CN212410250U - Pretreatment device for fixed pollution source analysis system - Google Patents

Abstract

The utility model provides a fixed pollution sources analytic system preprocessing device, including insulation can, a plurality of glan heads, wear the board to connect, heater, pneumatic switch valve, filter and pipeline, inside wear board joint, heater, pneumatic switch valve, filter and pipeline located the insulation can, the insulation can was used for preprocessing device's waterproof dustproof and heat preservation, and wear the board to connect to fix on the insulation can with inside gas circuit, and pneumatic switch valve is used for controlling the break-make of appearance gas, and the filter is arranged in filtering thoughtlessly impurity in the appearance gas, the utility model discloses an each part is integrated in an insulation can, and each preprocessing part all is closely wrapped up by the heater, has guaranteed whole heating and heating efficiency, and this device and former appearance gas sampling device, the connection of the appearance gas analysis appearance of back level all connect through integration heat pipe line.

Description

Pretreatment device for fixed pollution source analysis system

Technical Field

The utility model relates to a fixed pollution sources detection and analysis technical field, concretely a fixed pollution sources analytic system preprocessing device.

Background

The exhaust gas from industrial enterprises is usually water-containing, dust-containing and high in temperature, and sampling, transmission and treatment of sample gas are critical. The treatment of sample gases generally employs a sampling probe with a filter to prevent clogging, the filter being generally maintained by blowback or disassembly cleaning. The sample gas is roughly filtered, passes through a gas conveying pipeline with heat tracing, is finally filtered by a precision filter after flow regulation, and is conveyed to an analysis instrument. The whole process of high-temperature heat tracing is needed in the process of transmitting the sample gas to the analyzer, so that the sample gas is ensured not to be adsorbed and condensed.

According to the technical requirements and detection methods of a fixed pollution source waste gas non-methane total hydrocarbon continuous monitoring system approved by the ministry of ecological environment of the people's republic of China, HJ1013-2018 is a national environmental protection standard (hereinafter referred to as the standard). The pretreatment equipment and parts thereof are convenient to clean and replace, and materials which do not adsorb and react with pollutants to be detected are adopted. To prevent the particles from contaminating the analyzer, a fine filter can be provided before the gas sample enters the analyzer, and the fine filter should be capable of filtering at least (0.5-2) μm particles.

The existing pretreatment device is generally integrated in an analytical instrument cabinet, the layout is dispersed, the heat tracing effect is poor, sample gas is condensed and adsorbed in a part, and the part and a pipeline are blocked after condensed water is mixed with dust.

Therefore, the problems of the prior art need to be solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the embodiment of the utility model provides a fixed pollution sources analytic system preprocessing device, including insulation can, a plurality of glan head, wear plate joint, heater, pneumatic switch valve, filter and pipeline are located inside the insulation can, the insulation can is used for preprocessing device's waterproof dustproof and heat preservation, wear plate joint is used for fixing on the insulation can inside gas circuit connection, pneumatic switch valve is used for controlling the break-make of appearance gas, the filter is arranged in filtering mixed impurity in the appearance gas, the glan head is used for fixed pipeline and pipeline.

Further, the pneumatic switch valve with be equipped with the heating needle valve between the filter, the heating needle valve is used for adjusting the flow of appearance gas.

Furthermore, the side surface of the heat preservation box is connected with the sample gas collecting device through a pipeline input end, the other position of the side surface of the heat preservation box is connected with the sample gas analyzer through a pipeline output end, and a standard gas inlet is further formed in the other position of the side surface of the heat preservation box.

Further, the sample gas analyzer is connected with the pneumatic switch valve, and the sample gas analyzer is used for controlling the opening or closing of the pneumatic switch valve.

Furthermore, a phenolic plate heat insulation layer is arranged in the inner layer of the heat insulation box.

Furthermore, the filter contains a stainless steel sintered filter element, and the stainless steel sintered filter element can be detached and cleaned.

Furthermore, a detachable heat preservation cover is arranged on the side face of the heat preservation box.

Furthermore, the heater is a plurality of resistance heating blocks used for raising the temperature in the box, and the heater is uniformly distributed in the internal gas path.

The utility model has the advantages that:

(1) the utility model integrates all the parts in an insulation can, each pretreatment part is tightly wrapped by the heater, the whole heating and heating efficiency is ensured, the device is connected with a front-stage sample gas sampling device and a rear-stage sample gas analyzer through an integrated heat tracing pipeline, the integrated heat tracing pipeline directly penetrates into the oven through a glan head on the insulation can to be tightly attached to a heating block, and the heat tracing reliability of the connection with the front-stage and rear-stage devices is also solved;

(2) the utility model discloses still reserved an interface that lets in standard gas to the insulation can, made the analysis appearance calibration compare more convenient.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which 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 serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a pretreatment device of a stationary pollution source analysis system in an embodiment of the present invention.

Fig. 2 is a schematic structural view of an incubator according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of opening the thermal cover in the embodiment of the present invention.

