CN111934208B - Waterproof insulation safety type control cabinet for electrical equipment - Google Patents
Waterproof insulation safety type control cabinet for electrical equipment Download PDFInfo
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- CN111934208B CN111934208B CN202010646686.7A CN202010646686A CN111934208B CN 111934208 B CN111934208 B CN 111934208B CN 202010646686 A CN202010646686 A CN 202010646686A CN 111934208 B CN111934208 B CN 111934208B
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- door
- door leaf
- waterproof
- electrical equipment
- control cabinet
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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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
- C08L7/02—Latex
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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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
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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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
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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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention belongs to the technical field of electrical equipment, and particularly relates to a waterproof insulating high-strength safety control cabinet for electrical equipment. The waterproof insulation high-strength safety control cabinet for the electrical equipment comprises a cabinet body, a door leaf A and a door leaf B, wherein the door leaf A and the door leaf B are oppositely opened left and right, the door leaf B is hinged with the cabinet body, sliding grooves along the transverse direction are formed in the top and the bottom of the cabinet body on the rear side of the door leaf, and a door seam baffle plate is arranged between the sliding grooves; one side of the door gap baffle is connected with the inner wall of the cabinet body through an elastic part, the upper end and the lower end of the door gap baffle are connected with a pull rope, and the other end of the pull rope is connected with the upper end and the lower end of the inner side edge of the door leaf A; the top and the bottom of the door leaf A are provided with a steering pulley, the pull ropes on and under the door seam baffle sequentially pass through the steering pulley, and the door seam baffle can seal the door seam when closed and improve the structural strength of the cabinet door; thereby improving the weather resistance and the service life of the waterproof, insulating, high-strength and safe control cabinet for the power equipment.
Description
Technical Field
The invention belongs to the technical field of electrical equipment, and particularly relates to a waterproof, insulating and safe control cabinet for electrical equipment.
Background
electric power equipment control cabinet, as the name implies, is an electric cabinet for electric control. The power equipment control cabinet is divided into a traditional relay control cabinet and a PLC integrated control cabinet. The simple control is controlled by a relay, and the complex control is generally controlled by a PLC. The relay control cabinet is realized by adopting a hardware wiring mode, and the electrical control is realized by utilizing the combination of series connection and parallel connection of mechanical contacts of the relay, the hysteresis action of a delay relay and the like to form a control logic. The PLC comprehensive control cabinet has the protection functions of overload, short circuit, open-phase protection and the like. The device can be combined according to the size of an actual control gauge, so that not only can single-cabinet automatic control be realized, but also a distributed control system (DSC) can be formed by a plurality of cabinets through an industrial Ethernet or an industrial field bus network.
The cabinet door of the conventional power equipment control cabinet adopts a structural design of single-door opening, double-door opening or multiple-door opening according to the size of the cabinet body. The cabinet body of the waterproof, insulating and safe control cabinet for the electrical equipment with the side-by-side door has the following defects: 1. the sealing effect at the door gap of the cabinet door is poor, the performances of water prevention, rain prevention and splashing prevention are insufficient, and hidden dangers are brought to the safe operation of internal electric elements; 2. the structural strength of cabinet door department is comparatively weak, receives inward impact effect to act on, and the cabinet door is out of shape easily to cause inside electrical component's damage.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to design a waterproof insulating safe control cabinet for electrical equipment, which overcomes the defects in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a waterproof insulation safety control cabinet for electrical equipment comprises a cabinet body, an A door leaf and a B door leaf which are oppositely opened left and right, wherein the B door leaf is hinged with the cabinet body; the door seam baffle is connected with the inner wall of the cabinet body close to one side of the door leaf A through an elastic part, the upper end and the lower end of the door seam baffle are connected with a pull rope, and the other end of the pull rope is connected with the upper end and the lower end of the inner side edge of the door leaf A; the top and the bottom of the door leaf A are provided with a steering pulley, and the pull ropes on the door seam baffle sequentially pass through the steering pulley.
The turning pulleys comprise a first pulley positioned on the left side of the A door leaf and a second pulley positioned on the right side of the A door leaf, and the first pulley and the second pulley are fixedly connected with the inner wall of the cabinet body.
Preferably, when the elastic member is in a natural state, the door seam blocking plate is positioned at the door seam of the A door leaf and the B door leaf.
Preferably, the stay cord is an elastic cord, when the door a is completely opened, the door crack baffle is positioned on one side of the cabinet body close to the door a, and at the moment, the stay cord is in a maximum extension state within an elastic limit.
Preferably, the upper end and the lower end of the door gap baffle are provided with rollers which roll along the sliding groove.
Preferably, the waterproof, insulating and safe control cabinet for the electrical equipment is provided with a safety lock, and the lock tongue of the safety lock is in a hook shape and is positioned on the door leaf A and the door leaf B; the matching body of the lock tongue is positioned on the door crack baffle.
Preferably, the sliding groove and the door crack baffle are both made of steel.
Preferably, stay cord outside layer sets up the braided layer of metal wire, and crack baffle and A door leaf all ground connection.
Preferably, the bottom of the cabinet body is provided with a waterproof insulating layer, and the waterproof insulating layer comprises the following components in parts by mass: 80-90 parts of natural rubber, 45-60 parts of polystyrene-butadiene rubber, 15-25 parts of polyacrylamide grafted isoprene polymer rubber, 55-70 parts of reinforcing agent, 12-16 parts of silicone oil, 3-5 parts of zinc oxide, 2-4 parts of silane coupling agent, 1-3 parts of vulcanizing agent and 0.2-0.4 part of vulcanization accelerator.
Preferably, the preparation method of the polyacrylamide grafted isoprene polymer rubber comprises the following steps:
(1) adding 0.5mol of polyethylene oxide, 4mol of N, N-dimethylacrylamide and 0.4mol of dicumyl peroxide into a reaction kettle, filling nitrogen atmosphere into the reaction kettle for protection, heating to 93-96 ℃, and carrying out heat preservation reaction for 4.5-5h to obtain a polymer A;
(2) dissolving polyisoprene in 15% by mass in n-hexane to form a solution, adding 50wt% of white carbon black, 6.8wt% of nano zinc oxide, 2.3wt% of stearic acid and 4.5 wt% of gamma-methacryloxypropyl-trimethoxysilane into the solution, mixing, uniformly dispersing, injecting into a coagulator, heating and coagulating by adopting water vapor to obtain a mixture, and drying the mixture in vacuum to remove a solvent to obtain a polymer B;
(3) mixing the polymer A, the polymer B and the high-viscosity polyacrylamide according to the mass ratio of 1:45:13, adding the mixture into 25-30 times of volume of disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution, strongly stirring to uniformly disperse the mixture, then continuously adding 0.5-0.8wt% of ethyleneimine into the reactant, carrying out reflux reaction for 1.5-2.5h, filtering and drying the product to obtain the required polyacrylamide grafted isoprene polymer rubber.
The invention has the following beneficial effects:
the sliding groove and the door seam baffle plate with special structures are arranged inside the cabinet body of the electric appliance cabinet, the door seam baffle plate can slide along the sliding groove, and after the cabinet door of the waterproof, insulating and safe control cabinet for the electric power equipment is closed, the door seam baffle plate can move to the rear of the door seam of the waterproof, insulating and safe control cabinet for the electric power equipment, so that the sealing performance of the electric appliance cabinet is improved, the effects of preventing rain, dust and splashing are achieved, and the safety of internal elements of the electric appliance cabinet is improved; after the cabinet door of waterproof insulation safety type switch board for power equipment is opened, the crack baffle can move to power equipment with waterproof insulation safety type switch board one side, prevent to maintain the operation with electrician's operating personnel's maintenance and produce the influence.
On the other hand, crack baffle and spout can also play the effect that improves cabinet body structural strength after the cabinet door is closed. The conventional waterproof insulating safe control cabinet for side-by-side power equipment has the lowest strength at the door seam, is easy to deform under the impact action, and the door seam baffle can just enhance the impact resistance of the cabinet door; avoid the cabinet door to warp, maintain inside electrical components's steady operation.
