CN203287037U - Unblockedness test device for transformer moisture absorber - Google Patents
Unblockedness test device for transformer moisture absorber Download PDFInfo
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- CN203287037U CN203287037U CN2013203680493U CN201320368049U CN203287037U CN 203287037 U CN203287037 U CN 203287037U CN 2013203680493 U CN2013203680493 U CN 2013203680493U CN 201320368049 U CN201320368049 U CN 201320368049U CN 203287037 U CN203287037 U CN 203287037U
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims description 34
- 230000000241 respiratory effect Effects 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 11
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 3
- 238000010079 rubber tapping Methods 0.000 abstract 4
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000002775 capsule Substances 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 6
- 239000000741 silica gel Substances 0.000 description 6
- 229910002027 silica gel Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model provides an unblockedness test device for a transformer moisture absorber. The device comprises a first valve body, a second valve body, an exhaust tube, a piston assembly, springs, steel balls, a first self-tapping bolt and a second self-tapping bolt. The first valve body is provided with a mounting connecting hole, a breathing vent hole, a pumping air outlet and an exhaust tube mounting hole; the second valve body is provided with a first bolt hole, a first spring steel ball mounting hole, a first air guide hole, a second spring mounting hole, a second bolt hole, a vent hole and a second air guide hole; the exhaust tube is fixedly mounted inside the first valve body; a piston is movable sleeved inside the exhaust tube after a seal ring is sleeve on the piston; two sets of springs and steel balls are respectively fixedly mounted inside the second valve through the first self-tapping bolt and the second self-tapping bolt, and the second valve body and the first valve body are fixedly connected and corresponding air holes (of the first and the second valve bodies) are communicated. The unblockedness test device for a transformer moisture absorber is simple in structure, relatively low in cost, relatively small in size, light in weight, convenient to carry and mount, and fast in test of unblockedness of the moisture absorber, and compared with a conventional method, the work efficiency is substantially improved.
Description
Technical field
The utility model relates to the operational test set of the attached safety guard of transformer, is specifically related to whether unimpeded proving installation of a kind of dehydrating breather for the test transformer.
Background technology
Dehydrating breather is an attached safety guard of transformer, and common dehydrating breather and the connected mode of transformer are as shown in Figure 1.The body of dehydrating breather 07 is transparent glass vessels, and inside fills discolour silica gel 09 as drying agent, and the upper end of dehydrating breather body is connected by the interior rubber capsule 05 of flange 06 use connecting leg 02 and the oil conservater 04 of transformer 01; The body bottom of dehydrating breather 07, with lubricating cup 08, fills transformer oil in lubricating cup 08, as the filtration unit at dehydrating breather air ports place.Fill transformer oil in transformer 01.Dehydrating breather 07 is when normal operating conditions, when transformer 01 expands the volume of transformer oil due to the variation of load or environment temperature, transformer oil is pressed in oil conservater 04 by connecting pipe 02 and gas relay 03, make the gas air-breathing and exhaust by dehydrating breather 07 in oil conservater 04, thereby whether cause in lubricating cup having comparatively significantly bubble rolling to observe dehydrating breather for the staff unimpeded.but, in the situation that summer high-temperature or transformer 01 running overload, if dehydrating breather 07 stops up or unsmooth breath, the transformer oil volumetric expansion, oil level in oil conservater 04 rises, extruding rubber capsule 05, because dehydrating breather stops up, air can't pass in and out, after rubber capsule 05 is compressed, its internal air volume reduces, pressure increases, cause transformer the phenomenon of false oil level (the actual oil level of transformer and outside instrument reading have difference) or earth pressure release (protective device of the transformer of automatic relief pressure after the increase of transformer internal pressure surpasses warning value) action to occur, if carry out more changing jobs of discolour silica gel 09 this moment, so under dehydrating breather 07 is split in a flash, transformer oil will be poured into rapidly oil conservater 05, oil stream will promote gas relay 03 interior baffle plate, and (gas relay is for being connected in oil circuit, it is the protective device of power transformer interior fault, when the inner generation of transformer catastrophic failure, will produce a large amount of gas, produce oily flow phenomenon in connecting leg, protection baffle plate in this device is just promoted by oil stream, when baffle plate moves to a certain restriction position, just connect trip circuit, the power supply of disconnecting transformer, play the effect of protection transformer), cause the protection misoperation, transformer 01 is stopped transport, have a strong impact on the reliability of power supply.Therefore before changing silica gel 09, must guarantee that dehydrating breather 07 breathing is unimpeded.Transformer is because temperature, power load is uncertain, and the transformer oil volume expands with heat and contract with cold very small sometimes, so in the lubricating cup 08 of dehydrating breather 07, bubble is sometimes very not obvious, to the staff, observes and brings difficulty, affects work efficiency.
