阅读说明：本技术 一种大补偿量暖通管道施工方法 (Construction method of heating and ventilation pipeline with large compensation amount ) 是由 董鹏 商蒙 王磊 邢玉书 王德安 桑桂军 楚晨昊 于 2021-06-01 设计创作，主要内容包括：本发明公开了一种大补偿量暖通管道施工方法,所述大补偿量暖通管道包括大补偿量的管道补偿器、以及分别设置在管道补偿器两端的暖通管道,所述管道补偿器的两端均固定设置有连接盘,暖通管道靠近管道补偿器的一端固定设置有法兰盘。本发明中,可以方便快速的将暖通管道与管道补偿器进行稳固的安装固定,以防后续因螺纹松脱而导致暖通管道与管道补偿器的连接处松动泄漏的情形发生,从而有利于保障暖通管道在后续补偿过程中的正常使用,同时还可以使得补偿过程中非常平稳,避免以往因补偿动作过大而造成使用过程中的稳定性较差的弊端,且结构简单,便于人们操作使用。(The invention discloses a construction method of a large-compensation heating and ventilation pipeline, wherein the large-compensation heating and ventilation pipeline comprises a large-compensation pipeline compensator and heating and ventilation pipelines respectively arranged at two ends of the pipeline compensator, connecting discs are fixedly arranged at two ends of the pipeline compensator, and a flange plate is fixedly arranged at one end, close to the pipeline compensator, of the heating and ventilation pipeline. According to the invention, the heating and ventilation pipeline and the pipeline compensator can be conveniently and rapidly and stably installed and fixed, so that the situation that the joint of the heating and ventilation pipeline and the pipeline compensator is loosened and leaked due to the loosening of the subsequent threads is prevented, the normal use of the heating and ventilation pipeline in the subsequent compensation process is favorably ensured, meanwhile, the compensation process is very stable, the defect of poor stability in the use process due to the overlarge compensation action in the past is avoided, the structure is simple, and the operation and the use of people are convenient.)

1. The large-compensation heating and ventilation pipeline construction method is characterized in that the large-compensation heating and ventilation pipeline comprises a large-compensation pipeline compensator (2) and heating and ventilation pipelines (1) respectively arranged at two ends of the pipeline compensator (2), connecting discs (201) are fixedly arranged at two ends of the pipeline compensator (2), a flange plate (101) is fixedly arranged at one end, close to the pipeline compensator (2), of each heating and ventilation pipeline (1), and the connecting discs (201) and the flange plate (101) are fixedly connected through fastening bolts (3);

the circumference of each of the two connecting discs (201) is fixedly connected with connecting blocks (202) which are symmetrically arranged, the two connecting blocks (202) are movably connected with protective pull rods (203), the ends, close to each other, of the two protective pull rods (203) are movably connected through the same telescopic head (204), and the ends, far away from each other, of the two protective pull rods (203) respectively penetrate through the outer sides of the two connecting discs (201) and are connected with connecting nuts (205) through threads;

a telescopic movable cavity (2041) is arranged on the telescopic head (204), one ends of the two protection pull rods (203), which are close to each other, extend into the telescopic movable cavity (2041) in a sliding manner and are fixedly connected with movable blocks (2042) respectively, the two movable blocks (2042) are fixedly connected through a first telescopic spring (2045), and a second telescopic spring (2043) sleeved on the protection pull rods (203) is fixedly connected between the movable blocks (2042) and the side walls of the telescopic movable cavity (2041);

the construction method comprises the following steps:

the method comprises the following steps: firstly, sleeving an elastic spring (303) on a fastening bolt (3), and moving the elastic spring (303) to be in contact with a bolt head (302);

step two: then, the bolt head (302) is held by hand to enable the fastening bolt (3) to sequentially penetrate through the annular groove (304), the first through hole (305) and the second through hole (306) and penetrate to the outer side of the flange plate (101);

step three: then, the locking nut (301) is rotationally sleeved on the fastening bolt (3);

step four: finally, the locking nut (301) and the fastening bolt (3) are locked in a threaded mode through a wrench tool; finally, the flange plate (101) fixed on the heating and ventilation pipeline (1) is connected and fixed with the connecting disc (201) fixed on the pipeline compensator (2).

