Oxygen analyzer structure for brazing furnace

By introducing a collection tube, filter, and purge tube into the oxygen analyzer, the problem of impurities entering the brazing furnace oxygen analyzer during air extraction is solved, making impurity filtration and cleaning convenient and extending the instrument's service life.

CN224095819UActive Publication Date: 2026-04-07ZHEJIANG MINGXIN IND FURNACE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing brazing furnace oxygen analyzers are prone to drawing in impurities when extracting air from inside the brazing furnace, leading to instrument damage and difficulty in cleaning.

Method used

An oxygen analyzer structure was designed, comprising a collection tube, a filter, a purge tube, and an outlet tube. Impurities are filtered through the collection tube and cleaned through the purge tube and outlet tube. The design of the tube valves and sealing caps prevents impurities from entering the analyzer body and facilitates cleaning.

Benefits of technology

It effectively filters impurities, reduces the amount of impurities entering the analyzer body, simplifies the cleaning process, extends filter life, and improves instrument reliability and ease of use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224095819U_ABST
Patent Text Reader

Abstract

The utility model discloses an oxygen analyzer structure for a brazing furnace. The oxygen analyzer structure comprises a plurality of collecting pipes which are uniformly distributed around an analyzer body, the mounting plate is fixedly connected with the rear end surface of the analyzer body; the sampling pump is arranged in the analyzer body and fixedly connected with the analyzer body, and one end of the collecting pipe penetrates through the analyzer body and then is fixedly connected with the sampling pump; the filter is arranged in the collecting tube and is fixedly connected with the collecting tube; the purging pipe is arranged on the collecting pipe and on one side of the filter, the purging pipe is communicated with the interior of the collecting pipe, and the purging pipe is fixedly connected with the collecting pipe; the outlet pipe is arranged on the collecting pipe and on the other side of the filter, a communicating port of the outlet pipe is parallel to the purging port, and the outlet pipe is fixedly connected with the collecting pipe; the contactor is arranged in the collecting tube, is fixedly connected with the collecting tube, and is connected with the analyzer body. The filter has the beneficial effects that impurities can be conveniently filtered, and the filter can be better cleaned.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of brazing furnace auxiliary equipment especially points to a kind of oxygen analyzer structure for brazing furnace. BACKGROUND

[0002] Oxygen analyzer provides advanced means for real-time accurate measurement of brazing furnace atmosphere, by measuring the oxygen content in the furnace, so that the atmosphere in the furnace is truly reacted, but after extracting the air inside brazing furnace, there are often many impurities, which can easily damage the oxygen analyzer, and it is not easy to clean. INVENTION CONTENTS

[0003] The utility model discloses to overcome the deficiency that impurities are inhaled and not easy to clean in the prior art, provide a kind of oxygen analyzer structure for brazing furnace with the convenience of filtering impurities and better cleaning.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An oxygen analyzer structure for brazing furnace, comprising:

[0006] The analyzer body is placed in the center of the oxygen analyzer.

[0007] A plurality of collection tubes are evenly distributed around the analyzer body, and the length of each collection tube is different according to the different placement positions. One end of the collection tube is connected to the analyzer body.

[0008] The mounting plate is placed on the rear end surface of the analyzer body, and the mounting plate is fixedly connected to the rear end surface of the analyzer body.

[0009] The sampling pump is placed in the analyzer body and fixedly connected to the analyzer body. One end of the collection tube passes through the analyzer body and is fixedly connected to the sampling pump.

[0010] The filter is placed in the collection tube, and the filter is fixedly connected to the collection tube.

[0011] The purge tube is placed on the collection tube and on one side of the filter. The purge tube is in communication with the inside of the collection tube, and the purge tube is fixedly connected to the collection tube.

[0012] The outlet pipe is placed on the collection tube and on the other side of the filter. The communication port of the outlet pipe is parallel to the purge port, and the outlet pipe is fixedly connected to the collection tube.

[0013] The contactor is placed in the collection tube, and the contactor is fixedly connected to the collection tube. The contactor is connected to the analyzer body.

[0014] During installation, the analyzer body is mounted on the outside of the brazing furnace using a mounting plate. Then, a different number of sampling tubes are installed according to the required number of sampling points, and all sampling tubes are connected to the sampling pump. When in use, the sampling pump is turned on to draw air from different locations inside the brazing furnace, which is received by the contactor and then analyzed by the analyzer body. During this process, the filter inside the sampling tube filters out impurities in the air, greatly reducing the amount of impurities entering the analyzer body. Over time, some impurities can be blown out from the outlet tube using a blower, allowing for cleaning without disassembly, thus achieving the goal of convenient impurity filtration and easier cleaning.

[0015] Preferably, the collection tube is equipped with a valve, which is positioned between the filter and the analyzer body and is fixedly connected to the collection tube. The valve can close the pipe when not needed, reducing the backflow of air from the brazing furnace into the analyzer body.

[0016] Preferably, the filter has a connector on its outer surface, and the collection tube is divided into two sections, each of which is connected to one of the two sections of the connector. The filter is fixedly connected to the connector. The connector allows the collection tube to be separated, enabling the filter to be removed for cleaning or replacement.

