CN201815160U - Filtering device for gas drying equipment - Google Patents
Filtering device for gas drying equipment Download PDFInfo
- Publication number
- CN201815160U CN201815160U CN2010205271242U CN201020527124U CN201815160U CN 201815160 U CN201815160 U CN 201815160U CN 2010205271242 U CN2010205271242 U CN 2010205271242U CN 201020527124 U CN201020527124 U CN 201020527124U CN 201815160 U CN201815160 U CN 201815160U
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- kerosene
- cavity
- inlet
- filter
- transformer
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Abstract
The utility model relates to a filtering device for gas drying equipment, which comprises a cavity (23) provided with a kerosene inlet (22), a kerosene outlet (19) and an external vacuum-pumping port (15). A filtering screen (20) is arranged in the cavity (23), the external vacuum-pumping port (15) can be connected with an external vacuum system, and the kerosene inlet (22) is arranged on the lateral wall of the cavity (23). The filtering device is capable of circulating kerosene rapidly without being placed in a pit.
Description
Technical field
The utility model belongs to technical field of transformer manufacturing, relates to a kind of filter, is specifically related to be used to filter in a kind of gas phase drying equipment the filter of kerosene liquid.
Background technology
In recent years, along with China's electric power industry development is swift and violent, in order to solve transformer dry problem of handling of transformer body when erecting bed assembling and the maintenance, transformer manufacturing enterprise wishes to find a kind of dry mass, and drying means and equipment satisfy the demand of big capacity, voltage levels transformer production preferably.And the gas phase drying means is to be used for the top-quality a kind of drying mode of dry transformer body at present, this drying means is to come transformer body is carried out drying by corresponding gas phase drying equipment, and the gas phase drying equipment adopts kerosene steam that transformer body is carried out drying usually.Include coarse filter in the existing gas phase drying equipment, coarse filter is generally used for filtering the condensed kerosene liquid that comes out in the dry volume (vacuum tank).
Shown in Figure 1 is employed coarse filter in the traditional gas phase drying equipment, referring now to Fig. 1, the course of work to coarse filter describes: the gas phase drying equipment is handled in the heating process of transformer in drying, kerosene steam in entering dry volume runs into cold transformer after one's death, some kerosene steam condensation becoming kerosene liquid, kerosene outlet (not shown in figure 1) on dry volume flows out, and in the kerosene inlet 1 inflow cavity 5 by the coarse filter upper end, after filtering through filter screen 6 from the overhead stream of screen pack 6 then, by kerosene delivery pump 8 kerosene liquid is sent in other parts of gas phase drying equipment again, is used for recycling once more.Pass through screen pack 6 because the kerosene in the inflow coarse filter can carry transformer dust and foul on one's body, thereby screen pack 6 is filtering to the kerosene of flowing through wherein constantly all in whole dry run.When stopping up appearred in screen pack 6, the operator can take out screen pack 6 from cavity 5, to clean.Liquid level display 7 wherein is the actual liquid levels that are used for showing kerosene in the cavity 5, thereby gives the gas phase drying equipment with operation indicating.
In existing gas phase drying equipment, can flow into smoothly in the coarse filter in order to guarantee the kerosene liquid in the dry volume, common way is that coarse filter is built under the melt pit, to guarantee the difference in height between dry volume and the coarse filter.
In order to save cost, can adopt the gas phase drying means that transformer body is carried out drying in the transformer erecting bed.In order to be suitable for the needs of transformer erecting bed, this gas phase drying means is to replace vacuum tank as dry volume with oil tank of transformer.But limited because of the working space in the oil tank of transformer, particularly the transformer parts in the oil tank of transformer can directly influence the circulation of kerosene, thereby influence the work of coarse filter, and then influence the work of whole gas phase drying equipment.
In addition,,, carry out relatively difficulty of civil engineering work, be difficult to coarse filter is built under the melt pit because of being subjected to the restriction of user's environmental condition in the transformer erecting bed.And for the coarse filter shown in Fig. 1, if it is not built in the melt pit that highly is lower than dry volume, then the liquid level difference between outlet of the kerosene of oil tank of transformer and the coarse filter is not enough, cause the flow velocity of kerosene circulation not enough further, thereby also can further influence the work of whole gas phase drying equipment.
The utility model content
The technical problem that the utility model solved is the problems referred to above that are not suitable for the environmental requirement of transformer erecting bed at coarse filter of the prior art, a kind of filter that is used for the gas phase drying equipment is provided, make and also can realize the quick circulation of kerosene liquid under the situation that does not have difference in height between dry volume and the described filter, thereby need not dig pit on ground to place this filter.
