Pipeline connecting structure of ultra-low nitrogen condensing boiler

Abstract

The utility model relates to the technical field of pipeline connection, and discloses a pipeline connection structure of an ultra-low nitrogen condensation boiler, which is characterized in that adjustable cambered surface clamping blocks are hinged to the inner walls of the middle ends of a fixed frame and a hinged frame, movable blocks are rotatably connected to the inner walls of the two sides of the top of a connection positioning block, and rotating blocks are rotatably connected to the inner walls of the two sides of the bottom of each movable block; a movable frame is hinged to the inner wall of the top end of the adjustable cambered surface clamping block, a rotating screw is rotationally connected to the inner wall of the middle of the rotating block, and the bottom end of the rotating screw is in threaded connection to the inner wall of the top end of the movable frame. Through the arrangement of the cambered surface clamping block, the rotating screw rod and the movable block, the movable frame can be driven to move by rotating the rotating screw rod, then the adjustable cambered surface clamping block is driven to rotate around a hinge point, the clamping force and the clamping position of the adjustable cambered surface clamping block to a pipeline assembly are changed, and the adjustability can adapt to pipeline assemblies with different pipe diameters; and the installation requirements of pipelines of various specifications are met, and the universality of the connecting structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a pipeline connection structure of an ultra-low nitrogen condensing boiler. Background Technique

[0002] A condensing boiler utilizes an efficient condensing waste heat recovery device to absorb the sensible heat in the high-temperature flue gas discharged from the boiler and the latent heat released by the condensation of water vapor, so as to achieve the purpose of improving the thermal efficiency of the boiler. During the installation of an ultra-low nitrogen condensing boiler, a connecting pipe needs to be welded to the transportation pipe of the ultra-low nitrogen condensing boiler.

[0003] The application number is CN202222823809.7, which discloses a pipeline connection structure of an ultra-low nitrogen condensing boiler, including a transportation pipe, a connecting pipe and two semi-circular fixing rings. The two semi-circular fixing rings are sleeved on the outer side wall of the transportation pipe through a plurality of first bolts. A fixing frame is fixedly connected to the outer side wall of the semi-circular fixing ring. A threaded rod is rotatably connected to the inner side wall of the fixing frame. A lifting block is threadedly sleeved on the outer side wall of the threaded rod. Two sliding grooves are opened on the inner side wall of the fixing frame. The outer side wall of the lifting block is slidably connected to the inner side wall of the sliding groove. In the utility model, under the interaction of the transportation pipe, the connecting pipe, the semi-circular fixing ring, the fixing frame, the threaded rod, the lifting block, the rotating handle and the connecting device, by fixing two semi-circular fixing rings on the transportation pipe, and then fitting the transportation pipe and the connecting pipe together through two half-pipe connecting blocks on the connecting device for docking. This device can be docked by one person, improving the docking accuracy, making the docking simpler, faster, time-saving and labor-saving.

