Detection equipment for formaldehyde production

By introducing a heating plate and humidifier into the formaldehyde detection equipment, combined with a sealed structure and purification system, the problem of formaldehyde detection results being affected by the environment has been solved, achieving high-precision formaldehyde concentration measurement and gas purification.

CN224095824UActive Publication Date: 2026-04-07PUYANG PENGXIN CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing formaldehyde testing methods are easily affected by factors such as ambient temperature, leading to significant errors in test results.

Method used

A detection device was designed, comprising a heating plate, a humidifier, a humidity detector, a temperature detector, a formaldehyde detector, and an activated carbon filter. By adjusting the temperature and humidity, combined with a sealed structure and an exhaust fan, formaldehyde gas is filtered and purified to ensure detection accuracy.

Benefits of technology

It enables accurate detection of formaldehyde concentration in a stable environment, reduces detection errors, improves detection accuracy, and reduces the risk of gas pollution through purification devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses detection equipment for formaldehyde production, which comprises a detection box body, a heating plate arranged on the inner bottom wall of the detection box body, a detection base arranged above the heating plate, a heat conduction insulating layer arranged between the detection base and the heating plate, supporting columns symmetrically connected to the detection base, and threaded sleeves connected to the top ends of the supporting columns. A threaded rod is in threaded connection with the interior of the threaded sleeve, a humidity detector, a temperature detector and a formaldehyde detector are arranged on the inner wall of the detection box body, a humidifier air inlet is formed in one side of the humidity detector, a partition plate mechanism is arranged above the formaldehyde detector, and an activated carbon filter screen is arranged above the partition plate mechanism; by arranging the heating plate and the humidifier, the temperature and humidity in the detection box body can be effectively adjusted, the formaldehyde content of a to-be-detected material can be conveniently and accurately detected, formaldehyde-containing gas is adsorbed through the air exhauster and the activated carbon filter screen, formaldehyde residues in the detection box body are avoided, and the detection efficiency is improved. The unnecessary influence on the formaldehyde detection result of the next to-be-detected material is caused.
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Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field, concretely is a detection equipment for formaldehyde production. BACKGROUND

[0002] Formaldehyde is a colorless, irritating gas, has the stimulation effect to human eyes, nose etc., and it is widely used in pesticide, disinfectant, wood processing, coating, medicine and dye etc. as an important chemical raw material, after formaldehyde raw material production is completed, generally needs to use the detection equipment to detect the formaldehyde concentration of raw material, in the closed environment of certain temperature and humidity, the concentration of formaldehyde that formaldehyde raw material releases can reach the best.

[0003] However, the detection of formaldehyde is generally placed in a closed environment, and the formaldehyde content released in the air is detected by a formaldehyde detector, and then the formaldehyde content of the material is calculated, and the detection result is easily affected by the environment temperature, and the detection result error is large. SUMMARY

[0004] The utility model discloses a detection equipment for formaldehyde production to solve the problem that the detection result of the existing detection mode is easily affected by the environment temperature, and the detection result error is large.

[0005] In order to solve the above technical problem, the utility model provides the following technical scheme:

[0006] A detection equipment for formaldehyde production, including detection box body, the bottom wall in detection box body is equipped with heating plate, and the detection base is equipped above heating plate, and the heat insulation layer is equipped between detection base and heating plate, and the support is connected symmetrically on detection base, and the threaded sleeve is connected on the top end of support, and the threaded rod is connected in the threaded sleeve, and the rubber pad is connected on one side top end of threaded rod, and the humidity detector, temperature detector and formaldehyde detector are arranged on the inner wall of detection box body, and the humidifier air inlet is arranged on one side of humidity detector, and the baffle mechanism is arranged above formaldehyde detector, and the activated carbon filter screen is arranged above baffle mechanism.

