On-line analyzer sampling system

Abstract

The utility model discloses a sampling system of an online analyzer. The sampling system comprises a conveying pipeline, a sample shut-off valve, a first pneumatic three-way valve, a coalescence filter, a first needle valve, a first ball valve, a first flowmeter, a filter, a first power module, a second pneumatic three-way valve and a second power module, the output end of the conveying pipeline is connected with the input end of an external analyzer and is used for conveying a sample; the sample shut-off valve, the first pneumatic three-way valve, the coalescence filter, the first needle valve, the first ball valve, the first flowmeter and the filter are sequentially communicated with the conveying pipeline; the first pneumatic three-way valve is connected with an external nitrogen header pipe; the first power module is connected with the coalescence filter, an external nitrogen header pipe and an external return header pipe; and the second pneumatic three-way valve is connected with the output end of an external analyzer and an emptying header pipe. According to the utility model, the continuous sampling analysis of the online analyzer can be ensured, and the analyzer is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of analyzer sampling, and particularly relates to an on-line analyzer sampling system. Background Art

[0002] The current sampling system has significant limitations, that is, it cannot maintain continuous and uninterrupted supply of samples. This defect not only limits the operation efficiency and stability of the system itself, but also further has an adverse impact on the performance of on-line analytical instruments that rely on it for accurate analysis. Specifically, the interruption or irregular supply of the sample flow will directly cause fluctuations or missing data received by the analyzer, thereby affecting the accuracy, real-time performance and reliability of the monitoring results. In the long run, it may not only delay the timely adjustment of key process parameters, but also cause potential production safety hazards due to misjudgment, increase maintenance costs, and reduce overall production efficiency and product quality. Summary of the Invention

[0003] According to an embodiment of the utility model, an on-line analyzer sampling system is provided, comprising: a conveying pipeline, a sample shut-off valve, a first pneumatic three-way valve, a coalescing filter, a first needle valve, a first ball valve, a first flowmeter, a filter, a first power module, a second pneumatic three-way valve, and a second power module;

[0004] The output end of the conveying pipeline is connected to the input end of an external analyzer for conveying samples;

[0005] The sample shut-off valve, the first pneumatic three-way valve, the coalescing filter, the first needle valve, the first ball valve, the first flowmeter, and the filter are sequentially communicated with the conveying pipeline;

[0006] The first pneumatic three-way valve is connected to an external nitrogen main pipe;

[0007] The first power module is connected to the coalescing filter, an external nitrogen main pipe, and an external return main pipe;

[0008] The second pneumatic three-way valve is connected to the output end of an external analyzer and a venting main pipe;

[0009] The second power module is connected to the second pneumatic three-way valve, an external nitrogen main pipe, and an external return main pipe.

[0010] Further, the first power module comprises: a first Venturi ejector, a first pressure regulating valve, a second ball valve, a second pressure regulating valve, a third ball valve, a first check valve, a second flowmeter, and a second needle valve;

[0011] One end of the first Venturi ejector is successively connected to the external nitrogen main pipe through a first pressure regulating valve and a second ball valve. The other end of the first Venturi ejector is successively connected to the external return main pipe through a second pressure regulating valve and a third ball valve. The remaining end of the first Venturi ejector is successively connected to the coalescing filter through a first one-way valve, a second flowmeter, and a second needle valve.

[0012] Furthermore, the second power module includes: a second Venturi ejector and a second one-way valve;

[0013] One end of the second Venturi ejector is connected to the external nitrogen main pipe, the other end of the second Venturi ejector is connected to the external return main pipe, and the remaining end of the second Venturi ejector is connected to a second pneumatic three-way valve through a second one-way valve.

[0014] Furthermore, it further includes: a third pressure regulating valve and a fourth ball valve;

[0015] One end of the third pressure regulating valve is connected to the first pneumatic three-way valve, and the other end of the third pressure regulating valve is connected to one end of the fourth ball valve;

[0016] The other end of the fourth ball valve is connected to the external nitrogen main pipe.

[0017] Furthermore, it further includes: a calibration gas three-way valve, which is connected between the coalescing filter and the first needle valve, and the calibration gas three-way valve is also connected to the external calibration gas source.

[0018] Furthermore, it further includes: a sampling valve and a sampler;

[0019] One end of the sampling valve is connected between the filter and the output end of the external analyzer;

[0020] The sampler is connected to the other end of the sampling valve.

