TWM561794U - VOCs analytical instrument - Google Patents

Abstract

A VOCs analytical instrument is provided. The VOCs analytical instrument includes a sampling tube, an oven, an export tube and an electronic control module arranged in different regions. It is possible to make the parts of the VOCs analytical instrument more compact in order to reduce the volume of VOCs analytical instrument, and to facilitate maintenance and operation of the parts of the VOCs analytical instrument.

Description

Volatile Organic Compound Analysis Chassis

This creation relates to a volatile organic matter analysis technique, in detail, to a volatile organic matter analysis chassis with an integrated design.

With the advancement of the human industry, air pollution is gradually increasing. Therefore, all major industrial countries in the world have regulatory standards for the emission of volatile organic compounds (VOCs), and there is a growing trend that industrial gas environments are often required to be retrofitted. A related detection system that can be used for analytical measurement of the composition of volatile organic substances in gases.

The above volatile organic substances generally refer to organic compounds which have a boiling point of less than 250 ° C under standard conditions (0 ° C and 760 mmHg), and even some people directly define volatile organic substances as all organically present in the atmosphere in a gaseous state. A compound comprising an organic compound such as total hydrocarbon (THC) or non-methane total hydrocarbon (NMHC).

The analysis process of the volatile organic substance for the fluid to be analyzed generally includes sampling of the fluid to be analyzed, detection and analysis processing of volatile organic substances in the fluid to be analyzed, and process steps such as exhaust gas treatment. However, in the prior art, each of the above The process steps are usually performed separately by the inspection machines produced by different manufacturers. Therefore, the relevant industrial manufacturers not only need to separately purchase these inspection machines. The table also needs to be assembled and debugged on site to enable the test machines to cooperate with each other to complete the analysis and processing of volatile organic substances in the fluid to be analyzed.

However, the above prior art mainly has the following technical problems: First, the relevant industrial manufacturers need to leave a large space on the site to place these different testing machines; in addition, since each manufacturer develops the testing machine, The technical specifications used are different, which makes the integration between the test machines difficult due to differences in specifications. Therefore, it usually takes a lot of time to install and debug each test machine to make different The inspection machine can cooperate with each other to realize the detection and analysis processing operation, which will undoubtedly lead to an increase in cost; in addition, since different inspection machines may be arranged at different positions on the site, this arrangement is not conducive to the operation of the operator. In addition, it is not conducive to the subsequent maintenance and repair operations of equipment maintenance personnel.

In view of this, how to simplify the configuration of the analysis machine of the volatile organic substance to overcome the above-mentioned various defects existing in the prior art, that is, the technical problem to be solved in this case.

In view of the above problems of the prior art, the main purpose of the present invention is to provide a volatile organic matter analysis chassis that can provide a simplified on-site configuration to save space.

Another object of the present invention is to provide a volatile organic substance analysis chassis, which can integrate the sampling processing, detection and analysis processing, and exhaust gas processing of the fluid to be analyzed, in addition to facilitating the operation of the field operator, and can also facilitate Subsequent maintenance and repair operations of equipment maintenance personnel.

