CN202796331U - Load tap changer oil filter - Google Patents
Load tap changer oil filter Download PDFInfo
- Publication number
- CN202796331U CN202796331U CN 201220398172 CN201220398172U CN202796331U CN 202796331 U CN202796331 U CN 202796331U CN 201220398172 CN201220398172 CN 201220398172 CN 201220398172 U CN201220398172 U CN 201220398172U CN 202796331 U CN202796331 U CN 202796331U
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- CN
- China
- Prior art keywords
- oil
- filter
- tap changer
- load tap
- conducting pipeline
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- 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 - Fee Related
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Abstract
The utility model provides a load tap changer oil filter. The load tap changer oil filter comprises an oil pump, an impurity filter and a dewatering filter, wherein the oil pump, the impurity filter and the dewatering filter are sequentially connected according to a flow direction of switch oil. The dewatering filter is of a tabulate metal heat conducting pipeline, an upper wall of the metal heat conducting pipeline is provided with an open-type notch, and the notch is sealed by a semi-permeable membrane which is water-permeable and air-permeable, but oil-proof. The inside of a lower wall of the metal heat conducting pipeline is provided with a hot end heat exchanger of a heat pump system. Lower reaches of the metal heat conducting pipeline is provided with a cold end heat exchanger and a flow-limiting valve of the heat pump system. The load tap changer oil filter can effectively eliminate moisture in the switch oil.
Description
Technical field
The utility model relates to the oil filtering unit field, especially, is a kind of oil filter on load tap changer.
Background technology
The on load tap changer oil filter is to switch in the grease chamber in order to solve on-load voltage regulating switch, because arcing, insulating oil very easily decomposes, wears out and produces a large amount of free carbons and metal fragment etc., causes insulating oil breakdown voltage to reduce, the product of dielectric property variation the problems referred to above research and development.It is mainly used in the filtration of transformer on-load tap changer insulating oil.Equipment can be in the situation of the normal operation of transformer, switch instances automatic on-line oil strain according to tap changer, effectively remove free carbon, moisture, cracking impurity and acid in the oil, recover dielectric strength and the performance of tap switch oil, improve on load tap changer Operation safety, reliability, greatly reduce the transformer frequency of power cut, improve power supply reliability.
Most of on load tap changer oil filters by the oil strain operation can will be suspended in carbon granules in the oil and metal fragment etc. carry out filtering, also can reduce the content of the little water of part, but moisture can not be carried out filtering thoroughly, the existence of moisture, the insulating properties of oil is reduced greatly, jeopardize the safe operation of equipment, therefore, how a kind of reliable water removal device is provided also is very important.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of on load tap changer oil filter, and this oil filter can effectively be removed the moisture in the circuit-breaker oil.
The technical scheme that its technical problem that solves the utility model adopts is:
To press the flow direction of circuit-breaker oil sequentially continuous by oil pump, contaminant filter and except water filter for this on load tap changer oil filter, described except water filter be a flat metal heat-conducting pipeline, the upper wall of described metal heat-conducting pipeline is provided with the open type breach, described breach is the permeable and oil-resisting pellicle sealing of air by one, be provided with heating plate in the lower wall of described metal heat-conducting pipeline, the downstream of described metal heat-conducting pipeline is provided with fin and flow-limiting valve.
As preferably, only heating plate and fin are replaced respectively hot end heat exchanger and the cool end heat exchanger of corresponding heat pump, described cool end heat exchanger and hot end heat exchanger are connected with heat pump.
As preferably, the described metal heat-conducting pipeline up and down distance between the wall is between the 2mm to 5mm.
As preferably, described flow-limiting valve is adjustable flow-limiting valve.
The utility model has the advantage of:
After oil pump pumps into contaminant filter with circuit-breaker oil, circuit-breaker oil enters except water filter, circuit-breaker oil is heated rapidly, moisture in the circuit-breaker oil flashes to gaseous state, because except the water filter downstream is provided with flow-limiting valve, so vaporous water and some other gas mixture are being discharged through pellicle except after being squeezed in the water filter, thereby reached the purpose of moisture in the thorough removal circuit-breaker oil.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model on load tap changer oil filter.
Fig. 2 is that Fig. 1 embodiment is except the cross-sectional view of water filter.
Among the figure: 1, oil pump; 2, contaminant filter; 3, except water filter; 31, pellicle; 4, heat pump; 41, hot end heat exchanger; 42, cool end heat exchanger; 5, flow-limiting valve.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
Figure 1 shows that the planform schematic diagram of an embodiment of this on load tap changer oil filter, Fig. 2 is that Fig. 1 embodiment is except the cross-sectional view of water filter, problem is now set forth as same embodiment Fig. 1, Fig. 2 to the utility model for convenience of explanation.
In the present embodiment, this on load tap changer oil filter is by oil pump 1, contaminant filter 2 and except water filter 3 to press the flow direction of circuit-breaker oil sequentially continuous, described except water filter 3 be a flat metal heat-conducting pipeline, the upper wall of described metal heat-conducting pipeline is provided with the open type breach, described breach is permeable and oil-resisting pellicle 31 sealings of air by one, the hot end heat exchanger 41 of one heat pump is set in the lower wall of described metal heat-conducting pipeline, the downstream of described metal heat-conducting pipeline is provided with cool end heat exchanger 42 and the flow-limiting valve 5 of heat pump, and described cool end heat exchanger 42 and hot end heat exchanger 41 are connected with heat pump 4.
Heat and dispel the heat with heat pump 4 and saved greatly electric energy.
Above-mentioned on load tap changer oil filter, described metal heat-conducting the pipeline up and down distance between the wall are between the 2mm to 5mm, and the distance between the upper lower wall is controlled in the less distance, can increase the efficient that dewaters.
Above-mentioned on load tap changer oil filter, described flow-limiting valve 5 is adjustable flow-limiting valve, can regulate according to switch Water in oil air content the flow of flow-limiting valve, when moisture air content is higher, flow is diminished, except corresponding the uprising of pressure in the water filter, water rem oval uprises, and vice versa.
Above-mentioned on load tap changer oil filter operation principle:
After oil pump 1 pumps into contaminant filter 2 with circuit-breaker oil, circuit-breaker oil enters except water filter 3, circuit-breaker oil is heated rapidly, moisture in the circuit-breaker oil flashes to gaseous state, because except water filter 3 downstreams are provided with flow-limiting valve 5, so vaporous water and some other gas mixture be except discharging through pellicle 31 after being squeezed in the water filter 3, thereby reached the purpose of moisture in the thorough removal circuit-breaker oil.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. on load tap changer oil filter, to press the flow direction of circuit-breaker oil sequentially continuous by oil pump (1), contaminant filter (2) and except water filter (3), it is characterized in that: described except water filter (3) be a flat metal heat-conducting pipeline, the upper wall of described metal heat-conducting pipeline is provided with the open type breach, described breach is the permeable and oil-resisting pellicle of air (31) sealing by one, be provided with heating plate in the lower wall of described metal heat-conducting pipeline, the downstream of described metal heat-conducting pipeline is provided with fin and flow-limiting valve (5).
2. on load tap changer oil filter according to claim 1, it is characterized in that: only heating plate and fin are replaced respectively hot end heat exchanger (41) and the cool end heat exchanger (42) of corresponding heat pump (4), described cool end heat exchanger (42) and hot end heat exchanger (41) are connected with heat pump (4).
3. on load tap changer oil filter according to claim 1 is characterized in that: the described metal heat-conducting pipeline up and down distance between the wall is between the 2mm to 5mm.
4. on load tap changer oil filter according to claim 1, it is characterized in that: described flow-limiting valve (5) is adjustable flow-limiting valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398172 CN202796331U (en) | 2012-08-13 | 2012-08-13 | Load tap changer oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398172 CN202796331U (en) | 2012-08-13 | 2012-08-13 | Load tap changer oil filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796331U true CN202796331U (en) | 2013-03-13 |
Family
ID=47823542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220398172 Expired - Fee Related CN202796331U (en) | 2012-08-13 | 2012-08-13 | Load tap changer oil filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903481A (en) * | 2012-08-13 | 2013-01-30 | 吴江市东泰电力特种开关有限公司 | On-load tap-changer oil filter |
-
2012
- 2012-08-13 CN CN 201220398172 patent/CN202796331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903481A (en) * | 2012-08-13 | 2013-01-30 | 吴江市东泰电力特种开关有限公司 | On-load tap-changer oil filter |
| CN102903481B (en) * | 2012-08-13 | 2016-01-20 | 吴江骏达电梯部件有限公司 | A kind of on-load tap-changer oil filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130813 |