CN110429486A - A kind of power distribution cabinet - Google Patents
A kind of power distribution cabinet Download PDFInfo
- Publication number
- CN110429486A CN110429486A CN201910861650.8A CN201910861650A CN110429486A CN 110429486 A CN110429486 A CN 110429486A CN 201910861650 A CN201910861650 A CN 201910861650A CN 110429486 A CN110429486 A CN 110429486A
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- Prior art keywords
- positive pressure
- cabinet
- limit
- cylinder
- counterweight
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Drying Of Gases (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a kind of power distribution cabinets, including cylinder cabinet and positive pressure mechanism；Cylinder cabinet include cabinet body, the cabinet door that can be connected and fixed with cabinet body, the elastic sealing strip in cabinet door and it is several be set to the intracorporal diaphragm plate of cabinet；Positive pressure mechanism includes positive pressure clump weight and positive pressure cylinder body, positive pressure clump weight includes counterweight cone, the positive pressure inner piston that cooperation is slidingly sealed with positive pressure cylinder body is equipped in positive pressure cylinder body, positive pressure inner piston is equipped with positive pressure piston rod, positive pressure piston rod connects positive pressure clump weight, and positive pressure is secondary intracavitary equipped with positive pressing spring；It further include blowdown pipe, positive pressure cylinder body is equipped with air intake duct.The beneficial effects of the present invention are: can provide positive pressure protection function, it is avoided that the corrosive gas in external environment enters inside power distribution cabinet, positive pressure protection function can effectively cover each region inside power distribution cabinet；Positive pressure protection function has the function of automatically turning on and suspend, structurally reasonable, can avoid positive pressure mechanism excessive exercise, good working effect.
Description
Technical field
The invention belongs to controller switching equipment, electric power electrical apparatus technical field more particularly to a kind of power distribution cabinets.
Background technique
Power distribution cabinet belongs to common controller switching equipment or electric power electrical apparatus.Power distribution cabinet when in use, in can install and set perhaps
More electrical components, due to power distribution cabinet use environment greatly, one of which be exactly need corrosive gas concentration compared with
It is used in high indoor environment, at this point, corrosion-resistant material (or spray painting protection etc.) no doubt can be used in the shell of power distribution cabinet, but in it
The electrical component in portion be should not long-time contact corrosion gas (in practice, since power distribution cabinet is that plate assembles up, and
Usually there is cabinet door etc. to need the retractable structure using rubber strip come auxiliary seal, so power distribution cabinet is not accomplish to be absolutely sealed
, still there is the case where gas slowly flows in or out, this results in power distribution cabinet external corrosion gas still to can enter
In power distribution cabinet), it is exactly in distribution that this, which just needs to be protected by the way of " positive pressure protection ", herein so-called positive pressure protection
It is filled with air or other protective gas (such as nitrogen) inside cabinet, and power distribution cabinet air pressure inside is maintained to be higher than locating for power distribution cabinet outside
Indoor air pressure, in this way, which the corrosive gas in indoor environment cannot propagate into inside power distribution cabinet, so as to effectively protect
Protect the electrical component inside power distribution cabinet.However, as time goes by, the gas in power distribution cabinet is also that will be slow leakage, when
When power distribution cabinet air pressure inside deficiency, the corrosive gas in indoor environment will enter power distribution cabinet inside, and (air pressure is not completely not
Become, power distribution cabinet air pressure inside drop to indoor environment air pressure close to after, as long as in indoor environment a certain moment because of temperature liter
High or gas flow increases and air pressure is caused to rise, and will result in power distribution cabinet external pressure higher than power distribution cabinet air pressure inside), cause
Electrical component long-time contact corrosion gas after this inside power distribution cabinet.