In addition, the safety lock of the existing waterproof insulation safety control cabinet for the electrical equipment is arranged on the door leaves at two sides, and the safety lock is arranged between the door leaves and the door gap baffle plate.
The waterproof insulating layer arranged below the cabinet body uses natural rubber as base rubber, and is added with a proper amount of polystyrene-butadiene rubber as a modifier, so that the performance of the natural rubber is improved, the elastomer has good compatibility with natural rubber latex and high bonding strength, and the crosslinking effect between the natural rubber and other materials can be enhanced; after the waterproof and insulating material is added, the waterproof and insulating effect on improving the tensile strength, bending resistance flexibility and hardness of the natural rubber is better, and the waterproof and insulating performance of the cabinet body can be improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a waterproof, insulating and safe control cabinet for electrical equipment in the embodiment;
FIG. 2 is a schematic view of the installation of the door crack baffles, the sliding chutes and other structures in the embodiment;
FIG. 3 is a schematic diagram illustrating a detailed structure of the roller at the door seam damper end in the present embodiment;
labeled as: 1. a cabinet body; 2. a, a door leaf; 3. b, a door leaf; 4. a chute; 5. a door seam baffle; 20. a damping rotating shaft; 21. a latch bolt; 41. a first pulley; 42. a second pulley; 50. a roller; 51. pulling a rope; 52. an elastic member; 53. a mating body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Examples
As shown in fig. 1 and 2, a waterproof, insulating and safe control cabinet for electrical equipment comprises a cabinet body 1, an a door leaf 2 and a B door leaf 3 which are oppositely opened left and right, wherein the B door leaf 3 is hinged with the cabinet body 1, the a door leaf 2 is connected with the cabinet body 1 through a damping rotating shaft 20, the top and the bottom of the cabinet body 1 at the rear side of the door leaf are provided with transverse sliding grooves 4, and a door seam baffle 5 is arranged between the sliding grooves 4; the door gap baffle 5 is connected with the inner wall of the cabinet body 1 close to one side of the A door leaf 2 through an elastic part 52, the upper end and the lower end of the door gap baffle 5 are connected with a pull rope 51, and the other end of the pull rope 51 is connected with the upper end and the lower end of the inner side edge of the A door leaf 2; the top and the bottom of the door leaf A2 are provided with a steering pulley, and the pull ropes 51 on and under the door seam baffle 5 sequentially pass through the steering pulley.
When the elastic member 52 is in a natural state, the door seam blocking plate 5 is located at the door seam of the a door leaf 2 and the B door leaf 3. The diverting pulleys comprise a first pulley 41 positioned on the left side of the A door leaf 2 and a second pulley 42 positioned on the right side of the A door leaf 2, and the first pulley 41 and the second pulley 42 are fixedly connected with the inner wall of the cabinet body 1.
In this embodiment, after operating personnel opened the cabinet door of regulator cubicle, stay cord 51 tensioning, because stay cord 51's pulling force effect, crack baffle 5 can be pulled the one side of power equipment with waterproof insulating safe type switch board, and elastic component 52 is compressed this moment, and damping pivot 20 can avoid A door leaf 2 self-closing through the angle that opens and shuts of the fixed A door leaf 2 of damping effect between A door leaf 2 and the cabinet body 1.
When the cabinet door is closed by an operator, the pull rope 51 is loosened, and due to the action of the elastic piece 52, the door gap baffle 5 returns to the middle of the cabinet door again and is positioned at the back of the door gap of the cabinet door to play a good sealing role in the door gap, so that the waterproof, insulating and safe control cabinet for the electric power equipment has better waterproof, dustproof and anti-break gap effects. And enhances the strength of the cabinet door.
The pulling rope 51 is an elastic rope, when the a door leaf 2 is completely opened, the door crack baffle 5 is positioned at one side of the cabinet body 1 close to the a door leaf 2, and at the moment, the pulling rope 51 is in a maximum extension state within the elastic limit.
Because the cabinet door angle of opening and shutting when changing, the stay cord 51 can take place the problem of pine and take off because of the change of distance, consequently adopts and to take elastic stay cord 51 to solve this problem for stay cord 51 is in the tensioning state constantly.
As shown in fig. 3, rollers 50 for rolling along the slide groove 4 are provided at upper and lower ends of the door crack fence 5.
The roller 50 can make the movement of the door crack stop 5 along the sliding groove 4 smoother.
The waterproof insulation safety type control cabinet for the electrical equipment is provided with a safety lock, and a bolt 21 of the safety lock is in a hook shape and is positioned on the door leaf A2 and the door leaf B3; the mating body 53 of the locking tongue 21 is located on the door crack stop 5.
The locking effect of this safety lock is better, can be so that cabinet door and 5 zonulae occludens of crack baffle improve the structural strength of cabinet door. In addition, this type safety lock both can open both sides door leaf simultaneously, also can only open B door leaf 3, has better practicality.
The sliding groove 4 and the door gap baffle 5 are both made of steel.
The outer layer of the pull rope 51 is provided with a metal wire braid layer, and the door crack baffle 5 and the A door leaf 2 are both grounded.
Use the metallic braid as the wire, with door crack baffle 5 and A door leaf 2 ground connection, can prevent that the shell from producing static, improve the electrical protection performance of waterproof insulating safe type switch board for power equipment.
The bottom of the cabinet body in this embodiment is provided with a waterproof insulating layer, which contains the following components in parts by mass: 80-90 parts of natural rubber, 45-60 parts of polystyrene-butadiene rubber, 15-25 parts of polyacrylamide grafted isoprene polymer rubber, 55-70 parts of reinforcing agent, 12-16 parts of silicone oil, 3-5 parts of zinc oxide, 2-4 parts of silane coupling agent, 1-3 parts of vulcanizing agent and 0.2-0.4 part of vulcanization accelerator.
The preparation method of the polyacrylamide grafted isoprene polymer rubber in the embodiment comprises the following steps:
(1) adding 0.5mol of polyethylene oxide, 4mol of N, N-dimethylacrylamide and 0.4mol of dicumyl peroxide into a reaction kettle, filling nitrogen atmosphere into the reaction kettle for protection, heating to 93-96 ℃, and carrying out heat preservation reaction for 4.5-5h to obtain a polymer A;
(2) dissolving polyisoprene in 15% by mass in n-hexane to form a solution, adding 50wt% of white carbon black, 6.8wt% of nano zinc oxide, 2.3wt% of stearic acid and 4.5 wt% of gamma-methacryloxypropyl-trimethoxysilane into the solution, mixing, uniformly dispersing, injecting into a coagulator, heating and coagulating by adopting water vapor to obtain a mixture, and drying the mixture in vacuum to remove a solvent to obtain a polymer B;
(3) mixing the polymer A, the polymer B and the high-viscosity polyacrylamide according to the mass ratio of 1:45:13, adding the mixture into 25-30 times of volume of disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution, strongly stirring to uniformly disperse the mixture, then continuously adding 0.5-0.8wt% of ethyleneimine into the reactant, carrying out reflux reaction for 1.5-2.5h, filtering and drying the product to obtain the required polyacrylamide grafted isoprene polymer rubber.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an electric power equipment is with waterproof insulating safe type switch board, includes the cabinet body and controls a door leaf, the B door leaf of run from opposite directions, and the B door leaf is articulated with the cabinet body, its characterized in that: the door leaf A is connected with the cabinet body through a damping rotating shaft, the top and the bottom of the cabinet body at the rear side of the door leaf are provided with transverse sliding grooves, and door seam baffles are arranged between the sliding grooves; the door seam baffle is connected with the inner wall of the cabinet body close to one side of the door leaf A through an elastic part, the upper end and the lower end of the door seam baffle are connected with a pull rope, and the other end of the pull rope is connected with the upper end and the lower end of the inner side edge of the door leaf A; the top and the bottom of the door leaf A are provided with a steering pulley, and the pull ropes on the door seam baffle sequentially pass through the steering pulley;
the cabinet body bottom is provided with a waterproof insulating layer, the waterproof insulating layer contains the following components by mass: 80-90 parts of natural rubber, 45-60 parts of polystyrene-butadiene rubber, 15-25 parts of polyacrylamide grafted isoprene polymer rubber, 55-70 parts of reinforcing agent, 12-16 parts of silicone oil, 3-5 parts of zinc oxide, 2-4 parts of silane coupling agent, 1-3 parts of vulcanizing agent and 0.2-0.4 part of vulcanization accelerator.
