Gas dew point and micro-aerobic detection device

Abstract

The utility model relates to the technical field of gas detection equipment, and provides a gas dew point and micro-aerobic detection device which comprises a first hose, a first throttle valve, a second hose and an inlet of a three-way joint which are sequentially connected, and two outlets of the three-way joint are respectively and sequentially connected with a third hose, a second throttle valve and a fourth hose. The pair of fourth hoses is connected to the dew-point instrument and the micro-aerobic instrument respectively; the first hose is connected with a sampling opening formed in the process pipeline. Through the first adjustment of the first throttle valve, the shunting of the three-way joint and the re-adjustment of the pair of second throttle valves connected in parallel, the gas flow can be accurately controlled, so that the gas flow accords with the standard measuring ranges required by the detection of the dew-point instrument and the micro-aerobic instrument to complete the detection at the same time, the accuracy and reliability of the dew-point and micro-aerobic detection are ensured, the detection efficiency is high, and the detection cost is low. The instrument is prevented from being damaged; in addition, through the three-way connector and the pair of second throttling valves connected in parallel, the instrument can be compared and calibrated under the same working condition, and the accuracy of instrument calibration is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of gas detection equipment, specifically to a gas dew point and micro-oxygen detection device. Background Technology

[0002] Currently, due to production process regulations, it is necessary to use dew point meters and micro-oxygen meters to detect the dew point and micro-oxygen of the gas in the process pipeline in order to determine the dew point temperature and oxygen concentration of the gas.

[0003] In existing technology, dew point meters and micro-oxygen meters are connected to sampling ports on process pipelines via latex tubing, and the sampling ports are controlled to be fully open or fully closed using process valves. This structural approach has the following problems:

[0004] 1. The process valve cannot accurately adjust the gas flow rate, which can easily lead to excessive gas flow rate during the detection process, exceeding the standard range required for detection. This affects the accuracy and reliability of dew point and micro-oxygen detection, and may even cause damage to the instrument.

[0005] 2. The sampling ports on the existing process pipelines cannot be connected to both the dew point meter and the micro-oxygen meter at the same time, meaning that dew point and micro-oxygen detection cannot be performed simultaneously, resulting in slow measurement speed and low efficiency.

[0006] 3. When an instrument shows a deviation and requires comparative calibration (i.e., a calibration method that uses the accurate reading of an instrument as a reference value and modifies the reading of the instrument with the deviation to the reference value), the sampling port on the existing process pipeline cannot connect two instruments at the same time. Instead, the instrument with the accurate reading and the instrument with the deviation reading can only be connected to the sampling port one after the other. The time difference between the two calibrations makes it impossible to ensure that the temperature, humidity, pressure, and flow rate of the gas entering the two instruments are under the same operating conditions, resulting in deviations in the calibration results.

[0007] 4. Excessive gas temperature in the process pipeline can damage the dew point meter and micro-oxygen meter, making it impossible to detect dew point and micro-oxygen.

[0008] 5. Latex hoses are prone to aging and cracking under high temperature and high pressure environments, resulting in a short service life, which may affect the reliability and durability of the pipeline. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a gas dew point and micro-oxygen detection device to solve the problems in existing technologies, such as the inability of process valves to accurately adjust gas flow, the inability to connect two instruments simultaneously at the sampling port, and the inability to perform dew point and micro-oxygen detection when the gas temperature is too high.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A gas dew point and micro-oxygen detection device, comprising:

[0012] The first flexible tube is connected to the sampling port opened on the process pipeline and is used to introduce the gas to be detected into this detection device.

[0013] First throttle valve;

[0014] Second hose;

[0015] A tee connector has one inlet and two outlets;

[0016] A pair of third hoses;

[0017] A pair of second throttle valves; and

[0018] A pair of fourth hoses, which are respectively connected to the dew point meter and the micro-oxygen meter;

[0019] The first hose, the first throttle valve, and the second hose are connected in sequence and then connected to the inlet of the three-way connector through the second hose. Each of the third hoses, the second throttle valve, and the fourth hose is connected in sequence and then connected to one outlet of the three-way connector through the third hose.

