An assembling device and method for a combined heat and power unit

Abstract

The present application relates to the field of cogeneration unit, and disclose a kind of assembly device and assembly method for cogeneration unit, effectively solve the problem that steam is easy to produce outward pressure to the inner wall of pipeline when transporting steam with higher temperature in pipeline at present, cause pipeline damage, including pipeline body, the outer side of the pipeline body is equipped with pipeline hoisting support assembly, pipeline hoisting support assembly includes the end support ring of symmetrical installation in the outer side of the both ends of pipeline body, the top of end support ring is equipped with first lifting rod, the outer side of the middle of pipeline body is equipped with middle support ring, the top of middle support ring is equipped with second lifting rod, the present application, by the end support ring and middle support ring of being set in the outer side of pipeline body, first lifting rod and second lifting rod can be fixedly installed in roof position, so that end support ring and middle support ring produce support force to pipeline body, so as to improve the installation stability of pipeline body.

Description

Technical Field

[0001] This invention belongs to the field of combined heat and power (CHP) units, specifically an assembly device and assembly method for CHP units. Background Technology

[0002] The construction of combined heat and power (CHP) projects achieves grid-source integration, unified heat source, unified management, energy conservation and emission reduction, improved heating quality and safety, avoids pollutant emissions from numerous small coal-fired boilers, protects the environment, saves energy, and improves air quality. The selection of seamless steel pipes in process piping installation must ensure the rationality and scientific nature of the piping installation process, effectively improving thermal efficiency, reducing production costs, improving the working environment, reducing the probability of safety accidents, ensuring the personal safety of workers, and improving the economic benefits of the enterprise. Power plant boilers use steam to drive turbine units for power generation. A large amount of waste heat remains after the steam exits the turbine, which is released into the atmosphere and cannot be effectively utilized. Therefore, the thermal efficiency of thermal power plants is usually less than 45%. A CHP system can effectively utilize this waste heat for power generation or heating. This system simultaneously produces electricity and heat, increasing energy utilization to over 80%. A gas-fired CHP system is a combined heat and power supply system that utilizes a gas-fired boiler and a heating turbine. This system not only has energy-saving and environmental protection characteristics but also allows for the cascade utilization of energy, improving resource utilization. In the construction of combined heat and power (CHP) projects in power plants, the installation of process piping is its most fundamental component. Therefore, the assembly between piping and the unit is crucial in CHP units; however, the following shortcomings still exist:

[0003] Combined heat and power (CHP) process pipelines mainly transport steam. Their most prominent characteristic is significant thermal expansion and contraction. When transporting high-temperature steam in the pipeline, the steam pressure is high, which can easily exert outward pressure on the inner wall of the pipeline, causing pipeline damage and thus reducing energy-saving effects. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an assembly device and assembly method for a combined heat and power unit, which effectively solves the problem that when high-temperature steam is transported in pipelines, the steam easily exerts outward pressure on the inner wall of the pipeline, causing pipeline damage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an assembly device and assembly method for a combined heat and power unit, comprising a pipe body, wherein a pipe hoisting support assembly is installed on the outer side of the pipe body;

[0006] The pipeline hoisting support assembly includes end support rings symmetrically installed on the outer sides of both ends of the pipeline body. A first lifting rod is installed at the top of the end support ring. A middle support ring is installed on the outer side of the middle part of the pipeline body. A second lifting rod is installed at the top of the middle support ring. The top of the second lifting rod is flush with the top of the first lifting rod. Both the top of the second lifting rod and the top of the first lifting rod are installed on the crane. A pipeline reinforcement protection assembly is installed on the end support ring.

[0007] Preferably, the pipeline reinforcement protection component includes a first slot formed at equal angles on the outer wall of the pipeline body, the first slot being located on the side of the end support ring near the middle support ring, a second slot formed at equal angles on the outer wall of the middle support ring, and two sets of second slots symmetrically arranged on both sides of the second hanger, an equipment connection unit installed on the end support ring, a pipeline connection unit installed on the end support ring, and a pipeline protection clamping unit installed on the end support ring.