The technical scheme that solution the utility model technical problem is adopted is that this filter that is used for the gas phase drying equipment comprises cavity, described cavity is provided with kerosene inlet and kerosene outlet, screen pack is arranged in the cavity, also be provided with the outer vacuum orifice that can link to each other on the cavity with the external vacuum system.
In transformer being carried out dry process, connect the external vacuum system by outer vacuum orifice, described external vacuum system can control between the cavity of dry volume (vacuum tank or oil tank of transformer) and filter by external vacuum port and keep certain pressure differential, quickens the purpose that the kerosene in the whole gas phase drying equipment circulates thereby reach.
Preferably, described kerosene inlet is located on the sidewall of cavity, and is relative with screen pack, so just reduced the height between kerosene inlet and the screen pack, thereby can further reduce the difference in height between dry volume and this filter, realize the quick circulation of kerosene liquid.Thereby in the transformer erecting bed, even do not dig the circulation that melt pit also can guarantee the inner kerosene liquid of gas phase drying equipment.
Further preferably, the top of cavity or top also are provided with second kerosene inlet.Described kerosene inlet can link to each other with the accident fuel outlet on the oil tank of transformer, and described second kerosene inlet can link to each other with the seabed fuel outlet on the oil tank of transformer.Usually all be provided with accident fuel outlet and seabed fuel outlet on the oil tank of transformer, wherein the bore of accident fuel outlet is bigger, can utilize the kerosene circulation, but because of it has certain altitude from the oil tank of transformer bottom, the kerosene of oil tank of transformer bottom all can not be discharged; Seabed fuel outlet bore is less, can not utilize the kerosene circulation, but the kerosene of lowest part in the oil tank of transformer can be emitted.She Ji purpose can guarantee under the prerequisite that does not change transformer oil tank structure like this, solves the circulatory problems and the dry recovery problem that finishes all kerosene in the oil tank of transformer of back of kerosene in the dry run.
Preferably, cavity extends back and forms the collecting chamber that can hold condensation kerosene liquid, and described outer vacuum orifice is located on the pairing cavity of collecting chamber.The bottom of collecting chamber is located in described kerosene outlet, and the bottom of collecting chamber also can be provided with the kerosene delivery pump, and described condensation kerosene liquid flows out from the kerosene outlet behind the kerosene delivery pump.Also can be provided with the fluid level controller that to control the start and stop of kerosene delivery pump on the collecting chamber.
If transformer body is carried out drying,, generally all be as dry volume, to replace vacuum tank with oil tank of transformer in order to save cost in the transformer erecting bed.But limited because of the working space in the oil tank of transformer, can directly influence the circulation of kerosene liquid.By form a collecting chamber at the cavity rear portion, can collect and store condensation kerosene liquid.When condensation kerosene reach a certain amount of after, fluid level controller sends signal and gives the kerosene delivery pump, by the kerosene delivery pump kerosene liquid is sent to other element of gas phase drying equipment, is used for carrying out the circulation once more of kerosene.Thereby the utility model solved the problem of kerosene delivery pump frequent starting in the prior art, prolonged the service life of kerosene delivery pump, saved the energy, also guaranteed recycling of kerosene in the heating process.
Preferably, it is relative with the kerosene inlet that described screen pack is located at the cavity middle part, screen pack is divided into cavity leading portion and cavity back segment with cavity, described cavity back segment is collecting chamber, the bottom of described cavity leading portion also is provided with sewage draining exit, described sewage draining exit can be removed the impurity that deposits in the cavity, is convenient to clean.
Preferably, described screen pack is band pocket semi-cylindrical, and this structure can make the kerosene liquid that enters from cavity wall successfully flow into the screen pack.
Preferably, described cavity also is coated with heat-insulation layer outward, described heat-insulation layer can be incubated the kerosene liquid that is stored in the cavity, when stored kerosene liquid enters before oil tank of transformer recycles once more, can reduce the thermal losses of kerosene in heating process, play the effect of energy savings.
Further preferably, also be provided with the inflation inlet (promptly removing vacuum port) of band charge valve on the cavity, charge valve is used for opening or closing described inflation inlet, and the front end of inflation inlet has elbow.When needs cleaning and filtering net, charge valve is opened, by the vacuum condition in the inflation inlet releasing cavity.The shape that the front end of inflation inlet is set to elbow can play safe effect, avoid the operator when the cleaning and filtering net, because of misoperation or because of device fails, when removing vacuum, high temperature kerosene liquid sprays from inflation inlet and injures staff on the scene.
