Improved transformer exhaust device

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to an improved transformer exhaust device which comprises an air inlet pipe, a gas detection sensor, a purification box, an exhaust pump, a PLC (programmable logic controller), a purification inner box and an activated carbon filter screen plate. A gas detection sensor is fixedly installed in the middle of the left side of the purification box, an exhaust pump is fixedly installed at the upper end of the purification box, the output end of the exhaust pump penetrates through the top of the purification box, and a PLC is fixedly installed on the upper portion of the rear end of the purification box; the gas detection sensor and the exhaust pump are electrically connected with the PLC; according to the automatic exhaust device for the transformer, gas in the transformer can be exhausted in time, automatic exhaust is timely and efficient, labor is saved, convenience is achieved, use is good, and therefore accurate measurement of an oil level indicator and stable operation and use of the transformer are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to transformer technical field, concretely relates to an improved transformer exhaust device. BACKGROUND

[0002] In the operation process of transformer, a small amount of gas is produced by the thermal decomposition of insulating oil, and with the continuous accumulation of gas in the transformer, the internal pressure will continue to rise, and the gas will push open the spring type exhaust valve on the exhaust pipe of the transformer and be discharged outward, but in the actual use process, most of the transformer exhaust valves will become difficult to push open for exhaust as the use time becomes longer, the gas in the transformer cannot be discharged, and too much accumulation will further affect the accuracy of the oil level meter, so that the oil level meter cannot accurately indicate the oil level, and further affect the daily use of the transformer.

[0003] In the prior art, the Chinese utility model patent with publication number CN207367743U proposes an automatic exhaust device for power transformer, which comprises a box body, a box cover, a control unit and an electromagnetic valve, the control unit and the electromagnetic valve are arranged in the box body, the electromagnetic valve is connected with the control unit through wires, the time control switch and the electromagnetic valve arranged in the box body are used, the gas inlet end of the electromagnetic valve is connected with the exhaust port of the transformer, the electromagnetic valve is controlled by the time control switch to exhaust the transformer, so that the internal waste gas of the transformer is completely discharged.

[0004] However, the exhaust device has the following problems in use:

[0005] 1. It is a timed exhaust, i.e. it exhausts once every certain period of time, and when the gas in the transformer increases, it cannot discharge the gas in the transformer in time, and when the gas accumulates too much, it will further affect the accuracy of the transformer oil level meter measurement, and the use is not good.

[0006] 2. When it is used for exhaust, the gas is directly discharged outward through the electromagnetic valve, the gas lacks certain purification treatment, the gas containing certain harmful substances is directly discharged outward, which will further aggravate the pollution of the surrounding environment, and the use is not good.

[0007] Therefore, further improvement design is needed. UTILITY MODEL CONTENT

[0008] To solve the above problems in the prior art, the utility model provides an improved transformer exhaust device, which can discharge the gas in the transformer in time, automatically exhaust in time and efficiently, save labor, convenient, and use better, so as to ensure the accurate measurement of the oil level meter and the stable operation and use of the transformer.

[0009] In order to achieve the above object, the utility model provides the following technical scheme: An improved transformer exhaust device, including air inlet pipe, gas detection sensor, purification box, exhaust pump, PLC controller, purification inner box and activated carbon filter screen, the bottom middle position of purification box is fixedly connected with air inlet pipe, the left side middle position of gas detection sensor is fixedly installed with gas detection sensor, the upper end of purification box is fixedly installed with exhaust pump, and the output end of exhaust pump penetrates the top of purification box, the rear end upper portion of purification box is fixedly installed with PLC controller, and the gas detection sensor and exhaust pump are electrically connected with PLC controller;

[0010] The inside of the purification box is provided with a purification inner box, an air inlet is formed in the middle of the bottom of the purification inner box, and a plurality of activated carbon filter screen plates are arranged in the purification inner box.

[0011] A slot is formed in the right side of the purification box, and the right side of the purification inner box is movably connected with the slot, a plurality of insertion grooves are formed in the left side of the purification inner box, and the left side of the activated carbon filter screen plate is insertedly connected with the insertion grooves.

[0012] A handle is fixedly connected to the middle of the right side of the purification inner box, a first clamping strip is fixedly connected to the middle of the upper end of the right side of the handle, a limiting clamping block is movably connected in the first clamping strip, a pressing block is fixedly connected to the bottom right side of the limiting clamping block, a spring is fixedly connected to the bottom of the pressing block, the bottom of the spring is fixedly connected with the upper end of the handle, a second clamping strip is fixedly connected to the middle of the upper end of the right side of the purification box, and the upper end of the first clamping strip is insertedly connected with the second clamping strip.

