CN219333022U - Fire-retardant device - Google Patents

Abstract

The utility model discloses a fire-retarding device, which comprises two connecting parts arranged between pipelines, an expansion joint arranged between the connecting parts, and a fire-retarding piece comprising a first fire-retarding element and a second fire-retarding element, wherein when one fire-retarding element is blocked after being used for a period of time, the expansion joint is shortened under the drive of a first driving part to form a first space, at the moment, the fire-retarding part is driven by the second driving part to move until the other fire-retarding part moves to the middle part of the pipeline, under the action of the first driving part, the expansion joint is abutted between the connecting parts and the fire-retarding part, the conditions of pipeline tightness and normal operation of the fire-retarding element are met, and the fire-retarding part to be cleaned or replaced is moved out of the pipeline.

Description

Fire-retardant device

Technical Field

The application relates to the technical field of tail gas emission equipment, in particular to a fire retardant device.

Background

The information provided in this section is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventors, to the extent it is described in this section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure.

Flame arresters are safety devices used to prevent the spread of flames from flammable gases and flammable liquid vapors. Means for preventing the passage of a propagating flame (deflagration or detonation), typically mounted in a conduit for transporting combustible gases, or on a ventilated tank.

Because of pipeline gas purity difference, gas carries the granule also different, this application relates to a utilize inflammable industrial tail gas's quick auto-change over device of flame arrester, receives multiparty factor influence, will have little foam to get into the tail gas pipeline when the technology is undulant, is blocked in the flame retardant component department, and the flame retardant component acts as the filtration this moment, and the flame retardant component takes place to block up over time. When traditional flame arrester takes place to block up the maintenance, most because of not fully considering pipeline gas purity degree, cause the flame arrester to block up and can only adopt traditional unpick and wash the method, it is longer to consume time, and the occupation labor cost is great, and because the flame arrester does not have elastic element to cause the spacer damage serious in the unpick and wash the in-process, increase cost of maintenance and maintenance risk, can also influence the upper and lower stream production stable because of the maintenance time is longer simultaneously.

Disclosure of Invention

To the defect that exists among the prior art, this application provides a fire-retardant device to overhaul after solving the fire-retardant component in the pipeline among the prior art and change the difficult problem.

The above object of the present utility model is mainly achieved by the following technical solutions:

a firestop device, comprising:

the two connecting parts are respectively used for connecting the pipelines;

the expansion joint is arranged between the two connecting parts;

the first driving part is arranged between one connecting part and the expansion joint and is used for driving the two ends of the expansion joint to move close to each other so as to enable a first space to be formed between the expansion joint and the other connecting part;

the fire-retarding part is rotatably arranged in the first space and comprises a first fire-retarding element and a second fire-retarding element;

and the second driving part is arranged between the connecting part and the fire retarding part and is used for driving the fire retarding part to rotate in a reciprocating way so as to enable the first fire retarding element or the second fire retarding element to be positioned in the pipeline.

Further, the fire-retardant device further comprises a screw rod, a clamping ring matched with the screw rod is arranged at one end of the expansion joint, and the first driving part drives the screw rod to rotate and drive the clamping ring to translate along the length direction of the screw rod.

Further, rubber rings which are used for being clamped by the connecting part and the expansion joint are respectively arranged on the end surfaces of the two sides of the fire retarding part.

Further, a connecting flange is arranged between the expansion joint and the fire retarding part.

Further, the connecting flange is made of stainless steel or carbon steel.

Further, a convex tooth section is arranged on the fire retarding part, and a gear matched with the convex tooth section is arranged on the output end of the second driving part.

Further, the expansion joint is provided with two, and this is between the fire-retarding portion and the two connecting portions, respectively.

Further, the first driving part and the second driving part adopt rotating motors.

Further, a bracket is arranged between the fire retarding part and the pipeline, and the fire retarding part is rotatably connected with the bracket.

