Ozone concentration detection device and method

Abstract

The invention provides an ozone concentration detection device and method, and the device comprises a detection assembly which is used for detecting the concentration of ozone gas; the gas inlet assembly is provided with a zero calibration pipeline, a detection pipeline and a gas inlet pipeline, one end of the zero calibration pipeline and one end of the detection pipeline are both communicated with one end of the gas inlet pipeline, the other end of the gas inlet pipeline is communicated with the gas inlet end of the detection assembly, and the gas inlet assembly is used for introducing ozone gas; the ozone gas is controlled to pass through the zero calibration pipeline or the detection pipeline and then is introduced into the detection assembly; the zero calibration assembly is arranged on the zero calibration pipeline, and the zero calibration assembly is used for decomposing the ozone gas circulating in the zero calibration pipeline; the gas outlet assembly is communicated with the gas outlet end of the detection assembly, and the gas outlet assembly is used for driving and leading out the ozone gas and oxygen formed after decomposition. The ozone concentration detection device provided by the invention can automatically calibrate the zero point, can ensure the accuracy of ozone gas detection values, and is high in detection data precision.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, and in particular to an ozone concentration detection device and method. Background Art

[0002] Ozone, also known as superoxide, is an allotrope of oxygen. At room temperature, it is a light blue gas with a special odor. Ozone is widely used in industry and can be used to purify air, bleach drinking water, sterilize, treat industrial waste and serve as a bleaching agent. Ozone (O3) is not an added chemical agent, but an oxygen element gas formed by the activation of oxygen (O2) in the air. It sterilizes instantly and then quickly returns to oxygen. Therefore, ozone is recognized worldwide as a highly effective disinfectant that does not cause pesticide residues. However, ozone gas exceeding the prescribed concentration has an erosive and damaging effect on the human body, especially on the eyes and respiratory tract. In ozone use situations, it is necessary to detect the current ozone concentration through an ozone concentration detection device.

[0003] During the continuous detection of ozone gas by the existing ozone concentration detection device, the zero point of the ozone concentration detection device may shift due to the continuous operation of the components in the device. After the shift, the ozone concentration detection value deviates, resulting in a large error between the current ozone concentration and the detected ozone concentration value, and the detection value is not accurate enough. Summary of the invention

[0004] The purpose of the present invention is to provide an ozone concentration detection device and method, which realizes automatic zero calibration and solves the problem that the continuous detection of the device is not accurate enough.

[0005] To achieve the above-mentioned object, in a first aspect, the present invention provides an ozone concentration detection device, comprising: a detection component for detecting the concentration of ozone gas; An air intake assembly, comprising a zero calibration pipeline, a detection pipeline and an air intake pipeline, one end of the zero calibration pipeline and one end of the detection pipeline are both connected to one end of the air intake pipeline, and the other end of the air intake pipeline is connected to the air intake end of the detection assembly, and the air intake assembly is used to introduce ozone gas, and control the ozone gas to pass through the zero calibration pipeline or the detection pipeline before entering the detection assembly; A zero calibration component is arranged on the zero calibration pipeline, and the zero calibration component is used to decompose the ozone gas flowing in the zero calibration pipeline into oxygen; The gas outlet component is connected to the gas outlet end of the detection component, and the gas outlet component is used to drive and export ozone gas and oxygen. The present invention controls the flow path of ozone gas through an air intake component. When in the detection state, ozone gas is input into the detection component to detect the current input ozone gas concentration. When zeroing is required, the air intake component controls the ozone gas input zeroing pipeline, the zeroing component and the air intake pipeline. The zeroing component decomposes the ozone gas into oxygen and inputs the oxygen into the detection component through the air intake pipeline. With the continuous input of oxygen, the residual ozone gas in the detection component will be discharged to zero the detection component, thereby avoiding zero point offset caused by long-term continuous detection of ozone concentration, which makes the detected ozone concentration value deviate too much from the actual value. The device automatically performs zero point calibration, which can ensure the accuracy of the ozone gas detection value and the high accuracy of the detection data.

