Oxygen content detector

Abstract

The utility model discloses an oxygen content detector which comprises a base, the base is connected with a processing piece used for detecting the oxygen content of boiler gas, the processing piece comprises two groups of detecting pieces, each detecting piece comprises a mounting frame mounted on the front side of the upper end of the base, the upper end of each mounting frame is fixedly connected with a connecting cylinder, and the connecting cylinders are connected with a connecting rod. A limiting frame is connected to the inner side of the connecting cylinder in a clamped mode, a filter shell is rotationally connected into the limiting frame, and a sleeve assembly is connected to the rear side of the middle of the filter shell. According to the oxygen content detector, the mounting frame, the connecting cylinder, the limiting frame, the filter shell, the sleeve assembly, the bevel gear assembly, the recovery box, the scraper, the steel pipe, the cross-shaped frame, the oxygen sensor and the limiting frame are matched with one another, and dust in boiler gas is filtered and recovered in the boiler gas extraction process; and the subsequent oxygen content detection effect is prevented from being influenced by the blockage of dust at the filtering end.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen content detection, in particular to an oxygen content detector. Background Art

[0002] During the oxygen content detection process, an oxygen content detector is needed. An oxygen content detector with reference to publication number CN218239967U includes a drainage sleeve inserted into the boiler furnace, a flue gas inlet pipe installed on the exposed end of the drainage sleeve, and a blower connected to the flue gas inlet pipe through an adapter sleeve, which can increase its service life. As described in the above patent, when the existing oxygen content detector is used, in order to reduce the impact of dust in the gas on oxygen detection, most of them only have a filter plate set at the exhaust end. However, during the use of most devices, it is difficult to effectively recover the impurities retained at the filter end, and when the sensor needs to be replaced or the recovered impurities need to be extracted, the exhaust process needs to be interrupted, which affects the efficiency of the device. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides an oxygen content detector, which solves the problems of poor impurity recovery efficiency caused by clogging at the filter end of the device, interruption of air extraction when replacing components, and impact on oxygen content detection efficiency.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an oxygen content detector, comprising a base, the base being connected to a side processing element for detecting oxygen content in boiler gas, the processing element comprising:

[0005] Two groups of detection parts, the detection part includes a mounting bracket installed on the front side of the upper end of the base, the upper end of the mounting bracket is fixedly connected to a connecting cylinder, the inner side of the connecting cylinder is clamped with a limit frame, the filter housing is rotatably connected in the limit frame, the rear side of the middle part of the filter housing is connected with a sleeve assembly, the sleeve inside the sleeve assembly is connected to a bevel gear assembly connected to the connecting cylinder, a recovery box is installed at the bottom of the connecting cylinder near the lower side of the filter housing, a scraper that fits the outer surface of the filter housing is fixedly connected to the inside of the recovery box, a connecting piece is installed on the rear side of the connecting cylinder, the connecting piece includes a steel pipe threadedly connected to the rear side of the connecting cylinder, a cross frame is slidably connected to the inside of the steel pipe, and an oxygen sensor is installed in the middle of the cross frame;

[0006] The air extraction component is installed on the upper end of the base and is connected to the two sets of detection components respectively;

[0007] A driving member is mounted on the base and is used to drive the bevel gear assembly.

[0008] Preferably, the mounting frame is fixedly connected to the base by a first screw, a flange is installed on the front outer surface of the connecting tube, a protrusion is provided on the outer side of the limit frame, a sliding groove is provided on the inner side of the connecting tube for sliding connection with the protrusion, and a second screw is provided on the outer side of the connecting tube for threaded connection with the limit frame.

[0009] Preferably, the upper surface of the filter housing is provided with a plurality of filter holes, the sleeve assembly includes a cross shaft coaxially fixedly connected to the middle part of the filter housing, the driven bevel gear in the bevel gear assembly is coaxially fixedly connected to the sleeve in the sleeve assembly, and the sleeve is rotatably connected to the inside of the connecting tube and is clamped with the cross shaft.

[0010] Preferably, a mounting groove slidably connected to the recovery box is provided on the lower side of the connecting tube, a third screw threadedly connected to the connecting tube is installed on the edge of the recovery box, and the connecting piece also includes a limit frame fixedly connected to the rear end of the inner side of the connecting tube, and the rear side of the limit frame is fitted with the cross frame.

[0011] Preferably, the vacuum assembly includes an air pump fixedly connected to the base, a three-way valve is installed at the vacuum end of the air pump, and conduits are installed on the left and front sides of the three-way valve. Both groups of conduits are threadedly connected to the rear side of the steel pipe, and the conduits are metal hoses.

[0012] Preferably, the driving member includes a dual-axis motor fixedly connected to the base, and auxiliary cross shafts are installed at the output ends on both sides of the dual-axis motor. The active bevel gear in the bevel gear assembly is coaxially fixedly connected to the auxiliary cross shaft that is rotatably connected to the connecting cylinder, and the middle part of the auxiliary sleeve is provided with an auxiliary cross groove that engages with the auxiliary cross shaft.

[0013] Beneficial effects

[0014] The utility model provides an oxygen content detector. Compared with the existing technology, it has the following advantages:

[0015] (1) The oxygen content detector sets a detection part and a driving part in the device, so that the mounting frame, connecting tube, limit frame, filter housing, sleeve assembly, bevel gear assembly, recovery box, scraper, steel pipe, cross frame, oxygen sensor and limit frame cooperate with each other. During the boiler gas extraction process, the dust in the boiler gas is filtered and recovered, and the subsequent oxygen content detection effect is prevented from being affected by the blockage of dust at the filter end. It is also convenient for users to quickly disassemble and replace the corresponding filter housing, recovery box and oxygen sensor, which is convenient for subsequent oxygen detection effect.

[0016] (2) The oxygen content detector is provided with an exhaust component in the device. When the oxygen sensor in a set of detection components used in the device is damaged and the dust in the recovery box needs to be discharged, the three-way valve is reversed. At this time, the air pump extracts the gas in the boiler through the three-way valve, another set of conduits, and the detection component. At this time, the recovery box and connector in the original detection component are disassembled, the impurities in the recovery box are discharged, and the oxygen sensor is replaced. This arrangement realizes uninterrupted oxygen content detection by changing the exhaust direction when the oxygen sensor is damaged and the impurities in the recovery box need to be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partially cutaway perspective view of the present utility model;

[0018] Figure 2 For this utility model Figure 1 A partial enlarged view of point A in the middle;

[0019] Figure 3 For this utility model Figure 1 A partial enlarged view of point B in the middle;

[0020] Figure 4 This is an enlarged view of the driving member of the utility model;

[0021] Figure 5 It is a three-dimensional diagram of the present utility model.

[0022] In the figure: 1. Base; 2. Detection part; 21. Mounting frame; 22. Connecting tube; 23. Limiting frame; 24. Filter housing; 25. Sleeve assembly; 26. Bevel gear assembly; 27. Recovery box; 28. Scraper; 29. ​​Connecting part; 291. Steel pipe; 292. Cross frame; 293. Oxygen sensor; 294. Limiting frame; 3. Vacuum assembly; 31. Air pump; 32. Three-way valve; 33. Conduit; 4. Driving part; 41. Dual-axis motor; 42. Auxiliary cross shaft; 43. Auxiliary sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See Figure 1-5 As shown, the utility model provides the following two technical solutions:

[0025] The first embodiment: an oxygen content detector includes a base 1, the base 1 is connected to a processing part for detecting the oxygen content of boiler gas, the processing part includes: two groups of detection parts 2, the detection part 2 includes a mounting frame 21 installed on the front side of the upper end of the base 1, the upper end of the mounting frame 21 is fixedly connected to a connecting cylinder 22, the inner side of the connecting cylinder 22 is clamped with a limit frame 23, a filter housing 24 is rotatably connected in the limit frame 23, a sleeve assembly 25 is connected to the rear side of the middle part of the filter housing 24, the sleeve inside the sleeve assembly 25 is connected to a bevel gear assembly 26 connected to the connecting cylinder 22, a recovery box 27 is installed at the bottom of the connecting cylinder 22 near the lower side of the filter housing 24, a scraper 28 that fits the outer surface of the filter housing 24 is fixedly connected to the inner side of the recovery box 27, a connecting part 29 is installed on the rear side of the connecting cylinder 22, the connecting part 29 includes a steel pipe 291 threadedly connected to the rear side of the connecting cylinder 22, a cross frame 292 is slidably connected to the inner side of the steel pipe 291, and an oxygen sensor 293 is installed in the middle of the cross frame 292;

