CN218598811U

CN218598811U - Sealing structure of gas collection gun

Info

Publication number: CN218598811U
Application number: CN202223097700.6U
Authority: CN
Inventors: 金世波; 王克; 柳明旭
Original assignee: Bengang Steel Plates Co Ltd
Current assignee: Bengang Steel Plates Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-10
Anticipated expiration: 2032-11-22

Abstract

The utility model provides a seal structure of gaseous collection rifle, including gathering the rifle barrel, rubber seal pad, permanent magnetism magnetic force sucking disc, flexible sealing member, it inserts in the equipment to be tested to gather the reservation detection mouth that the rifle barrel passed the equipment to be tested, the reservation detection mouth lateral wall of equipment to be tested is the magnetic conduction metal, flexible sealing member winding is on gathering the rifle barrel and in reserving the gap that detects the mouth, rubber seal pad and the equal suit of permanent magnetism magnetic force sucking disc are on gathering the rifle barrel, permanent magnetism magnetic force sucking disc with reserve detection mouth lateral wall magnetic force and adsorb, rubber seal pad is at permanent magnetism magnetic force sucking disc and reserve between the detection mouth, the outer diameter of rubber seal pad is greater than and reserves detection mouth and is less than permanent magnetism magnetic force sucking disc. The utility model discloses export department outside the collection mouth and increase rubber packing pad and permanent magnetism magnetic force sucking disc, the gap between the collection mouth that makes flue gas collection rifle and reservation can be sealed better, when avoiding gathering the rifle slope and leaking out, plays the effect that supports the collection rifle, reaches accurate measuring purpose.

Description

Sealing structure of gas collection gun

Technical Field

The utility model relates to a detect inspection technique, in particular to seal structure of gaseous collection rifle.

Background

In the sintering process of sintering ores in an iron plant, the better the sealing performance of an air supply system, a sintering skip car and an exhaust system is, the better the sintering effect is, and when the sealing effect is reduced to a certain degree, the whole system needs to be overhauled. The sealing effect can be evaluated by measuring the air leakage rate of the system, and most enterprises manually use the gas collecting gun to obtain gas in the system and analyze the oxygen content of the gas from the aspect of economic applicability at present.

When gathering the smoke and dust flue gas to iron works sintering process air feed, sintering skip and exhaust system, need stretch into the collection mouth of reserving with gathering the rifle, gather the mouth diameter and will be greater than the diameter of gathering the rifle barrel so that gather putting into and taking out of rifle. After the collection gun stretches into the collection port, negative pressure in the pipeline is large, poor tightness can cause external air to be sucked into the collection gun, and detection results are abnormal. The sampling personnel often will use the towel, broken cloth etc. article to soak the back and will gather the rifle and gather the space between the mouth and plug, but the sealed effect of this kind of mode is not too good, and leads to easily gathering the condition such as rifle slope air leakage, wet towel drying and droing, influences the detection effect.

Chinese patent document No. 201520637749.7 discloses "sintering machine gas collection gun", comprises rifle head, extension bar, the rifle body and sealed fender, all adopts threaded connection's detachable split type structure between rifle head and extension bar and the rifle body, and spiral evenly distributed has the trompil on extension bar and the rifle body, is equipped with sealed fender at the rifle body rear portion. Although this sintering machine gas acquisition rifle has also set up the sealed fender at the afterbody of the rifle body, the position of this sealed fender on the rifle body is fixed, has restricted the length that the rifle body stretched into equipment to be examined, and in addition, this sealed fender needs external force to promote to make it hug closely the equipment outer wall and just can play sealed effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a seal structure of gaseous collection rifle, the utility model discloses when using traditional sealed means, export department increases the sealed pad of rubber and permanent magnetism magnetic force sucking disc outside the collection mouth, makes the gap between collection mouth that the rifle is gathered to the flue gas and reserve can seal better, when avoiding gathering the rifle condition emergence of leaking out, plays the effect that supports the collection rifle, reaches accurate measuring purpose.