Summary of the invention
The present invention provides a kind of power distribution cabinets, it is possible to provide positive pressure protection function, the corrosivity gas being avoided that in external environment
Body enters inside power distribution cabinet, and positive pressure protection function can effectively cover each region in power distribution cabinet inside, and protecting effect is good.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of power distribution cabinet, including being set to indoor cylinder cabinet and set on outdoor positive pressure mechanism；
The cylinder cabinet includes cabinet body, the cabinet door that can be connected and fixed with cabinet body, the elastic sealing strip in cabinet door and several
Set on the intracorporal diaphragm plate of cabinet, diaphragm plate is equipped with several partition stomatas, and each diaphragm plate is from top to bottom sequentially arranged, at the top of cabinet body
Unit distribution chamber is formed between the diaphragm plate of the top, forms unit distribution chamber, bottom of cabinet bulk between two neighboring diaphragm plate
Unit distribution chamber is formed between the diaphragm plate of bottom, when cabinet door is connected and fixed with cabinet body, cabinet door is closed, cabinet body and cabinet door
Between gap sealed by elastic sealing strip, when cabinet door open when, all unit distribution chambers are connected to the cabinet body external world；
The positive pressure mechanism includes positive pressure clump weight and positive pressure cylinder body, and positive pressure clump weight includes counterweight cone, counterweight cone
Bottom surface be in below vertex, be equipped with the positive pressure inner piston that cooperation is slidingly sealed with positive pressure cylinder body in positive pressure cylinder body, it is living in positive pressure
It is vertical to fill in glide direction, the positive pressure pair chamber that positive pressure cylinder interior is separated into positive pressure main chamber and is communicated with the atmosphere by positive pressure inner piston,
Positive pressure inner piston is equipped with the positive pressure piston rod across positive pressure pair chamber, and positive pressure piston rod connects positive pressure clump weight, and positive pressure pair is intracavitary
Equipped with positive pressing spring, positive pressure spring one end connects positive pressure inner piston, and the positive pressing spring other end connects positive pressure cylinder body, positive pressure counterweight
Block, positive pressure pair chamber and positive pressure main chamber are from top to bottom sequentially arranged；
It further include blowdown pipe, blowdown pipe one end is connected to positive pressure main chamber, and the blowdown pipe other end is in interior of the cabinet, and blowdown pipe is equipped with
Tonifying Qi check valve, positive pressure cylinder body are equipped with the air intake duct being connected to positive pressure main chamber, and air intake duct is equipped with breather cheek valve, tonifying Qi list
It can be by positive pressure main chamber by direction through tonifying Qi check valve to interior of the cabinet to valve, breather cheek valve can be by atmosphere by direction
Through breather cheek valve to positive pressure main chamber.
Preferably, further include rain shade, rain shade includes being in refractory slab above positive pressure mechanism and several being used to support
The canopy bar of refractory slab, refractory slab cover positive pressure mechanism and air intake duct, and canopy bar upper end connects refractory slab, and canopy bar lower end and outdoor ground are solid
Fixed, the apex of counterweight cone is equipped with the elastic buffer ball for contacting refractory slab.
Preferably, the air intake duct includes inside tube body and drying tube, inside tube body one end is connected to positive pressure main chamber, interior
The side pipe body other end is equipped with external thread section, and drying tube includes outside tube body, is fixed on the dry packet of the intracorporal moisture absorption of outboard tube and sets
Internal thread segment in outside tube body one end, internal thread segment and external thread section are cooperatively connected, and breather cheek valve is arranged in inside tube body
On.
Preferably, the positive pressure clump weight further includes the counterweight cylindrical body arranged vertically, counterweight cone bottom surface with match
Bicircular cylinder top surface is fixed, and positive pressure piston rod connects counterweight cylindrical body bottom surface, and positive pressure piston rod and counterweight cylindrical body are coaxially arranged.
Preferably, further including several position-limit mechanisms for being set to outdoor, position-limit mechanism includes limit body and limit cylinder body, list
First distribution is intracavitary to be equipped with alarm pipe, and position-limit mechanism and alarm pipe correspond, in corresponding position-limit mechanism and alarm pipe: limit
Equipped with the limit inner piston for being slidingly sealed cooperation with limit cylinder body in cylinder body, limit inner piston glide direction is horizontal, limits interior living
Plug will limit cylinder interior and be separated into the limit pair chamber for limiting main chamber and being communicated with the atmosphere, and limit inner piston is equipped with across limit
The limiting piston bar of secondary chamber, limiting piston bar are equipped with the limit body for contacting counterweight cylinder bottom, and limit pair is intracavitary to be set
There are limit spring, limit spring one end connection limit inner piston, limit spring other end connection limit cylinder body, limit main chamber, limit
The secondary chamber in position, limit body and counterweight cylinder axis are axially sequentially arranged along limiting piston bar, and alarm pipe one end passes through middle gas tube
Be connected to limit main chamber, P is standard atmospheric pressure, limit main chamber in air pressure be M, when M be greater than 1.3P when, limit body vertical projection with
Counterweight cylindrical body vertical projection has intersection, and when M is less than or equal to 1.3P, limit body vertical projection and counterweight cylindrical body are perpendicular
Shadow is delivered directly without intersection.