[0020] In one embodiment disclosed in this application, the tee connector is a reducing tee with a large inlet and a small outlet.

[0021] In one embodiment disclosed in this application, a cooling device is also included;

[0022] The cooler is connected in parallel with the first hose via two fifth hoses to reduce the temperature of the gas to be tested in the process pipeline.

[0023] In one embodiment disclosed in this application, the cooling device includes:

[0024] Foam boxes are used for insulation.

[0025] Cooling water is contained within the foam box; and

[0026] The heat dissipation copper pipes are immersed in the cooling water in a serpentine structure.

[0027] The inlet and outlet ends of the heat dissipation copper pipe extend out of the foam box and are equipped with second solenoid valves. The second solenoid valves are connected to the fifth flexible hose and are electrically connected to the temperature sensor installed on the process pipeline and the first solenoid valve installed on the first flexible hose, respectively. The first solenoid valve is located between the two second solenoid valves.

[0028] In one embodiment disclosed in this application, a semiconductor cooling chip is attached to the heat dissipation copper pipe;

[0029] The semiconductor cooling chip is built into the foam box and is located near the inlet end of the heat dissipation copper pipe.

[0030] In one embodiment disclosed in this application, the cooler further includes a rechargeable fan;

[0031] The rechargeable fan is fixedly installed on the top of the foam box and is used to cool the cooling water and / or the heat dissipation copper pipe in a wind-cooled manner.

[0032] In one embodiment disclosed in this application, the diameters of the first hose, the second hose, and the fifth hose are all 10 mm, and the diameters of the third hose and the fourth hose are all 8 mm.

[0033] Correspondingly, the inlet diameter of the tee connector is 10mm and the outlet diameter is 8mm.

[0034] In one embodiment disclosed in this application, the first hose, the second hose, the third hose, the fourth hose, and the fifth hose are silicone tubes.

[0035] Compared with the prior art, the beneficial effects of this utility model are:

[0036] 1. By adjusting the first throttle valve initially, diverting the flow through the three-way connector, and readjusting the second throttle valves connected in parallel, the gas flow rate can be precisely controlled to meet the standard range required for dew point meter and micro-oxygen meter detection, enabling simultaneous detection. This ensures the accuracy and reliability of dew point and micro-oxygen detection, resulting in high detection efficiency and preventing instrument damage. In addition, the three-way connector and the second throttle valves connected in parallel allow for comparative calibration of the instrument under the same operating conditions, improving the accuracy of instrument calibration.

[0037] 2. By using the reducing tee, the gas can be effectively diverted, achieving the purpose of simultaneously detecting dew point and micro-oxygen; at the same time, by using the reducing tee and a pair of parallel second throttle valves in combination, accurate control and regulation of gas flow can be achieved.

[0038] 3. By using a cooler connected in parallel with the first hose, the temperature of the gas to be tested in the process pipeline can be effectively reduced, thereby meeting the operating conditions of the dew point meter and micro oxygen meter, and thus realizing the detection of dew point and micro oxygen.

[0039] 4. The semiconductor cooling chip can generate sufficient cooling capacity to pre-cool the gas to be tested from the process pipeline, and at the same time, it can recool the cooling water to make it have cooling capacity again.

[0040] 5. Replacing the existing latex tubing with silicone tubing can prevent cracking, effectively extend service life, and save costs. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the structure of this utility model;

[0043] Figure 2 This is a schematic diagram of the cooling device. Detailed Implementation

[0044] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0050] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0051] See Figure 1 and Figure 2 As shown, this utility model provides a gas dew point and micro-oxygen detection device, comprising:

[0052] The first flexible hose 20 is connected to the sampling port 11 opened on the process pipeline 10 and is used to introduce the gas to be detected into the detection device.

[0053] First throttle valve 30;

[0054] Second hose 40;

[0055] The 50 tee connector has one inlet and two outlets;

[0056] A pair of third hoses, 60;

[0057] A pair of second throttle valves 70; and

[0058] A pair of fourth hoses 80, which are respectively connected to the dew point meter and the micro-oxygen meter;

[0059] The first hose 20, the first throttle valve 30 and the second hose 40 are connected in sequence and then connected to the inlet of the tee connector 50 through the second hose 40. Each third hose 60, the second throttle valve 70 and the fourth hose 80 are connected in sequence and then connected to one outlet of the tee connector 50 through the third hose 60.

