CN201008249Y - Dust explosion-proof positive draft cabinet - Google Patents
Dust explosion-proof positive draft cabinet Download PDFInfo
- Publication number
- CN201008249Y CN201008249Y CNU2007200949816U CN200720094981U CN201008249Y CN 201008249 Y CN201008249 Y CN 201008249Y CN U2007200949816 U CNU2007200949816 U CN U2007200949816U CN 200720094981 U CN200720094981 U CN 200720094981U CN 201008249 Y CN201008249 Y CN 201008249Y
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- proof
- cupboard
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Abstract
The utility model relates to an explosion-proof positive pressure draft cupboard in dust environment, in particular to the field of positive draft style electric equipment in flammable environment, belonging to the field of electric equipment used in flammable environment. The utility model is characterized in that the structure of the cupboard includes blow-down equipment [1], a main cupboard[9] which is employed for installing the controlling system which is in need of the protection of explosion-proof and is arranged in a sub-cupboard[13] which is equipped with the positive pressure controlling system, wherein the main cupboard and the sub-cupboard are independent to each other and are respectively fixedly connected, the blow-down equipment arranged on the top of the main cupboard is connected with the main cupboard via weld, cable seal jointing[4], clamp and sleeve[8], a dust-proof and explosion-proof electric controlling case[14] is arranged in the sub-cupboard, a positive pressure protection unit and a power supply unit[34] are disposed in the dust-proof and explosion-proof electric controlling case which are connected with the main cupboard via line outlets and gas outlets. The utility model solves the problem of installing relative large control system in flammable dusty environment.
Description
Technical field
The utility model belongs to combustible dust environment electrical installation field, and particularly the combustible dust environment is used forced draft type electric equipment field.
Background technology
In the combustible dust environment, use the demand of measuring instrument system and electrical apparatus system more and more at present.Now, some combustible dust environment electrical installations of domestic production, be that simple dependence can solves explosion-proof problem, this electrical system that suitable electric component is few and caloric value is low, for than relatively large electrical system (electricity piece is many, power is big, caloric value high), only rely on the shell of good seal performance that electric equipment is carried out explosion-proof processing, its fail safe does not reach requirement, and feasibility is not high.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of international standard that meets is provided, and is rational in infrastructure, is convenient to the dust explosion protection forced draft cabinet of making and safeguarding.
The purpose of this utility model is achieved in that dust explosion protection forced draft cabinet, it is characterized in that: cabinet body structure comprises exhaust apparatus [1], be used to install the main cabinet [9] of the control system that needs explosive-proof protector, be used to install the secondary cabinet [13] of positive pressure control system, wherein, main cabinet and secondary cabinet cabinet are separate and be mutually permanently connected, exhaust apparatus places main cabinet top, and exhaust apparatus adopts welding, cable sealed joint [4] to be connected with main cabinet with cutting ferrule joint [8]; The secondary built-in dust explosion protection electric cabinet of cabinet [14], built-in main tank positive pressure protection of dust explosion protection electric cabinet and supply control unit [34], and be connected with main cabinet by line outlet, gas circuit outlet.
Described exhaust apparatus is made up of the ventilative cap [2] of anti-explosion fire-retardant, explosion-proof solenoid valve [3], cable sealed joint [4], pressure relief valve [5], the ventilative cap base [6] of anti-explosion fire-retardant, adjustable one-way throttle valve [7] and cutting ferrule joint [8].The ventilative cap of anti-explosion fire-retardant adopts bolt to be connected the intermediate cryptographic packing with its base.Pressure relief valve is installed in main cabinet top drilling place.The ventilative cap base hood of back-fire relief is in the pressure relief valve outside, and full weld is at main cabinet top.Explosion-proof solenoid valve one end is by cutting ferrule joint and copper pipe and main cabinet UNICOM, and the other end is connected by cutting ferrule joint and copper pipe and the anti-explosion fire-retardant cap whorl of base interface of breathing freely.Adjustable one-way throttle valve one end is by cutting ferrule joint and copper pipe and main cabinet UNICOM, and the other end is connected by cutting ferrule joint and copper pipe and the anti-explosion fire-retardant cap whorl of base interface of breathing freely.Ventilative cap of anti-explosion fire-retardant and base thereof are together to form a spatial transition, and all are discharged into spatial transition earlier by the gas of discharging in the main cabinet, are discharged into the hazardous area by the ventilative cap of anti-explosion fire-retardant afterwards, stop hot particle to be discharged.The notion of spatial transition takes the lead in proposing for my company.
Dust explosion protection electric cabinet case lid [24] in the described secondary cabinet is installed alarm for high voltage indicator light [25], low pressure alarming indicator light [26], low pressure shutoff alarm lamp [27] from left to right, and a debugging and normal operating conditions conversion knob [28] are installed in the indicator light bottom.