2. The construction method of the heating and ventilation pipeline with the large compensation amount according to claim 1, wherein one end of the fastening bolt (3) penetrates through the inner side of the connecting plate (201) and is fixedly connected with a bolt head (302), and the other end of the fastening bolt (3) penetrates through the outer side of the flange plate (101) and is connected with a locking nut (301) through threads.

3. The construction method of the heating and ventilating pipeline with large compensation amount according to claim 1, wherein a first through hole (305) is formed in the connecting disc (201), a second through hole (306) is formed in the flange plate (101), and the fastening bolt (3) is movably inserted through the first through hole (305) and the second through hole (306).

4. The construction method of the heating and ventilating pipeline with large compensation amount according to claim 1, wherein an annular groove (304) is formed on the inner circumferential wall of one side of the second through hole (306) close to the bolt head (302), an elastic spring (303) movably sleeved on the fastening bolt (3) is arranged in the annular groove (304), and two ends of the elastic spring (303) respectively abut against the side wall of the annular groove (304) and the inner side of the bolt head (302).

5. The construction method of the heating and ventilation pipeline with the large compensation amount according to claim 1, wherein the two protection pull rods (203) are provided with external threads (206) on the circumferences of the ends far away from each other, and the protection pull rods (203) are in threaded connection with the internal threads on the inner wall of the connecting nut (205) through the external threads (306).

6. The heating and ventilation pipeline construction method with large compensation amount according to claim 1, wherein a through hole is formed on the connecting block (202), and the protection pull rod (203) movably penetrates through the through hole.

7. The construction method of the heating and ventilation pipeline with large compensation amount according to claim 1, wherein the two movable blocks (2042) are symmetrically provided with sliding blocks (2044), the inner wall of the telescopic movable cavity (2041) is symmetrically provided with sliding grooves, and the sliding blocks (2044) are slidably mounted in the sliding grooves.

8. The large compensation heating and ventilation pipeline construction method according to claim 1, wherein the pipeline compensator (2) is a metal corrugated compensator or a non-metal compensator; and sealing rings are fixedly bonded on the side, close to each other, of the connecting disc (201) and the flange plate (101).

Technical Field

The invention relates to the technical field of pipeline construction, in particular to a large-compensation heating and ventilation pipeline construction method.

Background

The thickness and specification of the heating and ventilation pipeline can be changed according to requirements, and usually, when the heating and ventilation pipeline is connected, two ends of the air pipe are always externally connected with accessories (such as elbows and reducing pipes). Generally, the two ends of the heating and ventilating pipeline are not provided with grooves and are provided with sealing rings. The heating and ventilation pipeline has a very wide application range. A purifying system air feeding and returning pipe, a central air conditioning ventilation pipe, an industrial air feeding and exhausting ventilation pipe, an environmental protection system air suction and exhaust pipe, a mine gas drainage pipe, a mine rubberized cloth air duct and the like.

The pipe compensator is also called as a telescopic device or a telescopic joint or an expansion joint and is mainly used for compensating expansion and contraction caused by temperature change of a pipe. Thermal stresses will develop in the pipe if the pipe is not fully free to expand or contract when the temperature changes. This stress must be taken into account in the pipe design, otherwise it may lead to cracking of the pipe, affecting the normal production run. As an important component of pipeline engineering, the compensator plays an important role in ensuring long-term normal operation of the pipeline. The pipeline compensator is divided into a plurality of categories such as a metal corrugated compensator, a nonmetal compensator, a sleeve compensator, a square compensator and the like. The metal corrugated compensator and the nonmetal compensator are common in use.

As is known, the general heating and ventilation pipeline compensation amount needs to be installed only if the compensation amount is available, and a compensator needs to be installed when the pipeline length is about 50-100. Because of the variety of compensators and the amount of compensation according to the deformation of each pipe section, it is very important to correctly select the compensator, so that the trend of the pipeline and the design of a supporting system (including a fixed pipe frame, a guide sliding pipe frame and the like) are fully considered and the shape and the configuration of the compensator are comprehensively considered in the overall design of the pipeline system, so as to achieve a good combination of safety, reasonableness, applicability and economy.