In order to achieve the above purpose, the present invention provides a volatile organic matter analysis chassis for analyzing volatile organic substances in a fluid to be analyzed, the volatile organic matter analysis chassis comprising: a chassis body, which is provided with a box door And a box internal space, the box door is exposed when exposed a space inside the box, and a first area and a second area below the inner space of the box, and a third area and a fourth area above the inner space of the box; a sampling pipeline, the sampling The pipeline is configured to obtain the fluid to be analyzed, the sampling pipeline has a valve body, the valve system is located in the fourth region, and the flow restricting or allowing the flow of the fluid to be analyzed in the sampling pipeline; an oven, the oven Located in the first area, the oven is provided with a detection pipeline connected to the sampling pipeline to receive the fluid to be analyzed for detecting the concentration or composition of the fluid to be analyzed, and the oven is The inside has a heating environment, and the detection pipeline is heated, and the volatile organic substances of the fluid to be analyzed are separated and sequentially output according to the type, and the oven is further provided with a heater and a circulation fan, and the heater The circulation fan is disposed under the heating environment, the heater provides heat in the heating environment, and the circulation fan is provided in the heating environment to provide an upward flow of a circulating air flow; a pipeline, the outlet pipeline is located in the second zone, the outlet pipeline is connected to the detection pipeline to lead the fluid to be analyzed out to the detection pipeline, and the outlet pipeline is provided with a filter and a negative pressure a pump and a liquid ejector; the filter has a liquid removal filter that filters out the liquid condensed therein in the fluid to be analyzed; the negative pressure pump is connected to the detection line and provides a negative The pressurized gas flow causes the fluid to be analyzed to flow from the detection pipeline to the outlet conduit; the liquid ejector communicates with the filter, receives the liquid condensed by the filter, and discharges to the body of the casing Externally; and an electronic control module, the electronic control module is located in the third area, and the electronic control module controls the operation of the oven, the lead-out pipeline and the sampling pipeline.

Preferably, in the volatile organic substance analysis chassis, the chassis body is further provided with an air inlet, an air outlet and a wind flow guiding structure, and the air inlet is introduced into a heat dissipation airflow outside the chassis body, and the air flow guides The structure guides the heat dissipation airflow, and sequentially passes through the second, third, and fourth regions, and the chassis body is led out by the air outlet.

Preferably, in the volatile organic substance analysis cabinet, the sampling line is provided with a granular material filter and a granular material filter unloading structure, wherein the granular material filter has a granular material filter. The particulate matter filter element provides a filtration process for the particulate matter for the fluid to be analyzed, the particulate matter cartridge unloading structure unloading the particulate matter filter from the sampling line.

Preferably, in the above volatile organic substance analysis cabinet, a clean air supply device is provided, which provides a positive pressure air flow to the sampling pipeline to clean the sampling pipeline or force the unloading The particulate matter filter exits the sampling line.

Preferably, in the above volatile organic substance analysis cabinet, the oven is further provided with an oven door and a first circulation guiding structure, the oven door opens and closes the heating environment, and the first circulation guiding structure is positive In the heating environment, when the volatile organic substance is analyzed for the fluid to be analyzed, the oven door closes the heating environment, and the first circulation guiding structure guides the circulating airflow to circulate in the heating environment, so that the The temperature of each position of the heating environment tends to be uniform, and the temperature of the heating environment is changed according to a separation temperature of the fluid to be analyzed, and the separation temperature is a temperature at which the volatile organic substance is separated from the fluid to be analyzed. Defined.

Preferably, in the above volatile organic substance analysis cabinet, the oven is further provided with an oven door and a second circulation guiding structure, the oven door opens and closes the heating environment, and the second circulation guiding structure is positive For the oven door, when the analysis of the volatile organic substance of the fluid to be analyzed ends, the oven door opens the heating environment, and the second circulation guiding structure guides the circulating airflow away from the heating environment, and brings out The heat of the heated environment accelerates the temperature drop at each location of the heated environment.

Preferably, in the volatile organic substance analysis chassis, the derivation pipeline is further provided with a suspension structure, and the vacuum pump is disposed on the casing body by the suspension structure.

Preferably, in the volatile organic substance analysis chassis, the system has a box opening, and the box door is opened to expose the inner space of the box by the opening of the box, the oven has An oven operation interface, the detection pipeline has a detection pipeline operation interface, the outlet pipeline has an export pipeline operation interface, and the sampling pipeline has a sampling pipeline operation interface, and the electrical control module is The utility model has an electronic control module operation interface, and the oven operation interface, the detection pipeline operation interface, the outlet pipeline operation interface and the sampling pipeline operation interface are open to the cabinet.

