阅读说明：本技术 一种空气质量监测装置 (Air quality monitoring device ) 是由 武群 柴敏平 孟骅童 王映清 于 2021-08-13 设计创作，主要内容包括：本发明提供一种空气质量监测装置,包括柜体,柜体内设有控制组件、校准组件、零气发生组件及空压机,空压机上设有空压机出气管,空压机出气管与零气发生组件连通,零气发生组件包括零气发生器,零气发生器连通校准组件,控制组件包括控制设备,控制设备用于控制校准组件、零气发生组件及空压机对空气质量进行监测。本发明通过将控制组件、校准组件、零气发生组件及空压机集成在柜体内,使得在气体污染测试时,无需将相关器件进行组装及调节,通过在控制组件内设置的相应的程序,相应的器件进行自动完成测试,降低测试人员的专业性及从业时间,实现空气质量监测装置的气态污染物测试过程的自动化与低门槛化,节省了人力成本和时间成本。(The invention provides an air quality monitoring device which comprises a cabinet body, wherein a control assembly, a calibration assembly, a zero gas generation assembly and an air compressor are arranged in the cabinet body, an air outlet pipe of the air compressor is arranged on the air compressor, the air outlet pipe of the air compressor is communicated with the zero gas generation assembly, the zero gas generation assembly comprises a zero gas generator, the zero gas generator is communicated with the calibration assembly, the control assembly comprises control equipment, and the control equipment is used for controlling the calibration assembly, the zero gas generation assembly and the air compressor to monitor the air quality. According to the invention, the control assembly, the calibration assembly, the zero gas generation assembly and the air compressor are integrated in the cabinet body, so that related devices do not need to be assembled and adjusted during gas pollution testing, and the corresponding devices automatically complete testing through corresponding programs arranged in the control assembly, thereby reducing the professional and working time of testers, realizing automation and low threshold of the testing process of the gaseous pollutants of the air quality monitoring device, and saving the labor cost and the time cost.)

1. The utility model provides an air quality monitoring device, a serial communication port, the intelligent cabinet temperature adjusting device comprises a cabinet body, the internal control assembly, calibration subassembly, the zero gas that down are equipped with in proper order and take place subassembly and air compressor machine from last, be equipped with the air compressor machine outlet duct on the air compressor machine, the air compressor machine outlet duct passes the lateral wall of the cabinet body with the subassembly intercommunication takes place for zero gas, the subassembly takes place for zero gas includes zero gas generator, zero gas generator intercommunication the calibration subassembly, control assembly includes controlgear, controlgear is used for control the subassembly is taken place for calibration subassembly, zero gas and the air compressor machine monitors air quality.

2. The air quality monitoring device of claim 1, wherein the zero gas generation assembly further comprises a first air outlet pipe and a first air inlet pipe, and the first air inlet pipe is connected with the air compressor air outlet pipe.

3. The air quality monitoring device of claim 2, wherein the calibration assembly comprises a second air inlet pipe, a second air outlet pipe and a calibrator connected with the second air inlet pipe and the second air outlet pipe, and the second air inlet pipe is communicated with the first air outlet pipe.

4. The air quality monitoring device according to claim 3, wherein an air inlet is arranged on the cabinet body, and the air inlet is communicated with the calibrator and provides standard gas for the calibrator.

5. The air quality monitoring device according to claim 4, wherein the cabinet body is further provided with an electromagnetic valve group, and two ends of the electromagnetic valve group are respectively connected with the second air outlet pipe and the air inlet.

6. The air quality monitoring device of claim 1, wherein the control equipment comprises an industrial personal computer and a PLC (programmable logic controller), the industrial personal computer is connected with the PLC through a 485 communication cable, the industrial personal computer issues an operation instruction to the PLC, and the PLC controls the calibration assembly, the zero gas generation assembly and the air compressor to monitor the air quality.

7. The air quality monitoring device of claim 1, wherein the control assembly is further covered with a protective cover.

8. The air quality monitoring device according to claim 1, wherein a fixing bracket is arranged at the bottom of the air compressor and fixed on the cabinet body.

9. The air quality monitoring device of claim 1, wherein the cabinet further comprises a plurality of rotating wheels, and the rotating wheels are respectively arranged on four bottom corners of the cabinet.

10. The air quality monitoring device of claim 4, wherein the set of solenoid valves is a plurality of normally closed solenoid valves.

Technical Field

The invention relates to the technical field of air monitoring, in particular to an air quality monitoring device.

