CN217784316U - Pressure release device for oil-immersed power equipment - Google Patents
Pressure release device for oil-immersed power equipment Download PDFInfo
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- CN217784316U CN217784316U CN202221539985.1U CN202221539985U CN217784316U CN 217784316 U CN217784316 U CN 217784316U CN 202221539985 U CN202221539985 U CN 202221539985U CN 217784316 U CN217784316 U CN 217784316U
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 51
- 230000009471 action Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 7
- 239000012528 membrane Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- 230000009172 bursting Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of electric power system, concretely relates to a pressure release for oily formula power equipment. The oil tank is characterized by comprising a cylinder barrel, wherein the upper end of the cylinder barrel is sealed, the lower end opening of the cylinder barrel is communicated with the upper end of the oil tank and fixedly connected with the upper end of the oil tank through a flange plate, a pressure relief opening is formed in the circumferential direction of the lower portion of the cylinder barrel, and an explosion-proof film is arranged on the pressure relief opening; a valve disc is arranged in the cylinder barrel and divides the cylinder barrel into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring is coaxially arranged in the upper chamber; more than two spring limiting mechanisms are arranged on the circumferential direction of the middle part of the cylinder barrel, when a limiting lug of each spring limiting mechanism is positioned in the cylinder barrel, the circumferential direction of the valve disc is erected on the limiting lug, the valve disc is coaxially arranged on the middle part of the cylinder barrel, and the return spring is in a compression state; therefore the utility model discloses a pressure release device can greatly improve the pressure response speed and the ability of releasing to can realize secondary seal, prevent potential danger.
Description
Technical Field
The utility model belongs to the technical field of electric power system, concretely relates to a pressure release for oily formula power equipment.
Background
Oily formula power equipment arranges the oil tank in and adopts insulating oil to realize reliable insulation between the electrical components, and when insulating oily insulating nature descends, oily formula power equipment can inevitably appear low impedance fault, produces high energy arc discharge, and electric arc instantaneous vaporization, schizolysis insulating oil produce a large amount of gases, and then arouse high-pressure wave, and electric arc annex gas temperature can reach hundreds of degrees centigrade.
If the pressure in the oil tank can not be released in time, the overpressure will rapidly increase and exceed the bearing limits of the oil tank and the electrical equipment, and the electrical equipment and the oil tank are damaged. And after the oil tank is broken, high-temperature and high-pressure oil gas is sprayed out to cause huge personal safety threat to operators. Meanwhile, the sprayed high-temperature and high-pressure oil gas is in contact with air, so that the danger of combustion and explosion exists, and combustion products cause great pollution to the environment.
The residual oil gas in the fuel tank can be reversely guided by the combustion flame along the oil gas discharge channel, so that the secondary damage to the power equipment is caused. Therefore, the oil-immersed power equipment needs to discharge high-temperature and high-pressure oil gas timely and reliably. The speed of response and the ability to bleed are the main parameters of the pressure relief device. The over-slow response speed and the weak discharge capacity both cause the pressure accumulation in the oil tank, and the arc fault cannot be effectively protected. Meanwhile, in order to avoid the danger of secondary explosion, after the discharge is finished, the pressure release device needs to isolate the oil tank, so that the residual insulating oil in the oil tank is prevented from contacting the outside.
Common pressure relief valve devices include a pressure relief valve and an explosion proof membrane, but both fail to provide good protection against arc faults. The explosion-proof membrane can respond to pressure impact fast and open the discharge passage, but form the breach on the oil tank wall after the discharge, can't seal the oil tank, still can bring the potential safety hazard. The pressure release valve is a typical common pressure release device, is arranged on an oil tank of oil-immersed power equipment and is communicated with the oil tank, and high-pressure oil gas is released from a pressure release opening of the pressure release valve, so that the aims of reducing the internal pressure of the oil tank and protecting the oil tank and the power equipment are fulfilled. However, the existing pressure relief valve adopts a spring structure, has slow response speed and has the time for reaching the maximum relief capacity which is far longer than that of an explosion-proof membrane.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pressure release for oil-immersed power equipment can synthesize pressure release valve and rupture membrane advantage, and overcomes the novel pressure release valve of its defect, and this valve utilizes rupture membrane quick response arc discharge's performance characteristics, opens completely in the very short time behind arc discharge, and the valve disc can seal the oil tank and prevent insulating oil and external contact after the pressure release finishes simultaneously.