[0013] As an improved transformer exhaust device of the utility model, a sleeve is fixedly connected to the bottom end of the air inlet pipe, and a rubber layer is coated on the inner wall of the sleeve.

[0014] As an improved transformer exhaust device of the utility model, an air suction nozzle is fixedly connected to the input end of the exhaust pump, and the air suction nozzle is of a conical structure.

[0015] As an improved transformer exhaust device of the utility model, an exhaust nozzle is fixedly connected to the output end of the exhaust pump, and the exhaust nozzle is of a conical structure.

[0016] As an improved transformer exhaust device of the utility model, a rubber layer is coated on the inner wall of the slot.

[0017] As an improved transformer exhaust device of the utility model, a plurality of supporting strips are fixedly connected to the right inner wall of the purification inner box, and the right bottom end of the activated carbon filter screen plate is in contact with the upper end of the supporting strip.

[0018] As an improved transformer exhaust device of the utility model preferred technical scheme, the handle is "U" shaped structure.

[0019] As an improved transformer exhaust device of the utility model preferred technical scheme, the upper end of the limiting block is arc structure.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] The transformer internal gas can diffuse upwards into the air inlet pipe, and can be detected by the gas detection sensor when passing through the air inlet pipe, and the detection signal is uploaded to the PLC controller, and after analysis and processing by the PLC controller, the control signal is further issued to the exhaust pump, the exhaust pump is started, the gas in the transformer is automatically discharged, until no gas passes through the air inlet pipe, through the above technical scheme, the gas in the transformer can be discharged in time, automatic exhaust is timely and efficient, labor-saving and convenient, and the use is better, so that the accurate measurement of the oil level gauge and the stable operation of the transformer are ensured.

[0022] The utility model is equipped with a purification inner box in the purification box, and a plurality of activated carbon filter screen plates are arranged in the purification inner box, in the exhaust process, the gas can be purified to a certain extent through the plurality of activated carbon filter screen plates, and the pollution caused by the exhaust of the gas can be reduced, which is simple and convenient and better to use.

[0023] The purification inner box can be pulled out relative to the purification box, and the plurality of activated carbon filter screen plates can also be pulled out relative to the purification box, which is convenient for cleaning and replacement of the plurality of activated carbon filter screen plates in the future, simple and convenient, and better to use.

[0024] After the purification inner box is pushed into the purification box, the limiting block in the first clamping strip on the purification inner box is connected with the second clamping strip on the purification box, the pushed-in purification inner box is limited and fixed, the purification inner box can be prevented from moving out by itself, and then the pressing block can drive the limiting block to move downward, so that the limiting block is detached from the second clamping strip, the limiting connection state of the first clamping strip and the second clamping strip can be quickly released, the purification box can be further taken out, which is simple and convenient and better to use. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, together with the embodiments of the utility model, for explaining the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0026] Figure 1 It is a structural schematic view of the utility model;

[0027] Figure 2 It is right side structure schematic view of the utility model;

[0028] Figure 3 It is front view internal structure schematic view of the utility model;

[0029] Figure 4 It is local section structure schematic view of the utility model;

[0030] Figure 5 It is purification inner box section structure schematic view of the utility model;

[0031] Figure 6 It is Figure 2 Enlarged structure schematic view of A of

[0032] Figure 7 It is limiting block connection section structure schematic view of the utility model.

[0033] In the figure: 1, sleeve pipe;2, air inlet pipe;3, gas detection sensor;4, purification tank;5, exhaust pump;6, air suction nozzle;7, exhaust nozzle;8, PLC controller;9, slot;10, purification inner box;11, air inlet;12, slot;13, activated carbon filter screen;14, supporting strip;15, handle;16, clamping strip one;17, limiting block;18, pressing block;19, spring;20, clamping strip two. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. EMBODIMENT

[0035] Please refer to Figures 1-7 The utility model provides the following technical scheme: an improved transformer exhaust device, which comprises an air inlet pipe 2, a gas detection sensor 3, a purification tank 4, an exhaust pump 5, a PLC controller 8, a purification inner box 10 and an activated carbon filter screen 13.

