CN104880218A - Relatively-low-cost device for testing mobility of dehydrating breather of transformer - Google Patents
Relatively-low-cost device for testing mobility of dehydrating breather of transformer Download PDFInfo
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- CN104880218A CN104880218A CN201510237527.0A CN201510237527A CN104880218A CN 104880218 A CN104880218 A CN 104880218A CN 201510237527 A CN201510237527 A CN 201510237527A CN 104880218 A CN104880218 A CN 104880218A
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Abstract
The invention provides a relatively-low-cost device for testing mobility of a dehydrating breather of a transformer. The device comprises a first valve body, a second valve body, an exhaust pipe, a piston assembly, springs, steel balls, a first self-tapping bolt, and a second self-tapping bolt. The first valve body is provided with installation connection holes, breathing vents, a pumping air outlet, and an exhaust pipe installation hole; the second valve body is provided with a first bolt hole, a first spring steel ball installation hole, a first gas-guide hole, a second spring installation hole, a second bolt hole, an air outlet, and a second gas-guide hole. The exhaust pipe is fixedly installed in the first valve body; a piston of the piston assembly sleeves a sealing ring and is movably sleeved by the exhaust pipe; two groups of springs and steel balls are fixed in the second valve body by the first and second self-tapping bolts, respectively; and the second valve body is fixedly connected to the first valve body, and the corresponding air holes of the first and second valve bodies are communicated with each other. The device is simple in structure, low in cost, relatively small in size, light in weight, and convenient to carry and install. The device can fast detect whether the dehydrating breather is unblocked. The operating efficiency of the device is greatly improved, compared with that of a conventional method,.
Description
The divisional application that the application is the applying date is on June 25th, 2013, application number is 201310258536.9, invention and created name is the application for a patent for invention of " the unimpeded proving installation of moisture absorber of transformer ".
Technical field
The present invention relates to the operational test set of the attached safety guard of transformer, being specifically related to the proving installation whether a kind of dehydrating breather for testing transformer is unimpeded.
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 with the rubber capsule 05 in the oil conservater 04 of transformer 01 by flange 06 connecting leg 02; The body lower part 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.Transformer oil is filled in transformer 01.Dehydrating breather 07 is when normal operating conditions, when transformer 01 is due to the change of load or environment temperature and when making the volume of transformer oil expand, transformer oil is pressed in oil conservater 04 by connecting pipe 02 and gas relay 03, make the gas in oil conservater 04 come air-breathing and exhaust by dehydrating breather 07, thus whether cause having in lubricating cup comparatively significantly bubble rolling to observe dehydrating breather for staff unimpeded.But, when summer high-temperature or transformer 01 running overload, if dehydrating breather 07 blocks or unsmooth breath, transformer oil volumetric expansion, oil level in oil conservater 04 rises, extruding rubber capsule 05, due to dehydrating breather blocking, air cannot pass in and out, rubber capsule 05 is reduced by its internal air volume after compression, pressure increase, transformer is caused to occur the phenomenon of false oil level (the actual oil level of transformer and outside instrument reading have difference) or the earth pressure release protective device of the transformer of automatic relief pressure (after inside transformer pressure increase exceedes warning value) action, if now carry out more changing jobs of discolour silica gel 09, so get off in a flash dehydrating breather 07 is split, transformer oil will pour into rapidly oil conservater 05, (gas relay is for being connected in oil circuit by the baffle plate in promotion gas relay 03 for oil stream, it is the protective device of power transformer interior fault, when inside transformer generation catastrophic failure, a large amount of gas will be produced, oily flow phenomenon is produced 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 protection misoperation, transformer 01 is stopped transport, have a strong impact on the reliability of power supply.Therefore, before replacing silica gel 09, must guarantee that dehydrating breather 07 is breathed unimpeded.Transformer due to temperature, power load uncertain, transformer oil volume expands with heat and contract with cold very small sometimes, and in the lubricating cup 08 of therefore dehydrating breather 07, bubble is sometimes very not obvious, observes and brings difficulty, affect work efficiency to staff.
