CN221007485U

CN221007485U - Assembled pumping gas detection device

Info

Publication number: CN221007485U
Application number: CN202322505167.0U
Authority: CN
Inventors: 袁东
Original assignee: Binzhou Ecological Environment Service Center
Current assignee: Binzhou Ecological Environment Service Center
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-05-24
Anticipated expiration: 2033-09-14

Abstract

An assembled pumping gas detection device relates to the technical field of gas detection equipment, and comprises a shell, an air pump and a main control board; the shell comprises a shell body, a top cover detachably arranged at the top of the shell body and a bottom cover detachably arranged at the bottom of the shell body, wherein an air inlet end is arranged on the top cover, and an air outlet end is arranged on the bottom cover; the air inlet hole of the air pump is communicated with the air inlet end; the main control board is provided with an air chamber, a TVOC sensor is arranged in the air chamber, and the air chamber is communicated between an air outlet hole and an air outlet end of the air pump. The utility model can perform active inspiration type detection on the TVOC concentration in the air, improves the detection efficiency, shortens the detection time and improves the detection accuracy.

Description

Assembled pumping gas detection device

Technical Field

The utility model relates to the technical field of gas detection equipment, in particular to an assembled pumping gas detection device.

Background

TVOC is one of the three types of pollution that affects air quality more severely. TVOC is an organic substance with saturated vapor pressure exceeding 133.32pa at room temperature, the boiling point of the organic substance is 50-250 ℃, the organic substance can be evaporated at normal temperature and exists in the air, and the organic substance has toxicity, irritation, carcinogenicity and special odor, can influence skin and mucous membrane and can cause acute damage to human body.

Because TVOC is various in composition, the detection difficulty is high, and the mechanisms and equipment for accurately measuring the pollutant in China are fewer at present. The technical equipment for detecting TVOC has higher requirements, and gas chromatography is usually adopted, but Fourier transform infrared spectroscopy, fluorescence spectroscopy, ion chromatography, reflection interference spectroscopy, solid polymer electrochemical principles and the like are also adopted.

At present, indoor air detection is generally carried out by carrying out gas sampling on site through a gas collecting device, taking the collected gas sample back to a laboratory, analyzing the adopted gas components through a spectrophotometer, a gas chromatograph and other instruments, and realizing gas detection, wherein the defects of high cost and low efficiency exist.

With the development of gas sensor technology, in recent years, portable devices for detecting indoor air quality based on gas sensors have been developed in the market, so that air detection can be performed on site rapidly, and the cost is low and the efficiency is high. However, the method for detecting the gas is a passive detection method, namely, the sensor is exposed in the air to detect the TVOC concentration in the air, and the detection method has no influence on the outdoor environment, but when the sensor is used in the indoor environment, the correction difficulty of the sensor is improved due to unstable air flow and temperature and humidity, the inaccurate detection result is easily caused, and the problems of long detection time and low detection efficiency exist.

Disclosure of utility model

In view of this, the technical problems to be solved by the present utility model are: the utility model provides an assembled pumping gas detection device can carry out initiative inspiration formula to the TVOC concentration in the air and detect, improves detection efficiency, shortens detection time, improves the detection accuracy.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

An assembled pumping gas detection apparatus comprising:

The shell comprises a shell body, a top cover detachably arranged at the top of the shell body and a bottom cover detachably arranged at the bottom of the shell body, wherein an air inlet end is arranged on the top cover, and an air outlet end is arranged on the bottom cover;

the air pump is arranged in the shell, and an air inlet hole of the air pump is communicated with the air inlet end;

The air conditioner comprises a shell, a main control board arranged in the shell, and an air chamber arranged on the main control board, wherein a TVOC sensor is arranged in the air chamber, and the air chamber is communicated between an air outlet hole of the air pump and the air outlet end.

Preferably, the top cover is provided with a plurality of buckles, and the shell is provided with clamping grooves matched with the buckles.

Preferably, an air inlet cavity communicated with the air inlet end is arranged on the inner side of the top cover, and the air inlet cavity is communicated with an air inlet hole of the air pump.

Preferably, an insect prevention filter screen is arranged in the air inlet cavity.

Preferably, an electromagnetic valve is further arranged in the shell;

The electromagnetic valve comprises a first air inlet, a second air inlet and an air outlet, wherein the first air inlet is communicated with the air inlet cavity, and the air outlet is communicated with an air inlet hole of the air pump.

Preferably, the second air inlet is communicated with one end of the deodorizing tube, and the other end of the deodorizing tube is communicated with the outside.

Preferably, a mounting plate is arranged in the shell, a partition plate is arranged on the bottom cover, and the partition plate is matched with the mounting plate to divide the interior of the bottom cover into a first area and a second area which are mutually independent;

One end of the air chamber is communicated with the air outlet hole of the air pump, the other end of the air chamber is communicated with the first area, and the air outlet end is communicated with the first area.

Preferably, the bottom cover is inserted into the bottom of the shell, and at least two sealing rings are arranged between the bottom cover and the shell.