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

the utility model provides a seal structure of gaseous collection rifle, is including gathering rifle barrel, rubber packing, permanent magnetism magnetic force sucking disc, flexible sealing member, it inserts in the equipment to be tested to gather the reservation detection mouth that the rifle barrel passed the equipment to be tested, the reservation of equipment to be tested detects a mouthful lateral wall and is the magnetic conduction metal, flexible sealing member winding is on gathering the rifle barrel and in the gap of reserving the detection mouth, rubber packing and the equal suit of permanent magnetism magnetic force dish are on gathering the rifle barrel, permanent magnetism magnetic force dish adsorbs with reserving detection mouthful lateral wall magnetic force, rubber packing is at permanent magnetism magnetic force dish and reserves between the detection mouth, the outer diameter of rubber packing is greater than and reserves the detection mouth and is less than permanent magnetism magnetic force dish.

The flexible sealing element is a moist cotton fabric.

The barrel of the collecting gun is a non-magnetizer.

The equipment to be tested is an air supply pipeline of a sintering process, or a sintering skip car, or an air exhaust pipeline of the sintering process.

The air supply pipeline of the sintering process, the sintering skip car and the air exhaust pipeline of the sintering process are all cast iron outer walls.

The magnetic field intensity of the permanent magnetic sucker is greater than 5000 ao.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in order to solve the problem that the traditional sealing materials (towels, broken cloth and the like) of the gas collection gun are not tightly sealed, a rubber sealing gasket and a permanent magnetic sucking disc are additionally arranged on the gas collection gun, so that the magnetic sucking disc can be well adsorbed on an iron casting, and the problem of poor sealing is effectively solved.

2. The rubber sealing gasket and the permanent magnetic force sucking disc are added, the problem of poor negative pressure sealing performance is solved, and meanwhile the effect of fixing the gun barrel is achieved.

3. The added rubber sealing pad also plays a role in heat insulation, and the problem of demagnetization caused by direct contact of the permanent magnet and a high-temperature object is solved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-collecting a gun barrel, 2-flexible sealing parts, 3-reserving a side wall of a detection port, 4-rubber sealing gaskets, 5-permanent magnetic discs and 6-external connection rubber tubes.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a seal structure of gaseous collection rifle, including gathering rifle barrel 1, rubber packing 4, permanent magnetism magnetic force sucking disc 5, flexible sealing member 2, gather rifle barrel 1 and pass the reservation of the equipment to be tested and detect the mouth and insert the equipment to be tested in, the reservation of the equipment to be tested detects a mouthful lateral wall 3 and is the magnetic conduction metal, flexible sealing member 2 winding is on gathering rifle barrel 1 and in the gap of reserving the detection mouth, rubber packing 4 and permanent magnetism magnetic force dish 5 equal suit are on gathering rifle barrel 1, permanent magnetism magnetic force dish 5 with reserve the absorption of detection mouth lateral wall magnetic force, rubber packing 4 is between permanent magnetism magnetic force dish 5 and reservation detection mouth, rubber packing 4 external diameter is greater than and reserves the detection mouth and is less than permanent magnetism magnetic force dish 5.

The flexible sealing element 2 is a moist cotton fabric.

The collection gun barrel 1 is a non-magnetizer.

The magnetic field intensity of the permanent magnetic sucker 5 is greater than 5000 ao.

The utility model discloses in the gaseous collection rifle barrel 1 outside of oxygen analysis appearance, increased closely sealed 4 and the slidable permanent magnetism magnetic force sucking disc 5 of cover on gathering rifle barrel 1 (magnetic field intensity is greater than 5000 ao). When measuring the rate of leaking out and carrying out flue gas collection analysis oxygen content, plug up collection rifle barrel 1 and reserve the space between the detection mouth with flexible sealing member 4 (wet towel, broken cloth etc.) earlier, then will overlap the sealed 4 and permanent magnetism magnetic chuck 5 slip to the gas collection mouth surface department of reserving on collection rifle barrel 1, utilize magnetic force between permanent magnetism magnetic chuck 5 and cast iron, closely compress rubber gasket 4 outside the gas collection mouth and carry out the secondary seal, when effectively solving sealed not tight problem, fixed barrel effect has also been played. The added rubber sealing gasket 4 plays a role in sealing and heat insulation, and the demagnetization problem caused by direct contact of the permanent magnet and a high-temperature object is avoided.

