CN204176030U - For the calibration valve of SF6 gas assembly apparatus - Google Patents
For the calibration valve of SF6 gas assembly apparatus Download PDFInfo
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- CN204176030U CN204176030U CN201420558532.2U CN201420558532U CN204176030U CN 204176030 U CN204176030 U CN 204176030U CN 201420558532 U CN201420558532 U CN 201420558532U CN 204176030 U CN204176030 U CN 204176030U
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Abstract
For the calibration valve of SF6 gas assembly apparatus, comprise inside there is the valve body of tubing type passage and be positioned at the valve ball of four-way crossing center, passage one in four passages, the orthogonal setting between two of passage two and passage three, passage two and passage four are arranged along same axis, the outer end of passage one and passage two is all connected with self-enclosed gas-charging connection by seal ring, and the self-enclosed gas-charging connection of passage one is provided with the contiguous block for installing gas density monitor, the self-enclosed gas-charging connection of passage two is provided with instrument connector, the outer end of passage three is provided with valve ball handle, the interface for being connected with the air chamber of high-tension switch gear is provided with in passage four.Self-enclosed gas-charging connection of the present utility model can ensure that SF6 gas can not be released into passage outside, and at dismounting extension instrument or when verifying gas density relay, and the SF6 gas in high-tension switch gear is not revealed.
Description
Technical field
The utility model relates to the calibration valve of high-voltage switch gear, is specifically related to a kind of calibration valve for SF6 gas assembly apparatus.
Background technique
High-voltage switch gear utilizes the SF6 sulfur hexafluoride gas with excellent insulation performance as the combined electrical apparatus of insulation and arc-extinguishing medium.Owing to being filled with the SF6 gas of certain pressure in high-tension switch gear, in order to equipment safety operation, accurate measurements need be carried out to SF6 gas in real time with instrument and apparatus, no matter be that the SF6 gas in high-voltage electrical equipment is monitored, still carry out the recovery of gas or supplement, all undertaken by an interface unique on high-tension apparatus, this interface is also known as calibration valve.At present, in high-voltage switch gear, verification operation for SF6 gas microwater device and SF6 gas density relay is very difficult, them are needed to verify after equipment dismounting again, practical operation is very loaded down with trivial details, and the sealability of high-voltage switch gear, moisture in SF6 gas all may cause potential safety hazard to high-voltage switch gear.Conventional universal valve body, not only structurally there is above-mentioned potential safety hazard, and working life is also lower, can not ensures the safe operation of electrical equipment, reduce the economic benefit of user.
Model utility content
The purpose of this utility model is to provide a kind of without the need to dismantling the calibration valve that can verify high-voltage switch gear, can realize, when closing calibration valve, verifying SF6 gas microwater device and SF6 gas density relay; When opening calibration valve, realize the normal operation of high-voltage switch gear.
The technological scheme that the utility model is adopted for achieving the above object is: for the calibration valve of SF6 gas assembly apparatus, comprise inside there is the valve body of tubing type passage and be positioned at the valve ball of four-way crossing center, passage one in valve inner four passages, the orthogonal setting between two of passage two and passage three, passage two and passage four are arranged along same axis, the outer end of passage one and passage two is all connected with self-enclosed gas-charging connection by seal ring, and the self-enclosed gas-charging connection of passage one is provided with the contiguous block for installing gas density monitor, the self-enclosed gas-charging connection of passage two is provided with and can carries out with extension instrument the instrument connector that is connected, the outer end of passage three is provided with the valve ball handle for manipulating valve ball, the interface for being connected with the air chamber of high-tension switch gear is provided with in passage four.
Described valve ball handle comprises the knob that valve seat, one end are connected with valve ball to control its valve rod rotated between the open and closed positions and be connected with valve rod.
Described self-enclosed gas-charging connection comprise inside be provided with through hole shell, be arranged in the push rod of through hole and be fixed on the pressing plate of through hole one end, this end of through hole is cone shape hole, the end of described push rod is connected on pressing plate by spring, and the end of push rod is the taper adapted with tapered bore profile, and the conical surface of push rod end is also provided with seal ring.
The bottom of described valve body is provided with the mounting hole for being arranged on high-tension switch gear.
The beneficial effects of the utility model: 1, this calibration valve is connected on high-tension switch gear, make valve ball in the closed position by driven valve bundle of spheres hand, the source of the gas of cutoff high switching device, and self-enclosed gas-charging connection can ensure that SF6 gas can not be released into passage outside, can at dismounting extension instrument or when verifying gas density relay, and the SF6 gas in high-tension switch gear is not revealed; When making valve ball in an open position by driven valve bundle of spheres hand, high-tension switch gear normally runs.