[0036] Refer to Figure 1 , Figure 2 , Figure 3 And Figure 4As shown, further, the bottom end of the purification box 4 is fixedly connected with the air inlet pipe 2, the bottom end of the air inlet pipe 2 is fixedly connected with the sleeve 1, the inner wall of the sleeve 1 is coated with a rubber layer, the left side of the gas detection sensor 3 is fixedly installed with the gas detection sensor 3, the upper end of the purification box 4 is fixedly installed with the exhaust pump 5, the output end of the exhaust pump 5 penetrates through the top of the purification box 4, the input end of the exhaust pump 5 is fixedly connected with the air suction nozzle 6, the air suction nozzle 6 is of a conical structure, the output end of the exhaust pump 5 is fixedly connected with the exhaust nozzle 7, the exhaust nozzle 7 is of a conical structure, the upper end of the rear end of the purification box 4 is fixedly installed with the PLC controller 8, and the gas detection sensor 3 and the exhaust pump 5 are electrically connected with the PLC controller 8, wherein the sleeve 1 is used for connecting the device with the exhaust pipe of the transformer, the sealing effect of the connection can be improved through the rubber layer, gas leakage can be prevented, the fastening of the connection can be enhanced, the air suction range of the exhaust pump 5 can be increased through the exhaust nozzle 7, and the exhaust area of the exhaust pump 5 can be increased through the exhaust nozzle 7.

[0037] In the embodiment, when the transformer is used after being installed, the gas in the transformer can diffuse upwards into the air inlet pipe 2, can be detected by the gas detection sensor 3 when passing through the air inlet pipe 2, and the detection signal is uploaded to the PLC controller 8. After being analyzed and processed by the PLC controller 8, the control signal is further sent to the exhaust pump 5, the exhaust pump 5 is started, and the gas in the transformer is automatically discharged until no gas passes through the air inlet pipe 2. Through the above technical scheme, the gas in the transformer can be discharged in time, the automatic exhaust is timely and efficient, labor-saving and convenient, and the use is better, so that the accurate measurement of the oil level gauge and the stable operation of the transformer are ensured.

[0038] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, further, the inside of the purification box 4 is provided with a purification inner box 10, the bottom end of the purification inner box 10 is provided with an air inlet 11, and the inside of the purification inner box 10 is provided with a plurality of activated carbon filter screen plates 13.

[0039] In the embodiment, the purification inner box 10 is arranged in the purification box 4, and the purification inner box 10 is provided with a plurality of activated carbon filter screen plates 13. During the exhaust process, the gas can be purified to a certain extent through the plurality of activated carbon filter screen plates 13, and the pollution caused by the exhaust of the gas can be reduced, which is simple and convenient and better to use.

[0040] Referring to Figure 4 and Figure 5As shown, further, the right side of the purification box 4 is provided with a slot 9, and the right side of the purification inner box 10 is movably connected with the slot 9, and the left side of the purification inner box 10 is provided with a plurality of insertion slots 12, and the left side of the activated carbon filter screen plate 13 is insertedly connected with the insertion slot 12, and the right side inner wall of the purification inner box 10 is fixedly connected with a plurality of supporting strips 14, and the right side bottom end of the activated carbon filter screen plate 13 is in contact with the upper end of the supporting strip 14, wherein the right side of the activated carbon filter screen plate 13 can be lifted and supported by the supporting strip 14.

[0041] In the embodiment, the purification inner box 10 can be pulled out relative to the purification box 4, and the plurality of activated carbon filter screen plates 13 can also be pulled out relative to the purification box 4, which is convenient for cleaning and replacing the plurality of activated carbon filter screen plates 13 in the future, simple and convenient, and better in use.

[0042] Referring to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , further, the right side of the purification inner box 10 is fixedly connected with a pull handle 15 at the middle position, the pull handle 15 is a "U" shaped structure, the pull handle 15 is fixedly connected with a clamping strip one 16 at the upper end of the right side, the clamping strip one 16 is movably connected with a limiting clamping block 17 inside, the upper end of the limiting clamping block 17 is an arc-shaped structure, the bottom end of the limiting clamping block 17 is fixedly connected with a pressing block 18 on the right side, the bottom end of the pressing block 18 is fixedly connected with a spring 19, and the bottom end of the spring 19 is fixedly connected with the upper end of the pull handle 15, the right side upper end of the purification box 4 is fixedly connected with a clamping strip two 20, and the upper end of the clamping strip one 16 is insertedly connected with the clamping strip two 20, wherein the pull handle 15 is used for pulling and pulling out the purification inner box 10, and the arc-shaped upper end of the limiting clamping block 17 is designed to facilitate the smooth insertion of the upper end of the limiting clamping block 17 into the clamping strip two 20.

[0043] In the embodiment, after the purification inner box 10 is pushed into the purification box 4, the limiting clamping block 17 on the clamping strip one 16 of the purification inner box 10 is clamped and connected with the clamping strip two 20 on the purification box 4, the pushed-in purification inner box 10 is limited and fixed, and the purification inner box 10 can be prevented from moving out by itself, and then the limiting clamping block 17 can be driven to move downward by the pressing block 18, so that the limiting clamping block 17 is separated from the clamping strip two 20, the limiting connection state of the clamping strip one 16 and the clamping strip two 20 can be quickly released, the purification box 4 can be further taken out, it is simple and convenient, and better in use.

