VOCs detection device

Abstract

The utility model discloses a VOCs (Volatile Organic Compounds) detection device and relates to the technical field of VOCs detection equipment. Comprising a detection cabinet, a VOCs detection instrument is arranged in the detection cabinet, and the VOCs detection instrument is communicated with a detection port formed in one side of the detection cabinet; the automatic calibration mechanism comprises a storage box, a calibration assembly and a control assembly, wherein the calibration assembly and the control assembly are arranged in the storage box. After the detection cabinet is used for a period of time, standard gas can be automatically output to the detection port through the calibration assembly, so that an internal VOCs detection instrument can be calibrated, it is ensured that the VOCs detection instrument is always in an optimal calibration state, and the accuracy and reliability of detection data are improved. The problems that according to a traditional VOCs sampling instrument, standard gas needs to be carried regularly to calibrate a detection device, the workload of operators is increased, and operation is inconvenient in a special use scene are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to VOCs detection equipment technical field, especially VOCs detection device. BACKGROUND

[0002] VOCS is volatile organic matter, generally refers to any volatile organic solid or liquid at normal temperature and pressure, the most common ones are benzene, toluene, xylene, styrene, trichloroethylene, trichloromethane, trichloroethane, diisocyanate (TDI), diisocyanate toluene, etc., the gas concentration is too high and is easy to cause acute poisoning, light will appear headache, dizziness, cough, nausea, vomiting or appear drunk. Heavy will appear liver poisoning and even quickly coma, some can also have life danger, therefore, in the industrial production process, needs to use the special equipment to carry out real-time monitoring to the waste gas data of VOCS.

[0003] At present, mainly through the use of volatile organic matter sampler VOCs sampling instrument to the waste gas data of VOCS real-time monitoring, volatile organic matter sampler VOCs sampling instrument as a high-precision portable flue gas flow rate detector, is widely used in the determination of flue gas flow rate, flue gas flow, standard dry flow, dynamic pressure, static pressure and smoke temperature and other parameters of boiler, furnace and various exhaust ducts. Its specific like in the authorized disclosure no. CN218297709U's utility model patent disclosed environmental monitoring waste gas VOCS sampling instrument, the sampling instrument can be fixed on the mounting plate by setting mounting plate, support frame and support leg assembly, when long-time accurate monitoring of waste gas, to free the hands, do not need to hold the detector to monitor the air, greatly reduce the labor; however, as described above, the sampling instrument in use, in order to ensure the accuracy of sampling instrument detection results, the need for staff to carry standard gas to calibrate the detector regularly, but each calibration needs to carry standard gas tank, increases the work burden of the operator, especially in the complex environment of monitoring place, such as underground or high altitude environment, operation is very inconvenient.

[0004] Based on this, the utility model provides a VOCs detection device to solve the problems existing in the prior art. UTILITY MODEL CONTENT

[0005] Therefore, the main purpose of the utility model is to provide a VOCs detection device to solve the problems of traditional VOCs sampling instrument, such as the need to carry standard gas to calibrate the detection device regularly, increase the work burden of the operator and inconvenient operation in special use scenarios.

[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] A VOCs detection device, comprising:

[0008] A detection cabinet, wherein a VOCs detection instrument is arranged in the detection cabinet and is communicated with a detection port arranged on one side of the detection cabinet;

[0009] An automatic calibration mechanism, comprising:

[0010] A storage box arranged on one side of the detection cabinet close to the detection port;

[0011] A calibration assembly arranged in the storage box and matched with a control assembly arranged in the storage box.

[0012] In a preferred embodiment, the calibration assembly comprises:

[0013] A sealing tube slidingly arranged in the storage box, one end of which extends out of the storage box, and a plurality of discharge holes are arranged on the sealing tube close to the detection port;

[0014] An electric telescopic rod arranged on the top of the storage box, and an output end of the electric telescopic rod extends to one side of the sealing tube.

[0015] In a preferred embodiment, the other end of the sealing tube is provided with a moving plate, and the output end of the electric telescopic rod is connected with the moving plate.