Preferably, the cylinder cabinet axis vertical, alarm pipe is coaxially arranged with cylinder cabinet, and blowdown pipe is in cabinet body
The unit distribution that internal one end is located at the top is intracavitary.
Preferably, further including several perpendicular guide rods being fixed on outdoor ground, positive pressure clump weight and the sliding of perpendicular guide rod connect
It connects.
The beneficial effects of the present invention are: can provide positive pressure protection function, be avoided that corrosive gas in external environment into
Enter inside power distribution cabinet, positive pressure protection function can effectively cover each region inside power distribution cabinet；Positive pressure protection function has to be opened automatically
The function of opening and suspend, it is structurally reasonable, it can avoid positive pressure mechanism excessive exercise, good working effect.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the sectional view in Fig. 1 at S-S；
Fig. 3 is the enlarged drawing in Fig. 1 at A；
Fig. 4 is the enlarged drawing in Fig. 1 at B.
Appended drawing reference: cylinder cabinet 1, unit distribution chamber 1a, cabinet body 11, diaphragm plate 12, alarm pipe 13, positive pressure clump weight
21, counterweight cone 211, counterweight cylindrical body 212, positive pressure cylinder body 22, positive pressure inner piston 221, positive pressure main chamber 22a, positive pressure pair chamber
22b, positive pressure piston rod 223, positive pressing spring 224, elastic buffer ball 23, perpendicular guide rod 24, blowdown pipe 3, air intake duct 4, inside tube body
41, drying tube 42, rain shade 5, refractory slab 51, canopy bar 52, limit body 61, limit cylinder body 62, limit main chamber 62a, the secondary chamber of limit
62b, limit inner piston 621, limiting piston bar 622, limit body 623, limit spring 624.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 4,
A kind of power distribution cabinet, including being set to indoor cylinder cabinet 1 and set on outdoor positive pressure mechanism；
If the cylinder cabinet include cabinet body 11, the cabinet door that can be connected and fixed with cabinet body, the elastic sealing strip in cabinet door and
Dry to be set to the intracorporal diaphragm plate 12 of cabinet, diaphragm plate is equipped with several partition stomatas, and each diaphragm plate is from top to bottom sequentially arranged, cabinet body
Unit distribution chamber 1a is formed between top and the diaphragm plate of the top, forms unit distribution chamber, cabinet between two neighboring diaphragm plate
Unit distribution chamber is formed between body bottom and the diaphragm plate of bottom, when cabinet door is connected and fixed with cabinet body, cabinet door is closed, cabinet body
Gap between cabinet door is sealed by elastic sealing strip, and when cabinet door is opened, all unit distribution chambers are connected to the cabinet body external world；
The positive pressure mechanism includes positive pressure clump weight 21 and positive pressure cylinder body 22, and positive pressure clump weight includes counterweight cone 211, counterweight
The bottom surface of cone is in below vertex, and the positive pressure inner piston 221 that cooperation is slidingly sealed with positive pressure cylinder body is equipped in positive pressure cylinder body,
Positive pressure inner piston glide direction is vertical, and positive pressure cylinder interior is separated into positive pressure main chamber 22a and is communicated with the atmosphere by positive pressure inner piston
Positive pressure pair chamber 22b, positive pressure inner piston be equipped with across positive pressure pair chamber positive pressure piston rod 223, positive pressure piston rod connect positive pressure
Clump weight, positive pressure is secondary intracavitary equipped with positive pressing spring 224, and positive pressure spring one end connects positive pressure inner piston, and the positive pressing spring other end connects
Positive pressure cylinder body is connect, positive pressure clump weight, positive pressure pair chamber and positive pressure main chamber are from top to bottom sequentially arranged；
It further include blowdown pipe 3, blowdown pipe one end is connected to positive pressure main chamber, and the blowdown pipe other end is in interior of the cabinet, sets on blowdown pipe
There is tonifying Qi check valve, positive pressure cylinder body is equipped with the air intake duct 4 being connected to positive pressure main chamber, and air intake duct is equipped with breather cheek valve, mends
Gas check valve can be by positive pressure main chamber through tonifying Qi check valve to interior of the cabinet by direction, and breather cheek valve can be served as reasons by direction
Atmosphere is through breather cheek valve to positive pressure main chamber.
When the invention works, outdoor air lateral flow (when i.e. outdoor blows air over) can drive positive pressure clump weight or more
Mobile (positive pressure clump weight includes that counterweight cone has a downward component after counterweight cone is by lateral wind, and
Positive pressing spring can provide upward restoring force again, so when stronger, the downward power of lateral wind-force is relatively large, it is positive to be press-fitted
Pouring weight can move down, and when weaker, the upward power of lateral wind-force is larger, positive pressure clump weight be will be shifted up).In this way, work as positive pressure
When clump weight moves down, positive pressure piston rod, positive pressure inner piston is driven to move down, portion of air enters cabinet through blowdown pipe in positive pressure main chamber
Internal portion, and the diaphragm plate of interior of the cabinet is equipped with several partition stomatas, so each unit distribution chamber can obtain gas
Supplement, from the problem without air pressure inside deficiency.
It further include rain shade 5, rain shade includes being in refractory slab 51 above positive pressure mechanism and several being used to support refractory slab
Canopy bar 52, refractory slab cover positive pressure mechanism and air intake duct, and canopy bar upper end connects refractory slab, and canopy bar lower end is fixed with outdoor ground, matched
The apex of bicircular cone is equipped with the elastic buffer ball 23 for contacting refractory slab.Rain shade can be effectively to structures such as positive pressure mechanisms
Carry out rain-proof protection.
The air intake duct includes inside tube body 41 and drying tube 42, and inside tube body one end is connected to positive pressure main chamber, inside tube
The body other end is equipped with external thread section, and drying tube includes outside tube body, is fixed on the dry packet of the intracorporal moisture absorption of outboard tube and is set to outer
The internal thread segment of side pipe body one end, internal thread segment and external thread section are cooperatively connected, and breather cheek valve is arranged on inside tube body.It inhales
The dry packet of tide can be conventional bagged dryer, packaging desiccant etc. can arbitrarily be used to absorb water, the drying structure of the moisture absorption.Supplement
Drying tube can be first passed through into the intracorporal air of cabinet, can prevent a large amount of aqueous vapors from entering interior of the cabinet, thus electrical to interior of the cabinet
Element has carried out effective protection.Drying tube (the dry packet of the moisture absorption) can be regularly replaced.
The positive pressure clump weight further includes the counterweight cylindrical body 212 arranged vertically, counterweight cone bottom surface and counterweight cylinder
Body top surface is fixed, and positive pressure piston rod connects counterweight cylindrical body bottom surface, and positive pressure piston rod and counterweight cylindrical body are coaxially arranged.
It further include several position-limit mechanisms for being set to outdoor, position-limit mechanism includes limit body 61 and limit cylinder body 62, and unit is matched
Electricity is intracavitary to be equipped with alarm pipe 13, and position-limit mechanism and alarm pipe correspond, in corresponding position-limit mechanism and alarm pipe: limit cylinder
In vivo equipped with the limit inner piston 621 for being slidingly sealed cooperation with limit cylinder body, limit inner piston glide direction is horizontal, limits interior living
Plug will limit cylinder interior and be separated into the limit pair chamber 62b for limiting main chamber 62a and being communicated with the atmosphere, and limit inner piston, which is equipped with, to be worn
The limiting piston bar 622 for limiting secondary chamber is crossed, limiting piston bar is equipped with the limit body 623 for contacting counterweight cylinder bottom,
Limit is secondary intracavitary equipped with limit spring 624, limit spring one end connection limit inner piston, limit spring other end connection limit cylinder
Body, limit main chamber, the secondary chamber of limit, limit body and counterweight cylinder axis are axially sequentially arranged along limiting piston bar, pipe one of alarming
End is connected to limit main chamber by middle gas tube, and P is standard atmospheric pressure, and limiting air pressure in main chamber is M, when M is greater than 1.3P, limit
Position body vertical projection and counterweight cylindrical body vertical projection have intersection, when M is less than or equal to 1.3P, limit body vertical projection
With counterweight cylindrical body vertical projection without intersection.
Position-limit mechanism can the air pressure intracavitary to unit distribution be monitored, due to unit distribution chamber by alarm pipe, in
Between tracheae be connected to limit main chamber, so limiting main chamber when the intracavitary air pressure of unit distribution reduces (air leaks to outside power distribution cabinet)
Interior a part of gas can enter unit distribution chamber, and limit inner piston, limiting piston bar, limit body are together away from counterweight cylinder
The direction of body axis is mobile, when limiting that air pressure is less than or equal to 1.3 times of standard atmospheric pressures in main chamber, limit body vertical projection with
Counterweight cylindrical body vertical projection is without intersection, and limit body can not limit positive pressure clump weight at this time, and positive pressure clump weight can
To be blown and (move up and down) by wind, to carry out tonifying Qi to unit distribution chamber.
During carrying out tonifying Qi to unit distribution chamber, limit inner piston, limiting piston bar, limit body are together towards close
The direction of counterweight cylinder axis is mobile, a certain moment (when the intracavitary air pressure of unit distribution is greater than 1.3 times of standard atmospheric pressures), limit
Body is contacted again counterweight bottom cylindrical face, and limit body vertical projection and counterweight cylindrical body vertical projection have intersection at this time, can
Stop tonifying Qi, avoids positive pressure mechanism excessive exercise, can effectively extend the relative usage service life of positive pressure mechanism.It should be pointed out that
When limit body is towards close to the movement of the direction of counterweight cylinder axis, since counterweight cylindrical body is also moving up and down, it is also possible to go out
The case where existing limit body first touches counterweight cylindrical sidewall, but, the frictional force between limit body and counterweight cylindrical body is not
Counterweight cylindrical body can be prevented to continue to move up and down, when counterweight cylinder is moved up to after being higher than limit body, limit body be will continue to towards leaning on
The direction of nearly counterweight cylinder axis is mobile and reaches below counterweight cylindrical body, then, after counterweight cylindrical body is stablized, Jiu Huibao
Hold " limit body vertical projection and counterweight cylindrical body vertical projection have intersection " this state.
And multiple position-limit mechanisms are set, it is the meaningless work in order to avoid positive pressure mechanism, is explained as follows: each unit distribution
The instantaneous state of intracavitary gas flowing is different, and when make-up gas, and each unit distribution chamber obtains successive time of gas also not
Together, it is identical to result in each unit distribution intracavitary air pressure not instead of moment, can constantly change, in addition, alarm pipe category
It being detected in single-point, detection is the instantaneous air pressure managed with unit distribution chamber communicating position of alarming, so, it many times, may
Sometime, (air pressure deficiency refers to the alarming value lower than setting, the alarm set in this case to air pressure deficiency at some alarm pipe
Value is equal to previously described M, i.e. 1.3 times of standard atmospheric pressures), it will lead to its corresponding position-limit mechanism limit failure, and it is practical
On, for no other reason than that the factors such as gas flowing, air pressure is in the sometime slightly below alarming value of setting at the alarm pipe, at this time
Interior of the cabinet air pressure is still higher than cabinet body external pressure, so after internal gas flow is relatively stable (or the gas of supplement is flow to
Behind position), air pressure can be higher than the alarming value of setting at once at this.If only one position-limit mechanism at this time, then after limit failure, just
Press mechanism will meaningless work, and be provided with multiple position-limit mechanisms if, the above problem would not occur.And work as each position-limit mechanism
After limit failure, illustrates that certain power distribution cabinet air pressure inside has been lower than the alarming value of setting, carry out tonifying Qi at this time, be then rationally to have
Effect.
The cylinder cabinet axis vertical, alarm pipe is coaxially arranged with cylinder cabinet, and blowdown pipe is in the one of interior of the cabinet
The unit distribution that end is located at the top is intracavitary.Further include several perpendicular guide rods 24 being fixed on outdoor ground, positive pressure clump weight with
Perpendicular guide rod is slidably connected.Perpendicular guide rod can assist slide-and-guide, improve structural stability.