More preferably, position corresponding with screen pack on the cavity top also is provided with an opening, and described opening has observation window by openable cover plate for sealing on the described cover plate, and by described observation window, the operator can watch the slag thing in the screen pack at any time.
Filter of the present invention has following advantage for traditional coarse filter:
1) need not employ civil engineering, promptly dig melt pit on the ground, greatly reduce the cost of manufacture of transformer;
2) applicability is strong, both has been suitable for fixed gas phase drying equipment, is suitable for portable gas phase drying equipment (i.e. the gas phase drying equipment that uses in the transformer erecting bed) again;
3) because of having collecting chamber, the kerosene delivery pump does not need frequent starting, and this filter has been played protective effect;
4) at the inflation inlet front end one bend pipe is arranged, when changing screen pack, can make operation become safer;
5) cavity is provided with heat-insulation layer outward, can reduce the loss of dry run energy, finally reduces the cost of manufacture of transformer.
Description of drawings
Fig. 1 shows the structural representation of coarse filter in traditional gas phase drying equipment;
Fig. 2 shows the structural representation of the utility model filter.
Among the figure: 1-kerosene inlet, 2-inflation inlet, 3-cover plate, 4-housing pin, the 5-cavity, 6-screen pack, 7-liquid level display, 8-kerosene delivery pump, the outlet of 9-kerosene, 10-second kerosene inlet, 11-inflation inlet, 12-cover plate, the 13-housing pin, 14-collecting chamber, the outer vacuum orifice of 15-, 16-fluid level controller, the 17-heat-insulation layer, 18-kerosene delivery pump, the outlet of 19-kerosene, 20-screen pack, the 21-sewage draining exit, 22-kerosene inlet, 23-cavity.
The specific embodiment
For making those skilled in the art understand the technical solution of the utility model better, the utility model filter is described in further detail below in conjunction with the drawings and specific embodiments.
Adopt the gas phase drying means transformer body to be carried out the problem that occurs in the drying in order to solve in the transformer erecting bed, the utility model has overcome the problem that the gas phase seasoning is difficult to realize in the transformer erecting bed by the coarse filter in the conventional fixed formula gas phase drying equipment is improved.
As shown in Figure 2, the utility model filter comprises cavity 23, described cavity 23 is provided with kerosene inlet 22, kerosene outlet 19, also is provided with the screen pack 20 that is used for filtering kerosene liquid slag thing in the cavity 23, and cavity 23 is provided with the outer vacuum orifice 15 that can link to each other with the external vacuum system.
Described kerosene inlet 22 is located on the sidewall of cavity 23, and its position is relative with screen pack 20, and described kerosene inlet 22 can link to each other with the accident fuel outlet on the oil tank of transformer.
The top of cavity 23 or top also can be provided with second kerosene inlet 10, and described second kerosene inlet 10 can link to each other with the seabed fuel outlet on the oil tank of transformer.
Can form the collecting chamber 14 that can hold kerosene liquid by cavity 23 is extended back, described outer vacuum orifice 15 is located on the collecting chamber 14 pairing cavitys.In the present embodiment, screen pack 20 is divided into cavity leading portion and cavity back segment by screen pack 20 with cavity 23 for band pocket semi-cylindrical, and described cavity back segment is collecting chamber 14, and the bottom of described cavity leading portion also can be provided with sewage draining exit 21.
The bottom of collecting chamber 14 is located in kerosene outlet 19, and the bottom of collecting chamber 14 also is provided with kerosene delivery pump 18, and described kerosene liquid flows out from kerosene outlet 19 behind kerosene delivery pump 18.Also be provided with the fluid level controller 16 that to control 18 start and stop of kerosene delivery pump on the collecting chamber 14.
In the present embodiment, cavity 23 is provided with the inflation inlet 11 of band charge valve, and the front end of described inflation inlet 11 has elbow.
In the present embodiment, be provided with an opening in cavity 23 tops and screen pack 20 corresponding positions, described opening has observation window by openable cover plate 12 sealings on the cover plate 12.
In the present embodiment, also be coated with heat-insulation layer 17 on the cavity 23.
Specific operation process to the utility model filter describes below.
The gas phase drying equipment is when carrying out the drying processing to transformer, kerosene liquid after the heating flows out from the accident fuel outlet of oil tank of transformer or seabed fuel outlet, and the inlet of the kerosene on cavity 23 22 or second kerosene inlet 10 flows in the cavity 23, carry by kerosene delivery pump 18 again through the kerosene liquid after filter screen 20 filtrations, and come out from kerosene outlet 19, give the gas phase drying equipment and recycle, unnecessary after filtering kerosene liquid then continues to be stored in the collecting chamber 14.Wherein, fluid level controller 16 can be according to the kerosene amount in the collecting chamber 14, the start-stop time of control kerosene delivery pump 18.