[0007] Further, in order to seal the space when detecting formaldehyde, the baffle mechanism includes a baffle one, the baffle one is connected with the baffle two through the rotating rod, the connecting plate is connected on the rotating rod near the baffle two, the connecting plate is connected with the baffle two at the section, the bottom end of rotating rod is connected on the rotating shaft, the rotating rod top end is connected with the rotating plate, the protective sleeve rod is arranged on the outer side of rotating rod, and the sealing bearing is connected between protective sleeve rod and rotating rod.

[0008] Further, in order to make the detected formaldehyde-containing gas filter emission, the protective sleeve rod bottom end is connected at the connection of the baffle one and the baffle two, the protective sleeve rod top end penetrates through the activated carbon filter screen and extends from the detection box top end, the detection box top is provided with an air extractor, the air extractor one end air extraction pipe extends to the detection box inside, the air extractor other end exhaust pipe is connected with the purification box, the purification box outside is provided with an exhaust hole.

[0009] Further, in order to replace the activated carbon filter screen inside the formaldehyde detection equipment periodically, the detection box front is provided with a sealed door one, the sealed door one one end is connected with a handle one, the sealed door one opening position is same with the activated carbon filter screen position, the detection box is provided with a sealed door two near the detection base position, the sealed door two one side is connected with a handle two, the sealed door one and the sealed door two are hinged with the detection box through the hinge.

[0010] Further, in order to realize the formaldehyde detection equipment used for formaldehyde production can be moved, the detection box bottom is connected with a jack, the jack inside is provided with a moving mechanism.

[0011] The moving mechanism comprises a connecting column, the connecting column one end is connected at the detection box bottom, the connecting column other end is connected with an anti-drop disc, the connecting column middle part is sleeved with a circular frame, the circular frame outside bottom is connected with a universal wheel, the circular frame middle position penetrates through a square slot, the connecting column middle part is provided with a clamping rod.

[0012] Further, in order to prevent the formaldehyde-containing gas leakage, the sealed door one, the sealed door two, the air extraction pipe, the exhaust pipe and the protective sleeve rod and the detection box connection part are all provided with rubber rings for strengthening the sealing performance, the detection box top is provided with a rubber ring.

[0013] Further, the sealed door two front is provided with a control panel, the control panel is electrically connected with the heating plate, the air extractor, the humidifier, the humidity detector, the temperature detector and the formaldehyde detector.

[0014] The formaldehyde detection equipment has the advantages that:

[0015] The heating plate and the humidifier can effectively adjust the temperature and humidity in the detection box, provide the formaldehyde detection external environment, facilitate the accurate detection operation of the formaldehyde content of the to-be-detected material, and improve the detection precision.

[0016] The detection box is provided with an activated carbon filter screen to adsorb and avoid the unnecessary influence of residual formaldehyde in the detection box on the next formaldehyde detection result. The handle and rubber ring are arranged, so that the sealing door can be pulled by the staff, and meanwhile, the rubber ring can fill the gap, thereby effectively enhancing the sealing performance of the inside of the detection box and reducing the probability of air leakage. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described in the following are only five of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Figure 1 is the overall structure schematic diagram of the detection equipment for formaldehyde production of the present application;

[0019] Figure 2 is the internal structure schematic diagram of the detection box in the detection equipment for formaldehyde production of the present application;

[0020] Figure 3 is the structure detail view above the detection box in the detection equipment for formaldehyde production of the present application;

[0021] Figure 4 is the partition plate mechanism detail view in the detection equipment for formaldehyde production of the present application;

[0022] Figure 5 is the moving mechanism detail view in the detection equipment for formaldehyde production of the present application.

