CN211046228U - Self-pressure-relief explosion-proof soft starting cabinet body - Google Patents
Self-pressure-relief explosion-proof soft starting cabinet body Download PDFInfo
- Publication number
- CN211046228U CN211046228U CN201921110115.0U CN201921110115U CN211046228U CN 211046228 U CN211046228 U CN 211046228U CN 201921110115 U CN201921110115 U CN 201921110115U CN 211046228 U CN211046228 U CN 211046228U
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- compartment
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- cabinet
- cabinet body
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- 239000007858 starting material Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000005192 partition Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model belongs to switch soft start cabinet field specifically discloses a be suitable for from explosion-proof soft start cabinet body of pressure release, including cabinet roof pressure relief device and the cabinet body. The top plate of the cabinet is provided with a pressure relief device consisting of a pressure relief valve and a flow guide cover. A pressure discharge port which is positioned at the rear end part of the air guide sleeve and has an opening positioned at the bottom end is formed between the air guide sleeve and the top end of the cabinet body. The pressure release valve is positioned in the air guide sleeve, is assembled on the top plate of the cabinet and is suitable for releasing pressure of the cabinet body. The interior of the cabinet body is divided into a bus compartment, a soft starting chamber, a pressure relief channel chamber, a cable compartment, a breaker compartment and a control compartment by a metal partition. The bus compartment is located directly above the front side of the cable compartment, and the control compartment is located directly above the front side of the breaker compartment. The soft starter chamber, the cable compartment, the bus compartment and the breaker compartment are sequentially arranged at the top end of the cabinet body from back to front. The pressure relief channel chambers are positioned at the left side and the right side of the cabinet body. The special pressure relief channel chambers for the soft starter are arranged on the two sides of the cabinet body, when an arcing accident occurs in the soft start, high-temperature and high-pressure gas is discharged to the rear part of the switch cabinet through the pressure relief channel, the pressure relief valve, the flow guide cover and the pressure discharge port, and the safety of peripheral electric facilities and the safety of maintenance personnel are favorably ensured.
Description
Technical Field
The invention relates to a soft starting cabinet body, in particular to a self-pressure-relief explosion-proof soft starting cabinet body, and belongs to the field of power equipment.
Background
The soft starting cabinet is widely applied to industries such as petroleum, chemical industry, metallurgy, textile, water conservancy and the like, and is used for power transmission, power distribution and electric energy conversion. When the soft starting cabinet is used, due to reasons of electrical insulation aging, misoperation, foreign matter entering of mice and the like, overvoltage and the like, the soft starting cabinet can be failed to cause arcing accidents, the voltage of the soft starting cabinet is high, the arcing current is large, the arcing releases huge energy in a short time, high-temperature and high-pressure gas is formed in the soft starting cabinet, and accordingly the cabinet body of the soft starting cabinet bursts.
In order to solve the technical problems, the original scheme is as follows: the pressure relief cover plate is arranged on the pressure relief opening of the soft starting cabinet, one side edge of the pressure relief cover plate is fixed with one side edge of the pressure relief opening by adopting a metal bolt, the other side edge of the pressure relief cover plate is fixed with the other side edge of the pressure relief opening by adopting a plastic bolt, and the pressure relief cover plate is provided with slotted holes which are arranged on the one side edge in a straight line and are suitable for bending of the pressure relief cover plate, so that the pressure relief cover plate is bent along the slotted holes when the soft starting cabinet relieves the.
On one hand, the original scheme causes that the pressure relief cover plate is not beneficial to reuse, and the pressure relief cover plate is also not beneficial to restore to the original state in situ after being bent, so that the maintenance is difficult; on the other hand, high-temperature and high-pressure gas in the cabinet is directly discharged to the outside of the cabinet body, so that a fire disaster is easily caused, the safety of peripheral electric power facilities is affected, and the life safety of field maintenance personnel is threatened, such as being burnt and even being shocked.
Disclosure of Invention
The invention mainly aims to provide a self-pressure-relief explosion-proof soft starting cabinet body, which solves the technical problems that the existing pressure relief device is difficult to reuse and the safety of peripheral electric facilities and maintenance personnel is endangered during pressure relief.
In order to achieve the above purpose, the invention provides a self-pressure-relief explosion-proof soft-start cabinet body, which comprises various compartments formed by a cabinet body framework structure and a pressure relief device arranged on a cabinet top plate. The cabinet body is internally provided with a bus compartment, a cable compartment, a soft starter compartment, a breaker compartment, a control compartment and a pressure relief channel chamber, wherein the bus compartment and the cable compartment are arranged at the rear half side of the cabinet body, and the cable compartment is positioned below the bus compartment; the soft starter compartment, the breaker compartment and the control compartment are arranged on the front half side of the cabinet body; the control compartment is arranged at the front upper part, and the circuit breaker compartment and the soft starter compartment are arranged below the control compartment in sequence; the pressure relief channel chambers are positioned at two sides of the cabinet body and are directly communicated with the soft starter compartment, and high-pressure gas can prop up the movable plate to be directly discharged upwards when the soft starter fails; the pressure relief device automatically controls the pressure relief valve through the sensor and can be repeatedly used.
The top plate of the cabinet is provided with a pressure relief device, and the pressure relief device comprises an air guide sleeve, and a front pressure relief valve plate and a rear pressure relief valve plate which are arranged in the air guide sleeve; the air guide sleeve is a cavity with an opening at the bottom end, which is formed by a top plate and a side plate, the opening at the bottom end of the air guide sleeve covers and is fixed at the top end part of the cabinet body, and a pressure discharge opening which is positioned at the rear end part of the air guide sleeve and is provided with an opening at the bottom end is formed between the air guide sleeve and the cabinet body; the front end pressure relief valve plate and the rear end pressure relief valve plate are arranged on the cabinet top plate, and the pressure relief valve plate is arranged at a pressure relief opening on the cabinet top plate; the valve plate covers the pressure relief opening, the front pressure relief valve plate is positioned at the front pressure relief opening, and the rear pressure relief valve plate is positioned at the rear pressure relief opening; the guide cover and the cabinet top are assembled and fixed through a hinge, the rear end of the valve plate is movably fixed with the cabinet top plate positioned at the pressure relief opening through a pressure relief control valve locking fastener, the pressure relief control valve comprises a locking hook part fixed with the valve plate and a lock body part fixed on the cabinet top plate, and the hook part of the locking hook part is clamped and fixed with a lock pin of the lock body part.
The pressure relief device comprises a flow guide cover and a pressure relief valve arranged in the flow guide cover. The air guide sleeve is a cavity with an opening at the bottom end, the cavity is composed of a top plate and a side plate, the opening at the bottom end of the air guide sleeve covers the top of the cabinet body and is fixed, and a pressure discharge opening which is positioned at the rear end part of the air guide sleeve and is provided with an opening at the bottom end is formed between the air guide sleeve and the cabinet body. The pressure relief valve plate is arranged at a pressure relief opening on the cabinet top plate. The valve plate covers and closes on the pressure release mouth, and the preceding tip of valve plate is fixed with the cabinet roof that is located the pressure release mouth front end through the activity of pressure release control valve, and the rear end portion of valve plate is fixed with the cabinet roof that is located the pressure release mouth rear end activity through the pressure release control valve, and the pressure release control valve senses high temperature high pressure trip and pops open in order to implement the pressure release automatically. The temperature sensor and the pressure sensor are arranged in the pressure relief control valve lock body, the sensor penetrates through the pressure relief valve plate to detect the temperature and the pressure in the cabinet, the pressure relief control valve lock pin automatically pops up after the temperature and the pressure in the cabinet reach set values, and the lock hook pops up from the lock hole.
When the soft starting cabinet breaks down to induce arcing accidents, the arcing releases huge energy in a short time, so that high-temperature and high-pressure gas is formed in the soft starting cabinet. The high-pressure gas acts on a valve plate of the pressure release valve, the upward thrust is generated, the thrust is far greater than the gravity of the valve plate, the unlocking of the locking pressure release control valve is promoted, namely, a locking hook part and a lock body part are separated, the valve plate overturns around a hinge, the rear side of the valve plate upwards overturns and is far away from a pressure release opening, the high-temperature high-pressure gas is discharged out of a cabinet through the pressure release opening of the pressure release valve, flows into a flow guide cover and is discharged through a pressure discharge opening, located on the rear side of the soft starting cabinet, of the flow guide cover, the discharged high-temperature gas is limited in the rear space of the soft starting cabinet, the safety of electric facilities located on the left side, the right side and the front side of the soft starting cabinet is favorably ensured, the maintenance personnel are.
Compared with the prior art, the invention has the beneficial effects that: when the soft starting cabinet has an arcing accident, high-temperature and high-pressure gas in a compartment of the soft starting cabinet in the soft starting cabinet is exhausted through the special pressure relief channel, the pressure relief valve, the air guide sleeve and the pressure exhaust port of the air guide sleeve, which is positioned on the rear side of the soft starting cabinet, and the exhausted high-temperature gas is positioned in the rear space of the soft starting cabinet, so that the safety of electric power facilities positioned on the left side, the right side and the front side of the soft starting cabinet is favorably ensured, the maintenance personnel are prevented from being burnt and even being electrically shocked, and the safety of the maintenance personnel is ensured.
Description of the drawings:
FIG. 1 is a schematic view of an embodiment of a self-venting explosion-proof soft start cabinet;
FIG. 2 is a schematic view of the front end pressure relief valve plate of the present invention;
FIG. 3 is a schematic view of the back end relief valve plate of the present invention;
FIG. 4 is a schematic view of the pressure relief control valve of the present invention;
the names corresponding to the reference numbers in the figures are: 1-cabinet body framework structure, 2-bus compartment, 3-outgoing cable compartment, 4-soft starter compartment, 5-breaker compartment, 6-control compartment, 7-dome, 8-front pressure relief valve plate, 9-rear pressure relief valve plate, 10-pressure relief control valve, 11-pressure discharge port, 12-pressure relief device, 13-locking hook part, 14-spring part, 15-locking body part, 16-locking pin and 17-pressure relief channel chamber.
The specific implementation mode is as follows:
the method for self-pressure-relief explosion-proof soft starting cabinet body comprises the following steps: as shown in fig. 1, the soft start cabinet is divided by a metal partition into a bus compartment (2), a cable compartment (3), a soft start compartment (4), a breaker compartment (5), a control compartment (6), and a pressure relief passage chamber (17). The cabinet body comprises a framework which plays a role in structural support; the front side of the framework is provided with a front cabinet door, and the front cabinet door comprises a control compartment cabinet door, a breaker compartment cabinet door and a soft starter compartment cabinet door; and a cable compartment cabinet door and a bus compartment cabinet door are arranged on the rear side of the framework. The bus compartment (2) and the cable compartment (3) are arranged at the rear side of the cabinet body, namely the rear side of the soft starting cabinet, and the soft starting compartment (4), the circuit breaker compartment (5) and the control compartment (6) are arranged at the front side of the cabinet body. The pressure relief channel chambers (17) are positioned at the left side and the right side of the cabinet body.
The framework of the cabinet body is a framework made of steel profiles, such as angle steel welding, plays a role in structural support and is a load-bearing foundation of the soft starting cabinet. The metal partition plates are arranged in the cabinet body to divide the internal space of the cabinet body and respectively form the compartments of the soft starting cabinet. The metal partition plates, the left metal plate, the right metal plate and the cabinet doors forming each compartment of the soft starting cabinet are all made of non-magnetic materials, such as aluminum, 200 stainless steel, 201 stainless steel and the like.
As shown in fig. 1, the top end of the cabinet body is provided with a pressure relief device (12), that is, the pressure relief device (12) is arranged on the top plate of the cabinet body, and the pressure relief device (12) is positioned above the top end of the cabinet body and is suitable for discharging high-temperature and high-pressure gas generated in the soft start cabinet to release the pressure in the switch cabinet, so that the switch cabinet is prevented from explosion accidents, and the safety is improved. The pressure relief device (12) comprises an air guide sleeve (7), a front end pressure relief valve plate (8) and a rear end pressure relief valve plate (9) as shown in figure 1, wherein one or more pressure relief control valves (10) are positioned in the air guide sleeve (7). The air guide sleeve (7) is a cavity which is formed by a top plate and a side plate and is provided with an opening at the bottom end, and is made of metal materials, such as steel plates. The rear end pressure relief valve plate (9) is arranged on the cabinet top plate, as shown in fig. 2, and a bus chamber pressure relief port is formed in the cabinet top plate and matched with the valve plate. The front end pressure relief valve plate (8) is arranged on the cabinet top plate, as shown in fig. 3, and a circuit breaker chamber pressure relief port is formed in the cabinet top plate and is matched with the valve plate. The front end of the valve plate is assembled and fixed through a hinge, and the valve plate can be overturned through a rotating shaft so as to discharge high-pressure gas in the switch cabinet; the rear end of the valve plate is movably fixed with a cabinet top plate positioned at a pressure relief opening through a pressure relief control valve (10) locking fastener, the pressure relief control valve (10) comprises a locking hook part (13) fixed with the valve plate and a lock body part (15) fixed on the cabinet top plate, and the hook part of the locking hook part (13) is clamped and fixed with a lock pin (16) of the lock body part (15). When the pressure in the soft starting cabinet is high, the pressure relief control valve senses that the high-temperature high-pressure lock hook automatically bounces open, the valve plate receives upward acting force generated by high-pressure gas in the cabinet, the acting force enables the lock hook part (13) to be separated from the lock catch, namely the lock hook part (13) and the lock body part (15) are unlocked, the valve plate of the pressure relief valve is opened, and the high-temperature high-pressure gas in the cabinet can be discharged to reduce the pressure in the cabinet.
High voltage and high current exist in the bus compartment (2), the cable compartment (3), the soft starter compartment (4) and the breaker compartment (5), and the possibility of arcing exists, so that the front end pressure relief valve plate (8) is arranged on a cabinet top plate at the tops of the soft starter compartment (4) and the breaker compartment (5), and the rear end pressure relief valve plate (9) is arranged on the cabinet top plate at the tops of the bus compartment (2) and the cable compartment (3). The top of the cabinet body is assembled to the air guide sleeve (7), the bottom end opening of the air guide sleeve (7) covers the top of the cabinet body and is fixed, and the air guide sleeve (7) covers the top ends of the bus compartment (2), the cable compartment (3) and the breaker compartment (5).
The guide cover (7) and the cabinet body are assembled and fixed to form a pressure discharge opening (11) located on the rear side of the cabinet body, the pressure discharge opening (11) is located at the bottom end of the rear end portion of the guide cover (7) and located behind the cabinet body and formed by matching an opening in the bottom end of the guide cover (7) with the top end of the cabinet body, namely the opening in the bottom end of the guide cover (7) is fixed with the cabinet top plate, and the pressure discharge opening (11) located in the rear end portion and located in the bottom end of the guide cover (7) and the cabinet top plate is formed between the guide cover (7) and the cabinet.
The pressure relief channel chamber (17) is located in the independent channels on two sides of the cabinet body, the upper end of each channel is communicated with the front-end pressure relief opening, the lower end of each channel is connected with the soft starter compartment, a movable plate is arranged at the joint, when the pressure of the soft starter compartment is high, the movable plate can be jacked open, and the pressure is automatically released to the front-end pressure relief opening.
The pressure relief control valve (10), as shown in fig. 4, includes a locking hook (13), a spring member (14), a locking body (15), and a lock pin (16). The bottom of the lock is a metal flat plate with a rectangular cross section, and the metal flat plate is horizontally arranged along the horizontal plane direction, namely along the direction of the top plate of the cabinet. The lock cylinder is of a cylindrical structure, and a cylindrical lock cylinder with a circular cross section is selected. The lock hook (13) is horizontally arranged, namely is parallel to the bottom of the lock, one end of the lock hook (13) is fixed with the lock body (15), and the other end of the lock hook is clamped with the hole of the pressure relief valve plate. The locking hook (13) is inserted into the valve plate and then the locking pin (16) is clamped and fixed, and the spring element (14) is suitable for generating elastic force for clamping the locking hook part (13) and the lock body part (15), which can be understood as locking force. The lock body part (15), the lock hook part (13), the spring part (14) and the lock pin (16) are sequentially fixed, and an integrally formed structure is preferably selected to ensure matching precision and generate moderate clamping force, so that accidental unlocking is not easy to occur between the lock hook part (13) and the lock body part (15).
Claims (6)
1. From explosion-proof soft start cabinet body of pressure release, characterized by: each compartment consisting of a cabinet body framework structure and a pressure relief device arranged on a cabinet top plate, wherein a bus compartment, a cable compartment, a soft starter compartment, a breaker compartment, a control compartment and a pressure relief channel chamber are arranged in the cabinet body, the bus compartment and the cable compartment are arranged at the rear half side of the cabinet body, and the cable compartment is positioned below the bus compartment; the soft starter compartment, the breaker compartment and the control compartment are arranged on the front half side of the cabinet body; the control compartment is arranged at the front upper part, and the circuit breaker compartment and the soft starter compartment are arranged below the control compartment in sequence; the pressure relief channel chambers are positioned at two sides of the cabinet body and are directly communicated with the soft starter compartment, and high-pressure gas can prop up the movable plate to be directly discharged upwards when the soft starter fails; the pressure relief device automatically controls the pressure relief valve through the sensor and can be repeatedly used.
2. The self-pressure-relief explosion-proof soft starting cabinet body as claimed in claim 1, wherein: the pressure relief device is arranged on the top plate and comprises a flow guide cover, and a front end pressure relief valve plate and a rear end pressure relief valve plate which are arranged in the flow guide cover; the air guide sleeve is a cavity with an opening at the bottom end, which is formed by a top plate and a side plate, the opening at the bottom end of the air guide sleeve covers and is fixed at the top end part of the cabinet body, and a pressure discharge opening which is positioned at the rear end part of the air guide sleeve and is provided with an opening at the bottom end is formed between the air guide sleeve and the cabinet body; the front end pressure relief valve plate and the rear end pressure relief valve plate are arranged on the cabinet top plate, and the pressure relief valve plate is arranged at a pressure relief opening on the cabinet top plate; the valve plate covers the pressure relief opening, the front pressure relief valve plate is positioned at the front pressure relief opening, and the rear pressure relief valve plate is positioned at the rear pressure relief opening; the air guide sleeve and the cabinet top are assembled and fixed through a hinge, and the front end and the rear end of the valve plate are movably fixed with a cabinet top plate positioned at a pressure relief opening through a pressure relief control valve locking fastener; the pressure relief control valve comprises a locking hook part fixed with the valve plate and a lock body part fixed on the top plate of the cabinet, and the hook part of the locking hook part is clamped and fixed with a lock pin of the lock body part; a temperature sensor and a pressure sensor are arranged in the pressure relief control valve lock body for sensing, and when the temperature and the pressure in the cabinet reach set values, the pressure relief control valve lock pin automatically pops up.
3. The self-pressure-relief explosion-proof soft starting cabinet body as claimed in claim 2, wherein: the lock hook part is inserted into the valve plate fixing hole to fix the valve plate, the lock hook is clamped by the spring part and the lock pin which generate locking force, and the lock body part, the lock hook part, the spring part and the lock pin are fixed in sequence.
4. The self-pressure-relief explosion-proof soft starting cabinet body as claimed in claim 2, wherein: the front end pressure relief valve plate is arranged on a cabinet top plate positioned at the top of the upper ends of the circuit breaker compartment and the pressure relief channel chamber, two pressure relief control valves are fixed at the rear ends of the front end pressure relief valve plate and fixed on the cabinet top plate and matched with the front end pressure relief valve plate in parallel, and the lock body part is clamped with a hole of the pressure relief valve plate.
5. The self-pressure-relief explosion-proof soft starting cabinet body as claimed in claim 2, wherein: the rear end pressure relief valve plate is arranged on a cabinet top plate positioned at the top of the bus compartment, two pressure relief control valves are fixed at the rear end of the rear end pressure relief valve plate respectively, and the pressure relief control valves are fixed on the cabinet top plate and are matched with the rear end pressure relief valve plate in parallel; the lock body part is clamped with the hole of the pressure relief valve plate.
6. The self-pressure-relief explosion-proof soft starting cabinet body as claimed in claim 1, wherein: the pressure relief channel chamber is located in the independent channels on two sides of the cabinet body, the upper end of each channel is communicated with the pressure relief port at the front end, the lower end of each channel is connected with the soft starter compartment, a movable plate is arranged at the joint, when the pressure of the soft starter compartment is high, the movable plate can be jacked open, and the pressure is automatically released to the pressure relief port at the front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921110115.0U CN211046228U (en) | 2019-07-16 | 2019-07-16 | Self-pressure-relief explosion-proof soft starting cabinet body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921110115.0U CN211046228U (en) | 2019-07-16 | 2019-07-16 | Self-pressure-relief explosion-proof soft starting cabinet body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211046228U true CN211046228U (en) | 2020-07-17 |
Family
ID=71534218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921110115.0U Expired - Fee Related CN211046228U (en) | 2019-07-16 | 2019-07-16 | Self-pressure-relief explosion-proof soft starting cabinet body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211046228U (en) |
-
2019
- 2019-07-16 CN CN201921110115.0U patent/CN211046228U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 |