Sealing oil electric heat tracing equipment for piston oil groove and preparation oil tank

Abstract

The invention relates to the field of electric heat tracing equipment, and discloses electric heat tracing equipment for piston oil groove and prepared oil tank sealing oil, which comprises an assembly frame arranged in an annular oil groove area in a gas chamber main body, a heat tracing belt is arranged on the assembly frame, and the assembly frame is arranged on a piston plate in the gas chamber main body. An annular oil groove is defined between the piston plate and the inner wall of the gas chamber body, and the heat tracing band is used for heating sealing oil in the annular oil groove. The assembly frame is connected with a return piece. Through magnetic cooperation of the acting mechanism and the magnetic part, reciprocating disturbance of the driving assembly frame and the heat tracing band and cooperation with the arrangement of the reflecting plate, heat loss is reduced, targeted heating is achieved, the flowability and sealing performance of sealing oil are improved, meanwhile, impurities in oil are adsorbed by the magnetic part, and cleaning efficiency is improved through auxiliary disturbance of a sleeve through hole; and the guide rail and the sliding table can be separated, and the guide piece can be adjusted, so that the operation and maintenance are convenient, and the downtime is shortened.

Description

Technical Field

[0001] This invention relates to the field of electric heat tracing equipment technology, and more specifically, to an electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks. Background Technology

[0002] Dry gas holders are key large-scale facilities for storing coal gas (such as blast furnace gas and coke oven gas) in metallurgy, chemical industry, and urban gas fields. Unlike wet gas holders, they use dry sealing. The mainstream sealing method for MAN type gas holders is "thin oil sealing". There is an annular oil groove at the bottom of the gas holder, which is filled with special sealing oil. The piston of the gas holder (the movable top cover that can be raised and lowered, the piston plate in this article) forms an annular oil groove with the gas holder. By injecting sealing oil, a liquid oil seal is formed to prevent the gas inside the gas holder from leaking out. The oil groove, together with the external reserve oil tank, oil pump, separator, etc., forms a circulation system to realize the replenishment and circulation of oil. In low-temperature environments, the sealing oil system may solidify or become too viscous, leading to sealing failure, piston jamming, or even major safety and production accidents that force the gas holder to shut down.

[0003] In existing technologies, to ensure that the sealing oil reaches a suitable operating temperature, an integrated electric heating device is usually installed in the oil groove. These heating elements are generally arranged uniformly, resulting in a relatively consistent output heating temperature. However, in cold seasons or high-latitude regions, the oil groove is affected by low-temperature environments to varying degrees—for example, the side facing the prevailing winter wind or exposed to the outdoors dissipates heat faster—leading to uneven temperature distribution in different areas of the oil groove. This unevenness is further aggravated when the oil groove rises with the piston and comes into contact with the cooler inner wall of the gas holder, resulting in excessively low local oil temperatures or excessive temperature differences. This affects the fluidity and sealing performance of the sealing oil, ultimately adversely affecting the normal operation of the gas holder. Summary of the Invention

[0004] This invention provides an electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks, solving the technical problem of uneven heating temperature in related technologies.

[0005] This invention provides an electric heating device for sealing oil in piston oil grooves and pre-filled oil tanks, including an assembly frame disposed in an annular oil groove area inside the main body of a gas holder, the assembly frame being provided with a heating tape, the assembly frame being disposed on a piston plate inside the main body of the gas holder, the piston plate and the inner wall of the main body of the gas holder forming an annular oil groove, and the heating tape being used to heat the sealing oil in the annular oil groove. The assembly frame is connected to a return element, which is guided to the annular oil groove, allowing the assembly frame to move out along the guide direction; It also includes an action mechanism, which is used to change the position of the annular oil groove along the height direction of the gas holder body and is connected to the inner wall of the gas holder body for transmission. Magnetic components are installed on the assembly frame, and spaced magnetic areas are formed on the actuating mechanism; When the action mechanism moves relative to the inner wall of the gas holder as the height of the annular oil groove changes, its magnetic area intermittently applies magnetic force to the magnetic components, causing the heat tracing cable and the assembly frame to move and disturb, and adsorbing and removing impurities in the oil that are magnetically adsorbed.

[0006] As a further optimization of the present invention, the recovery component is connected to the inner wall of the annular oil groove via a guide rail, and the guide rail slide can be detached and moved out.

[0007] As a further optimization of the present invention, the recovery component includes a connecting rod and an elastic part. One end of the connecting rod is fixedly connected to the assembly frame, and the other end is connected to the slide of the guide rail through the elastic part.

[0008] As a further optimization of the present invention, the elastic part includes a spring and a sleeve. The sleeve is installed on the guide rail slide, and the other end is inserted by a connecting rod. One end of the spring is connected to the insertion end of the connecting rod, and the other end is connected to the sleeve.

[0009] As a further optimization of the present invention, the operating mechanism includes a bracket, which is installed inside the annular oil groove. A rotating roller that is driven by the inner peripheral wall of the gas holder body is rotatably arranged on the bracket. Multiple magnetic parts are embedded in the rotating roller, and the magnetic parts are magnetically engaged with the magnetic components.

[0010] As a further optimization of the present invention, a through hole is provided on the sleeve, and the through hole is used for the inlet and outlet of sealing oil. As a further optimization of the present invention, the outer edge of the magnetic part and the outer periphery of the rotating roller form a complete outer peripheral surface.

[0011] As a further optimization of the present invention, both the magnetic part and the magnetic component are magnetic blocks, and the magnetic part and the magnetic component have the same magnetism.

[0012] As a further optimization of the present invention, the annular oil groove is divided into multiple areas by a partition plate, and the partition plate is a reflector plate. The magnetic component is connected to the assembly frame by a connecting frame.

[0013] As a further optimization of the present invention, the assembly frame is connected to a guide rod, and the guide rod is connected to the piston plate through a guide member.

[0014] As a further optimization of the present invention, the guide includes a clamping plate and a screw. The clamping plate is slidably passed through by the guide rod and is divided into two sub-plates. One sub-plate is mounted on the piston plate and connected to the other sub-plate through the screw.

[0015] The beneficial effects of this invention are as follows: 1. The electric heating device for sealing oil in piston oil groove and pre-filled oil tank described in this invention, through the magnetic cooperation between the action mechanism and the magnetic component, drives the assembly frame and heating tape to generate reciprocating movement disturbance, thereby improving heat utilization rate. It can also achieve targeted heating for areas with different heat dissipation rates, reduce the problem of uneven temperature in different areas of the oil groove and abnormal viscosity of sealing oil caused by local low oil temperature under low temperature conditions, increase the fluidity of sealing oil and stabilize sealing performance, and reduce the failure of gas holder seals.

[0016] 2. The electric heating device for sealing oil in piston oil grooves and pre-filled oil tanks described in this invention, wherein the magnetic part of the action mechanism and the magnetic component of the mounting frame generate magnetic drive, can adsorb impurities (such as iron filings) in the sealing oil affected by magnetism, reducing the contamination of the sealing oil by impurities and the wear of equipment components; combined with the auxiliary disturbance of the sealing oil brought by the through hole of the sleeve, the impurity adsorption efficiency is further improved, the oil cleanliness is increased, which not only extends the replacement cycle of the sealing oil, but also reduces the wear of moving parts such as pistons and rollers, reducing equipment maintenance costs and failure risks.

[0017] 3. The electric heat tracing equipment for sealing oil in piston oil groove and pre-filled oil tank described in this invention can be detached via guide rail slide and is equipped with an adjustable structure of guide components, making the disassembly, inspection and replacement of the assembly frame and heat tracing cable more convenient and shortening downtime for maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the gas holder in this invention.

