TWM480068U - Volatile organics inspection device - Google Patents

Description

Volatile organic compound detecting device

This creation is directed to a detection device, particularly a volatile organic compound detection device for detecting volatile organic compounds in the environment.

Volatile organic compounds (VOCs) are organic compounds that have a higher vapor pressure at room temperature. These organic compounds have a lower boiling point, which is often formed by evaporation or sublimation in the environment. In the surrounding air.

Formaldehyde is one of the volatile organic compounds that are easily accessible in daily life. It is often used as a binder in the manufacture of artificial boards (eg, plywood, pellets or fiberboards); however, formaldehyde is volatile. The characteristics will cause formaldehyde to be slowly and continuously released into the environment from the artificial plates, which may cause harm to the human body, such as inducing chronic respiratory diseases or even causing cancer lesions. Therefore, monitoring the concentration of volatile organic compounds such as formaldehyde in the environment to improve indoor air quality is an urgent task.

Referring to FIG. 1 , it is a schematic diagram of a conventional volatile organic compound detecting device 9 . The conventional volatile organic compound detecting device 9 includes an intake pipe 91 , a detecting unit 92 and an exhaust pipe 93 . The intake pipe 91 and the exhaust pipe 93 are respectively located at opposite ends of the detecting unit 92. The conventional volatile organic compound detecting device 9 further includes a pump 94, and the pump 94 is located in the intake pipe 91. An external gas (such as air) is drawn into the detecting unit 92 along the air inlet pipe 91 to detect the content of the volatile organic compound contained in the gas by using the detecting unit 92, and the detected gas may be along the Exhaust pipe 93 is excluded from the study The device 9 is detected with a volatile organic compound.

However, as the use time of the conventional volatile organic compound detecting device 9 is elongated, a large amount of volatile organic compounds may adhere to the detecting unit 92, thereby causing the detecting unit 92 to continue to be attached thereto when it acts. Interference with volatile organic compounds reduces their detection accuracy.

The main purpose of this creation is to provide a volatile organic compound detection device that eliminates the residue of volatile organic compounds and enhances the detection accuracy of the volatile organic compound detection device.

Another object of the present invention is to provide a volatile organic compound detecting device which has a self-cleaning function without affecting the subsequent measurement accuracy, and can prevent the residual of volatile organic compounds from causing damage to the volatile organic compound detecting device. .

In order to achieve the above-mentioned creative purposes, the technical means utilized by the present invention and the functions achievable by the technical means include: a volatile organic compound detecting device comprising: a gas detecting component comprising an intake pipe and a a detecting unit and an exhaust pipe, wherein the air inlet pipe and the exhaust pipe system are respectively located at opposite ends of the detecting unit, and the gas detecting component further comprises a three-way valve and a pump, the three-way valve and the gang The gas detecting component further comprises an air inlet pipe, wherein the gas inlet pipe is connected to the detecting unit via the three-way valve, and the air inlet pipe is provided with a filter member.

The volatile organic compound detecting device of the present invention, wherein the pump is preferably located between the three-way valve and the detecting unit.

The volatile organic compound detecting device of the present invention, wherein the volatile organic compound detecting device further comprises a control unit electrically connected to the pump, the detecting unit and the three-way valve.

The volatile organic compound detecting device of the present invention, wherein the volatile organic compound detecting device preferably further comprises a display unit electrically connected to the control unit.

The volatile organic compound detecting device of the present invention, wherein the volatile organic compound detecting device further comprises a detecting unit, the detecting unit is electrically connected to the display unit, and the detecting unit is preferably located in the detecting unit The air inlet pipe is located between the detecting unit and the three-way valve.

The volatile organic compound detecting device of the present invention has an air inlet pipe connected to the detecting unit, and the air inlet pipe is provided with a filter member, and the clean gas filtered through the filter member is introduced into the detecting unit through the air inlet pipe to The detection unit is cleaned to prevent the detection unit from remaining excessive volatile organic compounds, thereby improving the detection accuracy of the volatile organic compound detection device for volatile organic compounds.

The volatile organic compound detecting device of the present invention is configured to electrically adjust the flow direction of the gas flowing through the three-way valve according to the use condition of the detecting unit by electrically connecting the detecting unit and the control unit of the three-way valve to prevent evaporation. The residue of the organic compound causes damage to the detection unit, and the effect of prolonging the service life of the volatile organic compound detection device can be achieved.

The VOC detecting device of the present invention has a detecting unit electrically connected to the control unit, and the detecting unit can be used for detecting the concentration of carbon dioxide in the environment, so that the volatile organic compound detecting device can be all aspects. By measuring the air index substances in the environment, users can more effectively grasp the indoor air quality, which is the effect of the creation.

