Heatable power transmission line tower base

Abstract

The invention discloses a heatable power transmission line tower base, relates to the technical field of anti-freezing and anti-pulling of power transmission line towers, and aims to solve the problems that an existing power transmission line tower base is high in construction difficulty and inconvenient for rapid erection of a power transmission line. Comprising a pile foundation cylinder, a pile foundation cylinder base, a pile foundation cylinder inner supporting column, an arc-shaped heat conduction pipe, a heating rod and a liquid circulating pump. A mounting cavity is formed in the pile foundation cylinder, a supporting column in the pile foundation cylinder is embedded in the mounting cavity, two vertical grooves are symmetrically formed in the cavity wall of the mounting cavity, two diameter-expanding wing plates are symmetrically arranged on the outer wall of the lower portion of the pile foundation cylinder and correspond to the two vertical grooves respectively, a channel is formed in each diameter-expanding wing plate, and the diameter-expanding wing plates correspond to the two vertical grooves respectively. The device is used for heating surrounding soil through the transmission tower base, so that the soil cannot generate frost heaving, and the frost heaving phenomenon is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of anti-freezing and pulling out of transmission line pole towers, and in particular to a heatable transmission line pole tower base. Background Art

[0002] my country's infrastructure construction is carried out on a large scale in the frozen soil areas of my country. Research on the main linear projects in these areas has found that the transmission line towers located in the frozen soil areas have serious frost pullout problems. In winter, the temperature is below zero, and the soil frost heaves. The lateral soil frost heave of the transmission line tower produces an upward tangential frost heave force acting on the tower. When the sum of the deadweight of the transmission line tower and the friction between the tower and the soil is not enough to balance the tangential frost heave force between the soil and the base of the transmission line tower, the tower pulls up. As time goes by and the number of freeze-thaw cycles increases, the transmission line tower may even tilt, thus affecting the normal use of the tower. We call this phenomenon the frost pullout phenomenon.

[0003] Application number CN115653011B discloses a device for preventing freezing and thawing. Anchor rods are currently added circumferentially at the bottom of the transmission line tower base and buried in the foundation. The anchor rods anchor the soil and the transmission line tower base together to increase the vertical anti-freezing and anti-lifting force. However, this method will greatly increase the difficulty of construction and is not convenient for the rapid erection of transmission lines. Summary of the invention

[0004] In order to solve the problems of high construction difficulty and inconvenience in rapid erection of transmission lines in existing transmission line tower bases, the present invention further provides a heatable transmission line tower base to solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is:

[0006] A heatable transmission line tower base comprises a pile foundation tube, a pile foundation tube base, an internal support column of the pile foundation tube, an arc-shaped heat conducting pipe, a heating rod and a liquid circulation pump;

[0007] An installation cavity is provided in the pile foundation tube, and the support column inside the pile foundation tube is embedded in the installation cavity. Two vertical grooves and a channel connected to the vertical grooves are symmetrically arranged on the cavity wall of the installation cavity. An arc-shaped heat-conducting pipe is arranged at the lower end of the pile foundation tube, and the vertical grooves, the channel and the arc-shaped heat-conducting pipe are connected in sequence.

[0008] A liquid circulation pump is arranged in the pile foundation cylinder, and the water outlet and return port of the liquid circulation pump are respectively connected with the two vertical grooves; a heating rod installation groove is also arranged on the outer wall of the supporting column inside the pile foundation cylinder, and a heating rod is embedded in the heating rod installation groove, and the heating rod is used to heat the oil in the vertical groove.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] A heatable transmission line tower base is provided with a temperature sensor capable of detecting temperature, and an arc-shaped heat conducting pipe and a heating rod for heating frozen soil. When it is detected that the temperature drops to a level where freeze heave may occur, the heating rod and a liquid circulation pump are started to heat the frozen soil close to the transmission line tower base, so that the soil cannot frost heave, thereby preventing the occurrence of freeze heave. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the installation of the transmission line tower base and foundation of the present invention;

[0012] Figure 2 for Figure 1 Schematic diagram of longitudinal section;

[0013] Figure 3 for Figure 2 An enlarged schematic diagram of point A;

[0014] Figure 4 It is a longitudinal cross-sectional schematic diagram of the pile foundation tube of the present invention;

[0015] Figure 5 This is a longitudinal section diagram of the pile foundation tube and the supporting column inside the pile foundation tube in the combined state of the present invention;

[0016] Figure 6 It is a schematic longitudinal section diagram of the entire base of a power transmission line tower of the present invention;

[0017] Figure 7 It is an enlarged schematic diagram of the top structure of the transmission line tower base section of the present invention.

