CN219201038U

CN219201038U - Prepare elasticity burning jar of burning thing flue gas sample

Info

Publication number: CN219201038U
Application number: CN202223023607.0U
Authority: CN
Inventors: 张晓庆; 梁奕; 雷恒池
Original assignee: Institute of Atmospheric Physics of CAS
Current assignee: Institute of Atmospheric Physics of CAS
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-06-16
Anticipated expiration: 2032-11-14

Abstract

The utility model relates to the technical field of combustion flue gas sampling, and discloses an elastic combustion tank for preparing a combustion flue gas sample, which comprises a tank body, a pressure release device, an air extraction interface and a burner, wherein the tank body is detachably provided with a closed cover; a pressure relief device, wherein the internal pressure of the combustion tank is basically balanced with the external pressure; the combustion tank is in a closed state when in operation, and the acquired smoke component data is more accurate; the design of the air extraction interface not only provides good sealing performance, but also facilitates the sampling operation of the gas, and is particularly suitable for repeated sampling operation.

Description

Prepare elasticity burning jar of burning thing flue gas sample

Technical Field

The utility model relates to the technical field of combustion flue gas sampling, in particular to preparation of a combustion flue gas sample containing substances such as combustion improver, oxidant, gunpowder and the like.

Background

The combustion tank is a device for quantitatively burning specified substances to prepare smoke in a certain volume, and is widely applied to tests such as component analysis, sample preparation and the like. According to the volume, the device is divided into a combustion tower, a combustion chamber, a combustion tank and the like. The volume of the combustion tower is generally 30m ³ The volume of the combustion chamber is 2m ³ Above, the volume is less than 2m ³ Is referred to as a burn pot. The flue gas preparation devices with different volumes all have the same characteristic that the flue gas preparation devices keep a closed state in the flue gas preparation process. What volume is adopted for flue gas preparation is mainly determined according to the mass of the combustion, the heat generated by combustion and the impact strength caused by combustion: the mass of the combustion is large, the heat generated during combustion is large, the impact strength caused by combustion is large, and a large-volume combustion tower is adopted; otherwise, a combustion chamber, a combustion tank, etc. are used.

The sealing performance of the combustion tank has great influence on the analysis result of test data, and factors influencing the sealing performance of the combustion tank mainly have two aspects: firstly, when the calorific value of the combustion products is large or the deflagration phenomenon occurs, the gas in the tank body rapidly expands, the pressure is increased, and the requirements on the strength and the sealing capability of the tank body are higher (the substances in the tank are easy to leak out); secondly, when extracting the flue gas, great interior pressure makes the sample connection be difficult to realize airtight, namely: the smoke extraction can be carried out, and the smoke leakage can not occur. It is desirable to have a structure that reduces the instantaneous pressure differential across the combustion canister.

Disclosure of Invention

The utility model aims to provide an elastic combustion tank for preparing a combustion object smoke sample, which adopts a physical mode to avoid the phenomena of air leakage and the like of a container caused by the increase of the internal pressure of the container due to combustion or other modes.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to an elastic combustion tank for preparing a sample of combustion smoke, which comprises a tank body, a pressure release device, an air extraction interface and a combustion assembly, wherein the tank body is detachably provided with a closed cover, the pressure release device and the air extraction interface are arranged on the closed cover, and the combustion assembly is arranged in the tank body.

Further, a sealing rubber ring is arranged between the sealing cover and the upper opening of the tank body, and the sealing cover is connected with the tank body by utilizing a sealing buckle.

Further, the air extraction interface comprises a protective cover, a gland, a nipple, a collet and a collet fixing nut, wherein the protective cover is a thick tooth bolt with an O-shaped sealing gasket; the outer wire A of the protective cover and the inner wire A' of the gland are a pair of coupling wire ports; the nipple is pressed together by the gland and the collet; the outer wire B of the bottom support and the inner wire B' of the gland are a pair of coupling wire ports; the air extraction interface is fixed on the airtight cover by the shoe and the shoe fixing nut, the outer wire C of the shoe and the inner wire C' of the shoe fixing nut are a pair of coupling wire openings, and the shoe can be fixed on the airtight cover in a welding, gluing and other modes; when the protective cover, the gland, the nipple and the collet are combined and locked, the air extraction interface is airtight, the protective cover is opened, and a gas needle cylinder sampler is adopted to collect a gas sample.