When viewing screen pack 20 observation window of operator from cover plate 12 when occurring stopping up, only need to cut off the path that kerosene liquid flows into this filter, by the operation charge valve opening inflation inlet 11, thereby can remove the vacuum in the cavity 23.After treating that gas replenishment process finishes, unclamp housing pin 13, open cover plate 12, take out screen pack 20, it is cleaned.Net 20 to be filtered carries out reverse operating after cleaning and finishing, and again above-mentioned parts is installed, and recovers the operation of this filter.
Be understandable that above embodiment only is the illustrative embodiments that adopts for principle of the present utility model is described, yet the utility model is not limited thereto.For those skilled in the art, under the situation that does not break away from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement also are considered as protection domain of the present utility model.
Claims (10)
1. filter that is used for the gas phase drying equipment, comprise cavity (23), described cavity (23) is provided with kerosene inlet (22) and kerosene outlet (19), screen pack (20) is arranged in the cavity (23), it is characterized in that also being provided with on the cavity (23) the outer vacuum orifice (15) that can link to each other with the external vacuum system.
2. filter according to claim 1 is characterized in that described kerosene inlet (22) is located on the sidewall of cavity (23).
3. filter according to claim 2 is characterized in that the top of cavity (23) or top also are provided with second kerosene inlet (10).
4. filter according to claim 3 is characterized in that described kerosene inlet (22) can link to each other with the accident fuel outlet on the oil tank of transformer, and described second kerosene inlet (10) can link to each other with the seabed fuel outlet on the oil tank of transformer.
5. filter according to claim 1 is characterized in that cavity (23) extends back to form the collecting chamber (14) can hold kerosene liquid that described outer vacuum orifice (15) is located on the pairing cavity of collecting chamber (14).
6. filter according to claim 5, it is relative with kerosene inlet (22) to it is characterized in that described screen pack (20) is located at the cavity middle part, screen pack (20) is divided into cavity leading portion and cavity back segment with cavity (23), described cavity back segment is collecting chamber (14), the bottom of cavity leading portion also is provided with sewage draining exit (21), and screen pack (20) is band pocket semi-cylindrical.
7. filter according to claim 5, it is characterized in that described kerosene exports the bottom that (19) are located at collecting chamber (14), the bottom of collecting chamber (14) also is provided with kerosene delivery pump (18), described kerosene liquid flows out from kerosene outlet (19) behind kerosene delivery pump (18), also is provided with the fluid level controller (16) that can control kerosene delivery pump (18) start and stop on the collecting chamber (14).
8. according to the described filter of one of claim 1-7, it is characterized in that being coated with on the described cavity (23) heat-insulation layer (17).
9. according to the described filter of one of claim 1-7, it is characterized in that cavity (23) is provided with the inflation inlet (11) of band charge valve, the front end of described inflation inlet (11) has elbow.
10. according to the described filter of one of claim 1-7, it is characterized in that the position corresponding with screen pack (20), cavity top is provided with an opening, described opening is by openable cover plate (12) sealing, and described cover plate has observation window on (12).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205271242U CN201815160U (en) | 2010-09-10 | 2010-09-10 | Filtering device for gas drying equipment |
| PCT/CN2010/001713 WO2011050577A1 (en) | 2009-10-30 | 2010-10-28 | System and method for realizing kerosene gas phase drying to transformers assembled on-site |
| EA201290253A EA030334B1 (en) | 2009-10-30 | 2010-10-28 | System and method for realizing kerosene gas phase drying to transformers assembled on-site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205271242U CN201815160U (en) | 2010-09-10 | 2010-09-10 | Filtering device for gas drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201815160U true CN201815160U (en) | 2011-05-04 |
Family
ID=43913132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205271242U Expired - Lifetime CN201815160U (en) | 2009-10-30 | 2010-09-10 | Filtering device for gas drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201815160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829299A (en) * | 2020-07-14 | 2020-10-27 | 沈阳诚桥真空设备有限公司 | Solvent spray vapor phase drying method, equipment and system |
-
2010
- 2010-09-10 CN CN2010205271242U patent/CN201815160U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829299A (en) * | 2020-07-14 | 2020-10-27 | 沈阳诚桥真空设备有限公司 | Solvent spray vapor phase drying method, equipment and system |
| CN111829299B (en) * | 2020-07-14 | 2023-10-27 | 沈阳诚桥真空设备有限公司 | Solvent spray vapor phase drying method, equipment and system |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |