Green constant-force movable support for long-distance transmission heat pipe in mountainous area and pipeline supporting method

Abstract

The invention belongs to the technical field of installation and fixation of heat distribution pipes, and particularly discloses a green constant-force movable support for a long-distance transmission heat distribution pipe in a mountainous area and a pipeline supporting method.The green constant-force movable support for the long-distance transmission heat distribution pipe in the mountainous area comprises a support, a left supporting rod and a right supporting rod, and a rotating shaft is connected between the left supporting rod and the right supporting rod; a secondary supporting rod and a main supporting rod which are used for supporting a pipeline are arranged on the front side and the rear side of the rotating shaft respectively, the main supporting rod is connected to the rear ends of the left supporting rod and the right supporting rod, the rotating shaft is rotationally connected to the support, and a balance weight unit is installed at the front ends of the left supporting rod and the right supporting rod. The outer surface of the secondary supporting rod is a cylindrical surface, the pipeline and the secondary supporting rod achieve point contact in the macroscopic sense, and the pipeline can move conveniently to release stress; a base plate is in linear contact with the main supporting rod, the upper surface of the base plate is in linear contact with the pipeline through a plane, expansion displacement is met, the damping effect is achieved, and the problems of expansion and displacement of the heat distribution pipeline with large topographic changes and vibration of the pipeline can be effectively solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of installation and fixation of thermal pipelines, and specifically relates to a green constant force dynamic support for long-distance thermal pipelines in mountainous areas and a pipeline support method. Background Art

[0002] In a conventional thermal pipeline system, the pipelines in some areas are two-phase flow pipelines of steam and liquid, and there are vibration factors during operation. For thermal pipelines with vibration and displacement, springs and dampers are usually selected for control. However, such products have high costs, long procurement cycles, and spring products have metal fatigue problems, and long-term maintenance and repair are required during operation, resulting in high costs.

[0003] Traditional constant force supports use springs or hydraulic dampers, etc. Once the stroke is determined, it cannot be adjusted anymore. The internal components are springs or hydraulic mechanisms, and maintenance and repair are required during long-term operation. Once the torque or stroke is exceeded, it cannot form good protection for the pipeline system or release expansion, thus causing stress concentration and even triggering safety accidents. Summary of the Invention

[0004] In view of the above problems in the prior art, a green constant force dynamic support for long-distance thermal pipelines in mountainous areas and a pipeline support method are now proposed. The present invention provides the following technical solutions:

[0005] A constant force dynamic support for long-distance green thermal pipelines crossing mountains includes a support and a support component for supporting the pipeline. The support component includes a left support rod and a right support rod. A rotating shaft is connected between the left support rod and the right support rod. Secondary support rods and main support rods for supporting the pipeline are respectively arranged on the front and rear sides of the rotating shaft. The main support rod is connected to the rear ends of the left support rod and the right support rod. The rotating shaft is rotatably connected to the support. A counterweight unit is installed at the front ends of the left support rod and the right support rod. The outer surface of the main support rod is a cylindrical surface, and the outer surface of the secondary support rod is a cylindrical surface. A backing plate is in line contact with the main support rod, and the upper surface of the backing plate is in line contact with the pipeline through a plane.

[0006] Preferably, the left support rod and the right support rod are symmetrically arranged left and right, and both are bent upward around an axis at the front section. The axis is arranged in the middle of the left support rod and the right support rod and is located in front of the rotating shaft.

[0007] Preferably, upper connecting rods and lower connecting rods that fixedly connect the front and rear sides of the bending joints are fixed to the left support rod and the right support rod, and both the upper connecting rods and the lower connecting rods are V-shaped.

[0008] Preferably, a front limiting plate and a rear limiting plate are respectively connected to the front and rear ends of the backing plate. The front limiting plate and the rear limiting plate are L-shaped or C-shaped and the ends extend towards the middle of the backing plate. A lateral limiting space is formed between the backing plate and the front limiting plate and the rear limiting plate, and an installation space is formed between the front limiting plate and the rear limiting plate.