Further, the pressure release device comprises a pressure release air bag, a locking nut, a quick screwing joint and a fixing nut, wherein the pressure release air bag is made of high-elasticity air leakage prevention materials, the volume is estimated according to the expansion volume of a combustion object, and the pressure release air bag is in a flat state without support in a normal state; the caliber of the pressure relief air bag is matched with the locking nut and the quick screwing joint, the outlet of the pressure relief air bag is sleeved on the quick screwing joint, and the locking nut is fastened to form an air bag with a single air outlet; the outer wire G of the quick-screwing joint and the inner wire G' for fastening the locking nut are a pair of coupling wire ports; the pressure release device is fixed on the airtight cover by the quick-screwing joint and the fixing nut, the outer wire I of the quick-screwing joint and the inner wire I' of the fixing nut are a pair of coupling wire openings, and the quick-screwing joint can be fixed on the airtight cover in a welding, gluing and other modes; when the gas in the closed tank expands, the gas flows into the pressure relief air bag through the quick-screwing joint 43, and the gas pressure in the tank is kept approximately normal pressure.

Further, the pressure release device comprises a pressure release sleeve nut, a pressure release sleeve, a compression nut and a compression bottom padThe pressure relief sleeve is cylindrical; the piston is disc-shaped, and the diameter of the piston is changed by adjusting the length of the inner screw rod and longitudinally extruding the piston so as to adapt to the coupling with the inner diameter of the pressure release sleeve; the scale rod is cylindrical, the outer wall is provided with scales, the inner core is penetrated with an inner screw, one end of the inner screw clamps the piston by an extrusion nut seal head, an extrusion bottom pad and an extrusion upper pad, the other end of the inner screw seals the tail by a hand screw cap and is matched with the pressure release sleeve, and the extrusion bottom pad is positioned at the bottom of the pressure release sleeve before use; when the gas in the sealed tank body expands, the gas flows into the pressure relief sleeve to jack up the piston, and the volume V:V=pi HD of the gas expansion can be obtained through the height indication H of the scale rod and the inner diameter D of the pressure relief sleeve ² /4。

Further, the combustion assembly comprises a combustion rod, a combustion rod frame, a fastening nut, a power supply mounting seat and a power supply seat; the fastening nut is used for fixing the power supply mounting seat on the tank body; the combustion rod rack is fixedly arranged on the power supply mounting seat; the combustion rod is inserted into the combustion rod frame; the power line of the combustion rod is led out of the tank body through the combustion rod frame and the power supply mounting seat.

The utility model has the following beneficial effects:

(1) The structure is simple, the sealing is tight, the sealing requirement is low, and the sealing is carried out under the general airtight condition;

(2) A pressure relief device, wherein the internal pressure of the combustion tank is basically balanced with the external pressure;

(3) The combustion tank is in a closed state when in operation, and the acquired component data is more accurate;

(4) The design of the air extraction interface not only provides good sealing performance, but also facilitates the sampling operation of the gas, and is particularly suitable for repeated sampling operation.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a flexible combustion can;

FIG. 2 is a cross-sectional view of the flexible combustion can;

FIG. 3 is a schematic view of the external appearance of the flexible combustion can;

FIG. 4 is a schematic diagram of a pumping interface;

FIG. 5 is a schematic diagram of a pressure relief device;

FIG. 6 is a schematic view of a combustion assembly;

FIG. 7 is a schematic diagram of a pressure relief alternative;

fig. 8 is a schematic installation diagram of a pressure relief device alternative.

Description of the drawings: 1-tank, 2-airtight cover, 3-air extraction interface, 4-pressure release device, 5-first airtight buckle, 51-second airtight buckle, 52-third airtight buckle, 53-fourth airtight buckle, 6-power seat, 7-combustion component, 8-sealing rubber ring, 31-protective cover, 32-gland, 33-nipple, 34-collet, 35-collet fixation nut, 41-pressure release air bag, 42-locking nut, 43-quick screw joint, 44-fixation nut, 71-combustion rod, 72-combustion rod rack, 73-fastening nut, 74-power supply installation seat, 4' -alternative pressure release device, 81-pressure release sleeve nut, 82-pressure release sleeve, 83-extrusion nut, 84-extrusion bottom pad, 85-piston, 86-extrusion upper pad, 87-scale rod, 88-internal screw, 89-hand screw nut, D-pressure release sleeve inner diameter, H-piston running distance.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "middle," "outer," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to the drawings, the utility model discloses an elastic combustion tank for preparing a sample of flue gas of a combustion object, which comprises a tank body 1, wherein the tank body 1 is cylindrical, a closed cover 2 is arranged on the tank body 1, an air extraction interface 3, a pressure release device 4 and a sealing rubber pad 8 are arranged on the closed cover 2, the closed cover 2 is tightly matched with the tank body 1 through closed

buckles

5, 51, 52 and 53 on the tank body 1, a power supply seat 6 is arranged on the tank body 1, and a combustion assembly 7 is arranged in the tank body 1.

Referring to fig. 1, an elastic burn pot for preparing a sample of combustion flue gas according to the present utility model comprises 8 parts: the device comprises a tank body 1, a sealing cover 2, an air extraction interface 3, a pressure release device 4, a sealing buckle 5, a power supply seat 6, a combustion assembly 7 and a sealing rubber ring 8. Wherein the combustion assembly 7 and the sealing rubber ring 8 are positioned in the tank body 1, and when the tank body 1 is closed by the sealing cover 2, the tank body 1 is in a sealed environment.

1. Tank body:

referring to fig. 1, a can 1 is cylindrical; the closing cap 2 is disc-shaped (see fig. 2); the first sealing buckle 5, the second sealing buckle 51, the third sealing buckle 52 and the fourth sealing buckle 53 are respectively extrusion type buckles; the sealing rubber ring 8 is a ring-shaped silica gel pad; the sealing cover 2 is matched with the sealing rubber ring 8 to tightly seal the tank body 1 under the extrusion of the

sealing buckles

5, 51, 52 and 53, and a sealed environment is formed in the tank body 1; the tank body 1 is provided with

sealing buckles

5, 51, 52 and 53, a power supply seat 6 and a combustion assembly 7; the airtight cover 2 is provided with an air extraction interface 3 and a pressure release device 4.

2. And (3) an air extraction interface:

referring to fig. 3, the air extraction interface 3 consists of a protective cover 31, a gland 32, a nipple 33, a collet 34 and a collet fixing nut 35; the protective cover 31 is a thick tooth bolt with an O-shaped sealing gasket; the outer wire A of the protective cover 31 and the inner wire A' of the gland 32 are a pair of coupling wire ports; the nipple 33 is pressed together by the gland 32 and the collet 34; the outer wire B of the bottom support 34 and the inner wire B' of the gland 32 are a pair of coupling wire ports; the air extraction interface 3 is fixed on the closed cover 2 by the collet 34 and the collet fixing nut 35, the outer wire C of the collet 34 and the inner wire C' of the collet fixing nut 35 are a pair of coupling wire openings, and the collet 34 can be fixed on the closed cover 2 in a welding, gluing and other modes; when the protective cover 31, the gland 32, the nipple 33, the base 34 and the like are combined and locked, the air extraction interface 3 is airtight, the protective cover 31 is opened, and a gas sample can be acquired by adopting the gas syringe sampler.

3. Pressure release ware:

referring to fig. 4, the pressure release device 4 is composed of a pressure release air bag 41, a locking nut 42, a quick-screwing joint 43 and a fixing nut 44; the pressure relief air bag 41 is made of high-elasticity air leakage prevention material, the volume is estimated according to the expansion volume of the combustion object, and the pressure relief air bag 41 is not supported to be in a flat state in a normal state; the caliber of the pressure relief air bag 41 is matched with that of the locking nut 42 and the quick-screwing joint 43, the outlet of the pressure relief air bag 41 is sleeved on the quick-screwing joint 43, and the locking nut 42 is fastened to form an air bag with a single air outlet; the outer wire G of the quick-screwing joint 43 and the inner wire G' of the fastening lock nut 42 are a pair of coupling wire ports; the pressure release device 4 is fixed on the closed cover 2 by the quick-screwing joint 43 and the fixing nut 44, the outer wire I of the quick-screwing joint 43 and the inner wire I' of the fixing nut 44 are a pair of coupling wire openings, and the quick-screwing joint 43 can be fixed on the closed cover 2 in a welding, gluing and other modes; when the gas in the closed tank 1 expands, the gas flows into the pressure relief air bag 41 through the quick-screwing joint 43, and the gas pressure in the tank 1 is kept approximately normal pressure.

4. A combustion assembly:

referring to fig. 5, the combustion assembly 7 is composed of a combustion rod 71, a combustion rod holder 72, a fastening nut 73, a power supply mount 74, and a power supply mount 6; the fastening nut 73 fixes the power supply mounting seat 74 on the tank body 1, so the power supply mounting seat 74 can be fixed in a welding, gluing and other modes as well; the combustion rod frame 72 is fixedly arranged on the power supply mounting seat 74; the combustion rod 71 is inserted into the combustion rod frame 72, and is suggested to be fixed by jacking through bolts, so that the maintenance and the replacement are convenient; the power line of the combustion rod 71 is led out of the tank body 1 through the combustion rod frame 72 and the power supply mounting seat 74; after the power line of the combustion rod 71 is well connected with the power supply seat 6, the power supply seat 6 is arranged on the power supply installation seat 74, so that the combustion rod has waterproof sealing capability, and the sealing performance of the tank body 1 is ensured.

7. Alternative solution

Referring to fig. 6, a pressure relief device 4' may be substituted for the pressure relief device 4; the pressure release device 4' is composed of a pressure release sleeve nut 81, a pressure release sleeve 82, a compression nut 83, a compression bottom pad 84, a piston 85, a compression upper pad 86, a scale rod 87, an inner screw 88 and a hand screw nut 89; the pressure relief sleeve 82 is cylindrical and has a smooth inner wall, and is preferably made of glass or organic materials; the piston 85 is disc-shaped and is preferably made of a flexible material, and the diameter of the piston 85 is longitudinally extruded by adjusting the length of the inner screw 88 to change so as to adapt to the coupling with the inner diameter of the pressure release sleeve 82; the scale rod 87 is cylindrical, the outer wall is provided with scales, the inner core is penetrated with an inner screw rod 88, one end of the inner screw rod 88 clamps the piston 85 by an extrusion nut 83 head, an extrusion bottom pad 84 and an extrusion upper pad 86, the other end is provided with a hand screw cap 89 for sealing the tail, the hand screw cap is matched with the pressure release sleeve 82, and the running distance of the piston 85 can be obtained through the scale value of the scale rod 87. Before use (see fig. 7), the squeeze pad 84 is located at the bottom of the pressure release sleeve 82, i.e., in close proximity to the closure cap 2; when the gas in the sealed tank body 1 expands, the gas flows into the piston 85 through the pressure relief sleeve, the piston 85 is jacked up, and the height indication H of the scale rod 87 and the inner diameter D of the pressure relief sleeve 82 can obtain the volume V of the gas expansion:

V＝πHD2/4。

in the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. An elastic combustion tank for preparing a sample of combustion flue gas, which is characterized in that: the novel energy-saving stove comprises a stove body, a pressure release device, an air extraction interface and a combustion assembly, wherein the stove body is detachably provided with a closed cover, the pressure release device and the air extraction interface are arranged on the closed cover, and the combustion assembly is arranged in the stove body.

2. The elastic combustion tank for preparing a sample of flue gas of a combustion object according to claim 1, wherein a sealing rubber ring is arranged between the sealing cover and the upper opening of the tank body, and the sealing cover is connected with the tank body by utilizing a sealing buckle.

3. The elastic combustion tank for preparing a sample of combustion flue gas according to claim 1, wherein the air extraction interface comprises a protective cover, a gland, a nipple, a base and a base fixing nut, and the protective cover is a thick tooth bolt with an O-shaped sealing gasket; the outer wire A of the protective cover and the inner wire A' of the gland are a pair of coupling wire ports; the nipple is pressed together by the gland and the collet; the outer wire B of the collet and the inner wire B' of the gland are a pair of coupling wire ports; the air extraction interface is fixed on the airtight cover by the shoe and the shoe fixing nut, the outer wire C of the shoe and the inner wire C' of the shoe fixing nut are a pair of coupling wire openings, and the shoe can be fixed on the airtight cover in a welding and gluing mode; when the protective cover, the gland, the nipple and the collet are combined and locked, the air extraction interface is airtight, the protective cover is opened, and a gas needle cylinder sampler is adopted to collect a gas sample.

4. The elastic combustion tank for preparing a sample of flue gas of a combustion object according to claim 1, wherein the pressure release device comprises a pressure release air bag, a locking nut, a quick screwing joint and a fixing nut, the pressure release air bag is made of high-elasticity air leakage-proof materials, the volume is estimated according to the expansion volume of the combustion object, and the pressure release air bag is in a state of being free of support and being flat in a normal state; the caliber of the pressure relief air bag is matched with the locking nut and the quick screwing joint, the outlet of the pressure relief air bag is sleeved on the quick screwing joint, and the locking nut is fastened to form an air bag with a single air outlet; the outer wire G of the quick-screwing joint and the inner wire G' for fastening the locking nut are a pair of coupling wire ports; the pressure release device is fixed on the airtight cover by the quick-screwing joint and the fixing nut, the outer wire I of the quick-screwing joint and the inner wire I' of the fixing nut are a pair of coupling wire openings, and the quick-screwing joint can be fixed on the airtight cover in a welding and gluing mode; when the gas in the closed tank body expands, the gas flows into the pressure relief air bag through the quick-screwing joint, and the air pressure in the tank body is kept to be approximately normal pressure.

5. The elastic combustion tank for preparing a sample of flue gas of a combustion object according to claim 1, wherein the pressure release device comprises a pressure release sleeve nut, a pressure release sleeve, a pressure release nut, a pressure release bottom pad, a piston, a pressure release upper pad, a scale rod, an inner screw rod and a hand screw cap, and the pressure release sleeve is cylindrical; the piston is disc-shaped, and the diameter of the piston is changed by adjusting the length of the inner screw rod and longitudinally extruding the piston so as to adapt to the coupling with the inner diameter of the pressure release sleeve; the scale rod is cylindrical, the outer wall is provided with scales, the inner core is penetrated with an inner screw, one end of the inner screw clamps the piston by an extrusion nut seal head, an extrusion bottom pad and an extrusion upper pad, the other end of the inner screw seals the tail by a hand screw cap and is matched with the pressure release sleeve, and the extrusion bottom pad is positioned at the bottom of the pressure release sleeve before use; when the gas in the sealed tank body expands, the gas flows into the pressure relief sleeve to jack up the piston, and the volume V:V=pi HD of the gas expansion can be obtained through the height indication H of the scale rod and the inner diameter D of the pressure relief sleeve ² /4。

6. The flexible combustion tank for preparing a sample of combustion flue gas according to claim 1, wherein the combustion assembly comprises a combustion rod, a combustion rod holder, a fastening nut, a power supply mounting base and a power supply base; the fastening nut is used for fixing the power supply mounting seat on the tank body; the combustion rod rack is fixedly arranged on the power supply mounting seat; the combustion rod is inserted into the combustion rod frame; the power line of the combustion rod is led out of the tank body through the combustion rod frame and the power supply mounting seat.