Further, the first and second firestop elements are detachably connected to the firestop section.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, two connecting parts are arranged between pipelines, an expansion joint is arranged between the connecting parts, a first driving part is arranged between the expansion joint and the connecting parts, and a fire stopping piece comprising a first fire stopping element and a second fire stopping element is arranged between the fire stopping part and the connecting parts, wherein in the use process of the fire stopping device after installation, the first fire stopping element or the second fire stopping element is positioned in the middle of the pipeline and plays a role in stopping the fire of combustible tail gas, when one fire stopping element is blocked after being used for a period of time, the expansion joint is shortened and forms a first space under the driving of the first driving part, at the moment, the fire stopping part is driven to move by the second driving part until the other fire stopping part moves to the middle of the pipeline, under the effect of the first driving part, the expansion joint is propped between the connecting part and the fire stopping part, the conditions of the sealing performance of the pipeline and the normal working condition of the fire stopping element are met, the fire stopping part to be cleaned or replaced is moved out of the outside the pipeline, and the cost of the fire stopping element to be cleaned or replaced can be cleaned or replaced under the premise that related production and discharge equipment is not stopped, and the cost of the fire stopping element is lowered and the cost is lowered.

Drawings

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

FIG. 1 is a top view of a firestop device according to an embodiment of the present application;

FIG. 2 is a front view of a firestop device according to an embodiment of the present application;

in the figure: 11. a connection part; 12. an expansion joint; 2. a first driving section; 21. a screw rod; 3. a fire-blocking part; 31. a first firestop element; 32. a second firestop element; 33. a tooth segment; 4. a second driving section; 41. a gear; 5. a clasp; 6. and (5) connecting the flanges.

Detailed Description

The utility model is further described with reference to the drawings and specific examples. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model. Specific structural and functional details disclosed herein are merely representative of example embodiments of the utility model. This utility model may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1-2, a fire-retarding apparatus includes two connection portions 11, an expansion joint 12, a first driving portion 2, a fire-retarding portion 3, and a second driving portion 4, wherein:

the two connecting parts 11 are respectively used for connecting pipelines, a disconnecting area for installing the fire retarding device is arranged in the middle of the pipeline, the two connecting parts 11 are arranged in the disconnecting area, and the sealing performance between the fire retarding device and the pipeline is kept through the stable connection relationship and the stable sealing relationship between the connecting parts 11 and the pipeline, so that the stability of the fire retarding device in the working process is improved.

An expansion joint 12 is arranged between the two said connection parts 11, the expansion joint 12 being conventionally also called a compensator, or expansion joint. The expansion joint 12 may be composed of a bellows (an elastic member) and accessories such as an end pipe, a bracket, a flange, a pipe, etc. constituting its working body. The expansion joint 12 is a flexible element that effectively acts to compensate for axial deformation. The effective expansion and contraction deformation of the corrugated pipe of the working main body is utilized to absorb the dimensional changes of pipelines, ducts, containers and the like caused by expansion due to heat, contraction due to cold and the like, or compensate the axial, transverse and angular displacement of the pipelines, ducts, containers and the like. The heat-insulating pipe can also be used for noise reduction, vibration reduction and heat supply, and in order to prevent the pipeline from deforming or being damaged due to thermal elongation or temperature stress when the heat-insulating pipe is heated, a compensator needs to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipe wall and acting force acting on a valve element or a support structure are reduced.

In order to automatically extend or maintain a certain abutting effect after the expansion joint 12 is compressed, a spring may be provided in the bellows in the above specific embodiment.

The first driving part 2 is arranged between one connecting part 11 and the expansion joint 12, and is used for driving two ends of the expansion joint 12 to move close to each other, so that a first space is formed between the expansion joint 12 and the other connecting part 11.

The fire-retarding portion 3 is rotatably provided in the first space, and the fire-retarding portion 3 includes a first fire-retarding element 31 and a second fire-retarding element 32.