Example 1:

when measuring the rate of leaking out to iron mill sintering skip system, stretch into the gas collection mouth that sintering skip reserved with gas collection rifle barrel 1 earlier to suitable position, then with wet towel, broken cloth etc. winding on collection rifle barrel 1 and plug up the space between collection rifle barrel 1 and the detection mouth of reserving, will cover rubber seal 4 and the magnetic force sucking disc 5 of permanent magnetism on collection rifle barrel 1 and slide to the gas detection mouth surface department of reserving again, the sintering skip outer wall is the cast iron, utilize magnetic force between magnetic force sucking disc 5 of permanent magnetism and the cast iron, make rubber seal 4 closely compress tightly and carry out the secondary seal outside gas collection mouth, when effectively solving sealed not tight problem, also played fixed barrel effect. The rubber sealing gasket 4 is added to play a role in sealing and heat insulation, so that the problem of demagnetization caused by direct contact between the permanent magnet and the outer wall of the high-temperature compartment is avoided. The tail part of the collection gun barrel 1 is connected with an oxygen analyzer through an external rubber tube 6. The magnetic field intensity of the permanent magnetic sucker 5 is greater than 5000 ao. Gather and do not have magnetic force between rifle barrel 1 and the permanent magnetism magnetic force sucking disc 5 and adsorb, permanent magnetism magnetic force sucking disc 5 can be on gathering rifle barrel 1 and freely slide, and rubber seal 4 is closely cup jointed the relation with gathering rifle barrel 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

The technical principle of the present invention has been described above with reference to specific embodiments. These descriptions are only used for the purpose of illustrating the principles of the invention; and should not be construed as limiting the scope of the invention in any way. Based on the explanations herein; other embodiments of the invention will occur to those skilled in the art without the need for inventive work; all of these ways will fall within the scope of protection of the present invention.

Claims

1. The utility model provides a seal structure of gaseous collection rifle, a serial communication port, including gathering rifle barrel, rubber packing pad, permanent magnetism magnetic force sucking disc, flexible sealing member, gather the rifle barrel and pass the reservation of the equipment of awaiting measuring and detect the mouth and insert the equipment of awaiting measuring, the reservation of the equipment of awaiting measuring detects a mouthful lateral wall and is the magnetic conduction metal, flexible sealing member winding is on gathering the rifle barrel and is filled in reserving the gap that detects the mouth, rubber packing pad and the equal suit of permanent magnetism magnetic force sucking disc are on gathering the rifle barrel, permanent magnetism magnetic force sucking disc with reserve the side wall magnetic force of detecting the mouth and adsorb, rubber packing pad is at permanent magnetism magnetic force sucking disc and reserve between the detecting the mouth, the sealed external diameter of rubber packing is greater than and reserves the detecting mouth and is less than permanent magnetism sucking disc magnetic force.

2. The seal arrangement of claim 1, wherein said flexible seal is a moist cotton fabric.

3. A seal arrangement for a gas collection gun according to claim 1, wherein the collection gun barrel is a non-magnetically conductive body.

4. The sealing structure of claim 1, wherein the device under test is an air supply pipeline of a sintering process, or a sintering material cart, or an air exhaust pipeline of the sintering process.

5. The sealing structure of the gas collecting gun according to claim 4, wherein the air supply duct of the sintering process, the sintering skip car and the air exhaust duct of the sintering process are cast iron outer walls.

6. A sealing arrangement for a gas collection gun according to claim 4, wherein said permanent magnet magnetic chuck has a magnetic field strength greater than 5000 oersted.

7. The seal structure of a gas collection gun according to claim 1, wherein the tail of the collection gun barrel is connected to a gas analyzer through an external connection hose.