Preferably, in the above volatile organic substance analysis chassis, the liquid removal core removal port and a circulation fan removal port are further disposed under the chassis body, and the liquid removal filter removal port is used for removing the removal. a liquid filter cartridge, the circulation fan dismounting port is configured to remove the circulating fan, and the liquid removing cartridge removing port and the circulating fan dismounting port are exposed to the box opening.

Preferably, in the above volatile organic matter analysis cabinet, the sampling pipeline further has a sampling pipeline heating section, and the sampling pipeline heating section is heated to allow the sampling pipeline heating section to be analyzed. The current vapor pressure of the fluid is less than the associated saturated vapor pressure, and the sampling line heating section is adjacent to the upper portion of the oven to shorten communication with the detection line.

In summary, the creation department provides an integrated analysis chassis, which is provided with sampling pipelines, ovens, export pipelines and electronic control modules in different areas of the chassis body to sample and process the fluid to be analyzed. And the analysis processing, and the exhaust gas processing and the like are integrated in the analysis chassis to complete, so that the layout of each component for performing the analysis and detection is more compact, to simplify the configuration of the site, reduce the overall occupied space, and facilitate operation. Personnel operations and maintenance and repair operations of maintenance personnel.

1‧‧‧ volatile organic matter analysis chassis

11‧‧‧Chassis body

111‧‧‧Box door

112‧‧‧ Interior space of the cabinet

1121‧‧‧First area

1122‧‧‧Second area

1123‧‧‧ Third Area

1124‧‧‧ fourth area

113‧‧‧Air inlet

114‧‧‧air outlet

115‧‧‧Airflow guiding structure

116‧‧‧In addition to the liquid filter removal port

117‧‧‧Recycling fan removal port

12‧‧‧Sampling line

121, 121a~121d‧‧‧ body

122‧‧‧Party substance filter

1221‧‧‧Party material filter

123‧‧‧Grain material filter unloading structure

124‧‧‧Sampling pipe heating section

125‧‧‧Sampling pipeline operation interface

13‧‧‧ oven

131‧‧‧Test pipeline

1311‧‧‧Detection pipeline operation interface

132‧‧‧heater

133‧‧‧Circular fan

134‧‧‧ oven door

135‧‧‧First cycle guidance structure

136‧‧‧second loop guiding structure

137‧‧‧Oven operation interface

14‧‧‧Exporting pipeline

141‧‧‧Filter

1411‧‧‧In addition to liquid filter

142‧‧‧Negative pressure pump

143‧‧‧Liquid ejector

144‧‧‧Shock structure

145‧‧‧Exporting pipeline operation interface

15‧‧‧Electric control module

151‧‧‧Electronic control module operation interface

16‧‧‧clean air supply

21,22‧‧‧ Valves

1 is a schematic view of an embodiment of a volatile organic substance analysis chassis of the present invention; 2 is a schematic view of another embodiment of the volatile organic substance analysis chassis of the present invention; FIG. 3 is a schematic view of an embodiment of the granular material filter of the present invention; and FIGS. 4A to 4D are various embodiments of the oven of the present invention. 5A and 5B are schematic views of various embodiments of the derivation pipeline of the present invention; and FIG. 6 is a schematic view of still another embodiment of the volatile organic substance analysis chassis of the present invention;

The following content will be described in conjunction with the drawings, and the technical contents of the present invention will be described by a specific embodiment. Those skilled in the art can easily understand other advantages and effects of the present invention by the contents disclosed in the present specification. This creation can also be implemented or applied by other different embodiments. The details of the present specification can also be modified and changed without departing from the spirit of the present invention. In particular, the proportional relationship and relative position of the various elements in the drawings are for exemplary purposes only and are not representative of actual implementation of the present invention.

Please refer to FIG. 1, which is a front elevational view showing an embodiment of the volatile organic matter analysis cabinet 1 of the present invention. The volatile organic matter analysis chassis 1 is used for analyzing volatile organic substances in a fluid to be analyzed, and the fluid to be analyzed may be, for example, a fluid collected from an industrial exhaust gas discharge environment of a factory, but Limits, fluids to be analyzed collected from other environments may also be applicable. As shown in FIG. 1 , the volatile organic substance analysis chassis 1 of the present invention comprises a chassis body 11 , a sampling pipeline 12 , an oven 13 , a lead-out pipeline 14 and an electronic control module 15 .

