CN221007211U - Biological aerosol detecting system - Google Patents

Abstract

The utility model discloses a biological aerosol detection system, wherein an aerosol detection device is used for detecting biological sol in gas to be detected, a sampling module is used for providing sampling power for the detection system, a self-cleaning module is used for providing clean gas for the aerosol detection device and the sampling module, a switching module is provided with a first gas inlet, a second gas inlet and a gas outlet, the first gas inlet is communicated with a space where the gas to be detected is located, the second gas inlet is connected with the self-cleaning module, the gas outlet is connected with the aerosol detection device, the switching module is used for switching the detection system between a detection mode and a self-cleaning mode, a master control unit is communicated with the aerosol detection device, the sampling module and the switching module, a data uploading unit is communicated with the master control unit, and the data received from the master control unit is uploaded to a remote server. The system realizes automatic switching between the sampling mode and the self-cleaning mode and unattended operation, greatly reduces the manual maintenance cost and prolongs the maintenance period of the system.

Description

Biological aerosol detecting system

Technical Field

The utility model relates to the technical field of gas detection, in particular to a biological aerosol detection system.

Background

With the increase of people on biosafety cognition and the improvement of people on air quality and safety requirements, new requirements are provided for real-time monitoring and online measurement of bioaerosols in air. The early warning detection is used for detecting and alarming the emergency, so timeliness is important. The existing bio-aerosol detection system on the market cannot have the functions of long-time automatic operation and automatic maintenance, all the systems need to be manually involved in maintenance, and the early warning detection function cannot be met. Moreover, the existing bioaerosol detection system has no self-cleaning zeroing function and needs human participation.

For example, chinese patent CN102788741a discloses a mobile bio-aerosol monitoring alarm system, which discloses that the flow path between the aerosol sampling unit and the detection unit is switched by the path switching device, the system has no self-cleaning zeroing function, and it can not realize long-time unattended operation.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background art, the utility model provides a biological aerosol detection system, which realizes automatic switching between a sampling mode and a self-cleaning mode, can realize long-time unattended operation, greatly reduces the manual maintenance cost and prolongs the maintenance period of the system.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

the present utility model provides a bioaerosol detection system comprising:

aerosol detection means for detecting a bio-sol in a gas to be measured;

A sampling module for providing sampling power to the detection system;

A self-cleaning module for providing clean gas for the aerosol detection device and the sampling module;

The switching module is provided with a first gas inlet, a second gas inlet and a gas outlet, wherein the first gas inlet is communicated with a space where gas to be detected is located, the second gas inlet is connected with the self-cleaning module, the gas outlet is connected with the aerosol detection device, the first gas inlet is communicated with the gas outlet when the detection system is in a detection mode, the second gas inlet is communicated with the gas outlet when the detection system is in a self-cleaning mode, and the switching module is used for switching the detection system between the detection mode and the self-cleaning mode;

A master control unit which is communicated with the aerosol detection device, the sampling module and the switching module;

And the data uploading unit is communicated with the master control unit and is used for uploading the received data from the master control unit to a remote server.

In some embodiments, the switching module is a lossless switch comprising a switching valve body and an action performing unit;

The switching valve body is provided with the first gas inlet, the second gas inlet and the gas outlet;

The action executing unit comprises a motor, a first limiting optocoupler, a second limiting optocoupler and an action controller, wherein the action controller is used for controlling the motor to perform forward rotation or reverse rotation, the first limiting optocoupler is used for detecting the forward rotation position of the motor, and the second limiting optocoupler is used for detecting the reverse rotation position of the motor;

when the motor rotates forward in place, the first gas inlet is communicated with the gas outlet;

When the motor is reversed in position, the second gas inlet is communicated with the gas outlet.

In some embodiments, the self-cleaning module comprises a self-cleaning gas line and a self-cleaning filter for filtering gas flowing through the self-cleaning gas line to obtain clean gas, the self-cleaning gas line being connected to the second gas inlet.

In some embodiments, the sampling module includes a gas exhaust line, a sampling flow meter, a sampling pump, and an exhaust filter, an inlet end of the gas exhaust line being connected to the aerosol detection device, an outlet end of the gas exhaust line being provided with the exhaust filter.