[0008] Preferably, the unit connection unit includes an inner cavity formed inside the end support ring. A suction cup is installed at an equal angle on the side of the end support ring away from the middle support ring. The suction cup is connected to the inside of the inner cavity. The side of the suction cup away from the middle support ring is flush with the end of the pipe body. An outer pipe is installed on the front of the end support ring. The outer pipe is connected to the inner cavity. An exhaust pipe is installed on one side of the outer pipe. A piston is movably installed inside the outer pipe. The outer wall of the piston is in close contact with the inner wall of the outer pipe. A limiting groove is formed on the side of the piston away from the end support ring. A limiting block is rotatably connected inside the limiting groove. A moving screw is installed on the side of the limiting block away from the piston. The moving screw is threadedly connected to the end of the outer pipe away from the end support ring.

[0009] Preferably, the pipe connection unit includes a fixed cylinder installed at an equal angle on the side of the end support ring near the middle support ring. The fixed cylinder has a movable groove inside, and a movable block is slidably connected inside the movable groove. A locking rod is installed on the side of the movable block near the pipe body. One end of the locking rod extends through to the outside of the movable groove and engages with the first locking groove. A pull rod is installed on the side of the movable block away from the pipe body. The pull rod extends through to the outside of the movable groove. A first spring is installed on the end of the movable block away from the locking rod. One end of the first spring is fixedly connected to the inner wall of the movable groove.

[0010] Preferably, the pipe protection clamping unit includes a rotating head installed at equal angles on the outside of the end support ring. The number of rotating heads is the same as the number of second slots. A rotating seat is rotatably connected to the rotating head. A protective side plate is installed on the rotating seat. A movable groove is opened inside the protective side plate. The movable groove extends to the end of the rotating head near the middle support ring. A telescopic plate is slidably installed inside the movable groove. A second spring is symmetrically installed at the end of the telescopic plate away from the middle support ring. One end of the second spring is fixedly connected to the inner wall of the movable groove. A protective side plate fixing module is installed at the end of the telescopic plate near the middle support ring. Pipe outer wall clamping modules are installed at equal intervals on the side of the protective side plate near the pipe body.

[0011] Preferably, the protective side plate fixing module includes an end block installed on the telescopic plate near the middle support ring. The end block has a through groove inside, and a retaining plate is slidably installed inside the through groove. The retaining plate is engaged with the inside of the second retaining groove, and a limit plate is installed on the end of the retaining plate away from the middle support ring.

[0012] Preferably, the top and bottom of the card plate are symmetrically provided with snap-fit ​​grooves, and the top and bottom of the end block are symmetrically provided with mounting grooves. The mounting grooves extend into the interior of the through groove. A snap-fit ​​rod is movably installed inside the mounting groove. The snap-fit ​​rod snaps into the interior of the snap-fit ​​groove. A pull plate is installed at the end of the snap-fit ​​rod away from the card plate. A third spring is installed at the end of the pull plate near the end block. One end of the third spring is fixedly connected to the end block.

[0013] Preferably, the pipe outer wall clamping module includes a movable cylinder equidistantly installed on the protective side plate near the pipe body. A movable block is slidably installed inside the movable cylinder. A connecting rod is installed on the side near the pipe body. A pressure plate is installed at one end of the connecting rod. A fourth spring is installed on the side of the movable block away from the pipe body. One end of the fourth spring is fixedly connected to the inner wall of the movable cylinder.

[0014] Preferably, the pressure plate is arranged in an arc shape, and the arc of the pressure plate is the same as the arc of the outer wall of the pipe body. The fourth spring is in a compressed state, and the pressure plate is in close contact with the outer wall of the pipe body.