[0060] In use, the first hose 20 is connected to the sampling port 11 on the process pipeline 10, and the pair of fourth hoses 80 are connected to the dew point meter and the micro-oxygen meter respectively. Then, the first throttle valve 30 is opened and the opening of the throttle surface is adjusted by the upper knob, so that the gas to be tested in the process pipeline 10 passes through the sampling port 11, the first hose 20, the first throttle valve 30 and the second hose 40 in sequence according to the preset flow rate. After reaching the tee connector 50, it is divided into two gas flows. Then, the second throttle valve 70 is opened and the opening of the throttle surface is adjusted by the upper knob. Each gas flow passes through the third hose 60, the second throttle valve 70 and the fourth hose 80 in sequence according to the standard flow rate required for the test, and enters the dew point meter and the micro-oxygen meter to complete the detection of the dew point temperature and oxygen concentration of the gas respectively. When calibration is required, the pair of fourth hoses 80 are connected to the dew point meter (or micro-oxygen meter) with accurate readings and the dew point meter (or micro-oxygen meter) with deviated readings respectively. This allows for comparative calibration under the premise that the temperature, humidity, pressure and flow rate of the gas are under the same operating conditions, thereby avoiding calibration deviations. In other words, by adjusting the first throttle valve 30 initially, diverting the flow through the three-way connector 50, and readjusting the pair of parallel second throttle valves 70, the gas flow rate can be precisely controlled to meet the standard range required for dew point meter and micro-oxygen meter detection, thus enabling simultaneous detection. This ensures the accuracy and reliability of dew point and micro-oxygen detection, resulting in high detection efficiency and preventing instrument damage. Furthermore, by using the three-way connector 50 and the pair of parallel second throttle valves 70, the instruments can be compared and calibrated under the same operating conditions, improving the accuracy of instrument calibration.

[0061] The tee connector 50 is a reducing tee with a large inlet and a small outlet. This reducing tee structure allows for effective gas diversion, enabling simultaneous detection of dew point and micro-oxygen. Furthermore, the combination of the reducing tee and a pair of parallel second throttle valves 70 enables accurate control and regulation of the gas flow rate.

[0062] The aforementioned gas dew point and micro-oxygen detection device also includes a cooler 90; the cooler 90 is connected in parallel with the first hose 20 via two fifth hoses 91, used to reduce the temperature of the gas to be detected in the process pipeline 10. Specifically, see... Figure 2 As shown, the cooler 90 includes:

[0063] Foam box 92, used for heat insulation;

[0064] Cooling water (not shown in the diagram) is contained in foam box 92; and

[0065] The heat dissipation copper pipe 93 is immersed in cooling water in a serpentine structure;

[0066] Among them, the inlet and outlet ends of the heat dissipation copper pipe 93 extend out of the foam box 92 and are respectively equipped with a second solenoid valve 94. The second solenoid valve 94 is connected to the fifth hose 91 and is electrically connected to the temperature sensor 12 installed on the process pipeline 10 and the first solenoid valve 21 installed on the first hose 20 respectively. The first solenoid valve 21 is located between the two second solenoid valves 94.

[0067] When the temperature sensor 12 detects that the temperature of the gas to be tested in the process pipeline 10 is higher than the preset temperature (e.g., 120°C), the first solenoid valve 21 closes and the two second solenoid valves 94 open, allowing the gas to enter the heat dissipation copper pipe 93 through the fifth hose 91 to exchange heat with the cooling water in the foam box 92, thereby achieving cooling. Afterwards, the gas passes through the first throttle valve 30, the second hose 40, and the tee connector 50 before entering the dew point meter and micro-oxygen meter for detection. In other words, the cooler 90, connected in parallel with the first hose 20, can effectively reduce the temperature of the gas to be tested in the process pipeline 10, thus meeting the operating conditions of the dew point meter and micro-oxygen meter, and enabling the detection of dew point and micro-oxygen.

