CN219760324U - Pressure relief mechanism with sensor - Google Patents

Abstract

The utility model discloses a pressure relief mechanism with a sensor, which comprises a cabinet body, a sensor fixing bracket, a sensor body, a pressure relief device, a pressure relief fixing bolt and a pressure relief screw, wherein the pressure relief device is used in combination with each other to play a role, the sensor body detects pressure and simultaneously performs power-off treatment on other electrified equipment in the cabinet when the pressure is relieved, so that secondary explosion injury caused by the electrified equipment in the cabinet during or after pressure relief is avoided, the pressure relief device can finish pressure relief, internal pressure can be discharged from one side of the pressure relief device through the cooperation of the pressure relief screw, the pressure relief fixing bolt and the pressure strip with the pressure relief device, and meanwhile, when an electric arc is generated, the internal pressure is rapidly increased, parts in a switch cabinet can not break the pressure relief device and splash out of the cabinet under the drive of high-pressure gas, and potential safety hazards are avoided.

Description

Pressure relief mechanism with sensor

Technical Field

The utility model relates to the field of pressure relief mechanisms, in particular to a pressure relief mechanism with a sensor.

Background

In the operation process of the switch cabinet, a primary circuit short circuit fault is caused by various reasons (such as short circuit, insulation aging, manual misoperation and the like), high-temperature and high-pressure gas is instantaneously generated under the short circuit current of tens of thousands of amperes, and if the high-temperature and high-pressure gas cannot be effectively released in a narrow cabinet body in a very short time, the switch cabinet is burst, the adjacent switch cabinets are damaged, and meanwhile, the personal safety is possibly damaged. Therefore, the switchgear must be designed with consideration for effective pressure relief.

The chinese patent publication No. CN205724465U discloses a pressure relief device and a switch cabinet using the pressure relief device, where the pressure relief device includes a box body fixed to the switch cabinet, and the box body has a pressure relief hole for communicating with a primary loop compartment of the switch cabinet and a pressure relief opening for communicating with the outside of the switch cabinet. The pressure relief device has more than two pressure relief holes, and each pressure relief hole is located on adjacent and/or opposite sides of the box. When the primary loop compartment of the switch cabinet fails, generated high-pressure gas enters the box body of the pressure relief device through the pressure relief holes and is guided out of the cabinet by the pressure relief opening of the box body, and as the pressure relief device is provided with the plurality of pressure relief holes, the same pressure relief channel can be provided for the plurality of primary loop compartments, and the pressure relief holes are arranged on adjacent and/or opposite surfaces, the structure is compact, the space is effectively saved, and the size of the cabinet body is correspondingly reduced.

In summary, the existing pressure release mechanism has a plurality of defects, which are summarized as follows:

(1) at present, the pressure relief device does not perform power-off treatment on other electrified equipment in the cabinet while relieving pressure, so that secondary damage is easily caused when the electric equipment in the cabinet is still in an electrified state after the pressure is mostly relieved at one moment;

(2) at present, when a plurality of pressure release mechanisms on the market are used for completing pressure release, the sand screen structure in the pressure release mechanisms is rapidly increased due to the reasons of material strength, structural strength and the like, when an electric arc is generated, the parts in the switch cabinet are extremely easy to break the screen under the drive of high-pressure gas, and great potential safety hazards exist when the parts are splashed out of the cabinet.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a pressure relief mechanism with a sensor, so as to solve the problems.

In order to achieve the above object, the present utility model is achieved by the following technical scheme.

The utility model provides a take relief mechanism of sensor, includes the cabinet body, sensor fixed bolster, sensor body, pressure relief device, pressure release fixing bolt, pressure release screw, the sensor fixed bolster is fixed on the cabinet body, the sensor body is connected with the sensor fixed bolster, pressure relief device both sides are fixed on the cabinet body through pressure release fixing bolt and pressure release screw respectively, and still are equipped with the layering between pressure release fixing bolt and the pressure release board, when pressure release device is accomplishing the pressure release, the cooperation of internal pressure accessible pressure release screw, pressure release fixing bolt, layering three and pressure release device for pressure can follow one side discharge of pressure release device, and simultaneously, when electric arc produced, the inside pressure sharply increases, spare part in the cubical switchboard also can not break pressure release device, splash outside the cabinet under the drive of high-pressure gas, has stopped the potential safety hazard.

Preferably, the sensor body is a pressure sensor, and when the pressure is released, the sensor body detects the pressure and simultaneously performs power-off treatment on other electrified equipment in the cabinet, so that secondary explosion injury caused by the electric equipment in the cabinet in the electrified state during or after pressure release is avoided.

Preferably, the monitoring end of the sensor body is provided with a through hole corresponding to the cabinet body.

Preferably, the front end of the sensor body is provided with threads.

Preferably, the sensor body is arranged oppositely through an upper fixing nut and a lower fixing nut, and the head of the sensor body is fixed on the sensor fixing bracket.

Preferably, one side of the fixing nut is also provided with an elastic washer.

Preferably, the pressure release screw is a plastic screw which is easy to break.

Preferably, the thickness of the pressing strip is greater than 2mm.

Preferably, the pressure relief fixing bolt is an iron bolt.

Preferably, the pressure relief device is internally provided with a screen plate, and is a galvanized steel plate, and the protection grade is IP4X.

Compared with the prior art, the utility model discloses a pressure relief mechanism with a sensor, which comprises a cabinet body, a sensor fixing bracket, a sensor body, a pressure relief device, a pressure relief fixing bolt and a pressure relief screw, wherein the six are combined with each other to play a role,

(1) at present, the pressure release device releases pressure, the sensor body detects pressure and simultaneously performs power-off treatment on other electrified equipment in the cabinet, so that secondary explosion injury caused by the electrified equipment in the cabinet during or after pressure release is avoided;

(2) when the pressure relief device is used for relieving pressure, the internal pressure can be discharged from one side of the pressure relief device through the cooperation of the pressure relief screw, the pressure relief fixing bolt and the pressing strip and the pressure relief device, and meanwhile, when an electric arc is generated, the internal pressure is rapidly increased, and parts in the switch cabinet cannot burst through the pressure relief device and splash out of the switch cabinet under the driving of high-pressure gas, so that potential safety hazards are avoided.

Drawings

FIG. 1 is a schematic diagram of a pressure relief mechanism with a sensor according to the present utility model;

FIG. 2 is a schematic diagram showing structural connection between a sensor body and a sensor fixing bracket according to the present utility model;

FIG. 3 is a schematic diagram illustrating the operation of the sensor body of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

The utility model provides a take pressure release mechanism of sensor, includes cabinet body 100, sensor fixed bolster 1, sensor body 2, pressure relief device 3, pressure release fixing bolt 4, pressure release screw 5, sensor fixed bolster 1 is fixed on cabinet body 100, sensor body 2 is connected with sensor fixed bolster 1, pressure release device 3 both sides are fixed on cabinet body 100 through pressure release fixing bolt 4 and pressure release screw 5 respectively, and still are equipped with layering 6 between pressure release fixing bolt 4 and the pressure relief device 3, sensor body 2 is pressure sensor, the monitoring end of sensor body 2 is equipped with the through-hole with cabinet body 100 correspondence, the front end of sensor body 2 is equipped with the screw, sensor body 2 is through upper and lower two fixation nuts 21 relative setting, fixes sensor body 2's head on sensor fixed bolster 1, one of them one side of fixation nut 21 still is equipped with elastic washer 22, pressure release screw 5 is the plastic screw of easy fracture, can take place after receiving external pressure, layering 6 thickness is greater than 2mm, 4 are equipped with the otter board for the pressure release device.

Working principle: the inside trouble that breaks down of cabinet body 100 leads to the internal pressure of cabinet body 100 and temperature rise sharply, and pressure relief device 3 atress breaks through pressure with pressure release screw 5, and pressure relief device 3 is opened from the pressure release screw 5 department of disconnection, release internal pressure, and pressure relief device 3 falls back automatically under the action of gravity again after the pressure release, and the opposite side of whole open process pressure relief device 3 is all fixed by thickened layering 6 and pressure release fixing bolt 4, prevents whole or inside spare part to pop out.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a take pressure release mechanism of sensor which characterized in that: including the cabinet body (100), sensor fixed bolster (1), sensor body (2), pressure release device (3), pressure release fixing bolt (4), pressure release screw (5), sensor fixed bolster (1) are fixed on the cabinet body (100), sensor body (2) are connected with sensor fixed bolster (1), pressure release device (3) both sides are fixed on the cabinet body (100) through pressure release fixing bolt (4) and pressure release screw (5) respectively, and still are equipped with layering (6) between pressure release fixing bolt (4) and pressure release device (3).

2. The sensored pressure relief mechanism of claim 1, wherein: the sensor body (2) is a pressure sensor.

3. The sensored pressure relief mechanism of claim 2, wherein: and a through hole is formed at the monitoring end of the sensor body (2) corresponding to the cabinet body (100).

4. A pressure relief mechanism with sensor according to claim 3, wherein: the front end of the sensor body (2) is provided with threads.

5. The sensored pressure relief mechanism of claim 4, wherein: the sensor body (2) is oppositely arranged through an upper fixing nut and a lower fixing nut (21), and the head of the sensor body (2) is fixed on the sensor fixing support (1).

6. The sensored pressure relief mechanism of claim 5, wherein: one side of the fixed nut (21) is also provided with an elastic washer (22).

7. The sensored pressure relief mechanism of claim 1, wherein: the pressure relief screw (5) is a plastic screw which is easy to break.

8. The sensored pressure relief mechanism of claim 1, wherein: the thickness of the pressing strip (6) is more than 2mm.

9. The sensored pressure relief mechanism of claim 1, wherein: the pressure relief fixing bolt (4) is an iron bolt.

10. The sensored pressure relief mechanism of claim 1, wherein: the pressure relief device (3) is internally provided with a screen plate.