The utility model content
The purpose of this utility model is: overcome the deficiencies in the prior art, provide a kind of simple in structure, cost is lower, portably use conveniently, the test effect unimpeded proving installation of moisture absorber of transformer preferably.
The technical solution of the utility model is: the unimpeded proving installation of moisture absorber of transformer of the present utility model, and its design feature is: comprise the first valve body, the second valve body, exhaust tube, piston component, spring, steel ball, the first tap bolt and the second tap bolt;
The first above-mentioned valve body is rectangular parallelepiped or square spare, and four bights of the first valve body respectively are provided with respectively the manhole of a up/down perforation, as connecting hole is installed; The left and right of the first valve body to centre position, respectively be provided with the manhole that upward and downward connects before and after minute, as the respiratory ventilation hole; The sagittal centre position of the left upper portion of the first valve body is provided with a through hole that from left to right upwards connects again, as inflating venthole; The lower middle section of the upward and downward of the first valve body, sagittal centre position be provided with the left and right to manhole, as the exhaust tube mounting hole;
The second valve body is rectangular parallelepiped spare or square spare; The center concentric of the second valve body ground connection that is connected successively from top to bottom is provided with the first bolt hole, the first spring steel ball mounting hole, the first gas port, the second spring mounting hole and the second bolt hole; The right upper portion of the second valve body be provided with the left and right to venthole, the left port of venthole communicates with the top of the first spring steel ball mounting hole; The right output port of venthole is positioned on the right side of the second valve body; The lower right side of the second valve body be provided with the left and right to the second gas port, the left port of the second gas port communicates with the first gas port; The right side port of the second gas port is positioned on the right side of the second valve body;
Exhaust tube is left end opening, the semi-enclosed tube-like piece of right-hand member; The center of the right-hand member of exhaust tube be provided with the left and right to manhole, pass through hole as piston rod; Exhaust tube is fixedly mounted in the exhaust tube mounting hole of the first valve body by its left part; The right part of exhaust tube stretches out to the right from the right flank of the first valve body;
Piston component comprises pull handle, piston rod, piston and rubber seal; Pull handle is fixedly connected with the right-hand member of piston rod; The left end of piston rod is fixedly connected with piston, is sheathed on movably in exhaust tube after piston socket O-ring seal;
Spring is volute spring, and spring comprises upper spring and lower spring;
Steel ball comprises upper steel ball and the lower steel ball that structure is identical;
The first tap bolt comprises bolt cap and key, and the center of the key of the first tap bolt is provided with the circular port as spring mounting hole that extends to from bottom to top in the bolt cap, and upper steel ball is located at the lower end of the first spring steel ball mounting hole of the second valve body; One end of upper spring contacts with upper steel ball, and the other end of upper spring contacts with the upper surface of the spring mounting hole of the first tap bolt; The first tap bolt is fixedly connected with the first bolt hole threaded engagement of the second valve body;
The second tap bolt comprises bolt cap and key, and the center of the key of the second tap bolt is provided with the spring steel ball mounting hole that extends to from top to bottom in the bolt cap; The center of the bolt cap of the second tap bolt is provided with the manhole of up/down perforation, as air admission hole; Lower steel ball is located at the lower end of the spring steel ball mounting hole of the second tap bolt; One end of lower spring contacts with lower steel ball, and the other end of lower spring is placed in the second spring mounting hole of the second valve body; The second tap bolt is fixedly connected with the second bolt hole threaded engagement of the second valve body;
The second valve body is fixedly connected with the first valve body; And the left port of venthole of inflating of the right output port of the venthole of the second valve body and the first valve body is joined; The right output port of the second gas port of the second valve body and the left port of exhaust tube are joined.