The first flame retardant element 31 or the second flame retardant element 32 is designed and manufactured by applying the principle that flames go through a narrow aperture of a heat conductor and are extinguished due to heat loss, and one of the necessary conditions for combustion is to reach a certain temperature, namely, a firing point. Below the ignition point, combustion is stopped. According to this principle, flame propagation can be prevented by only lowering the temperature of the combustion substance below its ignition point. The flame will become a number of fine flames after passing through many fine passages of the firestop element. When the fire-retarding element in the flame arrester is designed, the contact area between the fine flame and the channel wall is expanded as much as possible, heat transfer is enhanced, and the flame temperature is reduced below the ignition point, so that flame spreading is prevented.

The second driving part 4 is disposed between the connection part 11 and the firestop part 3, and is used to drive the firestop part 3 to reciprocally rotate so that the first firestop element 31 or the second firestop element 32 is positioned in the pipe.

The working principle of the embodiment is as follows: through setting up two connecting portions 11 between the pipeline, set up expansion joint 12 between connecting portion 11, be equipped with first drive portion 2 between expansion joint 12 and the connecting portion 11, and including the firestop piece of first firestop element 31 and second firestop element 32, be equipped with second drive portion 4 between firestop portion 3 and the connecting portion 11, in the use after this firestop device installs, first firestop element 31 or second firestop element 32 are located the pipeline middle part, and play the effect of preventing the ignition to the flammable tail gas, when one of them firestop element appears the condition of jam after using a period, make expansion joint 12 shorten and form first space under the drive of first drive portion 2 earlier, at this moment, move firestop portion 3 through second drive portion 4 drive firestop portion 3, until another firestop portion 3 moves to the pipeline middle part, under the effect of first drive portion 2, expansion joint 12 supports between connecting portion 11 and firestop portion 3, satisfy pipeline leakproofness and the condition of firestop element normal work, wait to clean or change firestop portion 3 to the pipeline outside, the circumstances that the relevant production facility shifts out under the removal of the maintenance equipment of the maintenance is not shut down, can be carried out to the maintenance cost is reduced or the cost is changed, the maintenance is reduced.

Further, on the basis of the above embodiment, the fire-retardant device further includes a screw 21, one end of the expansion joint 12 is provided with a snap ring 5 matched with the screw 21, the first driving portion 2 drives the screw 21 to rotate and drives the snap ring 5 to translate along the length direction of the screw 21, the first driving portion 2 drives the screw 21 to rotate, and the screw 21 drives the snap ring 5 to relatively rotate and translate along the length extending direction of the screw 21 due to the stable matching relationship between the screw 21 and the snap ring 5 when rotating, so that one end of the expansion joint 12 moves close to or far away from the other end, and a first space can be formed between the expansion joint 12 and one connecting portion 11.

Further, on the basis of the above embodiment, rubber rings for being clamped by the connecting portion 11 and the expansion joint 12 are respectively arranged on two side end surfaces of the fire-retarding portion 3, so that tightness between the fire-retarding portion 3 and the expansion joint 12 and the connecting portion 11 is maintained, and leakage of waste gas is avoided.

Further, on the basis of the above embodiment, the expansion joint 12 and the fire-retarding portion 3 are provided with the connecting flange 6, the connection stability is improved through the connecting flange 6, the expansion joint 12 is prevented from loosening from occurring between the fire-retarding portion 3 and the pipeline, the specific connecting flange 6 can be fixed through bolts, the connection is more stable and sealed when the connection is not detached, the connection relationship between the connecting flange 6 can be detached when the fire-retarding element is overhauled or detached, and the convenience is improved.

Further, on the basis of the above embodiment, the connecting flange 6 is made of stainless steel or carbon steel, so as to satisfy the structural strength and heat resistance required by the connecting flange 6.

Further, on the basis of the above embodiment, the fire-retarding part 3 is provided with the convex tooth segment 33, the output end of the second driving part 4 is provided with the gear 41 matched with the convex tooth segment 33, under the driving action of the second driving part 4, the gear 41 rotates, the fire-retarding part 3 is driven to rotate around the rotation point through the matching relationship between the gear 41 and the convex tooth segment 33, and the condition of controlling the whole reciprocating motion of the fire-retarding part 3 can be achieved when the second driving part 4 is controlled to drive the gear 41 to rotate forward or rotate reversely.

