

[0050] Place the formaldehyde purification product to be tested on the sample table 12 in the detection cabin, and spray the liquid purification product on the appropriate base paper hung on the sample hanging rack 13. Close the opening and closing door 18 to ensure that the cabin is airtight.

[0051] Start the formaldehyde generating system, and introduce formaldehyde pollutants into the detection cabin and the blank cabin, and adjust to the required formaldehyde concentration.

[0052] 2. Detection process:

[0053] Start the fan 15, temperature and humidity control system and light source system, adjust to the required environmental conditions.

[0054] Start the formaldehyde concentration detection probe 3 and the data analysis system, start recording the formaldehyde concentration data.

[0055] During the detection process, record the change of formaldehyde concentration regularly until reaching the stable state.

[0056] 3. End the cleaning process:

[0057] After the experiment, start the purification system, purify the formaldehyde in the cabin, maintain the cleaning sensor probe, and clean the environment cabin with clean water to ensure the cleanliness of the test cabin.

[0058] 4. Data analysis:

[0059] The data analysis system calculates the purification efficiency of the formaldehyde purification product according to the recorded formaldehyde concentration data in the test cabin and the blank cabin. Generate a purification efficiency curve and report to facilitate user analysis and comparison of the performance of different products.

[0060] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A formaldehyde purification product purification efficiency testing chamber, characterized in that, include: The cabin includes two adjacent cavities (1), each of which has the same shape and volume; A formaldehyde generating system is provided on a partition (2) between the cavities (1); the formaldehyde generating system introduces formaldehyde gas into different cavities (1) at the same flow rate; Formaldehyde concentration detection probe (3) is provided on the inner side of each cavity (1), and the formaldehyde concentration detection probe (3) on the inner side of the cavity (1) is symmetrically arranged along the partition (2); The controller (4), the formaldehyde generation system, and the formaldehyde concentration detection probe (3) are all electrically connected to the controller (4).

2. The formaldehyde purification product purification efficiency testing chamber according to claim 1, characterized in that, The formaldehyde generating system includes a first housing (5), inside which are two sets of formaldehyde generators (6) connected in parallel. The formaldehyde generators (6) are electrically connected to the controller (4). Each formaldehyde generator (6) has an airtight injector (7) connected to its outlet end. The airtight injector (7) is connected to the corresponding cavity (1). The airtight injector (7) is equipped with a precision injection pump (8). The precision injection pump (8) is electrically connected to the controller (4). The airtight injectors (7) are symmetrically arranged along the partition (2).

3. The formaldehyde purification product purification efficiency testing chamber according to claim 1, characterized in that, A purification system is provided above the cabin. The purification system includes a Y-shaped connecting pipe (9). Two ports of the Y-shaped connecting pipe (9) are respectively connected to the corresponding cavity (1). The remaining port of the Y-shaped connecting pipe (9) is connected to an activated carbon module (10) through a pipeline. An exhaust fan (11) is connected to the outlet end of the activated carbon module (10). The exhaust fan (11) is electrically connected to the controller (4). A valve body electrically connected to the controller (4) is provided on the pipeline.

4. The formaldehyde purification product purification efficiency testing chamber according to claim 1, characterized in that, One of the cavities (1) has a sample stage (12) inside.

5. The formaldehyde purification product purification efficiency testing chamber according to claim 4, characterized in that, The cavity (1) containing the sample stage (12) is also provided with a sample hanging rack (13), which is located above the sample stage (12).

6. The formaldehyde purification product purification efficiency testing chamber according to claim 1, characterized in that, Each of the cavities (1) is provided with a temperature and humidity control system at its top. Each temperature and humidity control system is electrically connected in parallel and electrically connected to the controller (4). The temperature and humidity control system includes a second housing (14) disposed at the top of the cavity (1). The second housing (14) integrates a heater, a cooler, a humidifier, a dehumidifier and a temperature and humidity sensor. The probe of the temperature and humidity sensor is disposed inside the cavity (1). The second housing (14) is symmetrically arranged along the partition (2).

7. The formaldehyde purification product purification efficiency testing chamber according to claim 1, characterized in that, Each cavity (1) is provided with a fan (15) on its inner top. Each fan (15) is electrically connected in parallel and electrically connected to the controller (4). The fans (15) are symmetrically arranged along the partition (2).

8. The formaldehyde purification product purification efficiency testing chamber according to claim 1, characterized in that, Each cavity (1) is provided with a light source system at its top. Each light source system is electrically connected in parallel and electrically connected to the controller (4). The light source system includes an LED fluorescent lamp group (16) and an ultraviolet lamp group (17). The light source system is symmetrically arranged along the partition (2).

9. The formaldehyde purification product purification efficiency testing chamber according to claim 1, characterized in that, Each cavity (1) is provided with an opening and closing door (18) on one side, and the opening and closing doors (18) are symmetrically arranged along the partition (2).

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