The chassis body 11 is provided with a box door 111 and a box internal space 112. When the box door 111 is opened, the box internal space 112 can be exposed. In this embodiment, the box internal space 112 is defined. Different functional areas to accommodate different functional components, wherein the internal space 112 of the cabinet A first area 1121 and a second area 1122 are defined in the lower portion, and a third area 1123 and a fourth area 1124 are defined above the internal space 112 of the box.

The sampling line 12 is used to obtain the fluid to be analyzed. The sampling body 12 is provided with a valve body 121, and the valve body 121 is located in the fourth area 1124 for limiting or allowing the fluid to be analyzed in the sampling line 12. The flow. As shown in FIG. 2, in the present embodiment, the valve bodies 121a, 121b, 121c, 121d are respectively disposed on different passages of the sampling line 12, and can be used to control the flow of the fluid to be analyzed in each passage or other related flow. parameter.

In other embodiments, a sampling device 12 is further provided with a granular material filter 122. Referring to FIG. 2, in the present embodiment, the granular material filter 122 is disposed between the valve 21 and the valve 22. Not limited thereto, the particulate matter filter 122 can be disposed at other different positions of the sampling line 12 depending on actual needs. Referring to FIG. 3, a granular material filter 1221 is provided inside the granular material filter 122 for providing filtering treatment for the granular substances (such as granular suspended matter) present in the fluid to be analyzed to ensure the latter stage. The relevant pipeline is not susceptible to contamination by particulate matter and affects the analytical results. Furthermore, a granular material filter unloading structure 123 is further disposed for the particulate matter filter 122, and the granular material filter unloading structure 123 can be fixedly coupled to the particulate matter filter 122, for example, by snapping, screwing or the like, so that The particulate matter cartridge 1221 is fixedly housed inside the particulate matter filter 122, and when the particulate matter cartridge unloading structure 123 is removed from the particulate matter filter 122, the granular material in the particulate matter filter 122 can be unloaded. Material filter element 1221.

In a preferred embodiment, the volatile organic matter analysis cabinet 1 further has a clean gas provider 16 that provides a positive pressure gas flow (eg, a clean gas flow) to the sampling line 12 to clean the sampling line 12. operation. Referring to FIG. 2, in an embodiment, the air purifier 16 inputs a positive pressure airflow to the cleaning product input port, and the input positive pressure airflow flows backward through the valve 21 into the granular material filter. 122, wherein when the particulate matter cartridge unloading structure 123 is removed from the particulate matter filter 122, the particulate matter in the particulate matter filter unloading structure 123 can be unloaded by the reversely blown positive pressure airflow. The filter element 1221 is blown back, and the particulate matter cartridge 1221 is separated from the sampling line 12, thereby completing the unloading operation.

In another embodiment, the sampling line 12 further has a sampling line heating section 124. Referring to FIG. 2, in an embodiment, the sampling line heating section 124 includes an inlet to the valve 21. The pipeline between the two. Specifically, in order to prevent the fluid to be analyzed from remaining or adsorbing on the wall of the sampling line 12 due to condensation, it is necessary to shorten the overall length of the sampling line 12 and heat it. In view of this, in one embodiment, the sampling line heating section 124 is disposed above the oven 13 and adjacent to the oven 13 to heat the sampling line heating section 124 by the oven 13 to allow sampling The current vapor pressure of the fluid to be analyzed in the line heating section 124 is less than the associated saturated vapor pressure, thereby avoiding condensation problems of the fluid to be analyzed, that is, avoiding condensation of the fluid to be analyzed on the wall of the sampling line 12 during the analysis. . Furthermore, since the sampling line heating section 124 is disposed adjacent to the oven 13, the communication line between the sampling line 12 and the detection line 131 provided in the oven 13 can be shortened, thereby achieving the purpose of shortening the overall length of the tube.

The oven 13 is located in the first area 1121. Referring to FIG. 4A, a detection line 131 is disposed in the oven 13. As described above, the detection line 131 is connected to the sampling line 12 (as shown in FIG. 2). To receive the fluid to be analyzed introduced by the sampling line 12 and to detect the concentration or composition in the fluid to be analyzed. The inside of the oven 13 has a heating environment for heating the detection line 131 inside the oven 13 so that the detection line 131 separates and sequentially outputs the volatile organic substances in the fluid to be analyzed.

Specifically, please refer to FIG. 4B, the heater 13 is internally provided with a heater 132 and a circulation fan 133, wherein the heater and the circulation fan 133 are both disposed under the heating environment, and the heater 132 is used to provide heat. The circulation fan 133 provides a circulating air flow that flows upwardly in a heated environment, thereby achieving the purpose of adjusting the temperature of the heating environment. In addition, the circulation fan 133 is set to add Below the thermal environment, that is, below the chassis body 11, it is advantageous to reduce the thickness of the chassis body 11. Moreover, in an embodiment, a circulating fan dismounting port 117 (shown in FIG. 6) is disposed under the casing body 11, and the circulating fan 133 in the oven 13 can be removed by circulating the fan dismounting port 117.

Since the separation temperature of each volatile organic substance passes through the detection pipeline 131, in general, the force of the static relative to the fluid to be analyzed in the pipeline 131 is detected (the force is affected by the boiling point of the volatile organic substance) The greater the influence of the physical properties such as structure, polarity, etc., the longer the time of the fluid to be analyzed stays in the detection line 131, that is, the later the separation of the detection line 131, and therefore, the control line 131 can be controlled. The current temperature value is used to adjust the time that the fluid to be analyzed passes through the detection pipeline, thereby achieving the purpose of detecting the concentration or composition of the volatile organic substances in the fluid to be analyzed.

In view of this, in an embodiment, the oven 13 is further provided with an oven door 134, a first circulation guiding structure 135, and a second circulation guiding structure 136, wherein the first circulation guiding structure 135 and the second circulation guiding structure 136 can only be set according to actual use requirements. In other embodiments, both can be set at the same time to achieve an optimal temperature control effect. Furthermore, the heating environment inside the oven 13 is opened and closed by opening or closing the oven door 134. As shown in FIG. 4A, a cover body is disposed above the heater 132 and the circulation fan 133. In the embodiment, the first circulation guiding structure 135 is provided by a heat dissipation hole disposed above the cover body. The hole is formed by a circular hole above the cover body shown in FIG. 4A, so that the first circulation guiding structure 135 faces the heating environment inside the oven 13, and when the volatile fluid analysis is performed on the fluid to be analyzed, the oven door is closed. 134 (please refer to FIG. 4C), so that the heating environment inside the oven 13 is in a relatively sealed state. At this time, the first circulation guiding structure 135 is under the action of the circulating fan 133, and the circulating airflow is guided to circulate in the heating environment. (The circulating airflow is indicated by the arrow in Figure 4C) to align the temperatures at different locations in the heated environment and to heat the environment. The temperature may vary depending on a separation temperature of the fluid to be analyzed, wherein the separation temperature is defined by the temperature at which the volatile organic material is separated from the fluid to be analyzed.