[0006] In some embodiments, the detection assembly includes a detection member, an ultraviolet light emitter, a first ultraviolet light receiver, and a second ultraviolet light receiver; The detection element is provided with a detection cavity inside, both ends of the detection cavity are connected to transparent sealing plates, the air inlet end of the detection element is connected to the air inlet pipeline, the air outlet end of the detection element is connected to the air outlet assembly, and the transparent sealing plate is used to seal both ends of the detection cavity; The ultraviolet light emitter is connected to one side of the air inlet end of the detection element, and the ultraviolet light emitter is used to emit detection ultraviolet light and comparison ultraviolet light, and the detection ultraviolet light can pass through the transparent sealing plate and the detection cavity; The first ultraviolet light receiver is connected to one side of the air outlet end of the detection element, and the first ultraviolet light receiver is used to receive the detection ultraviolet light after passing through the transparent sealing plate and the detection cavity; The second ultraviolet light receiver is connected to the ultraviolet light transmitter, and the second ultraviolet light receiver is used to receive the comparison ultraviolet light. Its beneficial effect is that when ozone gas flows in the detection cavity, the detection ultraviolet light contacts the ozone gas, the detection ultraviolet light is absorbed by the ozone gas, the attenuated detection ultraviolet light is received by the first ultraviolet light receiver, and the detection ultraviolet light intensity is measured. The ultraviolet light transmitter also emits comparison ultraviolet light, the comparison ultraviolet light does not pass through the ozone gas, the comparison ultraviolet light is directly received by the second ultraviolet light receiver, and the comparison ultraviolet light intensity is measured. The ozone gas concentration can be calculated based on the detection ultraviolet light and the comparison ultraviolet light.

[0007] In some embodiments, the ultraviolet light emitter includes a beam splitter block, an emission end, and a semi-reflective lens; An optical channel is arranged in the spectroscopic block, and the optical channel has a horizontal channel and a vertical channel that are connected, the horizontal channel passes through the spectroscopic block, the vertical channel passes through the top surface of the spectroscopic block in one direction, the top surface of the spectroscopic block is connected to the second ultraviolet light receiver, the horizontal channel is used to circulate detection ultraviolet light, and the vertical channel is used to circulate comparison ultraviolet light; The transmitting end is connected to one side of the horizontal channel, and the other side of the horizontal channel is connected to the detection element. The horizontal channel and the detection cavity of the detection element are arranged on the same axis, and the transmitting end is used to emit ultraviolet light; The semi-reflective lens is located in the light splitting block, and the semi-reflective lens is tilted on the horizontal channel, and the semi-reflective lens is used to split the ultraviolet light emitted by the transmitting end into the contrast ultraviolet light and the detection ultraviolet light. Its beneficial effect is that the ultraviolet light emitted by the transmitting end is formed into contrast ultraviolet light and detection ultraviolet light through the semi-reflective lens, and the contrast ultraviolet light and the detection ultraviolet light are correspondingly emitted through the optical channel and detected, and the ozone gas concentration is obtained by counting.

[0008] In some embodiments, the cross section of the detection cavity is circular, and the ratio of the length to the inner diameter of the detection cavity is 3 to 10: 1. The beneficial effect is that while ensuring the detection of the concentration of ozone gas by ultraviolet light, the decomposed ozone gas can be quickly discharged, avoiding the turbulence of the ozone gas and the decomposed ozone gas caused by the detection cavity with a larger inner diameter, and the inability to quickly and completely discharge the ozone gas.

[0009] In some embodiments, the air intake assembly includes an air intake pipe and an electric three-way valve; the air intake pipe is used to introduce ozone gas; the air intake end of the electric three-way valve is connected to the air intake pipe, the air outlet end of the electric three-way valve is connected to the zero calibration pipeline and the detection pipeline, and the electric three-way valve is used to control the ozone gas to be input into the zero calibration pipeline or the detection pipeline respectively. The beneficial effect is that the electric three-way valve automatically controls the air outlet path, allowing the ozone gas to be alternately input into the corresponding zero calibration pipeline and detection pipeline, so as to realize the detection of ozone gas and the decomposition treatment of ozone gas.

[0010] In some embodiments, the zero calibration component includes a first destroyer; the first destroyer is connected to the zero calibration pipeline, the first destroyer is hollow, and the first destroyer is filled with a catalyst, and the first destroyer is used to decompose the ozone gas flowing from the zero calibration pipeline. Its beneficial effect is that the loose and porous catalyst is filled in the hollow first destroyer, and when the ozone gas passes into the first destroyer, the loose and porous catalyst contacts the ozone gas, decomposing the ozone into oxygen, and the ozone gas is decomposed into ordinary gas, and the ozone gas is decomposed thoroughly and quickly.