However, the existing heating and ventilation pipeline with large compensation amount generally wastes time and labor during construction and installation, and is troublesome in the whole operation process, and the compensator is usually installed between two pipeline connectors, so that the pipeline is often loosened and leaked due to instable installation of the compensator after installation and connection, and further the subsequent normal use of the heating and ventilation pipeline is influenced; and the stability in the use process is poor due to unstable compensation after installation, so that a large compensation quantity heating and ventilation pipeline construction method is provided for solving the problems.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a large-compensation heating and ventilation pipeline construction method.

The invention provides a construction method of a large-compensation heating and ventilation pipeline, wherein the large-compensation heating and ventilation pipeline comprises a large-compensation pipeline compensator and heating and ventilation pipelines respectively arranged at two ends of the pipeline compensator, connecting discs are fixedly arranged at two ends of the pipeline compensator, a flange plate is fixedly arranged at one end, close to the pipeline compensator, of the heating and ventilation pipeline, and the connecting discs and the flange plate are fixedly connected through fastening bolts;

the circumference of each of the two connecting discs is fixedly connected with symmetrically arranged connecting blocks, the two connecting blocks are movably connected with protective pull rods, the ends, close to each other, of the two protective pull rods are movably connected through the same telescopic head, and the ends, far away from each other, of the two protective pull rods respectively penetrate through the outer sides of the two connecting discs and are connected with connecting nuts through threads;

the telescopic head is provided with a telescopic movable cavity, one ends of the two protection pull rods, which are close to each other, extend into the telescopic movable cavity in a sliding manner and are fixedly connected with movable blocks respectively, the two movable blocks are fixedly connected through a first telescopic spring, and a second telescopic spring sleeved on the protection pull rod is fixedly connected between the movable blocks and the side wall of the telescopic movable cavity;

the construction method comprises the following steps:

the method comprises the following steps: firstly, sleeving an elastic spring on a fastening bolt, and moving the elastic spring to be in contact with the bolt head;

step two: then, the bolt head is held by hands to enable the fastening bolt to sequentially penetrate through the annular groove, the first through hole and the second through hole and penetrate to the outer side of the flange plate;

step three: then, the locking nut is rotationally sleeved on the fastening bolt;

step four: finally, the locking nut and the fastening bolt are locked in a threaded mode through a wrench tool; and finally, connecting and fixing the flange plate fixed on the heating and ventilating pipeline and the connecting disc fixed on the pipeline compensator.

Preferably, one end of the fastening bolt penetrates through the inner side of the connecting disc and is fixedly connected with a bolt head, and the other end of the fastening bolt penetrates through the outer side of the flange plate and is connected with a locking nut through threads.

Preferably, the connecting disc is provided with a first through hole, the flange plate is provided with a second through hole, and the fastening bolt movably penetrates through the first through hole and the second through hole.

Preferably, an annular groove is formed in the circumferential inner wall of one side of the second through hole, which is close to the bolt head, an elastic spring movably sleeved on the fastening bolt is arranged in the annular groove, and two ends of the elastic spring are respectively abutted against the side wall of the annular groove and the inner side of the bolt head.

Preferably, the circumference of one end of each protection pull rod, which is far away from each other, is provided with an external thread, and the protection pull rods are in threaded connection with the internal threads on the inner wall of the connecting nut through the external threads.

Preferably, the connecting block is provided with a through hole, and the protective pull rod movably penetrates through the through hole.

Preferably, the two movable blocks are symmetrically provided with sliding blocks, the inner wall of the telescopic movable cavity is symmetrically provided with sliding grooves, and the sliding blocks are slidably mounted in the sliding grooves.

Preferably, the pipe compensator is a metal corrugated compensator or a non-metal compensator; and a sealing ring is fixedly bonded on one side of the connecting disc, which is close to the flange plate.

The invention has the beneficial effects that:

1. the construction method can conveniently and quickly install and fix the heating and ventilation pipeline and the pipeline compensator, and after installation, the elastic spring is compressed and generates the reverse thrust action of elasticity, so that the thread engagement between the locking nut and the fastening bolt can be tighter through the elasticity action of the elastic spring, the threaded connection between the locking nut and the fastening bolt is firmer, and the situation that the joint of the heating and ventilation pipeline and the pipeline compensator is loosened and leaked due to the loosening of the thread in the follow-up process is prevented, thereby being beneficial to ensuring the normal use of the heating and ventilation pipeline in the follow-up compensation process, having simple structure and convenient operation, and facilitating the construction and installation between the heating and ventilation pipeline and the pipeline compensator for people.