[this creation]

1‧‧‧Gas detection components

11‧‧‧Intake pipe

12‧‧‧Detection unit

13‧‧‧Exhaust pipe

14‧‧‧Intake air tube

141‧‧‧Filter

15‧‧‧Detection unit

2‧‧‧Control unit

3‧‧‧Display unit

H‧‧‧shell

P‧‧‧ pump

V‧‧‧ three-way valve

[study]

9‧‧‧Used volatile organic compound detection device

91‧‧‧Intake pipe

92‧‧‧Detection unit

93‧‧‧Exhaust pipe

94‧‧‧

Figure 1 is a schematic view of a conventional volatile organic compound detecting device.

Fig. 2 is a schematic view showing a first embodiment of the present volatile organic compound detecting device.

Fig. 3 is a schematic view showing a second embodiment of the present volatile organic compound detecting apparatus.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to FIG. 2, a first embodiment of the present invention relates to a volatile organic compound detecting apparatus, wherein the volatile organic compound detecting apparatus comprises a gas detecting unit 1.

In the first embodiment, the gas detecting component 1 includes an intake pipe 11, a detecting unit 12 and an exhaust pipe 13, and the intake pipe 11 and the exhaust pipe 13 are respectively located at the opposite side of the detecting unit 12. So that the outside air can flow into the detecting unit 12 through the air inlet pipe 11, so that the detecting unit 12 can detect the volatile organic compound contained in the gas, and the detected gas can pass through the exhaust pipe. 13 flows out of the detection unit 12. The gas detecting assembly 1 is further provided with a pump P that communicates with the intake pipe 11 to draw gas from the outside into the detecting unit 12.

The gas detecting component 1 further includes an air inlet pipe 14 connected to the external environment and the detecting unit 12, and the air inlet pipe 14 preferably also draws a gas from the outside into the detecting unit 12 by a pump. In the present embodiment, the air intake pipe 14 shares the pump P with the intake pipe 11. Moreover, the air inlet tube 14 is provided with a filter member 141 for filtering volatile organic compounds contained in the gas flowing into the air inlet tube 14 to obtain a relatively clean gas (hereinafter referred to as "clean gas"); the filter member 141 The activated carbon material may be selected to adsorb and remove volatile organic compounds contained in the gas by the surface activity of the activated carbon to obtain the clean gas.

In order to control the flow direction of the gas, the gas detecting component 1 is preferably provided with a three-way valve V that communicates with the intake pipe 11 and the intake pipe 14 from the intake pipe 11 and the intake pipe. 14 the inflowing gas can flow into the detecting unit 12 via the three-way valve V, By adjusting the valve direction of the three-way valve V, the source of gas flowing into the detecting unit 12 (i.e., the gas from the intake pipe 11 or the clean gas from the intake pipe 14) can be controlled. Preferably, the pump P is disposed between the three-way valve V and the detecting unit 12, so that only a single pump P is required, that is, gas that can simultaneously act on the air inlet pipe 11 and the air inlet pipe 14 .

The above-mentioned volatile organic compound detecting device may further comprise a control unit 2, which is electrically connected to the pump P to control the start and pause of the pump P, and the control unit 2 may also be electrically connected to the three The valve V is controlled to control the valve direction of the three-way valve V, thereby controlling the gas source flowing into the detecting unit 12; further, the control unit 2 can be electrically connected to the detecting unit 12 to know the residual volatilization of the detecting unit 12 The organic compound content, and then the signal is transmitted to the three-way valve V, to control the valve direction of the three-way valve V, so that the clean gas flowing through the filter member 141 can flow to the detecting unit 12 to remove the accumulated The volatile organic compound of the unit 12 is detected, and the volatile organic compound detecting device of the present embodiment has a self-cleaning function.

The VOC detecting device further includes a display unit 3 electrically connected to the control unit 2, and the signal received by the control unit 2 can be displayed on the display unit 3, and the user can use the display unit 3 I know if the current indoor air quality is in the normal range.

In order to prevent the external environment from being disturbed and affecting the accuracy of the detecting unit 12, the inventive volatile organic compound detecting device preferably further includes a casing H, and the gas detecting component 1, the control unit 2 and the display unit 3 are disposed on the shell. Within the body H, and only the intake pipe 11, the exhaust pipe 13, and the air inlet pipe 14 of the gas detecting assembly 1 are in communication with the outside air, which will be understood by those skilled in the art, and will not be described again.