[0026] The exhaust assembly 3 is mounted on the upper end of the base 1 and is connected to the two groups of detection members 2 respectively; the driving member 4 is mounted on the base 1 and is used to drive the bevel gear assembly 26; the mounting frame 21 is fixedly connected to the base 1 by a first screw, a flange is installed on the outer surface of the front side of the connecting cylinder 22, a protrusion is provided on the outer side of the limit frame 23, a slide groove is provided on the inner side of the connecting cylinder 22 for sliding connection with the protrusion, and a second screw is provided on the outer side of the connecting cylinder 22 for threaded connection with the limit frame 23; a plurality of filter holes are provided on the upper surface of the filter housing 24, the sleeve assembly 25 includes a cross shaft coaxially fixedly connected to the middle part of the filter housing 24, the driven bevel gear in the bevel gear assembly 26 is coaxially fixedly connected to the sleeve in the sleeve assembly 25, the sleeve is rotatably connected to the inside of the connecting cylinder 22 and is clamped to the cross shaft;

[0027] The lower side of the connecting cylinder 22 is provided with a mounting groove that is slidably connected to the recovery box 27. The edge of the recovery box 27 is installed with a third screw that is threadedly connected to the connecting cylinder 22. The connecting member 29 also includes a limit frame 294 fixedly connected to the inner rear end of the connecting cylinder 22. The rear side of the limit frame 294 fits with the cross frame 292; the driving member 4 includes a dual-axis motor 41 fixedly connected to the base 1, and the output ends of both sides of the dual-axis motor 41 are equipped with an auxiliary cross shaft 42. The active bevel gear in the bevel gear assembly 26 is coaxially fixedly connected to the auxiliary cross shaft 42 that is rotatably connected to the connecting cylinder 22. An auxiliary cross slot is provided in the middle of the auxiliary sleeve 43, which engages with the auxiliary cross shaft 42. The mounting frame 21, the connecting tube 22, the limiting frame 23, the filter housing 24, the sleeve assembly 25, the bevel gear assembly 26, the recovery box 27, the scraper 28, the steel pipe 291, the cross frame 292, the oxygen sensor 293, and the limiting frame 294 cooperate with each other to filter and recover dust in the boiler gas during the boiler gas extraction process, and prevent dust from clogging at the filter end. The corresponding filter housing 24, the recovery box 27, and the oxygen sensor 293 can be quickly disassembled and replaced.

[0028] The second embodiment differs from the first embodiment mainly in that:

[0029] The exhaust assembly 3 includes an air pump 31 fixedly connected to the base 1, and a three-way valve 32 is installed at the exhaust end of the air pump 31. Conduits 33 are installed on the left and front sides of the three-way valve 32. The two sets of conduits 33 are threadedly connected to the rear side of the steel pipe 291, and the conduits 33 are metal hoses; when the oxygen sensor 293 in a group of detection parts 2 used in the device is damaged and the dust in the recovery box 27 needs to be discharged, the three-way valve 32 is reversed. At this time, the air pump 31 extracts the gas in the boiler through the three-way valve 32, another set of conduits 33, and the detection part 2. At this time, the recovery box 27 and the connecting part 29 in the original detection part 2 are disassembled, the impurities in the recovery box 27 are discharged, and the oxygen sensor 293 is replaced.

[0030] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0031] During use, the user fixes the two sets of connecting tubes 22 to the boiler furnace detection pipeline through the flange, electrically connects the oxygen sensor 293 to the external controller, and starts the air pump 31. The air pump 31 extracts the flue gas in the boiler through the three-way valve 32, the conduit 33, the steel pipe 291, the connecting tube 22, the filter shell 24, and the pipeline. The filter shell 24 filters the smoke in the extracted gas. When the gas passes through the oxygen sensor 293, the oxygen sensor 293 detects the oxygen content in the passing gas. During the above-mentioned extraction process, the dual-axis motor 41 is started, and the dual-axis motor 41 is connected to the auxiliary cross shaft 42, the auxiliary sleeve 43, the bevel gear assembly 26, and the sleeve assembly. Component 25 drives the filter housing 24 to rotate, and the scraper 28 scrapes the outer surface of the rotating filter housing 24 to promote the dust retained on the outside of the filter housing 24 to fall into the recovery box 27. When the oxygen sensor 293 in the detection component 2 is damaged and the dust in the recovery box 27 needs to be exported, the three-way valve 32 is reversed. At this time, the air pump 31 extracts the gas in the boiler through the three-way valve 32, another set of conduits 33, and the detection component 2. At this time, the recovery box 27 and the connecting component 29 in the original detection component 2 are removed, the impurities in the recovery box 27 are exported, and the oxygen sensor 293 in the connecting component 29 is replaced. The oxygen sensor 293 is a prior art, so its specific internal structure and working principle are not described in detail.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oxygen content detector, comprising a base (1), characterized in that: The base (1) is connected to a side processing component for detecting the oxygen content of boiler gas, and the processing component comprises: Two sets of detection members (2), the detection members (2) include a mounting frame (21) mounted on the front side of the upper end of the base (1), the upper end of the mounting frame (21) is fixedly connected to a connecting cylinder (22), the inner side of the connecting cylinder (22) is clamped with a limiting frame (23), a filter housing (24) is rotatably connected in the limiting frame (23), the middle rear side of the filter housing (24) is connected to a sleeve assembly (25), the inner sleeve of the sleeve assembly (25) is connected to a bevel gear assembly (26) connected to the connecting cylinder (22), and the connecting cylinder (22) is fixedly connected to the upper end of the mounting frame (21), the connecting cylinder (22) is fixedly connected to the limiting frame (23), the inner side of the limiting frame (23) is fixedly connected to the filter housing (24), the inner side of the limiting frame (23) is fixedly connected to the limiting frame (23), the filter housing (24) is fixedly connected to the limiting frame (23 ... filter housing (24) is fixedly connected to the limiting frame (23), the filter housing (24) is fixedly connected to the limiting frame (23), the filter housing (24) is fixedly connected to the limiting frame (23), the filter housing (24) is fixedly connected to the limiting frame (23), the filter A recovery box (27) is installed at the bottom of the connecting tube (22) near the lower side of the filter housing (24), and a scraper (28) that is in contact with the outer surface of the filter housing (24) is fixedly connected to the inner side of the recovery box (27). A connecting piece (29) is installed on the rear side of the connecting tube (22), and the connecting piece (29) includes a steel pipe (291) threadedly connected to the rear side of the connecting tube (22). A cross frame (292) is slidably connected to the inner side of the steel pipe (291), and an oxygen sensor (293) is installed in the middle of the cross frame (292); An air extraction assembly (3) is mounted on the upper end of the base (1) and is connected to the two sets of detection components (2) respectively; A driving member (4) is mounted on the base (1) and is used to drive the bevel gear assembly (26).

2. An oxygen content detector according to claim 1, characterized in that: The mounting frame (21) is fixedly connected to the base (1) by a first screw, a flange is installed on the front outer surface of the connecting tube (22), a protrusion is provided on the outer side of the limiting frame (23), a sliding groove is provided on the inner side of the connecting tube (22) and is slidably connected to the protrusion, and a second screw is provided on the outer side of the connecting tube (22) and is threadedly connected to the limiting frame (23).

3. An oxygen content detector according to claim 1, characterized in that: The filter housing (24) has a plurality of filter holes on its upper surface. The sleeve assembly (25) includes a cross shaft coaxially fixedly connected to the middle of the filter housing (24). The driven bevel gear in the bevel gear assembly (26) is coaxially fixedly connected to the sleeve in the sleeve assembly (25). The sleeve is rotatably connected to the interior of the connecting cylinder (22) and is clamped to the cross shaft.

4. An oxygen content detector according to claim 1, characterized in that: The lower side of the connecting tube (22) is provided with a mounting groove that is slidably connected to the recovery box (27), and the edge of the recovery box (27) is installed with a third screw that is threadedly connected to the connecting tube (22). The connecting member (29) also includes a limit frame fixedly connected to the inner rear end of the connecting tube (22), and the rear side of the limit frame is in contact with the cross frame (292).

5. The oxygen content detector according to claim 1, characterized in that: The air extraction assembly (3) comprises an air pump (31) fixedly connected to the base (1); a three-way valve (32) is installed at the air extraction end of the air pump (31); a conduit (33) is installed on the left side and the front side of the three-way valve (32); two groups of the conduits (33) are threadedly connected to the rear side of the steel pipe (291); and the conduits (33) are metal hoses.

6. An oxygen content detector according to claim 1, characterized in that: The driving member (4) comprises a dual-axis motor (41) fixedly connected to the base (1); an auxiliary cross shaft (42) is installed at both output ends of the dual-axis motor (41); the driving bevel gear in the bevel gear assembly (26) is coaxially fixedly connected to the auxiliary cross shaft (42) rotatably connected to the connecting cylinder (22); and an auxiliary cross groove is provided in the middle of the auxiliary sleeve (43) for meshing with the auxiliary cross shaft (42).

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