2, the self-enclosed gas-charging connection of passage two outer end setting; tonifying Qi can be ensured, measure micro-water and check-up gas density electrical relay after self-enclosed gas-charging connection automatically close; SF6 gas seal is made to obtain second protection; immediately calibration valve is not closed when gas density relay is changed; or can second protection be provided during misoperation; ensure that the SF6 gas of high-voltage switch gear can not be revealed, compared with prior art more safe and reliable.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the schematic internal view of Fig. 1;
Fig. 3 is the sectional view along A-A line in Fig. 1.
Reference character: 1, valve body, 2, passage one, 3, passage two, 4, passage three, 5, passage four, 6, valve ball, 7, valve ball handle, 70, valve seat, 71, valve rod, 72, knob, 8, self-enclosed gas-charging connection, 80, shell, 81, push rod, 82, pressing plate, 83, spring, 84, thimble block, 9, contiguous block, 10, instrument connector, 11, seal ring, 12, flange plate, 13, mounting hole.
Embodiment
For the calibration valve of SF6 gas assembly apparatus, as depicted in figs. 1 and 2, comprise inside and have the valve body 1 of tubing type passage and be positioned at the valve ball 6 at four channels intersect centers, the bottom of valve body 1 is provided with the mounting hole 13 for being arranged on high-tension switch gear.Passage 1, passage 23 and passage 34 orthogonal setting between two in inner four passages of valve body 1, passage 23 and passage 45 are arranged along same axis.
The outer end of passage 1 and passage 23 is all connected with self-enclosed gas-charging connection by seal ring, self-enclosed gas-charging connection as shown in Figure 2, comprise inside be provided with through hole shell 80, be arranged in the push rod 81 of through hole and be fixed on the pressing plate 82 of through hole one end, this end of through hole is cone shape hole, the end of described push rod 81 is connected on pressing plate 82 by spring 83, and the end of push rod 81 is the taper adapted with tapered bore profile, and the conical surface of push rod 81 end is also provided with seal ring.As shown in Figure 2, the self-enclosed gas-charging connection that valve body 1 upper end is arranged, one end is connected with gas density relay, the SF6 source of the gas chamber of the other end and high-tension switch gear; The self-enclosed gas-charging connection arranged on the left of valve body 1, one end is connected with extension instrument, and the interface of this end can customize according to the specific requirement of user, the SF6 source of the gas chamber of the other end and high-tension switch gear.When extension instrument and the dismounting of bulk density relay, because push rod 81 is by the effect of the spring 83 between push rod 81 and pressing plate 82, spring 83 resilience makes seal ring involution on push rod 81 at cone shape hole position, cuts off source of the gas, ensures that SF6 gas can not be revealed.
Wherein, as shown in Figure 2, the self-enclosed gas-charging connection of passage 1 is provided with the contiguous block 9 for installing gas density monitor, the self-enclosed gas-charging connection of passage 23 is provided with and can carries out with extension instrument the instrument connector 10 that is connected, is provided with the interface for being connected with the air chamber of high-tension switch gear in passage 45; As shown in Figure 3, the outer end of passage 34 is provided with the valve ball handle 7 for manipulating valve ball, valve ball handle 7 comprises the knob 72 that valve seat 70, one end are connected with valve ball 6 to control its valve rod 71 rotated between the open and closed positions and be connected with valve rod 71, valve ball handle 7 is also provided with Warning board and direction of operating Pointing sign board.
Passage 45 in Fig. 2 is connected with high-tension switch gear; valve ball 6 is passed through at check-up gas density electrical relay with when measuring micro-water; utilize the position that knob 72 rotation direction is closed; the source of the gas of cutoff high switching device; under the protective action of valve seat 70 and seal ring, valve rod 71 is seesawed carry out the SF6 gas of sealed high pressure switching device.Self-enclosed gas-charging connection above Fig. 2 utilizes thimble block 84, attachment hole 9 and seal ring installing gas density monitor; under the effect of spring 83; source of the gas is made to connect gas density relay; during replacing gas density relay, self-enclosed gas-charging connection is closed automatically, thus protection makes SF6 gas not to outward leakage.Self-enclosed gas-charging connection on the left of Fig. 2, under the effect of spring 83, tonifying Qi, measure micro-water and verification density monitor after automatically close, flange plate is being covered, thus is realizing second protection, making SF6 gas seal more reliable, not to outward leakage.After measurement SF6 gas micro water content and check-up gas density electrical relay, the position that knob 72 rotation direction is opened, high-tension switch gear is normally run.
