CN207409350U - The extension tube of for transformer breathing equipment - Google Patents

The extension tube of for transformer breathing equipment Download PDF

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Publication number
CN207409350U
CN207409350U CN201721628626.2U CN201721628626U CN207409350U CN 207409350 U CN207409350 U CN 207409350U CN 201721628626 U CN201721628626 U CN 201721628626U CN 207409350 U CN207409350 U CN 207409350U
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CN
China
Prior art keywords
extension tube
nut
breathing equipment
transformer
extension
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Active
Application number
CN201721628626.2U
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Chinese (zh)
Inventor
张池川
姜龙
陈磊
刘铜锤
姜春莹
周国平
何春光
朱树云
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State Grid Corp of China SGCC
Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201721628626.2U priority Critical patent/CN207409350U/en
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Publication of CN207409350U publication Critical patent/CN207409350U/en
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Abstract

The utility model provides the extension tube of for transformer breathing equipment, belong to substation field, the both ends for being included in the extension tube are respectively welded nut, and the nut of one end is screwed on screw rod exposed at transformer sealing gasket, and extension bolt is connected on the nut of the other end;The vertical nut perpendicular to side wall is welded on the side wall for extending bolt head, vertical nut is connected with one end of the threaded rod in breathing equipment, the other end of threaded rod is connected with the threaded hole on breathing equipment top cylindrical body, and clamp nut is equipped at threaded rod both ends.Can be convenient that breathing equipment is replaced on the basis of service personnel's security is ensured by using extension tube, so as to extend the service life of equipment, defect expressivity flow is simplified, substantially reduces the repair time, is improved work efficiency.

