CN211426429U

CN211426429U - Volatile organic compound on-line monitoring device

Info

Publication number: CN211426429U
Application number: CN201922464955.3U
Authority: CN
Inventors: 江建平
Original assignee: Shenzhen Yifan Technology Co ltd
Current assignee: Shenzhen Yifan Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-04
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the technical field of gas monitoring, in particular to an online monitoring device for volatile organic compounds, which comprises a controller, a case, a gas collecting unit, a gas processing unit, a detector and an alarm, wherein the controller is provided with a display screen, and the case is provided with a containing cavity and a gas collecting port for communicating the containing cavity with the outside; the gas collecting unit comprises a first filter and an air pump, and the first filter and the air pump are both arranged in the accommodating cavity and are respectively and electrically connected with the controller; the gas processing unit comprises an electronic condenser, a moving pump, a pressure relief valve and a flowmeter, the electronic condenser, the moving pump, the pressure relief valve and the flowmeter are all installed in the containing cavity and are respectively electrically connected with the controller, and the moving pump is connected with the electronic condenser; the detector is arranged in the accommodating cavity and electrically connected with the controller so as to detect the concentration of organic matters in the gas; the alarm is installed on the machine case and is electrically connected with the controller, and the alarm can send out an alarm signal.

Description

Volatile organic compound on-line monitoring device

Technical Field

The utility model relates to a gaseous monitoring technology field specifically is a volatile organic compounds on-line monitoring device.

Background

The volatile organic compound is an organic compound having a saturated vapor pressure of more than 133.32Pa at normal temperature and a boiling point of 50 to 260 ℃ or less at normal pressure, or an organic compound which can exist in the air in an evaporated form at normal temperature and normal pressure. Volatile organic compounds have a great influence on human health, can harm the liver, kidney, brain and nervous system of a human, cause serious consequences such as hypomnesis and even possibly cause cancer.

In order to achieve sustainable development of ecological environment, the flue gas discharged from a plant area needs to be treated to some extent and then discharged into the atmosphere, so that the flue gas discharged from the plant area needs to be monitored. In the prior art, a plurality of sensors are usually placed at a flue gas to be directly monitored, however, the accuracy of a monitoring result is low due to the influence of the temperature and the humidity in the flue gas, and the actual organic matter concentration cannot be well reflected.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

For solving the above problem, the utility model provides a volatile organic compounds on-line monitoring device can get rid of the humiture interference, and the accurate organic compounds concentration that detects out in the gas.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an online monitoring device for volatile organic compounds comprises a controller, a case, a gas collecting unit, a gas processing unit, a detector and an alarm, wherein the controller is provided with a display screen, and the case is provided with a containing cavity and a gas collecting port communicated with the containing cavity and the outside; the gas collecting unit comprises a first filter and a gas pump, the first filter and the gas pump are both arranged in the containing cavity and are respectively and electrically connected with the controller, the gas inlet end of the first filter is communicated with the gas collecting port, and the gas outlet end of the first filter is communicated with the gas inlet end of the gas pump; the gas processing unit comprises an electronic condenser, a moving pump, a pressure relief valve and a flowmeter, the electronic condenser, the moving pump, the pressure relief valve and the flowmeter are all installed in the containing cavity and are respectively electrically connected with the controller, the gas inlet end of the electronic condenser is communicated with the gas outlet end of the gas pump, the gas outlet end is communicated with the gas inlet end of the pressure relief valve, the gas outlet end of the pressure relief valve is communicated with the gas inlet end of the flowmeter, and the moving pump is connected with the electronic condenser so as to discharge cooling water in the electronic condenser; the detector is arranged in the accommodating cavity, is electrically connected with the controller, and is communicated with the gas outlet end of the flowmeter at the gas inlet end so as to detect the concentration of organic matters in the gas and display the concentration on the display screen; the alarm is installed on quick-witted case to with controller electric connection, when the numerical value on the display screen is greater than the default, alarm can send alarm signal.

Preferably, the gas processing unit still includes oil water filter and second filter, and oil water filter and second filter are all installed in holding the intracavity to respectively with controller electric connection, the inlet end of oil water filter communicates with the end of giving vent to anger of electron condenser, the end of giving vent to anger communicates with the inlet end of second filter, the end of giving vent to anger of second filter communicates with the inlet end of pressure relief valve, so that the end of giving vent to anger of electron condenser communicates with the inlet end of pressure relief valve.