Claims (7)
1. a kind of power distribution cabinet, characterized in that including being set to indoor cylinder cabinet and set on outdoor positive pressure mechanism；
The cylinder cabinet includes cabinet body, the cabinet door that can be connected and fixed with cabinet body, the elastic sealing strip in cabinet door and several
Set on the intracorporal diaphragm plate of cabinet, diaphragm plate is equipped with several partition stomatas, and each diaphragm plate is from top to bottom sequentially arranged, at the top of cabinet body
Unit distribution chamber is formed between the diaphragm plate of the top, forms unit distribution chamber, bottom of cabinet bulk between two neighboring diaphragm plate
Unit distribution chamber is formed between the diaphragm plate of bottom, when cabinet door is connected and fixed with cabinet body, cabinet door is closed, cabinet body and cabinet door
Between gap sealed by elastic sealing strip, when cabinet door open when, all unit distribution chambers are connected to the cabinet body external world；
The positive pressure mechanism includes positive pressure clump weight and positive pressure cylinder body, and positive pressure clump weight includes counterweight cone, counterweight cone
Bottom surface be in below vertex, be equipped with the positive pressure inner piston that cooperation is slidingly sealed with positive pressure cylinder body in positive pressure cylinder body, it is living in positive pressure
It is vertical to fill in glide direction, the positive pressure pair chamber that positive pressure cylinder interior is separated into positive pressure main chamber and is communicated with the atmosphere by positive pressure inner piston,
Positive pressure inner piston is equipped with the positive pressure piston rod across positive pressure pair chamber, and positive pressure piston rod connects positive pressure clump weight, and positive pressure pair is intracavitary
Equipped with positive pressing spring, positive pressure spring one end connects positive pressure inner piston, and the positive pressing spring other end connects positive pressure cylinder body, positive pressure counterweight
Block, positive pressure pair chamber and positive pressure main chamber are from top to bottom sequentially arranged；
It further include blowdown pipe, blowdown pipe one end is connected to positive pressure main chamber, and the blowdown pipe other end is in interior of the cabinet, and blowdown pipe is equipped with
Tonifying Qi check valve, positive pressure cylinder body are equipped with the air intake duct being connected to positive pressure main chamber, and air intake duct is equipped with breather cheek valve, tonifying Qi list
It can be by positive pressure main chamber by direction through tonifying Qi check valve to interior of the cabinet to valve, breather cheek valve can be by atmosphere by direction
Through breather cheek valve to positive pressure main chamber.
2. a kind of power distribution cabinet according to claim 1, characterized in that further include rain shade, rain shade includes being in positive pressure
Refractory slab and several canopy bars for being used to support refractory slab above mechanism, refractory slab cover positive pressure mechanism and air intake duct, the connection of canopy bar upper end
Refractory slab, canopy bar lower end are fixed with outdoor ground, and the apex of counterweight cone is equipped with the elastic buffer ball for contacting refractory slab.
3. a kind of power distribution cabinet according to claim 2, characterized in that the air intake duct includes inside tube body and drying tube,
Inside tube body one end is connected to positive pressure main chamber, and the inside tube body other end is equipped with external thread section, and drying tube includes outside tube body, fixation
The dry packet of the intracorporal moisture absorption and the internal thread segment set on outside tube body one end are managed on the outside, and internal thread segment and external thread section cooperation connect
It connects, breather cheek valve is arranged on inside tube body.
4. a kind of power distribution cabinet according to claim 1 or 2 or 3, characterized in that the positive pressure clump weight further includes vertical cloth
The counterweight cylindrical body set, counterweight cone bottom surface are fixed with counterweight cylindrical body top surface, and positive pressure piston rod connects counterweight cylindrical body bottom
Face, positive pressure piston rod and counterweight cylindrical body are coaxially arranged.
5. a kind of power distribution cabinet according to claim 4, characterized in that further include several position-limit mechanisms for being set to outdoor, limit
Position mechanism includes limit body and limit cylinder body, and unit distribution is intracavitary to be equipped with alarm pipe, and position-limit mechanism and alarm pipe correspond, In
In corresponding position-limit mechanism and alarm pipe: being equipped with the limit inner piston for being slidingly sealed cooperation with limit cylinder body, limit in limit cylinder body
Position inner piston glide direction is horizontal, and limit inner piston is separated into the limit for limiting main chamber and being communicated with the atmosphere for cylinder interior is limited
Secondary chamber, limit inner piston are equipped with across the limiting piston bar for limiting secondary chamber, and limiting piston bar, which is equipped with, matches bicircular for contacting
The limit body of cylinder bottom, limit is secondary intracavitary equipped with limit spring, and the connection of limit spring one end limits inner piston, and limit spring is another
One end connection limit cylinder body, limit main chamber, the secondary chamber of limit, limit body and counterweight cylinder axis are axial successively along limiting piston bar
Arrangement, pipe one end of alarming are connected to limit main chamber by middle gas tube, and P is standard atmospheric pressure, and limiting air pressure in main chamber is M, work as M
When greater than 1.3P, limit body vertical projection and counterweight cylindrical body vertical projection have intersection, when M is less than or equal to 1.3P,
Limit body vertical projection and counterweight cylindrical body vertical projection are without intersection.
6. a kind of power distribution cabinet according to claim 5, characterized in that the cylinder cabinet axis vertical, alarm Guan Yuyuan
Column cabinet is coaxially arranged, and the unit distribution that one end that blowdown pipe is in interior of the cabinet is located at the top is intracavitary.
7. a kind of power distribution cabinet according to claim 4, characterized in that further include it is several be fixed on outdoor ground perpendicular lead
Bar, positive pressure clump weight are slidably connected with perpendicular guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861650.8A CN110429486B (en) | 2019-09-12 | 2019-09-12 | Power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861650.8A CN110429486B (en) | 2019-09-12 | 2019-09-12 | Power distribution cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110429486A true CN110429486A (en) | 2019-11-08 |
| CN110429486B CN110429486B (en) | 2020-07-24 |
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ID=68418089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910861650.8A Active CN110429486B (en) | 2019-09-12 | 2019-09-12 | Power distribution cabinet |
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| Country | Link |
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| CN (1) | CN110429486B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116191238A (en) * | 2023-04-27 | 2023-05-30 | 无锡市新发智联节能有限公司 | Intelligent strong and weak electricity integrated control cabinet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201945895U (en) * | 2010-12-23 | 2011-08-24 | 南阳二机石油装备(集团)有限公司 | Air supplying device of positive pressure control cabinet |
| CN206713831U (en) * | 2017-05-25 | 2017-12-08 | 杭州欣卓科技有限公司 | Aquaculture tank |
| CN207490338U (en) * | 2017-10-25 | 2018-06-12 | 安徽东迪电气科技有限公司 | Metal-enclosed switchgear |
-
2019
- 2019-09-12 CN CN201910861650.8A patent/CN110429486B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201945895U (en) * | 2010-12-23 | 2011-08-24 | 南阳二机石油装备(集团)有限公司 | Air supplying device of positive pressure control cabinet |
| CN206713831U (en) * | 2017-05-25 | 2017-12-08 | 杭州欣卓科技有限公司 | Aquaculture tank |
| CN207490338U (en) * | 2017-10-25 | 2018-06-12 | 安徽东迪电气科技有限公司 | Metal-enclosed switchgear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116191238A (en) * | 2023-04-27 | 2023-05-30 | 无锡市新发智联节能有限公司 | Intelligent strong and weak electricity integrated control cabinet |
| CN116191238B (en) * | 2023-04-27 | 2023-06-30 | 无锡市新发智联节能有限公司 | Intelligent strong and weak electricity integrated control cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110429486B (en) | 2020-07-24 |
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Effective date of registration: 20200629 Address after: 325600 107 Xinghu Road, West elephant community, Le Cheng street, Yueqing, Wenzhou, Zhejiang Applicant after: ZHEJIANG PUCHENG ELECTRICAL Co.,Ltd. Address before: 310002 room 2, unit 4, building 36, Huaguang lane, Shangcheng District, Zhejiang, Hangzhou, 502 Applicant before: Chen Zhijun |
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Denomination of invention: A power distribution cabinet Effective date of registration: 20211112 Granted publication date: 20200724 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: ZHEJIANG PUCHENG ELECTRICAL CO.,LTD. Registration number: Y2021980012109 |
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