The second circulation guiding structure 136 is formed by a heat dissipation hole (the heat dissipation hole, that is, a hole in the letter shape of the front side of the cover body shown in FIG. 4A) provided on the front side of the cover body, so that the second circulation guiding structure 136 faces the oven. The door 134, when the analysis of the volatile organic substance of the fluid to be analyzed ends, can open the oven door 134 to expose the heating environment in the oven 13, and at this time, the second environment guiding structure 136 is guided by the circulation fan 133. The circulating airflow in the heating environment is blown toward the outside of the oven 13 (i.e., as indicated by the arrow in Fig. 4D), thereby achieving air exchange between the inside and outside of the oven 13, thereby bringing out heat in the heating environment inside the oven 13 to accelerate the heating. The temperature at each location in the environment drops. That is, the first circulation guiding structure 135 is used to guide the circulating airflow to circulate in the heating environment, and the second circulation guiding structure 136 is used to guide the circulating airflow away from the heating environment, and is guided by the first circulation guiding structure 135 and the second circulation. Structure 136 is designed to achieve the purpose of controlling the temperature of the heated environment.

The outlet line 14 is located in the second region 1122 of the chassis body 11, wherein the outlet line 14 is in communication with the detection line 131 (as shown in FIG. 2) for directing the fluid to be analyzed from the detection line 131. Referring to FIG. 1 , FIG. 5A , or FIG. 5B , in an embodiment, a filter 141 , a negative pressure pump 142 and a liquid ejector 143 are disposed in the outlet line 14 .

The filter 141 has a liquid removal filter 1411 for filtering out the liquid in which the fluid to be analyzed is condensed, that is, filtering the liquid in the fluid to be analyzed. In one embodiment, the filter 141 is a filter. In addition to the water filter bowl, the liquid filtered from the fluid to be analyzed precipitates in the lower layer of the filter 141 due to the influence of gravity. Furthermore, in an embodiment, a liquid removal filter removal port 116 (shown in FIG. 6) is disposed under the chassis body 11 for removing the liquid removal filter element 1411 and transmitting the filter unit 141. Provided at a rear position of the liquid discharger 143 (as shown in FIG. 5B), the removal operation of the liquid removal filter core 1411 can be performed more conveniently.

The negative pressure pump 142 is in communication with the detection line 131 for providing a negative pressure flow to the detection line 131 to cause the fluid to be analyzed to flow from the detection line 131 to the outlet line 14.

The liquid ejector 143 is in communication with the filter 141 for receiving the liquid condensed by the filter 141 to be discharged to the outside of the casing body 11. In one embodiment, the liquid ejector 143 is a peristaltic pump that prevents backflow of liquid and contaminates the internal tubing of the chassis body 11.

In addition, as shown in FIG. 1 , the outlet pipe 14 is integrally disposed under the casing body 11 , thereby designing a low-drainage purpose, thereby avoiding water leakage and causing damage to other circuits or components in the casing body 11 or Rusty abnormality.

In another embodiment, the outlet line 14 is further provided with a suspension structure 144 (shown in FIG. 5A) made of a shock absorber material, wherein the vacuum pump 142 is disposed in the chassis by the suspension structure 144. In the body 11, the vibration generated by the negative pressure pump 142 during operation is reduced, and the normal operation of other pipelines and components inside the casing body 11 is affected.

The electronic control module 15 is located in the third area 1123 inside the chassis body 11 and is used for controlling the operation of the oven 13 , the outlet line 14 and the sampling line 12 inside the chassis body 11 , as shown in FIG. 1 , the electronic control module The 15 series is disposed above the left side of the chassis body 11 and can be effectively isolated from the detection pipeline 131 disposed on the lower right side of the chassis body 11 (the detection pipeline 131 is disposed inside the oven 13), thereby avoiding the electronic control module. Interference noise in the line of 15 affects the detection and analysis results.

Referring to FIG. 6 , in an embodiment, the chassis body 11 is further provided with an air inlet 113 , an air outlet 114 , and an air flow guiding structure 115 connecting the air inlet 113 and the air outlet 114 , wherein the air inlet 113 is used for introduction. a heat dissipation airflow outside the chassis body 11, and the airflow guiding structure 115 is guided by The heat dissipation airflow introduced by the air inlet 113 is sequentially passed through the second area 1122, the third area 1123, and the fourth area 1124 (in conjunction with FIG. 1) inside the chassis body 11, and the chassis body 11 is led out through the air outlet 114 ( That is, the dotted arrow of FIG. 6 indicates the direction), thereby providing heat dissipation for the functional components provided in the above respective regions. It should be noted that the valve body 121 of the sampling pipeline 12 is also located in the passage through which the heat dissipation airflow flows, thereby avoiding the problem that the valve body 121 is overheated and damaged, thereby facilitating the long-term operation of the valve body 121. jobs.