Preferably, the volatile organic compound online monitoring device further comprises a heat dissipation fan, a first ventilation hole and a second ventilation hole which are communicated with the accommodating cavity and the outside are further formed in the case, the heat dissipation fan is installed in the accommodating cavity, and an air outlet of the heat dissipation fan is communicated with the second ventilation hole so as to discharge heat in the accommodating cavity to the outside.

Preferably, this volatile organic compounds on-line monitoring device still includes the dust screen, and the dust screen is installed in the outside of second venthole to avoid outside dust to get into from the second venthole and hold the intracavity.

Preferably, this volatile organic compounds on-line monitoring device still includes the case lid, holds the chamber and be the front opening, and case lid rotatable coupling is on quick-witted case to the opening that holds the chamber is closed or opened to the lid, and the controller is installed on the case lid.

Preferably, the cover includes a first cover and a second cover, the first cover and the second cover are respectively rotatably connected to the chassis, and the controller is mounted on the first cover.

(III) advantageous effects

The utility model provides a volatile organic compounds on-line monitoring device possesses following beneficial effect: during the use, rotate through controller control air pump, can be so that produce the negative pressure in the inlet channel, in order to drive the gas flow, and then make gas pass through in the gas acquisition mouth gets into the inlet channel, then through first filter, filter the dust large granule in the gas, reentrant electronic condenser is interior, carry out temperature regulation, and simultaneously, move the pump and carry out drainage treatment, with the humidity of adjusting gas, carry out gas pressure through decompressing the valve and decompress, make gas pressure reach the detection demand, carry out the gas flow rate regulation through the flowmeter again, finally get into in the detector, carry out organic matter concentration detection, and feed back the testing result to the display screen on, when numerical value on the display screen is greater than the default, the alarm can send alarm signal. Generally speaking, the volatile organic compound on-line monitoring device regulates and controls the temperature and the humidity of detected gas before detection, so that the detection requirement of a detector is met, the interference of temperature and humidity is eliminated, and the concentration of organic compounds in the gas is accurately detected.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 shows a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 shows a first internal structural diagram of an embodiment of the present invention;

fig. 3 shows a schematic diagram of the internal structure of the embodiment of the present invention;

fig. 4 shows a schematic structural diagram of a chassis in an embodiment of the present invention;

FIG. 5 shows an enlarged view of portion A of FIG. 4;

fig. 6 shows a block flow diagram of an embodiment of the invention;

fig. 7 shows an electrical connection diagram of an embodiment of the present invention.

In the figure: the device comprises a controller 1, a case 2, a holding cavity 21, a first vent hole 22, a second vent hole 23, a gas acquisition unit 3, a first filter 31, an air pump 32, a gas processing unit 4, an electronic condenser 41, a moving pump 42, a pressure relief valve 43, a flow meter 44, an oil-water filter 45, a second filter 46, a detector 5, an alarm 6, a cooling fan 7, a dust screen 8, a case cover 9, a first case cover 91 and a second case cover 92.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-7, the embodiment of the utility model provides an online monitoring device for volatile organic compounds, which comprises a controller 1, a case 2, a gas collection unit 3, a gas processing unit 4, a detector 5 and an alarm 6, wherein the controller 1 is provided with a display screen, and the case 2 is provided with a containing cavity 21 and a gas collection port communicating the containing cavity 21 with the outside; the gas collection unit 3 comprises a first filter 31 and a gas pump 32, the first filter 31 and the gas pump 32 are both arranged in the accommodating cavity 21 and are respectively and electrically connected with the controller 1, the gas inlet end of the first filter 31 is communicated with the gas collection port, and the gas outlet end is communicated with the gas inlet end of the gas pump 32; the first filter 31 mainly filters out larger dust particles in the air, and the air pump 32 is used for pumping the air;