[0009] Preferably, a locking plate is inserted horizontally between the front limiting plate and the rear limiting plate.

[0010] Preferably, two minimum limiting jacks for abutting against the main support rod and restricting the transverse movement of the cushion plate are symmetrically arranged on the front and rear of the locking plate, and two maximum limiting jacks for restricting the maximum range of the transverse movement of the cushion plate are symmetrically arranged on the front and rear of the locking plate. A limiting round rod is inserted into the minimum limiting jack or the maximum limiting jack.

[0011] Preferably, a first installation groove is arranged on the upper side of the cushion plate. N guiding grooves are arranged in the first installation groove, where N≥2, and the guiding grooves extend in the front and rear directions. N guiding plates are slidably connected in the first installation groove through the guiding grooves in the front and rear directions. The guiding plates are abutted against each other left and right. The length of the guiding plate is less than the length of the cushion plate. Both ends of the guiding plate are respectively abutted against a first elastic member. N first elastic members are respectively installed on the front and rear side walls of the first installation groove. The end of the first elastic member is connected to a first piezoelectric sheet. Two poles of the first piezoelectric sheet are electrically connected to an external controller and a signal transmission device for transmitting the power generation information of each guiding plate.

[0012] Preferably, a second installation groove is arranged at the bottom of the guiding groove. A second elastic member is installed at the bottom of the second installation groove. The top end of the second elastic member is connected to a second piezoelectric sheet. The upper end of the second piezoelectric sheet abuts against the guiding plate. Two poles of the second piezoelectric sheet are electrically connected to an external controller and a signal transmission device.

[0013] A pipeline support method, based on a constant-force dynamic support for a long-distance green heating pipeline crossing mountains, an installation counterweight unit of a left support rod and a right support rod, the pipeline abuts against the secondary support rod at the front side, the pipeline abuts against the cushion plate at the rear side, and the cushion plate abuts against the main support rod downward.

[0014] Preferably, the first piezoelectric sheet absorbs the vibration caused by the shear force in the axial direction of the pipeline, the second piezoelectric sheet absorbs the vibration in the radial direction of the pipeline and converts it into electricity, and the voltage and current information of each first piezoelectric sheet and second piezoelectric sheet on the cushion plate are remotely transmitted through the signal transmission device by the controller. The guiding plates are numbered 1, 2, …n in sequence in the left and right directions, and the voltage and current information of the corresponding first piezoelectric sheets are obtained. The sets An and Bn are respectively obtained on the front and rear sides of the guiding plate as input information, and the deflection angle information of the pipeline and the contact position information between the cushion plate and the main support rod are obtained through actual measurement as output information. A mapping relationship is established between the input information and the output information. When new voltage and current information is generated, the position information between the pipeline, the cushion plate and the main pipeline is obtained according to this mapping relationship to realize remote monitoring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The support component uses the lever principle to cooperate with the counterweight unit to ensure that the pipeline continuously bears an appropriate additional load, forming an effective damping effect, significantly suppressing vibration and ensuring the safe operation of the system. Moreover, it is simple to install and has a low cost.

[0017] 2. The cylindrical surface design of the main support rod and the secondary support rod has a self-cleaning characteristic, which can reduce the negative impact of sediment adhesion on the sliding performance. At the same time, it allows the pipeline to move freely through point contact to release stress.

[0018] 3. The backing plate and the front and rear limit plates form a multi-stage anti-disengagement structure, which adapts to the pipeline angle deviation caused by the complex terrain in mountainous areas, maintains line contact and freely adjusts the sliding direction to prevent the risk of disengagement. Description of the Drawings

[0019] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention;

[0020] Figure 2 is the three-dimensional structure schematic diagram of the support component;

[0021] Figure 3 is the structure schematic diagram of the lock plate and the guide plate;

[0022] In the drawings, 1. Support; 2. Support component; 21. Left support rod; 22. Right support rod; 23. Rotating shaft; 24. Secondary support rod; 25. Main support rod; 26. Counterweight unit; 3. Shaft 1; 4. Upper connecting rod; 5. Lower connecting rod; 6. Backing plate; 61. Front limit plate; 62. Rear limit plate; 7. Lock plate; 71. Minimum limit jack; 72. Maximum limit jack; 8. Limit round rod; 9. Guide plate; 10. First elastic member. Detailed Embodiments

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. The direction terms mentioned in the following embodiments, such as "upper", "lower", "left", "right", etc., are only references to the directions in the drawings. Therefore, the direction terms used are for illustration rather than limitation of the present invention.

[0024] Embodiment 1

[0025] As Figures 1-3As shown in the figure, a constant force dynamic support for a long-distance green heat pipe crossing mountains includes a support 1 and a support assembly 2 for supporting the pipeline. The support assembly 2 includes a left support rod 21 and a right support rod 22. A rotating shaft 23 is connected between the left support rod 21 and the right support rod 22. A secondary support rod 24 and a main support rod 25 for supporting the pipeline are respectively arranged on the front and rear sides of the rotating shaft 23. The main support rod 25 is connected to the rear ends of the left support rod 21 and the right support rod 22. The rotating shaft 23 is rotatably connected to the support 1. A counterweight unit 26 is installed at the front ends of the left support rod 21 and the right support rod 22. The lever principle can be used to ensure that there is always an appropriate additional load acting on the pipeline, effectively forming a damping effect, relieving vibration, and ensuring the safe operation of the pipeline system. The outer surface of the main support rod 25 is a cylindrical surface, and the outer surface of the secondary support rod 24 is a cylindrical surface. The pipeline makes point contact with the secondary support rod 24 in a macroscopic sense, facilitating the movement of the pipeline to release stress. Its cylindrical surface design has a self-cleaning function, which can reduce the influence of sediment accumulation on the sliding performance. A backing plate 6 is in line contact with the main support rod 25. The upper surface of the backing plate 6 is in line contact with the pipeline through a plane, which can play a damping role while meeting the expansion displacement, thus effectively solving the problems of expansion, displacement, and vibration of the heat pipeline with large terrain changes. Considering the undulating changes in the mountainous terrain, the pipeline may undergo angular offsets, that is, upward or downward inclination, left or right deviation. No matter how it changes, the pipeline is always in line contact with the backing plate 6, and the backing plate 6 is always in line contact with the main support rod 25, and can freely adjust the angle and slide smoothly.

[0026] Further, the left support rod 21 and the right support rod 22 are symmetrically arranged left and right, and both are bent upward around axis one 3 in the front section. Axis one 3 is arranged in the middle of the left support rod 21 and the right support rod 22 and is located in front of the rotating shaft 23.

[0027] Further, upper connecting rods 4 and lower connecting rods 5 are fixedly connected to the front and rear sides of the cross-bending parts on the left support rod 21 and the right support rod 22. The upper connecting rods 4 and the lower connecting rods 5 are both V-shaped, forming a space truss structure to enhance the bending stiffness, and forming a two-way anti-torsion support system through the difference in the V-shaped opening directions.

[0028] Specifically, the left support rod 21, the right support rod 22, the upper connecting rods 4, the lower connecting rods 5, the secondary support rod 24, and the main support rod 25 all adopt round pipes, with isotropic mechanical properties, which can evenly distribute the support load, and their closed cross-section forms can effectively improve the bending and torsion stiffness, and the hollow structure of the round pipe can reduce the self-weight while retaining sufficient bearing capacity.

[0029] Specifically, fastening seats are sleeved on the left support rod 21 and the right support rod 22 and fastened by bolts. A pin shaft is rotatably connected to the lower end of the fastening seat. Counterweight frames are symmetrically connected to the left and right sides of the left support rod 21 or the right support rod 22 with respect to the pin shaft. The counterweight unit 26 is placed in the counterweight frame, and the number of counterweight units 26 can be adjusted as needed to adjust the torque.

[0030] Specifically, the support seat is of a four-foot type. The part of the support seat higher than the main support rod 25 can be used for limiting the pipeline, or can be limited by a clamp. The clamp is detachable. Specifically, the upper end of the clamp protrudes from the cushion plate 6 and is spaced on the left and right sides of the cushion plate 6.

[0031] Furthermore, front limiting plates 61 and rear limiting plates 62 are respectively connected to the front and rear ends of the cushion plate 6. The front limiting plate 61 and the rear limiting plate 62 are symmetric in the front and rear. The front limiting plate 61 and the rear limiting plate 62 are C-shaped and the ends extend towards the middle of the cushion plate 6. A transverse limiting space is formed between the cushion plate 6 and the front limiting plate 61 and the rear limiting plate 62, forming a multi-level anti-disengagement hook structure. An installation space is formed between the front limiting plate 61 and the rear limiting plate 62. The cushion plate 6 is placed on the main support rod 25 through the installation space. Even if the pipeline moves to the deepest part of the transverse limiting space, hooks can be formed by the front limiting plate 61 and the rear limiting plate 62. Its C-shaped is similar to a semi-circular pipe structure, and it can maintain line contact even when hung on the main support rod 25.

[0032] The structure of the present invention can be mainly assembled into a set by welding components such as round pipes and steel plates, and the specific specifications can be freely adjusted according to the height requirements during on-site installation. It is very suitable for similar projects in mountainous areas with complex terrain, with simple installation and low implementation costs.

[0033] Embodiment 2

[0034] On the basis of Embodiment 1, a lock plate 7 is inserted horizontally between the front limit plate 61 and the rear limit plate 62 to achieve rapid assembly and modular maintenance; two minimum limit jacks 71 for abutting against the main support rod 25 and restricting the lateral movement of the cushion plate 6 are symmetrically arranged on the lock plate 7 in the front-back direction, and two maximum limit jacks 72 for restricting the maximum range of the lateral movement of the cushion plate 6 are symmetrically arranged on the lock plate 7 in the front-back direction. A limit round rod 8 is inserted into the minimum limit jack 71 or the maximum limit jack 72. Different arrangement positions of the limit round rod 8 are used to achieve hierarchical displacement constraints, and an installation method is involved. Before installation, the lock plate 7 is separated from the front limit plate 61 and the rear limit plate 62. The cushion plate 6 is placed on the main support rod 25 through the installation space, and then the lock plate 7 is inserted. Before contacting or receiving the pipeline, the limit round rod 8 is first inserted into the minimum limit jack 71, so that the cushion plate 6 does not displace relative to the main support rod 25, but rotates around the axis of the main support rod 25, and has a certain clamping force on the main support rod 25, so that the cushion plate 6 contacts the main support rod 25 in the center and maintains an approximately horizontal state, and then the pipeline is abutted. After abutting the pipeline, the installation position of the limit round rod 8 can be changed.

[0035] Further, a first installation groove is provided on the upper side of the cushion plate 6, and N guide grooves are provided in the first installation groove, where N≥2, and the guide grooves extend in the front-back direction. N guide plates 9 are slidably connected in the first installation groove in the front-back direction through the guide grooves. Wear-resistant ceramic coatings are inlaid on the inner walls of the guide plates 9, significantly reducing the wear rate during long-term use; the guide plates 9 are abutted against each other left and right, the length of the guide plate 9 is less than the length of the cushion plate 6, and both ends of the guide plate 9 are respectively abutted against a first elastic member 10. N first elastic members 10 are respectively installed on the front and rear side walls of the first installation groove. The end of the first elastic member 10 is connected to a first piezoelectric sheet, and two poles of the first piezoelectric sheet are electrically connected to an external controller, a storage battery, and a signal transmission device for transmitting the power generation information of each guide plate 9. Specifically, in this embodiment, N = 4.

[0036] Further, a second installation groove is provided at the bottom of the guide groove, a second elastic member is installed at the bottom of the second installation groove, and the top end of the second elastic member is connected to a second piezoelectric sheet. The upper end of the second piezoelectric sheet abuts against the guide plate 9, and two poles of the second piezoelectric sheet are electrically connected to the storage battery, the controller, and the signal transmission device.

[0037] Specifically, the first elastic member 10 and the second elastic member can adopt leaf spring pieces, and are covered on both sides of the first piezoelectric sheet or the second piezoelectric sheet, forming protection while providing elasticity for resetting to improve durability; specifically, the surface of the leaf spring piece is subjected to shot peening treatment to improve its fatigue life.

[0038] Embodiment 3

[0039] A pipeline support method, based on a constant-force dynamic support for a long-distance green heating pipeline crossing mountains, an installation counterweight unit 26 of a left support rod 21 and a right support rod 22, the pipeline abuts against a secondary support rod 24 on the front side, the pipeline abuts against a backing plate 6 on the rear side, and the backing plate 6 abuts downward against a main support rod 25.

[0040] Furthermore, the first piezoelectric sheet is used to absorb the vibration caused by the shear force in the axial direction of the pipeline, and the second piezoelectric sheet is used to absorb the vibration in the radial direction of the pipeline and convert it into electricity. The voltage and current information of each first piezoelectric sheet and second piezoelectric sheet on the backing plate 6 is remotely transmitted through a signal transmission device by adopting an adaptive frequency hopping technology during the transmission process, effectively avoiding the interference of the complex electromagnetic environment in the mountains on the signal; the guide plates 9 are numbered 1, 2, … n in the left-right direction in sequence, and the voltage and current information of the corresponding first piezoelectric sheets is obtained. The sets An and Bn are respectively obtained on the front and rear sides of the guide plate 9 as input information, and the deflection angle information of the pipeline and the contact position information between the backing plate 6 and the main support rod 25 are obtained through actual measurement as output information. A mapping relationship is established between the input information and the output information, and this mapping relationship is dynamically optimized through a machine learning algorithm and can automatically correct the prediction model as the service time of the pipeline progresses; when new voltage and current information is generated, the position information among the pipeline, the backing plate 6, and the main pipeline is obtained according to this mapping relationship to achieve remote monitoring; the controller integrates an edge computing unit, which can complete data preprocessing locally and generate a real-time warning instruction to remind the staff to carry out maintenance.

[0041] Furthermore, a temperature and humidity sensor is added and connected to the original circuit, and the vibration signal and temperature change data are combined to realize a three-dimensional evaluation of the pipeline health status.

Claims

1. A constant-force moving support for a long-distance green heat pipe crossing mountainous areas, characterized in that, It includes a support (1) and a support assembly (2) for supporting a pipeline. The support assembly (2) includes a left support rod (21) and a right support rod (22). A rotating shaft (23) is connected between the left support rod (21) and the right support rod (22). A secondary support rod (24) and a main support rod (25) for supporting the pipeline are respectively arranged on the front and rear sides of the rotating shaft (23). The main support rod (25) is connected to the rear ends of the left support rod (21) and the right support rod (22). The rotating shaft (23) is rotatably connected to the support (1). A counterweight unit (26) is installed at the front ends of the left support rod (21) and the right support rod (22). The outer surface of the main support rod (25) is a cylindrical surface, and the outer surface of the secondary support rod (24) is a cylindrical surface. A backing plate (6) is in line contact with the main support rod (25), and the upper surface of the backing plate (6) is in line contact with the pipeline through a plane.

2. The constant force dynamic support for the long-distance green heat pipe crossing mountains according to claim 1, characterized in that, The left support rod (21) and the right support rod (22) are symmetrically arranged left and right, and both are bent upward around a first axis (3) at the front section. The first axis (3) is arranged in the middle of the left support rod (21) and the right support rod (22), and is located on the front side of the rotating shaft (23).

3. The constant-force dynamic support for the long-distance green heating pipe crossing mountains according to claim 1, wherein Upper connecting rods (4) and lower connecting rods (5) that fixedly connect the front and rear sides of the cross-bending part are arranged on the left support rod (21) and the right support rod (22). Both the upper connecting rods (4) and the lower connecting rods (5) are V-shaped.

4. The constant-force dynamic support for the long-distance green heat pipe crossing mountains according to claim 1, characterized in that, Front limiting plates (61) and rear limiting plates (62) are respectively connected to the front and rear ends of the backing plate (6). The front limiting plates (61) and the rear limiting plates (62) are L-shaped or C-shaped and their ends extend towards the middle of the backing plate (6). A transverse limiting space is formed between the backing plate (6) and the front limiting plates (61) and the rear limiting plates (62), and an installation space is formed between the front limiting plates (61) and the rear limiting plates (62).

5. The constant force dynamic support for the long-distance green heat pipe crossing mountains according to claim 4, characterized in that, A locking plate (7) is inserted left and right between the front limiting plates (61) and the rear limiting plates (62).

6. The constant-force moving support for the long-distance green heat pipeline crossing mountains according to claim 5, characterized in that, Two minimum limiting jacks (71) for abutting against the main support rod (25) and restricting the transverse movement of the backing plate (6) are symmetrically arranged front and rear on the locking plate (7). Two maximum limiting jacks (72) for restricting the maximum range of the transverse movement of the backing plate (6) are symmetrically arranged front and rear on the locking plate (7). A limiting round rod (8) is inserted into the minimum limiting jack (71) or the maximum limiting jack (72).

7. The constant force dynamic support for the long-distance green heat pipeline crossing mountains according to claim 6, characterized in that, A first installation groove is arranged on the upper side of the backing plate (6). N guiding grooves are arranged in the first installation groove, N≥2, and the guiding grooves extend front and rear. N guiding plates (9) are slidably connected front and rear in the first installation groove through the guiding grooves. The guiding plates (9) are abutted against each other left and right. The length of the guiding plate (9) is less than the length of the backing plate (6). Both ends of the guiding plate (9) are respectively abutted against a first elastic member (10). N first elastic members (10) are respectively installed on the front and rear side walls of the first installation groove. The end of the first elastic member (10) is connected to a first piezoelectric sheet. The two poles of the first piezoelectric sheet are electrically connected to the outside to a controller and a signal transmission device for transmitting the power generation information of each guiding plate (9).

8. The constant force dynamic support for the long-distance green heating pipe crossing mountainous areas according to claim 7, characterized in that, A second mounting groove is provided at the bottom of the guiding groove. A second elastic member is mounted at the bottom of the second mounting groove. The top end of the second elastic member is connected to a second piezoelectric sheet. The upper end of the second piezoelectric sheet abuts against the guiding plate (9). Two poles of the second piezoelectric sheet are electrically connected to the controller and the signal transmission device outward.

9. A pipeline support method, characterized in that, When using the constant force dynamic support for long-distance green heat pipes crossing mountains as described in claim 8, for the installation counterweight units (26) of the left support rod (21) and the right support rod (22), the pipeline abuts against the secondary support rod (24) at the front side, the pipeline abuts against the backing plate (6) at the rear side, and the backing plate (6) abuts against the main support rod (25) downward.

10. The pipeline support method according to claim 9, wherein The vibration caused by the shear force in the axial direction of the pipeline is absorbed by the first piezoelectric sheet, and the vibration in the radial direction of the pipeline is absorbed by the second piezoelectric sheet and converted into voltage and current. The voltage and current information of each first piezoelectric sheet and second piezoelectric sheet on the backing plate (6) is remotely transmitted through the signal transmission device by the controller. The guiding plates (9) are sequentially numbered 1, 2, … n in the left-right direction, and the voltage and current information of the corresponding first piezoelectric sheets is obtained. The sets An and Bn are obtained on the front and rear sides of the guiding plate (9) respectively as input information, and the deflection angle information of the pipeline and the contact position information between the backing plate (6) and the main support rod (25) are obtained through actual measurement as output information. A mapping relationship is established between the input information and the output information. When new voltage and current information is generated, the position information among the pipeline, the backing plate (6) and the main pipeline is obtained according to this mapping relationship to realize remote monitoring.

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