In order to keep the fire-retarding part 3 rotated to the target position, the fitting accuracy between the gear 41 and the tooth segment 33 can be improved, the movable condition amount between the gear 41 and the tooth segment 33 can be reduced, and the displacement stroke of the fire-retarding part 3 can be controlled by setting the length of the tooth segment 33.

Further, on the basis of the above embodiment, two expansion joints 12 are provided, and between the fire-retarding portion 3 and the two connecting portions 11, respectively, flexibility in adjusting the first space of the expansion joints 12 between the connecting portions 11 is improved, and the screw rod 21 between the first driving portion 2 and the expansion joints 12 can be provided with two opposite threads, so that the two expansion joints 12 can be kept in a state of moving synchronously.

Further, in the above embodiment, the first driving part 2 and the second driving part 4 are rotary motors.

Further, on the basis of the above embodiment, a bracket is provided between the fire-retarding portion 3 and the pipe, and the fire-retarding portion 3 is rotatably connected with the bracket, so that a fulcrum for the rotation of the fire-retarding portion 3 is conveniently erected on the pipe.

Further, on the basis of the above embodiment, the first fire-retarding element 31 and the second fire-retarding element 32 are detachably connected with the fire-retarding portion 3, and a specific connection mode may be a fastening or bolting mode.

It should be appreciated that the terms first, second, etc. are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present utility model.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: the terms "/and" herein describe another associative object relationship, indicating that there may be two relationships, e.g., a/and B, may indicate that: the character "/" herein generally indicates that the associated object is an "or" relationship.

It should be understood that in the description of the present utility model, the terms "upper", "vertical", "inner", "outer", etc. indicate an orientation or a positional relationship in which the disclosed product is conventionally put in use, or an orientation or a positional relationship that is conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It will be further understood that the terms "comprises," "comprising," "includes," "including" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.

In the following description, specific details are provided to provide a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail in order to avoid obscuring the example embodiments.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Claims (10)

1. A firestop device, characterized in that it comprises:

the two connecting parts are respectively used for connecting the pipelines;

the expansion joint is arranged between the two connecting parts;

the first driving part is arranged between one connecting part and the expansion joint and is used for driving the two ends of the expansion joint to move close to each other so as to enable a first space to be formed between the expansion joint and the other connecting part;

the fire-retarding part is rotatably arranged in the first space and comprises a first fire-retarding element and a second fire-retarding element;

and the second driving part is arranged between the connecting part and the fire retarding part and is used for driving the fire retarding part to rotate in a reciprocating way so as to enable the first fire retarding element or the second fire retarding element to be positioned in the pipeline.

2. A fire retardant device as defined in claim 1, wherein: the fire-retardant device further comprises a screw rod, a clamping ring matched with the screw rod is arranged at one end of the expansion joint, and the first driving part drives the screw rod to rotate and drive the clamping ring to translate along the length direction of the screw rod.

3. A fire retardant device as defined in claim 1, wherein: rubber rings used for being clamped by the connecting part and the expansion joint are respectively arranged on the end surfaces of the two sides of the fire retarding part.

4. A fire retardant device as defined in claim 1, wherein: and a connecting flange is arranged between the expansion joint and the fire retarding part.

5. A fire retardant device as defined in claim 4, wherein: the connecting flange is made of stainless steel or carbon steel.

6. A fire retardant device as defined in claim 1, wherein: the fire-retarding part is provided with a convex tooth segment, and the output end of the second driving part is provided with a gear matched with the convex tooth segment.

7. A fire retardant device as defined in claim 1, wherein: the expansion joint is provided with two expansion joints, and the expansion joints are respectively arranged between the fire retarding part and the two connecting parts.

8. A fire retardant device as defined in claim 1, wherein: the first driving part and the second driving part adopt rotating motors.

9. A fire retardant device as defined in claim 1, wherein: and a bracket is arranged between the fire retarding part and the pipeline, and the fire retarding part is rotatably connected with the bracket.

10. A fire retardant device as defined in claim 1, wherein: the first fire-retarding element, the second fire-retarding element and the fire-retarding part are detachably connected.

Images