CN214374320U - Color development early warning device for monitoring SF6 gas decomposition products of power equipment - Google Patents
Color development early warning device for monitoring SF6 gas decomposition products of power equipment Download PDFInfo
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- CN214374320U CN214374320U CN202120538335.4U CN202120538335U CN214374320U CN 214374320 U CN214374320 U CN 214374320U CN 202120538335 U CN202120538335 U CN 202120538335U CN 214374320 U CN214374320 U CN 214374320U
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Abstract
The utility model discloses a color development early warning device for monitoring SF6 gas decomposition products of power equipment, which comprises a gas production joint and a stainless steel pipe body, wherein the right side surface of the gas production joint is provided with a convex groove, the inside of the convex groove is in threaded connection with the stainless steel pipe body, and a color development pipe is arranged inside the stainless steel pipe body; a cavity is arranged in the gas production joint, a through hole is formed in the middle of the left side surface of the cavity, a gas inlet pipe is transversely arranged in the through hole, one end of the gas inlet pipe extends into the cavity through the through hole and is in threaded connection with the gas inlet end of the electromagnetic valve, and a reserved opening is formed in the other end of the gas inlet pipe; the electromagnetic valve is arranged on the right side surface of the cavity, and the air outlet end of the electromagnetic valve penetrates through the right side surface of the cavity and extends into the stainless steel tube body; a pressure sensor is arranged below the air inlet pipe; the utility model discloses a adopt the gas connector cooperation color rendering pipe, make the latent trouble that the detection personnel can audio-visually judge power equipment existence according to the color rendering pipe colour change condition, reached the effect of suggestion early warning.
Description
Technical Field
The utility model relates to an electric power check out test set technical field especially relates to a color development precaution device that is used for monitoring power equipment's SF6 gaseous decomposition product.
Background
SF6 is widely used as insulating gas in power equipment, such as GIS, circuit breaker and transformer, etc., when the equipment is in operation, the SF6 insulating gas is easy to generate H by irreversible reaction due to faults such as overheat and discharge2S、SO2And (3) detecting the content and the type of the decomposition products, and becoming a technical means for diagnosing latent faults of equipment and positioning fault points. At present, common detection equipment comprises a sensor, a chromatograph and an infrared principle instrument, and needs to carry out on-site gas taking detection, because a large amount of adsorbents are filled in SF6 equipment, the content of decomposition products is rapidly reduced after 24 hours, latent faults are difficult to find in routine periodic tests with intervals of up to three years, and even if hidden dangers of a short period of one year are investigated, the detection equipment is a sea fishing needle. To monitor SF6 gas timely and rapidlyThe decomposition products of the body, improve the detection efficiency, for this reason we propose the color development precaution device of SF6 gas decomposition products for monitoring the power equipment is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the traditional equipment need take a sample earlier when detecting SF6 decomposition product and then detect, the loaded down with trivial details problem of operating procedure discloses a color development precaution device for monitoring power equipment's SF6 gaseous decomposition product, has small, is convenient for install, detects the advantage that work efficiency is high.
The utility model provides a technical scheme that its technical problem adopted is: the color development early warning device for monitoring SF6 gas decomposition products of power equipment comprises a gas production joint and a stainless steel pipe body, wherein a convex groove is formed in the right side surface of the gas production joint, the stainless steel pipe body is in threaded connection with the inside of the convex groove, and a color development pipe is arranged inside the stainless steel pipe body;
a cavity is arranged in the gas production joint, a through hole is formed in the middle of the left side face of the cavity, a gas inlet pipe is transversely arranged in the through hole, one end of the gas inlet pipe extends into the cavity through the through hole and is in threaded connection with the gas inlet end of the electromagnetic valve, and a reserved opening is formed in the other end of the gas inlet pipe;
the electromagnetic valve is arranged in the middle of the right side surface of the cavity, and the air outlet end of the electromagnetic valve penetrates through the right side surface of the cavity and extends into the stainless steel pipe body;
a pressure sensor is arranged below the air inlet pipe, a probe of the pressure sensor extends into the air inlet pipe, and the pressure sensor is fixed on the left side surface of the cavity through a fixing frame;
the battery and the circuit board are further arranged inside the cavity, the battery is arranged on the inner bottom surface of the cavity, and the circuit board is arranged on the right side of the battery and fixed below the right side surface of the cavity.