[0011] In some embodiments, the air outlet assembly includes an air pump, an air outlet pipe, and a second destroyer; One end of the gas outlet pipe is connected to the gas outlet end of the detection element, and the gas outlet pipe is used to output ozone gas and oxygen; The air pump is connected to the air outlet pipe, and the air pump is used to drive the gas to allow ozone gas and oxygen to be discharged; The second destroyer is connected to the outlet pipe, the second destroyer is filled with a catalyst, and the second destroyer is used to decompose the ozone gas into oxygen. The beneficial effect is that the second destroyer is connected to the outlet pipe, the second destroyer has the same structure as the first destroyer, and when the ozone gas concentration is detected, the ozone gas is introduced into the second destroyer for graded treatment, so as to avoid the ozone gas being discharged through the outlet pipe again, thereby increasing the safety of use.

[0012] In some embodiments, it further comprises a shell; the electric three-way valve, the first breaker, the detection element, the air pump and the second breaker are installed in the shell, and the shell is connected to the air inlet pipe and the air outlet pipe. The beneficial effect is that the shell forms a protective shell on the outside to protect the electric three-way valve, the first breaker, the detection element, the air pump and the second breaker installed inside to prevent the device from being damaged.

[0013] In some embodiments, a control panel is further included; the control panel is arranged on the housing, the control panel is electrically connected to the first ultraviolet light receiver, the second ultraviolet light receiver and the ultraviolet light transmitter, the control panel includes a display screen and an alarm, the display screen is used to display the ozone concentration information in the ozone gas, and when the ozone gas concentration exceeds the set concentration, the alarm sounds an alarm. Its beneficial effects are: the real-time ozone gas concentration is displayed through the display screen on the control panel, which is convenient for observation, and when the ozone gas concentration exceeds the set concentration, the alarm is activated and an alarm sound is sounded, and the warning effect is good.

[0014] In a second aspect, an embodiment of the present invention provides an ozone concentration detection method, the ozone concentration detection method comprising: starting an air outlet component to form a negative pressure in the detection component; The air intake component delivers the ozone gas to the detection component through the zeroing pipeline or the detection pipeline; When detecting the ozone concentration, the ozone gas is input into the detection component through the detection pipeline and the air intake pipeline, and the detection component detects the concentration of the ozone gas; When the detection component is zeroed, ozone gas is input into the detection component through the zeroing pipeline and the air inlet pipeline. The ozone gas flowing through the zeroing component will be decomposed to form oxygen, which is input into the detection component to discharge the ozone gas in the detection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of an ozone concentration detection device is provided for the present invention; Figure 2 An explosion schematic diagram of an ozone concentration detection device is provided for the present invention; Figure 3The present invention provides an overall structural schematic diagram of an ozone concentration detection device; Figure 4 A side view of a detection component of an ozone concentration detection device provided by the present invention; Figure 5 For the present invention Figure 4 Sectional view at AA. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0020] During the continuous detection of ozone gas by the existing ozone concentration detection device, the zero point of the ozone concentration detection device may shift due to the continuous operation of the components in the device. After the zero point shifts, the ozone concentration detection value will deviate, resulting in a large error between the current ozone concentration and the detected ozone concentration value, and the detection value is not accurate enough.

[0021] In view of the above problems, the embodiments of the present invention provide the following technical solutions to overcome the above problems.

[0022] The device is mainly used in environmental testing, food production, semiconductors, photovoltaics, panels and other places that are sensitive to ozone concentration.

[0023] Figure 1 The present invention provides a three-dimensional structural schematic diagram of an ozone concentration detection device, Figure 2 The present invention provides an explosion diagram of an ozone concentration detection device, Figure 3 The present invention provides an overall structural schematic diagram of an ozone concentration detection device, Figure 4 A side view of a detection member of an ozone concentration detection device provided by the present invention, Figure 5 For the present invention Figure 4 Sectional view at AA.

[0024] like Figure 1-Figure 5 As shown, in a specific embodiment of the present invention, the ozone concentration detection device includes: an air intake component 1, the air intake component 1 has a zeroing pipeline 104 and a detection pipeline 103, one end of the zeroing pipeline 104 and one end of the detection pipeline 103 are both connected to one end of the air intake pipeline 105, and the other end of the air intake pipeline 105 is connected to the detection component 3, the air intake component 1 is used to introduce ozone gas, and the air intake component 1 can also control the ozone gas to be alternately input into the detection component 3 through the zeroing pipeline 104 and the detection pipeline 103, so that the detection component 3 is used to detect the concentration of ozone gas, and the gas outlet component 4 is connected to the detection component 3, and is used to drive and export the gas located in the detection component 3. Among them, the zeroing pipeline 104 is provided with a zeroing component 2, and the zeroing component 2 can be used to decompose the ozone gas transmitted through the zeroing pipeline 104 into oxygen.

[0025] Therefore, when the air intake component 1 inputs ozone gas into the detection component 3 through the zero calibration pipeline 104, the zero calibration component 2 will decompose the ozone gas and form oxygen. When the oxygen enters the detection component 3, the residual ozone gas in the detection component 3 can be discharged, and the zero calibration in the detection component 3 is completed. When the air intake component 1 inputs ozone gas into the detection component 3 through the detection pipeline 103, the ozone concentration can be accurately detected.

[0026] Specifically, when the gas outlet component 4 in the ozone concentration detection device is started, the gas outlet component 4 is used to extract the gas inside the ozone concentration detection device, wherein the gas includes ozone gas and decomposed ozone gas. The gas outlet component 4 forms a negative pressure in the gas circulation space inside the ozone concentration detection device, so that the ozone gas enters the inside of the air intake component 1, and then the ozone gas is alternately input into the zeroing pipeline 104 and the detection pipeline 103 under the control of the air intake component 1, so that one path of ozone gas is divided into two transmission paths, one of which is through the detection pipeline 103 and the air intake pipeline 105, and then input into the detection component 3, and then the ozone gas concentration is detected by the detection component 3. After the ozone concentration detection device has been continuously detecting the ozone gas for a long time, it is necessary to perform zero calibration on the ozone concentration detection device. At this time, the air intake component 1 controls the ozone gas to let the ozone gas enter the zeroing pipeline 104 and the detection pipeline 103 alternately. Oxygen gas is input into another gas flow path and then input into the detection component 3. The other gas flow path is the zeroing pipeline 104, the zeroing component 2 and the air inlet pipeline 105. When the ozone gas passes through the zeroing pipeline 104 and the zeroing component 2, the zeroing component 2 decomposes the ozone gas and completely decomposes the ozone gas into oxygen. The oxygen is then input into the detection component 3 to clear the residual ozone gas inside the detection component 3 until the detection space of the detection component 3 is evenly distributed with oxygen, so that the detection component 3 can automatically calibrate and reset without interference from ozone gas, correct the zero drift of the ozone concentration detection device under long-term continuous detection, and improve the accuracy of the device in detecting ozone concentration. The gas inside the detection component 3 is driven by the gas outlet component 4 and exported to the inside of the device to achieve continuous ozone gas detection and automatic calibration.

[0027] In this embodiment, the flow path of the ozone gas is controlled by the air intake component 1. In the detection state, the ozone gas is input into the detection component 3 to detect the current input ozone gas concentration. When zeroing is required, the air intake component 1 controls the ozone gas to input the zeroing pipeline 104, the zeroing component 2 and the air intake pipeline 105. The zeroing component 2 decomposes the ozone gas into oxygen and inputs it to the detection component 3 through the air intake pipeline 105. The oxygen can discharge all the residual ozone gas in the detection component 3, so that the detection component 3 can be zeroed without interference, avoiding zero point offset caused by long-term continuous detection of ozone concentration, causing the detected ozone concentration value to deviate too much from the actual value, thereby ensuring the accuracy of the ozone gas detection value and greatly improving the accuracy of the detection data.

[0028] In a specific embodiment of the present invention, Figure 2 , Figure 4 and Figure 5As shown, the detection component 3 includes a detection part 301, an ultraviolet light emitter 302, a first ultraviolet light receiver 304 and a second ultraviolet light receiver 305; a detection cavity 3011 is arranged inside the detection part 301, both ends of the detection cavity 3011 are connected to a transparent sealing plate 3012, the air inlet pipeline 105 is connected to the air inlet end of the detection cavity 3011, the air outlet end of the detection part 301 is connected to the air outlet component 4, and the transparent sealing plate 3012 is used to seal both ends of the detection cavity 3011, and the ozone gas and Oxygen can flow in the detection cavity 3011; the ultraviolet light emitter 302 is connected to one side of the air inlet end of the detection element 301, and the ultraviolet light emitter 302 is used to emit detection ultraviolet light and comparison ultraviolet light; the first ultraviolet light receiver 304 is connected to one side of the air outlet end of the detection element 301, and the first ultraviolet light receiver 304 is used to receive the detection ultraviolet light and form an electrical signal; the second ultraviolet light receiver 305 is connected to the ultraviolet light emitter 302, and the second ultraviolet light receiver 305 is used to receive the comparison ultraviolet light and form an electrical signal. The transparent sealing plate 3012 connected at both ends of the detection cavity 3011 allows the detection ultraviolet light to pass through and perform ozone concentration detection, but the ozone gas will not contact the ultraviolet light emitter 302 and the first ultraviolet light receiver 304 through the openings at both ends of the detection cavity 3011, thereby avoiding the rapid oxidation of the device caused by the strong oxidizing property of ozone and extending the service life of the device.