2. The waterproof, insulating and safe control cabinet for electrical equipment according to claim 1, characterized in that: the steering pulleys comprise a first pulley positioned on the left side of the door leaf A and a second pulley positioned on the right side of the door leaf A, and the first pulley and the second pulley are fixedly connected with the inner wall of the cabinet body.
3. The waterproof, insulating and safe control cabinet for electrical equipment according to claim 1, characterized in that: when the elastic piece is in a natural state, the door gap baffle is positioned at the door gap of the door leaf A and the door leaf B.
4. The waterproof, insulating and safe control cabinet for electrical equipment according to claim 1, characterized in that: the stay cord is the elasticity rope, and when A door leaf was opened completely, the crack baffle was located the cabinet body and is close to one side of A door leaf, and the stay cord is in the maximum extension state in the elasticity limit this moment.
5. The waterproof, insulating and safe control cabinet for electrical equipment according to claim 1, characterized in that: and the upper end and the lower end of the door gap baffle are provided with rolling wheels which are used for rolling along the sliding groove.
6. The waterproof, insulating and safe control cabinet for electrical equipment according to claim 1, characterized in that: the waterproof insulation safety type control cabinet for the electrical equipment is provided with a safety lock, and a lock tongue of the safety lock is in a hook shape and is positioned on the door leaf A and the door leaf B; the matching body of the lock tongue is positioned on the door crack baffle.
7. The waterproof, insulating and safe control cabinet for electrical equipment according to claim 1, characterized in that: the sliding groove and the door gap baffle are both made of steel.
8. The waterproof, insulating and safe control cabinet for electrical equipment according to claim 1, characterized in that: the stay cord outside layer sets up the metal wire weaving layer, and crack baffle and A door leaf are all ground connection.
9. The waterproof, insulating and safe control cabinet for electrical equipment according to claim 1, characterized in that: the preparation method of the polyacrylamide grafted isoprene polymer rubber comprises the following steps:
(1) adding 0.5mol of polyethylene oxide, 4mol of N, N-dimethylacrylamide and 0.4mol of dicumyl peroxide into a reaction kettle, filling nitrogen atmosphere into the reaction kettle for protection, heating to 93-96 ℃, and carrying out heat preservation reaction for 4.5-5h to obtain a polymer A;
(2) dissolving polyisoprene in 15% by mass in n-hexane to form a solution, adding 50wt% of white carbon black, 6.8wt% of nano zinc oxide, 2.3wt% of stearic acid and 4.5 wt% of gamma-methacryloxypropyl-trimethoxysilane into the solution, mixing, uniformly dispersing, injecting into a coagulator, heating and coagulating by adopting water vapor to obtain a mixture, and drying the mixture in vacuum to remove a solvent to obtain a polymer B;
(3) mixing the polymer A, the polymer B and the high-viscosity polyacrylamide according to the mass ratio of 1:45:13, adding the mixture into 25-30 times of volume of disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution, strongly stirring to uniformly disperse the mixture, then continuously adding 0.5-0.8wt% of ethyleneimine into the reactant, carrying out reflux reaction for 1.5-2.5h, filtering and drying the product to obtain the required polyacrylamide grafted isoprene polymer rubber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010646686.7A CN111934208B (en) | 2020-07-07 | 2020-07-07 | Waterproof insulation safety type control cabinet for electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010646686.7A CN111934208B (en) | 2020-07-07 | 2020-07-07 | Waterproof insulation safety type control cabinet for electrical equipment |
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| CN111934208B true CN111934208B (en) | 2022-01-28 |
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| CN116247533A (en) * | 2023-04-07 | 2023-06-09 | 三峡大学 | Electric power cabinet convenient to overhaul |
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