the gas processing unit 4 comprises an electronic condenser 41, a moving pump 42, a decompression valve 43 and a flow meter 44, wherein the electronic condenser 41, the moving pump 42, the decompression valve 43 and the flow meter 44 are all arranged in the accommodating cavity 21 and are respectively electrically connected with the controller 1, the gas inlet end of the electronic condenser 41 is communicated with the gas outlet end of the gas pump 32, the gas outlet end is communicated with the gas inlet end of the decompression valve 43, the gas outlet end of the decompression valve 43 is communicated with the gas inlet end of the flow meter 44, and the moving pump 42 is connected with the electronic condenser 41 so as to discharge cooling water in the electronic condenser 41; the electronic condenser 41 is used for adjusting the temperature of the gas, and the moving pump 42 is used for discharging cooling water generated when the electronic condenser 41 adjusts the temperature of the gas so as to adjust the humidity of the gas, so that the detection data of the detector 5 is more accurate, meanwhile, the damage caused by a sensor in the detector 5 is avoided, and the service life of the sensor is prolonged; the pressure relief valve 43 is used for resolving the gas with higher pressure pumped by the gas pump 32, and the flow meter 44 controls the flow rate of the gas flowing into the detector 5, so that the detection result is more accurate;

the detector 5 is arranged in the accommodating cavity 21 and is electrically connected with the controller 1, and the air inlet end of the detector is communicated with the air outlet end of the flowmeter 44 so as to detect the concentration of organic matters in the gas and display the concentration on a display screen; alarm 6 installs on quick-witted case 2 to with controller 1 electric connection, when the numerical value on the display screen is greater than the default, alarm 6 can send alarm signal.

According to the above scheme, during the use, it rotates to control air pump 32 through controller 1, can be so that produce the negative pressure in the inlet channel, in order to drive gas flow, and then make gas pass through gas acquisition mouth entering inlet channel, then through first filter 31, filter the dust large granule in the gas, reentrant electronic condenser 41 is interior, carry out temperature regulation, and simultaneously, move pump 42 and carry out drainage treatment, with the humidity of adjusting gas, carry out gas pressure through pressure relief valve 43 and decompress, make gas pressure reach the detection demand, carry out the regulation of gas flow rate through flowmeter 44 again, finally, get into in detector 5, carry out organic matter concentration detection, and feed back the testing result to the display screen on, when numerical value on the display screen is greater than the default, alarm 6 can send alarm signal. Generally speaking, the volatile organic compound on-line monitoring device regulates and controls the temperature and the humidity of the detected gas before detection, so that the detection requirement of the detector 5 is met, the interference of temperature and humidity is eliminated, and the concentration of the organic compound in the gas is accurately detected.

In this embodiment, the alarm 6 is an audible and visual alarm, and when the value on the display screen is greater than the preset value, the alarm 6 can give out an alarm sound and can flash to remind the detector that the organic matter concentration of the detected gas exceeds the standard. The first filter 31, the air pump 32, the electronic condenser 41, the carry pump 42, the decompression valve 43, and the flow meter 44 are all mounted in the accommodation chamber 21 by screws.

Further, in order to improve the accuracy of the concentration of the organic compounds in the gas, the gas processing unit 4 further includes an oil-water filter 45 and a second filter 46, the oil-water filter 45 and the second filter 46 are both installed in the accommodating cavity 21 and are respectively electrically connected to the controller 1, an air inlet end of the oil-water filter 45 is communicated with an air outlet end of the electronic condenser 41, the air outlet end is communicated with an air inlet end of the second filter 46, and an air outlet end of the second filter 46 is communicated with an air inlet end of the decompression valve 43, so that the air outlet end of the electronic condenser 41 is communicated with the air inlet end of the decompression valve 43.

In this embodiment, oil in the gas to be detected can be filtered to oil water filter 45, avoids the sensor in detector 5 to receive the injury, influences the degree of accuracy of testing result, and the moisture to in the gas to be detected that can also be further filters, improves the dryness fraction of the gas to be detected, and second filter 46 can filter the dust tiny particle in the gas to be detected, makes the testing result more accurate.

Further, in order to reduce the temperature in the accommodating cavity 21, the normal operation of each part of the volatile organic compound online monitoring device is ensured, and the service life of each part is prolonged. This volatile organic compounds on-line monitoring device still includes radiator fan 7, still is equipped with the intercommunication on quick-witted case 2 and holds chamber 21 and outside first ventilation hole 22 and second ventilation hole 23, and radiator fan 7 installs in holding chamber 21, and its air outlet is linked together with second ventilation hole 23 to the heat discharge outside in holding chamber 21.

Further, in order to achieve a better dustproof effect, the volatile organic compound online monitoring device further comprises a dustproof net 8, wherein the dustproof net 8 is installed on the outer side of the second ventilation hole 23, so that external dust is prevented from entering the accommodating cavity 21 from the second ventilation hole 23.

Further, this volatile organic compounds on-line monitoring device still includes case lid 9, holds the chamber 21 and is the front opening, and case lid 9 swivelling joint is on quick-witted case 2 to the opening that holds chamber 21 is closed or opened to the lid, and controller 1 installs on case lid 9.

Further, in order to protect the controller 1 better, it is prevented from being damaged by collision of a foreign object. The cover 9 includes a first cover 91 and a second cover 92, the first cover 91 and the second cover 92 are respectively rotatably connected to the chassis 2, and the controller 1 is mounted on the first cover 91. In this embodiment, the second box cover 92 is provided with an observation window at a position corresponding to the controller 1, so as to observe the numerical value on the display screen of the controller 1.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An online monitoring device for volatile organic compounds comprises a controller (1), wherein a display screen is arranged on the controller (1), and is characterized by further comprising a case (2), a gas acquisition unit (3), a gas processing unit (4), a detector (5) and an alarm (6);

the case (2) is provided with an accommodating cavity (21) and a gas collecting port communicated with the accommodating cavity (21) and the outside;

the gas collection unit (3) comprises a first filter (31) and a gas pump (32), the first filter (31) and the gas pump (32) are both arranged in the accommodating cavity (21) and are respectively electrically connected with the controller (1), the gas inlet end of the first filter (31) is communicated with the gas collection port, and the gas outlet end of the first filter is communicated with the gas inlet end of the gas pump (32);

the gas treatment unit (4) comprises an electronic condenser (41), a moving pump (42), a pressure relief valve (43) and a flow meter (44), wherein the electronic condenser (41), the moving pump (42), the pressure relief valve (43) and the flow meter (44) are all installed in the accommodating cavity (21) and are respectively electrically connected with the controller (1), the gas inlet end of the electronic condenser (41) is communicated with the gas outlet end of the gas pump (32), the gas outlet end of the electronic condenser is communicated with the gas inlet end of the pressure relief valve (43), the gas outlet end of the pressure relief valve (43) is communicated with the gas inlet end of the flow meter (44), and the moving pump (42) is connected with the electronic condenser (41) to discharge cooling water in the electronic condenser (41);

the detector (5) is arranged in the accommodating cavity (21) and is electrically connected with the controller (1), and the air inlet end of the detector is communicated with the air outlet end of the flowmeter (44) so as to detect the concentration of organic matters in the gas and display the concentration on the display screen;

the alarm (6) is installed on the case (2) and electrically connected with the controller (1), and when the numerical value on the display screen is larger than a preset value, the alarm (6) can send out an alarm signal.

2. The volatile organic compound online monitoring device of claim 1, wherein the gas processing unit (4) further comprises an oil-water filter (45) and a second filter (46), the oil-water filter (45) and the second filter (46) are installed in the accommodating cavity (21) and are respectively electrically connected with the controller (1), the gas inlet end of the oil-water filter (45) is communicated with the gas outlet end of the electronic condenser (41), the gas outlet end of the oil-water filter is communicated with the gas inlet end of the second filter (46), and the gas outlet end of the second filter (46) is communicated with the gas inlet end of the pressure relief valve (43), so that the gas outlet end of the electronic condenser (41) is communicated with the gas inlet end of the pressure relief valve (43).

3. The volatile organic compound online monitoring device of claim 1, further comprising a heat dissipation fan (7), wherein the case (2) is further provided with a first ventilation hole (22) and a second ventilation hole (23) which are used for communicating the accommodating cavity (21) with the outside, the heat dissipation fan (7) is installed in the accommodating cavity (21), and an air outlet of the heat dissipation fan is communicated with the second ventilation hole (23) so as to discharge heat in the accommodating cavity (21) to the outside.

4. The volatile organic compound online monitoring device as claimed in claim 3, further comprising a dust screen (8), wherein the dust screen (8) is installed outside the second vent hole (23) to prevent external dust from entering the accommodating cavity (21) from the second vent hole (23).

5. The volatile organic compound online monitoring device of claim 1, further comprising a box cover (9), wherein the accommodating cavity (21) is open at the front, the box cover (9) is rotatably connected to the case (2) to cover or open the opening of the accommodating cavity (21), and the controller (1) is installed on the box cover (9).

6. The volatile organic compound online monitoring device according to claim 5, wherein the box cover (9) comprises a first box cover (91) and a second box cover (92), the first box cover (91) and the second box cover (92) are respectively rotatably connected to the case (2), and the controller (1) is installed on the first box cover (91).