[0018] In the figure: 0, foundation; 1, including pile foundation tube; 11, installation cavity; 13, first threading hole; 14, vertical groove; 15, expansion wing plate; 151, groove; 152, installation hole; 2, pile foundation tube top seat; 3, pile foundation tube base; 31, threaded tube; 32, threaded drill rod; 33, protective cap; 34, third threading hole; 4, transmission line tower connecting frame; 41, bottom plate; 42, half box body; 43, transmission line tower body; 5, support column; 51, equipment installation cavity; 52, second threading hole; 53, flow channel hole; 54, heating rod installation groove; 55, liquid circulation pump; 56, fourth threading hole; 6, arc-shaped heat pipe; 7, temperature sensor; 8, heating rod; 10, foundation hole. DETAILED DESCRIPTION

[0019] Specific implementation method 1: See Figure 1-7 As shown, a heatable transmission line tower base, this embodiment includes a pile foundation tube 1, a pile foundation tube base 3, a pile foundation tube internal support column 5, an arc-shaped heat conducting pipe 6, a heating rod 8 and a liquid circulation pump 55;

[0020] An installation cavity 11 is provided in the pile foundation tube 1, and a support column 5 inside the pile foundation tube is embedded in the installation cavity 11. Two vertical grooves 14 and a channel 151 connected to the vertical grooves 14 are symmetrically provided on the cavity wall of the installation cavity 11. An arc-shaped heat-conducting pipe 6 is provided at the lower end of the pile foundation tube 1, and the vertical grooves 14, the channel 151 and the arc-shaped heat-conducting pipe 6 are connected in sequence.

[0021] A liquid circulation pump 55 is arranged in the pile foundation tube 1, and the water outlet and the water return port of the liquid circulation pump 55 are respectively connected to the two vertical grooves 14; a heating rod installation groove 54 is also arranged on the outer wall of the supporting column 5 inside the pile foundation tube, and a heating rod 8 is embedded in the heating rod installation groove 54, and the heating rod 8 is used to heat the oil in the vertical groove 14.

[0022] Specific implementation method 2: See Figure 4 As shown, a heatable transmission line tower base, two expanded diameter wing plates 15 are symmetrically arranged on the outer wall of the lower part of the pile foundation tube 1 of this embodiment, the two expanded diameter wing plates 15 correspond to the two vertical grooves 14 respectively, and the groove 151 is respectively arranged in each expanded diameter wing plate 15, and multiple groups of mounting through holes 152 are provided on the two expanded diameter wing plates 15, and each group of mounting through holes 152 is fixed with an arc-shaped heat-conducting pipe 6 which is perpendicular to the axial direction of the pile foundation tube 1, and the arc-shaped heat-conducting pipe 6 is connected with the groove 151 through the mounting through holes 152;

[0023] Specific implementation method three: see Figure 1-4 As shown, a heatable transmission line tower base is provided. The top of the support column 5 inside the pile foundation cylinder of this embodiment is provided with an equipment installation cavity 51. Two flow channel holes 53 corresponding to the vertical groove 14 are symmetrically provided on the cylinder wall of the equipment installation cavity 51. The water outlet and the water return port of the liquid circulation pump 55 are connected to the vertical groove 14 through the flow channel holes 53.

[0024] Furthermore, the installation cavity 11 is cylindrical, and the installation cavity 11 and its inner diameter are matched with the clearance of the support column 5 inside the pile foundation tube. The arc-shaped heat-conducting pipe 6 can increase the contact area between the base and the soil to increase the heating efficiency of the soil, and the two expanded wing plates 15 play a supporting role for the arc-shaped heat-conducting pipe 6. When the support column 5 inside the pile foundation tube is embedded in the installation cavity 11 inside the pile foundation tube 1, the vertical groove 14 forms a liquid flow channel, and the two flow channel holes 53 correspond to and communicate with the two vertical grooves 14 one by one, and the water outlet of the liquid circulation pump 55 is connected to one of the flow channel holes 53, and the water return port of the liquid circulation pump 55 is connected to the other flow channel hole 53. Thus, the outlet of the liquid circulation pump 55, the flow channel hole 53 on the left, the vertical groove 14 on the left, the channel 151 on the left, the multiple groups of arc-shaped heat-conducting pipes 6, the channel 151 on the right, the vertical groove 14 on the right, the flow channel hole 53 on the right to the return water port of the liquid circulation pump 55 are sequentially formed into a liquid circulation channel. The liquid circulation channel is filled with oil, so that the circulation of the oil can be achieved under the action of the liquid circulation pump 55. When the temperature that will cause freeze-drawing is reached, the liquid circulation pump 55 and the heating rod 8 are started, and the heating rod 8 heats the oil flowing through the vertical groove 14, so that under the action of the liquid circulation pump 55 and the heating rod, the circulation heating of the oil can be achieved, and the heat is dissipated to the surrounding soil, effectively raising the temperature of the surrounding soil, and avoiding excessive freeze-drawing effect caused by too low temperature. The oil circuit heating has a larger heating range and a higher heat transfer coefficient than the traditional resistance wire, so that the entire side of the pipe wall can be heated.