Preferably, the color development tubes are two groups and are respectively fixed inside the stainless steel tube body through a fixing plate.
Preferably, one end of the outer wall of the stainless steel pipe body, which corresponds to the color development pipe, is provided with a group of observation windows respectively.
Preferably, the electromagnetic valve is fixed on the right side surface of the cavity through a fixing seat, and two ends of the fixing seat are fixed on the right side surface of the cavity through screws.
Preferably, one end of the contact surface of the air inlet pipe and the electromagnetic valve is provided with a first sealing ring.
Preferably, a second sealing ring is arranged between the bottom surface of the stainless steel pipe body and the inner bottom surface of the convex groove, and the second sealing ring is sleeved on the periphery of the air outlet end of the electromagnetic valve.
Compared with the prior art, the beneficial effects of the utility model are that: compared with the traditional detection equipment which needs to take gas first and then detect, the color development early warning device for monitoring the SF6 gas decomposition products of the power equipment improves the working efficiency by directly installing the color development early warning device on the gas taking port of the SF6 power equipment;
the utility model discloses a gas production connector cooperates the color development pipe, makes the testing personnel can be directly perceived according to the color development pipe colour and the scale change condition to judge the latent trouble that power equipment exists, has reached the effect of suggestion early warning;
the utility model discloses a set up the pressure value in the pressure sensor real-time supervision admission pipe, analog signal transmission that pressure sensor will sample gives the singlechip, carries out analysis processes back through the singlechip to the sampling signal that receives, and control solenoid valve's operating condition avoids flowing into the inside gas pressure of stainless steel body too big, causes the color rendering pipe to burst.
Drawings
FIG. 1 is a schematic view of the partial cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the appearance structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the stainless steel tube of the present invention;
fig. 4 is a schematic block diagram of the control circuit of the present invention.
In the figure: 1. a gas production joint; 2. a cavity; 3. a convex groove; 4. an air inlet pipe; 5. an electromagnetic valve; 51. an air inlet end; 52. an air outlet end; 6. a pressure sensor; 7. a battery; 8. a circuit board; 81. a control circuit; 82. a single chip microcomputer; 83. a power management module; 9. a fixed seat; 10. a first seal ring; 11. a fixed mount; 12. a second sealing ring 13, a stainless steel pipe body; 14. an observation window; 15. a color development tube; 16. a fixing plate; 17. a color-developing reagent; 18. reserving a port; 19. a cover plate; 20. and (7) installing the opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the color development early warning device for monitoring SF6 gas decomposition products of power equipment comprises a gas production joint 1 and a stainless steel pipe body 13, wherein a convex groove 3 is formed in the right side surface of the gas production joint 1, the stainless steel pipe body 13 is in threaded connection with the inside of the convex groove 3, and a color development pipe 15 is arranged inside the stainless steel pipe body 13;
referring to fig. 1, a cavity 2 is arranged inside the gas production connector 1, a through hole is formed in the middle of the left side surface of the cavity 2, a gas inlet pipe 4 is transversely arranged in the through hole, one end of the gas inlet pipe 4 extends into the cavity 2 through the through hole and is in threaded connection with a gas inlet end 51 of the electromagnetic valve 5, and a reserved opening 18 is formed in the other end of the gas inlet pipe 4;
referring to fig. 1, the electromagnetic valve 5 is disposed in the middle of the right side surface of the cavity 2, and the air outlet end 52 of the electromagnetic valve 5 penetrates through the right side surface of the cavity 2 and extends into the stainless steel tube 13;
referring to fig. 1, a pressure sensor 6 is arranged below the air inlet pipe 4, a probe of the pressure sensor 6 extends into the air inlet pipe 4, and the pressure sensor 6 is fixed on the left side surface of the cavity 2 through a fixing frame 11;
the inside of cavity 2 still is provided with battery 7 and circuit board 8, and battery 7 sets up the interior bottom surface at cavity 2, and circuit board 8 sets up the right flank side at battery 7, and fixes in cavity 2's right flank below.