[0004] During the installation and use of this connection structure, only the semi-circular fixing ring is sleeved on the outer side wall of the transportation pipe and fixed by the first bolts. The structure is relatively fixed. For pipelines with different diameters, it may be necessary to replace semi-circular fixing rings of different specifications, and it is difficult to quickly and flexibly adjust to adapt to various diameters, resulting in limited versatility. Moreover, the semi-circular fixing ring is fixed by a plurality of first bolts. When installing and disassembling it, each bolt needs to be operated individually, which is relatively cumbersome and time-consuming. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a pipeline connection structure of an ultra-low nitrogen condensing boiler to solve the problem of difficulty in adjusting to adapt to various diameters.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a pipeline connection structure of an ultra-low nitrogen condensing boiler, which includes a pipeline assembly and a support assembly. The pipeline assembly is fixedly installed inside the support assembly. The support assembly includes a fixed frame, and the bottom end of the fixed frame is hinged with a hinged frame. The middle inner walls of the fixed frame and the hinged frame are hinged with adjustable arc-shaped clamping blocks. The top end of the fixed frame is provided with a connection positioning block. The top two inner walls of the connection positioning block are rotatably connected with movable blocks. The bottom two inner walls of the movable blocks are rotatably connected with rotating blocks. The top inner wall of the adjustable arc-shaped clamping block is hinged with a movable frame. The middle inner wall of the rotating block is rotatably connected with a rotating screw rod. The bottom end of the rotating screw rod is threadedly connected to the top inner wall of the movable frame. The purpose of such a setting is that during the use of this pipeline connection structure, the pipeline assembly is placed inside the already assembled support assembly, and the position of the pipeline assembly is adjusted to make it in a suitable installation position. The rotating screw rod is rotated. The rotating screw rod rotates and moves downward in the rotating block, driving the movable frame to move. Furthermore, the adjustable arc-shaped clamping block rotates around its hinge points with the fixed frame and the hinged frame, gradually approaches and clamps the pipeline assembly, realizing the fixed installation of the pipeline assembly inside the support assembly. Rotating the rotating screw rod in the reverse direction makes the rotating screw rod move upward, driving the movable frame to move upward, and the adjustable arc-shaped clamping block rotates in the reverse direction around the hinge point, gradually loosening the clamping of the pipeline assembly. The combination of components such as the connection positioning block, the movable block, and the rotating block enables the support assembly to maintain good structural strength and stability during the adjustment process. The threaded connection between the rotating screw rod and the movable frame can provide reliable fastening force to ensure that the pipeline assembly is firmly clamped and will not loosen due to external forces. By rotating the rotating screw rod, the movable frame can be driven to move, and further the adjustable arc-shaped clamping block can be driven to rotate around the hinge point, changing its clamping force and position on the pipeline assembly. This adjustability can adapt to pipeline assemblies with different pipe diameters, meet the installation requirements of various specifications of pipelines, and improve the versatility of the connection structure.

[0008] Furthermore, positioning collar sleeves are fixedly sleeved on the outer walls of the bottom ends of the fixed frame, the hinged frame and the two side adjustable arc-shaped clamping blocks. A support seat is arranged below the fixed frame and the adjustable arc-shaped clamping block. The fixed frame and the hinged frame are limited on the two inner walls of the support seat. The purpose of such a setting is that during the use of this pipeline connection structure, the positioning collar sleeves can accurately define the relative positions between the fixed frame, the hinged frame and the adjustable arc-shaped clamping blocks, ensuring the accurate installation positions of all components. The support seat is placed in a suitable position, and the fixed frame and the hinged frame are limited to the two inner walls of the support seat, realizing the further positioning and support of the lower structure of the support assembly, making the bottom of the support assembly more stable, better able to bear the weight of the pipeline assembly and the acting forces generated during operation, and reducing the risk of structural deformation.

[0009] Furthermore, the outer ends of the bottom of the fixing frame and the adjustable arc-shaped clamping block are respectively hinged to the inner walls at both ends of the support base. The purpose of this setting is that during the use of this pipeline connection structure, through the hinge, the connection between the fixing frame, the adjustable arc-shaped clamping block and the support base is closer, the stress borne by the structure is dispersed, and the structural strength and stability of the entire support assembly are improved.

[0010] Furthermore, a rubber tube is provided between the two adjustable arc-shaped clamping blocks, and connecting pipes are respectively sleeved on the outer walls at both ends of the rubber tube. The purpose of this setting is that during the use of this pipeline connection structure, the rubber tube has good flexibility and sealing performance, can play a sealing role between the connecting pipes, prevent gas and liquid leakage, and at the same time buffer the vibration and impact force during the operation of the pipeline.

[0011] Furthermore, the outer arc surfaces of the rubber tube and the connecting pipes are fitted with the inner arc surfaces of the adjustable arc-shaped clamping blocks on both sides, and the adjustable arc-shaped clamping blocks on both sides clamp the connection part of the rubber tube and the connecting pipes. The purpose of this setting is that during the use of this pipeline connection structure, the adjustable arc-shaped clamping blocks are fitted and clamped with the outer arc surfaces of the rubber tube and the connecting pipes, which can further enhance the sealing performance and stability of the connection part, and prevent the connection part from loosening and falling off.

[0012] Furthermore, threaded grooves are respectively opened on the outer walls at both ends of the rubber tube, and the two connecting pipes are threadedly connected to the outer walls at both ends of the rubber tube through the threaded grooves. The purpose of this setting is that during the use of this pipeline connection structure, the threaded connection method provides greater connection strength, tightly fixes the connecting pipes and the rubber tube together, effectively bears the pressure of the medium in the pipeline and external forces, and when the pipeline needs to be repaired and components need to be replaced, the connecting pipes can be conveniently disassembled by rotating, improving the maintenance convenience.

[0013] The utility model has the following beneficial effects:

[0014] (1) Through the setting of the arc-shaped clamping block, the rotating screw rod and the movable block, and the combination of components such as the connecting positioning block, the movable block and the rotating block, the support assembly can maintain good structural strength and stability during the adjustment process. By rotating the rotating screw rod, the movable frame can be driven to move, and then the adjustable arc-shaped clamping block can be driven to rotate around the hinge point, changing its clamping force and position on the pipeline assembly. This adjustability can adapt to pipeline assemblies with different pipe diameters, meet the installation requirements of various specifications of pipelines, and improve the versatility of the connection structure.

[0015] (2) Through the arrangement of the rubber tube and the threaded groove, the rubber tube of the present utility model has good flexibility and sealing performance, can play a sealing role between the connecting pipes, prevent gas and liquid leakage, and at the same time buffer the vibration and impact force during the operation of the pipes. When the pipes need to be repaired or components replaced, the connecting pipes can be conveniently disassembled by rotation, improving the convenience of maintenance.

[0016] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the split structure of the pipe assembly of the present utility model;

[0020] Figure 3 It is a schematic diagram of a partial structure of the pipe assembly and the support assembly of the present utility model;

[0021] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the support assembly of the present utility model;

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] In the figure: 1, pipe assembly; 101, rubber tube; 102, threaded groove; 103, connecting pipe; 2, support assembly; 201, fixing frame; 202, hinge frame; 203, adjustable arc-shaped clamping block; 204, positioning collar; 205, support seat; 206, connecting positioning block; 207, movable block; 208, rotating block; 209, rotating screw; 210, movable frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0025] Please refer to Figures 1-4As shown in the figure, the utility model relates to a pipeline connection structure of an ultra-low nitrogen condensing boiler, which includes a pipeline assembly 1 and a support assembly 2. The pipeline assembly 1 is fixedly installed inside the support assembly 2. The support assembly 2 includes a fixed frame 201. The bottom end of the fixed frame 201 is hinged with a hinge frame 202. An adjustable arc-shaped clamping block 203 is hinged on the inner walls of the middle parts of the fixed frame 201 and the hinge frame 202. A connection positioning block 206 is arranged at the top end of the fixed frame 201. Movable blocks 207 are rotatably connected to the inner walls on both sides of the top of the connection positioning block 206. Rotating blocks 208 are rotatably connected to the inner walls on both sides of the bottom of the movable blocks 207. A movable frame 210 is hinged on the inner wall of the top end of the adjustable arc-shaped clamping block 203. A rotating screw 209 is rotatably connected to the inner wall of the middle part of the rotating block 208. The bottom end of the rotating screw 209 is threadedly connected to the inner wall of the top end of the movable frame 210. The purpose of such a setting is that during the use of this pipeline connection structure, the pipeline assembly 1 is placed inside the assembled support assembly 2, and the position of the pipeline assembly 1 is adjusted to make it in a suitable installation position. The rotating screw 209 is rotated. The rotating screw 209 rotates and moves downward in the rotating block 208, driving the movable frame 210 to move, and then making the adjustable arc-shaped clamping block 203 rotate around its hinge points with the fixed frame 201 and the hinge frame 202, gradually approaching and clamping the pipeline assembly 1, realizing the fixed installation of the pipeline assembly 1 inside the support assembly 2. The rotating screw 209 is rotated in the reverse direction, making the rotating screw 209 move upward, driving the movable frame 210 to move upward, and the adjustable arc-shaped clamping block 203 rotates reversely around the hinge point, gradually loosening the clamping of the pipeline assembly 1. The combination of components such as the connection positioning block 206, the movable blocks 207, and the rotating blocks 208 enables the support assembly 2 to maintain good structural strength and stability during the adjustment process. The threaded connection between the rotating screw 209 and the movable frame 210 can provide a reliable fastening force to ensure that the pipeline assembly 1 is firmly clamped and will not loosen due to external forces. By rotating the rotating screw 209, the movable frame 210 can be driven to move, and then the adjustable arc-shaped clamping block 203 can be driven to rotate around the hinge point, changing its clamping force and position on the pipeline assembly 1. This adjustability can adapt to pipeline assemblies with different pipe diameters, meet the installation requirements of various specifications of pipelines, and improve the versatility of the connection structure.

[0026] A positioning collar 204 is fixedly sleeved on the outer walls of the bottom ends of the fixing frame 201, the hinged frame 202 and the adjustable arc-shaped clamping blocks 203 on both sides. A support base 205 is provided below the fixing frame 201 and the adjustable arc-shaped clamping blocks 203. The fixing frame 201 and the hinged frame 202 are limited on the inner walls on both sides of the support base 205. The purpose of such a setting is that during the use of this pipeline connection structure, the positioning collar 204 can accurately define the relative positions among the fixing frame 201, the hinged frame 202 and the adjustable arc-shaped clamping blocks 203, ensure the accurate installation positions of all components, place the support base 205 at a suitable position, and limit the fixing frame 201 and the hinged frame 202 to the inner walls on both sides of the support base 205, so as to further position and support the lower structure of the support assembly, make the bottom of the support assembly more stable, better bear the weight of the pipeline assembly and the acting forces generated during operation, and reduce the risk of structural deformation.

[0027] The outer ends of the bottoms of the fixing frame 201 and the adjustable arc-shaped clamping blocks 203 are respectively hinged to the inner walls at both ends of the support base 205. The purpose of such a setting is that during the use of this pipeline connection structure, the connection between the fixing frame 201, the adjustable arc-shaped clamping blocks 203 and the support base 205 is made closer through hinging, the stress borne by the structure is dispersed, and the structural strength and stability of the entire support assembly are improved.

[0028] A rubber tube 101 is provided between the two adjustable arc-shaped clamping blocks 203. Connecting pipes 103 are respectively sleeved on the outer walls of both ends of the rubber tube 101. The purpose of such a setting is that during the use of this pipeline connection structure, the rubber tube 101 has good flexibility and sealing performance, can play a sealing role between the connecting pipes 103, prevent gas and liquid leakage, and at the same time buffer the vibration and impact force during pipeline operation.

[0029] The outer arc surfaces of the rubber tube 101 and the connecting pipes 103 are fitted with the inner arc surfaces of the adjustable arc-shaped clamping blocks 203 on both sides. The adjustable arc-shaped clamping blocks 203 on both sides clamp the connection part of the rubber tube 101 and the connecting pipes 103. The purpose of such a setting is that during the use of this pipeline connection structure, the adjustable arc-shaped clamping blocks 203 are fitted and clamped with the outer arc surfaces of the rubber tube 101 and the connecting pipes 103, which can further enhance the sealing performance and stability of the connection part and prevent the connection from loosening and falling off.

[0030] Thread grooves 102 are respectively formed on the outer walls of both ends of the rubber tube 101. The two connecting pipes 103 at both ends are threadedly connected to the outer walls of both ends of the rubber tube 101 through the thread grooves 102. The purpose of such a setting is that during the use of this pipeline connection structure, the threaded connection method provides greater connection strength, tightly fixes the connecting pipes 103 and the rubber tube 101 together, effectively bears the pressure of the medium inside the pipeline and external acting forces. When the pipeline needs to be repaired or components need to be replaced, it can be conveniently disassembled by rotating the connecting pipes 103, improving the maintenance convenience.

[0031] During use, the pipeline component 1 sleevs two connecting pipelines to be connected on both ends of the rubber tube 101 in sequence. The rubber tube 101 has good flexibility and sealing performance, can play a sealing role between the connecting pipelines 103, prevent gas and liquid leakage, and at the same time buffer the vibration and impact force during pipeline operation. Then, the connecting pipeline 103 and the rubber tube 101 are tightly fixed together through the thread groove 102;

[0032] Place the pipeline component 1 inside the assembled support component 2, adjust the position of the pipeline component 1 to make it in a suitable installation position, rotate the rotating screw 209. The rotating screw 209 rotates and moves downward in the rotating block 208, driving the movable frame 210 to move. Then, the adjustable arc-shaped clamping block 203 rotates around its hinge points with the fixed frame 201 and the hinge frame 202, gradually approaches and clamps the pipeline component 1, realizing the fixed installation of the pipeline component 1 inside the support component 2. Rotate the rotating screw 209 in the reverse direction, making the rotating screw 209 move upward, driving the movable frame 210 to move upward, and the adjustable arc-shaped clamping block 203 rotates reversely around the hinge point, gradually loosening the clamping of the pipeline component 1;

[0033] The combination of components such as the connecting positioning block 206, the movable block 207, and the rotating block 208 enables the support component 2 to maintain good structural strength and stability during the adjustment process. The threaded connection between the rotating screw 209 and the movable frame 210 can provide reliable fastening force to ensure that the pipeline component 1 is firmly clamped and will not loosen due to external force. By rotating the rotating screw 209, the movable frame 210 can be driven to move, and then the adjustable arc-shaped clamping block 203 can be driven to rotate around the hinge point, changing its clamping force and position on the pipeline component 1. This adjustability can adapt to pipeline components of different diameters, meet the installation requirements of various specifications of pipelines, and improve the versatility of the connection structure.

[0034] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A pipeline connection structure for an ultra-low nitrogen condensing boiler, comprising a pipeline assembly (1) and a support assembly (2), characterized in that: The pipeline assembly (1) is fixedly installed inside the support assembly (2). The support assembly (2) comprises a fixed frame (201). The bottom end of the fixed frame (201) is hingedly connected to an articulated frame (202). An adjustable arc surface clamping block (203) is hingedly connected to the inner walls of the middle ends of the fixed frame (201) and the articulated frame (202). A connecting positioning block (206) is provided at the top end of the fixed frame (201). Movable blocks (207) are rotatably connected to the inner walls on both sides of the top of the connecting positioning block (206). Rotating blocks (208) are rotatably connected to the inner walls on both sides of the bottom of the movable block (207). A movable frame (210) is hingedly connected to the inner wall of the top end of the adjustable arc surface clamping block (203). A rotating screw (209) is rotatably connected to the inner wall of the middle part of the rotating block (208). The bottom end of the rotating screw (209) is threadedly connected to the inner wall of the top end of the movable frame (210).

2. The pipeline connection structure of the ultra-low nitrogen condensing boiler according to claim 1 is characterized in that: Positioning rings (204) are fixedly sleeved on the outer walls of the bottom ends of the fixed frame (201) and the articulated frame (202) and the adjustable curved surface clamping blocks (203) on both sides; a support seat (205) is provided below the fixed frame (201) and the adjustable curved surface clamping blocks (203); the fixed frame (201) and the articulated frame (202) are limited on the inner walls on both sides of the support seat (205).

3. The pipeline connection structure of the ultra-low nitrogen condensing boiler according to claim 2 is characterized in that: The bottom outer ends of the fixing frame (201) and the adjustable curved surface clamping block (203) are respectively hinged to the inner walls at both ends of the support seat (205).

4. The pipe connection structure of the ultra-low nitrogen condensing boiler according to claim 1 is characterized in that: A rubber tube (101) is provided between the two adjustable arc surface clamping blocks (203), and connecting pipes (103) are respectively sleeved on the outer walls of both ends of the rubber tube (101).

5. The pipe connection structure of the ultra-low nitrogen condensing boiler according to claim 4 is characterized in that: The outer arc surfaces of the rubber tube (101) and the connecting pipe (103) fit with the inner arc surfaces of the adjustable arc surface clamping blocks (203) on both sides, and the adjustable arc surface clamping blocks (203) on both sides are clamped at the connection between the rubber tube (101) and the connecting pipe (103).

6. The pipe connection structure of the ultra-low nitrogen condensing boiler according to claim 5, characterized in that: The outer walls at both ends of the rubber tube (101) are respectively provided with thread grooves (102), and the connecting pipes (103) at both ends are threadedly connected to the outer walls at both ends of the rubber tube (101) through the thread grooves (102).

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