[0025] Specific implementation method four: see Figure 1-3 As shown, a heatable transmission line tower base, a pile foundation cylinder top seat 2 is fixed on the top of the pile foundation cylinder 1 of this embodiment, a transmission line tower connecting frame 4 is fixed on the pile foundation cylinder top seat 2, and the transmission line tower connecting frame 4 is used to connect with the bottom support foot of the transmission line tower body;

[0026] Furthermore, the transmission line tower connecting frame 4 is fixedly installed on the pile foundation cylinder top seat 2 by a bolt assembly, and the transmission line tower connecting frame 4 plays a supporting and connecting role. Each transmission line tower connecting frame 4 is fixedly connected to one of the legs at the bottom of the transmission line tower body by bolts.

[0027] Furthermore, the transmission line tower connecting frame 4 includes a base plate 41 and a half box body 42. The half box body 42 is fixedly welded above the base plate 41. The half box body 42 and the base plate 41 form a square chamber, and the square chamber is located above the axis of the pile foundation tube 1. The base plate 41 is connected to the pile foundation tube top seat 2 through a bolt assembly. The half box body 42 is used to connect with the transmission line tower body 43. The base plate 41 should also be located on the cylinder wall of the pile foundation tube 1 below the equipment installation cavity 51, and the equipment installation cavity 51 part can be accommodated inside the half box body 42.

[0028] Specific implementation method five: see Figure 3 As shown, a heatable transmission line tower base, a pile foundation tube base 3 is fixed to the bottom of the pile foundation tube 1 of this embodiment, a plurality of threaded tubes 31 are evenly arranged circumferentially on the pile foundation tube base 3, a threaded drill rod 32 is installed in each threaded tube 31, the threaded drill rod 32 is used to drill into the foundation, and a protective cap 33 is installed on the top of the threaded drill rod 32;

[0029] Specific implementation method six: see Figure 3 As shown, a heatable transmission line tower base, the pile foundation cylinder base 3 of this embodiment is set to an inverted cone shape;

[0030] Furthermore, during construction, after the pile foundation tube 1 is inserted into the soil, the threaded drill rod 32 is rotated and drilled into the foundation to achieve preliminary fixation of the pile foundation tube 1. The inverted cone-shaped tube base 3 can be easily installed downward, and then the soil is backfilled and compacted to complete the fixed installation of the transmission line tower base.

[0031] Specific implementation method seven: See Figure 4-7 As shown, a heatable transmission line tower base is provided. The bottom of the pile foundation tube 1 of this embodiment is provided with a first threading hole 13, and the axis of the support column 5 inside the pile foundation tube is provided with a second threading hole 52, the bottom end of the second threading hole 52 is communicated with the first threading hole 13, and the axis of the pile foundation tube base 3 is provided with a third threading hole 34, the top of the third threading hole 34 is communicated with the bottom of the first threading hole 13, and a temperature sensor 7 is embedded at the bottom of the pile foundation tube base 3, and the cable of the temperature sensor 7 is sequentially led through the third threading hole 34, the first threading hole 13 and the second threading hole 52 to the equipment installation inner cavity 51 at the top of the support column 5 inside the pile foundation tube;

[0032] Specific implementation method eight: See Figure 4-7 As shown, a heatable transmission line tower base, in this embodiment, the heating rod installation groove 54 of the support column 5 inside the pile foundation tube is also provided with a transverse fourth threading hole 56, the fourth threading hole 56 is connected with the second threading hole 52, and the cable of the heating rod 8 is led into the equipment installation cavity 51 through the fourth threading hole 56 and the second threading hole 52;

[0033] Specific implementation method nine: See Figure 4-7 As shown, a heatable transmission line tower base, in this embodiment, the cable of the heating rod 8 and the fourth threading hole 56 are sealed to prevent oil from penetrating the fourth threading hole 56;

[0034] Specific implementation method ten: See Figure 4-7As shown, a heatable transmission line tower base, the device installation cavity 51 of this embodiment is also provided with a controller, and the controller controls the start and stop of the heating rod 8 and the liquid circulation pump 55 through the feedback of the temperature sensor 7;

[0035] Furthermore, a heating rod installation groove 54 is also provided on the outer wall of the support column 5 inside the pile foundation tube, and the number of the heating rod installation grooves 54 is preferably two, corresponding to the position of the vertical groove 14. A controller is also provided in the equipment installation inner cavity 51, and the temperature sensor 7, the heating rod 8 and the liquid circulation pump 55 are all electrically connected to the controller, and the controller automatically controls the heating rod 8 and the liquid circulation pump 55 to perform circulation heating according to the detection data of the temperature sensor 7.