The utility model discloses a realize through following technical scheme: a pressure release device for oil-immersed power equipment comprises a cylinder barrel 1, wherein the upper end of the cylinder barrel 1 is sealed, the lower end opening of the cylinder barrel 1 is communicated with the upper end of an oil tank 2 and is fixedly connected with the upper end of the oil tank through a flange plate, a pressure relief opening 11 is formed in the circumferential direction of the lower portion of the cylinder barrel 1, and an explosion-proof membrane 12 is arranged on the pressure relief opening 11;
a valve disc 3 is arranged in the cylinder barrel 1 to divide the cylinder barrel 1 into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring 13 is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the middle part of the cylinder barrel 1 in the circumferential direction, when a limiting lug 41 of each spring limiting mechanism is positioned in the cylinder barrel 1, the circumferential direction of the valve disc 3 is overlapped on the limiting lug 41, the valve disc 3 is coaxially arranged on the middle part of the cylinder barrel 1, and the return spring 13 is in a compressed state;
when the oil tank 2 releases the pressure, the limiting convex block 41 of the spring limiting mechanism is punched out of the cylinder barrel 1, when the release is finished, the valve disc 3 falls to the bottom of the cylinder barrel 1, the lower port of the valve disc 3 and the lower port of the cylinder barrel 1 are in sealing fit, and the separation between the lower cavity and the oil tank 2 is realized.
Further, the valve disc 3 is in a short cylindrical shape, the outer cylindrical surface of the valve disc 3 is a stepped surface, the diameter of the lower part of the valve disc 3 is smaller than that of the upper part of the valve disc, when the limiting projection 41 of the spring limiting mechanism is positioned in the cylinder barrel 1, the upper part of the valve disc 3 is lapped on the limiting projection 41 and is in sealing contact with the side wall of the cylinder barrel 1 through the second sealing ring 42,
when the limiting projection 41 of the spring limiting mechanism is positioned outside the cylinder barrel 1, the lower part of the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1 through the first sealing ring 43.
Further, the upper end of valve disc 3 is equipped with down boss 31 for the lower extreme of answer spring 13 is spacing to be installed under on boss 31, the upper end of going up the cavity is equipped with boss 32, makes the upper end of answer spring 13 spacing to be installed on last boss 32.
Further, an annular lower groove 33 is formed in the upper end of the valve disc 3, so that the lower end of the return spring 13 is installed in the annular lower groove 33 in a limiting manner, and an annular upper groove 34 is formed in the upper end of the upper chamber, so that the upper end of the return spring 13 is installed in the annular upper groove 34 in a limiting manner.
Further, the valve disc 3 is a circular truncated cone, the outer edge of the top surface of the circular truncated cone is provided with a limit convex circle 35,
when the limiting convex block 41 of the spring limiting mechanism is positioned in the cylinder barrel 1, the side surface of the circular truncated cone is contacted with the limiting convex block 41, and the limiting convex circle 35 is lapped on the limiting convex block 41,
when the limiting convex block 41 of the spring limiting mechanism is positioned outside the cylinder barrel 1, the bottom of the circular truncated cone is in sealing fit with the lower port of the cylinder barrel 1 through the third sealing ring 44.
Furthermore, the valve disc 3 is a cylinder, and the cylinder opening of the cylinder is positioned at the lower end,
the bottom of lower cavity upwards is equipped with connecting sleeve 14, and when spring stop gear's spacing lug 41 was located cylinder 1, the lower port of valve disc 3 was set up on spacing lug 41, and when spring stop gear's spacing lug 41 was located outside cylinder 1, valve disc 3 was located cylinder 1 bottom to locate outside connecting sleeve 14 through the cooperation cover of third sealing washer 44.
Further, the spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit bump 41 under the pre-tightening force of the compression spring 46, so that the limit bump 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
Furthermore, the fixture block 45 and the limiting convex block 41 are flexibly connected through a rope.
Further, the upper end of the cylinder barrel 1 is a separate end cover 16, and the end cover 16 is locked and fixed through bolts.