Claims (4)
1. for the calibration valve of SF6 gas assembly apparatus, it is characterized in that: comprise inside and there is the valve body (1) of tubing type passage and be positioned at the valve ball (6) of four-way crossing center, passage one (2) in inner four passages of valve body (1), passage two (3) and passage three (4) orthogonal setting between two, passage two (3) and passage four (5) are arranged along same axis, the outer end of passage one (2) and passage two (3) is all connected with self-enclosed gas-charging connection by seal ring, and the self-enclosed gas-charging connection of passage one (2) is provided with the contiguous block (9) for installing gas density monitor, the self-enclosed gas-charging connection of passage two (3) is provided with and can carries out with extension instrument the instrument connector (10) that is connected, the outer end of passage three (4) is provided with the valve ball handle (7) for manipulating valve ball, the interface for being connected with the air chamber of high-tension switch gear is provided with in passage four (5).
2. the calibration valve for SF6 gas assembly apparatus according to claim 1, is characterized in that: described valve ball handle (7) comprises the knob (72) that valve seat (70), one end are connected with valve ball (6) to control its valve rod rotated between the open and closed positions (71) and be connected with valve rod (71).
3. the calibration valve for SF6 gas assembly apparatus according to claim 1, it is characterized in that: described self-enclosed gas-charging connection comprise inside be provided with through hole shell (80), be arranged in the push rod (81) of through hole and be fixed on the pressing plate (82) of through hole one end, this end of through hole is cone shape hole, the end of described push rod (81) is connected on pressing plate (82) by spring (83), and the end of push rod (81) is the taper adapted with tapered bore profile, and the conical surface of push rod (81) end is also provided with seal ring.
4. the calibration valve for SF6 gas assembly apparatus according to claim 1, is characterized in that: the bottom of described valve body (1) is provided with the mounting hole (13) for being arranged on high-tension switch gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558532.2U CN204176030U (en) | 2014-09-26 | 2014-09-26 | For the calibration valve of SF6 gas assembly apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558532.2U CN204176030U (en) | 2014-09-26 | 2014-09-26 | For the calibration valve of SF6 gas assembly apparatus |
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| Publication Number | Publication Date |
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| CN204176030U true CN204176030U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420558532.2U Active CN204176030U (en) | 2014-09-26 | 2014-09-26 | For the calibration valve of SF6 gas assembly apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587867A (en) * | 2015-05-14 | 2016-05-18 | 马红杰 | Plunger valve for electric meter calibration |
| CN106122525A (en) * | 2016-06-24 | 2016-11-16 | 广州白云电器设备股份有限公司 | A kind of inflation valve seat that can be used for online calibration |
| CN107178631A (en) * | 2017-06-05 | 2017-09-19 | 青岛林川工程技术咨询有限公司 | A kind of device of self-closed prestressed pore passage |
| WO2021218285A1 (en) * | 2020-04-29 | 2021-11-04 | 上海乐研电气有限公司 | Gas density relay capable of intelligently monitoring whole life cycle and implementation method therefor |
-
2014
- 2014-09-26 CN CN201420558532.2U patent/CN204176030U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587867A (en) * | 2015-05-14 | 2016-05-18 | 马红杰 | Plunger valve for electric meter calibration |
| CN105587867B (en) * | 2015-05-14 | 2019-07-02 | 南京弘峰电气有限公司 | A kind of electric power calibration plunger valve |
| CN106122525A (en) * | 2016-06-24 | 2016-11-16 | 广州白云电器设备股份有限公司 | A kind of inflation valve seat that can be used for online calibration |
| CN107178631A (en) * | 2017-06-05 | 2017-09-19 | 青岛林川工程技术咨询有限公司 | A kind of device of self-closed prestressed pore passage |
| CN107178631B (en) * | 2017-06-05 | 2022-09-06 | 中交第四公路工程局有限公司 | Device for automatically sealing prestressed duct |
| WO2021218285A1 (en) * | 2020-04-29 | 2021-11-04 | 上海乐研电气有限公司 | Gas density relay capable of intelligently monitoring whole life cycle and implementation method therefor |
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| GR01 | Patent grant |