A gas analyzer pressure dynamic control pretreatment system
Patent Information
- Application Number
- CN202522225420.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-10-21
AI Technical Summary
[0002]工业在线气体分析仪配备预处理系统，核心目的是去除样气中的干扰物质（如粉尘、水分）以及稳压控流，但是现有预处理系统在使用过程中存在介质流动磨损减压阀导致压力线性变化，使得输出的气体介质压力流量不稳定，影响分析数据的准确性和设备的长期稳定运行
[0013]与现有技术相比，本实用新型的优点和积极效果在于：
Smart Images
Figure CN224708389U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas analyzer technology, and in particular to a gas analyzer pressure dynamic control pretreatment system. Background Technology
[0002] Industrial online gas analyzers are equipped with a pretreatment system, the core purpose of which is to remove interfering substances (such as dust and moisture) from the sample gas and to stabilize pressure and control flow. However, existing pretreatment systems suffer from pressure changes due to wear of the pressure reducing valve caused by medium flow, resulting in unstable pressure and flow of the output gas medium, which affects the accuracy of analytical data and the long-term stable operation of the equipment. Utility Model Content
[0003] The main purpose of this invention is to solve the aforementioned technical problems to a certain extent by proposing a gas analyzer pressure dynamic control pretreatment system that can output gas medium samples with stable pressure and flow rate, ensuring the accuracy of analytical data and the long-term stable operation of the equipment.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a gas analyzer pressure dynamic control pretreatment system, comprising a gas-liquid separator, an impurity filter, a liquid filter, and a pressure control component. The inlet of the gas-liquid separator is connected to a gas input pipeline, the outlet of the gas-liquid separator is connected to the inlet pipeline of the impurity filter, and the outlet of the impurity filter is connected to the inlet pipeline of the liquid filter. The pressure control component includes a pressure reducing valve, a pressure boosting valve, a pressure relief valve, and a controller. The outlet of the liquid filter is connected to the inlet pipeline of the pressure reducing valve. The pressure boosting valve and the pressure relief valve are respectively located on the pipeline connecting the outlet of the pressure reducing valve to the gas analyzer. The controller is electrically connected to the pressure boosting valve and the pressure relief valve. The drain ports of the gas-liquid separator, the impurity filter, and the liquid filter are connected through a drain pipe.
[0005] In some embodiments, the impurity filter includes a first impurity filter layer, a second impurity filter layer, and a third impurity filter layer arranged sequentially, wherein the first impurity filter layer is in communication with the gas-liquid separator, and the third impurity filter layer is in communication with the liquid filter.
[0006] In some embodiments, the pore sizes of the first impurity filter layer, the second impurity filter layer, and the third impurity filter layer decrease sequentially.
[0007] In some embodiments, the pore size of the first impurity filter layer is 5-10 μm, the pore size of the second impurity filter layer is 1-5 μm, and the pore size of the third impurity filter layer is 0.1-1 μm.
[0008] In some embodiments, a first check valve, a second check valve, and a third check valve are respectively provided on the pipes connecting the first impurity filter layer, the second impurity filter layer, and the third impurity filter layer to the sewage pipe.
[0009] In some embodiments, a fourth one-way valve is provided on the pipe connecting the drain outlet of the gas-liquid separator and the drain pipe.
[0010] In some embodiments, a fifth check valve is provided on the pipe connecting the drain outlet of the liquid filter to the drain pipe.
[0011] In some embodiments, a sixth check valve is provided on the pipe connecting the pressure booster valve and the sewage pipe.
[0012] In some embodiments, a pressure sensor is also provided on the pipe connecting the outlet of the pressure reducing valve to the gas analyzer.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] This invention introduces a gaseous medium containing impurities into a pretreatment system under positive pressure. First, a gas-liquid separator removes liquid impurities from the medium. Then, an impurity filter removes solid impurities. Next, a liquid filter further removes residual liquid. Finally, a pressure control component stabilizes the pressure and controls the flow rate, resulting in a stable output pressure and flow rate for the gaseous medium sample. This ensures the accuracy of analytical data and the long-term stable operation of the equipment. Attached Figure Description
[0015] Figure 1 This is a structural diagram of the pressure dynamic control pretreatment system of the gas analyzer of this utility model.
[0016] Legend: 1-Gas-liquid separator; 2-Impurity filter; 201-First impurity filter layer; 202-Second impurity filter layer; 203-Third impurity filter layer; 3-Liquid filter; 4-Pressure control assembly; 401-Pressure reducing valve; 402-Pressure boosting valve; 403-Pressure relief valve; 404-Controller; 405-Pressure sensor; 5-First check valve; 6-Second check valve; 7-Third check valve; 8-Fourth check valve; 9-Fifth check valve; 10-Sixth check valve. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0019] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0020] like Figure 1 As shown, this utility model provides a gas analyzer pressure dynamic control pretreatment system, including a gas-liquid separator 1, an impurity filter 2, a liquid filter 3, and a pressure control component 4. The inlet of the gas-liquid separator 1 is connected to a gas input pipe, the outlet of the gas-liquid separator 1 is connected to the inlet pipe of the impurity filter 2, and the outlet of the impurity filter 2 is connected to the inlet pipe of the liquid filter 3.
[0021] During operation, the gaseous medium containing impurities is introduced into the pretreatment system under positive pressure through the inlet pipe. First, the liquid impurities in the medium are removed by the gas-liquid separator 1, then the fixed impurities are filtered out by the impurity filter 2, and then the residual liquid is further filtered out by the liquid filter 3, thereby ensuring that the gaseous medium sample entering the analyzer meets the detection requirements.
[0022] In this application, the impurity filter 2 includes a first impurity filter layer 201, a second impurity filter layer 202 and a third impurity filter layer 203 arranged sequentially. The first impurity filter layer 201 is connected to the gas-liquid separator 1 and the third impurity filter layer 203 is connected to the liquid filter 3.
[0023] The filtration pore sizes of the first impurity filter layer 201, the second impurity filter layer 202, and the third impurity filter layer 203 decrease sequentially. Specifically, the filtration pore size of the first impurity filter layer 201 is 5 μm, the filtration pore size of the second impurity filter layer 202 is 1 μm, and the filtration pore size of the third impurity filter layer 203 is 0.1 μm. The three-layer filtration structure ensures the filtration effect, while the layered structure can distribute the filtration pressure and prevent clogging.
[0024] Furthermore, the pressure regulating component 4 includes a pressure reducing valve 401, a pressure boosting valve 402, a pressure relief valve 403, and a controller 404. The outlet of the liquid filter 3 is connected to the inlet pipe of the pressure reducing valve 401. The pressure boosting valve 402 and the pressure relief valve 403 are respectively located on the pipe connecting the outlet of the pressure reducing valve 401 to the gas analyzer. The controller 404 is electrically connected to the pressure boosting valve 402 and the pressure relief valve 403 respectively.
[0025] During operation, the gas medium, after being filtered by the gas-liquid separator 1, impurity filter 2, and liquid filter 3, passes through the pressure regulating component 4 to stabilize the pressure and control the flow rate. A pressure sensor 405 is also installed on the pipeline connecting the outlet of the pressure reducing valve 401 to the gas analyzer. The pressure sensor 405 is electrically connected to the controller 404. The pressure sensor 405 monitors the output pressure of the gas medium in real time, and the controller 404 receives the signal from the pressure sensor 405 and quickly controls the operation of the booster valve 402 and the pressure relief valve 403. When the pressure of the pressure sensor 405 is less than the set value, the booster valve 402 is controlled to boost the pressure to match the set value. When the pressure of the pressure sensor 405 is greater than the set value, the pressure relief valve 403 is controlled to relieve the pressure to match the set value. This allows a gas medium sample with a stable pressure and flow rate to enter the gas analyzer, ensuring the accuracy of the analysis data and the long-term stable operation of the equipment.
[0026] In another embodiment, the drain ports of the gas-liquid separator 1, the first impurity filter layer 201, the second impurity filter layer 202, the third impurity filter layer 203, and the liquid filter 3 are connected by a drain pipe. In order to prevent backflow and ensure unidirectional flow, a first one-way valve 5, a second one-way valve 6, and a third one-way valve 7 are respectively provided on the pipes connecting the first impurity filter layer 201, the second impurity filter layer 202, and the third impurity filter layer 203 to the drain pipe. A fourth one-way valve 8 is provided on the pipe connecting the drain port of the gas-liquid separator 1 to the drain pipe. A fifth one-way valve 9 is provided on the pipe connecting the drain port of the liquid filter 3 to the drain pipe. A sixth one-way valve 10 is provided on the pipe connecting the pressure booster valve 402 to the drain pipe.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A pretreatment system for dynamic pressure control of a gas analyzer, characterized in that, It includes a gas-liquid separator, an impurity filter, a liquid filter, and a pressure regulating component. The inlet of the gas-liquid separator is connected to a gas input pipe, the outlet of the gas-liquid separator is connected to the inlet pipe of the impurity filter, and the outlet of the impurity filter is connected to the inlet pipe of the liquid filter. The pressure regulating component includes a pressure reducing valve, a pressure boosting valve, a pressure relief valve, and a controller. The outlet of the liquid filter is connected to the inlet pipe of the pressure reducing valve. The pressure boosting valve and the pressure relief valve are respectively located on the pipe connecting the outlet of the pressure reducing valve to the gas analyzer. The controller is electrically connected to the pressure boosting valve and the pressure relief valve respectively. The drain ports of the gas-liquid separator, impurity filter, and liquid filter are connected by a drain pipe.
2. The gas analyzer pressure dynamic control pretreatment system according to claim 1, characterized in that, The impurity filter includes a first impurity filter layer, a second impurity filter layer, and a third impurity filter layer arranged sequentially. The first impurity filter layer is connected to the gas-liquid separator, and the third impurity filter layer is connected to the liquid filter.
3. The gas analyzer pressure dynamic control pretreatment system according to claim 2, characterized in that, The pore sizes of the first impurity filter layer, the second impurity filter layer, and the third impurity filter layer decrease sequentially.
4. The gas analyzer pressure dynamic control pretreatment system according to claim 3, characterized in that, The pore size of the first impurity filter layer is 5-10 μm, the pore size of the second impurity filter layer is 1-5 μm, and the pore size of the third impurity filter layer is 0.1-1 μm.
5. The gas analyzer pressure dynamic control pretreatment system according to claim 2, characterized in that, The first impurity filter layer, the second impurity filter layer, and the third impurity filter layer are respectively equipped with a first one-way valve, a second one-way valve, and a third one-way valve on the pipes connecting them to the sewage pipe.
6. The gas analyzer pressure dynamic control pretreatment system according to claim 1, characterized in that, A fourth check valve is installed on the pipe connecting the drain outlet of the gas-liquid separator to the drain pipe.
7. The gas analyzer pressure dynamic control pretreatment system according to claim 1, characterized in that, A fifth check valve is installed on the pipe connecting the drain outlet of the liquid filter to the drain pipe.
8. The gas analyzer pressure dynamic control pretreatment system according to claim 1, characterized in that, A sixth check valve is installed on the pipe connecting the pressure booster valve and the sewage pipe.
9. The gas analyzer pressure dynamic control pretreatment system according to claim 1, characterized in that, A pressure sensor is also installed on the pipe connecting the outlet of the pressure reducing valve to the gas analyzer.