Further scheme is: the upper end outlet of venthole of inflating of the first above-mentioned valve body is positioned at the left side in 2 respiratory ventilation holes, and is positioned on the sagittal axis of the first valve body.
Further scheme is: the sagittal length of the second above-mentioned valve body is about the front and back of the first valve body to 1/2nd of width; The left and right of the second valve body to the width left and right that is about the first valve body to length 1/4th; The height of the upward and downward of the second valve body is identical with the height of the upward and downward of the first valve body.
Further scheme is: the top of the first spring steel ball mounting hole of the second above-mentioned valve body is circular port and its internal diameter internal diameter less than the first bolt hole; The bottom of the first spring steel ball mounting hole is the top perforate of reclinate arc and arc; The first gas port is circular port, and the internal diameter of the first gas port is less than the internal diameter of the first spring steel ball mounting hole; The second spring mounting hole is circular port, and the internal diameter of the second spring mounting hole is identical with the internal diameter in the upper circular hole of the first spring steel ball mounting hole.
Further scheme also has: the screw hole that is provided with 2 connection use before and after the left side of the first above-mentioned valve body is divided; Before and after the second valve body, both sides respectively are provided with respectively 1 left and right to the installation attachment screw hole that connects; The mode that the second above-mentioned valve body and the first valve body are fixedly connected with is connected for the screw hole that is connected use by 2 of the first valve body matches to be screwed with 2 installation attachment screw holes of the second valve body.
The utlity model has positive effect: the unimpeded proving installation of (1) moisture absorber of transformer of the present utility model, simple in structure, cost is lower.(2) the unimpeded proving installation of moisture absorber of transformer of the present utility model, small volume, be about 8.125cm
3, can be placed on easily the palm of the hand; Weight is lighter, is about 2.2kg, is convenient to the installation and maintenance personnel and carries.(3) the unimpeded proving installation of moisture absorber of transformer of the present utility model, only need to be serially connected between flange and dehydrating breather with bolt during installation, and is easy for installation, time saving and energy saving.(4) the unimpeded proving installation of moisture absorber of transformer of the present utility model, only need to lash gas about 5～10 seconds during test, can judge effectively whether dehydrating breather is unimpeded, and than classic method, work efficiency significantly improves.
Description of drawings
Fig. 1 is the principle schematic of the applied transformer moisture absorption of the utility model system;
Fig. 2 is a kind of structural representation of the present utility model;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the upward view of Fig. 2;
Fig. 5 is the left view of Fig. 2;
Fig. 6 is the right view of Fig. 2;
Fig. 7 is that the A-A of Fig. 2 is to cut-open view;
Fig. 8 is the enlarged diagram of the second valve body in Fig. 7.
Reference numeral in above-mentioned accompanying drawing is as follows:
Transformer body 01, connecting leg 02, gas relay 03, oil conservater 04, rubbery human body 05, flange 06, dehydrating breather 07, lubricating cup 08, discolour silica gel 09;
The first valve body 1, install connecting hole 11, and venthole 13 is inflated in respiratory ventilation hole 12,
The second valve body 2, the first bolt hole 21, the first spring steel ball mounting hole 22, the first gas ports 23, the second spring mounting hole 24, the second bolts hole 25, venthole 26, the second gas ports 27,
Exhaust tube 3,
Piston component 4, pull handle 41, piston rod 42, piston 43, rubber seal 44,
Spring 5, upper spring 51, lower spring 52,
Steel ball 6, upper steel ball 61, lower steel ball 62,
The first tap bolt 7,
The second tap bolt 8, air admission hole 81,
Attachment screw 9.
Embodiment
(embodiment 1)
See Fig. 2 to Fig. 7, the unimpeded proving installation of the moisture absorber of transformer of the present embodiment, be comprised of the first valve body 1, the second valve body 2, exhaust tube 3, piston component 4, spring 5, steel ball 6, the first tap bolt 7, the second tap bolts 8 and attachment screw 9.