[0016] In a preferred embodiment, both sides of the moving plate are slidingly connected with the inner wall of the storage box.

[0017] In a preferred embodiment, the plurality of discharge holes are arranged through the side wall of the sealing tube, are communicated with the inner cavity of the sealing tube, and are matched with the detection port.

[0018] In a preferred embodiment, the top of the storage box is further provided with an air pump, an output end of the air pump extends into the storage box, and the output end of the air pump is located on the top of the sealing tube.

[0019] In a preferred embodiment, the top of the detection cabinet is further provided with a protective shell, and both sides of the top of the protective shell are inclined surfaces.

[0020] In a preferred embodiment, the control assembly comprises:

[0021] A guide rod arranged in the storage box, slidingly sleeved with the moving plate, and provided with a trigger controller at the bottom end of the guide rod;

[0022] A spring sleeved on the outside of the guide rod, and both ends of the spring are connected with the moving plate and the inner wall of the storage box, respectively.

[0023] In a preferred embodiment, an electric one-way rotating plate is further arranged in the sealing tube, and the electric one-way rotating plate is located on the top of the plurality of discharge holes.

[0024] In a preferred embodiment, one side of the detection cabinet is also hingedly provided with a cabinet door.

[0025] Compared with the prior art, the VOCs detection device has the following beneficial effects:

[0026] 1. The detection device is provided with an automatic calibration mechanism, which can automatically output standard gas from the detection port after the detection cabinet is used for a period of time, so that the internal VOCs detection instrument can be calibrated, ensuring that the VOCs detection instrument is always in the best calibration state, improving the accuracy and reliability of the detection data, and without manual operation, greatly improving the calibration efficiency; the control component can accurately control the discharge of standard gas, reducing gas waste; and the problem of the need to carry standard gas for calibration of the detection device at regular intervals in the traditional VOCs sampling instrument is overcome, the workload of the operator is increased, and the operation is inconvenient in special use scenarios.

[0027] 2. When the moving plate moves to a specified position, it is in contact with the trigger controller, so that the electric telescopic rod is stopped, and the air pump is started to output standard gas for calibration, avoiding the problem of inaccurate output of standard gas due to position deviation, and when the trigger controller is triggered, the electric one-way rotating plate is controlled to open, so that multiple discharge holes are in communication with the inside of the storage tank, thereby releasing standard gas on demand, avoiding gas leakage or invalid release. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0029] Figure 1 It is a schematic diagram of the main structure of the VOCs detection device of the present application;

[0030] Figure 2 It is a schematic diagram of the automatic calibration mechanism of the present application;

[0031] Figure 3 It is a sectional view of the automatic calibration mechanism of the present application;

[0032] Figure 4 It is a schematic diagram of the calibration assembly structure of the present application;

[0033] Figure 5 It is a schematic diagram of the control assembly structure of the present application.

[0034] [Main component symbol explanation]

[0035] 1. Detection cabinet; 11. Protective shell; 12. Detection port;

[0036] 2. Cabinet door;

[0037] 3. Automatic calibration mechanism; 31. Storage box; 32. Calibration assembly; 321. Sealed tube; 322. Moving plate; 323. Electric telescopic rod; 324. Discharge hole; 325. Air pump; 33. Control assembly; 331. Guide rod; 332. Trigger controller; 333. Spring; 334. Electric one-way rotating plate. DETAILED DESCRIPTION

[0038] The structure of the VOCs detection device will be further described in detail below in combination with the drawings and embodiments of the present application.

[0039] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0040] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments of the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of the features, steps, operations, devices, components and / or combinations thereof.

[0041] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units listed, but can include other steps or units not listed or inherent to these processes, methods, products or devices.