Preferably, the air chamber comprises an air inlet cover fixedly arranged on the upper surface of the main control board and an air outlet cover fixedly arranged on the lower surface of the main control board, the air inlet cover is identical to the air outlet cover in structure and is in mirror symmetry along the main control board, and the air outlet cover is communicated with the first area.

Preferably, the TVOC sensor is located inside the air inlet cover, at least one air vent is formed in the main control board, and the air vent is used for communicating the air inlet cover with the air outlet cover.

After the technical scheme is adopted, the utility model has the beneficial effects that:

Because the utility model is provided with the shell, the shell comprises a shell body, a top cover and a bottom cover, the top cover is provided with an air inlet end, and the bottom cover is provided with an air outlet end; the air inlet hole of the air pump is communicated with the air inlet end; the main control board is provided with an air chamber, a TVOC sensor is arranged in the air chamber, and the air chamber is communicated between an air outlet hole and an air outlet end of the air pump. Air in the external environment can be sucked by the air pump through the air inlet end and is discharged into the air chamber through the air outlet hole of the air pump, the TVOC concentration in the air can be detected by the TVOC sensor, and the TVOC concentration in the current environment is obtained; meanwhile, the detection efficiency is improved, and the detection time is shortened.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of an assembled pumping gas detection apparatus according to an embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view in one direction of FIG. 1;

FIG. 4 is a cross-sectional view in another direction of FIG. 1;

FIG. 5 is a schematic view of the structure of the top cover of FIG. 1;

FIG. 6 is a schematic diagram of a main control board according to an embodiment of the present utility model;

FIG. 7 is a cross-sectional view A-A of FIG. 6;

In the figure:

1. A housing; 11. a housing; 111. a clamping groove; 112. a mounting plate; 113. an arc clamping plate; 12. a top cover; 121. a buckle; 122. an air inlet cavity; 13. a bottom cover; 131. a partition plate; 14. an air inlet end; 15. an air outlet end;

2. An air pump;

3. A main control board; 31. a gas chamber; 311. an air inlet cover; 312. an air outlet cover; 313. ventilation holes; 32. TVOC sensor; 33. a control module; 34. a power supply module; 35. a wireless communication module; 36. a battery; 37. an external antenna;

4. Insect prevention filter screen;

5. An electromagnetic valve; 51. a first air inlet; 52. a second air inlet; 53. an air outlet;

6. A deodorizing tube;

71. a first region; 72. a second region; 73. a seal ring;

the hollow arrows in the figure represent the direction of flow of the gas.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The terms such as "front", "rear", "left", "right", "top", "bottom", "middle" and the like are also used in the present specification for convenience of description, and are not intended to limit the scope of the present utility model, but rather to change or adjust the relative relationship thereof, without substantially changing the technical content, and are considered to be within the scope of the present utility model.

As shown in fig. 1 to 7, the utility model comprises a shell 1, an air pump 2 and a main control board 3; the shell 1 comprises a shell 11, a top cover 12 detachably arranged at the top of the shell 11 and a bottom cover 13 detachably arranged at the bottom of the shell 11, wherein an air inlet end 14 is arranged on the top cover 12, and an air outlet end 15 is arranged on the bottom cover 13; the air pump 2 is arranged in the shell 11, and an air inlet hole of the air pump 2 is communicated with the air inlet end 14; the main control board 3 is arranged in the shell 11, the main control board 3 is provided with an air chamber 31, a TVOC sensor 32 is arranged in the air chamber 31, and the air chamber 31 is communicated between the air outlet hole of the air pump 2 and the air outlet end 15.

The main control board 3 is also provided with a control module 33, a power supply module 34 and a wireless communication module 35, the TVOC sensor 32, the power supply module 34 and the wireless communication module 35 are respectively and electrically connected with the control module 33, the power supply module 34 is electrically connected with a battery 36, and the wireless communication module 35 is electrically connected with an external antenna 37. The TVOC sensor 32 obtains the TVOC concentration in the air, the detected data is sent to the control module 33 and processed, and the detected data is sent to an external receiving device by the wireless communication module 35 and the external antenna 37 for data reception, so as to obtain the TVOC value in the current environment, which is a well-known technique in the art, and the specific process is not repeated here.

Air in the external environment can be sucked by the air pump 2 through the air inlet end 14 and is discharged into the air chamber 31 through the air outlet hole of the air pump 2, the TVOC concentration in the air can be detected by the TVOC sensor 32, and the TVOC concentration in the current environment is obtained; meanwhile, the air flow rate is increased by pumping air intake, the detection efficiency is improved, and the detection time is shortened.

For the present utility model, the top cover 12 is provided with a plurality of buckles 121, and the housing 11 is provided with a clamping groove 111 adapted to the buckles 121. When the top cover 12 is detachably mounted on the top of the shell 11, the buckle 121 can be directly clamped in the clamping groove 111, so that clamping and fixing are realized, and the requirement of detachable connection is met.