Claims

1. A heatable transmission line tower base, comprising a pile foundation tube (1) and a pile foundation tube base (3), characterized in that: It also includes a support column (5) inside the pile foundation tube, an arc-shaped heat-conducting pipe (6), a heating rod (8) and a liquid circulation pump (55); A mounting cavity (11) is provided in the pile foundation tube (1), a supporting column (5) inside the pile foundation tube is embedded in the mounting cavity (11), two vertical grooves (14) and a channel (151) connected to the vertical grooves (14) are symmetrically provided on the cavity wall of the mounting cavity (11), an arc-shaped heat-conducting pipe (6) is provided at the lower end of the pile foundation tube (1), and the vertical grooves (14), the channel (151) and the arc-shaped heat-conducting pipe (6) are connected in sequence; A liquid circulation pump (55) is arranged in the pile foundation tube (1), and a water outlet and a water return outlet of the liquid circulation pump (55) are respectively connected to the two vertical grooves (14); a heating rod installation groove (54) is also arranged on the outer wall of the support column (5) inside the pile foundation tube, and a heating rod (8) is embedded in the heating rod installation groove (54), and the heating rod (8) is used to heat the oil in the vertical groove (14).

2. The heatable transmission line tower base according to claim 1, characterized in that: Two expanded diameter wing plates (15) are symmetrically arranged on the outer wall of the lower part of the pile foundation tube (1), and the two expanded diameter wing plates (15) correspond to the two vertical grooves (14) respectively. A groove (151) is arranged in each expanded diameter wing plate (15), and a plurality of groups of mounting through holes (152) are provided on the two expanded diameter wing plates (15). An arc-shaped heat-conducting pipe (6) perpendicular to the axial direction of the pile foundation tube (1) is fixed on each group of mounting through holes (152), and the arc-shaped heat-conducting pipe (6) is connected to the groove (151) through the mounting through holes (152).

3. The heatable transmission line tower base according to claim 1, characterized in that: A device installation inner cavity (51) is provided at the top of the support column (5) inside the pile foundation cylinder, and two flow channel holes (53) corresponding to the vertical groove (14) are symmetrically provided on the cylinder wall of the device installation inner cavity (51), and the water outlet and return port of the liquid circulation pump (55) are connected to the vertical groove (14) through the flow channel holes (53).

4. The heatable transmission line tower base according to claim 1, characterized in that: A pile foundation tube base (3) is fixed at the bottom of the pile foundation tube (1), and a plurality of threaded tubes (31) are evenly arranged circumferentially on the pile foundation tube base (3), and a threaded drill rod (32) is installed in each threaded tube (31), and the threaded drill rod (32) is used to drill into the foundation.

5. The heatable transmission line tower base according to claim 4, characterized in that: The pile foundation cylinder base (3) is configured to be in the shape of an inverted cone.

6. The heatable transmission line tower base according to claim 1, characterized in that: The bottom of the pile foundation tube (1) is provided with a first threading hole (13), the axis of the support column (5) inside the pile foundation tube is provided with a second threading hole (52), the bottom end of the second threading hole (52) is communicated with the first threading hole (13), the axis of the pile foundation tube base (3) is provided with a third threading hole (34), the top of the third threading hole (34) is communicated with the bottom of the first threading hole (13), a temperature sensor (7) is embedded in the bottom of the pile foundation tube base (3), and the cable of the temperature sensor (7) is sequentially led through the third threading hole (34), the first threading hole (13) and the second threading hole (52) to the equipment installation cavity (51) at the top of the support column (5) inside the pile foundation tube.

7. The heatable transmission line tower base according to claim 6, characterized in that: A fourth transverse threading hole (56) is also provided at the heating rod installation groove (54) of the support column (5) inside the pile foundation tube. The fourth threading hole (56) is connected to the second threading hole (52). The cable of the heating rod (8) is led into the equipment installation inner cavity (51) through the fourth threading hole (56) and the second threading hole (52).

8. The heatable transmission line tower base according to claim 7, characterized in that: A seal is provided between the cable of the heating rod (8) and the fourth threading hole (56) to prevent oil from passing through the fourth threading hole (56).

9. The heatable transmission line tower base according to claim 8, characterized in that: A controller is also provided in the device installation inner cavity (51), and the controller controls the start and stop of the heating rod (8) and the liquid circulation pump (55) through feedback from the temperature sensor (7).

10. The heatable transmission line tower base according to claim 1, characterized in that: A pile foundation cylinder top seat (2) is fixed on the top of the pile foundation cylinder (1), a power transmission line pole tower connection frame (4) is fixed on the pile foundation cylinder top seat (2), and the power transmission line pole tower connection frame (4) is used to connect with the bottom support foot of the power transmission line pole tower body.

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