[0029] When ozone concentration detection is performed, the air intake pipe 105 is used to introduce ozone gas into the interior of the detection element 301 and circulate it in the detection cavity 3011. At the same time, the detection ultraviolet light emitted by the ultraviolet light emitter 302 also enters the detection cavity 3011. The detection ultraviolet light passes through the ozone gas in the detection cavity 3011 and is received by the first ultraviolet light receiver 304. Since the detection ultraviolet light contacts the ozone gas, part of the detection ultraviolet light will be absorbed by the ozone gas, so the first ultraviolet light receiver 304 receives the attenuated detection ultraviolet light, and finally obtains the attenuated ultraviolet light intensity. The ultraviolet light emitter 302 also emits a contrast ultraviolet light, which does not pass through the ozone gas and is directly received by the second ultraviolet light receiver 305, which is equivalent to the second ultraviolet light receiver 305 being able to obtain the ultraviolet light intensity emitted by the ultraviolet light emitter 302.

[0030] It should be noted that the absorption characteristics of ozone gas and ultraviolet light conform to the Lambert-Beer law. Ozone has the largest absorption coefficient for ultraviolet light of a specific wavelength (ultraviolet light wavelength = 253.7nm). By measuring the light intensity attenuation of ultraviolet light of a specific wavelength after passing through ozone, the concentration of ozone can be accurately determined. The calculation formula is as follows:

[0031] in, : incident ultraviolet light intensity; I: Outgoing UV light intensity; K: molar absorptivity; L: optical path length; C: ozone concentration; Since the molar absorption coefficient K and the optical path length L of the detection element 301 are known quantities, the incident ultraviolet light intensity emitted by the ultraviolet light emitter 302 is , which can be represented by the intensity of the contrast ultraviolet light detected by the second ultraviolet light receiver 305, that is, the intensity of the contrast ultraviolet light detected by the second ultraviolet light receiver 305 The outgoing ultraviolet light intensity I can be represented by the intensity of the ultraviolet light detected by the first ultraviolet light receiver 304, which means that I can be detected by the first ultraviolet light receiver 304, and then the ozone gas concentration can be obtained by the above calculation formula.

[0032] In a specific embodiment of the present invention, Figure 2 and Figure 5 As shown, the ultraviolet light emitter 302 includes a spectroscopic block 3021, a transmitting end 3022 and a semi-reflective lens 3023; an optical channel is arranged in the spectroscopic block 3021, and the optical channel has a connected horizontal channel and a vertical channel, the horizontal channel passes through the spectroscopic block 3021, and the vertical channel passes through the top surface of the spectroscopic block 3021 in one direction, and the top surface of the spectroscopic block 3021 is connected to the second ultraviolet light receiver 305, the detection ultraviolet light can be emitted into the detection cavity 3011 through the horizontal channel and received by the first ultraviolet light receiver 304, and the comparison ultraviolet light can be received by the second ultraviolet light receiver 305 through the semi-reflective lens 3023 and the vertical channel.

[0033] Specifically, a "T"-shaped optical channel is provided in the light splitting block 3021, and a horizontal channel of the optical channel runs through the light splitting block 3021. The transmitting end 3022 is connected to one side of the horizontal channel, and the other side of the horizontal channel is connected to the detection element 301. The horizontal channel and the detection cavity 3011 of the detection element 301 are arranged on the same axis, and the transmitting end 3022 is used to emit ultraviolet light; the semi-reflective lens 3023 is installed in the light splitting block 3021 and is tilted on the horizontal channel. The ultraviolet light emitted by the transmitting end 3022 forms contrast ultraviolet light and detection ultraviolet light after passing through the semi-reflective lens 3023. The detection ultraviolet light is emitted into the detection cavity 3011 through the horizontal channel. After the detection ultraviolet light contacts the ozone gas, it will be absorbed and attenuated. The attenuated detection ultraviolet light is emitted from the other end of the detection cavity 3011 and is received by the first ultraviolet light receiver 304. The vertical contrast ultraviolet light does not contact the ozone gas and is directly received by the second ultraviolet light receiver 305.

