CN213638519U - Micro-water density sensor for SF6 online micro-water density monitoring system - Google Patents
Micro-water density sensor for SF6 online micro-water density monitoring system Download PDFInfo
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- CN213638519U CN213638519U CN202022860290.0U CN202022860290U CN213638519U CN 213638519 U CN213638519 U CN 213638519U CN 202022860290 U CN202022860290 U CN 202022860290U CN 213638519 U CN213638519 U CN 213638519U
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Abstract
The utility model discloses a micro-water density sensor for an SF6 online micro-water density monitoring system, which comprises a three-way base, a self-sealing air supplement valve, a thimble air inlet valve and a transmitter, wherein the self-sealing air supplement valve and the thimble air inlet valve are radially and symmetrically arranged at two sides of the three-way base, and the self-sealing air supplement valve and the thimble air inlet valve are both communicated with an air chamber of the three-way base; a tapered hole which is coaxially arranged with the threaded hole is processed on one side surface of the three-way base connected with the transmitter; the upper threaded connection base of the transmitter is provided with a sleeve connection part, the lower section of the sleeve connection part is a cylindrical section, and the upper section of the sleeve connection part is a regular hexagon section; after the threaded part of the threaded connection base on the transmitter is screwed into the threaded hole, the lower edge of the cylinder section of the sleeve connection part is connected with the conical hole by adopting a conical surface. The utility model discloses the changer installation is firm for the changer is difficult for taking place not hard up when vibrations, changer dismouting replacement and changer dismouting easy maintenance in addition.
Description
Technical Field
The utility model relates to a little water density monitoring system of SF6 online, more specifically say, relate to a little water density sensor is used to little water density monitoring system of SF6 online.
Background
Sulfur hexafluoride gas has stable physical and chemical properties, excellent insulating properties and excellent arc extinguishing properties, and is widely used in high-voltage electrical equipment. However, when sulfur hexafluoride electrical equipment is in operation, the phenomenon that sulfur hexafluoride gas in the electrical equipment leaks outwards to cause density reduction inevitably occurs. While sulfur hexafluoride gas leaks, moisture outside the electrical equipment can also permeate into the electrical equipment, so that the micro-water content in the sulfur hexafluoride gas in the equipment is increased. When the micro water content in sulfur hexafluoride gas is too high, potential safety hazards exist in the operation of high-voltage electrical equipment.
In order to solve the problems and realize online monitoring of changes of SF6 gas humidity and density, the conventional SF6 micro-water density online monitoring system comprises a plurality of SF6 gas micro-water density sensors, the SF6 gas micro-water density sensors are correspondingly installed at reserved interfaces of density relays on a GIS (geographic information system) transformer substation, RS485 communication cables on the plurality of SF6 gas micro-water density sensors are connected with a concentrator, and the concentrator is connected with an optical fiber converter; the optical fiber converter is connected with the optical fiber concentrator through optical fibers; the optical fiber concentrator is connected with the optical fiber terminal box; and the optical fiber terminal box is connected with the industrial personal computer.
The SF6 gas micro-water density sensor comprises a three-way base, a self-sealing air compensating valve, a thimble air inlet valve and a transmitter, wherein the self-sealing air compensating valve and the thimble air inlet valve are radially and symmetrically arranged on two sides of the three-way base, the self-sealing air compensating valve and the thimble air inlet valve are communicated with an air chamber of the three-way base, the transmitter is in threaded connection with the three-way base, and the top of the transmitter is provided with an electrical connector. In order to prevent that the changer from taking place not hard up when vibrations, changer scribbles fastening thread glue with tee bend base threaded connection's place, not only makes changer and tee bend base threaded connection fastening and also need sealed effect after scribbling fastening thread glue, nevertheless because dismantle the downthehole remaining fastening thread glue of threaded hole of back tee bend base, be unfavorable for new changer installation, current changer shell is mostly a body structure in addition, also does not benefit to the changer and repairs the reuse.