In some embodiments, the aerosol detection device has a sheath gas module for providing clean gas into a detection light chamber of the aerosol detection device to sheath gas protect the gas to be detected.

In some embodiments, the device comprises a base, wherein the aerosol detection device, the master control unit and the data uploading unit are arranged on the base, and the master control unit and the data uploading unit are arranged beside the aerosol detection device;

the switching module is arranged above the aerosol detection device.

In some embodiments, the self-cleaning module comprises a self-cleaning filter, the sampling module comprises an exhaust filter, and the aerosol detection device comprises a sheath gas filter;

The aerosol detection device is characterized in that a fixing plate is arranged on the same side wall of the aerosol detection device, and the self-cleaning filter, the exhaust filter and the sheath gas filter are arranged on the fixing plate.

In some embodiments, three clamping positions are arranged on the fixing plate at intervals in sequence, and the self-cleaning filter, the exhaust filter and the sheath gas filter are arranged in the corresponding clamping positions.

In some embodiments, the aerosol detection device comprises a detection light chamber, a detection trap and a detection light source are arranged on two opposite sides of the detection light chamber, and the master control unit and the data uploading unit are arranged on the side of the detection light source.

In some embodiments, the sampling module includes a sampling pump disposed above the detection light source.

Compared with the prior art, the utility model has the advantages and positive effects that:

The aerosol detection system disclosed herein has a detection mode and a self-cleaning mode. The automatic switching of the detection mode and the self-cleaning mode is realized through the switching module, and manual operation is omitted.

Through setting up of total accuse unit, data uploading unit, realize the remote monitoring of whole detecting system, long-time unmanned on duty operation, greatly reduced manual maintenance cost, extension system maintenance cycle.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of a bioaerosol detection system according to an embodiment;

FIG. 2 is a simplified schematic structural diagram of a bioaerosol detection system, according to an embodiment;

FIG. 3 is a schematic structural diagram of a bioaerosol detection system according to an embodiment;

FIG. 4 is a schematic view of the structure of FIG. 3, as viewed from the direction Q;

Fig. 5 is a schematic structural diagram of a switching module according to an embodiment;

reference numerals:

100. An aerosol detection device; 110. a detection light chamber; 120. detecting a light source; 130. detecting a trap; 140. a detection sensor; 150. a sheath gas module; 151. a sheath gas flow meter; 152. a sheath gas filter; 153. a sheath gas inlet; 154. a sheath gas outlet;

200. A switching module; 210. a lossless switcher; 211. a switching valve body; 2111. a first gas inlet; 2112. a second gas inlet; 2113. a gas outlet; 212. an action execution unit; 2121. a motor; 2122. the first limiting optocoupler; 2123. the second limiting optocoupler; 2124. a motion controller;

300. A self-cleaning module; 310. a self-cleaning gas line; 320. a self-cleaning filter;

400. A sampling module; 410. a sampling flow meter; 420. a sampling pump; 430. an exhaust gas filter; 440. a gas discharge line;

500. A master control unit;

600. A data uploading unit;

700. A base; 710. and a fixing plate.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The embodiment discloses a bio-aerosol detection system, referring to fig. 1 and 2, which mainly comprises an aerosol detection device 100, a sampling module 400, a self-cleaning module 300, a switching module 200, a master control unit 500, a data uploading unit 600 and the like.

The aerosol detection device 100 is used for detecting a bioaerosol in a gas to be detected.

The sampling module 400 is used to provide sampling power to the detection system.

The self-cleaning module 300 is used for providing clean gas to the aerosol detection device 100 and the sampling module 400.

The switching module 200 has a first gas inlet 2111, a second gas inlet 2112, and a gas outlet 2113, the first gas inlet 2111 communicates with a space where a gas to be measured is located, the second gas inlet 2112 is connected to the self-cleaning module 300, and the gas outlet 2113 is connected to the aerosol detection device 100.

When the detection system is in a detection mode, the first gas inlet 2111 communicates with the gas outlet 2113. When the detection system is in self-cleaning mode, the second gas inlet 2112 communicates with the gas outlet 2113.