Description

The extension tube of for transformer breathing equipment
Technical field
The utility model belongs to the extension tube in substation field, more particularly to for transformer breathing equipment.
Background technology
Plastic flexible pipe small investment is selected in the selection of breathing equipment extension tube, and plasticity is strong, easy to install, but its poor corrosion resistance, It is easy to aging, influence airtight effect;Iron pipe is cheap, but easy-to-rust, and in-site installation shaping difficulty is, it is necessary to according to each equipment not It is processed with field condition shaping, versatility is not strong, and the leakage detecting process after shaping is more complicated.
Utility model content
In order to solve shortcoming and defect in the prior art, the utility model provides to ensure to overhaul The extension tube of for transformer breathing equipment of work efficiency is improved on the basis of personnel safety.
In order to reach above-mentioned technical purpose, the utility model provides the extension tube of for transformer breathing equipment, in institute The both ends for stating extension tube are respectively welded nut, and the nut of one end is screwed on screw rod exposed at transformer sealing gasket, another Extension bolt is connected on the nut at end;
Be welded with vertical nut perpendicular to side wall on the side wall for extending bolt head, vertical nut in breathing equipment One end of threaded rod be connected, the other end of threaded rod is connected with the threaded hole on breathing equipment top cylindrical body, in threaded rod Both ends are equipped with clamp nut.
Optionally, it is equipped with connector between screw rod exposed at the extension tube and transformer sealing gasket.
Optionally, the connector includes cylinder, mounting hole is equipped in the end face centre position of cylinder, with mounting hole Centered on be equipped with the hole post of default quantity, the screw thread being connected with extension tube one end screw rod is equipped on the madial wall of hole post.
Optionally, the gasket is silicagel pad.
Optionally, the extension length of tube is 1.5m.
Optionally, the extension tube is corrugated stainless steel tubing.
The advantageous effect that technical solution provided by the utility model is brought is:
It can be convenient that breathing equipment is carried out more on the basis of service personnel's security is ensured by using extension tube It changes, so as to extend the service life of equipment, simplifies defect expressivity flow, substantially reduce the repair time, improve work Efficiency.
Description of the drawings
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is the structure diagram of the extension tube of for transformer breathing equipment provided by the utility model;
Fig. 2 is the structure diagram of connector provided by the utility model.
Specific embodiment
To make the structure of the utility model and advantage clearer, the structure of the utility model is made below in conjunction with attached drawing It is further described through.
Embodiment one
The utility model provides the extension tube of for transformer breathing equipment, as shown in Figure 1, the two of the extension tube End is respectively welded nut, and the nut of one end is screwed on screw rod exposed at transformer sealing gasket, connects on the nut of the other end It is connected to extension bolt;
Be welded with vertical nut perpendicular to side wall on the side wall for extending bolt head, vertical nut in breathing equipment One end of threaded rod be connected, the other end of threaded rod is connected with the threaded hole on breathing equipment top cylindrical body, in threaded rod Both ends are equipped with clamp nut.
In force, transformer breathing equipment is also referred to as transformer breather or transformer silica gel tank, it is therefore an objective to for absorption Enter transformer oil storage into the moisture in conservator poly-bag, membrane, removing and the dry variation with temperature of oil in transformer in air Sundries and moisture in the air of cabinet, in case transformer makes moist, so as to ensure the dielectric strength of transformer oil.Work as transformer temperature When reduction, oil level decline, transformer sucks gas by respirator, and gas first passes through oil sealing and carried out the dust in gas Filter, is then passed through silica gel room, adsorbs the moisture in gas by silica gel so that done into the cleaning gas in capsule It is dry.In order to keep the normal operation of transformer, it is necessary to periodically be replaced to the silica gel in respirator.
When being replaced in view of power equipment maintaining personnel to silica gel, in order to ensure the safety of power equipment maintaining personnel, it is necessary to protect Demonstrate,prove the safe distance between transformer breathing equipment and electrical body.It is provided according to safety code, peace when 35kV equipment does not have a power failure Full distance is 1m, and the selection for extending length of tube can be different from electrical body distance true according to the transformer breather of different model It is fixed, as long as meeting safe distance.
Specifically, as shown in Figure 1, being respectively welded nut at the both ends of extension tube, the nut 1 of one end is screwed in transformer At gasket on exposed screw rod 11, it is connected on the nut 2 of the other end and extends bolt 21;
The vertical nut 22 perpendicular to side wall, vertical nut 22 and breathing are welded on the side wall for extending 21 head of bolt One end of threaded rod 23 in device is connected, the other end and the threaded hole phase on breathing equipment top cylindrical body 3 of threaded rod 23 Even, it is equipped with clamp nut 231 at 23 both ends of threaded rod.
According to the specifications and models of transformer insulated pad fastening bolt, the extension tube for being adapted specification is selected, respectively at both ends Weld the nut (such as selecting the nut of internal diameter 12mm) of equivalent specifications.One end nut is fixed on exposed spiral shell at transformer sealing gasket On bar 12, the other end is then connected by nut 2 with the extension bolt 21 of an equal model, and one is welded again extending 21 head of bolt A vertical nut 22 perpendicular to head, effect are the fixed threaded rods being connected with breathing equipment, and can be real according to breathing equipment The difference of border position does 360 ° of rotations.
23 one end of threaded rod nut 22 vertical in extension tube is connected, on the other end and thread bush top cylindrical body 3 Threaded hole is connected, and is fastened respectively with clamp nut 231.The thread cap of breathing equipment is fixed, and replaces hygroscopic agent, that is, silicon During glue, breathing equipment lower end need to only be unscrewed, it is convenient and efficient.
Optionally, it is equipped with connector between screw rod exposed at the extension tube and transformer sealing gasket.Connector bag Cylinder is included, mounting hole is equipped in the end face centre position of cylinder, the hole post of default quantity is equipped with centered on mounting hole, The madial wall of hole post is equipped with the screw thread being connected with extension tube one end screw rod
In force, it is equipped with connector 12 between screw rod 11 exposed at the extension tube and transformer sealing gasket.
In force, most of connector of transformer breathing equipment is plastic material, and originally propose to select to add again The aluminum products finished product of work transformation, light weight, corrosion resistance, fastness are all preferable, but aluminum products moulding process is more complicated, commission Foundry cost is higher.By determining selection easy purchase, easy processing after investigation, price is low, corrosion resistance is preferable, and mechanical strength Height, plasticity is strong, nylon plastic(s) stick at low cost.
Extension tube upper end and transformer flange connector 12, the structure of the connector 12 are specific as shown in Fig. 2, by plastics Stick is processed into an a diameter of 11.5cm, and the cylinder of high 3cm punches, bore dia 1cm, with circular hole in its center position Centered on be processed into the described screwed hole post 121 of wall thickness 1cm, high 1.5cm, as the connection with corrugated stainless steel tubing.According on flange Hole position, punched respectively on the round sheet connector left, as with the fastening of the bolt of flange.
Optionally, the gasket is silicagel pad.
In force, silicagel pad is a kind of product that the market demand is more in silica gel product.There is certain tension, flexible Property, excellent insulating properties, pressure-resistant, high temperature resistant, low temperature resistant, chemical property stabilization, Environmental Safety, free from extraneous odour, food grade silicone pad It is a kind of green product of high activity with non-toxic and tasteless, not soluble in water and any solvent.
Optionally, the extension length of tube is 1.5m.
In force, a corrugated stainless steel tubing is installed below connector additional, length (provides, 35kV for 1.5m according to safety Safe distance is 1.0m when voltage class equipment does not have a power failure, and Bellows Length can need appropriateness increase and decrease according to scene).In this way, When replacing respirator hygroscopic agent, since safe distance is enough, can livewire work be switched to by power failure work.The stainless steel wave of selection Line pipe is specific to the more demanding occasion design of water, oil, gas body, and the product through pass the test.
Optionally, the extension tube is corrugated stainless steel tubing.
In force, corrugated stainless steel tubing is installed on as a kind of flexible pressure-resistant pipe fitting in liquid conveying system, to mend The effects that repaying pipeline or machine, the mutual displacement of equipment connecting pin, absorbing vibrational energy, can play vibration damping, noise reduction has soft The multinomial features such as property good, light weight, corrosion-resistant, antifatigue, high-low temperature resistant.
Wavy metal pipe stiffness makes metal bellows or other elastic elements generate the required load value of unit displacement and claim It is general to be represented with " K " for the rigidity of element.If the elastic characteristic of element is nonlinear, rigidity is no longer constant, but It changes with the increase of load.It is firm that the rigidity that the design of nominal rigidity elastic element provides when calculating is known as nominal (or specified) Its actual measurement rigidity with element of degree has error, the particularly elastic element with nonlinear elasticity characteristic.What nominal rigidity represented It is which point rigidity on curve, then thinks over.In general, nominal rigidity had better not be calculated directly using design Value, but correction value of the product prototype after test should be used.Rigidity allows when rigidity franchise tests a collection of elastic element Dispersion range.To with batch elastic element, the rigidity of each element of flange-connection stainless steel metal flexible pipe is not quite similar, there are one scattered Scope.It, just must be to restriction there are one rigidity dispersion ranges in order to ensure the performance of element.To elastic sensing element, Rigidity tolerance requirements are limited within +/- the 5% of nominal value;The ripple tubing elastic element of common engineering, rigidity franchise can It is limited within +/- 50%.
The utility model provides the extension tube of for transformer breathing equipment, is respectively welded at the both ends of the extension tube There is nut, the nut of one end is screwed on screw rod exposed at transformer sealing gasket, and extension spiral shell is connected on the nut of the other end Bolt;The vertical nut perpendicular to side wall, vertical nut and the spiral shell in breathing equipment are welded on the side wall for extending bolt head One end of rasp bar is connected, and the other end of threaded rod is connected with the threaded hole on breathing equipment top cylindrical body, at threaded rod both ends It is equipped with clamp nut.It can be convenient to breathing equipment on the basis of service personnel's security is ensured by using extension tube It is replaced, so as to extend the service life of equipment, simplifies defect expressivity flow, substantially reduce the repair time, improved Work efficiency.
Each sequence number in above-described embodiment is for illustration only, does not represent the elder generation during the assembling or use of each component Order afterwards.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, all in the utility model Spirit and principle within, any modifications, equivalent replacements and improvements are made should be included in the protection model of the utility model Within enclosing.