[0044] The use process and working principle of the utility model: when installing, sleeve 1 is connected with the exhaust port or exhaust pipe of the transformer, and PLC controller 8 is connected with external power source, in the use process, the gas in the transformer can diffuse upwards into the inside of air inlet pipe 2, purification box 4 and purification inner box 10, when the gas passes through air inlet pipe 2, it can be detected by gas detection sensor 3, and the detection signal is uploaded to PLC controller 8, after analysis and processing by PLC controller 8, the control signal is sent to exhaust pump 5, exhaust pump 5 is started, through exhaust pump 5, air suction nozzle 6 and exhaust nozzle 7, the gas in the transformer, air inlet pipe 2, purification box 4 and purification inner box 10 can be discharged to the outside, until no gas passes through air inlet pipe 2, it can be detected by gas detection sensor 3 and returned, and then PLC controller 8 controls exhaust pump 5 to stop, and in the exhaust process, through several activated carbon filter screen plates 13, the gas can be purified to a certain extent, and the pollution caused by the gas discharge can be reduced.

[0045] In the future, by pressing block 18, limit block 17 is pressed, spring 19 is compressed, the upper end of limit block 17 is separated from clamping strip two 20, the limiting and fixing state of purification inner box 10 can be released, then purification inner box 10 is pulled out from purification box 4 through slot 9 by handle 15, then activated carbon filter screen plate 13 is taken out from purification inner box 10 through insertion slot 12, and the activated carbon filter screen plate 13 can be cleaned and replaced.

[0046] In addition, the contents not described in detail in the embodiment are in the category of prior art and public knowledge.

[0047] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An improved transformer venting device, characterized by: Including the air inlet pipe (2), gas detection sensor (3), purification box (4), exhaust pump (5), PLC controller (8), purification inner box (10) and activated carbon filter screen plate (13), the bottom end of the purification box (4) is fixedly connected with the air inlet pipe (2), the left side of the gas detection sensor (3) is fixedly installed with the gas detection sensor (3), the upper end of the purification box (4) is fixedly installed with the exhaust pump (5), and the output end of the exhaust pump (5) penetrates the top of the purification box (4), the rear upper portion of the purification box (4) is fixedly installed with the PLC controller (8), and the gas detection sensor (3) and the exhaust pump (5) are electrically connected with the PLC controller (8); The inside of the purification box (4) is provided with a purification inner box (10), the bottom end of the purification inner box (10) is provided with an air inlet (11), and the inside of the purification inner box (10) is provided with a plurality of activated carbon filter screen plates (13); The right side of the purification box (4) is provided with a slot (9), and the right side of the purification inner box (10) is movably connected with the slot (9), the left side of the purification inner box (10) is provided with a plurality of insertion grooves (12), and the left side of the activated carbon filter screen plate (13) is insertedly connected with the insertion grooves (12); The right side of the purification inner box (10) is fixedly connected with a handle (15), the right side of the handle (15) is fixedly connected with a clamping strip one (16), the inside of the clamping strip one (16) is movably connected with a limiting clamping block (17), the bottom end of the limiting clamping block (17) is fixedly connected with a pressing block (18), the bottom end of the pressing block (18) is fixedly connected with a spring (19), and the bottom end of the spring (19) is fixedly connected with the upper end of the handle (15), the right upper end of the purification box (4) is fixedly connected with a clamping strip two (20), and the upper end of the clamping strip one (16) is insertedly connected with the clamping strip two (20).

2. An improved transformer venting device as claimed in claim 1, wherein: The bottom end of the air inlet pipe (2) is fixedly connected with a sleeve (1), and the inner wall of the sleeve (1) is coated with a rubber layer.

3. An improved transformer venting device as claimed in claim 1, wherein: The input end of the exhaust pump (5) is fixedly connected with a suction nozzle (6), and the suction nozzle (6) is a conical structure.

4. An improved transformer venting device as claimed in claim 1, wherein: The output end of the exhaust pump (5) is fixedly connected with an exhaust nozzle (7), and the exhaust nozzle (7) is a conical structure.

5. An improved transformer venting device as claimed in claim 1, wherein: The inner wall of the slot (9) is coated with a rubber layer.

6. An improved transformer venting device as claimed in claim 1, wherein: The right inner wall of the purification inner box (10) is fixedly connected with a plurality of supporting strips (14), and the right bottom end of the activated carbon filter screen plate (13) is in contact with the upper end of the supporting strip (14).

7. An improved transformer venting device as claimed in claim 1, wherein: The handle (15) is a "U" shaped structure.

8. An improved transformer venting device as claimed in claim 1, wherein: The upper end of the limiting clamping block (17) is an arc structure.

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