The utility model has the advantages that:
the utility model relates to a pressure release device for oil-immersed power equipment,
when the power equipment breaks down, the pressure in the oil tank rises rapidly, when the oil pressure reaches a preset bursting pressure threshold value of the bursting diaphragm, the bursting diaphragm is damaged, and the main pressure relief channel is opened; meanwhile, the valve disc is jacked up, and the limiting lug is pushed out of the cylinder barrel to lose the limiting function; when the pressure of the oil tank is reduced, the valve disc moves downwards along the axial direction of the cylinder barrel until the bottom of the cylinder barrel under the action of the return spring and the gravity, and the valve disc is in sealing fit with the lower port of the cylinder barrel. Therefore, the utility model combines the advantages that the explosion-proof membrane can rapidly respond to pressure impact and rapidly and completely open the discharge channel, and the valve disc can seal the oil tank again after the discharge is finished; the pressure relief device has the advantages that the situation that the relief channel cannot be sealed by a single explosion-proof membrane after relief is avoided, the oil tank is directly communicated with the atmosphere, the defect that the pressure relief valve is slow in action response and cannot open the relief channel at once to the maximum is overcome, the pressure response speed and the relief capacity can be greatly improved by the pressure relief device, secondary sealing can be achieved, and potential danger is prevented.
Drawings
Fig. 1 is a schematic structural view of a pressure relief device according to embodiment 1 of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic diagram of a pressure relief process of a pressure release device for an oil-immersed power apparatus.
Fig. 4 is a schematic diagram of the present invention when the pressure relief of the pressure release device for oil-immersed power equipment is completed.
Fig. 5 is a schematic structural view of embodiment 2 of the present invention.
Fig. 6 is a schematic structural view of embodiment 3 of the present invention.
Fig. 7 is a schematic structural view of embodiment 4 of the present invention.
Fig. 8 is a schematic structural view of embodiment 5 of the present invention.
Fig. 9 is a schematic structural view of embodiment 6 of the present invention.
Fig. 10 is a schematic structural view of embodiment 7 of the present invention.
Wherein: the anti-explosion valve comprises a cylinder barrel 1, an oil tank 2, a valve disc 3, a pressure relief opening 11, an anti-explosion membrane 12, a return spring 13, a connecting sleeve 14, a horizontal bearing platform 15, an end cover 16, a limiting convex block 41, a second sealing ring 42, a first sealing ring 43, a third sealing ring 44, a clamping block 45, a compression spring 46, a baffle 47, a lower convex block 31, an upper convex block 32, an annular lower groove 33, an annular upper groove 34 and a limiting convex circle 35.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
Example 1
Referring to fig. 1 and 2, a pressure release device for oil-immersed power equipment comprises a cylinder barrel 1, wherein the upper end of the cylinder barrel 1 is sealed, the lower end port of the cylinder barrel 1 is communicated with the upper end of an oil tank 2 and fixedly connected with the upper end of the oil tank through a flange, a pressure relief opening 11 is formed in the circumferential direction of the lower portion of the cylinder barrel 1, and an explosion-proof membrane 12 is arranged on the pressure relief opening 11;
a valve disc 3 is arranged in the cylinder barrel 1 to divide the cylinder barrel 1 into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring 13 is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the middle part of the cylinder barrel 1 in the circumferential direction, when a limiting lug 41 of each spring limiting mechanism is positioned in the cylinder barrel 1, the circumferential direction of the valve disc 3 is overlapped on the limiting lug 41, the valve disc 3 is coaxially arranged on the middle part of the cylinder barrel 1, and the return spring 13 is in a compressed state;
when the oil tank 2 releases pressure, the limiting convex block 41 of the spring limiting mechanism is punched out of the cylinder barrel 1, so that the valve disc 3 is positioned at the bottom of the cylinder barrel 1, the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1, and the separation between the lower chamber and the oil tank 2 is realized.
The valve disc 3 is in a short cylindrical shape, the outer cylindrical surface of the valve disc 3 is a stepped surface, the diameter of the lower part of the valve disc 3 is smaller than that of the upper part of the valve disc, when a limiting lug 41 of the spring limiting mechanism is positioned in the cylinder barrel 1, the upper part of the valve disc 3 is erected on the limiting lug 41 and is in sealing contact with the side wall of the cylinder barrel 1 through a second sealing ring 42,
when the limiting projection 41 of the spring limiting mechanism is positioned outside the cylinder barrel 1, the lower part of the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1 through the first sealing ring 43.
The spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit bump 41 under the pre-tightening force of the compression spring 46, so that the limit bump 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
In operation, as shown in fig. 3 and 4, the rupture disk 12 is first ruptured by a pressure impact, the pressure relief port 11 is opened, and the valve disk 3 is moved upward along the side wall of the chamber by the pressure impact and separated from the limit projection 41, and the limit projection 41 is pressed outward in the axial direction of the cylinder 1.
At the end of the discharge, the pressure in the tank drops and the valve disc 3 moves downwards along the side wall of the cylinder barrel 1 under the action of the pressure of the spring 13 on the valve disc and the gravity of the valve disc until the bottom of the lower cavity, and the oil tank is sealed by the sealing elements 42 and 43.
Example 2
Referring to fig. 5, the pressure release device for the oil-immersed power equipment comprises a cylinder barrel 1, wherein the upper end of the cylinder barrel 1 is sealed, the lower end port of the cylinder barrel 1 is communicated with the upper end of an oil tank 2 and is fixedly connected with the upper end of the oil tank through a flange, two pressure relief ports 11 which are symmetrically distributed are formed in the circumferential direction of the lower portion of the cylinder barrel 1, and an explosion-proof membrane 12 is arranged on each pressure relief port 11;
a valve disc 3 is arranged in the cylinder barrel 1 to divide the cylinder barrel 1 into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring 13 is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the middle part of the cylinder barrel 1 in the circumferential direction, when a limiting lug 41 of each spring limiting mechanism is positioned in the cylinder barrel 1, the circumferential direction of the valve disc 3 is overlapped on the limiting lug 41, the valve disc 3 is coaxially arranged on the middle part of the cylinder barrel 1, and the return spring 13 is in a compressed state;
when the oil tank 2 releases the pressure, the limiting convex block 41 of the spring limiting mechanism is punched out of the cylinder barrel 1, so that the valve disc 3 is positioned at the bottom of the cylinder barrel 1, the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1, and the separation between the lower cavity and the oil tank 2 is realized.
The valve disc 3 is in a short cylindrical shape, the outer cylindrical surface of the valve disc 3 is a stepped surface, the diameter of the lower part of the valve disc 3 is smaller than that of the upper part of the valve disc, when a limiting lug 41 of the spring limiting mechanism is positioned in the cylinder barrel 1, the upper part of the valve disc 3 is erected on the limiting lug 41 and is in sealing contact with the side wall of the cylinder barrel 1 through a second sealing ring 42,
when the limiting projection 41 of the spring limiting mechanism is positioned outside the cylinder barrel 1, the lower part of the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1 through the first sealing ring 43.
The upper end of valve disc 3 is equipped with down boss 31 for the lower extreme of answer spring 13 is spacing to be installed under on boss 31, the upper end of going up the cavity is equipped with boss 32, makes the upper end of answer spring 13 spacing to be installed on last boss 32.
The spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit lug 41 under the pretightening force of the compression spring 46, so that the limit lug 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
Example 3
Referring to fig. 6, the pressure release device for the oil-immersed power equipment comprises a cylinder barrel 1, wherein the upper end of the cylinder barrel 1 is sealed, the lower end port of the cylinder barrel 1 is communicated with the upper end of an oil tank 2 and is fixedly connected with the upper end of the oil tank through a flange, a pressure relief opening 11 is formed in the circumferential direction of the lower portion of the cylinder barrel 1, and an explosion-proof membrane 12 is arranged on the pressure relief opening 11;
a valve disc 3 is arranged in the cylinder barrel 1 to divide the cylinder barrel 1 into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring 13 is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the middle part of the cylinder barrel 1 in the circumferential direction, when a limiting lug 41 of each spring limiting mechanism is positioned in the cylinder barrel 1, the circumferential direction of the valve disc 3 is overlapped on the limiting lug 41, the valve disc 3 is coaxially arranged on the middle part of the cylinder barrel 1, and the return spring 13 is in a compressed state;
when the oil tank 2 releases the pressure, the limiting convex block 41 of the spring limiting mechanism is punched out of the cylinder barrel 1, so that the valve disc 3 is positioned at the bottom of the cylinder barrel 1, the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1, and the separation between the lower cavity and the oil tank 2 is realized.
The valve disc 3 is in a short cylindrical shape, the outer cylindrical surface of the valve disc 3 is a stepped surface, the diameter of the lower part of the valve disc 3 is smaller than that of the upper part of the valve disc, when a limiting lug 41 of a spring limiting mechanism is positioned in the cylinder barrel 1, the upper part of the valve disc 3 is erected on the limiting lug 41 and is in sealing contact with the side wall of the cylinder barrel 1 through a second sealing ring 42,
when the limiting projection 41 of the spring limiting mechanism is positioned outside the cylinder barrel 1, the lower part of the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1 through the first sealing ring 43.
An annular lower groove 33 is formed in the upper end of the valve disc 3, so that the lower end of the return spring 13 is limited and mounted in the annular lower groove 33, an annular upper groove 34 is formed in the upper end of the upper cavity, and the upper end of the return spring 13 is limited and mounted in the annular upper groove 34.
The spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit bump 41 under the pre-tightening force of the compression spring 46, so that the limit bump 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
Example 4
Referring to fig. 7, the pressure release device for the oil-immersed power equipment comprises a cylinder barrel 1, wherein the upper end of the cylinder barrel 1 is sealed, the lower end port of the cylinder barrel 1 is communicated with the upper end of an oil tank 2 and is fixedly connected with the upper end of the oil tank through a flange, a pressure relief opening 11 is formed in the circumferential direction of the lower portion of the cylinder barrel 1, and an explosion-proof membrane 12 is arranged on the pressure relief opening 11;
a valve disc 3 is arranged in the cylinder barrel 1 to divide the cylinder barrel 1 into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring 13 is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the middle part of the cylinder barrel 1 in the circumferential direction, when a limiting lug 41 of each spring limiting mechanism is positioned in the cylinder barrel 1, the circumferential direction of the valve disc 3 is erected on the limiting lug 41, the valve disc 3 is coaxially arranged on the middle part of the cylinder barrel 1, and at the moment, the return spring 13 is in a compression state;
when the oil tank 2 releases the pressure, the limiting convex block 41 of the spring limiting mechanism is punched out of the cylinder barrel 1, so that the valve disc 3 is positioned at the bottom of the cylinder barrel 1, the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1, and the separation between the lower cavity and the oil tank 2 is realized.
The valve disc 3 is a circular truncated cone, the outer edge of the top surface of the circular truncated cone is provided with a limit convex circle 35,
when the limiting convex block 41 of the spring limiting mechanism is positioned in the cylinder barrel 1, the side surface of the circular truncated cone is contacted with the limiting convex block 41, and the limiting convex circle 35 is lapped on the limiting convex block 41,
when the limiting convex block 41 of the spring limiting mechanism is positioned outside the cylinder barrel 1, the bottom of the circular truncated cone is in sealing fit with the lower port of the cylinder barrel 1 through the third sealing ring 44.
The spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit bump 41 under the pre-tightening force of the compression spring 46, so that the limit bump 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
Example 5
Referring to fig. 8, the pressure release device for the oil-immersed power equipment comprises a cylinder barrel 1, wherein the upper end of the cylinder barrel 1 is sealed, the lower end port of the cylinder barrel 1 is communicated with the upper end of an oil tank 2 and is fixedly connected with the upper end of the oil tank through a flange, a pressure relief opening 11 is formed in the circumferential direction of the lower portion of the cylinder barrel 1, and an explosion-proof membrane 12 is arranged on the pressure relief opening 11;
a valve disc 3 is arranged in the cylinder barrel 1 to divide the cylinder barrel 1 into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring 13 is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the middle part of the cylinder barrel 1 in the circumferential direction, when a limiting lug 41 of each spring limiting mechanism is positioned in the cylinder barrel 1, the circumferential direction of the valve disc 3 is overlapped on the limiting lug 41, the valve disc 3 is coaxially arranged on the middle part of the cylinder barrel 1, and the return spring 13 is in a compressed state;
when the oil tank 2 releases pressure, the limiting convex block 41 of the spring limiting mechanism is punched out of the cylinder barrel 1, so that the valve disc 3 is positioned at the bottom of the cylinder barrel 1, the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1, and the separation between the lower chamber and the oil tank 2 is realized.
The valve disc 3 is a cylinder, the cylinder opening of the cylinder is positioned at the lower end,
the bottom of lower cavity upwards is equipped with connecting sleeve 14, and when spring stop gear's spacing lug 41 was located cylinder 1, the lower port of valve disc 3 was set up on spacing lug 41, and when spring stop gear's spacing lug 41 was located outside cylinder 1, valve disc 3 was located cylinder 1 bottom to locate outside connecting sleeve 14 through the cooperation cover of third sealing washer 44.
The spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit lug 41 under the pretightening force of the compression spring 46, so that the limit lug 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
The spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit bump 41 under the pre-tightening force of the compression spring 46, so that the limit bump 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
Example 6
Fig. 10 shows a pressure release device for oil-immersed power equipment, which includes a cylinder barrel 1, the upper end of the cylinder barrel 1 is sealed, the lower end of the cylinder barrel 1 is communicated with the upper end of an oil tank 2 and is fixedly connected with the upper end of the oil tank through a flange, a pressure relief opening 11 is formed in the circumferential direction of the lower portion of the cylinder barrel 1, and an explosion-proof membrane 12 is arranged on the pressure relief opening 11;
a valve disc 3 is arranged in the cylinder barrel 1 to divide the cylinder barrel 1 into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring 13 is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the middle part of the cylinder barrel 1 in the circumferential direction, when a limiting lug 41 of each spring limiting mechanism is positioned in the cylinder barrel 1, the circumferential direction of the valve disc 3 is overlapped on the limiting lug 41, the valve disc 3 is coaxially arranged on the middle part of the cylinder barrel 1, and the return spring 13 is in a compressed state;
when the oil tank 2 releases pressure, the limiting convex block 41 of the spring limiting mechanism is punched out of the cylinder barrel 1, so that the valve disc 3 is positioned at the bottom of the cylinder barrel 1, the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1, and the separation between the lower chamber and the oil tank 2 is realized.
The valve disc 3 is in a short cylindrical shape, the outer cylindrical surface of the valve disc 3 is a stepped surface, the diameter of the lower part of the valve disc 3 is smaller than that of the upper part of the valve disc, when a limiting lug 41 of the spring limiting mechanism is positioned in the cylinder barrel 1, the upper part of the valve disc 3 is erected on the limiting lug 41 and is in sealing contact with the side wall of the cylinder barrel 1 through a second sealing ring 42,
when the limiting projection 41 of the spring limiting mechanism is positioned outside the cylinder barrel 1, the lower part of the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1 through the first sealing ring 43.
The spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit bump 41 under the pre-tightening force of the compression spring 46, so that the limit bump 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
The fixture block 45 is flexibly connected with the limiting convex block 41 through a rope.
Example 7
Fig. 9 shows a pressure release device for oil-immersed power equipment, which includes a cylinder barrel 1, wherein the upper end of the cylinder barrel 1 is sealed, the lower end port of the cylinder barrel 1 is communicated with the upper end of an oil tank 2 and is fixedly connected with the upper end of the oil tank through a flange, a pressure relief opening 11 is formed in the circumferential direction of the lower portion of the cylinder barrel 1, and an explosion-proof membrane 12 is arranged on the pressure relief opening 11;
a valve disc 3 is arranged in the cylinder barrel 1 to divide the cylinder barrel 1 into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring 13 is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the middle part of the cylinder barrel 1 in the circumferential direction, when a limiting lug 41 of each spring limiting mechanism is positioned in the cylinder barrel 1, the circumferential direction of the valve disc 3 is overlapped on the limiting lug 41, the valve disc 3 is coaxially arranged on the middle part of the cylinder barrel 1, and the return spring 13 is in a compressed state;
when the oil tank 2 releases the pressure, the limiting convex block 41 of the spring limiting mechanism is punched out of the cylinder barrel 1, so that the valve disc 3 is positioned at the bottom of the cylinder barrel 1, the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1, and the separation between the lower cavity and the oil tank 2 is realized.
The valve disc 3 is in a short cylindrical shape, the outer cylindrical surface of the valve disc 3 is a stepped surface, the diameter of the lower part of the valve disc 3 is smaller than that of the upper part of the valve disc, when a limiting lug 41 of the spring limiting mechanism is positioned in the cylinder barrel 1, the upper part of the valve disc 3 is erected on the limiting lug 41 and is in sealing contact with the side wall of the cylinder barrel 1 through a second sealing ring 42,
when the limiting projection 41 of the spring limiting mechanism is positioned outside the cylinder barrel 1, the lower part of the valve disc 3 is in sealing fit with the lower port of the cylinder barrel 1 through the first sealing ring 43.
The spring limiting mechanism comprises a clamping block 45, a compression spring 46 and a baffle plate 47,
a horizontal bearing platform 15 is arranged in the middle of the outer side wall of the cylinder barrel 1, a baffle plate 47 is vertically inserted on the horizontal bearing platform 15, a fixture block 45 is arranged at the upper end of the horizontal bearing platform 15, a limiting convex block 41 is fixedly connected to one side of the fixture block 45, and the other side of the fixture block is in elastic contact with the baffle plate 47 through a compression spring 46;
the clamping block 45 is abutted against the limit bump 41 under the pre-tightening force of the compression spring 46, so that the limit bump 41 is inserted into the cylinder barrel 1,
when the oil tank 2 releases pressure, the limiting lug 41 presses to enable the baffle 47 to be separated from the horizontal bearing platform 15, the limiting lug 41 is separated from the cylinder barrel 1, and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel 1.
The upper end of the cylinder barrel 1 is provided with a separated end cover 16, and the end cover 16 is locked and fixed through bolts.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A pressure release device for oil-immersed power equipment comprises a cylinder barrel (1), wherein the upper end of the cylinder barrel (1) is sealed, the lower end opening of the cylinder barrel (1) is communicated with the upper end of an oil tank (2) and fixedly connected with the upper end of the oil tank through a flange plate, at least one pressure relief opening (11) is formed in the circumferential direction of the lower portion of the cylinder barrel (1), and an explosion-proof film (12) is arranged on the pressure relief opening (11);
the method is characterized in that: a valve disc (3) is arranged in the cylinder barrel (1) to divide the cylinder barrel (1) into an upper chamber and a lower chamber, the lower chamber is communicated with the oil tank, and a return spring (13) is coaxially arranged in the upper chamber;
more than two spring limiting mechanisms are arranged on the circumferential direction of the middle part of the cylinder barrel (1), when a limiting lug (41) of each spring limiting mechanism is positioned in the cylinder barrel (1), the circumferential direction of the valve disc (3) is erected on the limiting lug (41), the valve disc (3) is coaxially arranged on the middle part of the cylinder barrel (1), and at the moment, the return spring (13) is in a compression state;
when oil tank (2) pressure release, outside spring stop gear's spacing lug (41) washed out cylinder (1), when releasing, the bottom of cylinder (1) is fallen to in valve disc (3), and the lower port seal cooperation of valve disc (3) and cylinder (1) realizes the wall between lower cavity and oil tank (2).
2. Pressure relief device for oil filled power equipment according to claim 1, characterized in that: the valve disc (3) is in a short cylinder shape, the outer cylindrical surface of the valve disc (3) is a stepped surface, the diameter of the lower part of the valve disc is smaller than that of the upper part of the valve disc, when a limiting bump (41) of the spring limiting mechanism is positioned in the cylinder barrel (1), the upper part of the valve disc (3) is arranged on the limiting bump (41) in a lap mode and is in sealing contact with the side wall of the cylinder barrel (1) through a second sealing ring (42),
when the limiting convex block (41) of the spring limiting mechanism is positioned outside the cylinder barrel (1), the lower part of the valve disc (3) is in sealing fit with the lower port of the cylinder barrel (1) through the first sealing ring (43).
3. A pressure relief device for oil filled power equipment according to claim 2, characterized by: the upper end of the valve disc (3) is provided with a lower boss (31), the lower end of the return spring (13) is mounted on the lower boss (31) in a limiting mode, the upper end of the upper cavity is provided with an upper boss (32), and the upper end of the return spring (13) is mounted on the upper boss (32) in a limiting mode.
4. A pressure relief device for oil filled power equipment according to claim 2, characterized by: an annular lower groove (33) is formed in the upper end of the valve disc (3), so that the lower end of the return spring (13) is installed in the annular lower groove (33) in a limiting mode, an annular upper groove (34) is formed in the upper end of the upper cavity, and the upper end of the return spring (13) is installed in the annular upper groove (34) in a limiting mode.
5. The pressure relief device for oil-filled power equipment according to claim 1, wherein: the valve disc (3) is a circular truncated cone, a limiting convex circle (35) is arranged on the outer edge of the top surface of the circular truncated cone, a limiting convex block (41) of the spring limiting mechanism is located in the cylinder barrel (1), the side surface of the circular truncated cone is in contact with the limiting convex block (41), the limiting convex circle (35) is lapped on the limiting convex block (41), the limiting convex block (41) of the spring limiting mechanism is located outside the cylinder barrel (1), and the bottom of the circular truncated cone is in sealing fit with the lower port of the cylinder barrel (1) through a third sealing ring (44).
6. The pressure relief device for oil-filled power equipment according to claim 1, wherein: valve disc (3) are the drum, and the nozzle of drum is located the lower extreme, the bottom of cavity upwards is equipped with connecting sleeve (14) down, and spacing lug (41) when spring stop gear are located cylinder (1), and the lower nozzle of valve disc (3) is set up on spacing lug (41), and outside spring stop gear's spacing lug (41) were located cylinder (1), valve disc (3) were located cylinder (1) bottom to locate outside connecting sleeve (14) through third sealing washer (44) cooperation cover.
7. The pressure relief device for oil-filled power equipment according to claim 1, wherein: the spring limiting mechanism comprises a clamping block (45), a compression spring (46) and a baffle (47), a horizontal bearing platform (15) is arranged in the middle of the outer side wall of the cylinder barrel (1), the baffle (47) is vertically inserted on the horizontal bearing platform (15), the clamping block (45) is arranged at the upper end of the horizontal bearing platform (15), a limiting convex block (41) is fixedly connected to one side of the clamping block (45), and the other side of the clamping block (45) is in elastic contact with the baffle (47) through the compression spring (46); the clamping block (45) is abutted to the limiting convex block (41) under the action of the pretightening force of the compression spring (46) so that the limiting convex block (41) is inserted into the cylinder barrel (1), when the oil tank (2) releases pressure, the limiting convex block (41) applies pressure so that the baffle (47) is separated from the horizontal bearing platform (15), the limiting convex block (41) is separated from the cylinder barrel (1), and more than two pressure release channels are formed in the circumferential direction of the cylinder barrel (1).
8. A pressure relief device for oil filled power equipment according to claim 7, characterized by: the clamping block (45) and the limiting convex block (41) are flexibly connected through a rope.
9. Pressure relief device for oil filled power equipment according to claim 1, characterized in that: the upper end of the cylinder barrel (1) is provided with a separated end cover (16), and the end cover (16) is locked and fixed through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539985.1U CN217784316U (en) | 2022-06-20 | 2022-06-20 | Pressure release device for oil-immersed power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539985.1U CN217784316U (en) | 2022-06-20 | 2022-06-20 | Pressure release device for oil-immersed power equipment |
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| Publication Number | Publication Date |
|---|---|
| CN217784316U true CN217784316U (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221539985.1U Expired - Fee Related CN217784316U (en) | 2022-06-20 | 2022-06-20 | Pressure release device for oil-immersed power equipment |
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| Country | Link |
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| CN (1) | CN217784316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788821A (en) * | 2022-12-22 | 2023-03-14 | 广州万固压缩机有限公司 | Large-inclination-angle compressor |
-
2022
- 2022-06-20 CN CN202221539985.1U patent/CN217784316U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788821A (en) * | 2022-12-22 | 2023-03-14 | 广州万固压缩机有限公司 | Large-inclination-angle compressor |
| CN115788821B (en) * | 2022-12-22 | 2023-07-04 | 广州万固压缩机有限公司 | Large-inclination compressor |
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