[0021] An on-line analyzer sampling system according to an embodiment of the present invention, its core highlight lies in the ingenious application of the three-way ball valve. This design allows the system to achieve seamless and rapid switching between the sample flow and the calibration gas, greatly improving the operation flexibility and analysis efficiency. In terms of pipeline layout, the system ingeniously incorporates the design of a double Venturi ejector. If one of the paths has a problem, the other path can be normally switched and used. This innovation not only optimizes the hydrodynamic characteristics but also ensures continuous sampling and analysis of the sample during the process of being transported to the on-line analyzer without any adverse impact on its internal mechanism.

[0022] It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1Schematic diagram of the structure of a sampling system for an on-line analyzer according to an embodiment of the present utility model. Detailed implementation mode

[0024] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, and the present utility model will be further elaborated.

[0025] First, in conjunction with Figure 1 Describe an on-line analyzer sampling system according to an embodiment of the present utility model, which is used for on-line analysis of samples and has a wide range of application scenarios.

[0026] As Figure 1 shown, an on-line analyzer sampling system according to an embodiment of the present utility model includes a conveying pipeline 1, a sample shut-off valve 2, a first pneumatic three-way valve 3, a coalescing filter 4, a first needle valve 5, a first ball valve 6, a first flow meter 7, a filter 8, a first power module, a second pneumatic three-way valve 9, and a second power module;

[0027] Specifically, as Figure 1 shown, the output end of the conveying pipeline 1 is connected to the input end of an external analyzer 15 for conveying samples; the sample shut-off valve 2, the first pneumatic three-way valve 3, the coalescing filter 4, the first needle valve 5, the first ball valve 6, the first flow meter 7, and the filter 8 are sequentially connected to the conveying pipeline 1; the first pneumatic three-way valve 3 is connected to the external nitrogen main pipeline; the first power module is connected to the coalescing filter 4, the external nitrogen main pipeline, and the external return main pipeline; the second pneumatic three-way valve 9 is connected to the output end of the external analyzer 15 and the vent main pipeline; the second power module is connected to the second pneumatic three-way valve 9, the external nitrogen main pipeline, and the external return main pipeline.

[0028] Further, as Figure 1 shown, the first power module includes: a first Venturi ejector 101, a first pressure regulating valve 102, a second ball valve 103, a second pressure regulating valve 104, a third ball valve 105, a first check valve 106, a second flow meter 107, and a second needle valve 108; one end of the first Venturi ejector 101 is sequentially connected to the external nitrogen main pipeline through the first pressure regulating valve 102 and the second ball valve 103, the other end of the first Venturi ejector 101 is sequentially connected to the external return main pipeline through the second pressure regulating valve 104 and the third ball valve 105, and the remaining end of the first Venturi ejector 101 is sequentially connected to the coalescing filter 4 through the first check valve 106, the second flow meter 107, and the second needle valve 108.

[0029] Further, as Figure 1As shown in the figure, the second power module includes: a second Venturi ejector 201 and a second check valve 202; one end of the second Venturi ejector 201 is connected to the external nitrogen main pipe, the other end of the second Venturi ejector 201 is connected to the external return main pipe, and the remaining end of the second Venturi ejector 201 is connected to the second pneumatic three-way valve 9 through the second check valve 202.

[0030] Furthermore, as Figure 1 shown, an in-line analyzer sampling system according to an embodiment of the present invention further includes: a third pressure regulating valve 10 and a fourth ball valve 11; one end of the third pressure regulating valve 10 is connected to the first pneumatic three-way valve 3, and the other end of the third pressure regulating valve 10 is connected to one end of the fourth ball valve 11; the other end of the fourth ball valve 11 is connected to the external nitrogen main pipe.

[0031] Furthermore, as Figure 1 shown, an in-line analyzer sampling system according to an embodiment of the present invention further includes: a calibration gas three-way valve 12, the calibration gas three-way valve 12 is connected between the coalescing filter 4 and the first needle valve 5, and the calibration gas three-way valve 12 is also connected to an external calibration gas source. When calibration gas treatment is required, the calibration gas three-way valve 12 is connected to the calibration gas source and the analyzer 15, so as to calibrate the analyzer 15.

[0032] Furthermore, as Figure 1 shown, an in-line analyzer sampling system according to an embodiment of the present invention further includes: a sampling valve 13 and a sampler 14; one end of the sampling valve 13 is connected between the filter 8 and the output end of the external analyzer 15; the sampler 14 is connected to the other end of the sampling valve 13. When sampling is required, the sampling valve 13 is opened and sampling is performed through the sampler 14.

