Device for protecting oxygen and humidity in mixed gas

Abstract

The utility model provides a protective device for oxygen and humidity in mixed gas, which belongs to the technical field of gas detection and comprises a probe rod. The probe protective cover is in threaded connection with the surface of the circumference; the threading sleeve fixing seat is connected in the threading sleeve fixing seat; the mounting seat is connected to the threading sleeve fixing seat, and the mounting seat is connected with a 40-micron sintering filter screen; the 20-micron sintered filter screen is connected to the 40-micron sintered filter screen, and a sensor is connected to the interior of the 20-micron sintered filter screen; the heating rod is connected to the 20-micron side end of the sintering filter screen, the sealing ring and the sealing threads are used for two-stage protection of water from entering, the protective cover is additionally arranged at the front end, direct contact is avoided, the structure is reasonable, assembling is easy, and the accuracy and durability of data measurement are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas detection, and particularly relates to a protection device for oxygen and humidity in a mixed gas. Background Art

[0002] Accurately measuring the content of oxygen and humidity in a mixed gas is a very important basic work for subsequent calculations.

[0003] In the existing methods for monitoring oxygen and humidity, particulate matter is filtered at the front end and sealed with a sealing ring. Due to the presence of particulate matter and moisture in the mixed gas, it is easy to cause blockage at the front end of the sensor, and moisture enters the electrical circuit, resulting in inaccurate monitoring data. Content of the Utility Model

[0004] The purpose of the utility model is to provide a protection device for oxygen and humidity in a mixed gas, aiming to solve the problems existing in the prior art. To overcome the above problems, a protection device for oxygen and humidity in a mixed gas is provided. Two-level protection against moisture entry is achieved through a sealing ring and a sealing thread, and a protective cover is added at the front end to avoid direct contact. Its structure is reasonable, easy to assemble, and improves the accuracy and durability of data measurement.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A protection device for oxygen and humidity in a mixed gas, comprising:

[0007] A probe rod;

[0008] A probe protective cover, which is threadedly connected to the circumferential surface of the probe rod;

[0009] A wire threading sleeve fixing seat, which is connected inside the probe rod;

[0010] An installation seat, which is connected to the wire threading sleeve fixing seat, and a sintered filter screen with a pore size of 40 microns is connected to the installation seat;

[0011] A sintered filter screen with a pore size of 20 microns, which is connected to the sintered filter screen with a pore size of 40 microns, and a sensor is connected inside the sintered filter screen with a pore size of 20 microns;

[0012] A heating rod, which is connected to one side end of the sintered filter screen with a pore size of 20 microns,

[0013] A temperature sensor

[0014] The temperature sensor is connected to the other side end of the sintered filter screen with a pore size of 20 microns;

[0015] A chamfer, which is arranged on the circumferential surface of the installation seat.

[0016] As a preferred embodiment of the present utility model, two stepped fine-threaded threads are machined on the inner side of the probe rod.

[0017] As a preferred embodiment of the present utility model, fixed threaded holes are provided on the probe head protective cover and are fixedly connected to the outer edge of the probe rod with three screws.

[0018] As a preferred embodiment of the present utility model, fine-threaded threads are machined at one end of the sintered filter screen with a size of 20 microns for matching with the fine-threaded threads on the inner side of the probe rod.

[0019] As a preferred embodiment of the present utility model, a mounting base with holes for installing a heating rod and a temperature sensor has a temperature sensor and a heating rod installed inside. Sealed threads are machined at the end for matching with the inner threads of the probe rod, and a sealing ring is provided at the lower part.

[0020] As a preferred embodiment of the present utility model, mounting holes are provided on the wire threading sleeve fixing base, and sensors are installed in the internal holes. Threads are machined at one end of the sintered filter screen with a size of 40 microns for matching with the threads of the wire threading sleeve fixing base.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. In this solution, by machining two stepped fine-threaded threads on the inner side of the probe rod, fixedly connecting it with the probe head protective cover with fixed threaded holes using three set screws, and machining fine-threaded threads at one end of the 20-micron sintered filter screen for matching with the fine-threaded threads on the inner side of the probe rod, the connection accuracy and stability of the entire device are improved. The design of the fine-threaded threads increases the bite force at the connection, helping to prevent loosening under vibration or impact, thus ensuring the accuracy and reliability of gas detection.

[0023] 2. In this solution, chamfers are provided on the circumferential surface of the mounting base, increasing the aesthetics and convenience of operation of the device. A mounting base with holes for installing a heating rod and a temperature sensor has a temperature sensor and a heating rod installed inside. Sealed threads are machined at the end for matching with the inner threads of the probe rod, and a sealing ring is provided at the lower part, ensuring the correct installation and position of the heating rod and the temperature sensor, improving the durability and applicability of the device. Threads are machined at one end of the 40-micron sintered filter screen for matching with the threads of the wire threading sleeve fixing base, ensuring the firmness and tightness of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0025] Figure 1 is the first view of the present utility model;

[0026] Figure 2 This is the second view of the present utility model;

[0027] Figure 3 This is the third view of the present utility model;

[0028] Figure 4 This is the fourth view of the present utility model.

[0029] In the figure: 1, probe rod; 2, probe head protective cover; 3, wire threading sleeve fixing seat; 4, mounting seat; 5, sintered filter screen 40 microns; 6, sintered filter screen 20 microns; 7, sensor; 8, heating rod; 9, temperature sensor; 10, chamfer. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment 1

[0032] Please refer to Figures 1-4 , the present utility model provides the following technical solutions:

[0033] A protection device for oxygen and humidity in a mixed gas, comprising:

[0034] Probe rod 1;

[0035] Probe head protective cover 2, the probe head protective cover 2 is threadedly connected to the circumferential surface of the probe rod 1;

[0036] Wire threading sleeve fixing seat 3, the wire threading sleeve fixing seat 3 is connected inside the probe rod 1;

[0037] Mounting seat 4, the mounting seat 4 is connected to the wire threading sleeve fixing seat 3, and a sintered filter screen 40 microns 5 is connected to the mounting seat 4;

[0038] Sintered filter screen 20 microns 6, the sintered filter screen 20 microns 6 is connected to the sintered filter screen 40 microns 5, and a sensor 7 is connected inside the sintered filter screen 20 microns 6;

[0039] Heating rod 8, the heating rod 8 is connected to one side end of the sintered filter screen 20 microns 6,

[0040] Temperature sensor 9

[0041] The temperature sensor 9 is connected to the other side end of the sintered filter screen 20 microns 6;

[0042] Chamfer 10 is provided on the circumferential surface of the mounting base 4.

[0043] In a specific embodiment of the present utility model, the probe rod 1 serves as the basic structure of the entire device and is used to fix the probe protective cover 2 and the mounting base 4 together. The material of the probe rod 1 should have sufficient strength and corrosion resistance to adapt to various environmental conditions. The probe protective cover 2 is threadedly connected to the circumferential surface of the probe rod 1 and is used to protect the sensor 7 from the external environment. The material of the probe protective cover 2 should have good sealing performance and corrosion resistance. The wire threading sleeve fixing seat 3 is connected inside the probe rod 1 and is used to fix wires or connectors to ensure stable transmission of electrical signals. The material of the wire threading sleeve fixing seat 3 should have good insulation performance. The mounting base 4 is connected to the wire threading sleeve fixing seat 3 and is used to mount the sintered filter 40 microns 5 and the sintered filter 20 microns 6. The material of the mounting base 4 should have sufficient strength and corrosion resistance. The sintered filter 40 microns 5 is connected to the mounting base 4 and is used to filter larger particles to protect the sensor 7 from damage. The material of the sintered filter 40 microns 5 should have good filtering performance and corrosion resistance. The sintered filter 20 microns 6 is connected to the sintered filter 40 microns 5 and is used to further filter particles and is connected to the sensor 7. The material of the sintered filter 20 microns 6 should have good filtering performance and corrosion resistance. The sensor 7 is connected inside the sintered filter 20 microns 6 and is used to detect the oxygen and humidity content in the mixed gas. The material and type of the sensor 7 should be selected according to actual application requirements. The heating rod 8 is connected to one side end of the sintered filter 20 microns 6 and is used to heat the gas to improve the response speed and accuracy of the sensor. The material of the heating rod 8 should have good high-temperature resistance. The temperature sensor 9 is connected to the other side end of the sintered filter 20 microns 6 and is used to monitor the temperature of the heating rod 8 to ensure the safety of the heating process. The material and type of the temperature sensor 9 should be selected according to actual application requirements. The chamfer 10 is provided on the circumferential surface of the mounting base 4 and is used to increase the aesthetic appearance of the device and the convenience of operation. The material of the chamfer 10 should be the same as that of the mounting base 4 to ensure the overall strength and corrosion resistance.

[0044] For details, please refer to Figures 1-4 , and two stepped fine-threaded threads are machined inside the probe rod 1.

[0045] In this embodiment, the two stepped fine-threaded threads inside the probe rod 1 can provide the following advantages: Enhance connectivity. The design of the stepped fine-threaded thread increases the biting force of the thread and improves the firmness of the connection with the probe protective cover 2. The pitch of the fine-threaded thread is smaller, and the biting force between each thread tooth is larger, which helps prevent the connection from loosening under vibration or impact.

[0046] For details, please refer to Figures 1-4 , and the probe protective cover 2 with fixed threaded holes is fixedly connected to the outer circle of the probe rod 1 with three screws.

[0047] In this embodiment: The probe protective cover 2 with fixed threaded holes is fixedly connected to the outer edge of the probe rod 1 using three screws. This design choice aims to ensure a tight connection and stability between the probe protective cover 2 and the probe rod 1. Specifically, the advantages of using three setscrews for fixed connection include: increasing connection stability: The fixed connection method of three setscrews can provide more support points and enhance the connection stability. The threads of the setscrews match the threaded holes on the probe rod 1 and the probe protective cover 2, ensuring the tightness of the connection.

[0048] Specifically, please refer to Figures 1-4 , one end of the sintered filter screen 20 microns 6 is machined with fine threads for matching with the fine threads inside the probe rod 1.

[0049] In this embodiment: One end of the sintered filter screen 20 microns 6 is machined with fine threads for matching with the fine threads inside the probe rod 1. This design choice aims to achieve an accurate connection and fixation between the sintered filter screen 20 microns 6 and the probe rod 1. Specifically, the advantages of machining fine threads at one end of the sintered filter screen 20 microns 6 include: improving connection accuracy: The design of fine threads can provide higher connection accuracy, ensuring a tight fit between the sintered filter screen 20 microns 6 and the probe rod 1.

[0050] The pitch of the fine threads is small, making the connection tighter and reducing the risk of gas leakage. Enhancing structural stability: The close arrangement of the fine threads increases the friction at the connection, helping to prevent loosening under vibration or impact. The biting effect of the threads can provide additional support and improve the structural stability of the entire device.

[0051] Specifically, please refer to Figures 1-4 , the mounting base with holes for installing the heating rod 8 and the temperature sensor 9, with the temperature sensor 9 and the heating rod 8 installed inside, the end is machined with sealing threads for matching with the internal threads of the probe rod 1, and a sealing ring is provided at the lower part.

[0052] In this embodiment: The mounting base with holes for installing the heating rod 8 and the temperature sensor 9, with the temperature sensor 9 and the heating rod 8 installed inside, the end is machined with sealing threads for matching with the internal threads of the probe rod 1, and a sealing ring is provided at the lower part. This design choice aims to achieve a tight connection and seal between the mounting base and the probe rod, while ensuring the correct installation and position of the heating rod 8 and the temperature sensor 9. Specifically, the design of this embodiment has the following advantages: improving connection stability: The sealing threads machined at the end match the internal threads of the probe rod 1, ensuring the firm fixation of the mounting base. The threaded connection method provides sufficient friction and reduces the loosening of the connecting parts under vibration or impact. Enhancing sealing performance: The sealing ring provided at the lower part can provide additional sealing on the basis of the threaded connection to prevent gas or liquid leakage. The material of the sealing ring should have good sealing performance and corrosion resistance to ensure long-term stable sealing effect.

[0053] For details, please refer to Figures 1-4 , the wire threading sleeve fixing seat 3 of the mounting hole, the sensor 7 is installed in the internal hole position, the sintered filter screen 40 microns 5 has a thread machined at one end, which is thread-matched with the wire threading sleeve fixing seat 3.

[0054] In this embodiment: the sensor 7 is installed in the internal hole position of the wire threading sleeve fixing seat 3 of the mounting hole, and one end of the sintered filter screen 40 microns 5 has a thread machined, which is thread-matched with the wire threading sleeve fixing seat 3. This design choice aims to achieve precise connection and fixation between the sensor 7, the sintered filter screen 40 microns 5 and the wire threading sleeve fixing seat 3. Specifically, the advantages of machining a thread at one end of the sintered filter screen 40 microns 5 include: improving connection accuracy: the design of the thread can provide higher connection accuracy, ensuring a tight fit between the sintered filter screen 40 microns 5 and the wire threading sleeve fixing seat 3. The small pitch of the thread makes the connection tighter, reducing the risk of gas leakage.