[0017] Preferably, filter cotton is provided on both ends of the filter, and the filter cotton is in contact with the filter. The filter cotton can extend the service life of the filter.

[0018] Preferably, both the purge pipe and the outlet pipe are provided with sealing caps at their outer ends, and the sealing caps are respectively connected to the outer surfaces of the purge pipe and the outlet pipe. The sealing caps can seal the purge pipe and the outlet pipe when they are not in use.

[0019] Preferably, an indicator light is provided on the outer surface of the analyzer body, and the indicator light is connected to the analyzer body. The indicator light can indicate the working status.

[0020] Preferably, the analyzer body is equipped with a display screen, which is fixedly connected to the analyzer body. The display screen can directly display the oxygen content.

[0021] Preferably, the collection tube is provided with a sealing ring. The sealing ring has an L-shaped cross-section and surrounds the outer surface of the collection tube. The vertical section of the L-shaped sealing ring contacts the outer surface of the collection tube, and the thickness of the horizontal section of the L-shaped sealing ring gradually decreases from the inside to the outside. The sealing ring can increase the sealing performance of the connection between the collection tube and the brazing furnace.

[0022] The beneficial effects of this utility model are: it facilitates the filtration of impurities and makes cleaning easier; the pipe valves can close the pipeline when not needed, reducing the backflow of air from the brazing furnace into the analyzer body; the connectors can separate the collection tube, allowing the filter to be removed for cleaning or replacement; the filter cotton can extend the service life of the filter; the sealing cap can seal the purge tube and outlet tube when not in use; the indicator light can indicate the working status; the display screen can directly display the oxygen content; and the sealing ring can increase the sealing performance of the connection between the collection tube and the brazing furnace. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the main body of the analyzer;

[0025] Figure 3 This is a cross-sectional view of the collection tube;

[0026] Figure 4 yes Figure 3 A magnified view of detail A.

[0027] In the diagram: 1. Analyzer body, 2. Data collection tube, 3. Mounting plate, 4. Sampling pump, 5. Filter, 6. Purge tube, 7. Outlet tube, 8. Pipe valve, 9. Connector, 10. Filter cotton, 11. Sealing cap, 12. Contactor, 13. Indicator light, 14. Display screen, 15. Sealing ring. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 3In one embodiment, an oxygen analyzer structure for a brazing furnace includes: a plurality of sampling tubes 2 evenly distributed around an analyzer body 1, the length of each sampling tube 2 varying depending on its placement position, one end of each sampling tube 2 connected to the analyzer body 1; a mounting plate 3 placed on the rear end face of the analyzer body 1, the mounting plate 3 being fixedly connected to the rear end face of the analyzer body 1, and the mounting plate being able to be fixedly connected to the brazing furnace; a sampling pump 4 placed inside the analyzer body 1 and fixedly connected to the analyzer body 1, one end of each sampling tube 2 passing through the analyzer body 1 and fixedly connected to the sampling pump 4, the number of connection ports of the sampling pump being the same as the number of sampling tubes; and a filter 5 placed in the sampling tubes. Inside the sample tube 2, filter 5 is fixedly connected to the collection tube 2; purge tube 6 is placed on the collection tube 2 and on one side of filter 5, purge tube 6 is connected to the inside of collection tube 2, and purge tube 6 is fixedly connected to collection tube 2; outlet tube 7 is placed on the collection tube 2 and on the other side of filter 5, the opening of outlet tube 7 is parallel to the purge port, outlet tube 7 is fixedly connected to collection tube 2, outlet tube and purge tube can form an airflow, allowing impurities to flow out with the airflow direction; contactor 12 is placed inside collection tube 2, contactor 12 is fixedly connected to collection tube 2, contactor 12 is connected to analyzer body 1, contactor needs to be connected to oxygen analyzer and PLC for convenient data transmission.

[0030] like Figure 3 As shown, the collection tube 2 is equipped with a valve 8, which is placed between the filter 5 and the analyzer body 1. The valve 8 is fixedly connected to the collection tube 2. The valve needs to be connected to the oxygen analyzer and the PLC and can be wirelessly controlled.

[0031] like Figure 3 and Figure 4 As shown, the outer side of the filter 5 is provided with a connector 9, the collection tube 2 is divided into two sections and the two sections of the collection tube 2 are respectively connected to the two sections of the connector 9, and the filter 5 is fixedly connected to the connector 9.

[0032] like Figure 3 and Figure 4 As shown, filter cotton 10 is provided on both ends of the filter 5, and the filter cotton 10 is in contact with the filter 5.

[0033] like Figure 3 and Figure 4 As shown, both the purge pipe 6 and the outlet pipe 7 are provided with sealing caps 11 at their outer ends, and the sealing caps 11 are connected to the outer surfaces of the purge pipe 6 and the outlet pipe 7, respectively.

[0034] like Figure 1 As shown, an indicator light 13 is provided on the outer surface of the analyzer body 1. The indicator light 13 is connected to the analyzer body 1, and different colored indicator lights can indicate different states.

[0035] like Figure 1As shown, the analyzer body 1 is equipped with a display screen 14, which is fixedly connected to the analyzer body 1.

[0036] like Figure 3 and Figure 4 As shown, the collection tube 2 is provided with a sealing ring 15. The cross-sectional shape of the sealing ring 15 is L-shaped. The sealing ring 15 surrounds the outer surface of the collection tube 2. The vertical section of the L-shaped sealing ring 15 is in contact with the outer surface of the collection tube 2. The thickness of the horizontal section of the L-shaped sealing ring 15 gradually decreases from the inside to the outside.

[0037] During installation, the analyzer body 1 is mounted outside the brazing furnace using the mounting plate 3. Then, a different number of sampling tubes 2 are installed according to the required number of sampling points. All sampling tubes 2 are connected to the sampling pump 4 using adapters for easy disassembly and installation. The portion of the sampling tube 2 inserted into the brazing furnace is sealed by a sealing ring 15. During use, the sampling pump 4 is turned on to extract air from different locations within the brazing furnace. This air is received by the contactor 12 and then analyzed by the analyzer body 1. The analytical components of the analyzer body are all existing parts and will not be described in detail here. During this process, the filter 5 inside the sampling tube 2 filters out impurities from the air. This greatly reduces the amount of impurities entering the analyzer body 1. Over time, some impurities can be blown out of the outlet pipe 7 from the purge tube 6 using a blowing device, allowing for cleaning without disassembly. When not cleaning, cover the purge tube 6 and outlet pipe 7 with the sealing cap 11, or remove the collection tube 2 from the connector 9 and replace the filter cotton 10 to clean the inside of the collection tube 2, or replace the filter 5. Different indicator lights 13 indicate different working states. The specific resin content can be transmitted to the computer via PLC or displayed intuitively on the screen 14, achieving the goal of convenient impurity filtration and easier cleaning.

Claims

1. A structure for an oxygen analyzer used in a brazing furnace, characterized in that, include: The analyzer body (1) is placed in the center of the oxygen analyzer; Several collection tubes (2) are evenly distributed around the analyzer body (1). The length of each collection tube (2) varies depending on its placement position. One end of the collection tube (2) is connected to the analyzer body (1). Mounting plate (3) is placed on the rear end face of the analyzer body (1), and the mounting plate (3) is fixedly connected to the rear end face of the analyzer body (1). The sampling pump (4) is placed inside the analyzer body (1) and fixedly connected to the analyzer body (1). One end of the sampling tube (2) passes through the analyzer body (1) and is fixedly connected to the sampling pump (4). A filter (5) is placed inside the collection tube (2), and the filter (5) is fixedly connected to the collection tube (2); A purge tube (6) is placed on the collection tube (2) and on one side of the filter (5). The purge tube (6) is connected to the inside of the collection tube (2). The purge tube (6) is fixedly connected to the collection tube (2). The outlet tube (7) is placed on the collection tube (2) and on the other side of the filter (5). The connecting port of the outlet tube (7) is parallel to the purge port. The outlet tube (7) is fixedly connected to the collection tube (2). The contactor (12) is placed inside the acquisition tube (2), and the contactor (12) is fixedly connected to the acquisition tube (2). The contactor (12) is connected to the analyzer body (1).

2. The structure of an oxygen analyzer for a brazing furnace according to claim 1, characterized in that, The collection tube (2) is provided with a valve (8), which is placed between the filter (5) and the analyzer body (1). The valve (8) is fixedly connected to the collection tube (2).

3. The structure of an oxygen analyzer for a brazing furnace according to claim 2, characterized in that, The filter (5) has a connector (9) on its outer side. The collection tube (2) is divided into two sections and the two sections of the collection tube (2) are respectively connected to the two sections of the connector (9). The filter (5) is fixedly connected to the connector (9).

4. The structure of an oxygen analyzer for a brazing furnace according to claim 3, characterized in that, The filter (5) is provided with filter cotton (10) on both ends, and the filter cotton (10) is in contact with the filter (5).

5. The structure of an oxygen analyzer for a brazing furnace according to claim 1, characterized in that, Both the purge pipe (6) and the outlet pipe (7) are provided with sealing caps (11), which are connected to the outer surfaces of the purge pipe (6) and the outlet pipe (7), respectively.

6. The structure of an oxygen analyzer for a brazing furnace according to claim 1, characterized in that, An indicator light (13) is provided on the outer surface of the analyzer body (1), and the indicator light (13) is connected to the analyzer body (1).

7. The structure of an oxygen analyzer for a brazing furnace according to claim 6, characterized in that, The analyzer body (1) is provided with a display screen (14), and the display screen (14) is fixedly connected to the analyzer body (1).

8. The structure of an oxygen analyzer for a brazing furnace according to claim 3, characterized in that, The collection tube (2) is provided with a sealing ring (15). The cross-sectional shape of the sealing ring (15) is L-shaped. The sealing ring (15) surrounds the outer surface of the collection tube (2). The vertical section of the L-shaped sealing ring (15) contacts the outer surface of the collection tube (2). The thickness of the horizontal section of the L-shaped sealing ring (15) gradually decreases from the inside to the outside.