The switching module 200 is used to switch the detection system between the detection mode and the self-cleaning mode.

The master control unit 500 communicates with the aerosol detection device 100, the sampling module 400, the switching module 200. The master control unit 500 is used for controlling the operation of the whole system, and controlling and realizing the control of a plurality of instructions such as system sampling detection, system self-cleaning maintenance, data uploading, command processing and the like.

The data uploading unit 600 is in communication with the master control unit 500, and is configured to upload the received data from the master control unit 500 to a remote server, and is configured to remotely view the measurement data by using a person, and remotely control the system through the unit, so as to implement functions of unattended operation and remote control.

The aerosol detection system in this embodiment has a detection mode and a self-cleaning mode.

When the aerosol detection needs to be performed on the gas to be detected, the switching module 200 switches the detection system to a detection mode, the first gas inlet 2111 is communicated with the gas outlet 2113, the gas to be detected flows into the aerosol detection device 100 through the first gas inlet 2111 and the gas outlet 2113, and the sampling module 400 provides power for the gas flow.

When the detection system needs to be self-cleaned, the switching module 200 switches the detection system to a self-cleaning mode, the second gas inlet 2112 is communicated with the gas outlet 2113, external gas is changed into clean gas through the self-cleaning module 300, and the clean gas flows into the aerosol detection device 100 and the sampling module 400 for self-cleaning maintenance and zeroing of the system.

The detection system can realize automatic switching between a detection mode and a self-cleaning mode, and manual operation is omitted.

By setting the master control unit 500 and the data uploading unit 600, the remote monitoring and long-time unattended operation of the whole detection system are realized, the manual maintenance cost is greatly reduced, and the system maintenance period is prolonged.

For the specific structure of the switching module 200, in some embodiments, referring to fig. 5, the switching module 200 is a lossless switcher 210, so as to reduce the interception of aerosol particles in the detection mode, ensure the sampling efficiency, and improve the counting efficiency.

The lossless switcher 210 includes a switching valve body 211 and an action execution unit 212.

The switching valve body 211 is provided with a first gas inlet 2111, a second gas inlet 2112, and a gas outlet 2113.

The first gas inlet 2111 and the gas outlet 2113 are vertically and directly communicated, no part of aerosol particles is trapped by reducing, steps and the like on the communication path, and no loss is generated in the flowing process of the gas to be detected entering the detection device through the lossless switcher 210.

The motion execution unit 212 includes a motor 2121, a first limiting optocoupler 2122, a second limiting optocoupler 2123, and a motion controller 2124, where the motion controller 2124 is configured to control the motor 2121 to forward rotate or reverse rotate, the first limiting optocoupler 2122 is configured to detect a forward rotation position of the motor 2121, and the second limiting optocoupler 2123 is configured to detect a reverse rotation position of the motor 2121.

When the motor 2121 is rotated forward, the first gas inlet 2111 communicates with the gas outlet 2113. When the motor 2121 is reversed in position, the second gas inlet 2112 communicates with the gas outlet 2113.

Specifically, when the detection system executes the detection mode, the motion controller 2124 controls the motor 2121 to rotate forward, and after the first limiting optocoupler 2122 detects that the motor 2121 rotates forward, the motor 2121 stops, at this time, the first gas inlet 2111 is communicated with the gas outlet 2113, and the gas to be detected enters the aerosol detection device 100 through the first gas inlet 2111 and the gas outlet 2113.

When the detection system executes the self-cleaning mode, the motion controller 2124 controls the motor 2121 to rotate reversely, the second limiting optocoupler 2123 detects that the motor 2121 rotates reversely in place, the motor 2121 stops, at this time, the second gas inlet 2112 is communicated with the gas outlet 2113, and clean gas passing through the self-cleaning module 300 enters the aerosol detection device 100 through the second gas inlet 2112 and the gas outlet 2113 to perform self-cleaning or zeroing operation on the detection device.

In the two working states of the detection system in the detection mode and the self-cleaning mode, the gas outlet 2113 is only communicated with one of the first gas inlet 2111 and the second gas inlet 2112 at the same time, the condition that the gas outlet 2113 is simultaneously communicated with the first gas inlet 2111 and the second gas inlet 2112 is avoided, and the condition that the first gas inlet 2111 is communicated with the second gas inlet 2112 is avoided, so that the accuracy and the reliability of the whole system are ensured.

In some embodiments, referring to fig. 2, self-cleaning module 300 includes a self-cleaning gas line 310 and a self-cleaning filter 320, self-cleaning filter 320 for filtering gas flowing through self-cleaning gas line 310 to obtain clean gas, self-cleaning gas line 310 being connected to a second gas inlet 2112.

When the detection system executes the self-cleaning mode, the external gas is changed into clean gas through the self-cleaning filter 320, the clean gas flows into the lossless switcher 210 through the self-cleaning gas pipeline 310, and enters the aerosol detection device 100 through the second gas inlet 2112 and the gas outlet 2113 for self-cleaning and zeroing of the system.

In some embodiments, referring to fig. 2, the sampling module 400 includes a gas discharge line 440, a sampling flow meter 410, a sampling pump 420, and an exhaust filter 430, an inlet end of the gas discharge line 440 is connected to the aerosol detection device 100, and an outlet end of the gas discharge line 440 is provided with the exhaust filter 430.

The sampling flowmeter 410 is used for feeding back the sampling flow and ensuring that the whole system is in a constant-current sampling state, the sampling pump 420 provides sub-sampling power, the exhaust filter 430 is used for filtering the detected aerosol, secondary pollution to the air is prevented, and the detection environment is protected.

In some embodiments, with continued reference to fig. 2, the aerosol detection device 100 has a sheath gas module 150, the sheath gas module 150 being configured to provide a clean gas into the detection light chamber 110 of the aerosol detection device 100 to sheath gas the gas to be detected.

That is, the aerosol detection device 100 has a sheath gas protection function, which can prevent the aerosol to be detected from staying in the detection chamber, and pollute the devices in the detection chamber, and affect the accuracy and the service life of measurement.

Sheath gas module 150 includes sheath gas outlet 154, sheath gas inlet 153, sheath gas meter 151, and sheath gas filter 152.

The sheath gas flow meter 151 is used to detect whether the sheath gas flow rate of the system is in a normal state, so that the sheath gas protection of the bioaerosol detection apparatus 100 operates normally.

The sheath gas filter 152 is used for filtering particles in the air to form clean air so as to perform sheath gas protection on the gas to be tested.

In some embodiments, referring to fig. 2 and 3, the aerosol detection device 100 detects the composition of the light chamber 110, the detection light source 120, the detection sensor 140, the detection trap 130, and the like.

The detection light chamber 110 is used for detecting and distinguishing aerosol particles, the detection light source 120 is used for providing a light source for the whole detection device, the detection sensor 140 is used for collecting and detecting scattered light generated by the particles irradiated by the light source, and the detection trap 130 is used for absorbing the light source to prevent interference to detection.

In some embodiments, referring to fig. 3 and 4, the detection system includes a base 700, the aerosol detection device 100, the master control unit 500, and the data uploading unit 600 are disposed on the base 700, the master control unit 500 and the data uploading unit 600 are disposed beside the aerosol detection device 100, and the switching module 200 is disposed above the aerosol detection device 100.

The master control unit 500 and the data uploading unit 600 are arranged beside the detection light source 120, the sampling pump 420 is arranged above the detection light source 120, and the space area above the detection light source 120 is fully utilized.

The base 700 is used as a mounting carrier of each module unit, and has compact and reasonable layout and reliable structure.

In some embodiments, the same sidewall of the aerosol detection device 100 is provided with a fixing plate 710, and the self-cleaning filter 320, the exhaust filter 430, and the sheath filter 152 are all disposed on the fixing plate 710.

The three filters are arranged on the same side of the aerosol detection device 100, so that the whole structure layout is reasonable, and the pipeline connection is convenient.

The fixing plate 710 is provided with three clamping positions which are sequentially arranged at intervals, and the self-cleaning filter 320, the exhaust filter 430 and the sheath gas filter 152 are arranged in the corresponding clamping positions, so that the installation and the maintenance are convenient.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. A bioaerosol detection system, comprising:

aerosol detection means for detecting a bio-sol in a gas to be measured;

A sampling module for providing sampling power to the detection system;

A self-cleaning module for providing clean gas for the aerosol detection device and the sampling module;

The switching module is provided with a first gas inlet, a second gas inlet and a gas outlet, wherein the first gas inlet is communicated with a space where gas to be detected is located, the second gas inlet is connected with the self-cleaning module, the gas outlet is connected with the aerosol detection device, the first gas inlet is communicated with the gas outlet when the detection system is in a detection mode, the second gas inlet is communicated with the gas outlet when the detection system is in a self-cleaning mode, and the switching module is used for switching the detection system between the detection mode and the self-cleaning mode;

A master control unit which is communicated with the aerosol detection device, the sampling module and the switching module;

And the data uploading unit is communicated with the master control unit and is used for uploading the received data from the master control unit to a remote server.

2. The bioaerosol detection system as claimed in claim 1, wherein,

The switching module is a lossless switcher, and the lossless switcher comprises a switching valve body and an action executing unit;

The switching valve body is provided with the first gas inlet, the second gas inlet and the gas outlet;

The action executing unit comprises a motor, a first limiting optocoupler, a second limiting optocoupler and an action controller, wherein the action controller is used for controlling the motor to perform forward rotation or reverse rotation, the first limiting optocoupler is used for detecting the forward rotation position of the motor, and the second limiting optocoupler is used for detecting the reverse rotation position of the motor;

when the motor rotates forward in place, the first gas inlet is communicated with the gas outlet;

When the motor is reversed in position, the second gas inlet is communicated with the gas outlet.

3. The bioaerosol detection system as claimed in claim 1, wherein,

The self-cleaning module comprises a self-cleaning gas pipeline and a self-cleaning filter, wherein the self-cleaning filter is used for filtering gas flowing through the self-cleaning gas pipeline to obtain clean gas, and the self-cleaning gas pipeline is connected with the second gas inlet.

4. The bioaerosol detection system as claimed in claim 1, wherein,

The sampling module comprises a gas discharge pipeline, a sampling flowmeter, a sampling pump and an exhaust filter, wherein the gas inlet end of the gas discharge pipeline is connected with the aerosol detection device, and the gas outlet end of the gas discharge pipeline is provided with the exhaust filter.

5. The bioaerosol detection system as claimed in claim 1, wherein,

The aerosol detection device is provided with a sheath gas module, and the sheath gas module is used for providing clean gas for a detection light chamber of the aerosol detection device so as to conduct sheath gas protection on gas to be detected.

6. The bioaerosol detection system as claimed in any one of claims 1-5, wherein,

The device comprises a base, wherein the aerosol detection device, the master control unit and the data uploading unit are arranged on the base, and the master control unit and the data uploading unit are arranged at the side of the aerosol detection device;

the switching module is arranged above the aerosol detection device.

7. The bioaerosol detection system as claimed in claim 6, wherein,

The self-cleaning module comprises a self-cleaning filter, the sampling module comprises an exhaust filter, and the aerosol detection device comprises a sheath gas filter;

The aerosol detection device is characterized in that a fixing plate is arranged on the same side wall of the aerosol detection device, and the self-cleaning filter, the exhaust filter and the sheath gas filter are arranged on the fixing plate.

8. The bioaerosol detection system as claimed in claim 7, wherein,

The fixing plate is provided with three clamping positions which are sequentially arranged at intervals, and the self-cleaning filter, the exhaust filter and the sheath gas filter are arranged in the corresponding clamping positions.

9. The bioaerosol detection system as claimed in claim 6, wherein,

The aerosol detection device comprises a detection light chamber, wherein detection traps and detection light sources are arranged on two opposite sides of the detection light chamber, and the master control unit and the data uploading unit are arranged on the side of the detection light sources.

10. The bioaerosol detection system as claimed in claim 9, wherein,

The sampling module comprises a sampling pump, and the sampling pump is arranged above the detection light source.