Summary of the invention
The object of the invention is: overcome the deficiencies in the prior art, provide that a kind of structure is simple, cost is lower, portably use conveniently, the unimpeded proving installation of the test good lower-cost moisture absorber of transformer of effect.
Technical scheme of the present invention is: the unimpeded proving installation of lower-cost moisture absorber of transformer of the present invention, 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 part, and four bights of the first valve body are respectively provided with the manhole of a up/down perforation respectively, as installation connecting hole; The left and right of the first valve body to centre position, be respectively provided with the through manhole of a upward and downward, as respiratory ventilation hole before and after point; The sagittal centre position of the left upper portion of the first valve body is provided with a from left to right upwards through again through hole, as inflating venthole; The lower middle portion of the upward and downward of the first valve body, sagittal centre position be provided with left and right to manhole, as exhaust tube mounting hole;
Second valve body is rectangular parallelepiped part or square part; The center concentric of the second valve body ground connection that is connected successively is from top to bottom 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 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 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 left and right to manhole, as piston rod passing hole; 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 spring and lower spring;
Steel ball comprises the identical upper steel ball of structure and lower steel ball;
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 extended to from bottom to top in bolt cap, and the lower end of the first spring steel ball mounting hole of the second valve body is located at by upper steel ball; 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; First tap bolt is fixedly connected with the first bolt hole threaded engagement of the second valve body;
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 extended to from top to bottom in 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; The lower end of the spring steel ball mounting hole of the second tap bolt is located at by lower steel ball; 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; Second tap bolt is fixedly connected with the second bolt hole threaded engagement of the second valve body;
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 connects; The right output port of the second gas port of the second valve body connects with the left port of exhaust tube;
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;
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;
The top of the first spring steel ball mounting hole of the second above-mentioned valve body is circular port and its internal diameter is less than the internal diameter of the first bolt hole; The bottom of the first spring steel ball mounting hole is reclinate arc and the top perforate of arc; 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; 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;
The left side of the first above-mentioned valve body divides front and back to be provided with 2 screw holes connected; Before and after second valve body, both sides are respectively provided with about 1 respectively to through installation attachment screw hole; The mode that the second above-mentioned valve body and the first valve body are fixedly connected be by 2 of the first valve body be connected with screw hole and the second valve body 2 attachment screw hole is installed matches to be screwed and be connected.
The present invention has positive effect: the unimpeded proving installation of (1) lower-cost moisture absorber of transformer of the present invention, and structure is simple, cost is lower.(2) the unimpeded proving installation of lower-cost moisture absorber of transformer of the present invention, small volume, is about
, the palm of the hand can be placed on easily; Lighter in weight, is about 2.2kg, is convenient to installation and maintenance personnel and carries.(3) the unimpeded proving installation of lower-cost moisture absorber of transformer of the present invention, only needs during installation to be serially connected between flange and dehydrating breather with bolt, easy for installation, time saving and energy saving.(4) the unimpeded proving installation of lower-cost moisture absorber of transformer of the present invention, only need to lash gas about 5 ~ 10 second during test, effectively can judge that whether dehydrating breather is unimpeded, than classic method, work efficiency significantly improves.
Accompanying drawing explanation
The principle schematic of the transformer moisture sorbing system that Fig. 1 applies for the present invention;
Fig. 2 is a kind of structural representation of the present invention;
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;
First valve body 1, installs connecting hole 11, respiratory ventilation hole 12, inflates venthole 13,
Second valve body 2, first bolt hole 21, first spring steel ball mounting hole 22, first gas port 23, second spring mounting hole 24, second bolt hole 25, venthole 26, the second gas port 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,
First tap bolt 7,
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 lower-cost moisture absorber of transformer of the present embodiment, be made up of the first valve body 1, second valve body 2, exhaust tube 3, piston component 4, spring 5, steel ball 6, first tap bolt 7, second tap bolt 8 and attachment screw 9.