Referring to fig. 2, a mounting port 20 is formed in the surface of the gas production connector 1, the mounting port 20 is communicated with the inside of the cavity 2, a cover plate 19 is arranged on the upper surface of the mounting port 20, the cover plate 19 is in snap-fit connection (not shown in the figure) with the mounting port 20, and the mounting port 20 and the cover plate 19 are arranged to facilitate installation and maintenance of devices inside the gas production connector 1 and replacement of batteries; the power starting switch is arranged on the left side surface (not shown in the figure) of the gas production joint 1.
Referring to fig. 3, the two groups of color developing tubes 15 are fixed inside the stainless steel tube body 13 through the fixing plate 16, the fixing plate 16 is made of silica gel and is in a shape of a circular sheet with holes on the surface, the outer diameter of the fixing plate is the same as the inner diameter of the stainless steel tube body 13, the fixing plate 16 is sleeved on the peripheries of the two groups of color developing tubes 15 through the holes on the surface to fix the color developing tubes 15, and the stainless steel tube body 13 is prevented from shaking and damaging the color developing tubes 15.
The reserved port 18 in this embodiment is used to connect a gas sampling port of an SF6 power device, so that a detected gas (the gas is a decomposition product of the SF6 gas) can enter the color development tube 15 inside the stainless steel tube body 13 through the gas production connector 1, and chemically react with a color reagent in the color development tube 15, and according to the change situation of the color and scale of the color development tube, whether the power device has a latent fault is judged, so as to achieve the effect of prompting and early warning.
The color development tubes 15 in this embodiment are transparent tubes made of high-hardness glass, and the two sets of color development tubes 15 are respectively filled with SO2And H2S is chemically reacted, and the decomposition product of SF6 contains SO2、H2S, etc. when entering into the gas and SO2After the color developing reagent reacts chemically, the color in the tube is changed from pink to brown, and the higher the concentration is, the higher the color change scale on the color developing tube is; when the gas and H enter2After the color developing reagent of the S reaction is subjected to chemical reaction, the color in the tube is changed from white to black, the higher the concentration is, the higher the color-changing scale on the color developing tube is, and a detector judges whether latent faults exist in the power equipment according to the observation of the color and scale change conditions of the color developing tube.
Referring to fig. 4, the control circuit 81 of the circuit board 8 includes a single chip 82 and a power management module 83, and the battery 7 supplies power to the single chip 82, the solenoid valve 5, and the pressure sensor 6 through the power management module 83.
The pressure sensor 6 in this embodiment is used for monitoring the pressure value that gets into in the intake pipe 4 from the reservation mouth 18, and pressure sensor 6 sends the analog signal that samples to the singlechip, carries out analysis processes to the sampling signal who receives through the singlechip and controls the operating condition of solenoid valve 5, avoids flowing into the inside gas pressure of stainless steel body 13 too big, causes the color tube 15 to burst.
Referring to fig. 1, a set of observation windows 14 is respectively disposed at one end of the outer wall of the stainless steel tube 13 corresponding to the color developing tube 15, and the observation windows 14 are used for observing the change of the color and the surface scale inside the corresponding color developing tube 15.
Referring to fig. 1, the electromagnetic valve 5 is fixed on the right side surface of the cavity 2 through a fixing seat 9, and two ends of the fixing seat 9 are fixed on the right side surface of the cavity 2 through screws.
Referring to fig. 1, a first sealing ring 10 is disposed at one end of a contact surface of the air inlet pipe 4 and the electromagnetic valve 5, the first sealing ring 10 is annular, and the first sealing ring 10 is disposed to ensure that gas does not leak when entering the electromagnetic valve 5.
