CN103292838A - Testing device for unblocking of dehydrating breather of transformer - Google Patents
Testing device for unblocking of dehydrating breather of transformer Download PDFInfo
- Publication number
- CN103292838A CN103292838A CN2013102585369A CN201310258536A CN103292838A CN 103292838 A CN103292838 A CN 103292838A CN 2013102585369 A CN2013102585369 A CN 2013102585369A CN 201310258536 A CN201310258536 A CN 201310258536A CN 103292838 A CN103292838 A CN 103292838A
- Authority
- CN
- China
- Prior art keywords
- valve body
- spring
- steel ball
- mounting hole
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 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
- 238000000034 method Methods 0.000 abstract description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 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
- 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
Images
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention provides a testing device for unblocking of a dehydrating breather of a transformer. The device comprises a first valve, a second valve, an air exhaust tube, a piston component, two groups of springs, two groups of steel balls, a first tap bolt and a second tap bolt. Mounting connection holes, breathing vents, an inflation outlet and an air exhaust tube mounting hole are formed in the first valve; and 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, an air outlet and a second air guide hole are formed in the second valve. An air exhaust tube is fixed in the first valve; a piston of the piston component is sleeved movably in the air exhaust tube after a sealing ring is sleeved on the piston; and the two groups of the springs and the steel balls are fixed in the second valve through the first tap bolt and the second tap bolt respectively, and the second valve and the first valve are fixedly communicated with corresponding air holes. The device is simple in structure, low in cost, small in size, low in weight, and convenient to carry and mount; and compared with a traditional method, the work efficiency in testing whether the dehydrating breather is smooth and quick is greatly improved.
Description
Technical field
The present invention relates to the operational test set of the attached safety guard of transformer, be 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 rubber capsule 05 in the oil conservater 04 of flange 06 usefulness connecting leg 02 and transformer 01; The body bottom of dehydrating breather 07 has lubricating cup 08, fills transformer oil in the lubricating cup 08, as the filtration unit at dehydrating breather air ports place.Fill transformer oil in the transformer 01.Dehydrating breather 07 is when normal operating conditions, when transformer 01 expands the volume of transformer oil owing to the variation of load or environment temperature, transformer oil is pressed in the oil conservater 04 by connecting pipe 02 and gas relay 03, make gas in the oil conservater 04 by dehydrating breather 07 air-breathing and exhaust, thereby whether unimpededly cause having in the lubricating cup comparatively significantly bubble to roll observing dehydrating breather for the staff.But; under the situation of 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 the oil conservater 04 rises; extruding rubber capsule 05; because dehydrating breather stops up; air can't pass in and out; rubber capsule 05 compressed its internal air volume afterwards reduces; pressure increases; cause transformer the phenomenon of false oil level (the actual oil level of transformer and the indication of external table meter have difference) or 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 oil conservater 05 rapidly; oil stream will promote gas relay 03 interior baffle plate, and (gas relay is for being connected in the 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; in connecting leg, produce oily flow phenomenon; 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; cut off power of transformer, play the effect of protection transformer), cause the protection misoperation; transformer 01 is stopped transport, and has 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 owing to temperature, power load is uncertain, and the transformer oil volume expands with heat and contract with cold very small sometimes, so bubble is very not obvious sometimes in the lubricating cup 08 of dehydrating breather 07, observes to the staff and brings difficulty, influences work efficiency.
Summary of the invention
The objective of the invention 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 transformer dehydrating breather preferably.