[0015] Preferably, an assembly method for an assembly device for a combined heat and power unit includes the following steps:

[0016] 1. Place two end support rings and one middle support ring on the outside of the pipe body, then use hoisting equipment to hoist the pipe body between the two units, and then weld the two ends of the pipe body to the units.

[0017] 2. Move the two end support rings to both ends of the pipe body respectively, and engage them with the first slot through the clamp rod, so that the two end support rings are fixed at both ends of the pipe body. Then, use the negative pressure pump to make the suction cups on the end support rings adsorb and fix them to the unit equipment.

[0018] 3. Move the middle support ring to the middle of the pipe body, and then rotate the protective side plates on the end support rings on both sides toward the middle support ring until the protective side plates are parallel to the pipe body. Then, use the clamping plate to engage with the second clamping groove to fix the protective side plates to the middle support ring. At this time, the pressure plate presses against the outer wall of the pipe body.

[0019] Fourth, at this time, the first hanger on the end support ring and the second hanger on the middle support ring are both set upwards. Then, the first hanger and the second hanger are extended upwards until they are fixedly installed on the roof, so that the end support ring and the middle support ring can support the pipe body.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) In this invention, by sleeved the end support ring and the middle support ring on the outside of the pipe body, the pipe body can be hoisted between two units of equipment during transportation, which facilitates the welding between the pipe body and the unit of equipment. At the same time, after the pipe body is installed, the first and second lifting rods can be fixedly installed on the roof position, so that the end support ring and the middle support ring can generate a supporting force on the pipe body, thereby improving the installation stability of the pipe body.

[0022] (2) The invention moves the two end support rings to both ends of the pipe body and then engages the end support rings with the first slot on the outer wall of the pipe body through the clamp rod, thereby fixing the end support rings on the pipe body. At the same time, a vacuum is formed between the suction cup and the outer wall of the unit equipment by the negative pressure pump, so that the end support rings are fixed to the unit equipment. This further improves the connection strength between the pipe body and the unit equipment through the end support rings, thereby improving the installation stability of the pipe body.

[0023] (3) The invention adjusts the middle support ring to the middle of the pipe body, then rotates the protective side plate on the end support ring toward the second slot until it is parallel to the pipe body, and then fixes one end of the telescopic plate in the second slot. When fixing, the telescopic plate needs to be pulled toward the middle support ring so that the second spring is stretched. Then, under the elastic force of the second spring, a pulling force is generated on the end support ring. The end support ring is fixed to the unit equipment, thereby generating a pulling force on the unit equipment toward the pipe body, thereby pressing the pipe body and the unit equipment together, thereby further improving the connection strength of the pipe body.

[0024] (4) The invention rotates the protective side plate toward the pipe body until the protective side plate is parallel to the pipe body, so that the pressure plate contacts the outer wall of the pipe body. At this time, the fourth spring is in a compressed state, while the protective side plate is fixed, so that the pressure plate generates inward pressure on the outer wall of the pipe body, thereby offsetting the outward pressure generated by the hot air when it flows through the pipe body, thus protecting the pipe body. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the assembly device for the cogeneration unit of the present invention;

[0028] Figure 2 This is a schematic diagram of the pipe hoisting support assembly structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the pipe reinforcement and protection component structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the connection unit structure of the generator set of the present invention;

[0031] Figure 5 This is a schematic diagram of the pipe connection unit structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the pipe protection and clamping unit structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the protective side plate fixing module structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the pipe outer wall clamping module structure of the present invention;

[0035] In the diagram: 1. Pipe body; 2. Pipe hoisting support assembly; 201. End support ring; 202. First lifting rod; 203. Middle support ring; 204. Second lifting rod; 3. Pipe reinforcement and protection assembly; 301. First slot; 302. Second slot; 303. Unit equipment connection unit; 3031. Inner cavity; 3032. Suction cup; 3033. Outer pipe; 3034. Exhaust pipe; 3035. Piston; 3036. Limiting groove; 3037. Limiting block; 3038. Moving screw; 304. Pipe connection unit; 3041. Fixed cylinder; 3042. Moving groove; 3043. Moving block; 3044. Locking rod; 3045. Pull rod; 3046. First spring Spring; 305, Pipe protection clamping unit; 3051, Rotary head; 3052, Protective side plate; 3053, Rotary seat; 3054, Movable groove; 3055, Telescopic plate; 3056, Second spring; 3057, Protective side plate fixing module; 30571, End block; 30572, Through groove; 30573, Clamping plate; 30574, Limiting plate; 30575, Snap-fit ​​groove; 30576, Mounting groove; 30577, Snap-fit ​​rod; 30578, Pull plate; 30579, Third spring; 3058, Pipe outer wall clamping module; 30581, Movable cylinder; 30582, Movable block; 30583, Connecting rod; 30584, Pressure plate; 30585, Fourth spring. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Example 1, by Figures 1-8 The present invention includes a pipe body 1, a pipe hoisting support assembly 2 installed on the outer side of the pipe body 1, the pipe hoisting support assembly 2 including end support rings 201 symmetrically installed on the outer sides of both ends of the pipe body 1, a first lifting rod 202 installed at the top of the end support rings 201, a middle support ring 203 installed on the outer side of the middle part of the pipe body 1, a second lifting rod 204 installed at the top of the middle support ring 203, the top of the second lifting rod 204 being flush with the top of the first lifting rod 202, and both the top of the second lifting rod 204 and the top of the first lifting rod 202 being installed on a crane, and a pipe reinforcement protection assembly 3 installed on the end support rings 201.

[0038] The pipeline reinforcement protection component 3 includes a first slot 301 that is opened at equal angles on the outer wall of the pipeline body 1. The first slot 301 is located on the side of the end support ring 201 near the middle support ring 203. A second slot 302 is opened at equal angles on the outer wall of the middle support ring 203, and the two sets of second slots 302 are symmetrically arranged on both sides of the second hanger 204. An equipment connection unit 303 is installed on the end support ring 201, a pipeline connection unit 304 is installed on the end support ring 201, and a pipeline protection clamping unit 305 is installed on the end support ring 201.

[0039] The unit equipment connection unit 303 includes an inner cavity 3031 formed inside the end support ring 201. A suction cup 3032 is installed at an equal angle on the side of the end support ring 201 away from the middle support ring 203. The suction cup 3032 is connected to the inside of the inner cavity 3031. The side of the suction cup 3032 away from the middle support ring 203 is flush with the end of the pipe body 1. An external pipe 3033 is installed on the front of the end support ring 201. The external pipe 3033 is connected to the inner cavity 3031. A drain is installed on one side of the external pipe 3033. The trachea 3034 and the outer tube 3033 are equipped with a piston 3035. The outer wall of the piston 3035 is in close contact with the inner wall of the outer tube 3033. A limiting groove 3036 is formed on the side of the piston 3035 away from the end support ring 201. A limiting block 3037 is rotatably connected inside the limiting groove 3036. A moving screw 3038 is installed on the side of the limiting block 3037 away from the piston 3035. The moving screw 3038 is threadedly connected to the end of the outer tube 3033 away from the end support ring 201.

[0040] The pipe connection unit 304 includes a fixed cylinder 3041 that is installed at an equal angle on the side of the end support ring 201 near the middle support ring 203. The fixed cylinder 3041 has a moving groove 3042 inside. A moving block 3043 is slidably connected inside the moving groove 3042. A locking rod 3044 is installed on the side of the moving block 3043 near the pipe body 1. One end of the locking rod 3044 extends through to the outside of the moving groove 3042 and engages with the first locking groove 301. A pull rod 3045 is installed on the side of the moving block 3043 away from the pipe body 1. The pull rod 3045 extends through to the outside of the moving groove 3042. A first spring 3046 is installed on the end of the moving block 3043 away from the locking rod 3044. One end of the first spring 3046 is fixedly connected to the inner wall of the moving groove 3042.

[0041] The pipeline protection and clamping unit 305 includes a rotating head 3051 installed at equal angles on the outside of the end support ring 201. The number of rotating heads 3051 is the same as the number of second slots 302. A rotating seat 3053 is rotatably connected to the rotating head 3051. A protective side plate 3052 is installed on the rotating seat 3053. A movable groove 3054 is opened inside the protective side plate 3052. The movable groove 3054 extends to one end of the rotating head 3051 near the middle support ring 203. A telescopic plate 3055 is slidably installed inside the movable groove 3054. A second spring 3056 is symmetrically installed on one end of the telescopic plate 3055 away from the middle support ring 203. One end of the second spring 3056 is fixedly connected to the inner wall of the movable groove 3054. A protective side plate fixing module 3057 is installed on one end of the telescopic plate 3055 near the middle support ring 203. A pipeline outer wall clamping module 3058 is installed at equal intervals on one side of the protective side plate 3052 near the pipeline body 1.

[0042] The protective side panel fixing module 3057 includes an end block 30571 installed on one end of the telescopic plate 3055 near the central support ring 203. A through groove 30572 is formed inside the end block 30571, and a retaining plate 30573 is slidably installed inside the through groove 30572. The retaining plate 30573 is engaged with the inside of the second retaining groove 302. A limiting plate 30574 is installed at the end of the retaining plate 30573 away from the central support ring 203. Retaining grooves 30575 are symmetrically formed at the top and bottom ends of the retaining plate 30573. The top and bottom ends are symmetrically provided with mounting grooves 30576, which extend through the interior of the through groove 30572. A snap-fit ​​rod 30577 is movably installed inside the mounting groove 30576. The snap-fit ​​rod 30577 is snapped into the interior of the snap-fit ​​groove 30575. A pull plate 30578 is installed at the end of the snap-fit ​​rod 30577 away from the snap plate 30573. A third spring 30579 is installed at the end of the pull plate 30578 near the end block 30571. One end of the third spring 30579 is fixedly connected to the end block 30571.

[0043] The pipe outer wall clamping module 3058 includes a movable cylinder 30581 equidistantly installed on the protective side plate 3052 near the pipe body 1. A movable block 30582 is slidably installed inside the movable cylinder 30581. A connecting rod 30583 is installed on the side of the 30582 near the pipe body 1. A pressure plate 30584 is installed at one end of the connecting rod 30583. A fourth spring 30585 is installed on the side of the movable block 30582 away from the pipe body 1. One end of the fourth spring 30585 is fixedly connected to the inner wall of the movable cylinder 30581. The pressure plate 30584 is arc-shaped, and the arc of the pressure plate 30584 is the same as the arc of the outer wall of the pipe body 1. The fourth spring 30585 is in a compressed state, and the pressure plate 30584 is in close contact with the outer wall of the pipe body 1.

[0044] Working principle: During the installation of the pipe body 1, two end support rings 201 and one middle support ring 203 are fitted onto the outer side of the pipe body 1, with the middle support ring 203 positioned between the two end support rings 201. The two end support rings 201 are arranged opposite each other. The first lifting rod 202 and the second lifting rod 204 are both set upwards and installed on the hoisting equipment. Subsequently, the pipe body 1 is transported to the location between the two units of equipment where the pipe body 1 needs to be installed using the hoisting equipment. The two ends of the pipe body 1 are brought into contact with the two unit equipment. At this time, the two ends of the pipe body 1 are welded to the unit equipment. Then, the first hanger 202 and the second hanger 204 are loosened. The top of the first hanger 202 and the top of the second hanger 204 can be welded upward to connect the hangers, so that the first hanger 202 and the second hanger 204 are hoisted on the roof. Since the pipe body 1 is supported by two end support rings 201 and a middle support ring 203, the installation stability of the pipe body 1 is improved, thereby improving the assembly efficiency.

[0045] During installation, the two end support rings 201 are moved to both ends of the pipe body 1, so that one side of the suction cup 3032 is in close contact with the outer wall of the unit equipment. When the end support rings 201 move, the pull rod 3045 on the moving groove 3042 is pulled out to the side away from the pipe body 1, so that the locking rod 3044 enters the interior of the moving groove 3042. After the end support rings 201 move to the end of the pipe body 1, the pull rod 3045 is released, so that the locking rod 3044 enters the first locking groove 301 under the elastic force of the first spring 3046, thereby making the end support rings 201 and the pipe body 1 locked together.

[0046] Then, the moving screw 3038 is rotated. Since the moving screw 3038 is threadedly connected to the external pipe 3033, it drives the piston 3035 to move to the side of the exhaust pipe 3034 away from the end support ring 201. Then, the exhaust pipe 3034 is connected to the negative pressure pump, and the negative pressure pump is turned on to remove the air between the inner cavity 3031 and the suction cup 3032 and the outer wall of the unit equipment. Then, the moving screw 3038 is rotated back, pushing the piston 3035 to move to the side of the exhaust pipe 3034 close to the end support ring 201, thereby creating a vacuum inside the suction cup 3032, so that the end support ring 201 is firmly adsorbed onto the unit equipment. Since the end support ring 201 is engaged with the pipe body 1, and the end support ring 201 is fixed by negative pressure adsorption, the pipe body 1 and the unit equipment are reinforced and fixed by the end support ring 201, thereby improving the connection stability between the pipe body 1 and the two unit equipment.

[0047] After adjusting the central support ring 203 to the outer side of the middle of the pipe body 1, fix the second hanger 204. Then rotate the protective side plate 3052 toward the central support ring 203 so that the protective side plate 3052 is parallel to the pipe body 1. Then pull the telescopic plate 3055 out from the movable groove 3054 so that the end block 30571 moves to the corresponding position of the second slot 302. Then pull the locking rods 30577 on both sides of the end block 30571 outward and insert the locking plate 30573 into the through groove 30572, so that one end of the locking plate 30573 is inserted into the second slot 302. Then release the locking rods 30577 so that the locking rods 30577 enter the second slot 302 under the elastic force of the third spring 30579. The end block 30571 is fixed to the card plate 30573 in the card slot 30575. At this time, the card plate 30573 is engaged with the middle support ring 203, thereby fixing the protective side plate 3052. When the telescopic plate 3055 is pulled out toward the middle support ring 203, the second spring 3056 is stretched. Under the tension of the second spring 3056, a pulling force is generated on the end support rings 201 on both sides toward the middle support ring 203. The end support rings 201 are fixedly attached to the unit equipment, thereby generating a pulling force on the unit equipment at both ends of the pipe body 1 toward the pipe body 1, thereby increasing the clamping force between the unit equipment and the pipe body 1, thereby increasing the connection strength between the pipe body 1 and the unit equipment.

[0048] When the protective side plate 3052 rotates toward the pipe body 1 until it is parallel to the pipe body 1, the pressure plate 30584 contacts the outer wall of the pipe body 1. During the rotation, the pressure plate 30584 is acted upon by the outer wall of the pipe body 1, causing the movable block 30582 to move relative to the protective side plate 3052. This causes the fourth spring 30585 to compress. Since the protective side plate 3052 is fixed, the pressure plate 30584 exerts inward pressure on the inner wall of the pipe body 1 under the elastic force of the fourth spring 30585. This counteracts the outward force exerted on the inner wall of the pipe body 1 by the increased air pressure when hot air flows through it, thereby improving the protection of the pipe body 1.

Claims

1. An assembly device for a combined heat and power unit, comprising a pipe body (1), characterized in that: The outer side of the pipe body (1) is equipped with a pipe hoisting support assembly (2); The pipeline hoisting support assembly (2) includes end support rings (201) symmetrically installed on the outer sides of both ends of the pipeline body (1). A first lifting rod (202) is installed at the top of the end support ring (201). A middle support ring (203) is installed on the outer side of the middle part of the pipeline body (1). A second lifting rod (204) is installed at the top of the middle support ring (203). The top of the second lifting rod (204) is flush with the top of the first lifting rod (202). Both the top of the second lifting rod (204) and the top of the first lifting rod (202) are installed on the crane. A pipeline reinforcement protection assembly (3) is installed on the end support ring (201). The pipeline reinforcement protection assembly (3) includes a first slot (301) opened at equal angles on the outer wall of the pipeline body (1). The first slot (301) is located on the side of the end support ring (201) close to the middle support ring (203). A second slot (301) is opened at equal angles on the outer wall of the middle support ring (203). 2), and two sets of second slots (302) are symmetrically arranged on both sides of the second rod (204). A unit equipment connection unit (303) is installed on the end support ring (201), a pipe connection unit (304) is installed on the end support ring (201), and a pipe protection and clamping unit (305) is installed on the end support ring (201); the unit equipment connection unit (303) includes an inner cavity (3031) opened inside the end support ring (201), end A suction cup (3032) is installed at an equal angle on the side of the secondary support ring (201) away from the middle support ring (203). The suction cup (3032) is connected to the inside of the inner cavity (3031). The side of the suction cup (3032) away from the middle support ring (203) is flush with the end of the pipe body (1). The two ends of the pipe body (1) are welded to the unit equipment. Through the negative pressure pump, the suction cup (3032) on the end support ring (201) is adsorbed and fixed on the unit equipment. The pipe connection unit (304) includes a fixed cylinder (3041) installed at an equal angle on the side of the end support ring (201) near the middle support ring (203). The fixed cylinder (3041) has a moving groove (3042) inside. A moving block (3043) is slidably connected inside the moving groove (3042). A clamping rod (3044) is installed on the side of the moving block (3043) near the pipe body (1). One end of the clamping rod (3044) passes through the moving block. On the outside of the moving groove (3042), the locking rod (3044) is engaged with the first locking groove (301). A pull rod (3045) is installed on the side of the moving block (3043) away from the pipe body (1). The pull rod (3045) extends through to the outside of the moving groove (3042). A first spring (3046) is installed on the end of the moving block (3043) away from the locking rod (3044). One end of the first spring (3046) is fixedly connected to the inner wall of the moving groove (3042). The pipe protection clamping unit (305) includes a rotating head (3051) installed at an equal angle on the outside of the end support ring (201). The number of rotating heads (3051) is the same as the number of the second slots (302). A rotating seat (3053) is rotatably connected to the rotating head (3051). A protective side plate (3052) is installed on the rotating seat (3053). A movable groove (3054) is opened inside the protective side plate (3052). The movable groove (3054) extends to one end of the rotating head (3051) near the middle support ring (203). A telescopic plate (3055) is slidably installed inside the movable groove (3054). A second spring (3056) is symmetrically installed at the end of the telescopic plate (3055) away from the central support ring (203). One end of the second spring (3056) is fixedly connected to the inner wall of the movable groove (3054). A protective side plate fixing module (3057) is installed at the end of the telescopic plate (3055) close to the central support ring (203). A pipe outer wall clamping module (3058) is equidistantly installed on the side of the protective side plate (3052) close to the pipe body (1). The protective side plate fixing module (3057) includes an end block (30571) installed on the telescopic plate (3055) near the middle support ring (203). The end block (30571) has a through groove (30572) inside. A retaining plate (30573) is slidably installed inside the through groove (30572). The retaining plate (30573) is engaged inside the second retaining groove (302). A limiting plate (30574) is installed on the end of the retaining plate (30573) away from the middle support ring (203). The pipe outer wall clamping module (3058) includes a movable cylinder (30581) equidistantly installed on the side of the protective side plate (3052) near the pipe body (1). A movable block (30582) is slidably installed inside the movable cylinder (30581). A connecting rod (30583) is installed on the side of the movable block (30582) near the pipe body (1). A pressure plate (30584) is installed at one end of the connecting rod (30583). A fourth spring (30585) is installed on the side of the movable block (30582) away from the pipe body (1). One end of the fourth spring (30585) is fixedly connected to the inner wall of the movable cylinder (30581).

2. The assembly device for a combined heat and power unit according to claim 1, characterized in that: An external tube (3033) is installed on the front of the end support ring (201). The external tube (3033) is connected to the inner cavity (3031). An exhaust pipe (3034) is installed on one side of the external tube (3033). A piston (3035) is movably installed inside the external tube (3033). The outer wall of the piston (3035) is in close contact with the inner wall of the external tube (3033). A limiting groove (3036) is opened on the side of the piston (3035) away from the end support ring (201). A limiting block (3037) is rotatably connected inside the limiting groove (3036). A moving screw (3038) is installed on the side of the limiting block (3037) away from the piston (3035). The moving screw (3038) is threadedly connected to the end of the external tube (3033) away from the end support ring (201).

3. The assembly device for a combined heat and power unit according to claim 2, characterized in that: The top and bottom of the card plate (30573) are symmetrically provided with snap-fit ​​grooves (30575), and the top and bottom of the end block (30571) are symmetrically provided with mounting grooves (30576). The mounting grooves (30576) extend into the interior of the through groove (30572). A snap-fit ​​rod (30577) is movably installed inside the mounting groove (30576). The snap-fit ​​rod (30577) snaps into the interior of the snap-fit ​​groove (30575). A pull plate (30578) is installed at the end of the snap-fit ​​rod (30577) away from the card plate (30573). A third spring (30579) is installed at the end of the pull plate (30578) near the end block (30571). One end of the third spring (30579) is fixedly connected to the end block (30571).

4. The assembly device for a combined heat and power unit according to claim 3, characterized in that: The pressure plate (30584) is set in an arc shape, and the arc of the pressure plate (30584) is the same as the arc of the outer wall of the pipe body (1). The fourth spring (30585) is in a compressed state, and the pressure plate (30584) is in close contact with the outer wall of the pipe body (1).

5. A method for assembling an assembly device for a combined heat and power unit according to any one of claims 1-4, comprising the following steps:

1. Place two end support rings (201) and one middle support ring (203) on the outside of the pipe body (1), and then use a hoisting device to hoist the pipe body (1) between the two units. Then weld the two ends of the pipe body (1) to the unit.

2. Move the two end support rings (201) to both ends of the pipe body (1) respectively, and engage them with the first slot (301) through the clamp rod (3044) so ​​that the two end support rings (201) are fixed at both ends of the pipe body (1). Then, through the negative pressure pump, the suction cup (3032) on the end support rings (201) is adsorbed and fixed on the unit equipment.

3. Move the middle support ring (203) to the middle of the pipe body (1), and then rotate the protective side plates (3052) on the end support rings (201) on both sides toward the middle support ring (203) until the protective side plates (3052) are parallel to the pipe body (1). Then, the protective side plates (3052) are engaged with the second slot (302) by the clamping plate (30573) so that the protective side plates (3052) are fixed with the middle support ring (203). At this time, the pressure plate (30584) is pressed against the outer wall of the pipe body (1). Fourth, at this time, the first hanger (202) on the end support ring (201) and the second hanger (204) on the middle support ring (203) are both set upward. Then, the first hanger (202) and the second hanger (204) are extended upward until the first hanger (202) and the second hanger (204) are fixedly installed on the roof, so that the end support ring (201) and the middle support ring (203) support the pipe body (1).

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