CN219424072U - Refrigerating and dehumidifying device of analysis system - Google Patents
Refrigerating and dehumidifying device of analysis system Download PDFInfo
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- CN219424072U CN219424072U CN202320526440.5U CN202320526440U CN219424072U CN 219424072 U CN219424072 U CN 219424072U CN 202320526440 U CN202320526440 U CN 202320526440U CN 219424072 U CN219424072 U CN 219424072U
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- refrigerating
- vacuum pump
- primary filter
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Abstract
The utility model discloses a refrigerating and dehumidifying device of an analysis system, which comprises a primary filter, a refrigerator, a scrubber, a vacuum pump and an analyzer, wherein the primary filter sequentially passes through the refrigerator, the scrubber and the vacuum pump through pipelines and is connected with the analyzer, and a flowmeter is arranged on an inlet pipeline of the analyzer. The utility model ensures the long-term stable operation of the online analyzer, prevents the water from being damaged inside the analyzer, improves the measurement accuracy, reduces the system interference and the like.
Description
Technical Field
The utility model relates to the technical field of analysis systems, in particular to a refrigeration and dehumidification device of an analysis system.
Background
The pretreatment unit of the analysis system is used for removing dust and corrosive impurities in the sample gas, removing moisture in the sample gas, and sending the treated clean and dried sample gas to the analysis instrument. When the medium of the analysis sampling point is positioned at a high temperature, the existing analysis pretreatment system and control method are characterized in that the high-temperature sampling gas is naturally cooled after passing through a section of sampling pipeline, the control response is slow, stable control is difficult to achieve under high precision, the analysis control precision is influenced, and the product quality is further influenced.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art, and provides a refrigeration and dehumidification device of an analysis system, which ensures long-term stable operation of an online analyzer, prevents water inflow damage inside the analysis instrument, improves measurement accuracy, reduces system interference and the like.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the refrigerating and dehumidifying device for analysis system includes primary filter, refrigerator, washer, vacuum pump and analyzer, and the primary filter is connected via pipeline to the analyzer via the refrigerator, washer and vacuum pump successively, and the analyzer has flowmeter in the inlet pipeline.
According to the technical scheme, the refrigerator is a semiconductor refrigerator.
According to the technical scheme, the refrigerator comprises a refrigerating part and a dehumidifying part, the temperature of the heat exchanger part is detected by adopting PT100 type thermal resistance, the refrigerator adopts a switching power supply to provide direct current power for a refrigerating sheet and a control circuit of the refrigerating part, and the dehumidifying part of the refrigerator adopts a fan to perform forced air cooling and heat dissipation.
According to the technical scheme, the inlet end of the primary filter is connected with the sampling tube.
According to the technical scheme, the first converter is arranged on the connecting pipeline between the primary filter and the refrigerator, the heater is arranged on the connecting pipeline between the primary filter and the first converter, and the second converter is arranged on the connecting pipeline between the vacuum pump and the analyzer.
According to the technical scheme, a fine filter is arranged on a connecting pipeline between the scrubber and the vacuum pump.
According to the technical scheme, a throttle valve is arranged on a connecting pipeline between the vacuum pump and the analyzer.
According to the technical scheme, the switching valve is arranged on the connecting pipeline between the first converter and the refrigerator and/or the connecting pipeline between the second converter and the analyzer.
According to the technical scheme, the refrigerator and the analyzer are provided with the discharge ports.
According to the technical scheme, the refrigerating and dehumidifying device of the analysis system further comprises an analysis cabinet, and the primary filter, the refrigerator, the scrubber, the vacuum pump and the analyzer are all arranged in the analysis cabinet.
The utility model has the following beneficial effects:
1. the utility model removes moisture in the sample gas through refrigeration and dehumidification of the refrigerator, ensures long-term stable operation of the online analyzer, prevents water from being damaged inside the analysis instrument, and compared with a general analysis pretreatment system, directly refrigerates and removes moisture in the gas, thereby improving measurement accuracy, reducing system interference and the like.
2. The influence of moisture on an analysis result can be effectively removed by adopting semiconductor refrigeration and dehumidification, and the refrigerator is an important component in the sample gas treatment of an analyzer; the inlet dew point of the pretreatment analysis main meter of the traditional analysis system is high, and the refrigerator optimizes the pretreatment process, and the process is advanced, reliable and anti-interference; the whole set of analysis systems is integrated, the whole set of debugging is completed before the analysis cabinet leaves the factory, the on-site construction does not increase any workload, the implementation of the transformation project is convenient, the engineering quantity is small, the newly-built project can be directly designed according to the method, the investment is small, and the economic benefit is good.
Drawings
FIG. 1 is a schematic diagram of a refrigeration and dehumidification device of an analysis system in an embodiment of the present utility model;
in the figure, an A-sampling tube, a B-pipeline system, a C-refrigerator, a D-standard gas inlet, an E-sample gas inlet, an F1-primary filter, an F2-fine filter, an H-heater, a Ka-first converter, a Kb-second converter, a Vc-switching valve, a Vn-throttle valve, an M-flowmeter, a P-vacuum pump, an S-scrubber and an N-analysis cabinet.
Detailed Description
The utility model will now be described in detail with reference to the drawings and examples.
Referring to fig. 1, a refrigerating and dehumidifying apparatus of an analysis system according to an embodiment of the present utility model includes a primary filter F1, a refrigerator C, a scrubber S, a vacuum pump P, and an analyzer, wherein the primary filter F1 is connected to the analyzer through a pipeline sequentially passing through the refrigerator C, the scrubber S, and the vacuum pump P, and a flowmeter M is disposed on an inlet pipeline of the analyzer.