2. When the pipeline compensator is used for compensation and extension, the movable block can perform extension and retraction movement in the extension and retraction movable cavity; when the two movable blocks contract oppositely, the first telescopic spring can be compressed and the second telescopic spring can be stretched, so that when compensation is not needed, the first telescopic spring and the second telescopic spring can be slowly abutted and recovered, the resetting process is very gentle, and the resetting after contraction is very stable; similarly, when two movable blocks keep away from each other when tensile, first expanding spring also can slowly offset the recovery with the second expanding spring, equally can be so that reset in-process very mild, steady, avoid in the past because of the compensating action too big stability relatively poor drawback in the use that causes.

In conclusion, the construction method for the heating and ventilation pipeline with the large compensation amount can conveniently and quickly install and fix the heating and ventilation pipeline and the pipeline compensator, is very stable after installation, and prevents the situation that the joint of the heating and ventilation pipeline and the pipeline compensator is loosened and leaked due to loosening of threads in the follow-up process, so that the normal use of the heating and ventilation pipeline in the follow-up compensation process is guaranteed, meanwhile, the compensation process is very stable, the defect that the stability in the use process is poor due to overlarge compensation action in the past is avoided, the structure is simple, and the construction and installation between the heating and ventilation pipeline and the pipeline compensator are convenient for people.

Drawings

FIG. 1 is a schematic structural diagram of a large compensation heating and ventilation pipeline construction method provided by the invention;

FIG. 2 is a schematic view of the heating and ventilation pipe and the pipe compensator in an uninstalled state;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

FIG. 4 is an enlarged schematic view of portion B of FIG. 1;

fig. 5 is a schematic structural view of the protection rod and the telescopic head of the present invention.

In the figure: the heating and ventilation pipeline comprises a heating and ventilation pipeline 1, a flange plate 101, a pipeline compensator 2, a connecting disc 201, a connecting block 202, a protection pull rod 203, a telescopic head 204, a telescopic movable cavity 2041, a movable block 2042, a second telescopic spring 2043, a sliding block 2044, a first telescopic spring 2045, a connecting nut 205, an external thread 206, a fastening bolt 3, a locking nut 301, a bolt head 302, an elastic spring 303, an annular groove 304, a first through hole 305 and a second through hole 306.

Detailed Description

The present invention will be further described with reference to the following specific examples.

Examples

Referring to fig. 1 to 5, the embodiment provides a construction method of a large-compensation heating and ventilation pipeline, where the large-compensation heating and ventilation pipeline includes a large-compensation pipeline compensator 2 and heating and ventilation pipelines 1 respectively arranged at two ends of the pipeline compensator 2, two ends of the pipeline compensator 2 are both fixedly provided with connecting discs 201, one end of the heating and ventilation pipeline 1 close to the pipeline compensator 2 is fixedly provided with a flange plate 101, and the connecting disc 201 and the flange plate 101 are fixedly connected through fastening bolts 3;

the circumference of each of the two connecting discs 201 is fixedly connected with connecting blocks 202 which are symmetrically arranged, the two connecting blocks 202 are movably connected with protective pull rods 203, the ends, close to each other, of the two protective pull rods 203 are movably connected through the same telescopic head 204, and the ends, far away from each other, of the two protective pull rods 203 penetrate through the outer sides of the two connecting discs 201 respectively and are connected with connecting nuts 205 through threads;

a telescopic movable cavity 2041 is arranged on the telescopic head 204, the mutually adjacent ends of the two protection pull rods 203 extend into the telescopic movable cavity 2041 in a sliding manner and are respectively and fixedly connected with movable blocks 2042, the two movable blocks 2042 are fixedly connected through a first telescopic spring 2045, and a second telescopic spring 2043 sleeved on the protection pull rods 203 is fixedly connected between the movable block 2042 and the side wall of the telescopic movable cavity 2041;

one end of the fastening bolt 3 penetrates through the inner side of the connecting disc 201 and is fixedly connected with a bolt head 302, and the other end of the fastening bolt 3 penetrates through the outer side of the flange plate 101 and is connected with a locking nut 301 through threads.