Technical scheme of the present invention is: the unimpeded proving installation of transformer dehydrating breather of the present invention, and its design feature is: comprise first valve body, second valve body, exhaust tube, piston component, spring, steel ball, first tap bolt and second tap bolt;
The first above-mentioned valve body is rectangular parallelepiped or square spare, and four bights of first valve body respectively are provided with the manhole of a up/down perforation respectively, as connecting hole is installed; About first valve body to the centre position, respectively be provided with the manhole that a upward and downward connects before and after dividing, as the respiratory ventilation hole; The sagittal centre position of the left upper portion of first valve body is provided with a through hole that from left to right upwards connects again, as inflating venthole; About the lower middle portion of the upward and downward of first valve body, sagittal centre position are provided with to manhole, as the exhaust tube mounting hole;
Second valve body is rectangular parallelepiped spare or square spare; The center concentric of second valve body ground connection that links to each other successively from top to bottom is provided with first bolt hole, the first spring steel ball mounting hole, first gas port, second spring mounting hole and second bolt hole; About the right upper portion of second valve body is provided with 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 second valve body; About the lower right side of second valve body is provided with to second gas port, the left port of second gas port communicates with first gas port; The right side port of second gas port is positioned on the right side of second valve body;
Exhaust tube is left end opening, the semi-enclosed tube-like piece of right-hand member; About the center of the right-hand member of exhaust tube is provided with to manhole, pass through the hole as piston rod; Exhaust tube is fixedly mounted in the exhaust tube mounting hole of first valve body by its left part; The right part of exhaust tube stretches out to the right from the right flank of first valve body;
Piston component comprises pull handle, piston rod, piston and rubber seal; Pull handle is fixedlyed connected with the right-hand member of piston rod; The left end of piston rod is fixedlyed connected with piston, is sheathed in the exhaust tube movably behind the piston socket O-ring seal;
Spring is volute spring, and spring comprises upper spring and lower spring;
Steel ball comprises the identical last steel ball of structure and following steel ball;
First tap bolt comprises bolt cap and key, and the center of the key of 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 last steel ball is located at the lower end of the first spring steel ball mounting hole of second valve body; One end of upper spring contacts with last steel ball, and the other end of upper spring contacts with the upper surface of the spring mounting hole of first tap bolt; First tap bolt is fixedlyed connected with the first bolt hole threaded engagement of second valve body;
Second tap bolt comprises bolt cap and key, and the center of the key of 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 second tap bolt is provided with the manhole of up/down perforation, as air admission hole; Following steel ball is located at the lower end of the spring steel ball mounting hole of second tap bolt; One end of lower spring contacts with following steel ball, lower spring the other end place in second spring mounting hole of second valve body; Second tap bolt is fixedlyed connected with the second bolt hole threaded engagement of second valve body;
Second valve body is fixedlyed connected with first valve body; And the left port of venthole of inflating of the right output port of the venthole of second valve body and first valve body is joined; The right output port of second gas port of 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 first valve body.
Further scheme is: the sagittal length of the second above-mentioned valve body is about the front and back of first valve body to 1/2nd of width; About second valve body to width be about first valve body about to length 1/4th; The height of the upward and downward of second valve body is identical with the height of the upward and downward of first valve body.
Further scheme is: the top of the first spring steel ball mounting hole of the second above-mentioned valve body is that circular port and its internal diameter are less than the internal diameter of first bolt hole; The bottom of the first spring steel ball mounting hole is the top perforate of reclinate arc and arc; First gas port is circular port, and the internal diameter of 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 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 usefulness before and after the left side of the first above-mentioned valve body is divided; Both sides respectively are provided with respectively about 1 to the installation attachment screw hole that connects before and after second valve body; The fixedly connected mode of the second above-mentioned valve body and first valve body is connected for the screw hole that is connected usefulness by 2 of first valve body matches to be screwed with 2 installation attachment screw holes of second valve body.
The present invention has positive effect: the unimpeded proving installation of (1) transformer dehydrating breather of the present invention, and simple in structure, cost is lower.(2) the unimpeded proving installation of transformer dehydrating breather of the present invention, volume is less, is about 8.125cm
3, can be placed on the palm of the hand easily; Weight is lighter, is about 2.2kg, is convenient to the installation and maintenance personnel and carries.(3) the unimpeded proving installation of transformer dehydrating breather of the present invention only need be serially connected between flange and the dehydrating breather with bolt during installation, and is easy for installation, time saving and energy saving.(4) the unimpeded proving installation of transformer dehydrating breather of the present invention only need be lashed 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 present invention system;
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 second valve body among Fig. 7.
Reference numeral in the above-mentioned accompanying drawing is as follows:
Second valve body, 2, the first bolts hole, 21, the first spring steel ball mounting holes, 22, the first gas ports 23, 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, last steel ball 61, following steel ball 62,
Embodiment
(embodiment 1)
See Fig. 2 to Fig. 7, the unimpeded proving installation of transformer dehydrating breather of present embodiment is made up of first valve body 1, second valve body 2, exhaust tube 3, piston component 4, spring 5, steel ball 6, first tap bolt, 7, the second tap bolts 8 and attachment screw 9.
Referring to Fig. 8, second valve body 2 is the steel integral piece.The global shape of second valve body 2 is rectangular parallelepiped or square.The sagittal length of second valve body 2 is about the front and back of first valve body 1 to 1/2nd of width; About second valve body 2 to width be about first valve body 1 about to length 1/4th; The height of the upward and downward of the height of the upward and downward of second valve body 2 and first valve body 1 is basic identical.