As shown in FIG. 6 , in other embodiments, the chassis body 11 further has a chassis opening, wherein when the chassis door 111 is opened, the chassis internal space 112 is exposed through the opening of the chassis, and the oven 13 further has An oven operation interface 137, the detection pipeline 131 has a detection pipeline operation interface 1311 (as shown in FIG. 4B), the outlet pipeline 14 has an outlet pipeline operation interface 145, and the sampling pipeline 12 has a sampling pipeline operation interface. 125. The electronic control module 15 has an electronic control module operation interface 151, wherein the oven operation interface 137, the detection pipeline operation interface 1311, the outlet pipeline operation interface 145, and the sampling pipeline operation interface 1311 are all facing the cabinet opening. . Furthermore, the liquid removal filter removal port 116 and the circulation fan removal port 117 are also exposed to the case opening. With the above design mechanism, the operator can open the oven 13 , the detection pipeline 131 , the outlet conduit 14 , and the sampling pipeline 12 inside the casing body 11 through the above operation interfaces when the operator cabinet door 111 is opened. The functional components of the electronic control module 15 and the like perform related operations, and disassemble and disassemble the liquid removal filter 1411 or the circulation fan 133 by removing the liquid filter removal port 116 and the circulation fan dismounting port 117 to facilitate the maintenance personnel. Overhaul operation.

In summary, the creation system separately sets sampling pipelines, ovens, derivation pipelines and electronic control modules in different areas of the volatile organic matter analysis cabinet, in order to analyze the sampling, detection and analysis of exhaust fluids, and exhaust gas treatment. The operations are integrated into the analysis chassis to complete the layout of the functional components for performing the analysis and analysis, thereby saving the space occupied by the chassis and facilitating the chassis on site. The layout is more convenient for the relevant personnel to operate, and the maintenance personnel to subsequently maintain and repair the functional components inside the chassis. In addition, the present invention can also omit the operation and processing of on-site assembly and debugging of the testing machine produced by different manufacturers in the prior art, and can overcome the difficulty in integration of different testing machines.

The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify and change the above embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation should be as listed in the scope of application for this creation.

Claims (10)