[0068] A thermoelectric cooler 95 is attached to the heat dissipation copper pipe 93. The thermoelectric cooler 95 is built into the foam box 92 and close to the inlet end of the heat dissipation copper pipe 93. The thermoelectric cooler 95 can generate sufficient cooling capacity to pre-cool the gas to be tested from the process pipeline 10, and at the same time, it can recool the cooling water to restore its cooling capacity.

[0069] The cooler 90 also includes a rechargeable fan 96; the rechargeable fan 96 is fixedly mounted on the top of the foam box 92 for cooling the cooling water and / or the heat dissipation copper pipe 93 in a wind-cooled manner.

[0070] The diameters of the first hose 20, the second hose 40, and the fifth hose 91 are all 10 mm, and the diameters of the third hose 60 and the fourth hose 80 are both 8 mm. Their lengths can be adjusted according to actual needs, and therefore are not specifically limited in this application. Correspondingly, the inlet diameter of the tee connector 50 is 10 mm, and the outlet diameter is 8 mm.

[0071] In this embodiment, the first hose 20, the second hose 40, the third hose 60, the fourth hose 80, and the fifth hose 91 are preferably silicone hoses. Replacing the latex hoses in the prior art with silicone hoses can avoid cracking, effectively extend service life, and save costs.

[0072] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A gas dew point and micro-oxygen detection device, characterized in that, include: The first flexible tube is connected to the sampling port opened on the process pipeline and is used to introduce the gas to be detected into this detection device. First throttle valve; Second hose; A tee connector has one inlet and two outlets; A pair of third hoses; A pair of second throttle valves; and A pair of fourth hoses, which are respectively connected to the dew point meter and the micro-oxygen meter; The first hose, the first throttle valve, and the second hose are connected in sequence and then connected to the inlet of the three-way connector through the second hose. Each of the third hoses, the second throttle valve, and the fourth hose is connected in sequence and then connected to one outlet of the three-way connector through the third hose.

2. The gas dew point and micro-oxygen detection device according to claim 1, characterized in that, The tee fitting is a reducing tee with a large inlet and a small outlet.

3. The gas dew point and micro-oxygen detection device according to claim 1 or 2, characterized in that: It also includes a cooler; The cooler is connected in parallel with the first hose via two fifth hoses to reduce the temperature of the gas to be tested in the process pipeline.

4. The gas dew point and micro-oxygen detection device according to claim 3, characterized in that, The cooling device includes: Foam boxes are used for insulation. Cooling water is contained within the foam box; and The heat dissipation copper pipes are immersed in the cooling water in a serpentine structure. The inlet and outlet ends of the heat dissipation copper pipe extend out of the foam box and are equipped with second solenoid valves. The second solenoid valves are connected to the fifth flexible hose and are electrically connected to the temperature sensor installed on the process pipeline and the first solenoid valve installed on the first flexible hose, respectively. The first solenoid valve is located between the two second solenoid valves.

5. The gas dew point and micro-oxygen detection device according to claim 4, characterized in that: A semiconductor cooling chip is attached to the heat dissipation copper pipe; The semiconductor cooling chip is built into the foam box and is located near the inlet end of the heat dissipation copper pipe.

6. The gas dew point and micro-oxygen detection device according to claim 4 or 5, characterized in that: The cooler also includes a rechargeable fan; The rechargeable fan is fixedly installed on the top of the foam box and is used to cool the cooling water and / or the heat dissipation copper pipe in a wind-cooled manner.

7. The gas dew point and micro-oxygen detection device according to claim 4, characterized in that: The diameters of the first, second, and fifth hoses are all 10 mm, and the diameters of the third and fourth hoses are all 8 mm. Correspondingly, the inlet diameter of the tee connector is 10mm and the outlet diameter is 8mm.

8. The gas dew point and micro-oxygen detection device according to claim 4 or 7, characterized in that, The first hose, the second hose, the third hose, the fourth hose, and the fifth hose are silicone tubes.

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