Background

According to national execution standards of flue gas analyzers, in order to guarantee the stability and reliability of micro environmental air quality monitoring equipment, before equipment leaves a factory, performance indexes such as indication errors, repeatability, response time, stability, zero drift and the like of gas pollutant parameters such as SO2, CO, O3, NO2, TVOC (total volatile organic compound) and the like need to be tested respectively, and the equipment can leave the factory after the parameters of related performance indexes are confirmed to meet national standard requirements.

The national standard stipulates that the tested equipment needs to perform a certain test under the standard gas with different specified concentrations or specified concentrations, and generally, when an enterprise purchases the standard gas, only the high-concentration gas is purchased due to cost, and when the low-concentration standard gas is required to be tested, the high-concentration standard gas is diluted to the required low-concentration standard gas by using auxiliary equipment.

During the equipment test, the tester needs to participate in the whole process, and according to the national standard requirement, the monitoring value of the tested equipment is recorded at intervals or the time and other parameters are recorded after the specified data value is reached. After the parameters are collected, the tester needs to sort the collected data, perform calculation analysis according to national standard requirements, and finally judge whether the equipment is qualified or not according to various calculation results, on one hand, the requirements on the speciality and the working time of the tester are high due to the fact that the speciality is high and a large amount of calculation is involved; on the other hand, due to the fact that the items involved in the equipment test are the test period and the test items are more factors, the overall completion of one test work takes longer time. For enterprises, the labor cost and the time cost in the production process are increased by the testing work of the equipment, and the operation and the development of the enterprises are not facilitated.

Disclosure of Invention

Based on the above, the invention aims to provide an air quality monitoring device, which is used for solving the problems of long time consumption and high requirement on professional understanding of testers in the equipment testing work and realizing automation and low threshold of the testing process of gaseous pollutants of micro environmental air quality monitoring equipment.

The invention provides an air quality monitoring device, which comprises a cabinet body, wherein a control assembly, a calibration assembly, a zero gas generation assembly and an air compressor are sequentially arranged in the cabinet body from top to bottom, an air compressor air outlet pipe is arranged on the air compressor, the air compressor air outlet pipe penetrates through the side wall of the cabinet body to be communicated with the zero gas generation assembly, the zero gas generation assembly comprises a zero gas generator, the zero gas generator is communicated with the calibration assembly, the control assembly comprises control equipment, and the control equipment is used for controlling the calibration assembly, the zero gas generation assembly and the air compressor to monitor the air quality.

Furthermore, zero gas generation component still includes first outlet duct and first intake pipe, first intake pipe with the air compressor machine outlet duct is connected.

Furthermore, the calibration assembly comprises a second air inlet pipe, a second air outlet pipe and a calibrator connected with the second air inlet pipe and the second air outlet pipe, and the second air inlet pipe is communicated with the first air outlet pipe.

Further, be equipped with the air inlet on the cabinet body, the air inlet intercommunication the calibrator, and do the calibrator provides standard gas.

Furthermore, still be equipped with the electromagnetism valves on the cabinet body, the both ends of electromagnetism valves are connected respectively the second outlet duct with the air inlet.

Further, control equipment includes industrial computer and PLC controller, the industrial computer with the PLC controller adopts the 485 communication cables to connect, the industrial computer reaches operating instruction the PLC controller, through the PLC controller control calibration subassembly, zero gas take place subassembly and air compressor machine and monitor the air quality.

Furthermore, a protective cover is covered on the control assembly.

Further, the bottom of air compressor machine is equipped with the fixed bolster, the fixed bolster is fixed in on the cabinet body.

Further, the cabinet body still includes a plurality of rotation wheels, it locates to rotate the wheel branch on four base angles of the cabinet body.

Further, the electromagnetic valve group is a plurality of normally closed electromagnetic valves.

Compared with the prior art, the invention has the beneficial effects that: through with the control assembly, the calibration subassembly, zero gas takes place subassembly and air compressor machine integration at the internal, make when the gas pollution test, need not to assemble relevant device and adjust, and through the corresponding procedure that sets up in the control assembly, make when the gas pollution test, corresponding device carries out the automatic test of accomplishing, on the one hand reduced tester's specialty and practitioner time, the gaseous pollutant test process's of having realized air quality monitoring device automation and low threshold, on the other hand need not tester whole participation, the human cost and the time cost have further been saved.

Drawings

FIG. 1 is an overall configuration diagram of an air quality monitoring apparatus according to an embodiment of the present invention;

FIG. 2 is a distribution diagram of components of an air quality monitoring apparatus according to an embodiment of the present invention;

FIG. 3 is a rear view of an air quality monitoring device in an embodiment of the present invention;

FIG. 4 is an overall structural view of a control unit according to an embodiment of the present invention;

fig. 5 is an overall structural view of the solenoid valve assembly in the embodiment of the present invention;

description of the main element symbols:

cabinet body	100	Power switch	240
				Control assembly	200	Second air inlet pipe	310
Calibration assembly	300	Second air outlet pipe	320
				Zero gas generating assembly	400	Zero gas generator	410
Air compressor	500	First air inlet pipe	420
				Display device	110	First air outlet pipe	430
Rotary knob	120	Air outlet pipe of air compressor	510
				Air inlet	130	SO2 standard gas interface	141
Electromagnetic valve group	140	CO standard gas interface	142
				Industrial control machine	210	NO2 standard gas interface	143
PLC controller	220	TVOC standard gas interface	144
				Power supply	230

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, an air quality monitoring device according to an embodiment of the present invention is shown, and includes a cabinet 100, a control component 200, a calibration component 300, a zero gas generation component 400, and an air compressor 500 are sequentially disposed in the cabinet 100 from top to bottom, an air compressor outlet pipe 510 is disposed on the air compressor 500, the air compressor outlet pipe 510 passes through a side wall of the cabinet 100 and is communicated with the zero gas generation component 400, the zero gas generation component 400 includes a zero gas generator 410, the zero gas generator 410 is communicated with the calibration component 300, the control component 200 includes a control device, and the control device is configured to control the calibration component 300, the zero gas generation component 400, and the air compressor 500 to monitor air quality.

It can be understood that the air compressor 500, the zero gas generation assembly 400, the calibration assembly 300 and other auxiliary testing devices are systematically integrated, and meanwhile, the control assembly 200 is used for orderly sending and executing instructions to the auxiliary testing devices to complete a series of testing operations of the air quality monitoring device.

Specifically, the zero gas generation assembly 400 further includes a first gas outlet pipe 430 and a first gas inlet pipe 420, and the first gas inlet pipe 420 is connected to the air compressor gas outlet pipe 510; the calibration assembly 300 comprises a second air inlet pipe 310, a second air outlet pipe 320 and a calibration instrument for connecting the second air inlet pipe 310 and the second air outlet pipe 320, wherein the second air inlet pipe 310 is communicated with the first air outlet pipe 430.

Preferably, the calibrator is a dynamic calibrator or a calibrator having the same function.

Further, an air inlet 130 is arranged on the cabinet body 100, and the air inlet 130 is communicated with the calibrator and provides standard gas for the calibrator. The cabinet body 100 is further provided with an electromagnetic valve group 140, two ends of the electromagnetic valve group 140 are respectively connected with the second air outlet pipe 320 and the air inlet 130, the cabinet body 100 is further provided with a display device 110 and a knob 120, and the knob 120 is used for controlling the air quality monitoring device to be powered on.

It can be understood that the main gas pipeline of the air quality monitoring device is connected with an air compressor outlet pipe 510, a zero gas generator inlet pipe is used as the first inlet pipe 420, a zero gas generator outlet pipe is used as the first outlet pipe 430, a zero gas inlet pipe is used as the second inlet pipe 310, a standard gas inlet pipe is used as the second inlet pipe 130, a standard gas outlet pipe is used as the second outlet pipe 320, and the solenoid valve group 140. The interface connection sequence of the air quality monitoring device is air compressor air outlet pipe 510-zero generator air inlet pipe, zero generator air outlet-dynamic calibrator zero air inlet pipe, dynamic calibrator standard air inlet 130-electromagnetic valve group 140. Wherein the standard gas outlet of the dynamic gas calibrator is connected to the gas sampling gas inlet 130 of the device under test during the test.

The device is powered on through a knob 120 arranged below the display device 110, the knob 120 is a device main switch, after the device is powered on, the test software can be automatically started, after the connection of the device is confirmed to be correct, a test starting button of a software interface of the display device 110 is clicked, and after the test is finished, the interface is automatically switched to a test finished interface.

It should be noted that, the solenoid valve group 140 has 4 groups of solenoid valves and corresponding quick couplers, the 4 groups of quick couplers are, from top to bottom, an SO2 standard gas interface, a CO standard gas interface, an NO2 standard gas interface, and a TVOC standard gas interface, and the solenoid valves are normally closed solenoid valves.

In the present application, the control assembly 200 is also covered with a protective cover. A fixed bracket is arranged at the bottom of the air compressor 500 and fixed on the cabinet body 100; the cabinet body 100 further includes a plurality of rotating wheels, and the rotating wheels are respectively disposed at four bottom corners of the cabinet body 100.

The protective cover can effectively prevent external dust or sundries from entering the control equipment to cause damage; the rotating wheel can enable the whole air quality monitoring device to move, the whole portability is improved, and the use of workers is facilitated.