[0055] The working principle and usage process of the utility model: First, install the probe rod 1: Place the probe rod 1 in the appropriate position to ensure its stability. Install the probe head protective cover 2: Thread the probe head protective cover 2 onto the circumferential surface of the probe rod 1 to ensure a firm connection. Install the wire threading sleeve fixing seat 3: Connect the wire threading sleeve fixing seat 3 inside the probe rod 1 to ensure its stability. Install the sensor 7: Install the sensor 7 in the internal hole position of the wire threading sleeve fixing seat 3 to ensure the correct installation of the sensor 7. Install the sintered filter screen 40 microns 5: Thread one end of the sintered filter screen 40 microns 5 to match the wire threading sleeve fixing seat 3 to ensure a firm connection. Install the heating rod 8 and the temperature sensor 9: Install the heating rod 8 and the temperature sensor 9 inside the mounting seat to ensure they are in the correct positions. The sealed thread machined at the end is thread-matched with the inner thread of the probe rod 1 to ensure the firm fixation of the mounting seat. Install the sintered filter screen 20 microns 6: Connect the sintered filter screen 20 microns 6 to the sintered filter screen 40 microns 5 to ensure a firm connection. Install the temperature sensor 9 and the heating rod 8: There is a sensor 7 connected inside the sintered filter screen 20 microns 6 to ensure the correct installation of the sensor 7. The heating rod 8 is connected to one side end of the sintered filter screen 20 microns 6 to ensure the correct installation of the heating rod 8. Install the sealing ring: Set a sealing ring at the lower part of the mounting seat to ensure good sealing at the connection. Adjustment and testing: Check whether all components are correctly installed and stable. Turn on the device and test the gas detection effect. Adjust the operations of the sensor 7 and the heating rod 8 as needed to optimize the gas detection effect.

[0056] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protection device for oxygen and humidity in a mixed gas, characterized in that, Comprising: Probe rod (1); Probe head protective cover (2), the probe head protective cover (2) is threadedly connected to the circumferential surface of the probe rod (1); Threading sleeve fixing seat (3), the threading sleeve fixing seat (3) is connected inside the probe rod (1); Mounting seat (4), the mounting seat (4) is connected to the threading sleeve fixing seat (3), and a sintered filter screen 40 microns (5) is connected to the mounting seat (4); Sintered filter screen 20 microns (6), the sintered filter screen 20 microns (6) is connected to the sintered filter screen 40 microns (5), and a sensor (7) is connected inside the sintered filter screen 20 microns (6); Heating rod (8), the heating rod (8) is connected to one side end of the sintered filter screen 20 microns (6), Temperature sensor (9) The temperature sensor (9) is connected to the other side end of the sintered filter screen 20 microns (6); Chamfer (10), the chamfer (10) is provided on the circumferential surface of the mounting seat (4).

2. The protection device for oxygen and humidity in a mixed gas according to claim 1, characterized in that: Two stepped fine-threaded threads are machined on the inner side of the probe rod (1).

3. The protection device for oxygen and humidity in a mixed gas according to claim 2, characterized in that: Fixed threaded holes are provided on the probe head protective cover (2), and it is fixedly connected to the outer circle of the probe rod (1) with three setscrews.

4. The oxygen and humidity protection device for a mixed gas according to claim 3, characterized in that: One end of the sintered filter screen 20 microns (6) is machined with fine-threaded threads for matching with the fine-threaded threads on the inner side of the probe rod (1).

5. The protection device for oxygen and humidity in a mixed gas according to claim 4, characterized in that: A mounting seat with holes for installing the heating rod (8) and the temperature sensor (9), the temperature sensor (9) and the heating rod (8) are installed inside, the end is machined with sealing threads for matching with the inner threads of the probe rod (1), and a sealing ring is provided at the lower part.

6. The oxygen and humidity protection device for a mixed gas according to claim 5, characterized in that: Mounting holes are provided on the threading sleeve fixing seat (3), the sensor (7) is installed in the internal holes, one end of the sintered filter screen 40 microns (5) is machined with threads for matching with the threading sleeve fixing seat (3) in a threaded manner.

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