[0042] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0043] As shown in the accompanying drawings for Figures 1-5 The utility model provides a technical scheme:

[0044] A VOCs detection device, including: detection cabinet 1 for carrying out VOCs waste gas detection, one side of detection cabinet 1 is equipped with detection port 12, and still hingedly installed with cabinet door 2 on one side of detection cabinet 1, still including the automatic calibration mechanism 3 for carrying out calibration to the periodic release calibration gas of setting in detection port 12 side, automatic calibration mechanism 3 includes the storage box 31 of fixed installation in one side of detection cabinet 1, the inside of storage box 31 is provided with calibration assembly 32, one side of calibration assembly 32 is provided with control assembly 33.

[0045] It needs to be explained that, in use, fixed installation of fixed VOCs detection instrument is in detection cabinet 1, and the detection end of VOCs detection instrument is connected with detection port 12, after every use a period of time of detection cabinet 1, can export standard gas to detection port 12 automatically through calibration assembly 32, so that the internal VOCs detection instrument can be calibrated, ensure that VOCs detection instrument is always in the best calibration state, improve the accuracy and reliability of detection data, and do not need manual operation, greatly improve the calibration efficiency, and control assembly 33 can accurately control standard gas discharge, reduce the waste of gas.

[0046] In a preferred embodiment, as Figure 2 , Figure 3 and Figure 4As shown, the calibration assembly 32 comprises a sealed pipe 321 slidingly installed inside the storage box 31, one end of the sealed pipe 321 extends out of the storage box 31, and a plurality of discharge holes 324 are formed on the surface of the sealed pipe 321, and the plurality of discharge holes 324 are located inside the storage box 31; an electric telescopic rod 323 is further fixedly installed on the top of the storage box 31, and the output end of the electric telescopic rod 323 extends to one side of the sealed pipe 321. When calibrating, the electric telescopic rod 323 drives the sealed pipe 321 to move out of the inside of the storage box 31, moves the plurality of discharge holes 324 to one side of the detection port 12, and aligns the discharge holes 324 with the detection port 12, and outputs the standard gas through the discharge holes 324 to the detection port 12, so as to calibrate the VOCs detection instrument inside the detection cabinet 1, which is very convenient. At the same time, the other end of the sealed pipe 321 is further fixedly connected with a moving plate 322, the output end of the electric telescopic rod 323 is fixedly connected with the moving plate 322, and the two sides of the moving plate 322 are slidingly connected with the inner wall of the storage box 31, so that the electric telescopic rod 323 can drive the moving plate 322 to more stably drive the sealed pipe 321 and the plurality of discharge holes 324 to move inside the storage box 31 during use.

[0047] As Figure 3 and Figure 4 shown, a gas pump 325 is further fixedly installed on the top of the storage box 31, the output end of the gas pump 325 extends to the inside of the storage box 31, and the output end of the gas pump 325 is located on the top of the sealed pipe 321. Therefore, when the plurality of discharge holes 324 reach the specified position, the gas pump 325 is started synchronously to realize accurate release of the standard gas, so as to more stably calibrate the VOCs detection instrument. A protective shell 11 is further fixedly installed on the top of the detection cabinet 1, the top of the protective shell 11 is provided with inclined surfaces on both sides, and when used outdoors, the detection cabinet 1 can prevent external rainwater through the top protective shell 11, thereby reducing the influence of external factors.

[0048] In a preferred embodiment, as Figure 2 , Figure 3 and Figure 5As shown, the control assembly 33 includes a guide rod 331 fixedly installed inside the storage box 31, a trigger controller 332 is fixedly installed at the bottom end of the guide rod 331, the moving plate 322 is slidably sleeved outside the guide rod 331, and a spring 333 is also sleeved outside the guide rod 331, and the two ends of the spring 333 are fixedly connected with the moving plate 322 and the inner wall of the storage box 31 respectively. Therefore, when the moving plate 322 moves to a specified position, it is in contact with the trigger controller 332 at the same time, so as to control the electric telescopic rod 323 to stop and start the gas pump 325 to output standard gas for calibration, thereby avoiding the problem of inaccurate output of standard gas due to position deviation. The electric one-way rotating plate 334 is also fixedly installed inside the sealing pipe 321, and the electric one-way rotating plate 334 is located at the top of the plurality of discharge holes 324. When the trigger controller 332 is triggered, the electric one-way rotating plate 334 is controlled to be opened, so that the plurality of discharge holes 324 are communicated with the inside of the storage box 31, thereby releasing standard gas as needed, avoiding gas leakage or invalid release.