[0034] When the ozone concentration detection device needs to be zeroed after long-term detection, the decomposed ozone gas is input into the detection cavity 3011 through the zeroing pipeline 104 to discharge the residual ozone gas in the detection cavity 3011. Then, the detection ultraviolet light will not attenuate when passing through the detection cavity 3011. At this time, the detection ultraviolet light intensity detected by the first ultraviolet light receiver 304 and the comparison ultraviolet light intensity detected by the second ultraviolet light receiver 305 can be calibrated to eliminate the zero point offset generated by the device in the continuous detection of ozone concentration, thereby ensuring the accuracy of ozone gas concentration detection and ensuring that the error between the ozone concentration value detected by the device and the actual value is within the standard range.

[0035] In a specific embodiment of the present invention, Figure 5 As shown, the radial cross section of the detection cavity 3011 is circular, and the ratio of the length to the inner diameter of the detection cavity 3011 is 3 to 10:1. The detection cavity 3011 with a circular radial cross section will not have a gas dead angle. After the decomposed ozone gas (oxygen) is introduced, the ozone gas can be completely discharged to avoid the residual ozone affecting the zero calibration accuracy of the device. The ratio of the length to the inner diameter of the detection cavity 3011 is controlled within the range of 3 to 10:1. While ensuring the detection requirements of the ultraviolet light for the ozone gas concentration detection, it is also convenient for the decomposed ozone gas to quickly discharge the residual ozone gas in the detection cavity 3011, avoiding the detection cavity 3011 with a larger inner diameter causing turbulence of the ozone gas and the decomposed ozone gas, and failing to quickly and thoroughly discharge the ozone gas, which leads to poor zero calibration effect of the device.

[0036] In a specific embodiment of the present invention, Figure 2As shown, the air intake assembly 1 includes an air intake pipe 101 and an electric three-way valve 102; the air intake pipe 101 is connected to an external air supply source for introducing ozone gas, the air intake end of the electric three-way valve 102 is connected to the air intake pipe 101, the air outlet end of the electric three-way valve 102 is connected to the zero calibration pipeline 104 and the detection pipeline 103, and the electric three-way valve 102 is used to control the ozone gas to alternately input the zero calibration pipeline 104 and the detection pipeline 103. The electric three-way valve 102 automatically controls the air outlet path, allowing the ozone gas to alternately input the corresponding zero calibration pipeline 104 and the detection pipeline 103, so as to realize the detection of ozone gas and the decomposition treatment of ozone gas.

[0037] In a specific embodiment of the present invention, Figure 2 As shown, the zeroing component 2 includes a first destroyer 201; the first destroyer 201 is connected to the zeroing pipeline 104, the first destroyer 201 is hollow, and the first destroyer 201 is filled with a catalyst so that the first destroyer 201 can completely decompose the ozone gas into oxygen.

[0038] For example, a loose and porous catalyst is filled in the hollow first destroyer 201. When ozone gas is passed into the first destroyer 201, the loose and porous catalyst contacts the ozone gas, causing the ozone gas to decompose into oxygen. The catalyst may be aluminum oxide ( )、Titanium dioxide( )、Manganese dioxide( ), activated carbon and other catalysts to catalyze the decomposition of ozone gas.

[0039] In a specific embodiment of the present invention, Figure 2As shown, the gas outlet assembly 4 includes an air pump 402, an air outlet pipe 401 and a second destroyer 403; one end of the air outlet pipe 401 is connected to the air outlet end of the detection element 301, and the air outlet pipe 401 is used to export ozone gas and oxygen; the air pump 402 is connected to the air outlet pipe 401, and the air pump 402 is used to drive gas to export ozone gas and oxygen; the second destroyer 403 is connected to the air outlet pipe 401, the second destroyer 403 is hollow, the second destroyer 403 is filled with a catalyst, and the second destroyer 403 is used to decompose ozone gas. The air pump 402 is connected to the air outlet pipe 401. When the air pump 402 is started, a negative pressure is formed inside the device, and the ozone gas circulating inside the device and the decomposed ozone gas are exported. The air pump 402 provides power for gas circulation, so that the ozone gas continuously enters the air inlet pipe 101 to achieve the purpose of continuous detection. A second destroyer 403 is connected to the air outlet pipe 401. The second destroyer 403 has the same structure as the first destroyer 201. When the ozone gas concentration is detected, the ozone gas is introduced into the second destroyer 403 for graded treatment to avoid the ozone gas in the device being directly discharged through the air outlet pipe 401, thereby increasing safety during use.