Referring to fig. 1, a second sealing ring 12 is disposed between the bottom surface of the stainless steel pipe body 13 and the inner bottom surface of the convex groove 3, the second sealing ring 12 is annular, the second sealing ring 12 is sleeved on the periphery of the air outlet end 52 of the electromagnetic valve 5 and is tightly attached between the inner bottom surface of the convex groove 3 and the bottom surface of the stainless steel pipe body 3, and the second sealing ring 12 is disposed to ensure that air does not leak into the stainless steel pipe body 13.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A color development precaution device for monitoring SF6 gas decomposition products of power equipment, characterized by: the gas production pipe comprises a gas production joint (1) and a stainless steel pipe body (13), wherein a convex groove (3) is formed in the right side surface of the gas production joint (1), the stainless steel pipe body (13) is in threaded connection with the inside of the convex groove (3), and a color development pipe (15) is arranged inside the stainless steel pipe body (13);
a cavity (2) is arranged in the gas production joint (1), a through hole is formed in the middle of the left side face of the cavity (2), an air inlet pipe (4) is transversely arranged in the through hole, one end of the air inlet pipe (4) extends into the cavity (2) through the through hole and is in threaded connection with an air inlet end (51) of the electromagnetic valve (5), and a reserved opening (18) is formed in the other end of the air inlet pipe (4);
the electromagnetic valve (5) is arranged in the middle of the right side face of the cavity (2), and the air outlet end (52) of the electromagnetic valve (5) penetrates through the right side face of the cavity (2) and extends into the stainless steel pipe body (13);
a pressure sensor (6) is arranged below the air inlet pipe (4), a probe of the pressure sensor (6) extends into the air inlet pipe (4), and the pressure sensor (6) is fixed on the left side surface of the cavity (2) through a fixing frame (11);
the inside of cavity (2) still is provided with battery (7) and circuit board (8), battery (7) set up the interior bottom surface in cavity (2), circuit board (8) set up the right side below at battery (7), and fix in the right flank below of cavity (2).
2. The chromogenic precaution device of SF6 gas decomposition products for monitoring electric power equipment according to claim 1, characterized in that: the two groups of color development tubes (15) are respectively fixed inside the stainless steel tube body (13) through a fixing plate (16).
3. The chromogenic precaution device of SF6 gas decomposition products for monitoring electric power equipment according to claim 2, characterized in that: one end of the outer wall of the stainless steel pipe body (13), which corresponds to the color development pipe (15), is respectively provided with a group of observation windows (14).
4. The chromogenic precaution device of SF6 gas decomposition products for monitoring electric power equipment according to claim 1, characterized in that: the electromagnetic valve (5) is fixed on the right side face of the cavity (2) through a fixing seat (9), and two ends of the fixing seat (9) are fixed on the right side face of the cavity (2) through screws.
5. The chromogenic precaution device of SF6 gas decomposition products for monitoring electric power equipment according to claim 1, characterized in that: and a first sealing ring (10) is arranged at one end of the contact surface of the air inlet pipe (4) and the electromagnetic valve (5).
6. The chromogenic precaution device of SF6 gas decomposition products for monitoring electric power equipment according to claim 1, characterized in that: and a second sealing ring (12) is arranged between the bottom surface of the stainless steel pipe body (13) and the inner bottom surface of the convex groove (3), and the second sealing ring (12) is sleeved on the periphery of the air outlet end (52) of the electromagnetic valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120538335.4U CN214374320U (en) | 2021-03-15 | 2021-03-15 | Color development early warning device for monitoring SF6 gas decomposition products of power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120538335.4U CN214374320U (en) | 2021-03-15 | 2021-03-15 | Color development early warning device for monitoring SF6 gas decomposition products of power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214374320U true CN214374320U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120538335.4U Active CN214374320U (en) | 2021-03-15 | 2021-03-15 | Color development early warning device for monitoring SF6 gas decomposition products of power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214374320U (en) |
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2021
- 2021-03-15 CN CN202120538335.4U patent/CN214374320U/en active Active
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