In this application, controlgear includes industrial computer 210 and PLC controller 220, industrial computer 210 with PLC controller 220 adopts the 485 communication cable to connect, industrial computer 210 reaches operating instruction PLC controller 220, through PLC controller 220 control calibration subassembly 300, zero gas generation subassembly 400 and air compressor machine 500 monitor the air quality, controlgear still include a power supply 230 and with switch 240 that power supply 230, industrial computer 210 and PLC controller 220 are connected.

It can be understood, industrial computer 210 and PLC controller 220 adopt the 485 communication cable to be connected, tester's operation interaction is at industrial computer 210 software interface end, industrial computer 210 operating instruction can assign earlier to PLC controller 220 end, control each subassembly execution corresponding action by PLC controller 220 end again, wherein PLC controller 220 main control electromagnetism valves 140 and dynamic calibration appearance, PLC controller 220 adopts the 485 cable to be connected with the dynamic calibration appearance, corresponding instruction is also assigned through the 485 cable communication. Besides, the industrial personal computer 210 is connected with the tested device through a 485 cable, and data of the tested device is sent to the industrial personal computer 210 end through the circuit.

It should be noted that the cabinet 100 is designed to have a vertical structure, and is configured with an air compressor 500 placement position, a zero gas generator 410 installation position, a dynamic gas calibration instrument installation position, an industrial personal computer 210 installation position, and an electrical component installation position. The air compressor 500 is arranged at the lowest part of the cabinet body 100, the zero gas generator 410 is arranged above the air compressor 500, the dynamic calibrator is arranged above the zero gas generator 410, and the arrangement positions of all components are convenient for connecting pipelines. The mounting position of the industrial personal computer 210 and the mounting position of the electric components are positioned at the top of the cabinet body 100, and the mounting position of the industrial personal computer 210 and the mounting position of the electric components divide the upper area into a front area and a rear area, so that the space of the cabinet body 100 can be effectively utilized, and the industrial personal computer 210 is also favorable for the daily operation of a tester at the top of the cabinet body 100.

The test content of the air quality monitoring device mainly comprises the measurement of indicating error, repeatability, stability and response time of 5 gas pollutants, wherein the TVOC further comprises the measurement of zero drift and span drift besides the measurement. The 5 gas contaminant testing methods are consistent, the main difference being that the gases provided are of different types. The air quality monitoring device can complete the testing tasks of SO2, CO, NO2, TVOC and O3 in sequence during automatic testing. When the indicating value error is tested, three kinds of gas with the concentration of 20%, 50% and 80% are respectively provided, the three kinds of concentration standard gas are respectively communicated with a sampling head of the tested equipment for 5min, and the tested equipment transmits the monitored corresponding indicating value to the industrial personal computer 210 end of the comprehensive testing equipment after the concentration standard gas is communicated for 5min each time. When the repeatability test is executed, the air quality monitoring device provides standard gas with the concentration of 50% for 35min, and corresponding indication values of the tested equipment are transmitted to the industrial personal computer 210 end of the air quality monitoring device every 5 min. During the property stability test, the air quality monitoring device provides gas with the concentration of 80% for 20min, and corresponding indication values are transmitted to the industrial personal computer 210 end of the air quality monitoring device every 5 min. When the zero drift and range drift tests are executed, the air quality monitoring device firstly provides 5min of zero gas to the tested equipment and then provides 5min of TVOC gas with 80% concentration, indicating values of the 5min of zero gas and 5min of TVOC gas with 80% concentration are respectively transmitted to the end of the industrial personal computer 210, and the instructions are executed for 4 times. When the response time test is executed, the air quality monitoring device can provide 50% of standard gas to the end of the tested equipment, when the corresponding indication value of the tested equipment rises to 80%, the tested equipment transmits the time parameter at the moment to the end of the industrial personal computer 210, then the standard gas connecting pipeline is closed, and after the indication value of the tested equipment falls to a stable state, the above work is executed again for 3 times. After the test is finished, the air quality monitoring device processes the collected data and automatically generates a test report. If necessary, the tester can connect a printer to print the report or export the electronic version by using a USB flash disk.

In summary, in the air quality monitoring device in the above embodiment of the present invention, the control component, the calibration component, the zero gas generation component and the air compressor are integrated in the cabinet, so that, during the gas pollution test, related devices do not need to be assembled and adjusted, and through a corresponding program arranged in the control component, the corresponding devices automatically complete the test during the gas pollution test, thereby reducing the professional and working time of testers, realizing automation and threshold reduction of the testing process of the air quality monitoring device for gaseous pollutants, and on the other hand, avoiding the whole participation of testers, and further saving the labor cost and time cost.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.