[0033] Open the sample shut-off valve 2, the sample enters through the conveying pipeline 1, and is divided into two paths after passing through the coalescing filter 4. The first path consists of a first Venturi ejector 101, a first check valve 106, a second flow meter 107 and a second needle valve 108, and the second path consists of a calibration gas three-way valve 12, a first needle valve 5 and a first ball valve 6. The sample passes through the first flow meter 7 to detect the flow rate in the first path, is filtered by the filter 8, and finally enters the in-line analyzer 15 for analysis. The two Venturi ejectors are provided to enable the sample to be used normally in case of problems in one path under high-temperature conditions, so that continuous sampling and analysis of the in-line analyzer 15 can be achieved.

[0034] Above, with reference to Figure 1An on-line analyzer sampling system according to an embodiment of the present utility model is described. The core highlight lies in the ingenious application of a three-way ball valve, which allows the system to achieve seamless and rapid switching between the sample flow and the calibration gas, greatly improving the operation flexibility and analysis efficiency. In terms of pipeline layout, the system ingeniously incorporates the design of a double Venturi ejector. If one of the paths has a problem, the other path can be switched to normal use. This innovation not only optimizes the hydrodynamic characteristics but also ensures continuous sampling and analysis of the sample during the process of being transported to the on-line analyzer 15 without any adverse impact on its internal mechanism.

[0035] It should be noted that in this specification, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0036] Although the content of the present utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present utility model. After those skilled in the art have read the above content, various modifications and substitutions to the present utility model will be obvious. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims

1. An on-line analyzer sampling system, characterized in that, Comprising: a transfer pipeline, a sample shut-off valve, a first pneumatic three-way valve, a coalescing filter, a first needle valve, a first ball valve, a first flowmeter, a filter, a first power module, a second pneumatic three-way valve, and a second power module; The output end of the transfer pipeline is connected to the input end of an external analyzer for transferring samples; The sample shut-off valve, the first pneumatic three-way valve, the coalescing filter, the first needle valve, the first ball valve, the first flowmeter, and the filter are sequentially connected to the transfer pipeline; The first pneumatic three-way valve is connected to an external nitrogen main pipe; The first power module is connected to the coalescing filter, an external nitrogen main pipe, and an external return main pipe; The second pneumatic three-way valve is connected to the output end of an external analyzer and a vent main pipe; The second power module is connected to the second pneumatic three-way valve, an external nitrogen main pipe, and an external return main pipe; 2. The sampling system of the on-line analyzer according to claim 1, characterized in that, The first power module comprises: a first Venturi ejector, a first pressure regulating valve, a second ball valve, a second pressure regulating valve, a third ball valve, a first check valve, a second flowmeter, and a second needle valve; One end of the first Venturi ejector is sequentially connected to the external nitrogen main pipe through the first pressure regulating valve and the second ball valve, the other end of the first Venturi ejector is sequentially connected to the external return main pipe through the second pressure regulating valve and the third ball valve, and the remaining end of the first Venturi ejector is sequentially connected to the coalescing filter through the first check valve, the second flowmeter, and the second needle valve; 3. The sampling system of the on-line analyzer according to claim 1, characterized in that, The second power module comprises: a second Venturi ejector and a second check valve; One end of the second Venturi ejector is connected to the external nitrogen main pipe, the other end of the second Venturi ejector is connected to the external return main pipe, and the remaining end of the second Venturi ejector is connected to the second pneumatic three-way valve through the second check valve; 4. The on-line analyzer sampling system according to claim 1, wherein Also comprising: a third pressure regulating valve and a fourth ball valve; One end of the third pressure regulating valve is connected to the first pneumatic three-way valve, and the other end of the third pressure regulating valve is connected to one end of the fourth ball valve; The other end of the fourth ball valve is connected to the external nitrogen main pipe; 5. The sampling system of the on-line analyzer according to claim 1, wherein, Also comprising: a calibration gas three-way valve, which is connected between the coalescing filter and the first needle valve and is also connected to an external calibration gas source; 6. The sampling system of the on-line analyzer according to claim 1, wherein Also comprising: a sampling valve and a sampler; One end of the sampling valve is connected between the filter and the output end of the external analyzer; The sampler is connected to the other end of the sampling valve.

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