The first valve body 1 is the steel integral piece.The global shape of the first valve body 1 is rectangular parallelepiped or square.Four bights of the first valve body 1 respectively are provided with respectively the manhole of a up/down perforation, as connecting hole 11 is installed.The left and right of the first valve body 1 to centre position, respectively be provided with the manhole that upward and downward connects before and after minute, as respiratory ventilation hole 12.The sagittal centre position of the left upper portion of the first valve body 1 is provided with a through hole that from left to right upwards connects again, as inflating venthole 13, the upper end outlet of venthole 13 of inflating is positioned at the left side in 2 respiratory ventilation holes 12, and substantially is positioned on the sagittal axis of the first valve body 1.The lower middle section of the upward and downward of the first valve body 1, sagittal centre position be provided with for the left and right that exhaust tube is installed to manhole, as the exhaust tube mounting hole; Before and after dividing, the left side of the first valve body 1 is provided with the screw hole of 2 connection use.
Referring to Fig. 8, the second valve body 2 is the steel integral piece.The global shape of the second valve body 2 is rectangular parallelepiped or square.The sagittal length of the second valve body 2 is about the front and back of the first valve body 1 to 1/2nd of width; The left and right of the second valve body 2 to the width left and right that is about the first valve body 1 to length 1/4th; The height of the upward and downward of the height of the upward and downward of the second valve body 2 and the first valve body 1 is basic identical.
The center concentric of the second valve body 2 ground connection that is connected successively from top to bottom is provided with the first bolt hole 21, the first spring steel ball mounting hole 22, the first gas port 23, the second spring mounting hole 24 and the second bolt hole 25.The first bolt hole 21 be connected bolt hole 25 and be circular port and be respectively equipped with the internal thread that connects use; The top of the first spring steel ball mounting hole 22 is circular port, and its internal diameter is less than the internal diameter of the first bolt hole 21; The bottom of the first spring steel ball mounting hole 22 is the top perforate of reclinate arc and arc.The first gas port 23 is circular port, and the internal diameter of the first gas port 23 is less than the internal diameter of the first spring steel ball mounting hole 22; The second spring mounting hole 24 is circular port, and the internal diameter of the second spring mounting hole 24 is identical with the internal diameter in the upper circular hole of the first spring steel ball mounting hole 22.The second valve body 2 both sides, front and back respectively are provided with respectively 1 left and right to the installation attachment screw hole that connects.
The right upper portion of the second valve body 2 be provided with the left and right to venthole 26, the left port of venthole 26 communicates with the top of the first spring steel ball mounting hole 22; The right output port of venthole 26 is positioned on the right side of the second valve body 2; The lower right side of the second valve body 2 be provided with left and right to the left port of the second gas port 27, the second gas ports 27 communicate with the first gas port 23; The right side port of the second gas port 27 is positioned on the right side of the second valve body 2.
Piston component 4 is comprised of pull handle 41, piston rod 42, piston 43 and rubber seal 44.Pull handle 41 is plastics ball spare, and piston rod 42 is steel pipe.Pull handle 41 is fixedly connected with the right-hand member of piston rod 42; The left end of piston rod 42 is fixedly connected with piston 43, is sheathed on movably in exhaust tube 3 after piston 43 socket O-ring seals 44.
Spring 5 is provided with 2, and during by installation, residing upper-lower position difference is upper spring 51 and lower spring 52.Spring 5 is volute spring.The internal diameter in the upper circular hole of the external diameter of spring 5 and the first spring steel ball mounting hole 22 adapts.
Steel ball 6 is provided with identical 2, and during by installation, residing upper-lower position difference is upper steel ball 61 and lower steel ball 62.The internal diameter of the external diameter of steel ball 6 and spring 5 adapts.
The first tap bolt 7 comprises bolt cap and key, and the center of the key of the first tap bolt 7 is provided with the circular port as spring mounting hole that extends to from bottom to top in the bolt cap, and the external diameter of the internal diameter of this circular port and spring 5 adapts.During installation, upper steel ball 61 is placed in the lower end of the first spring steel ball mounting hole 22 of the second valve body 2, one end of upper spring 51 is contacted with upper steel ball 61, after the other end of upper spring 51 being placed in the spring mounting hole of the first tap bolt 7, then the first tap bolt 7 is fixedly connected with the first bolt hole 21 threaded engagement of the second valve body 2.
The second tap bolt 8 comprises bolt cap and key, the center of the key of the second tap bolt 8 is provided with the spring steel ball mounting hole that extends to from top to bottom in the bolt cap, the top of this spring steel ball mounting hole is circular port, bottom is reclinate arcuate socket, and the external diameter of the internal diameter in the upper circular hole of this spring steel ball mounting hole and spring 5 adapts; The center of the bolt cap of the second tap bolt 8 is provided with the manhole of up/down perforation, and as air admission hole 81, the internal diameter of air admission hole 81 is less than the diameter of lower steel ball 62.During installation, lower steel ball 62 is placed in the lower end of the spring steel ball mounting hole of the second tap bolt 8, one end of lower spring 52 is contacted with lower steel ball 62, after the other end of lower spring 52 being placed in the second spring mounting hole 24 of the second valve body 2, then the second tap bolt 8 is fixedly connected with the second bolt hole 25 threaded engagement of the second valve body 2.
During installation, the attachment screw hole is installed with 2 screw holes that are connected use in the left side of the first valve body 1, matches for 2 of the second valve body 2, by attachment screw 9, the second valve body 2 is fixedly connected with the first valve body 1, and the left port of venthole 13 of inflating of the right output port of venthole 26 of the second valve body 2 and the first valve body 1 is joined; The right output port of the second gas port 27 of the second valve body 2 and the left port of exhaust tube 3 are joined.
Principle of work and the course of work of the unimpeded proving installation of moisture absorber of transformer of the present embodiment are summarized as follows:
See Fig. 1 and Fig. 7, during use, installation connecting hole 11 use bolts and the O-ring seal sealing of the unimpeded proving installation of the moisture absorber of transformer of the present embodiment by four bights of its first valve body 1 is serially connected between dehydrating breather 07 and flange 06, this moment the first valve body 12 respiratory ventilation holes 12 be connected venthole 13 and upwards with being connected air, communicate, 2 respiratory ventilation holes 12 of the first valve body 1 communicate with dehydrating breather 07 downwards.When dehydrating breather 07 is working properly, by 2 respiratory ventilation hole 12 eupneas of the first valve body 1.
When the discolour silica gel 09 in dehydrating breather 07 needs to change, whether unimpededly need to first detect dehydrating breather 07, detect the pull handle 41 that only need to manually hold piston component 4 and bleed and inflate and can realize:
While bleeding, by to right outside pulling out the time, be negative pressure in exhaust tube 3 when piston 43, cause extraneous and pressure reduction of the inner generation of pump bowl, the acting force that this pressure reduction produces acts on the bottom of lower steel ball 62, force lower spring 52 that deformation occurs, air enters exhaust tube 3 by the air intake opening 81 of the second tap bolt 8 and the gap, bottom of lower steel ball 62 to both sides, after filling with air in exhaust tube 3, inside and outside differential pressure disappears, lower spring 52 recovers elastic deformation, withstands lower steel ball 62 and shuts air intake opening 81, the end of bleeding;
while inflating, when piston 43 is advanced left, force the air in exhaust tube 3 to enter lower spring, when air moves downward, because air intake opening 81 is sealed by lower steel ball 62, and pressure is when larger, the closure of lower steel ball 62 is better, therefore air can only move upward, act on steel ball 61, force upper spring 51 that elastic deformation occurs, air by the gap, bottom of upper steel ball 61 to two lateral movements, until to the first valve body 1, inflate venthole 13, be connected with connecting leg 02 owing to inflating venthole 13, therefore air finally enters in the rubber capsule 05 of oil conservater 04 inside, arrive this, one bout bleed and the process of inflating finishes.
Repeat above action, after bleeding back and forth and inflating, the air pressure of rubber capsule 05 inside is greater than external air pressure, cause the air of rubber capsule 05 inside to move downward along connecting leg 02, dehydrating breather 07 is arrived in 2 respiratory ventilation holes 12 through the first valve body 1,, if can obviously see bubble in lubricating cup 08 this moment, illustrates that dehydrating breather 07 breathing is unimpeded, test is completed, and can start to change the work of the discolour silica gel 09 in dehydrating breather 07.
To sum up, the unimpeded proving installation of the moisture absorber of transformer of the present embodiment, simple in structure, cost is lower; Small volume, be about 8.125cm
3, can be placed on easily the palm of the hand; Weight is lighter, is about 2.2kg, is convenient to the installation and maintenance personnel and carries; Only need to be serially connected between flange and dehydrating breather with bolt during installation, easy for installation, time saving and energy saving; Only need to lash gas about 5～10 seconds during test, can judge effectively whether dehydrating breather is unimpeded, and than classic method, work efficiency significantly improves.
Above embodiment is the explanation to embodiment of the present utility model; but not to restriction of the present utility model; person skilled in the relevant technique in the situation that do not break away from spirit of the present utility model and; can also make various conversion and variation and obtain the corresponding technical scheme that is equal to, so all technical schemes that are equal to all belong in scope of patent protection of the present utility model.
Claims (5)
1. the unimpeded proving installation of moisture absorber of transformer, is characterized in that: comprise the first valve body (1), the second valve body (2), exhaust tube (3), piston component (4), spring (5), steel ball (6), the first tap bolt (7) and the second tap bolt (8);
Described the first valve body (1) is rectangular parallelepiped or square spare, and four bights of the first valve body (1) respectively are provided with respectively the manhole of a up/down perforation, as connecting hole (11) is installed; The left and right of the first valve body (1) to centre position, respectively be provided with the manhole that upward and downward connects before and after minute, as respiratory ventilation hole (12); The sagittal centre position of the left upper portion of the first valve body (1) is provided with a through hole that from left to right upwards connects again, as inflating venthole (13); The lower middle section of the upward and downward of the first valve body (1), sagittal centre position be provided with the left and right to manhole, as the exhaust tube mounting hole;
The second valve body (2) is rectangular parallelepiped spare or square spare; The center concentric of the second valve body (2) ground connection that is connected successively from top to bottom is provided with the first bolt hole (21), the first spring steel ball mounting hole (22), the first gas port (23), the second spring mounting hole (24) and the second bolt hole (25); The right upper portion of the second valve body (2) be provided with the left and right to venthole (26), the left port of venthole (26) communicates with the top of the first spring steel ball mounting hole (22); The right output port of venthole (26) is positioned on the right side of the second valve body (2); The lower right side of the second valve body (2) be provided with the left and right to the second gas port (27), the left port of the second gas port (27) communicates with the first gas port (23); The right side port of the second gas port (27) is positioned on the right side of the second valve body (2);
Exhaust tube (3) is left end opening, the semi-enclosed tube-like piece of right-hand member; The center of the right-hand member of exhaust tube (3) be provided with the left and right to manhole, pass through hole as piston rod; Exhaust tube (3) is fixedly mounted in the exhaust tube mounting hole of the first valve body (1) by its left part; The right part of exhaust tube (3) stretches out to the right from the right flank of the first valve body (1);
Piston component (4) comprises pull handle (41), piston rod (42), piston (43) and rubber seal (44); Pull handle (41) is fixedly connected with the right-hand member of piston rod (42); The left end of piston rod (42) is fixedly connected with piston (43), is sheathed on movably in exhaust tube (3) after piston (43) socket O-ring seal (44);
Spring (5) is volute spring, and spring (5) comprises upper spring (51) and lower spring (52);
Steel ball (6) comprises upper steel ball (61) and the lower steel ball (62) that structure is identical;
The first tap bolt (7) comprises bolt cap and key, the center of the key of the first tap bolt (7) is provided with the circular port as spring mounting hole that extends to from bottom to top in the bolt cap, and upper steel ball (61) is located at the lower end of the first spring steel ball mounting hole (22) of the second valve body (2); One end of upper spring (51) contacts with upper steel ball (61), and the other end of upper spring (51) contacts with the upper surface of the spring mounting hole of the first tap bolt (7); The first tap bolt (7) is fixedly connected with the first bolt hole (21) threaded engagement of the second valve body (2);
The second tap bolt (8) comprises bolt cap and key, and the center of the key of the second tap bolt (8) is provided with the spring steel ball mounting hole that extends to from top to bottom in the bolt cap; The center of the bolt cap of the second tap bolt (8) is provided with the manhole of up/down perforation, as air admission hole (81); Lower steel ball (62) is located at the lower end of the spring steel ball mounting hole of the second tap bolt (8); One end of lower spring (52) contacts with lower steel ball (62), and the other end of lower spring (52) is placed in second spring mounting hole (24) of the second valve body (2); The second tap bolt (8) is fixedly connected with the second bolt hole (25) threaded engagement of the second valve body (2);
The second valve body (2) is fixedly connected with the first valve body (1); And the left port of venthole (13) of inflating of the right output port of the venthole (26) of the second valve body (2) and the first valve body (1) is joined; The right output port of second gas port (27) of the second valve body (2) and the left port of exhaust tube (3) are joined.
2. the unimpeded proving installation of moisture absorber of transformer according to claim 1, it is characterized in that: the upper end outlet of venthole (13) of inflating of described the first valve body (1) is positioned at the left side in 2 respiratory ventilation holes (12), and is positioned on the sagittal axis of the first valve body (1).
3. the unimpeded proving installation of moisture absorber of transformer according to claim 1, it is characterized in that: the sagittal length of described the second valve body (2) is about the front and back of the first valve body (1) to 1/2nd of width; The left and right of the second valve body (2) to the width left and right that is about the first valve body (1) to length 1/4th; The height of the upward and downward of the second valve body (2) is identical with the height of the upward and downward of the first valve body (1).
4. the unimpeded proving installation of moisture absorber of transformer according to claim 1 is characterized in that: the top of the first spring steel ball mounting hole (22) of described the second valve body (2) is circular port and its internal diameter internal diameter less than the first bolt hole (21); The bottom of the first spring steel ball mounting hole (22) is the top perforate of reclinate arc and arc; The first gas port (23) is circular port, and the internal diameter of the first gas port (23) is less than the internal diameter of the first spring steel ball mounting hole (22); The second spring mounting hole (24) is circular port, and the internal diameter of the second spring mounting hole (24) is identical with the internal diameter in the upper circular hole of the first spring steel ball mounting hole (22).
5. the unimpeded proving installation of moisture absorber of transformer according to claim 1, is characterized in that: the screw hole that is provided with 2 connection use before and after the left side of described the first valve body (1) is divided; Before and after the second valve body (2), both sides respectively are provided with respectively 1 left and right to the installation attachment screw hole that connects; The mode that described the second valve body (2) and the first valve body (1) are fixedly connected with is connected for the screw hole that is connected use by 2 of the first valve body (1) matches to be screwed with 2 installation attachment screw holes of the second valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203680493U CN203287037U (en) | 2013-06-25 | 2013-06-25 | Unblockedness test device for transformer moisture absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203680493U CN203287037U (en) | 2013-06-25 | 2013-06-25 | Unblockedness test device for transformer moisture absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203287037U true CN203287037U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203680493U Expired - Lifetime CN203287037U (en) | 2013-06-25 | 2013-06-25 | Unblockedness test device for transformer moisture absorber |
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| CN (1) | CN203287037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292838A (en) * | 2013-06-25 | 2013-09-11 | 江苏省电力公司常州供电公司 | Testing device for unblocking of dehydrating breather of transformer |
| CN110864927A (en) * | 2019-12-05 | 2020-03-06 | 广东电网有限责任公司 | Pneumatic characteristic testing platform and method for transformer breathing system |
-
2013
- 2013-06-25 CN CN2013203680493U patent/CN203287037U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292838A (en) * | 2013-06-25 | 2013-09-11 | 江苏省电力公司常州供电公司 | Testing device for unblocking of dehydrating breather of transformer |
| CN103292838B (en) * | 2013-06-25 | 2015-06-03 | 江苏省电力公司常州供电公司 | Testing device for unblocking of dehydrating breather of transformer |
| CN110864927A (en) * | 2019-12-05 | 2020-03-06 | 广东电网有限责任公司 | Pneumatic characteristic testing platform and method for transformer breathing system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20150603 |
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| RGAV | Abandon patent right to avoid regrant |