Disclosure of Invention
1. Technical problem to be solved by the utility model
An object of the utility model is to provide a little water density sensor is used to little water density monitoring system of SF6 online, adopts the technical scheme of the utility model, simple structure, design benefit, the changer installation is firm for the changer is difficult for taking place not hard up when vibrations, changer dismouting replacement and changer dismouting easy maintenance in addition.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a little water density sensor for SF6 online little water density monitoring system, including tee bend base, self-sealing gulp valve, thimble admission valve and changer, self-sealing gulp valve and thimble admission valve radially symmetrical set up in the both sides of tee bend base, and self-sealing gulp valve and thimble admission valve all communicate with the air chamber of tee bend base; a tapered hole which is coaxially arranged with the threaded hole is processed on one side surface of the three-way base connected with the transmitter; the transmitter upper threaded connection base is provided with a sleeve connection part, the lower section of the sleeve connection part is a cylindrical section, and the upper section of the sleeve connection part is a regular hexagon section; after the threaded part of the threaded connection base on the transmitter is screwed into the threaded hole, the lower edge of the cylindrical section of the sleeve connection part is connected with the tapered hole by adopting a conical surface, and the fastening surface of the threaded part of the threaded connection base is provided with backstop teeth.
Furthermore, the shell of the transmitter comprises a threaded connection base, a sleeve, a top cover and an electric connector fixedly arranged on the top cover in a threaded manner, wherein the threaded connection base comprises a threaded portion and a sleeve connection portion, a regular hexagonal hole is processed in the sleeve connection portion, and first screw holes penetrating through the side faces of the regular hexagonal hole are processed in six side faces of a regular hexagonal section of the sleeve connection portion; the lower end of the sleeve is provided with a regular hexagon plugging part which is plugged with the regular hexagon hole, and six side surfaces of the regular hexagon plugging part are respectively provided with a second screw hole which is connected with the first screw hole; the upper end of the sleeve is provided with a regular hexagon mounting groove matched with the top cover, and the upper end of the sleeve is provided with a third screw hole penetrating through the regular hexagon mounting groove; and screw holes four connected with the screw holes three are processed on six side surfaces of the top cover.
Furthermore, a receding groove which enables the three-way base to be connected with the transmitter more tightly is processed at the bottom of the tapered hole.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:
(1) the utility model discloses a little water density sensor for SF6 online little water density monitoring system, after the screw thread portion of threaded connection base on its changer twists the screw hole, adopt the conical surface to be connected between the bell mouth and the lower border of the muffjoint portion of threaded connection base on the changer, it is closely firm to connect between changer and the tee bend base, can prevent that the changer from taking place to become flexible when shaking, and use outside appurtenance cover to establish and rotate outside appurtenance after the regular hexagon section, make things convenient for changer fastening installation and dismantlement replacement;
(2) the utility model discloses a little water density sensor for SF6 online little water density monitoring system, regular hexagon hole has been processed to its sleeve connecting portion inside, all process the screw hole one that runs through regular hexagon hole side on six sides of the regular hexagon section of sleeve connecting portion, the lower extreme of sleeve is provided with the regular hexagon grafting portion of pegging graft with above-mentioned regular hexagon hole, all process the screw hole two that is connected with above-mentioned screw hole one on six sides of this regular hexagon grafting portion, utilize regular hexagon structure to make things convenient for the alignment of screw hole one and screw hole two after the sleeve is pegged graft with the sleeve connecting portion, make the dismouting more convenient;
(3) the utility model discloses a little water density sensor for SF6 online little water density monitoring system, its telescopic upper end is provided with the regular hexagon mounting groove that matches with above-mentioned top cap, and the telescopic upper end processing has the screw hole three that runs through regular hexagon mounting groove, all processes the screw hole four that is connected with above-mentioned screw hole three on six sides of top cap, the top cap utilizes regular hexagon structure to make things convenient for the alignment of screw hole three and screw hole four after installing in regular hexagon mounting groove, make the dismouting more convenient;
(4) the utility model discloses a little water density sensor is used to little water density monitoring system of SF6 on line, the shell of its changer designs into mosaic structure, and easy to assemble and split maintenance reuse after convenient maintenance avoids damaging the new changer of back direct replacement.
Drawings
Fig. 1 is a schematic structural diagram of a micro water density sensor for an SF6 on-line micro water density monitoring system according to the present invention;
fig. 2 is an exploded view of a transmitter housing in a micro water density sensor for an SF6 online micro water density monitoring system according to the present invention.
The reference numerals in the schematic drawings illustrate: 1. a three-way base; 2. a self-sealing air compensating valve; 3. a thimble air inlet valve; 4. a transmitter; 4-1, connecting the base by screw threads; 4-1-1, a sleeve connection part; 4-1-2, a threaded portion; 4-1-3, regular hexagonal holes; 4-1-4, a first screw hole; 4-2, sleeve; 4-2-1, a regular hexagon socket part; 4-2-2 and a screw hole II; 4-2-3, mounting a groove in a regular hexagon shape; 4-2-4, and a third screw hole; 4-3, a top cover; 4-3-1 and a screw hole IV; 4-4, and an electrical connector.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Examples
With reference to fig. 1, the micro water density sensor for the SF6 online micro water density monitoring system of the present embodiment includes a three-way base 1, a self-sealing air compensating valve 2, a thimble air inlet valve 3 and a transmitter 4, wherein the self-sealing air compensating valve 2 and the thimble air inlet valve 3 are radially and symmetrically disposed at two sides of the three-way base 1, and the self-sealing air compensating valve 2 and the thimble air inlet valve 3 are both communicated with an air chamber of the three-way base 1; a tapered hole which is coaxial with the threaded hole is processed on one side surface of the three-way base 1 connected with the transmitter, after a threaded part 4-1-2 of the transmitter upper threaded connection base 4-1 is screwed into the threaded hole, the lower edge of a cylindrical body section of the sleeve connection part 4-1-1 is connected with the tapered hole by a conical surface, after the threaded part 4-1-2 of the transmitter is screwed into the threaded hole, the lower edge of the cylindrical body section of the sleeve connection part 4-1-1 is in fit connection with the conical surface of the tapered hole, so that the transmitter and the three-way base are connected tightly and stably, the transmitter can be prevented from loosening during vibration, the transmitter upper threaded connection base 4-1 of the transmitter 4 is provided with the sleeve connection part 4-1-1, the lower section of the sleeve connection part 4-1-1 is a cylindrical body section, and the upper section, the external auxiliary tool is sleeved on the regular hexagon section and then rotated, so that the transmitter is convenient to fasten, mount, dismount and replace; a receding groove which enables the three-way base 1 and the transmitter 4 to be connected more tightly is processed at the bottom of the tapered hole, so that after the three-way base 1 and the transmitter 4 are connected in a conical surface matching manner, force can be continuously applied to enable the cylindrical section of the transmitter 4 to be continuously compressed towards the tapered hole, and the receding groove just provides an operating space for the transmitter 4 to be continuously compressed; in addition, in order to find the loosening and reversion of the transmitter in time, a marking line marked by a mark pen is arranged on one side surface of the three-way base 1 connected with the transmitter 4; and an alignment line marked by a mark pen and arranged in alignment with the marking line is arranged on the outer side surface of the sleeve connecting part 4-1-1 of the transmitter.
Continuing and combining with FIG. 2, the shell of the transmitter 4 comprises a threaded connection base 4-1, a sleeve 4-2, a top cover 4-3 and an electrical connector 4-4 fixedly arranged on the top cover 4-3 in a threaded manner, the threaded connection base 4-1 comprises a threaded portion 4-1-2 and a sleeve connection portion 4-1-1, a regular hexagonal hole 4-1-3 is processed inside the sleeve connection portion 4-1-1, and six side faces of a regular hexagonal section of the sleeve connection portion 4-1-1 are respectively processed with a screw hole 1-4 penetrating through the side face of the regular hexagonal hole 4-1-3; the lower end of the sleeve 4-2 is provided with a regular hexagon plugging part 4-2-1 which is plugged with the regular hexagon hole 4-1-3, six side surfaces of the regular hexagon plugging part 4-2-1 are respectively provided with a screw hole II 4-2-2 which is connected with the screw hole I4-1-4, and the regular hexagon structure is utilized to facilitate the alignment of the screw hole I and the screw hole II after the sleeve is plugged with the sleeve connecting part, so that the disassembly and the assembly are more convenient; the upper end of the sleeve 4-2 is provided with a regular hexagon mounting groove 4-2-3 matched with the top cover 4-3, and the upper end of the sleeve 4-2 is provided with a screw hole III 4-2-4 penetrating through the regular hexagon mounting groove 4-2-3; screw holes four 4-3-1 connected with the screw holes three 4-2-4 are processed on six side faces of the top cover 4-3, and the top cover is installed on the regular hexagon installation groove and then is aligned with the screw holes three and four through the regular hexagon structure, so that the dismounting is more convenient.
The utility model discloses a little water density sensor is used to little water density monitoring system of SF6 on line, simple structure, design benefit, the changer installation is firm for the changer is difficult for taking place not hard up when vibrations, changer dismouting replacement and changer dismouting easy maintenance in addition.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (3)
1. A micro-water density sensor for an SF6 online micro-water density monitoring system comprises a three-way base (1), a self-sealing air compensating valve (2), a thimble air inlet valve (3) and a transmitter (4), wherein the self-sealing air compensating valve (2) and the thimble air inlet valve (3) are radially and symmetrically arranged on two sides of the three-way base (1), and the self-sealing air compensating valve (2) and the thimble air inlet valve (3) are both communicated with an air chamber of the three-way base (1); the method is characterized in that: a tapered hole which is coaxially arranged with the threaded hole is processed on one side surface of the three-way base (1) connected with the transmitter, the transmitter (4) is provided with a sleeve connecting part (4-1-1) in a threaded connection base (4-1), the lower section of the sleeve connecting part (4-1-1) is a cylindrical section, and the upper section of the sleeve connecting part (4-1-1) is a regular hexagon section; after the threaded part of the threaded connection base (4-1) on the transmitter is screwed into the threaded hole, the lower edge of the cylindrical section of the sleeve connection part (4-1-1) is connected with the conical hole by adopting a conical surface.
2. The micro water density sensor for the SF6 on-line micro water density monitoring system of claim 1, wherein: the shell of the transmitter (4) comprises a threaded connection base (4-1), a sleeve (4-2), a top cover (4-3) and an electrical connector (4-4) fixedly arranged on the top cover (4-3) in a threaded manner, the threaded connection base (4-1) comprises a threaded portion (4-1-2) and a sleeve connection portion (4-1-1), a regular hexagonal hole (4-1-3) is machined in the sleeve connection portion (4-1-1), and first screw holes (4-1-4) penetrating through the side faces of the regular hexagonal hole (4-1-3) are machined in six side faces of a regular hexagonal section of the sleeve connection portion (4-1-1); the lower end of the sleeve (4-2) is provided with a regular hexagonal inserting part (4-2-1) which is inserted into the regular hexagonal hole (4-1-3), and six side surfaces of the regular hexagonal inserting part (4-2-1) are respectively provided with a second screw hole (4-2-2) which is connected with the first screw hole (4-1-4); the upper end of the sleeve (4-2) is provided with a regular hexagon mounting groove (4-2-3) matched with the top cover (4-3), and the upper end of the sleeve (4-2) is provided with a screw hole III (4-2-4) penetrating through the regular hexagon mounting groove (4-2-3); and screw holes four (4-3-1) connected with the screw holes three (4-2-4) are processed on six side surfaces of the top cover (4-3).
3. The micro water density sensor for the SF6 on-line micro water density monitoring system of claim 1, wherein: the tank bottom processing of bell mouth have and make tee bend base (1) and changer (4) be connected more closely and retreat the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022860290.0U CN213638519U (en) | 2020-12-02 | 2020-12-02 | Micro-water density sensor for SF6 online micro-water density monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022860290.0U CN213638519U (en) | 2020-12-02 | 2020-12-02 | Micro-water density sensor for SF6 online micro-water density monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213638519U true CN213638519U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022860290.0U Active CN213638519U (en) | 2020-12-02 | 2020-12-02 | Micro-water density sensor for SF6 online micro-water density monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213638519U (en) |
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2020
- 2020-12-02 CN CN202022860290.0U patent/CN213638519U/en active Active
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