4 of circular holes are opened at explosion-proof electric cabinet casing [14] top in the described secondary cabinet, and two of hookup wire way outlets are installed two of gas circuit outlets, do encapsulation process and feed main cabinet on it.
Cable sealed joint [32], filtering pressure reducing valve [31], Pressure gauge [30], accurate voltage regulating valve [29] are installed in explosion-proof electric cabinet casing right side in the described secondary cabinet.
There is a fan in described secondary cabinet front with the door [15] that hinge is connected with secondary cabinet cabinet [13], on the panel on secondary cabinet cabinet right side, is screwed main cabinet internal pressure display list [16].
Compared with prior art, the beneficial effects of the utility model are: owing to taked split type main cabinet and secondary cabinet, the control system of customer requirement is installed in main cabinet, secondary cabinet is installed positive pressure-controlled and electric power system; Reduced the master control system installation and debugged unnecessary trouble, be convenient to more make and safeguard.Because product has increased the forced draft function, solved the problem of in the combustible dust environment, laying again than relatively large control system (electricity piece is many, power is big, caloric value high).
Description of drawings
Fig. 1 is a structural representation of the present utility model; Among the figure: the ventilative cap of 1 exhaust apparatus, 2 anti-explosion fire-retardants, 3 explosion-proof solenoid valves, 4 cable sealed joints, 5 pressure relief valves, the ventilative cap base of 6 anti-explosion fire-retardants, 7 adjustable one-way throttle valves, 8 cutting ferrule joints, 9 main cabinets, 10 briquettings, 11 hinges, 12 main cabinet cabinet doors, 13 secondary cabinets, 14 dust explosion protection electric cabinets, 15,16 main cabinet internal pressure display lists.
2-1 is the line outlet schematic diagram that the dust explosion protection electric cabinet is connected with main cabinet in the secondary cabinet among Fig. 2; Among the figure: 17 cables, 18 penetration pipes, 19 rubber gaskets, 9 main cabinets, 20 dust explosion protection electric cabinet casings, 21 locking nuts, 22 epoxide resins.
2-2 is the gas circuit outlet schematic diagram that the dust explosion protection electric cabinet is connected with main cabinet in the secondary cabinet among Fig. 2; Among the figure: 23 gas circuit tube connectors.9 main cabinets, 19 rubber gaskets, the anti-riot electric cabinet casing of 20 dust, 21 locking nuts.
3-1 is the front view of dust explosion protection electric cabinet in the secondary cabinet among Fig. 3; Among the figure: 20 dust explosion protection electric cabinet casings, 24 dust explosion protection electric cabinet case lids, 25 alarm for high voltage indicator lights, 26 low pressure alarming indicator lights, 27 low pressure are turn-offed alarm lamp, 28 debugging and normal operating conditions conversion knob.
3-2 is the right view of dust explosion protection electric cabinet in the secondary cabinet among Fig. 3; Among the figure: 29 accurate voltage regulating valves, 30 Pressure gauges, 31 filtering pressure reducing valves, 32 cable sealed joints.
3-3 is the vertical view of dust explosion protection electric cabinet in the secondary cabinet among Fig. 3; Among the figure: 33 dust explosion protection electric cabinets are by the dress journal stirrup.
Fig. 4 is control principle figure of the present utility model; Among the figure: 34 positive pressure protections and supply control unit (in the dust explosion protection electric cabinet); 3 explosion-proof solenoid valves (placing main cabinet top), PLLS are low pressure shutoff pressure difference switch; PAL is the low pressure alarming pressure difference switch; PAH is the alarm for high voltage pressure difference switch; R1 is a low pressure shutoff auxiliary relay; R2 is the low pressure alarming auxiliary relay; R3 is the alarm for high voltage relay; HL1 is the alarm for high voltage indicator light; HL2 is the low pressure alarming indicator light; HL3 is that low pressure is turn-offed alarm lamp; KM is main cabinet power supply contactor; Rt is the time relay; V1 uses electromagnetically operated valve for purging; V2 is the exhaust explosion-proof solenoid valve.
5-1 is the ventilative cap base front view (cutaway view) of anti-explosion fire-retardant among Fig. 5; Among the figure: the 6 anti-explosion fire-retardants cap of breathing freely.
5-2 is the ventilative cap base vertical view of anti-explosion fire-retardant among Fig. 5.Among the figure: 101: bolt.
Embodiment
With reference to the accompanying drawings, the utility model is further described:
Referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 4, accompanying drawing 5: cabinet body structure is exhaust apparatus 1, main cabinet 9, secondary cabinet 13, the control system that needs explosive-proof protector is installed in the main cabinet, in the secondary cabinet positive pressure control system is installed, main cabinet is connected with bolt with secondary cabinet cabinet, exhaust apparatus 1 places main cabinet top, and exhaust apparatus adopts welding, cable sealed joint 4 to be connected with main cabinet with cutting ferrule joint 8; The built-in dust explosion protection electric cabinet 14 of secondary cabinet, built-in main tank positive pressure protection and supply control unit 34, and be connected with main cabinet by line outlet, gas circuit outlet.The ventilative cap 2 of anti-explosion fire-retardant adopts bolt to be connected the intermediate cryptographic packing with its base 6.Pressure relief valve 5 is installed in main cabinet top drilling place.The ventilative cap base 6 of back-fire relief covers on the pressure relief valve outside, and full weld is at main cabinet top.Explosion-proof solenoid valve 3 one ends are by cutting ferrule joint and copper pipe and main cabinet UNICOM, and the other end is connected by cutting ferrule joint and copper pipe and the anti-explosion fire-retardant cap whorl of base interface of breathing freely.Adjustable one-way throttle valve 6 one ends are by cutting ferrule joint and copper pipe and main cabinet UNICOM, and the other end is connected by cutting ferrule joint and copper pipe and the anti-explosion fire-retardant cap whorl of base interface of breathing freely.Ventilative cap of anti-explosion fire-retardant and base thereof are together to form a spatial transition, and all are discharged into spatial transition earlier by the gas of discharging in the main cabinet, are discharged into the hazardous area by the ventilative cap of anti-explosion fire-retardant afterwards, stop hot particle to be discharged.There is a fan in secondary cabinet front with the door 15 that hinge is connected with secondary cabinet cabinet 13, on the panel on secondary cabinet cabinet right side, is screwed main cabinet internal pressure display list 16.
Referring to accompanying drawing 2-1: penetration pipe 18 passes main cabinet 9 bottoms and the corresponding perforate in dust explosion protection electric cabinet casing 20 tops, and carry out sealing with rubber gasket 19, and with locking nut 21 locking, cable 17 passes penetration pipe, and the space in the middle of cable and the penetration pipe is with epoxide resin 22 pourings.
Referring to accompanying drawing 2-2: gas circuit tube connector 23 passes main cabinet 9 bottoms and the corresponding perforate in dust explosion protection electric cabinet casing 20 tops, and carries out sealing with rubber gasket 19, and with locking nut 21 lockings, the gas circuit tube connector is threaded with cutting ferrule joint 8 up and down.
Referring to accompanying drawing 3: the dust explosion protection electric cabinet case lid 24 in the secondary cabinet is installed alarm for high voltage indicator light 25, low pressure alarming indicator light 26, low pressure from left to right and is turn-offed alarm lamp 27, and a debugging and normal operating conditions conversion knob 28 are installed in the indicator light bottom.4 of circular holes are opened at explosion-proof electric cabinet casing 20 tops, and two of hookup wire way outlets are installed two of gas circuit outlets, do encapsulation process and feed main cabinet on it.Cable sealed joint 32, filtering pressure reducing valve 31, Pressure gauge 30, accurate voltage regulating valve 29 are installed in explosion-proof electric cabinet casing right side.
That the utility model is used for is electric, there is combustible dust environmental hazard place in the automatic control field, and A 21.Cabinet adopts the steel plate welded case, and structure is last main cabinet, following secondary cabinet, and main cabinet top has exhaust apparatus.The control system of customer requirement is installed, as various detecting instruments, analysis meter, Displaying Meter, low-voltage electrical apparatus, frequency converter, soft initiator or computer control system in the main cabinet; Secondary cabinet is installed positive pressure control system and electric power system, to main cabinet purge, holding pressure control, and can report to the police and control the bound of pressure.Main cabinet and the sealing of dust explosion protection electric cabinet are reliable, and sealing gasket, degree of protection IP65 are installed in case lid and casing junction.
Claims (7)
1. dust explosion protection forced draft cabinet, it is characterized in that: cabinet body structure comprises exhaust apparatus [1], be used to install the main cabinet [9] of the control system that needs explosive-proof protector, be used to install the secondary cabinet [13] of positive pressure control system, wherein, main cabinet and secondary cabinet cabinet are separate and be mutually permanently connected, exhaust apparatus places main cabinet top, and exhaust apparatus is connected with main cabinet; The secondary built-in dust explosion protection electric cabinet of cabinet [14], built-in main tank positive pressure protection of dust explosion protection electric cabinet and supply control unit [34], and be connected with main cabinet by line outlet, gas circuit outlet.
2. dust explosion protection forced draft cabinet according to claim 1 is characterized in that: described exhaust apparatus is made up of the ventilative cap [2] of anti-explosion fire-retardant, explosion-proof solenoid valve [3], cable sealed joint [4], pressure relief valve [5], the ventilative cap base [6] of anti-explosion fire-retardant, adjustable one-way throttle valve [7] and threading cutting ferrule [8]; The ventilative cap of anti-explosion fire-retardant adopts bolt to be connected with its base, pressure relief valve is installed in main cabinet top drilling place, the ventilative cap base hood of back-fire relief is in the pressure relief valve outside, and full weld is at main cabinet top, explosion-proof solenoid valve one end is by cutting ferrule joint and copper pipe and main cabinet UNICOM, the other end is connected with the ventilative cap whorl of base interface of copper pipe and anti-explosion fire-retardant by the cutting ferrule joint, adjustable one-way throttle valve one end is by cutting ferrule joint and copper pipe and main cabinet UNICOM, and the other end is connected by cutting ferrule joint and copper pipe and the anti-explosion fire-retardant cap whorl of base interface of breathing freely.
3. dust explosion protection forced draft cabinet according to claim 1 is characterized in that: the ventilative cap of described anti-explosion fire-retardant and its base intermediate cryptographic packing.
4. dust explosion protection forced draft cabinet according to claim 1, it is characterized in that: the dust explosion protection electric cabinet case lid [20] in the described secondary cabinet is installed alarm for high voltage indicator light [21], low pressure alarming indicator light [22], low pressure shutoff alarm lamp [23] from left to right, and a debugging and normal operating conditions conversion knob [24] are installed in the indicator light bottom.
5. dust explosion protection forced draft cabinet according to claim 1, it is characterized in that: 4 of circular holes are opened at explosion-proof electric cabinet casing [19] top in the described secondary cabinet, [17] two of hookup wire way outlets are installed [18] two of gas circuit outlets, do encapsulation process and feed main cabinet on it.
6. dust explosion protection forced draft cabinet according to claim 1 is characterized in that: cable sealed joint [26], filtering pressure reducing valve [27], Pressure gauge [28], accurate voltage regulating valve [29] are installed in explosion-proof electric cabinet casing right side in the described secondary cabinet.
7. dust explosion protection forced draft cabinet according to claim 1 is characterized in that: there is Yishanmen [15] in described secondary cabinet front, on the panel on secondary cabinet cabinet right side, and fixing main cabinet internal pressure display list [16].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200949816U CN201008249Y (en) | 2007-01-17 | 2007-01-17 | Dust explosion-proof positive draft cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200949816U CN201008249Y (en) | 2007-01-17 | 2007-01-17 | Dust explosion-proof positive draft cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008249Y true CN201008249Y (en) | 2008-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200949816U Expired - Lifetime CN201008249Y (en) | 2007-01-17 | 2007-01-17 | Dust explosion-proof positive draft cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN201008249Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687453A (en) * | 2013-12-23 | 2014-03-26 | 南车资阳机车有限公司 | Positive pressure ventilation device for locomotive electrical cabinet |
| CN107645875A (en) * | 2017-09-11 | 2018-01-30 | 大庆宏富来电气设备制造有限公司 | Positive pressure anti-explosion controlling cubicle |
| CN108879370A (en) * | 2018-07-12 | 2018-11-23 | 江苏雄海智能电气有限公司 | It is a kind of with dust-proof, rainproof function split type high and low voltage switchgear |
| CN110234208A (en) * | 2019-04-03 | 2019-09-13 | 四川宝石机械石油钻头有限责任公司 | It impulses for roller negative pressure and handles sled system anti-explosion cabinet |
| CN113573531A (en) * | 2021-09-27 | 2021-10-29 | 江苏欧瑞防爆电气有限公司 | Exhaust device for explosion-proof positive pressure cabinet |
-
2007
- 2007-01-17 CN CNU2007200949816U patent/CN201008249Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687453A (en) * | 2013-12-23 | 2014-03-26 | 南车资阳机车有限公司 | Positive pressure ventilation device for locomotive electrical cabinet |
| CN103687453B (en) * | 2013-12-23 | 2016-03-16 | 中车资阳机车有限公司 | Positive pressure ventilation device for locomotive electrical cabinet |
| CN107645875A (en) * | 2017-09-11 | 2018-01-30 | 大庆宏富来电气设备制造有限公司 | Positive pressure anti-explosion controlling cubicle |
| CN108879370A (en) * | 2018-07-12 | 2018-11-23 | 江苏雄海智能电气有限公司 | It is a kind of with dust-proof, rainproof function split type high and low voltage switchgear |
| CN110234208A (en) * | 2019-04-03 | 2019-09-13 | 四川宝石机械石油钻头有限责任公司 | It impulses for roller negative pressure and handles sled system anti-explosion cabinet |
| CN113573531A (en) * | 2021-09-27 | 2021-10-29 | 江苏欧瑞防爆电气有限公司 | Exhaust device for explosion-proof positive pressure cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080116 |
|
| EXPY | Termination of patent right or utility model |