[0023] In the drawing: 1, detection box; 2, sealing door one; 3, handle one; 4, rubber ring; 5, handle two; 6, suction pipe; 7, air extractor; 8, exhaust pipe; 9, purification tank; 10, humidifier; 11, control panel; 12, sealing door two; 13, jack; 14, moving mechanism; 15, heating plate; 16, detection base; 17, support column; 18, threaded sleeve; 19, threaded rod; 20, humidity detector; 21, temperature detector; 22, formaldehyde detector; 23, partition plate mechanism; 24, activated carbon filter screen; 25, exhaust hole;

[0024] 1401, anti-dropping disc; 1402, circular frame; 1403, universal wheel; 1404, connecting column; 1405, square groove; 1406, clamping rod;

[0025] 2301, partition plate one; 2302, partition plate two; 2303, connecting plate; 2304, protection sleeve rod; 2305, rotating rod; 2306, rotating plate. DETAILED DESCRIPTION

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information. Example

[0029] like Figures 1-4As shown, the formaldehyde detection equipment for formaldehyde production of this utility model includes a detection chamber 1. A heating plate 15 is provided on the bottom wall of the detection chamber 1. The heating plate 15 can adjust the temperature to the most suitable environment for formaldehyde volatilization, used to detect the formaldehyde content in the material to be tested; it can also calculate the time required for formaldehyde volatilization and removal by adjusting different temperatures. A detection base 16 is provided above the heating plate 15. A thermally conductive insulating layer is provided between the detection base 16 and the heating plate 15. Support columns 17 are symmetrically connected to the detection base 16. A threaded sleeve 18 is connected to the top of the support column 17. A threaded rod 19 is threadedly connected inside the threaded sleeve 18. A rubber pad is connected to the top of the threaded rod 19. The movement of the threaded rod 19 within the threaded sleeve 18 allows the formaldehyde content in the material to be detected to be removed. The testing material is firmly fixed on the testing base 16. The inner wall of the testing chamber 1 is equipped with a humidity detector 20, a temperature detector 21, and a formaldehyde detector 22. During use, the formaldehyde detector can detect the formaldehyde concentration of formaldehyde gas, while the humidity detector 20 and temperature detector 21 can monitor the temperature and humidity changes inside the testing chamber in real time. A humidifier 10 has an air inlet on one side of the humidity detector 20. The humidifier 10 heats the water in the water tank through an internal heating block to form water vapor, which is then pumped into the testing chamber 1 through the air inlet by an air pump. A partition mechanism 23 is located above the formaldehyde detector 22, and an activated carbon filter 24 is located above the partition mechanism 23. The partition mechanism 23 includes a first partition 2301 and a second partition 2302. 1. A rotating rod 2305 is connected to a partition 2302. A connecting plate 2303 is connected to the rotating rod 2305 near the partition 2302. One side of the connecting plate 2303 is connected to the cross-section of the partition 2302. The bottom end of the rotating rod 2305 is connected to a rotating shaft. A rotating plate 2306 is connected to the top end of the rotating rod 2305. A protective sleeve rod 2304 is provided on the outside of the rotating rod 2305. A sealed bearing is connected between the protective sleeve rod 2304 and the rotating rod 2305. The bottom end of the protective sleeve rod 2304 is connected to the partition 1 2301. The top end of the protective sleeve rod 2304 extends from the top of the detection chamber 1 through the activated carbon filter 24. The partition mechanism 23 is in a closed state during detection. After the detection is completed, the protective sleeve rod 2306 is rotated. The top rotating rod 2305 handle can open the sealed detection space, allowing the formaldehyde-containing gas to be filtered and discharged. The top of the detection chamber 1 is equipped with an exhaust fan 7. One end of the exhaust fan 7 extends into the interior of the detection chamber 1, and the other end of the exhaust fan 7 is connected to the purification chamber 9 via an exhaust pipe 8. The purification chamber 9 has an exhaust port 25 on its outside and multiple layers of activated carbon filter plates inside. The exhaust fan 7 can draw the gas inside the detection chamber 1 to the outlet. The formaldehyde-containing gas undergoes a first filtration through the activated carbon filter 24, then enters the purification chamber 9 through the exhaust pipe 8 via the exhaust fan 7 for a second filtration, and finally is discharged from the exhaust port 25 of the purification chamber 9, thereby minimizing the pollution of the formaldehyde-containing gas. Example

