CN213100540U

CN213100540U - Selectable mode positive pressure explosion-proof cabinet door opening action flameout protection system

Info

Publication number: CN213100540U
Application number: CN202021949782.0U
Authority: CN
Inventors: 李峰
Original assignee: Shandong Kepuke Environmental Technology Co ltd
Current assignee: Shandong Kepuke Environmental Technology Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-05-04
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses an explosion-proof rack of optional mode malleation action flame-out protection system that opens door, including the explosion-proof rack body of malleation, the cabinet door is installed to the lateral wall of the explosion-proof rack body of malleation, the lateral wall of cabinet door runs through to rotate and is connected with the pivot, the outside end of pivot is fixed with the doorknob, the cover is equipped with torque spring in the pivot, the medial extremity of pivot is provided with stop gear, the inner wall of the explosion-proof rack body of malleation is fixed with the fixed block, be equipped with the device chamber in the fixed block, the device intracavity is equipped with limit switch mechanism, the PLC controller is installed to the inner wall of the explosion-proof rack body of malleation, analysis appearance, data acquisition appearance and nitrogen generator are installed to the lateral. The utility model discloses it is rational in infrastructure, it can be protected by automatic flame-out when the cabinet door is opened to can detect gas and atmospheric pressure when the cabinet body normally works.

Description

Selectable mode positive pressure explosion-proof cabinet door opening action flameout protection system

Technical Field

The utility model relates to an explosion-proof rack technical field of malleation especially relates to an optional mode malleation explosion-proof rack action flame-out protection system that opens door.

Background

The positive pressure explosion-proof cabinet is controlled by the automatic control system, protective gas is introduced, the pressure in the positive pressure cavity is higher than the pressure outside the positive pressure cavity, and a small safety environment of micro positive pressure is formed, so that combustible hazardous gas is prevented from entering the positive pressure cavity, and the safe operation of the built-in common instruments and electrical equipment elements is ensured.

But current explosion-proof rack of malleation does not set up the detection function to gas to when the cabinet door is opened, inside gas effluvium, the device is still in normal work, the danger of burning may appear.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the explosion-proof rack of optional mode malleation action flame-out protection system that opens door that proposes, it can be protected by automatic flame-out when the cabinet door is opened to can detect gas and atmospheric pressure when the cabinet body normally works.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an explosion-proof rack of optional mode malleation action flame-out protection system that opens door, includes the explosion-proof rack body of malleation, the cabinet door is installed to the lateral wall of the explosion-proof rack body of malleation, the lateral wall of cabinet door runs through to rotate and is connected with the pivot, the outside end of pivot is fixed with the doorknob, the cover is equipped with torque spring in the pivot, the medial extremity of pivot is provided with stop gear, the inner wall of the explosion-proof rack body of malleation is fixed with the fixed block, be equipped with the device chamber in the fixed block, the device intracavity is equipped with limit switch mechanism, the PLC controller is installed to the inner wall of the explosion-proof rack body of malleation, analysis appearance, data acquisition appearance and nitrogen generator.

Preferably, the limiting mechanism comprises a limiting plate fixed at the inner side end of the rotating shaft, and a limiting groove corresponding to the limiting plate is formed in the side wall of the fixing block.

Preferably, the limit switch mechanism comprises a supporting block arranged in the device cavity, a pressing block penetrating through the device cavity is fixed at the upper end of the supporting block, the bottom of the supporting block is elastically connected with the inner bottom of the device cavity through a plurality of springs, a first trigger piece is fixed at the bottom of the supporting block, a second trigger piece matched with the first trigger piece is arranged at the bottom of the device cavity, and the first trigger piece and the second trigger piece are electrically connected with the PLC.

Preferably, a mode conversion disc is arranged on a side wall of the cabinet door, and a pointer matched with the mode conversion disc is fixed on the outer wall of the rotating shaft.

Preferably, the analyzer is respectively connected with the nitrogen cylinder and the nitrogen generator through two electromagnetic valves, the electromagnetic valves are electrically connected with the PLC, and the nitrogen generator is electrically connected with the PLC through a relay.

Compared with the prior art, the utility model, its beneficial effect does:

1. through setting up stop gear and limit switch mechanism, can switch into the protection mode when the cabinet door is opened and carry out flame-out outage to protect inside components and parts.

2. When the cabinet door is closed, the interior normally works, the gas in the interior can be detected through the analyzer, and information is acquired through the data acquisition instrument.

Drawings

Fig. 1 is a schematic structural view of an optional-mode positive-pressure explosion-proof cabinet door opening action flameout protection system provided by the present invention;

fig. 2 is a schematic front view of an optional mode positive pressure explosion-proof cabinet door opening action flameout protection system provided by the present invention;

fig. 3 is an enlarged schematic view of a structure at a position a of the optional-mode positive-pressure explosion-proof cabinet door opening action flameout protection system provided by the present invention;

fig. 4 is a schematic connection relationship diagram of the door opening action flameout protection system of the selectable mode positive pressure explosion-proof cabinet of the present invention.

In the figure: the explosion-proof cabinet comprises a positive pressure explosion-proof cabinet body 1, a rotating shaft 2, a limiting plate 3, a limiting groove 4, a fixing block 5, a PLC controller 6, a nitrogen generator 7, an analyzer 8, a data acquisition instrument 9, a cabinet door 10, a door handle 11, a mode conversion disc 12, a pressing block 13, a pressing block 14, a device cavity 15, a spring 16, a first trigger piece 17 and a second trigger piece 18.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-4, an explosion-proof rack of optional mode malleation action flame-out protection system that opens a door, including explosion-proof rack of malleation body 1, cabinet door 10 is installed to the lateral wall of explosion-proof rack of malleation body 1, the lateral wall of cabinet door 10 runs through to rotate and is connected with pivot 2, the outside end of pivot 2 is fixed with door handle 11, the cover is equipped with torque spring on the pivot 2, the medial extremity of pivot 2 is provided with stop gear, stop gear is including fixing the limiting plate 3 at 2 medial extremities of pivot, the lateral wall of fixed block 5 is equipped with the spacing groove 4 that corresponds with limiting plate 3, when opening cabinet door 10, rotate door handle 11, drive pivot 2 and rotate, pivot 2 drives limiting plate 3 and rotates and leaves spacing groove 4, can open cabinet door 10.

The side wall of the cabinet door 10 is provided with a mode conversion disc 12, the outer wall of the rotating shaft 2 is fixed with a pointer matched with the mode conversion disc 12, the inner wall of the positive pressure explosion-proof cabinet body 1 is fixed with a fixed block 5, a device cavity 15 is arranged in the fixed block 5, a limit switch mechanism is arranged in the device cavity 15, the limit switch mechanism comprises a supporting block 14 arranged in the device cavity 15, the upper end of the supporting block 14 is fixed with a pressing block 13 penetrating through the device cavity 15, the bottom of the supporting block 14 is elastically connected with the inner bottom of the device cavity 15 through a plurality of springs 16, the bottom of the supporting block 14 is fixed with a first trigger piece 17, the bottom of the device cavity 15 is provided with a second trigger piece 18 matched with the first trigger piece 17, the first trigger piece 17 and the second trigger piece 18 are electrically connected with the PLC controller 6, when the cabinet door 10 is in a closed state, the limiting plate 3 rotates into the limiting groove 4 to drive the pressing block 13 to move downwards, and drive the first trigger piece 17 to be contacted with the second trigger piece 18 through the, thereby rendering the circuit conductive and in the inspection mode.

The inner wall of the positive-pressure explosion-proof cabinet body 1 is provided with the PLC 6, the side wall of the positive-pressure explosion-proof cabinet body 1 is provided with the analyzer 8, the data acquisition instrument 9 and the nitrogen generator 7, the analyzer 8 is respectively connected with the nitrogen cylinder and the nitrogen generator 7 through two electromagnetic valves, the electromagnetic valves are electrically connected with the PLC 6, and the nitrogen generator 7 is electrically connected with the PLC 6 through a relay.

The utility model discloses during the use, when opening cabinet door 10, rotate door handle 11, it rotates to drive pivot 2, pivot 2 drives limiting plate 3 and rotates and leaves spacing groove 4, can open cabinet door 10 this moment, break away from between 18 first trigger piece 17 and second trigger piece this moment, the circuit disconnection is flame-out, be in the protection mode, protect internal components and parts, when cabinet door 10 is in the closed condition, limiting plate 3 rotates to the spacing groove 4 in, it moves down to drive briquetting 13, drive first trigger piece 17 and the contact of second trigger piece 18 through supporting 14, thereby make the circuit switch on, be in the inspection mode, the solenoid valve is opened, nitrogen gas in the nitrogen gas of nitrogen generator 7 injection and the nitrogen gas bottle gets into analysis appearance 8 and analyzes, to inside gas density, data such as atmospheric pressure detect, and gather the collection through data acquisition instrument 9 in real time.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof rack of optional mode malleation action flame-out protection system that opens a door, includes malleation explosion-proof rack body (1), its characterized in that, cabinet door (10) are installed to the lateral wall of malleation explosion-proof rack body (1), the lateral wall of cabinet door (10) runs through to rotate and is connected with pivot (2), the outside end of pivot (2) is fixed with door handle (11), the cover is equipped with torque spring on pivot (2), the medial extremity of pivot (2) is provided with stop gear, the inner wall of malleation explosion-proof rack body (1) is fixed with fixed block (5), be equipped with device chamber (15) in fixed block (5), be equipped with stop switch mechanism in device chamber (15), PLC controller (6) are installed to the inner wall of malleation explosion-proof rack body (1), analysis appearance (8) are installed to the lateral wall of malleation explosion-proof rack body (1), A data acquisition instrument (9) and a nitrogen generator (7).

2. The selectable mode positive pressure explosion-proof cabinet door opening action flameout protection system according to claim 1, wherein the limiting mechanism comprises a limiting plate (3) fixed at the inner end of the rotating shaft (2), and a limiting groove (4) corresponding to the limiting plate (3) is formed in the side wall of the fixing block (5).

3. The selectable mode positive pressure explosion-proof cabinet door opening action flameout protection system according to claim 1, wherein the limit switch mechanism comprises a supporting block (14) arranged in the device cavity (15), a pressing block (13) penetrating through the device cavity (15) is fixed at the upper end of the supporting block (14), the bottom of the supporting block (14) is elastically connected with the inner bottom of the device cavity (15) through a plurality of springs (16), a first triggering sheet (17) is fixed at the bottom of the supporting block (14), a second triggering sheet (18) matched with the first triggering sheet (17) is arranged at the bottom of the device cavity (15), and the first triggering sheet (17) and the second triggering sheet (18) are electrically connected with the PLC (6).

4. The system for flameout protection during door opening action of an explosion-proof cabinet with selectable mode positive pressure according to claim 1, wherein a mode conversion disc (12) is disposed on a side wall of the cabinet door (10), and a pointer cooperating with the mode conversion disc (12) is fixed on an outer wall of the rotating shaft (2).

5. The selectable mode positive pressure explosion-proof cabinet door opening action flameout protection system according to claim 1, wherein the analyzer (8) is respectively connected with the nitrogen cylinder and the nitrogen generator (7) through two electromagnetic valves, the electromagnetic valves are electrically connected with the PLC controller (6), and the nitrogen generator (7) is electrically connected with the PLC controller (6) through a relay.