[0049] In use, when calibrating, the electric telescopic rod 323 pushes the moving plate 322 to drive the sealing pipe 321 to move out of the inside of the storage box 31, and the plurality of discharge holes 324 are moved to one side of the detection port 12. When the moving plate 322 moves to a specified position, it is in contact with the trigger controller 332 at the same time, so as to control the electric telescopic rod 323 to stop and start the gas pump 325 to output standard gas for calibration, thereby avoiding the problem of inaccurate output of standard gas due to position deviation. When the trigger controller 332 is triggered, the electric one-way rotating plate 334 is controlled to be opened, so that the plurality of discharge holes 324 are communicated with the inside of the storage box 31, thereby releasing standard gas as needed, avoiding gas leakage or invalid release. The released gas stably contacts the detection port 12, and is used for calibrating the VOCs detection instrument inside the detection cabinet 1, which is very convenient.

[0050] It should be noted that the VOCs detection instrument, the electric telescopic rod 323, the gas pump 325, the trigger controller 332 and the electric one-way rotating plate 334 in the above description are all relatively mature devices in the prior art, and specific models can be selected according to actual needs, which will not be repeated here.

[0051] The above is only a preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model.

Claims

1. A VOCs detection device, characterized in that: The application relates to a VOCs detection cabinet. The cabinet comprises a detection cabinet (1) provided with a VOCs detection instrument, which is communicated with a detection port (12) arranged on one side of the detection cabinet (1); an automatic calibration mechanism (3) comprising a storage box (31) arranged on one side of the detection cabinet (1) close to the detection port (12); and a calibration assembly (32) arranged in the storage box (31) and matched with a control assembly (33) arranged in the storage box (31). The calibration assembly (32) comprises a sealing pipe (321) slidingly arranged in the storage box (31) and extending out of the storage box (31) at one end, a plurality of discharge holes (324) being arranged on the sealing pipe (321) close to the detection port (12); and an electric telescopic rod (323) arranged at the top of the storage box (31) and having an output end extending to one side of the sealing pipe (321). The other end of the sealing pipe (321) is provided with a moving plate (322), and the output end of the electric telescopic rod (323) is connected with the moving plate (322). The two sides of the moving plate (322) are slidingly connected with the inner wall of the storage box (31).

2. The VOCs detection device of claim 1, wherein: The plurality of discharge holes (324) are arranged through the side wall of the sealing pipe (321) and communicated with the inner cavity of the sealing pipe (321) and matched with the detection port (12). The top of the storage box (31) is further provided with an air pump (325) having an output end extending into the storage box (31) and located at the top of the sealing pipe (321). The top of the detection cabinet (1) is further provided with a protective shell (11) having two inclined surfaces on the top.

3. The VOCs detection device of claim 2, wherein: The control assembly (33) comprises a guide rod (331) slidingly sleeved with the moving plate (322) and provided with a trigger controller (332) at the bottom end; and a spring (333) sleeved outside the guide rod (331) and connected with the moving plate (322) and the inner wall of the storage box (31) at two ends.

4. The VOCs detection device of claim 3, wherein: The sealing pipe (321) is further provided with an electric one-way rotating plate (334) located at the top of the plurality of discharge holes (324).

5. The VOCs detection device of claim 2, wherein: One side of the detection cabinet (1) is further hingedly provided with a cabinet door (2).

6. The VOCs detection device of claim 1, wherein: ​ 7. The VOCs detection device of claim 1, wherein: ​ 8. The VOCs detection device of claim 2, wherein: ​ ​ ​ 9. The VOCs detection device of claim 8, wherein: ​ 10. The VOCs detection device of claim 1, wherein: ​

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