[0030] likeFigure 1 , Figure 2 , Figure 3 and Figure 5 As shown, this embodiment is obtained by adding technical features such as a sealing door 12, a sealing door 212, and a moving mechanism 14 to the first embodiment: A sealing door 12 is provided on the front of the detection chamber 1, and a handle 13 is connected to one end of the sealing door 12. The opening position of the sealing door 12 is the same as that of the activated carbon filter 24, and the opening size is slightly larger than the size of the activated carbon filter 24. When the activated carbon filter needs to be replaced, simply open the sealing door 12, pull out the old activated carbon filter, and install the new one. It is simple and easy to operate. A sealing door 212 is provided near the detection base 16 of the detection chamber 1, and a handle 25 is connected to one side of the sealing door 212. Operators can open the sealing door 212 to... The material to be tested is placed inside the testing chamber. Sealing door 1 (2) and sealing door 2 (12) are hinged to the testing chamber body 1. A jack 13 is connected to the bottom of the testing chamber body 1, ensuring stable operation of the testing chamber. A moving mechanism 14 is located inside the jack 13. The moving mechanism 14 includes a connecting column 1404, one end of which is connected to the bottom of the testing chamber body 1, and the other end of which is connected to an anti-detachment disc 1401. A circular frame 1402 is fitted into the middle of the connecting column 1404. A caster wheel 1403 is connected to the bottom outer side of the circular frame 1402. A square groove 1405 runs through the middle of the circular frame 1402. A locking rod 1406 is located in the middle of the connecting column 1404. By rotating the circular frame 1402, the locking rod 1406 passes through the square slot 1405, allowing the caster wheel 1403 to touch the ground. After the caster wheel 1403 touches the ground, the locking rod 1406 in the middle of the connecting column 1404 is locked into the small slot above the circular frame 1402 for fixation. When no movement is needed, the circular frame 1402 is rotated in the opposite direction to allow the locking rod 1406 to pass through the square slot 1405 and rotate the locking rod 1406 into a slot on the circular frame 1402 perpendicular to the square slot 1405 (this slot is the same size as the square slot 1405 but does not completely penetrate the circular frame 1402) for fixation. Sealing door 12, sealing door 230, exhaust pipe 6, exhaust pipe 8, partition 230 1. Rubber rings 4 are provided at the connection between the partition 2302 and the protective sleeve rod 2304 and the detection box 1 to enhance the sealing. The top of the detection box 1 is also equipped with rubber rings 4. The rubber rings 4 can fill the gaps, thereby effectively enhancing the sealing of the inside of the detection box and reducing the probability of air leakage. The front of the sealing door 2 12 is equipped with a control panel 11. The control panel 11 is electrically connected to the heating plate 15, the exhaust fan 7, the humidifier 10, the humidity detector 20, the temperature detector 21, and the formaldehyde detector 22. By setting up the control panel 11, it is convenient for staff to view the temperature, humidity changes and formaldehyde gas concentration data, and at the same time, it is also convenient to control the start and stop of each device.

[0031] How to use the overall technical solution formed by the above embodiments:

[0032] When using the device, first open the sealing door 2 (12), place the container containing the formaldehyde material onto the detection base 16, and then rotate the threaded rod 19 according to the size of the container. Stop rotating when the gasket at the end of the threaded rod 19 closest to the container is compressed and deformed. After clamping the container, close the sealing door 2 (12). At this point, the operator can control the start and stop of each device and view temperature and humidity changes, as well as formaldehyde gas concentration data, through the control panel 11. Activating the heating plate 15 and humidifier 10 will heat the formaldehyde material inside the container, increasing the humidity inside the detection chamber. This allows the formaldehyde gas emitted by the material to be released under optimal temperature and humidity conditions. The concentration can also be measured by adjusting the internal humidity and temperature through the control panel 11 to detect the formaldehyde gas concentration emitted by the formaldehyde raw material under the required temperature and humidity conditions at a lower level. After the formaldehyde gas concentration is detected, the operator rotates the lever 2305 to rotate the second partition 2302 into the first partition 2301, and then starts the exhaust fan 7. At this time, the formaldehyde gas is extracted by the exhaust fan 7 and passes through the activated carbon filter 24, the exhaust fan 7, and the purification box 9 to complete the layer-by-layer adsorption and purification before finally being discharged from the exhaust port 25. When it is necessary to replace the activated carbon filter 24 inside the detection box, simply open the sealing door 2, pull out the filter, and push in the new one.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detection device for formaldehyde production, characterized in that, The test chamber (1) includes a heating plate (15) on the bottom wall of the test chamber (1), a test base (16) above the heating plate (15), a thermally conductive insulating layer between the test base (16) and the heating plate (15), a support column (17) symmetrically connected on the test base (16), a threaded sleeve (18) connected to the top of the support column (17), a threaded rod (19) connected to the threaded sleeve (18), a rubber pad connected to the top of one side of the threaded rod (19), a humidity detector (20), a temperature detector (21) and a formaldehyde detector (22) on the inner wall of the test chamber (1), a humidifier (10) air inlet on one side of the humidity detector (20), a partition mechanism (23) above the formaldehyde detector (22), and an activated carbon filter (24) above the partition mechanism (23).

