CN200969264Y - Automatic pressure relief protecting device for oil loop internal cycle - Google Patents
Automatic pressure relief protecting device for oil loop internal cycle Download PDFInfo
- Publication number
- CN200969264Y CN200969264Y CN 200620106078 CN200620106078U CN200969264Y CN 200969264 Y CN200969264 Y CN 200969264Y CN 200620106078 CN200620106078 CN 200620106078 CN 200620106078 U CN200620106078 U CN 200620106078U CN 200969264 Y CN200969264 Y CN 200969264Y
- Authority
- CN
- China
- Prior art keywords
- oil
- pipe
- relief tube
- pressure
- steel ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
The utility model relates to a safety protection device, especially is an oil circuit inner circulation automatic pressure discharging protection equipment. The existing technology has defects of unsafe using and easy damage of the equipment. The utility model including a filtering pipe, an oil inlet tube and an oil outlet tube which are connected with the filtering pipe, and an oil pump arranged on the pipe, is characterized in that a pressure discharging pipe is arranged between the oil inlet pipe and the oil outlet pipe, a pressure discharging device controlling the passing and breaking of the pressure discharging pipe according to the oil pressure in the pipe is arranged in the pressure discharging pipe. The utility model can automatically discharge pressure according to the preset value, reduce pressure and prevent explosion, ensure the safety and reliability of the equipment, avoid the hurt to persons.
Description
[technical field]
The utility model relates to a kind of safety features, circulation releasing pressure automatically protection equipment in especially a kind of oil return line.
[background technology]
In transformer on-load voltage regulating shunting switch insulating oil on-line filtration system, be provided with special-purpose oil strain pipeline.In actual use, close or stop up, and at this moment the oil pump electic protection in the system is malfunctioning in case flowline occurs; in the time of can't making oil pump out of service; the system oil circuit pressure can continue to increase, and finally easily causes oil pipe line or the blast of oil tube, and causes device damage or personal injury.
[utility model content]
In order to overcome the above-mentioned defective that exists in the prior art, the utility model provides circulation releasing pressure automatically protection equipment in a kind of oil return line, to reach releasing pressure automatically, assurance equipment, purpose safe in utilization.
For this reason; the utility model is by the following technical solutions: circulation releasing pressure automatically protection equipment in the oil return line; comprise filter cylinder, the inflow pipeline that links to each other with filter cylinder and flowline; and be located at oil pump on the pipeline; it is characterized in that: be provided with the relief tube that is communicated with above-mentioned two pipelines between described inflow pipeline and the flowline, be provided with the pressure relief device of controlling the relief tube break-make according to oil pressure in the pipeline in the relief tube.In the oil filtering unit course of work, under the normal condition, relief tube is in off state, if oil pipe is closed or stopped up, oil return line pressure increases, in case this pressure exceeds preset value, then the pressure relief device action is opened relief tube, and inflow pipeline and flowline directly are communicated with, form inner loop, decompression explosion-proof is convenient to wait for that the related personnel carries out maintenance process, and assurance equipment is safe in utilization, reliable.
Described pressure relief device comprises the steel ball be located in the relief tube and provides the spring of restraining force, described relief tube lower end to be provided with to support the interior receipts portion of steel ball to steel ball, and described diameter of the steel ball less than the relief tube internal diameter and greater than interior receipts subordinate port directly.Like this, when oil pressure during greater than the summation of spring force and steel ball gravity, steel ball is by jack-up, the relief tube conducting.
Described spring is connected on the relief tube by the endoporus screw rod, and the spring lower end links to each other with steel ball, and reliable in structure is easy to connect.
Receipts portion is a sphere base in described, can be good fit with steel ball.
The beneficial effects of the utility model are: can press the preset value releasing pressure automatically, and decompression explosion-proof, the equipment that guaranteed is safe in utilization, reliable, avoids causing personal injury.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
[embodiment]
Circulation releasing pressure automatically protection equipment in the oil return line as shown in Figure 1, inflow pipeline 1 and flowline 2 are connected on the filter cylinder 5, are provided with filter core 6 in the filter cylinder.Oil pump 3 also is installed on the pipeline, and oil pump 3 is connected with Oil pump electrical machinery 4.Relief tube 11 is connected between inflow pipeline 1 and the flowline 2, and relief tube 11 upper ends are equipped with endoporus screw rod 9, and endoporus screw rod 9 connects steel balls 7 by spring 8, steel ball 7 by bearing on sphere base 10.The diameter of steel ball 7 less than relief tube 11 internal diameters greater than sphere base 10 lower port diameters.
In the oil filtering unit course of work, under the normal condition, relief tube is in off state, if oil pipe closes or stop up, oil return line pressure increases, in case when this pressure exceeds the summation (preset value) of spring force and steel ball gravity, steel ball is by jack-up, the relief tube conducting directly is communicated with inflow pipeline and flowline, and oil circuit forms inner loop.
Claims (4)
1, circulation releasing pressure automatically protection equipment in the oil return line; comprise filter cylinder, the inflow pipeline that links to each other with filter cylinder and flowline; and be located at oil pump on the pipeline; it is characterized in that: be provided with the relief tube that is communicated with above-mentioned two pipelines between described inflow pipeline and the flowline, be provided with the pressure relief device of controlling the relief tube break-make according to oil pressure in the pipeline in the relief tube.
2, circulation releasing pressure automatically protection equipment in the oil return line according to claim 1; it is characterized in that: described pressure relief device comprises the spring of being located at the steel ball in the relief tube and restraining force being provided to steel ball; described relief tube lower end is provided with the interior receipts portion that supports steel ball, and described diameter of the steel ball less than the relief tube internal diameter and greater than interior receipts subordinate port directly.
3, circulation releasing pressure automatically protection equipment in the oil return line according to claim 2, it is characterized in that: described spring is connected on the relief tube by the endoporus screw rod, and the spring lower end links to each other with steel ball.
4, according to circulation releasing pressure automatically protection equipment in claim 2 or the 3 described oil return lines, it is characterized in that: receipts portion is a sphere base in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106078 CN200969264Y (en) | 2006-07-27 | 2006-07-27 | Automatic pressure relief protecting device for oil loop internal cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106078 CN200969264Y (en) | 2006-07-27 | 2006-07-27 | Automatic pressure relief protecting device for oil loop internal cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200969264Y true CN200969264Y (en) | 2007-10-31 |
Family
ID=38968838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620106078 Expired - Lifetime CN200969264Y (en) | 2006-07-27 | 2006-07-27 | Automatic pressure relief protecting device for oil loop internal cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200969264Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200221A (en) * | 2011-05-13 | 2011-09-28 | 云南大红山管道有限公司 | Pipeline decompression and liquid drainage device and mounting method thereof |
| CN104373341A (en) * | 2014-11-05 | 2015-02-25 | 广州达意隆包装机械股份有限公司 | Overpressure protection device of positive displacement pump |
| CN105914060A (en) * | 2016-05-10 | 2016-08-31 | 国网山东省电力公司聊城供电公司 | Breaker hydraulic mechanism automatic gas relief device |
| CN106895588A (en) * | 2017-02-22 | 2017-06-27 | 合肥舒实工贸有限公司 | A kind of water heater pressure control device |
| CN109065324A (en) * | 2018-08-07 | 2018-12-21 | 盛世瑶兰（深圳）科技有限公司 | A kind of convertible firebreak device of transformer |
| CN113555191A (en) * | 2021-06-03 | 2021-10-26 | 夏周阳 | Floating oil-immersed transformer with superposed oil pipes |
-
2006
- 2006-07-27 CN CN 200620106078 patent/CN200969264Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200221A (en) * | 2011-05-13 | 2011-09-28 | 云南大红山管道有限公司 | Pipeline decompression and liquid drainage device and mounting method thereof |
| CN104373341A (en) * | 2014-11-05 | 2015-02-25 | 广州达意隆包装机械股份有限公司 | Overpressure protection device of positive displacement pump |
| CN105914060A (en) * | 2016-05-10 | 2016-08-31 | 国网山东省电力公司聊城供电公司 | Breaker hydraulic mechanism automatic gas relief device |
| CN106895588A (en) * | 2017-02-22 | 2017-06-27 | 合肥舒实工贸有限公司 | A kind of water heater pressure control device |
| CN109065324A (en) * | 2018-08-07 | 2018-12-21 | 盛世瑶兰（深圳）科技有限公司 | A kind of convertible firebreak device of transformer |
| CN113555191A (en) * | 2021-06-03 | 2021-10-26 | 夏周阳 | Floating oil-immersed transformer with superposed oil pipes |
| CN113555191B (en) * | 2021-06-03 | 2022-10-11 | 娄底乐立保电力科技有限公司 | Floating oil-immersed transformer with superposed oil pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071031 |
|
| EXPY | Termination of patent right or utility model |