[0040] In a specific embodiment of the present invention, Figure 2 and Figure 3 As shown, the device further includes a housing 5; the electric three-way valve 102, the first breaker 201, the detection element 301, the air pump 402 and the second breaker 403 are installed in the housing 5, and the housing 5 connects the air inlet pipe 101 and the air outlet pipe 401. The housing 5 forms a protective shell on the outside to protect the electric three-way valve 102, the first breaker 201, the detection element 301, the air pump 402 and the second breaker 403 installed inside to prevent the device from being damaged.

[0041] Furthermore, a plurality of limit plates (not shown in the figure) are fixedly connected in the shell 5, and the air inlet pipe 101, the air outlet pipe 401, the zeroing pipeline 104 and the detection pipeline 103 of the device are all connected to one side of the corresponding limit plate, and the correspondingly connected pipes are limited by the plurality of limit plates, so that the air inlet pipe 101, the air outlet pipe 401, the zeroing pipeline 104 and the detection pipeline 103 are limited in the corresponding positions, avoiding the air inlet pipe 101, the air outlet pipe 401, the zeroing pipeline 104 and the detection pipeline 103 from bending, so that the gas can flow smoothly in the device.

[0042] In a specific embodiment of the present invention, Figure 2 and Figure 3As shown, it also includes a control panel 6; the control panel 6 is connected to the housing 5, the control panel 6 is electrically connected to the first ultraviolet light receiver 304, the second ultraviolet light receiver 305 and the transmitting end 3022, and the control panel 6 includes a display screen and an alarm, and the display screen is used to display the ozone concentration information in the ozone gas. The real-time ozone gas concentration is displayed on the display screen on the control panel 6, which is convenient for observation, and when the ozone gas concentration exceeds the set concentration, the alarm is activated and an alarm sound is emitted, which has a good warning effect.

[0043] An ozone concentration detection method, the ozone concentration detection method comprising: starting the gas outlet component 4 to form a negative pressure in the device; forming a negative pressure inside the gas inlet component 1 to introduce ozone gas, and alternately inputting the ozone gas into the zeroing pipeline 104, the detection pipeline 103 and the gas inlet pipeline 105. When the ozone concentration is detected, the ozone gas is input into the detection pipeline 103, the gas inlet pipeline 105 and the detection component 3, the detection component 3 performs concentration detection on the ozone gas, and the detected ozone gas is exported through the gas outlet component 4; when the ozone concentration is zeroed, the ozone gas is input into the zeroing pipeline 104, the zeroing component 2 decomposes the ozone gas in the ozone gas to form oxygen, the oxygen is input into the gas inlet pipeline 105 and the detection component 3, and is exported through the gas outlet component 4, so that the detection component 3 is zero-calibrated.

[0044] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed in the embodiment of the present application should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. An ozone concentration detection device, It is characterized in that include: A detection component, used for detecting the concentration of ozone gas; An air intake assembly, comprising a zero calibration pipeline, a detection pipeline and an air intake pipeline, one end of the zero calibration pipeline and one end of the detection pipeline are both connected to one end of the air intake pipeline, and the other end of the air intake pipeline is connected to the air intake end of the detection assembly, and the air intake assembly is used to introduce ozone gas, and control the ozone gas to pass through the zero calibration pipeline or the detection pipeline before entering the detection assembly; A zero calibration component is arranged on the zero calibration pipeline, and the zero calibration component is used to decompose the ozone gas flowing in the zero calibration pipeline into oxygen; An air outlet component is connected to the air outlet end of the detection component, and the air outlet component is used to drive and export the ozone gas and oxygen in the detection component; The detection assembly includes a detection member, an ultraviolet light emitter, a first ultraviolet light receiver and a second ultraviolet light receiver; The detection element is provided with a detection cavity inside, both ends of the detection cavity are connected to transparent sealing plates, the air inlet end of the detection element is connected to the air inlet pipeline, the air outlet end of the detection element is connected to the air outlet assembly, and the transparent sealing plate is used to seal both ends of the detection cavity; The ultraviolet light emitter is connected to one side of the air inlet end of the detection element, and the ultraviolet light emitter is used to emit detection ultraviolet light and comparison ultraviolet light, and the detection ultraviolet light can pass through the transparent sealing plate and the detection cavity; The first ultraviolet light receiver is connected to one side of the air outlet end of the detection element, and the first ultraviolet light receiver is used to receive the detection ultraviolet light after passing through the transparent sealing plate and the detection cavity; The second ultraviolet light receiver is connected to the ultraviolet light transmitter, and the second ultraviolet light receiver is used to receive contrast ultraviolet light.