2. The formaldehyde production detection equipment according to claim 1, characterized in that, The partition mechanism (23) includes a partition one (2301), which is connected to a partition two (2302) via a rotating rod (2305). A connecting plate (2303) is connected to the rotating rod (2305) near the partition two (2302). One side of the connecting plate (2303) is connected to the cross section of the partition two (2302). The bottom end of the rotating rod (2305) is connected to a rotating shaft. A rotating plate (2306) is connected to the top end of the rotating rod (2305). A protective sleeve rod (2304) is provided on the outside of the rotating rod (2305). A sealed bearing is provided between the protective sleeve rod (2304) and the rotating rod (2305).

3. The formaldehyde production detection equipment according to claim 2, characterized in that, The bottom end of the protective sleeve rod (2304) is connected to the partition plate (2301). The top end of the protective sleeve rod (2304) extends from the top of the detection box (1) through the activated carbon filter (24). The top of the detection box (1) is equipped with an air extractor (7). The air extraction pipe (6) at one end of the air extractor (7) extends into the inside of the detection box (1). The exhaust pipe (8) at the other end of the air extractor (7) is connected to the purification box (9). The outside of the purification box (9) is equipped with an exhaust hole (25).

4. The formaldehyde production detection equipment according to claim 1, characterized in that, The front of the test chamber (1) is provided with a sealing door (2), and a handle (3) is connected to one end of the sealing door (2). The sealing door (2) is located at the same position as the activated carbon filter (24). The test chamber (1) is provided with a sealing door (12) near the test base (16). A handle (5) is connected to one side of the sealing door (12). The sealing door (2) and the sealing door (12) are hinged to the test chamber (1) by hinges.

5. The formaldehyde detection equipment according to claim 1, characterized in that, The bottom of the test box (1) is connected to a jack (13), and a moving mechanism (14) is provided inside the jack (13). The moving mechanism (14) includes a connecting column (1404), one end of which is connected to the bottom of the detection box (1), and the other end of which is connected to an anti-detachment disc (1401). A circular frame (1402) is sleeved in the middle of the connecting column (1404), and a caster wheel (1403) is connected to the bottom of the outer side of the circular frame (1402). A square groove (1405) runs through the middle of the circular frame (1402), and a locking rod (1406) is provided in the middle of the connecting column (1404).

6. The formaldehyde production detection equipment according to claim 4, characterized in that, The sealing door 1 (2), sealing door 2 (12), air extraction pipe (6), exhaust pipe (8) and protective sleeve rod (2304) are all provided with rubber rings (4) to enhance the sealing at the connection with the test box (1), and the test box (1) is provided with rubber rings (4).

7. The formaldehyde production detection equipment according to claim 4, characterized in that, The front of the sealed door 2 (12) is equipped with a control panel (11), which is electrically connected to the heating plate (15), the exhaust fan (7), the humidifier (10), the humidity detector (20), the temperature detector (21) and the formaldehyde detector (22).