The inside of the top cover 12 is provided with an air inlet cavity 122 communicated with the air inlet end 14, the air inlet cavity 122 is communicated with an air inlet hole of the air pump 2, and in order to improve the use stability of the utility model, the inside of the air inlet cavity 122 is provided with an insect prevention filter screen 4.

As shown collectively in fig. 2 to 4, the interior of the housing 11 is also provided with a solenoid valve 5; the electromagnetic valve 5 comprises a first air inlet 51, a second air inlet 52 and an air outlet 53, wherein the first air inlet 51 is communicated with the air inlet cavity 122, and the air outlet 53 is communicated with the air inlet hole of the air pump 2.

The second air inlet 52 communicates with one end of the deodorizing tube 6, and the other end of the deodorizing tube 6 communicates with the outside.

The electromagnetic valve 5 is controlled by the control module 33 and is used for switching the gas entering the air pump 2 from the first air inlet 51 or the gas entering the air pump 2 from the second air inlet 52; after the TVOC sensor 32 detects the TVOC concentration in the current environment, the electromagnetic valve 5 switches the gas to enter the air pump 2 through the second air inlet 52 from the deodorizing tube 6, and discharges the residual gas in the current environment in each air delivery tube, so as to remove the malodorous gas contained in the air when the present utility model is used, wherein the deodorizing tube 6 is filled with high-activity activated carbon, so that the malodorous gas in the current environment can be adsorbed to become clean gas, and the clean requirement of removing the malodorous gas is met.

As shown in fig. 2, the housing 11 is provided with a mounting plate 112 inside, the bottom cover 13 is provided with a partition plate 131, and the partition plate 131 cooperates with the mounting plate 112 to divide the inside of the bottom cover 13 into a first area 71 and a second area 72 which are independent of each other; the main control board 3 is mounted on the mounting board 112, at least one clamping assembly is further arranged on the mounting board 112, the clamping assembly comprises two arc clamping plates 113 which are oppositely arranged and have the same structure, and the two arc clamping plates 113 are mutually matched to clamp and fix the external antenna 37; one end of the air chamber 31 communicates with the air outlet hole of the air pump 2, the other end of the air chamber 31 communicates with the first region 71, the air outlet end 15 communicates with the first region 71, and the battery 36 is mounted in the second region 72.

In the utility model, the bottom cover 13 is inserted into the bottom of the shell 11, and at least two sealing rings 73 are arranged between the bottom cover 13 and the shell 11, so that the sealing effect is enhanced.

As shown in fig. 7, the air chamber 31 includes an air inlet cover 311 fixed on the upper surface of the main control board 3, and an air outlet cover 312 fixed on the lower surface of the main control board 3, where the air inlet cover 311 and the air outlet cover 312 have the same structure and are mirror symmetry along the main control board 3, and the air outlet cover 312 is communicated with the first area 71.

The TVOC sensor 32 is located inside the air inlet cover 311, and at least one air vent 313 is formed in the main control board 3, and the air vent 313 communicates the air inlet cover 311 with the air outlet cover 312.

After the air pump 2 pumps the air into the air inlet hood 311, the air is detected by the TVOC sensor 32, and the detected air enters the air outlet hood 312 through the air holes 313 and is discharged into the first area 71, and is then discharged through the air outlet end 15.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. An assembled pumping gas detection apparatus, comprising:

2. An assembled pumping gas detection device as defined in claim 1, wherein the top cover is provided with a plurality of buckles, and the housing is provided with clamping grooves matched with the buckles.

3. An assembled pumping gas detection apparatus as defined in claim 1, wherein an air intake chamber is provided on the inside of the top cover in communication with the air intake end, the air intake chamber being in communication with the air intake hole of the air pump.

4. A modular pumping gas detection apparatus as defined in claim 3 wherein an insect screen is provided within the intake chamber.

5. A modular pumping gas detection apparatus as claimed in claim 3 wherein the interior of the housing is further provided with a solenoid valve;

6. An assembled pumping gas detection apparatus as defined in claim 5 wherein the second inlet communicates with one end of a deodorizing tube, and the other end of the deodorizing tube communicates with the outside.

7. An assembled pumping gas detection apparatus as defined in claim 1, wherein a mounting plate is provided inside the housing, and a partition plate is provided on the bottom cover, the partition plate cooperates with the mounting plate to divide the inside of the bottom cover into a first region and a second region that are independent of each other;

8. An assembled pumping gas detection apparatus as defined in claim 7 wherein the bottom cover is inserted into the bottom of the housing, and at least two sealing rings are provided between the bottom cover and the housing.

9. An assembled pumping gas detection device according to claim 7, wherein the air chamber comprises an air inlet cover fixedly arranged on the upper surface of the main control board and an air outlet cover fixedly arranged on the lower surface of the main control board, the air inlet cover and the air outlet cover have the same structure and are in mirror symmetry along the main control board, and the air outlet cover is communicated with the first area.

10. An assembled pumping gas detection device according to claim 9, wherein the TVOC sensor is located inside the inlet housing, and the main control board is provided with at least one ventilation hole, and the ventilation hole communicates the inlet housing with the outlet housing.