The invention relates to a volatile organic substance analysis chassis, which is characterized in that a volatile organic substance is analyzed for a fluid to be analyzed, and the volatile organic substance analysis chassis comprises: a chassis body, which is provided with a box door and a box internal space, When the box door is opened, the inner space of the box is exposed, and the inner space of the box has a first area and a second area, and a third area and a fourth area are above the inner space of the box. a sampling line for obtaining the fluid to be analyzed, the sampling line having a valve body, the valve system being located in the fourth region, and restricting or allowing the fluid to be analyzed to be in the sampling line The flow in the oven; the oven is located in the first area, the oven is provided with a detection pipeline connected to the sampling pipeline to receive the fluid to be analyzed for detecting the fluid to be analyzed a concentration or a component, and the inside of the oven has a heating environment, and the detection pipeline is heated, and the volatile organic substances of the fluid to be analyzed are separated and sequentially output according to the type. The oven is further provided with a heater and a circulation fan, the heater and the circulation fan are disposed under the heating environment, the heater provides heat in the heating environment, and the circulation fan is provided in the heating environment a circulating airflow flowing upward; a lead-out pipeline, the outlet pipeline is located in the second area, and the outlet pipeline is connected to the detection pipeline to derive the fluid to be analyzed from the detection pipeline, the outlet pipeline Providing a filter, a negative pressure pump and a liquid discharge device; the filter has a liquid removal filter, the liquid removal filter filters out the liquid condensed in the fluid to be analyzed; the vacuum pump system Connecting the detection pipeline, providing a negative pressure airflow to flow the fluid to be analyzed, and flowing from the detection pipeline to the outlet pipeline; the liquid ejector is connected to the filter, and receiving the condensed filter Liquid is discharged to the outside of the body of the casing; and an electronic control module is located in the third area, and the electronic control module controls the oven, the outlet line and the sampling line run. The volatile organic substance analysis chassis according to the first aspect of the invention, wherein the chassis body is further provided with an air inlet, an air outlet and a wind flow guiding structure, wherein the air inlet is introduced into a heat dissipation airflow outside the chassis body. The airflow guiding structure guides the heat dissipation airflow, and sequentially passes through the second, third, and fourth regions, and the chassis body is led out by the air outlet. The volatile organic substance analysis cabinet according to claim 1, wherein the sampling line is provided with a granular material filter and a granular material filter unloading structure, wherein the granular material filter has a grain a particulate filter element for providing a filtration treatment of the particulate matter for the fluid to be analyzed, the particulate matter cartridge unloading structure unloading the particulate matter cartridge from the sampling conduit. The volatile organic matter analysis cabinet according to claim 3, further comprising a clean air supply device, which provides a positive pressure air flow to the sampling pipeline to clean the sampling pipeline or force the unloading The particulate matter filter exits the sampling line. The volatile organic matter analysis chassis of claim 1, wherein the oven is further provided with an oven door and a first circulation guiding structure, the oven door opening and closing the heating environment, the first cycle The guiding structure is facing the heating environment, and when the volatile organic substance is analyzed for the fluid to be analyzed, the oven door closes the heating environment, and the first circulation guiding structure guides the circulating airflow to circulate in the heating environment And the temperature of each position of the heating environment tends to be uniform, and the temperature of the heating environment is further changed according to a separation temperature of the fluid to be analyzed, the separation temperature is the separation of the volatile organic substance from the fluid to be analyzed. And the temperature is defined. The volatile organic matter analysis case according to claim 1, wherein the oven is further provided with an oven door and a second circulation guiding structure, the oven door opening and closing the heating environment, the second cycle The guiding structure is facing the oven door, the oven door opening the heating environment when the analysis of the volatile organic substance of the fluid to be analyzed ends, the second circulation guiding structure guiding the circulating airflow away from the heating environment And bringing out the heat of the heating environment to accelerate the temperature drop at each location of the heating environment. The volatile organic substance analysis chassis of claim 1, wherein the outlet pipe is further provided with a suspension structure, and the negative pressure pump is disposed on the casing body by the suspension structure. The volatile organic substance analysis case according to claim 1, wherein the system has a box opening, and the box door is opened to expose the inner space of the box by the opening of the box. The oven has an oven operation interface, the detection pipeline has a detection pipeline operation interface, the outlet pipeline has an export pipeline operation interface, and the sampling pipeline has a sampling pipeline operation interface, the electricity pipeline The control module has an electronic control module operation interface, and the oven operation interface, the detection pipeline operation interface, the export pipeline operation interface and the sampling pipeline operation interface are opening to the cabinet. The volatile organic substance analysis chassis according to claim 8 , wherein the liquid body filter removal port and a circulation fan dismounting port are disposed under the main body of the casing, and the liquid removal filter removal port is used. The venting fan detaching port is configured to remove the circulating fan, and the liquid removing detaching port and the circulating fan detaching port are exposed to the box opening. The volatile organic matter analysis chassis of claim 1, wherein the sampling line further has a sampling line heating section, wherein the sampling section heating section is heated to allow the sampling line heating zone The current vapor pressure of the fluid to be analyzed in the section is less than the associated saturated vapor pressure, and the sampling section heating section is adjacent to the upper portion of the oven, and the communication with the detection pipeline is shortened.