First valve body 1 is 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 are respectively provided with the manhole of a up/down perforation respectively, as installation connecting hole 11.The left and right of the first valve body 1 to centre position, be respectively provided with the through manhole of a upward and downward, as respiratory ventilation hole 12 before and after point.The sagittal centre position of the left upper portion of the first valve body 1 is provided with a from left to right upwards through again through hole, 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 on sagittal axis generally within the first valve body 1.The lower middle portion of the upward and downward of the first valve body 1, sagittal centre position be provided with left and right for installing exhaust tube to manhole, as exhaust tube mounting hole; The left side of the first valve body 1 divides front and back to be provided with 2 screw holes connected.
See Fig. 8, the second valve body 2 is 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 second valve body 2 is substantially identical with the height of the upward and downward of the first valve body 1.
The center concentric of the second valve body 2 ground connection that is connected successively is from top to bottom provided with the first bolt hole 21, first spring steel ball mounting hole 22, first gas port 23, second spring mounting hole 24 and the second bolt hole 25.First bolt hole 21 is circular port with the second bolt hole 25 and is respectively equipped with the internal thread be connected; 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 reclinate arc and the top perforate of arc.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; 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.Before and after second valve body 2, both sides are respectively provided with about 1 respectively to through installation attachment screw hole.
The right upper portion of the second valve body 2 be provided with 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, second gas port 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.
Exhaust tube 3 entirety is steel pipe, and its left end opening, and right-hand member is semiclosed, the center of right-hand member be provided with left and right to manhole, as piston rod passing hole.The internal diameter of the external diameter of exhaust tube 3 and the exhaust tube mounting hole of the first valve body 1 adapts; Be fixedly mounted in the first valve body 1 by the exhaust tube mounting hole interference fit of its left part and the first valve body 1 when exhaust tube 3 is installed; 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 is made up of pull handle 41, piston rod 42, piston 43 and rubber seal 44.Pull handle 41 is plastics ball part, 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, and piston 43 is sheathed in exhaust tube 3 after being socketed O-ring seal 44 movably.
Spring 5 is provided with 2, is distinguished as upper spring 51 and lower spring 52 by residing upper-lower position during installation.Spring 5 is volute spring.The internal diameter in the external diameter of spring 5 and the upper circular hole of the first spring steel ball mounting hole 22 adapts.
Steel ball 6 is provided with identical 2, is distinguished as upper steel ball 61 and lower steel ball 62 by residing upper-lower position during installation.The external diameter of steel ball 6 and the internal diameter of spring 5 adapt.
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 extended to from bottom to top in 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 in the spring mounting hole other end of upper spring 51 being placed in 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.
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 extended to from top to bottom in bolt cap, the top of this spring steel ball mounting hole is circular port, bottom is reclinate arcuate socket, and the internal diameter in the upper circular hole of this spring steel ball mounting hole and the external diameter of spring 5 adapt; 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, attachment screw hole is installed and matches with 2 screw holes be connected in the left side of the first valve body 1 for 2 of second valve body 2, by attachment screw 9, 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 connected; The right output port of the second gas port 27 of the second valve body 2 connects with the left port of exhaust tube 3.
Principle of work and the course of work of the unimpeded proving installation of lower-cost moisture absorber of transformer of the present embodiment are summarized as follows:
See Fig. 1 and Fig. 7, during use, unimpeded for moisture absorber of transformer high for the work efficiency of the present embodiment proving installation is serially connected between dehydrating breather 07 and flange 06 by the installation connecting hole 11 in four bights of its first valve body 1 with bolt and O-ring seal sealing, now the first valve body 12 respiratory ventilation holes 12 with inflate venthole 13 upwards be connected air and 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 first to detect dehydrating breather 07, detect and only need the pull handle 41 manually holding piston component 4 to carry out bleeding and inflating and can realize:
When bleeding, when piston 43 by right outside pull-out time, be negative pressure in exhaust tube 3, cause extraneously producing a pressure reduction with pump bowl is inner, 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 to both sides, after filling air in exhaust tube 3 by the air intake opening 81 of the second tap bolt 8 and the gap, bottom of lower steel ball 62, inside and outside differential pressure disappears, lower spring 52 recovers elastic deformation, withstands lower steel ball 62 and shuts air intake opening 81, end of bleeding;
When inflating, when piston 43 is advanced left, the air in exhaust tube 3 is forced to enter lower spring, when air moves downward, because air intake opening 81 is closed by lower steel ball 62, and pressure larger time, the closure of lower steel ball 62 is better, therefore air can only move upward, act on steel ball 61, force spring 51 that elastic deformation occurs, air by the gap, bottom of upper steel ball 61 to two lateral movements, until inflate venthole 13 to the first valve body 1, 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 terminates.