In addition, in addition to the above volatile organic compounds, carbon dioxide is also one of the indicators of indoor air quality. When the indoor density is too high, or the indoor ventilation efficiency is not good, it will cause the accumulation of carbon dioxide concentration in the indoor environment. Air quality carbon dioxide recommended thick The degree is below 1000 ppm (the second type of place).

Please refer to FIG. 3 , which is a second embodiment of the inventive volatile organic compound detecting device; wherein the second embodiment also includes a housing H, a gas detecting component 1 , a control unit 2 and a display unit 3 . The connection between the gas detecting component 1, the control unit 2 and the display unit 3 is the same as that of the first embodiment, and will not be described again.

In the second embodiment, the volatile organic compound detecting device further includes a detecting unit 15 electrically connected to the control unit 2, and the control unit 2 is used to transmit the measured information. To display unit 3.

In addition, in the second embodiment, the detecting unit 15 can be located in the air inlet tube 14 to detect the carbon dioxide content in the air entering the air inlet tube 14. At this time, the detecting unit 15 should be disposed adjacent to the air inlet tube 14. The position of the housing H is such that the filter member 141 is located between the detecting unit 15 and the three-way valve V to prevent the detecting unit 15 from measuring the concentration of carbon dioxide contained in the clean gas filtered by the filter member 141; The detecting unit 15 can also be disposed outside the housing H, or the detecting unit 15 is disposed in the housing H, and the housing H is disposed at an opening of the detecting unit 15 (Fig. The detection unit 15 is only required to make the detection unit 15 be in contact with the outside air to detect the content of carbon dioxide contained in the outside air. The detection unit can be changed by those skilled in the art. The position of 15 is not limited here.

In the second embodiment, the user can simultaneously measure the volatile organic compounds contained in the outside air by the detecting unit 12, and can also know the carbon dioxide content in the outside air by the detecting unit 15, and the user can borrow The air index substance in the environment is monitored by the display unit 3.

In summary, the volatile organic compound detecting device of the present invention has an air inlet pipe connected to the detecting unit, and the air inlet pipe is provided with a filter member, and the clean gas filtered through the filter member is introduced into the detecting through the air inlet pipe. a unit for cleaning the detection unit to prevent the detection unit from remaining excessive volatile organic compounds, thereby improving the volatile organic compound detection device The efficacy of the detection accuracy of volatile organic compounds.

Furthermore, the volatile organic compound detecting device of the present invention is configured to electrically adjust the flow direction of the gas flowing through the three-way valve according to the use condition of the detecting unit by electrically connecting the detecting unit and the control unit of the three-way valve, respectively. In order to prevent damage to the detection unit caused by the residual of volatile organic compounds, the effect of prolonging the service life of the volatile organic compound detection device can be achieved.

In addition, the VOC detecting device of the present invention has a detecting unit electrically connected to the control unit, and the detecting unit can be used for detecting the concentration of carbon dioxide in the environment, so that the volatile organic compound detecting device can By measuring the air index substances in the environment in all aspects, the user can more effectively grasp the indoor air quality, which is the effect of the creation.

Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧Gas detection components

11‧‧‧Intake pipe

12‧‧‧Detection unit

13‧‧‧Exhaust pipe

14‧‧‧Intake air tube

141‧‧‧Filter

2‧‧‧Control unit

3‧‧‧Display unit

H‧‧‧shell

P‧‧‧ pump

V‧‧‧ three-way valve

Claims (6)

A volatile organic compound detecting device comprises: a gas detecting component comprising an intake pipe, a detecting unit and an exhaust pipe, wherein the intake pipe and the exhaust pipe are respectively located at opposite ends of the detecting unit The gas detecting component further includes a three-way valve and a pump, wherein the three-way valve and the pump are connected to the intake pipe; wherein the gas detecting component further comprises an air inlet pipe, and the air inlet pipe is connected to the air pipe The valve is connected to the detecting unit, and the air inlet pipe is provided with a filter. The volatile organic compound detecting device according to claim 1, wherein the pump is located between the three-way valve and the detecting unit. The volatile organic compound detecting device according to claim 1 or 2, wherein the volatile organic compound detecting device further comprises a control unit electrically connected to the pump, the detecting unit and the three-way valve. The volatile organic compound detecting device according to claim 3, wherein the volatile organic compound detecting device further comprises a display unit electrically connected to the control unit. The volatile organic compound detecting device of claim 4, wherein the volatile organic compound detecting device further comprises a detecting unit electrically connected to the display unit. The volatile organic compound detecting device according to claim 5, wherein the detecting unit is located in the air inlet pipe, and the filter member is located between the detecting unit and the three-way valve.