The center concentric of second valve body 2 ground connection that links to each other successively from top to bottom is provided with first bolt hole 21, the first spring steel ball mounting hole 22, first gas port 23, second spring mounting hole 24 and second bolt hole 25.First bolt hole 21 is circular port and is respectively equipped with the internal thread that is connected usefulness with second bolt hole 25; 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 first bolt hole 21; The bottom of the first spring steel ball mounting hole 22 is the top perforate of reclinate arc and arc.First gas port 23 is circular port, and the internal diameter of 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 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.Both sides, second valve body, 2 front and back respectively are provided with respectively about 1 to the installation attachment screw hole that connects.
About the right upper portion of second valve body 2 is provided with 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 second valve body 2; About the lower right side of second valve body 2 is provided with to the left port of second gas port, 27, the second gas ports 27 communicate with first gas port 23; The right side port of second gas port 27 is positioned on the right side of second valve body 2.
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 spare, and piston rod 42 is steel pipe.Pull handle 41 is fixedlyed connected with the right-hand member of piston rod 42; The left end of piston rod 42 is fixedlyed connected with piston 43, is sheathed on movably in the exhaust tube 3 behind the piston 43 socket O-ring seals 44.
Spring 5 is provided with 2, and residing upper-lower position difference is upper spring 51 and lower spring 52 during by installation.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 residing upper-lower position difference is last steel ball 61 and following steel ball 62 during by installation.The internal diameter of the external diameter of steel ball 6 and spring 5 adapts.
During installation, the attachment screw hole is installed matches with 2 screw holes that are connected usefulness in the left side of first valve body 1 for 2 of second valve body 2, by attachment screw 9 second valve body 2 is fixedlyed connected with first valve body 1, and the left port of venthole 13 of inflating of the right output port of venthole 26 of second valve body 2 and first valve body 1 is joined; The right output port of second gas port 27 of 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 transformer dehydrating breather of present embodiment are summarized as follows:
See Fig. 1 and Fig. 7, during use, installation connecting hole 11 usefulness bolts and the O-ring seal sealing by four bights of its first valve body 1 of the unimpeded proving installation of transformer dehydrating breather of present embodiment is serially connected between dehydrating breather 07 and the flange 06, this moment first valve body 12 respiratory ventilation holes 12 with inflate venthole 13 and upwards communicate with being connected air, 2 respiratory ventilation holes 12 of 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 first valve body 1.
Whether when the discolour silica gel 09 in the dehydrating breather 07 needs to change, it is unimpeded to need to detect dehydrating breather 07 earlier, detects the pull handle 41 that only need manually hold piston component 4 and bleeds and inflate and can realize:
When bleeding, when piston 43 is pulled out outside to the right, be negative pressure in the exhaust tube 3, cause extraneous and pressure reduction of the inner generation of pump bowl, the acting force that this pressure reduction produces acts on down the bottom of steel ball 62, force lower spring 52 that deformation takes place, air enters exhaust tube 3 by the air intake opening 81 of second tap bolt 8 and the slit, bottom of following steel ball 62 to both sides, after filling with air in the exhaust tube 3, inside and outside differential pressure disappears, lower spring 52 recovers elastic deformation, withstands down steel ball 62 and shuts air intake opening 81, the end of bleeding;
When inflating, when piston 43 is advanced left, force the air in the exhaust tube 3 to enter lower spring, when air moves downward, because air intake opening 81 is by steel ball 62 sealings down, and pressure is when more big, and the closure of following steel ball 62 is more good, so air can only move upward, act on steel ball 61, force upper spring 51 that elastic deformations take place, air by the slit, bottom of last steel ball 61 to two lateral movements, until inflating venthole 13 to first valve body 1, because the venthole 13 of inflating links to each other with connecting leg 02, therefore air finally enters in the rubber capsule 05 of oil conservater 04 inside, arrives this, one bout bleed and the process of inflating finishes.
Repeat above action, through 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 first valve body 1, if can obviously see bubble in the lubricating cup 08 this moment, illustrates that then dehydrating breather 07 breathing is unimpeded, test is finished, and can begin to change the work of the discolour silica gel 09 in the dehydrating breather 07.