The connecting disc 201 is provided with a first through hole 305, the flange plate 101 is provided with a second through hole 306, and the fastening bolt 3 movably penetrates through the first through hole 305 and the second through hole 306.

An annular groove 304 is formed in the circumferential inner wall of one side of the second through hole 306 close to the bolt head 302, an elastic spring 303 movably sleeved on the fastening bolt 3 is arranged in the annular groove 304, and two ends of the elastic spring 303 respectively abut against the side wall of the annular groove 304 and the inner side of the bolt head 302.

Wherein, the circumference of the end of two protection pull rods 203 far away from each other all is provided with external screw thread 206, and protection pull rod 203 passes through external screw thread 306 and the internal thread threaded connection on the coupling nut 205 inner wall.

Wherein, a through hole is arranged on the connecting block 202, and the protective pull rod 203 is movably penetrated through the through hole.

Wherein, the two movable blocks 2042 are symmetrically provided with sliding blocks 2044, the inner walls of the telescopic movable cavities 2041 are symmetrically provided with sliding grooves, and the sliding blocks 2044 are slidably mounted in the sliding grooves.

The pipeline compensator 2 is specifically any one of a metal corrugated compensator and a nonmetal compensator; and sealing rings are fixedly bonded on the sides, close to each other, of the connecting disc 201 and the flange plate 101.

In the embodiment, the construction method for installing the heating and ventilation pipeline 1 and the pipeline compensator 2 comprises the following steps:

the method comprises the following steps: firstly, sleeving the elastic spring 303 on the fastening bolt 3, and moving the elastic spring 303 until the bolt head 302 is contacted;

step two: then, the bolt head 302 is held by hand to enable the fastening bolt 3 to sequentially pass through the annular groove 304, the first through hole 305 and the second through hole 306 and penetrate to the outer side of the flange plate 101;

step three: then the locking nut 301 is screwed and sleeved on the fastening bolt 3;

step four: finally, the locking nut 301 and the fastening bolt 3 are locked by a wrench tool; finally, the flange plate 101 fixed on the heating pipeline 1 is connected and fixed with the connecting plate 201 fixed on the pipeline compensator 2.

In conclusion, by the construction method, the heating and ventilation pipeline 1 and the pipeline compensator 2 can be conveniently and quickly installed and fixed, after installation, the elastic spring 303 is compressed and generates a thrust reaction of elasticity, so that the locking nut 301 and the fastening bolt 3 are engaged with each other through the elasticity of the elastic spring 303, the threaded connection between the locking nut 301 and the fastening bolt 3 is firmer, the situation that the joint of the heating and ventilation pipeline 1 and the pipeline compensator 2 is loosened and leaked due to loosening and loosening of the threads in the follow-up process is prevented, normal use of the heating and ventilation pipeline in the follow-up compensation process is guaranteed, the structure is simple, operation is convenient, and people can conveniently install and construct the heating and ventilation pipeline 1 and the pipeline compensator 2.

In this embodiment, after the pipeline compensator 2 is installed, when the pipeline compensator 2 extends and retracts in the compensation process, the pipeline compensator 2 also makes the connection blocks 202 at the two ends move away from or toward each other, and when the two connection blocks 202 move, the two protection rods 203 and the movable block 2042 also move in the telescopic movable cavity 2041; when the two movable blocks 2042 contract in opposite directions, the first expansion spring 2045 is compressed and stretches the second expansion spring 2043, so that when compensation is not needed, the first expansion spring 2045 and the second expansion spring 2043 slowly abut against and recover, the resetting process is very gentle, and the resetting after contraction is very stable; similarly, when the two movable blocks 2042 are away from each other and stretched, the first expansion spring 2045 is stretched and the second expansion spring 2043 is compressed, so that when compensation is not needed, the first expansion spring 2045 and the second expansion spring 2043 slowly abut against each other and recover, and the resetting process can be very smooth and stable; finally, the compensation process can be very stable after installation, the defect of poor stability in the use process caused by overlarge compensation action in the prior art is overcome, and the compensation device is simple in structure and convenient for people to operate and use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.