Further, the refrigerator C is a semiconductor refrigerator; the refrigerating part adopts a semiconductor refrigerating sheet for refrigeration.
Further, the refrigerator C comprises a refrigerating part and a dehumidifying part, the refrigerator adopts PT100 type thermal resistance to detect the temperature of the heat exchanger part, the refrigerator adopts a switching power supply to provide direct current power for a refrigerating sheet and a control circuit of the refrigerating part, and the dehumidifying part of the refrigerator adopts a fan to perform forced air cooling and heat dissipation. And adopts a temperature control mode of PID control.
Further, the inlet end of the primary filter F1 is connected to the sampling tube A.
Further, a first converter Ka is arranged on a connecting pipeline between the primary filter F1 and the refrigerator C, the primary filter F1 is connected with the first converter Ka through a pipeline system B, a heater H is arranged on the pipeline system B, a second converter Kb is arranged on a connecting pipeline between the vacuum pump P and the flowmeter M of the analyzer, the converter is a device for converting nitrogen oxides into NO under the action of a catalyst at high temperature of NO2, the device is mainly used for controlling the reaction temperature and the activity of the catalyst, only NO in flue gas is measured, the conversion measurement needs to be performed after converting the NO2 in the flue gas into NO through the nitrogen oxide converter before the measurement, and the converted measurement result can be represented as the concentration of the discharged NOx (calculated as NO 2).
Further, the inlet end of the first converter Ka is a sample gas inlet E, and the outlet end of the first converter Ka is a standard gas inlet D.
Further, a fine filter F2 is provided on a connection pipe between the scrubber S and the vacuum pump P.
Further, a throttle valve Vn is provided in a connection pipe between the vacuum pump P and the analyzer.
Further, a switching valve Vc is arranged on a connecting pipeline between the first converter Ka and the refrigerator C and/or a connecting pipeline between the second converter Kb and the analyzer, and the switching valve is used for switching the standard gas and the sample gas, so that the calibration is needed.
Further, the refrigerator C and the analyzer are provided with a discharge port.
Further, the refrigerating and dehumidifying device of the analysis system further comprises an analysis cabinet N, wherein the primary filter F1, the refrigerator C, the washer S, the vacuum pump P and the analyzer are all arranged in the analysis cabinet N.
In conclusion, the method skillfully combines the advantages of semiconductor refrigeration, dehumidification, pretreatment and the like with the advantages of the analysis instrument, and solves the problems of high failure rate and easy interference of gas component content measurement equipment in engineering. The refrigeration and dehumidification method has the advantages of low cost, improvement of the normal operation rate of measurement, reduction of the equipment failure rate, prolongation of the service life of the analysis main analyzer, reduction of spare part cost, better economical efficiency, and most important point, avoidance of shutdown, purging, even replacement of pipelines and expensive analysis instrument replacement, and great improvement of safety and reliability. Therefore, the semiconductor dehumidification method of the analysis system has better popularization prospect and higher practicability.
The foregoing is merely illustrative of the present utility model and is not intended to limit the scope of the utility model, which is defined by the claims and their equivalents.
Claims (10)
1. The refrigerating and dehumidifying device of the analysis system is characterized by comprising a primary filter, a refrigerator, a scrubber, a vacuum pump and an analyzer, wherein the primary filter sequentially passes through the refrigerator, the scrubber and the vacuum pump through a pipeline and is connected with the analyzer, and a flowmeter is arranged on an inlet pipeline of the analyzer.
2. The apparatus of claim 1, wherein the refrigerator is a semiconductor refrigerator.
3. The apparatus according to claim 1, wherein the refrigerator includes a refrigerating portion and a dehumidifying portion, the refrigerating portion is cooled by a semiconductor refrigerating sheet, and the dehumidifying portion is cooled by forced air cooling by a fan.
4. The apparatus of claim 1, wherein the primary filter has an inlet end connected to the sampling tube.
5. The refrigerating and dehumidifying apparatus of an analysis system as claimed in claim 1, wherein a first converter is provided on a connection pipe between the primary filter and the refrigerator, a heater is provided on a connection pipe between the primary filter and the first converter, and a second converter is provided on a connection pipe between the vacuum pump and the analyzer.
6. The refrigerating and dehumidifying apparatus of an analysis system as claimed in claim 1, wherein a fine filter is provided on a connection pipe between the scrubber and the vacuum pump.
7. The refrigerating and dehumidifying apparatus of an analysis system as claimed in claim 1, wherein a throttle valve is provided on a connecting pipe between the vacuum pump and the analyzer.
8. A refrigerating and dehumidifying apparatus for an analysis system as claimed in claim 5, wherein a switching valve is provided on a connection pipe between the first converter and the refrigerator and/or on a connection pipe between the second converter and the analyzer.
9. The apparatus of claim 1, wherein the refrigerator and the analyzer are provided with a discharge port.
10. The apparatus according to claim 1, wherein the apparatus further comprises an analysis cabinet, and the primary filter, the refrigerator, the scrubber, the vacuum pump, and the analyzer are disposed in the analysis cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320526440.5U CN219424072U (en) | 2023-03-17 | 2023-03-17 | Refrigerating and dehumidifying device of analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320526440.5U CN219424072U (en) | 2023-03-17 | 2023-03-17 | Refrigerating and dehumidifying device of analysis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219424072U true CN219424072U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320526440.5U Active CN219424072U (en) | 2023-03-17 | 2023-03-17 | Refrigerating and dehumidifying device of analysis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219424072U (en) |
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2023
- 2023-03-17 CN CN202320526440.5U patent/CN219424072U/en active Active
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