To sum up, the unimpeded proving installation of transformer dehydrating breather of present embodiment, simple in structure, cost is lower; Volume is less, is about 8.125cm
3, can be placed on the palm of the hand easily; Weight is lighter, is about 2.2kg, is convenient to the installation and maintenance personnel and carries; Only need be serially connected between flange and the dehydrating breather with bolt during installation, easy for installation, time saving and energy saving; Only need 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 the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique do not break away from spirit of the present invention and situation under; can also make various conversion and obtain the corresponding technical scheme that is equal to variation, so all technical schemes that are equal to all belong in scope of patent protection of the present invention.
Claims (5)
1. the unimpeded proving installation of transformer dehydrating breather is characterized in that: comprise first valve body (1), second valve body (2), exhaust tube (3), piston component (4), spring (5), steel ball (6), first tap bolt (7) and second tap bolt (8);
Described first valve body (1) is rectangular parallelepiped or square spare, and four bights of first valve body (1) respectively are provided with the manhole of a up/down perforation respectively, as connecting hole (11) is installed; About first valve body (1) to the centre position, respectively be provided with the manhole that a upward and downward connects before and after dividing, as respiratory ventilation hole (12); The sagittal centre position of the left upper portion of first valve body (1) is provided with a through hole that from left to right upwards connects again, as inflating venthole (13); About the lower middle portion of the upward and downward of first valve body (1), sagittal centre position are provided with to manhole, as the exhaust tube mounting hole;
Second valve body (2) is rectangular parallelepiped spare or square spare; The center concentric of second valve body (2) ground connection that links to each other successively from top to bottom is provided with first bolt hole (21), the first spring steel ball mounting hole (22), first gas port (23), second spring mounting hole (24) and second bolt hole (25); About the right upper portion of second valve body (2) is provided with 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 second valve body (2); About the lower right side of second valve body (2) is provided with to second gas port (27), the left port of second gas port (27) communicates with first gas port (23); The right side port of second gas port (27) is positioned on the right side of second valve body (2);
Exhaust tube (3) is left end opening, the semi-enclosed tube-like piece of right-hand member; About the center of the right-hand member of exhaust tube (3) is provided with to manhole, pass through the hole as piston rod; Exhaust tube (3) is fixedly mounted in the exhaust tube mounting hole of 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 first valve body (1);
Piston component (4) comprises pull handle (41), piston rod (42), piston (43) and rubber seal (44); Pull handle (41) is fixedlyed connected with the right-hand member of piston rod (42); The left end of piston rod (42) is fixedlyed connected with piston (43), is sheathed on movably behind piston (43) the socket O-ring seal (44) in the exhaust tube (3);
Spring (5) is volute spring, and spring (5) comprises upper spring (51) and lower spring (52);
Steel ball (6) comprises last steel ball (61) and the following steel ball (62) that structure is identical;
First tap bolt (7) comprises bolt cap and key, the center of the key of 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 last steel ball (61) is located at the lower end of the first spring steel ball mounting hole (22) of second valve body (2); One end of upper spring (51) contacts with last steel ball (61), and the other end of upper spring (51) contacts with the upper surface of the spring mounting hole of first tap bolt (7); First tap bolt (7) is fixedlyed connected with first bolt hole (21) threaded engagement of second valve body (2);
Second tap bolt (8) comprises bolt cap and key, and the center of the key of 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 second tap bolt (8) is provided with the manhole of up/down perforation, as air admission hole (81); Following steel ball (62) is located at the lower end of the spring steel ball mounting hole of second tap bolt (8); One end of lower spring (52) contacts with following steel ball (62), lower spring (52) the other end place in second spring mounting hole (24) of second valve body (2); Second tap bolt (8) is fixedlyed connected with second bolt hole (25) threaded engagement of second valve body (2);
Second valve body (2) is fixedlyed connected with first valve body (1); And the left port of venthole (13) of inflating of the right output port of the venthole (26) of second valve body (2) and first valve body (1) is joined; The right output port of second gas port (27) of second valve body (2) and the left port of exhaust tube (3) are joined.
2. the unimpeded proving installation of transformer dehydrating breather according to claim 1, it is characterized in that: the upper end outlet of venthole (13) of inflating of described first valve body (1) is positioned at the left side in 2 respiratory ventilation holes (12), and is positioned on the sagittal axis of first valve body (1).
3. the unimpeded proving installation of transformer dehydrating breather according to claim 1, it is characterized in that: the sagittal length of described second valve body (2) is about the front and back of first valve body (1) to 1/2nd of width; About second valve body (2) to width be about first valve body (1) about to length 1/4th; The height of the upward and downward of second valve body (2) is identical with the height of the upward and downward of first valve body (1).