Claims (6)

1. the extension tube of for transformer breathing equipment, which is characterized in that nut is respectively welded at the both ends of the extension tube, The nut of one end is screwed on screw rod exposed at transformer sealing gasket, and extension bolt is connected on the nut of the other end;
The vertical nut perpendicular to side wall, vertical nut and the spiral shell in breathing equipment are welded on the side wall for extending bolt head One end of rasp bar is connected, and the other end of threaded rod is connected with the threaded hole on breathing equipment top cylindrical body, at threaded rod both ends It is equipped with clamp nut.
2. the extension tube of for transformer breathing equipment according to claim 1, which is characterized in that the extension tube with Connector is equipped at transformer sealing gasket between exposed screw rod.
3. the extension tube of for transformer breathing equipment according to claim 2, which is characterized in that the connector includes Cylinder, mounting hole is equipped in the end face centre position of cylinder, the hole post of default quantity is equipped with centered on mounting hole, in hole The madial wall of column is equipped with the screw thread being connected with extension tube one end screw rod.
4. the extension tube of for transformer breathing equipment according to claim 2, which is characterized in that the gasket is silicon Rubber cushion.
5. the extension tube of for transformer breathing equipment according to claim 1, which is characterized in that the extension length of tube For 1.5m.
6. the extension tube of for transformer breathing equipment according to claim 1, which is characterized in that the extension tube is not Become rusty corrugated steel pipe.
CN201721628626.2U 2017-11-29 2017-11-29 The extension tube of for transformer breathing equipment Active CN207409350U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721628626.2U CN207409350U (en) 2017-11-29 2017-11-29 The extension tube of for transformer breathing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721628626.2U CN207409350U (en) 2017-11-29 2017-11-29 The extension tube of for transformer breathing equipment

Publications (1)

Publication Number Publication Date
CN207409350U true CN207409350U (en) 2018-05-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721628626.2U Active CN207409350U (en) 2017-11-29 2017-11-29 The extension tube of for transformer breathing equipment

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107993811A (en) * 2017-11-29 2018-05-04 国网浙江省电力公司宁波供电公司 The extension tube of for transformer breathing equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107993811A (en) * 2017-11-29 2018-05-04 国网浙江省电力公司宁波供电公司 The extension tube of for transformer breathing equipment

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