CN113418040A - Leakage-proof pressure release mechanism for oil-immersed transformer and implementation method thereof - Google Patents

Leakage-proof pressure release mechanism for oil-immersed transformer and implementation method thereof Download PDF

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Publication number
CN113418040A
CN113418040A CN202110969696.9A CN202110969696A CN113418040A CN 113418040 A CN113418040 A CN 113418040A CN 202110969696 A CN202110969696 A CN 202110969696A CN 113418040 A CN113418040 A CN 113418040A
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pressure
cylinder
air
air inlet
rod
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CN202110969696.9A
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CN113418040B (en
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严九江
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Nantong Pusler Mechanical Equipment Co ltd
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Nantong Yaobang Power Equipment Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0493—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a spring other than a helicoidal spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/12—Alarms or signals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/20—Cooling by special gases or non-ambient air
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/404—Protective devices specially adapted for fluid filled transformers

Abstract

The invention discloses a pressure release mechanism for an oil-immersed transformer capable of preventing leakage and an implementation method of the pressure release mechanism for the oil-immersed transformer capable of preventing leakage. When the internal pressure of the cylinder body is too low, the pressure can be released through the air dispersing holes directly, if the internal pressure of the cylinder body is increased, the arc-shaped carrying cylinder can be jacked upwards and the pressure can be released to the periphery by utilizing the rising clearance of the arc-shaped carrying cylinder, if the internal pressure of the cylinder body exceeds a certain threshold value, and the air flow continuously jacks up the sliding piston body upwards, the transverse carrying rod connected with the sliding ejector rod can drive the long sliding rod and the transverse rod to move upwards synchronously, the vertical rod connected with the bottom end of the transverse rod can lift the air baffle plate upwards and is communicated with the air inlet hole, so that redundant air flow flows into the air inlet cylinder body through the air inlet long pipe, the pressure can be released at multiple positions simultaneously, and the pressure releasing efficiency of the device is also effectively improved.

Description

Leakage-proof pressure release mechanism for oil-immersed transformer and implementation method thereof
Technical Field
The invention relates to the technical field of oil-immersed transformer accessories, in particular to a pressure release mechanism for an oil-immersed transformer capable of preventing leakage and an implementation method thereof.
Background
The transformer consists of a transformer body, a transformer oil tank and peripheral components; in order to ensure that the transformer body is isolated from the outside, when the medium-large transformer is transported for a long distance and stored for a long time (the transformer is transported to an owner site, and the site cannot meet the installation condition of the transformer), the positive pressure of nitrogen gas is filled in the transformer oil tank and is about 0.025 Mpa; at present, when the transformer is transported and stored by filling nitrogen, the increase of the positive pressure of the nitrogen in the transformer oil tank is not considered when the environmental temperature is increased, and the leakage of the transformer oil tank and the damp risk of the transformer body are increased. The pressure relief valves for the existing transformers are all arranged on the tank cover or the tank wall of an oil tank, the pressure relief valves are connected with an oil tank connecting flange, the pressure relief valves are all of external spring type, air release devices of the pressure relief valves are directly exposed in the air, and spring sealing rings are all exposed in the air. The conventional pressure relief valve consists of a spring, a valve seat, a spring seat, a shell, a mark rod, a sealing ring and other parts. When the transformer generates pressure, the spring seat is pushed upwards, the spring contracts to promote gas to flow out of the port, and accompanying transformer oil spreads out.
The conventional oil-immersed transformer is generally inconvenient to quickly release pressure, has low pressure release efficiency, easily causes direct damage to parts or human bodies in the pressure release process, has low safety coefficient and cannot timely cool the surface of the transformer when the temperature is high.
In order to solve the problems, the invention provides the pressure release mechanism for the oil-immersed transformer capable of preventing leakage and the implementation method thereof, and the pressure release mechanism has the advantages of high pressure release speed, high pressure release efficiency, difficulty in causing direct damage to parts or human bodies in the pressure release process, high safety coefficient, capability of timely cooling the surface of the transformer at high temperature and the like.
Disclosure of Invention
The invention aims to provide a pressure release mechanism for an oil-immersed transformer capable of preventing leakage and an implementation method thereof, which have the advantages of high pressure release speed, high pressure release efficiency, difficulty in causing direct damage to parts or human bodies in the pressure release process, high safety coefficient, capability of timely cooling the surface of the transformer at high temperature and the like, and can solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a pressure releasing mechanism for an oil-immersed transformer capable of preventing leakage comprises a pressure-variable bearing oil cylinder releasing structure and an auxiliary pressure adjusting structure, wherein one end of the pressure-variable bearing oil cylinder releasing structure is connected with the auxiliary pressure adjusting structure, the pressure-variable bearing oil cylinder releasing structure comprises a transformer main body, a pressure-variable oil cylinder and an air compressing releasing assembly, the upper end surface of the transformer main body is provided with the pressure-variable oil cylinder, the pressure-variable oil cylinder respectively comprises a cylinder cover, a cylinder body, a fixing flange and a pressure measuring probe, the bottom end of the cylinder cover is provided with the cylinder body, the fixing flange is arranged at the bottom end of the cylinder body, the cylinder body is in screwed connection with the transformer main body through the fixing flange, the surface of the cylinder cover is provided with a plurality of groups of air diffusion holes, the pressure measuring probe is inserted and connected to the outer side of the cylinder cover, the bottom end of the pressure measuring probe is provided with an induction probe, the lower end of the induction probe penetrates through the cylinder cover and extends into an inner cavity of the cylinder body, and the upper end surface of the pressure measuring probe is provided with a pre-warning lamp, an air compression release assembly is further arranged on the upper end face of the cylinder cover and close to the edge of one side, the air compression release assembly is respectively composed of a limiting ring, an arc-shaped loading cylinder, a pressure cylinder, a top cylinder and a transverse loading rod, the top cylinder is connected to the upper end of the pressure cylinder, the transverse loading rod is further mounted in the inner cavity of the pressure cylinder, and one end of the cylinder body is connected with an auxiliary pressure adjusting structure;
the auxiliary pressure adjusting structure comprises an air inlet cylinder assembly and an exhaust box assembly, the air inlet cylinder assembly is respectively composed of an air inlet cylinder body, a hydraulic cylinder, an air storage chamber, an air conveying pipeline and a valve pipe, the hydraulic cylinder is installed on the upper end face of the air inlet cylinder body, a hydraulic push rod is arranged at the output end of the hydraulic cylinder, the bottom end of the hydraulic push rod extends into the inner cavity of the air inlet cylinder body and is connected with a hydraulic push plate, the air storage chamber is installed at the bottom end of the air inlet cylinder body and is connected with the air storage chamber through the air conveying pipeline, an electromagnetic control valve is arranged on the outer side of the air conveying pipeline, and the output end of the air storage chamber is connected with the exhaust box assembly;
an oil blocking and gas dispersing net is fixedly arranged in an inner cavity of the limiting ring, the bottom end of the oil blocking and gas dispersing net is communicated with the inner cavity of the barrel, a plurality of groups of elastic parts are sequentially arranged at the upper end of the limiting ring along the circumferential direction, the limiting ring is connected with the arc-shaped carrier through the elastic parts, a plurality of groups of elastic buffer blocks are fixedly arranged around the inner wall of the arc-shaped carrier, and the upper end face of the arc-shaped carrier is connected with a pressure barrel;
a sliding piston body is arranged in an inner cavity of the pressure cylinder, a sliding ejector rod is arranged at the top end of the sliding piston body, the upper end of the inner cavity of the top cylinder is connected with the sliding ejector rod through a compression elastic piece, a transverse loading rod is connected to the outer side of the sliding ejector rod, a long sliding rod is arranged at the upper end of the transverse loading rod, the top end of the long sliding rod extends to the outer side of the top cylinder, a transverse rod is arranged on one side, close to the air inlet cylinder, of the outer wall of the long sliding;
an air inlet long pipe is arranged at the air inlet end of the air inlet cylinder body, a valve pipe is arranged on the outer side of the inner cavity of the air inlet long pipe, an air inlet valve cavity is arranged in the inner cavity of the valve pipe, and two groups of air inlets are symmetrically arranged at the bottom end of the inner cavity of the air inlet valve cavity;
the two ends of the air inlet valve cavity are respectively communicated with the barrel body and the air inlet barrel body through air inlets, an air baffle plate is movably arranged in the inner cavity of the air inlet valve cavity, and the bottom end of the vertical rod extends into the air inlet valve cavity and is connected with the air baffle plate.
Further, the exhaust box subassembly includes exhaust box and motor, installs three sets of rotating vane in the inner chamber of exhaust box, and is provided with the motor on the outer wall of one side of exhaust box, and the output of motor is provided with three sets of pivots, and the one end of pivot is stretched into in the inner chamber of exhaust box and is connected rotating vane, and the exhaust box is close to one side of transformer main part and has been seted up out the wind groove, goes out the inner chamber of inboard intercommunication exhaust box in wind groove.
The invention provides another technical scheme that: the implementation method of the pressure release mechanism for the oil-immersed transformer capable of preventing leakage comprises the following steps:
s1: the pressure in the cylinder is monitored in real time by using an induction probe at the bottom side of the pressure measuring probe, and if the pressure is lower, the pressure is directly discharged by using the air dispersing hole;
s2: when the pressure is gradually increased, the arc-shaped carrying cylinder is jacked upwards and the pressure is released to the periphery by utilizing the rising clearance of the arc-shaped carrying cylinder, if the internal pressure of the cylinder body exceeds a certain threshold value and the air flow continuously jacks up the sliding piston body upwards, the vertical rod connected with the bottom end of the cross rod can lift the air baffle plate upwards and is communicated with the air inlet hole, so that the redundant air flow flows into the air inlet cylinder body through the air inlet long pipe;
s3: when the pressure exceeds a threshold value and the air flow enters the air inlet cylinder, an electromagnetic control valve and a hydraulic cylinder are synchronously opened, the hydraulic push plate is driven by the hydraulic cylinder to move downwards, the pressure at the bottom of the inner cavity of the air inlet cylinder rises, and the air flow in the cylinder is conveyed to an air storage chamber through an air conveying pipeline for pressure relief;
s4: the motor is started and is used for driving the rotating blade to rotate for a certain angle, so that the contact area between the rotating blade and the exhaust box is changed, the air output and the pressure relief speed are indirectly controlled, and the air can be blown out through the air outlet groove after the pressure relief is carried out on the air flow and the surface of the transformer main body and the surface of the transformer oil cylinder are cooled.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a pressure releasing mechanism for an oil-immersed transformer capable of preventing leakage and an implementation method thereof.A plurality of groups of elastic buffer blocks are fixedly arranged around the inner wall of an arc-shaped carrier, a sliding ejector rod is arranged at the top end of a sliding piston body, and the upper end of the inner cavity of a top cylinder is connected with the sliding ejector rod through a compression elastic piece, so that when a pressure measuring probe measures the pressure in the cylinder body, if the internal pressure is overlarge, a warning lamp starts to work, and simultaneously, the raised air flow passes through an oil blocking and air dispersing net and pushes the arc-shaped carrier upwards and stretches the elastic piece Buffering, the clearance that utilizes arc carrier to rise at last escapes to all around, compares with traditional pressure release device, can carry out the energy dissipation to the air current of release and handle, avoids producing direct impact to operator or other installation positions of device because the too big velocity of flow that produces of oil tank internal pressure when releasing, influences its life.
2. The invention provides a pressure releasing mechanism for an oil-immersed transformer capable of preventing leakage and an implementation method thereof, wherein two ends of an air inlet valve cavity are respectively communicated with a cylinder body and an air inlet cylinder body through air inlets, an air baffle plate is movably arranged in an inner cavity of the air inlet valve cavity, the bottom end of a vertical rod extends into the air inlet valve cavity and is connected with the air baffle plate, so that when the detected internal pressure of the cylinder body is too small, the cylinder body can be directly discharged through an air dispersing hole for pressure release, if the internal pressure of the cylinder body is increased, an arc-shaped carrying cylinder can be jacked upwards and pressure can be released to the periphery by utilizing the rising gap of the arc-shaped carrying cylinder, if the internal pressure of the cylinder body exceeds a certain threshold value, and airflow continuously jacks up a sliding piston body upwards, at the moment, a transverse carrying rod connected with a sliding ejector rod can simultaneously drive a long sliding rod and a transverse rod to move upwards, and the vertical rod connected with the bottom end of the transverse rod can lift the air baffle plate upwards and is communicated with the air inlets so that redundant airflow can flow into the air inlet cylinder body through an air inlet long pipe, at this time, pressure can be released at a plurality of positions simultaneously, and the pressure releasing efficiency of the device is effectively improved.
3. The invention provides a pressure releasing mechanism for an oil-immersed transformer capable of preventing leakage and an implementation method thereof, wherein one end of a rotating shaft extends into an inner cavity of an exhaust box and is connected with a rotating blade, an air outlet groove is formed in one side of the exhaust box, which is close to a transformer main body, and the inner side of the air outlet groove is communicated with the inner cavity of the exhaust box, so that when the pressure exceeds a threshold value and air flow enters an air inlet cylinder, an electromagnetic control valve and a hydraulic cylinder can be synchronously opened, a hydraulic push plate is driven by the hydraulic cylinder to move downwards, the pressure at the bottom of the inner cavity of the air inlet cylinder is increased, the air flow in the cylinder is conveyed into an air storage cavity through an air conveying pipeline to be decompressed, meanwhile, the rotating blade can be driven by a motor to rotate for a certain angle, the contact area between the rotating blade and the exhaust box is changed, the air outlet quantity and the decompression speed are indirectly controlled, and the air flow can be blown out through the air outlet groove and the surface of the transformer main body and the transformer oil cylinder is cooled, and in the process of cooling the transformer main body and the transformation oil cylinder, the internal pressure is also reduced.
Drawings
Fig. 1 is a schematic diagram of a raised state structure of an arc-shaped carrier of a pressure release mechanism for an oil-immersed transformer capable of preventing leakage according to the present invention;
FIG. 2 is a schematic diagram of an initial state structure of an arc-shaped carrier of the pressure release mechanism for the oil-immersed transformer capable of preventing leakage according to the present invention;
FIG. 3 is a schematic structural diagram of a transformer oil cylinder of the pressure release mechanism for the leakage-proof oil-immersed transformer according to the present invention;
fig. 4 is a schematic view of an internal planar structure of a puffer module of the pressure release mechanism for the anti-leakage oil-immersed transformer according to the present invention;
fig. 5 is an enlarged schematic structural diagram of a portion a in fig. 4 of the pressure release mechanism for the oil-immersed transformer capable of preventing leakage according to the present invention;
FIG. 6 is a side view of an internal plan view of an auxiliary pressure adjustment structure of the leakage-proof pressure release mechanism for an oil-immersed transformer according to the present invention;
FIG. 7 is a front interior plan view of an exhaust tank assembly of the leak resistant pressure relief mechanism for an oil immersed transformer of the present invention;
FIG. 8 is a front view of an internal plan view of an auxiliary pressure adjustment structure of the pressure release mechanism for an oil-immersed transformer according to the present invention;
fig. 9 is a schematic view of the internal planar structure of the valve tube of the pressure release mechanism for the oil-immersed transformer capable of preventing leakage according to the present invention.
In the figure: 1. a pressure-variable bearing oil cylinder release structure; 11. a transformer body; 12. a pressure-variable oil cylinder; 121. a cylinder cover; 1211. air diffusing holes; 122. a barrel; 123. a fixed flange; 124. a pressure measuring probe; 1241. an inductive probe; 1242. an early warning light; 13. a compressed air release assembly; 131. a limiting ring; 1311. an oil blocking and air dispersing net; 1312. an elastic member; 132. an arc-shaped carrier; 1321. an elastic buffer block; 133. a pressure cylinder; 1331. a sliding piston body; 13311. sliding the ejector rod; 134. a top cylinder; 1341. compressing the elastic member; 135. a transverse carrying rod; 1351. a long slide bar; 1352. a cross bar; 13521. a vertical rod; 2. an auxiliary pressure adjusting structure; 21. an air intake barrel assembly; 211. an air inlet cylinder; 2111. an air inlet long pipe; 212. a hydraulic cylinder; 2121. a hydraulic push rod; 21211. hydraulic push plate; 213. a gas storage chamber; 214. a gas pipeline; 2141. an electromagnetic control valve; 215. a valve tube; 2151. a gas inlet valve cavity; 21511. an air inlet; 21512. a gas baffle; 22. an exhaust box assembly; 221. an exhaust box; 2211. a rotating blade; 2212. an air outlet groove; 222. a motor; 2221. a rotating shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a pressure releasing mechanism for an oil-immersed transformer capable of preventing leakage includes a pressure-varying oil-bearing cylinder releasing structure 1 and an auxiliary pressure adjusting structure 2, one end of the pressure-varying oil-bearing cylinder releasing structure 1 is connected with the auxiliary pressure adjusting structure 2, the pressure-varying oil-bearing cylinder releasing structure 1 includes a transformer main body 11, a pressure-varying oil cylinder 12 and a pressure-compressing releasing assembly 13, the upper end surface of the transformer main body 11 is installed with the pressure-varying oil cylinder 12, the pressure-varying oil cylinder 12 is respectively composed of a cylinder cover 121, a cylinder body 122, a fixing flange 123 and a pressure measuring probe 124, the cylinder body 122 is installed at the bottom end of the cylinder cover 121, the fixing flange 123 is installed at the bottom end of the cylinder body 122, the cylinder body 122 is screwed with the transformer main body 11 through the fixing flange 123, the cylinder cover 121 is provided with a plurality of air-diffusing holes 1211 on the surface thereof, the pressure measuring probe 124 is inserted on the outer side thereof, the pressure measuring probe 124 is provided with an induction probe 1241 at the bottom end thereof, the lower end of the induction probe 1241 penetrates through the cylinder cover 121 and extends into the inner cavity of the cylinder body 122, and the upper end face of the pressure measuring probe 124 is provided with an early warning lamp 1242, the upper end face of the cylinder cover 121 and the position close to one side edge are further provided with an air compression release assembly 13, the air compression release assembly 13 is respectively composed of a limiting ring 131, an arc-shaped loading cylinder 132, a pressure cylinder 133, a top cylinder 134 and a transverse loading rod 135, the upper end of the pressure cylinder 133 is connected with the top cylinder 134, the inner cavity of the pressure cylinder 133 is further provided with the transverse loading rod 135, and one end of the cylinder 122 is connected with an auxiliary pressure adjusting structure 2.
Referring to fig. 2 and fig. 6-9, the leakage-proof pressure release mechanism for an oil-immersed transformer, the auxiliary pressure adjustment structure 2 includes an air inlet cylinder assembly 21 and an air exhaust box assembly 22, the air inlet cylinder assembly 21 is respectively composed of an air inlet cylinder 211, a hydraulic cylinder 212, an air storage chamber 213, an air transmission pipeline 214 and a valve tube 215, the hydraulic cylinder 212 is installed on the upper end surface of the air inlet cylinder 211, the output end of the hydraulic cylinder 212 is provided with a hydraulic push rod 2121, the bottom end of the hydraulic push rod 2121 extends into the inner cavity of the air inlet cylinder 211 and is connected with a hydraulic push plate 21211, the air storage chamber 213 is installed at the bottom end of the air inlet cylinder 211 and is connected with the air storage chamber 213 through the air transmission pipeline 214, the outer side of the air transmission pipeline 214 is provided with an electromagnetic control valve 2141, and the output end of the air storage chamber 213 is connected with the air exhaust box assembly 22; an air inlet long pipe 2111 is arranged at the air inlet end of the air inlet cylinder body 211, a valve pipe 215 is arranged on the outer side of the inner cavity of the air inlet long pipe 2111, an air inlet valve cavity 2151 is arranged in the inner cavity of the valve pipe 215, and two groups of air inlets 21511 are symmetrically arranged at the bottom end of the inner cavity of the air inlet valve cavity 2151; the two ends of the air inlet valve chamber 2151 are respectively communicated with the cylinder 122 and the air inlet cylinder 211 through the air inlet 21511, and an air baffle plate 21512 is movably mounted in the inner cavity of the air inlet valve chamber 2151, the bottom ends of the vertical rods 13521 extend into the air inlet valve chamber 2151 and are connected with the air baffle plate 21512, so that when the detected internal pressure of the cylinder 122 is too small, the cylinder 122 can be directly discharged through the air diffusing holes 1211 for pressure relief, if the internal pressure of the cylinder 122 is increased, the arc-shaped cylinder 132 can be jacked upwards and the pressure can be relieved to the periphery by utilizing the rising gap of the arc-shaped cylinder 132, if the internal pressure of the cylinder 122 exceeds a certain threshold value, and the air flow continuously jacks up the sliding piston body 1331, at this time, the horizontal loading rod 135 connected with the sliding push rod 13311 will simultaneously drive the long sliding rods 1351 and the cross rods 1352 to move upwards, and the vertical rods 13521 connected with the bottom ends of the cross rods 1352 will lift the air baffle plate 21512 upwards and communicate with the air inlet holes 21511, so that the surplus air flow can flow into the air inlet cylinder 211 through the air inlet pipe 2111 and communicate with each other, at the moment, pressure can be released at a plurality of positions simultaneously, and the pressure releasing efficiency of the device is effectively improved; the exhaust box assembly 22 includes an exhaust box 221 and a motor 222, three sets of rotating blades 2211 are installed in an inner cavity of the exhaust box 221, the motor 222 is installed on an outer wall of one side of the exhaust box 221, three sets of rotating shafts 2221 are installed at an output end of the motor 222, one end of each rotating shaft 2221 extends into the inner cavity of the exhaust box 221 and is connected with the corresponding rotating blade 2211, an air outlet slot 2212 is formed in one side of the exhaust box 221, which is close to the transformer body 11, and an inner side of the air outlet slot 2212 is communicated with the inner cavity of the exhaust box 221, so that when the pressure exceeds a threshold value and an air flow enters the air inlet cylinder 211, the electromagnetic control valve 2141 and the hydraulic cylinder 212 can be synchronously opened, the hydraulic push plate 21211 is driven by the hydraulic cylinder 212 to move downwards, the pressure at the bottom of the inner cavity 211 of the air inlet cylinder rises, the air flow in the cylinder is conveyed into the air storage chamber 213 through the air conveying pipeline 214 to be decompressed, and the rotating blades 2211 can be driven by the motor 222 to rotate by a certain angle, therefore, the contact area between the rotating blade 2211 and the exhaust box 221 is changed, the air output and the pressure relief speed are indirectly controlled, the air can be blown out by the air outlet slot 2212 after the air flow is relieved, the surfaces of the transformer main body 11 and the transformation oil cylinder 12 are cooled, and the internal pressure is reduced along with the temperature reduction process of the transformer main body 11 and the transformation oil cylinder 12.
Referring to fig. 4-5, in the pressure release mechanism for the anti-leakage oil-immersed transformer, an oil blocking and air dispersing net 1311 is fixedly arranged in an inner cavity of a limit ring 131, the bottom end of the oil blocking and air dispersing net 1311 is communicated with an inner cavity of a cylinder 122, a plurality of groups of elastic members 1312 are sequentially arranged at the upper end of the limit ring 131 along the circumferential direction, the limit ring 131 is connected with an arc-shaped carrier 132 through the elastic members 1312, a plurality of groups of elastic buffer blocks 1321 are fixedly arranged around the inner wall of the arc-shaped carrier 132, and the upper end face of the arc-shaped carrier 132 is connected with a pressure cylinder 133; a sliding piston body 1331 is arranged in the inner cavity of the pressure cylinder 133, a sliding ejector rod 13311 is arranged at the top end of the sliding piston body 1331, and the upper end of the inner cavity of the top cylinder 134 is connected with the sliding ejector rod 13311 through a compression elastic member 1341, so that when the pressure probe 124 measures the interior of the cylinder 122, if the internal pressure is too high, the early warning lamp 1242 starts to work, and at the same time, the rising air flow passes through the oil and gas blocking net 1311 and pushes the arc-shaped carrier 132 upwards and stretches the elastic member 1312, because the inner wall of the arc-shaped carrier 132 is arc-shaped and the inner wall thereof is attached with an elastic buffer block 1321, the sprayed air flow can be buffered for the first time, and at the same time, the air flow can continue to rise and push the sliding piston body 1331 upwards, the sliding piston body 1331 can continue to move towards the direction of the top cylinder 134 by the thrust generated by the air flow upwards and compress the elastic member 1341, and at the sliding piston body 1331 can perform secondary buffering to the rising air flow by the reaction force generated downwards by the compression elastic member 1341, finally, the gap lifted by the arc-shaped carrier 132 is utilized to escape to the periphery, compared with the traditional pressure release device, the device can dissipate the energy of the released airflow, and avoids the phenomenon that direct impact is generated on operators or other installation parts of the device due to the fact that the pressure in the oil tank is too high and the fast flow speed is generated when the pressure is released, so that the service life of the device is influenced, the outer side of the sliding ejector rod 13311 is connected with the transverse carrier rod 135, the upper end of the transverse carrier rod 135 is provided with a long sliding rod 1351, the top end of the long sliding rod 1351 extends to the outer side of the top cylinder 134, the side, close to the air inlet cylinder body 211, of the outer wall of the long sliding rod 1351 is provided with a cross rod 1352, and the bottom end of the cross rod 1352 is connected with a vertical rod 13521.
In order to better show the implementation process of the pressure release mechanism for the oil-immersed transformer capable of preventing leakage, the embodiment now provides an implementation method of the pressure release mechanism for the oil-immersed transformer capable of preventing leakage, which includes the following steps:
the method comprises the following steps: the pressure in the cylinder 122 is monitored in real time by using the sensing probe 1241 at the bottom side of the pressure measuring probe 124, and if the pressure is smaller, the pressure is directly discharged by using the air vent 1211;
step two: when the pressure gradually increases, the arc-shaped carrying cylinder 132 is lifted upwards and the pressure is released to the surrounding by the lifted clearance, if the internal pressure of the cylinder 122 exceeds a certain threshold value and the air flow continuously lifts the sliding piston body 1331 upwards, the vertical rod 13521 connected to the bottom end of the cross rod 1352 lifts the air baffle 21512 upwards and communicates with the air inlet hole 21511, so that the redundant air flow flows into the air inlet cylinder 211 through the air inlet pipe 2111;
step three: when the pressure exceeds the threshold value and the air flow enters the air inlet cylinder body 211, the electromagnetic control valve 2141 and the hydraulic cylinder 212 are synchronously opened, the hydraulic push plate 21211 is driven to move downwards by the hydraulic cylinder 212, the pressure at the bottom of the inner cavity of the air inlet cylinder body 211 rises, and the air flow in the cylinder is conveyed to the air storage chamber 213 through the air conveying pipeline 214 for pressure relief;
step four: the motor 222 is turned on, and the motor 222 drives the rotary blade 2211 to rotate for a certain angle, so that the contact area between the rotary blade 2211 and the exhaust box 221 is changed, the air output and the pressure relief speed are indirectly controlled, and after the air flow is relieved, the air can be blown out through the air outlet slot 2212, and the temperature of the surfaces of the transformer body 11 and the transformer oil cylinder 12 is reduced.
In summary, the following steps: the invention provides a pressure releasing mechanism for an oil-immersed transformer capable of preventing leakage and an implementation method thereof, wherein a transformer oil cylinder 12 is arranged on the upper end surface of a transformer main body 11, a cylinder body 122 is arranged on the bottom end of a cylinder cover 121, a fixing flange 123 is arranged on the bottom end of the cylinder body 122, the cylinder body 122 is screwed with the transformer main body 11 through the fixing flange 123, a plurality of groups of air diffusion holes 1211 are arranged on the surface of the cylinder cover 121, a pressure measuring probe 124 is inserted and connected on the outer side of the cylinder cover, an induction probe 1241 is arranged on the bottom end of the pressure measuring probe 124, the lower end of the induction probe 1241 penetrates through the cylinder cover 121 and extends into the inner cavity of the cylinder body 122, a pre-warning lamp 1242 is arranged on the upper end surface of the pressure measuring probe 124, an air compression releasing component 13 is also arranged on the upper end surface of the cylinder cover 121 and close to one side edge, a plurality of elastic buffer blocks 1321 are fixedly arranged around the inner wall 133of an arc-shaped carrier 132, a sliding push rod 13311 is arranged on the top end of the sliding piston body 1, and the upper end of the inner cavity of the top cylinder 133134 is connected with the sliding push rod 13311 through a compression elastic component 1341, when the pressure measuring probe 124 measures the pressure inside the cylinder 122, if the internal pressure is too high, the warning light 1242 starts to operate, and at the same time, the rising air flow passes through the oil and gas blocking net 1311 and pushes the arc-shaped carrier 132 upwards and stretches the elastic member 1312, because the inner wall of the arc-shaped carrier 132 is arc-shaped and the inner wall thereof is attached with the elastic buffer block 1321, the ejected air flow can be buffered for one time, and at the same time, the air flow can continue to rise and push the sliding piston body 1331 upwards, the sliding piston body 1331 can continue to move towards the top cylinder 134 and extrude the compression elastic member 1341 by the thrust generated by the air flow upwards, and at the same time, the sliding piston body 1331 can perform secondary buffering on the rising air flow by the reaction force generated downwards by the compression elastic member 1341, and finally, the gap raised by the arc-shaped carrier 132 escapes to the periphery, compared with the conventional pressure releasing device, the energy can be removed from the released air flow, avoiding direct impact on operators or other installation parts of the device due to faster flow speed generated when the internal pressure of the oil tank is too high and releasing the internal pressure, and influencing the service life of the device, the upper end of the pressure cylinder 133 is connected with a top cylinder 134, a cross loading rod 135 is also installed in the inner cavity of the pressure cylinder 133, one end of the cylinder 122 is connected with an auxiliary pressure adjusting structure 2, the upper end surface of the air inlet cylinder 211 is provided with a hydraulic cylinder 212, the output end of the hydraulic cylinder 212 is provided with a hydraulic push rod 2121, the bottom end of the hydraulic push rod 2121 extends into the inner cavity of the air inlet cylinder 211 and is connected with a hydraulic push plate 21211, the bottom end of the air inlet cylinder 211 is provided with an air storage chamber 213 which is connected with the air storage chamber 213 through an air transmission pipeline 214, the outer side of the air transmission pipeline 214 is provided with an electromagnetic control valve 2141, the two ends of the air inlet chamber 2151 are respectively communicated with the cylinder 122 and the air inlet cylinder 211 through an air inlet 21511, and an air blocking plate 21512 is movably installed in the inner cavity of the air inlet valve 2151, the bottom end of the vertical rod 13521 extends into the air inlet valve chamber 2151 and is connected to the air baffle 21512, so that when the internal pressure of the cylinder 122 is too low, the air can be directly discharged through the air outlet 1211 for pressure relief, if the internal pressure of the cylinder 122 is increased, the arc-shaped carrying cylinder 132 can be jacked up and can utilize the raised gap to release pressure to the periphery, if the internal pressure of the cylinder 122 exceeds a certain threshold value and the air flow continuously jacks up the sliding piston body 1331, the horizontal carrying rod 135 connected to the sliding jacking rod 13311 can simultaneously drive the long sliding rod 1351 and the horizontal rod 1352 to move upwards, the vertical rod 13521 connected to the bottom end of the horizontal rod 1352 can lift the air baffle 21512 upwards and communicate with the air inlet 21511, so that the redundant air flow flows into the air inlet cylinder 211 through the air inlet long pipe 2111, at the plurality of points can simultaneously release pressure, the pressure relief efficiency of the device is effectively improved, the output end of the air storage chamber 213 is connected to the air outlet box assembly 22, one end of the rotating shaft 2221 extends into the inner cavity of the air outlet box 221 and is connected to the rotating blade 2211, and the side of the exhaust box 221 close to the transformer body 11 is provided with an air outlet slot 2212, the inner side of the air outlet slot 2212 is communicated with the inner cavity of the exhaust box 221, so that when the pressure exceeds the threshold value and the air flow enters the air inlet cylinder 211, the electromagnetic control valve 2141 and the hydraulic cylinder 212 can be synchronously opened, the hydraulic push plate 21211 is driven by the hydraulic cylinder 212 to move downwards, the pressure at the bottom of the inner cavity of the air inlet cylinder 211 is increased, the air flow in the cylinder is conveyed to the air storage chamber 213 through the air conveying pipeline 214 for pressure relief, meanwhile, the motor 222 can be used for driving the rotary blade 2211 to rotate for a certain angle, so that the contact area between the rotary blade 2211 and the exhaust box 221 is changed, the air outlet amount and the pressure relief speed are indirectly controlled, the air flow can be blown out by the air outlet slot 2212 after pressure relief, the surfaces of the transformer body 11 and the transformation oil cylinder 12 are cooled, and the temperature of the transformer body 11 and the transformation oil cylinder 12 are cooled, the internal pressure is also reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (3)

1. Can prevent pressure release mechanism for oil-immersed transformer that reveals, bear oil drum release structure (1) and auxiliary pressure adjustment structure (2) including the vary voltage, the one end that oil drum release structure (1) was born in the vary voltage is connected with auxiliary pressure adjustment structure (2), its characterized in that: the pressure-variable bearing oil cylinder release structure (1) comprises a transformer main body (11), a pressure-variable oil cylinder (12) and a pressure-compressing release assembly (13), wherein the pressure-variable oil cylinder (12) is installed on the upper end face of the transformer main body (11), the pressure-variable oil cylinder (12) is respectively composed of a cylinder cover (121), a cylinder body (122), a fixing flange (123) and a pressure-measuring probe (124), the cylinder body (122) is installed at the bottom end of the cylinder cover (121), the fixing flange (123) is arranged at the bottom end of the cylinder body (122), the cylinder body (122) is in bolt connection with the transformer main body (11) through the fixing flange (123), a plurality of groups of air-diffusing holes (1211) are formed in the surface of the cylinder cover (121), the pressure-measuring probe (124) is inserted and connected with the pressure-measuring probe (124) at the outer side thereof, an induction probe (1241) is arranged at the bottom end of the pressure-measuring probe (124), the lower end of the induction probe (1241) penetrates through the cylinder cover (121) and extends into the inner cavity of the cylinder body (122), and a pre-warning lamp (1242) is installed on the upper end face of the pressure-measuring probe (124), an air compression release assembly (13) is further arranged on the upper end face of the cylinder cover (121) and close to one side edge, the air compression release assembly (13) is respectively composed of a limiting ring (131), an arc-shaped loading cylinder (132), a pressure cylinder (133), a top cylinder (134) and a transverse loading rod (135), the top cylinder (134) is connected to the upper end of the pressure cylinder (133), the transverse loading rod (135) is further installed in the inner cavity of the pressure cylinder (133), and one end of the cylinder body (122) is connected with an auxiliary pressure adjusting structure (2);
the auxiliary pressure adjusting structure (2) comprises an air inlet cylinder assembly (21) and an exhaust box assembly (22), the air inlet cylinder assembly (21) is composed of an air inlet cylinder body (211), a hydraulic cylinder (212), an air storage cavity (213), an air transmission pipeline (214) and a valve pipe (215) respectively, the hydraulic cylinder (212) is installed on the upper end face of the air inlet cylinder body (211), a hydraulic push rod (2121) is arranged at the output end of the hydraulic cylinder (212), the bottom end of the hydraulic push rod (2121) extends into the inner cavity of the air inlet cylinder body (211) and is connected with a hydraulic push plate (21211), an air storage cavity (213) is installed at the bottom end of the air inlet cylinder body (211) and is connected with the air storage cavity (213) through the air transmission pipeline (214), an electromagnetic control valve (2141) is arranged on the outer side of the air transmission pipeline (214), and the output end of the air storage cavity (213) is connected with the exhaust box assembly (22);
an oil blocking and air dispersing net (1311) is fixedly arranged in an inner cavity of the limiting ring (131), the bottom end of the oil blocking and air dispersing net (1311) is communicated with an inner cavity of the barrel body (122), a plurality of groups of elastic pieces (1312) are sequentially arranged at the upper end of the limiting ring (131) along the circumferential direction, the limiting ring (131) is connected with the arc-shaped carrier (132) through the elastic pieces (1312), a plurality of groups of elastic buffer blocks (1321) are fixedly arranged around the inner wall of the arc-shaped carrier (132), and the upper end face of the arc-shaped carrier (132) is connected with the pressure barrel (133);
a sliding piston body (1331) is arranged in an inner cavity of the pressure cylinder (133), a sliding ejector rod (13311) is arranged at the top end of the sliding piston body (1331), the upper end of the inner cavity of the top cylinder (134) is connected with the sliding ejector rod (13311) through a compression elastic piece (1341), a transverse carrying rod (135) is connected to the outer side of the sliding ejector rod (13311), a long sliding rod (1351) is arranged at the upper end of the transverse carrying rod (135), the top end of the long sliding rod (1351) extends to the outer side of the top cylinder (134), a cross rod (1352) is arranged on one side, close to the air inlet cylinder body (211), of the outer wall of the long sliding rod (1351), and a vertical rod (13521) is connected to the bottom end of the cross rod (1352);
an air inlet long pipe (2111) is arranged at the air inlet end of the air inlet cylinder body (211), a valve pipe (215) is arranged on the outer side of the inner cavity of the air inlet long pipe (2111), an air inlet valve cavity (2151) is arranged in the inner cavity of the valve pipe (215), and two groups of air inlets (21511) are symmetrically arranged at the bottom end of the inner cavity of the air inlet valve cavity (2151);
the two ends of the air inlet valve cavity (2151) are respectively communicated with the cylinder body (122) and the air inlet cylinder body (211) through the air inlet holes (21511), an air baffle plate (21512) is movably mounted in the inner cavity of the air inlet valve cavity (2151), and the bottom end of the vertical rod (13521) extends into the air inlet valve cavity (2151) and is connected with the air baffle plate (21512).
2. The pressure relief mechanism for a leak resistant oil filled transformer of claim 1, wherein: exhaust case subassembly (22) are including exhaust case (221) and motor (222), install three sets of rotating vane (2211) in the inner chamber of exhaust case (221), and be provided with motor (222) on the one side outer wall of exhaust case (221), the output of motor (222) is provided with three sets of pivot (2221), the one end of pivot (2221) stretches into in the inner chamber of exhaust case (221) and connects rotating vane (2211), and exhaust case (221) are close to one side of transformer main part (11) and have been seted up air-out groove (2212), the inner chamber of air-out groove (2212) inboard intercommunication exhaust case (221).
3. A method of implementing a pressure relief mechanism for a leak resistant oil filled transformer as set forth in claim 2, comprising the steps of:
s1: the pressure in the cylinder body (122) is monitored in real time by using an induction probe (1241) at the bottom side of the pressure measuring probe (124), and if the pressure is smaller, the pressure is directly discharged by using the air diffusion hole (1211);
s2: when the pressure is gradually increased, the arc-shaped carrying cylinder (132) is jacked upwards and the pressure is released to the periphery by utilizing the rising clearance, if the internal pressure of the cylinder body (122) exceeds a certain threshold value and the air flow continuously jacks up the sliding piston body (1331), the vertical rod (13521) connected with the bottom end of the cross rod (1352) can lift the air baffle plate (21512) upwards and is communicated with the air inlet hole (21511) so that the redundant air flow flows into the air inlet cylinder body (211) through the air inlet long pipe (2111);
s3: when the pressure exceeds a threshold value and the air flow enters the air inlet cylinder body (211), an electromagnetic control valve (2141) and a hydraulic cylinder (212) are synchronously opened, the hydraulic push plate (21211) is driven to move downwards by the hydraulic cylinder (212), the pressure at the bottom of the inner cavity of the air inlet cylinder body (211) rises, and the air flow in the cylinder is conveyed to the air storage chamber (213) through an air conveying pipeline (214) for pressure relief;
s4: the motor (222) is started and the motor (222) is used for driving the rotating blade (2211) to rotate for a certain angle, so that the contact area of the rotating blade (2211) and the exhaust box (221) is changed, the air output and the pressure relief speed are indirectly controlled, and after the air flow is relieved, the air can be blown out through the air outlet groove (2212) and the surfaces of the transformer main body (11) and the transformer oil cylinder (12) are cooled.
CN202110969696.9A 2021-08-23 2021-08-23 Leakage-proof pressure release mechanism for oil-immersed transformer and implementation method thereof Active CN113418040B (en)

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CN114646422A (en) * 2022-03-09 2022-06-21 刘梓航 Instrument oil pressure seat with high sealing performance for oil field
CN114857779A (en) * 2022-04-26 2022-08-05 安庆船用电器有限责任公司 Fluid heater for ship
CN115646092A (en) * 2022-11-23 2023-01-31 汇舸(南通)环保设备有限公司 Gas self-guiding desulfurization equipment for ship tail gas purification

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US20140266529A1 (en) * 2011-10-11 2014-09-18 Sentry Depressurization Systems, Inc. Depressurization system for an electrical transformer
CN205230724U (en) * 2015-09-11 2016-05-11 国网山东省电力公司博兴县供电公司 Pressure releasing device of transformer
CN212672496U (en) * 2020-07-20 2021-03-09 广东贝斯特电气有限公司 Pressure release device for oil-immersed transformer
CN113007402A (en) * 2021-02-25 2021-06-22 孙泽中 Pressure release device for oil-immersed transformer

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CN103594232A (en) * 2013-11-15 2014-02-19 宁夏天地经纬电力设备工程有限公司 Oil-immersed transformer
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CN114646422A (en) * 2022-03-09 2022-06-21 刘梓航 Instrument oil pressure seat with high sealing performance for oil field
CN114857779A (en) * 2022-04-26 2022-08-05 安庆船用电器有限责任公司 Fluid heater for ship
CN115646092A (en) * 2022-11-23 2023-01-31 汇舸(南通)环保设备有限公司 Gas self-guiding desulfurization equipment for ship tail gas purification
CN115646092B (en) * 2022-11-23 2023-07-21 汇舸(南通)环保设备有限公司 Desulfurizing equipment for purifying tail gas of gas self-guiding ship

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