Repeat above action, after bleeding back and forth and inflating, the air pressure of rubber capsule 05 inside is greater than external air pressure, the air of rubber capsule 05 inside is caused to move downward along connecting leg 02, through 2 respiratory ventilation holes 12 of the first valve body 1 to dehydrating breather 07, if now obviously bubble can be seen in lubricating cup 08, then illustrate that dehydrating breather 07 is breathed unimpeded, test completes, and can start the work of the discolour silica gel 09 changed in dehydrating breather 07.
To sum up, the unimpeded proving installation of lower-cost moisture absorber of transformer of the present embodiment, structure is simple, cost is lower; Small volume, is about
, the palm of the hand can be placed on easily; Lighter in weight, is about 2.2kg, is convenient to installation and maintenance personnel and carries; Only need during installation to be serially connected between flange and dehydrating breather with bolt, easy for installation, time saving and energy saving; Only need to lash gas about 5 ~ 10 second during test, effectively can judge that whether dehydrating breather is unimpeded, than classic method, work efficiency significantly improves.
Above embodiment is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique when do not depart from spirit of the present invention and; can also make various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all belong in scope of patent protection of the present invention.
Claims (1)
1. the unimpeded proving installation of lower-cost 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 part, and four bights of the first valve body (1) are respectively provided with the manhole of a up/down perforation respectively, as installation connecting hole (11); The left and right of the first valve body (1) to centre position, be respectively provided with the through manhole of a upward and downward, as respiratory ventilation hole (12) before and after point; The sagittal centre position of the left upper portion of the first valve body (1) is provided with a from left to right upwards through again through hole, as inflating venthole (13); The lower middle portion of the upward and downward of the first valve body (1), sagittal centre position be provided with left and right to manhole, as exhaust tube mounting hole;
Second valve body (2) is rectangular parallelepiped part or square part; The center concentric of the second valve body (2) ground connection that is connected successively is from top to bottom 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 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 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 left and right to manhole, as piston rod passing hole; 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 in exhaust tube (3) movably after piston (43) socket O-ring seal (44);
Spring (5) is volute spring, and spring (5) comprises spring (51) and lower spring (52);
Steel ball (6) comprises the identical upper steel ball (61) of structure and lower steel ball (62);
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 extended to from bottom to top in 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); First tap bolt (7) is fixedly connected with the first bolt hole (21) threaded engagement of the second valve body (2);
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 extended to from top to bottom in 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); Second tap bolt (8) is fixedly connected with the second bolt hole (25) threaded engagement of the second valve body (2);
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) connects; The right output port of second gas port (27) of the second valve body (2) connects with the left port of exhaust tube (3);
The upper end outlet of venthole (13) of inflating of described the first valve body (1) is positioned at the left side of 2 respiratory ventilation holes (12), and is positioned on the sagittal axis of the first valve body (1);
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);
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 is less than the internal diameter of the first bolt hole (21); The bottom of the first spring steel ball mounting hole (22) is reclinate arc and the top perforate of arc; 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); 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 left side of described the first valve body (1) divides front and back to be provided with 2 screw holes connected; Before and after second valve body (2), both sides are respectively provided with about 1 respectively to through installation attachment screw hole; The mode that described the second valve body (2) and the first valve body (1) are fixedly connected be by 2 of the first valve body (1) be connected with screw hole and the second valve body (2) 2 attachment screw hole is installed matches to be screwed and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237527.0A CN104880218B (en) | 2013-06-25 | 2013-06-25 | Relatively-low-cost device for testing mobility of dehydrating breather of transformer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258536.9A CN103292838B (en) | 2013-06-25 | 2013-06-25 | Testing device for unblocking of dehydrating breather of transformer |
| CN201510237527.0A CN104880218B (en) | 2013-06-25 | 2013-06-25 | Relatively-low-cost device for testing mobility of dehydrating breather of transformer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310258536.9A Division CN103292838B (en) | 2013-06-25 | 2013-06-25 | Testing device for unblocking of dehydrating breather of transformer |
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| Publication Number | Publication Date |
|---|---|
| CN104880218A true CN104880218A (en) | 2015-09-02 |
| CN104880218B CN104880218B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510237527.0A Active CN104880218B (en) | 2013-06-25 | 2013-06-25 | Relatively-low-cost device for testing mobility of dehydrating breather of transformer |
| CN201510237996.2A Active CN104848888B (en) | 2013-06-25 | 2013-06-25 | Transformer moisture absorber smoothness testing device with high working efficiency |
| CN201510236925.0A Active CN104848887B (en) | 2013-06-25 | 2013-06-25 | Portable transformer moisture absorber smoothness testing device |
| CN201310258536.9A Active CN103292838B (en) | 2013-06-25 | 2013-06-25 | Testing device for unblocking of dehydrating breather of transformer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510237996.2A Active CN104848888B (en) | 2013-06-25 | 2013-06-25 | Transformer moisture absorber smoothness testing device with high working efficiency |
| CN201510236925.0A Active CN104848887B (en) | 2013-06-25 | 2013-06-25 | Portable transformer moisture absorber smoothness testing device |
| CN201310258536.9A Active CN103292838B (en) | 2013-06-25 | 2013-06-25 | Testing device for unblocking of dehydrating breather of transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134153A (en) * | 2007-09-10 | 2008-03-05 | 株洲联诚集团有限责任公司 | Differential pressure automatic control type moisture absorption apparatus |
| JP2009200386A (en) * | 2008-02-25 | 2009-09-03 | Chugoku Electric Power Co Inc:The | Dehydrating breather and inner cylinder for dehydrating breather |
| CN201773667U (en) * | 2010-05-31 | 2011-03-23 | 湖州电力局 | Micro pressure relief flange for power transformer moisture absorber |
| JP2011204981A (en) * | 2010-03-26 | 2011-10-13 | Daihen Corp | Moisture absorption breathing device for oil-filled electric apparatus |
| CN202298817U (en) * | 2011-09-02 | 2012-07-04 | 赵晶 | Dredger with pump and deformation plugging for gas-liquid pipeline |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203287037U (en) * | 2013-06-25 | 2013-11-13 | 江苏省电力公司常州供电公司 | Unblockedness test device for transformer moisture absorber |
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- 2013-06-25 CN CN201510237527.0A patent/CN104880218B/en active Active
- 2013-06-25 CN CN201510237996.2A patent/CN104848888B/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134153A (en) * | 2007-09-10 | 2008-03-05 | 株洲联诚集团有限责任公司 | Differential pressure automatic control type moisture absorption apparatus |
| JP2009200386A (en) * | 2008-02-25 | 2009-09-03 | Chugoku Electric Power Co Inc:The | Dehydrating breather and inner cylinder for dehydrating breather |
| JP2011204981A (en) * | 2010-03-26 | 2011-10-13 | Daihen Corp | Moisture absorption breathing device for oil-filled electric apparatus |
| CN201773667U (en) * | 2010-05-31 | 2011-03-23 | 湖州电力局 | Micro pressure relief flange for power transformer moisture absorber |
| CN202298817U (en) * | 2011-09-02 | 2012-07-04 | 赵晶 | Dredger with pump and deformation plugging for gas-liquid pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104848888B (en) | 2017-01-25 |
| CN103292838A (en) | 2013-09-11 |
| CN104848887A (en) | 2015-08-19 |
| CN104848888A (en) | 2015-08-19 |
| CN104848887B (en) | 2017-01-25 |
| CN104880218B (en) | 2017-01-18 |
| CN103292838B (en) | 2015-06-03 |
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