4. the unimpeded proving installation of transformer dehydrating breather according to claim 1 is characterized in that: the top of the first spring steel ball mounting hole (22) of described second valve body (2) is that circular port and its internal diameter are less than the internal diameter of first bolt hole (21); The bottom of the first spring steel ball mounting hole (22) is the top perforate of reclinate arc and arc; First gas port (23) is circular port, and the internal diameter of 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 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 transformer dehydrating breather according to claim 1 is characterized in that: the screw hole that is provided with 2 connection usefulness before and after the left side of described first valve body (1) is divided; Both sides respectively are provided with respectively about 1 to the installation attachment screw hole that connects before and after second valve body (2); The fixedly connected mode of described second valve body (2) and first valve body (1) is connected for the screw hole that is connected usefulness by 2 of first valve body (1) matches to be screwed with 2 installation attachment screw holes of second valve body (2).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236925.0A CN104848887B (en) | 2013-06-25 | 2013-06-25 | Portable transformer moisture absorber smoothness testing device |
| CN201510237996.2A CN104848888B (en) | 2013-06-25 | 2013-06-25 | Transformer moisture absorber smoothness testing device with high working efficiency |
| 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 |
Applications Claiming Priority (1)
| 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 |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510237996.2A Division CN104848888B (en) | 2013-06-25 | 2013-06-25 | Transformer moisture absorber smoothness testing device with high working efficiency |
| CN201510237527.0A Division CN104880218B (en) | 2013-06-25 | 2013-06-25 | Relatively-low-cost device for testing mobility of dehydrating breather of transformer |
| CN201510236925.0A Division CN104848887B (en) | 2013-06-25 | 2013-06-25 | Portable transformer moisture absorber smoothness testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103292838A true CN103292838A (en) | 2013-09-11 |
| CN103292838B CN103292838B (en) | 2015-06-03 |
Family
ID=49094092
Family Applications (4)
| 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 |
Family Applications Before (3)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN104880218B (en) |
Citations (6)
| 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 |
| 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 |
-
2013
- 2013-06-25 CN CN201510237527.0A patent/CN104880218B/en active Active
- 2013-06-25 CN CN201510237996.2A patent/CN104848888B/en active Active
- 2013-06-25 CN CN201510236925.0A patent/CN104848887B/en active Active
- 2013-06-25 CN CN201310258536.9A patent/CN103292838B/en active Active
Patent Citations (6)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104848888B (en) | 2017-01-25 |
| CN104848887A (en) | 2015-08-19 |
| CN104848888A (en) | 2015-08-19 |
| CN104880218A (en) | 2015-09-02 |
| CN104848887B (en) | 2017-01-25 |
| CN104880218B (en) | 2017-01-18 |
| CN103292838B (en) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201643862U (en) | Detection device for testing integrity of filter element structure | |
| CN203287037U (en) | Unblockedness test device for transformer moisture absorber | |
| CN105319029A (en) | Oil cooling AC generator housing seal test apparatus | |
| CN103292838B (en) | Testing device for unblocking of dehydrating breather of transformer | |
| CN201997510U (en) | Air pressure cleaning machine | |
| CN207554807U (en) | A kind of natural gas line device for preventing leakage | |
| CN202884439U (en) | Pneumatic grease filling device | |
| CN202535338U (en) | Breathing monitoring device and transformer | |
| CN210533634U (en) | Long tube gas cylinder gas tightness testing arrangement | |
| CN201896977U (en) | Overpressure protector | |
| CN210698554U (en) | Transmission power mechanism for fire extinguishing device | |
| CN203844991U (en) | Swimming protection device | |
| CN204729140U (en) | A kind of outlet line device for little machine lubricating oil system | |
| CN207621461U (en) | A kind of ftercompction rotating vane type alarm valve | |
| CN203066160U (en) | Negative-pressure suppressor | |
| CN221146208U (en) | Protection device for natural gas storage tank | |
| CN219990849U (en) | Waterproof and antifreezing buffer device | |
| CN202703148U (en) | Valve body type tire burst prevention device | |
| CN202708018U (en) | Ventilation device of speed reducer | |
| CN203345509U (en) | Antioxidant protecting device for heat transfer oil | |
| CN205191087U (en) | Connecting device convenient to gas pipeline maintenance | |
| CN205578729U (en) | Boiler desulfurization seal air system | |
| CN218914552U (en) | Buffering silencing device | |
| CN220870214U (en) | Oil tank emergency stop valve with indication function | |
| CN204043873U (en) | Oil cooling alternator body tightness test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |