CN211318288U

CN211318288U - Explosion-proof type combustible gas detector shell

Info

Publication number: CN211318288U
Application number: CN201922130141.6U
Authority: CN
Inventors: 张爱民; 洛莎莎; 高丹丹
Original assignee: Dandong Built Gas Safety Technology Co ltd
Current assignee: Dandong Built Gas Safety Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-08-21
Anticipated expiration: 2029-12-03

Abstract

The utility model relates to an explosion-proof type combustible gas detector casing. The panel sets up groove lateral part and passes through threaded connection with the probe seat, and the probe seat center is equipped with the wire through-hole of connecting probe and panel, pours epoxy behind the connecting wire in the wire through-hole, and the probe seat below is equipped with in the probe protection casing, and the protection casing is made by foamed metal in the probe, and the protection casing outside is equipped with the outer safety cover of probe in the probe. The probe is protected by the probe inner protective cover and the probe outer protective cover, and the explosion-proof performance is good. The probe is isolated from the panel, and the probe and the panel are in respective chambers and do not generate dangerous influence related to explosion.

Description

Explosion-proof type combustible gas detector shell

Technical Field

The utility model relates to a combustible gas detector technical field, concretely relates to explosion-proof type combustible gas detector casing.

Background

The combustible gas detector is a point type gas detection device installed in an explosive dangerous environment, converts the concentration of the combustible gas on site into an electric signal and transmits the electric signal to a monitoring device located in a safety area so as to achieve the purpose of monitoring the concentration of the combustible gas on site.

The combustible gas detector has two types, namely a catalytic type and an infrared optical type. The catalytic combustible gas detector measures the concentration of combustible gas by using the resistance change of a refractory metal platinum wire after heating. When combustible gas enters the detector, an oxidation reaction (flameless combustion) is caused on the surface of the platinum wire, and the generated heat raises the temperature of the platinum wire, so that the resistivity of the platinum wire changes. Because the combustible gas detector detects combustible gas under the high temperature condition, the casing of combustible gas detector needs to possess explosion-proof performance.

Disclosure of Invention

An object of the utility model is to solve above-mentioned problem, provide explosion-proof type combustible gas detector casing.

In order to solve the above problem, the utility model discloses a technical scheme as follows:

explosion-proof type combustible gas detector casing, a serial communication port, it sets up the groove including the panel, the probe seat, protection casing in the probe, the outer safety cover of probe, the panel sets up the groove and is the cylindrical cell body of top open-ended, the panel sets up the groove top and is equipped with the upper cover that has perspective window, the panel sets up the groove lateral part and passes through threaded connection with the probe seat, probe seat center is equipped with the wire through-hole of connecting probe and panel, fill epoxy behind the connecting wire in the wire through-hole, probe seat below is equipped with protection casing in the probe, protection casing is made by foamed metal in the probe, the upper portion and the probe seat of protection casing pass through adhesive connection in the probe, the protection casing outside is equipped with the outer safety cover of probe in the probe.

Furthermore, the bottom of the probe outer protection cover is provided with a through hole, a breathable net is arranged above the through hole, and a breathable hole is formed in the side part of the probe outer protection cover.

Compared with the prior art, the utility model discloses favourable effect does:

(1) the utility model discloses a panel sets up groove, probe seat, the interior protection casing of probe, the outer safety cover of probe, and the panel sets up the inslot and sets up the panel, and the inside probe that sets up of protection casing in the probe, probe seat center are equipped with the wire through-hole of connecting probe and panel, fill epoxy behind the wire through-hole in-connection wire, and the probe is kept apart with the panel, and probe, panel are inside respective cavity, do not produce the dangerous influence of relevant explosion each other.

(2) The interior protection casing of probe is equipped with to probe seat below, and the protection casing is made by foamed metal in the probe, and the upper portion and the probe seat of protection casing pass through adhesive connection in the probe, and the protection casing outside is equipped with the outer safety cover of probe in the probe, and the outer safety cover of probe passes through threaded connection with the probe seat, and the probe is protected by interior protection casing of probe, the outer safety cover duplicate protection of probe, and explosion-proof capability is good.

(3) The probe inner shield is made of foam metal and does not prevent the probe from fully contacting with gas.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the housing of the explosion-proof type flammable gas detector of the present invention;

FIG. 2 is a top view of the housing of the explosion-proof flammable gas detector of the present invention;

FIG. 3 is a connection relationship diagram of the probe base and the inner protective cover of the probe of the present invention;

description of reference numerals: the probe comprises a panel setting groove-1, an upper cover-11, a probe seat-2, a lead through-hole-21, a probe inner protective cover-3, a probe outer protective cover-4, a through-hole-41, a breathable net-42, a breathable hole-43, a panel-5 and a probe-6.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to the attached drawings 1 to 3 of the specification, the explosion-proof combustible gas detector shell comprises a panel setting groove 1, a probe seat 2, a probe inner protective cover 3 and a probe outer protective cover 4, wherein the panel setting groove 5 is a cylindrical groove body with an upper opening, an upper cover 11 with a perspective window is arranged above the panel setting groove 1, the upper cover is fixedly connected with the panel setting groove through a jackscrew, the side part of the panel setting groove is connected with the probe seat 2 through a thread, a lead through hole 21 for connecting the probe and the panel is arranged in the center of the probe seat 2, epoxy resin is filled in the lead through hole 21 after a lead is connected with the lead, at the moment, a panel electronic element in the panel setting groove is separated from a probe below the probe seat, and no dangerous influence related to explosion is generated between the panel electronic. Probe seat below is equipped with in the probe protection casing 3, and during probe 6 inserted the probe seat, the probe outside covers in the probe protection casing, and protection casing 3 is made by foamed metal in the probe, this embodiment foamed metal adopts titanium alloy, and foamed metal can purchase from the market and obtain, and the upper portion and the probe seat 2 of protection casing 3 pass through adhesive bonding in the probe, and 3 outsides of protection casing are equipped with the outer safety cover 4 of probe in the probe, and the outer safety cover 4 of probe passes through threaded connection with probe seat 2. The probe is protected by the probe inner cover and the probe outer cover, and the explosion-proof performance is good; the probe inner shield is made of foam metal and does not prevent the probe from fully contacting with gas.

Further, the bottom of the probe outer protection cover 4 is provided with a through hole 41, a ventilation net 42 is arranged above the through hole, the ventilation net is adhered to the bottom of the probe outer protection cover 4 through epoxy resin glue and blocks the through hole, and the side part of the probe outer protection cover is provided with a ventilation hole 43. The through holes and the air holes are used for enabling the interior of the probe outer protection cover to be full of air, and the probe is enabled to be fully contacted with the air.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Explosion-proof type combustible gas detector casing, a serial communication port, it sets up the groove including the panel, the probe seat, protection casing in the probe, the outer safety cover of probe, the panel sets up the groove and is the cylindrical cell body of top open-ended, the panel sets up the groove top and is equipped with the upper cover that has perspective window, the panel sets up the groove lateral part and passes through threaded connection with the probe seat, probe seat center is equipped with the wire through-hole of connecting probe and panel, fill epoxy behind the connecting wire in the wire through-hole, probe seat below is equipped with protection casing in the probe, protection casing is made by foamed metal in the probe, the upper portion and the probe seat of protection casing pass through adhesive connection in the probe, the protection casing outside is equipped with the outer safety cover of probe in the probe.

2. The shell of the explosion-proof type combustible gas detector according to claim 1, wherein the bottom of the outer protection cover of the probe is provided with a through hole, a ventilation net is arranged above the through hole, and a ventilation hole is arranged at the side part of the outer protection cover of the probe.