Reference numerals: 10-insulation box, 11-standard gas inlet, 12-insulation cover, 20-gram head, 30-plate connector, 40-heater, 50-pneumatic switch valve, 60-filter, 70-pipeline, 80-heating needle valve, 90-sample gas collecting device, 100-sample gas analyzer and 110-air pump.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a pretreatment device of a fixed pollution source analysis system in an embodiment of the present invention, the pretreatment device of the fixed pollution source analysis system includes an insulation box 10, a plurality of glan heads 20, a plate penetrating connector 30, a heater 40, a pneumatic switch valve 50, a filter 60, and a pipeline 70, the plate penetrating connector 30, the heater 40, the pneumatic switch valve 50, the filter 60, and the pipeline 70 are disposed inside the insulation box 10, the insulation box 10 is used for water proofing, dust proofing, and heat preservation of the pretreatment device, the plate penetrating connector 30 is used for fixing an internal gas circuit connection on the insulation box 10, the pneumatic switch valve 50 is used for controlling on/off of a sample gas, the filter 60 is used for filtering impurities mixed in the sample gas, and the glan head 20 is used for fixing the pipeline 70 and a pipeline 70.

In some preferred embodiments, a heating needle valve 80 is disposed between the pneumatic switch valve 50 and the filter 60, and the heating needle valve 80 is used for adjusting the flow rate of the sample gas.

In some preferred embodiments, the side of the thermal insulation box 10 is connected to the sample gas collecting device 90 through the input end of the pipeline 70, another position on the side of the thermal insulation box 10 is connected to the sample gas analyzer 100 through the output end of the pipeline 70, the other end of the sample gas analyzer 100 is connected to the air pump 110, and another position on the side of the thermal insulation box 10 is further provided with the standard gas inlet 11.

In some preferred embodiments, the sample gas analyzer 100 is connected to the pneumatic on-off valve 50, and the sample gas analyzer 100 is used for controlling the opening or closing of the pneumatic on-off valve 50.

In some preferred embodiments, the inner layer of the incubator 10 is provided with a phenolic plate insulating layer.

In some preferred embodiments, the filter 60 contains a stainless steel sintered cartridge that can be removed for cleaning.

In some preferred embodiments, the side of the incubator 10 is provided with a detachable cover 12.

In some preferred embodiments, the heater 40 is a plurality of resistance heating blocks for raising the temperature in the box, and the heater 40 is uniformly distributed in the internal air path.

The utility model discloses a theory of operation is:

the heater 40 is firstly installed on the installation plate in the incubator 10, then the pipe valve is installed according to the gas path flow chart, the heater 40 is of an upper clamping block structure and a lower clamping block structure, and finally the upper clamping block and the lower clamping block are connected through screws, and the pretreatment component is clamped between the heaters 40. The upper clamping block contains an electric heating rod, and the lower clamping block contains a PT100 platinum resistor. The temperature is accurately controlled to 140 ℃ by an external temperature control device in consideration of heat loss in the conduction process. So that the water in the sample gas is always in a gaseous state. The sample gas is sent to the pretreatment device through a gas conveying pipeline with heat tracing, and is filtered and sent to the sample gas analyzer 100 through the precision filter 60 after the flow rate of the sample gas is adjusted by the heating needle valve 80. The pneumatic switch valve 50 can control the on-off of the sample gas through a pneumatic signal controlled by an analyzer or a PLC.

A phenolic plate heat-insulating layer with the thickness of 20mm is pasted in the heat-insulating box 10, so that heat loss can be reduced. All power and signal connections are integrated in a terminal box 13 outside the thermal box 10. The insulation can 10 is provided with a glan head 20 with proper size, so that the integrated heat tracing pipeline directly extends into the insulation can 10 and is directly connected to the pretreatment device, and no cold spot exists between the pretreatment device and the heat tracing pipeline.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "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, schematic representations of the above terms 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.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims (8)

1. A pretreatment device of a fixed pollution source analysis system is characterized in that: including insulation can (10), a plurality of glan head (20), wear board to connect (30), heater (40), pneumatic switch valve (50), filter (60) and pipeline (70) and locate insulation can (10) are inside, insulation can (10) are used for preprocessing device's waterproof dustproof and heat preservation, wear board to connect (30) and fix on insulation can (10) with inside gas circuit connection, pneumatic switch valve (50) are used for controlling the break-make of sample gas, filter (60) are arranged in filtering the impurity that thoughtlessly has in the sample gas, glan head (20) are used for fixed pipeline (70) and pipeline.

2. The stationary source analysis system pretreatment device of claim 1, wherein: pneumatic switch valve (50) with be equipped with heating needle valve (80) between filter (60), heating needle valve (80) are used for adjusting the flow of appearance gas.

3. The stationary source analysis system pretreatment device of claim 2, wherein: the side surface of the heat preservation box (10) is connected with a sample gas collecting device (90) through an input end of a pipeline (70), the other position of the side surface of the heat preservation box (10) is connected with a sample gas analyzer (100) through an output end of the pipeline (70), and a standard gas access opening (11) is further formed in the other position of the side surface of the heat preservation box (10).

4. The stationary source analysis system pretreatment device of claim 3, wherein: the sample gas analyzer (100) is connected with the pneumatic switch valve (50), and the sample gas analyzer (100) is used for controlling the opening or closing of the pneumatic switch valve (50).

5. The stationary source analysis system pretreatment device of claim 1, wherein: and a phenolic plate heat-insulating layer is arranged on the inner layer of the heat-insulating box (10).

6. The stationary source analysis system pretreatment device of claim 1, wherein: the filter (60) is internally provided with a stainless steel sintered filter element, and the stainless steel sintered filter element can be detached and cleaned.

7. The stationary source analysis system pretreatment device of claim 1, wherein: and a detachable heat preservation cover (12) is arranged on the side surface of the heat preservation box (10).

8. The stationary source analysis system pretreatment device of claim 1, wherein: the heater (40) is a plurality of resistance heating blocks used for raising the temperature in the box, and the heater (40) is uniformly distributed in the internal air path.

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