2. The ozone concentration detection device according to claim 1, Features: The ultraviolet light emitter comprises a light splitting block, a transmitting end and a semi-reflective lens; An optical channel is arranged in the spectroscopic block, and the optical channel has a horizontal channel and a vertical channel that are connected, the horizontal channel passes through the spectroscopic block, the vertical channel passes through the top surface of the spectroscopic block in one direction, the top surface of the spectroscopic block is connected to the second ultraviolet light receiver, the horizontal channel is used to circulate detection ultraviolet light, and the vertical channel is used to circulate comparison ultraviolet light; The transmitting end is connected to one side of the horizontal channel, and the other side of the horizontal channel is connected to the detection element. The horizontal channel and the detection cavity of the detection element are arranged on the same axis, and the transmitting end is used to emit ultraviolet light; The semi-reflective lens is located in the light splitting block and is tiltedly arranged on the horizontal channel. The semi-reflective lens is used to split the ultraviolet light emitted by the emission end into the comparison ultraviolet light and the detection ultraviolet light.

3. The ozone concentration detection device according to claim 1, Features: The cross section of the detection cavity is circular, and the ratio of the length to the inner diameter of the detection cavity is 3-10:

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4. The ozone concentration detection device according to claim 1, Features: The air intake assembly includes an air intake pipe and an electric three-way valve; The air inlet pipe is used to introduce ozone gas; The air inlet end of the electric three-way valve is connected to the air inlet pipe, the air outlet end of the electric three-way valve is connected to the zero calibration pipeline and the detection pipeline, and the electric three-way valve is used to control the ozone gas to be input into the zero calibration pipeline or the detection pipeline respectively.

5. The ozone concentration detection device according to claim 4, Features: The zero calibration component includes a first destroyer; The first destroyer is connected to the zero calibration pipeline, a catalyst is filled inside the first destroyer, and the first destroyer is used to decompose the ozone gas flowing through the zero calibration pipeline.

6. The ozone concentration detection device according to claim 5, Features: The air outlet assembly includes an air pump, an air outlet pipe and a second destroyer; One end of the gas outlet pipe is connected to the gas outlet end of the detection element, and the gas outlet pipe is used to output ozone gas and oxygen; The air pump is connected to the air outlet pipe, and the air pump is used to drive the gas to allow ozone gas and oxygen to be discharged; The second destroyer is connected to the gas outlet pipe, a catalyst is filled inside the second destroyer, and the second destroyer is used to decompose the ozone gas into oxygen.

7. The ozone concentration detection device according to claim 6, Features: Also includes a housing; The electric three-way valve, the first breaker, the detection component, the air pump and the second breaker are installed in the shell, and the shell is connected to the air inlet pipe and the air outlet pipe.

8. The ozone concentration detection device according to claim 7, Features: Also includes control panel; The control panel is arranged on the housing, the control panel is electrically connected to the first ultraviolet light receiver, the second ultraviolet light receiver and the ultraviolet light emitter, the control panel comprises a display screen and an alarm, and the display screen is used to display ozone concentration information in the ozone gas; When the ozone gas concentration exceeds a set concentration, the alarm sounds an alarm.

9. A method for detecting ozone concentration, It is characterized in that Applicable to the ozone concentration detection device according to any one of claims 1 to 8, the ozone concentration detection method comprising: Start the gas outlet component to form negative pressure in the detection component; The air intake component delivers the ozone gas to the detection component through the zeroing pipeline or the detection pipeline; When detecting the ozone concentration, the ozone gas is input into the detection component through the detection pipeline and the air intake pipeline, and the detection component detects the concentration of the ozone gas; When the detection component is zeroed, ozone gas is input into the detection component through the zeroing pipeline and the air inlet pipeline. The ozone gas flowing through the zeroing component will be decomposed to form oxygen, which is input into the detection component to discharge the ozone gas in the detection component.

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