[0019] Figure 2 This is a schematic diagram of the piston plate structure in an electric heating device for sealing oil in piston oil grooves and pre-tank oil, as proposed in this invention.

[0020] Figure 3 This is a schematic diagram of the structure of a partition plate in an electric heating device for sealing oil in piston oil grooves and pre-tank oil, as proposed in this invention.

[0021] Figure 4 This is a schematic diagram of the overall structure of an electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks, as proposed in this invention.

[0022] Figure 5 This is a schematic diagram showing the disassembled structure of a recovery component in an electric heating device for sealing oil in piston oil grooves and pre-tank oil, as proposed in this invention.

[0023] In the picture: 1. Gas holder body; 101. Circular oil trench; 2. Assembly rack; 3. Tropical zone; 4. Piston plate; 5. Return piece; 51. Connecting rod; 52. Spring; 53. Sleeve; 6. Operating mechanism; 61. Support; 62. Rotating roller; 63. Magnetic component; 7. Magnetic components; 8. Guide rail; 9. Connecting frame; 10. Guide rod; 11. Plywood; 12. Screw; 13. Divider. Detailed Implementation

[0024] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0025] Example 1 like Figures 1 to 3 As shown in the embodiment of the present invention, an electric heating device for sealing oil in piston oil groove and pre-filled oil tank includes an assembly frame 2 disposed in the annular oil groove 101 area inside the gas holder body 1. The assembly frame 2 is composed of an outer frame and multiple rods. A heating tape 3 is disposed on the assembly frame 2. The heating tape 3 is distributed in a meandering manner and is connected to the assembly frame 2 by cable ties or buckles. The assembly frame 2 is disposed on the piston plate 4 inside the gas holder body 1. The piston plate 4 and the inner wall of the gas holder body 1 enclose an annular oil groove 101. The heating tape 3 is used to heat the sealing oil in the annular oil groove 101. The assembly frame 2 is connected to a return piece 5, which is guided to the annular oil groove 101, so that the assembly frame 2 can move out along the guide direction; It also includes an action mechanism 6, which is used for the positional change of the annular oil groove 101 along the height direction of the gas holder body 1 and is connected to the inner wall of the gas holder body 1 via transmission. A magnetic component 7 is mounted on the assembly frame 2, and a magnetic area is formed at intervals on the actuating mechanism 6; When the action mechanism 6 moves relative to the inner wall of the gas holder body 1 as the height of the annular oil groove 101 changes, its magnetic area intermittently applies magnetic force to the magnetic component 7, causing the heat tracing cable 3 and the mounting frame 2 to move and disturb, and adsorbing and removing impurities in the oil that are magnetically adsorbed.

[0026] Multiple sets of heating tape 3 are set up to generate heat after the heating tape 3 is powered on, directly heating the sealing oil in the annular oil groove 101. The heating is then controlled separately. When the annular oil groove 101 rises and falls with the piston plate 4, the action mechanism 6 and the inner wall of the gas holder body 1 are relatively driven. Its magnetic area intermittently approaches the magnetic component 7, and the assembly frame 2 is driven to move back and forth along the guide direction of the return component 5 through magnetic force. The return component 5 stores elastic potential energy when it is squeezed by the assembly frame 2. When the magnetic force weakens, it pulls the assembly frame 2 back to its original position, realizing continuous movement disturbance. At the same time, the magnetic force between the magnetic area and the magnetic component 7 can adsorb impurities in the sealing oil that are affected by magnetism (such as adsorbing iron filings → keeping the oil clean → extending the life of the oil and equipment → reducing system wear and maintenance costs).

[0027] The heating tape 3 moves with the assembly frame 2, reducing the limitations of fixed heating, making the sealing oil heat more evenly, reducing viscosity abnormalities caused by local low temperatures, and magnetic adsorption of impurities can reduce sealing oil contamination, increase sealing performance, and reduce the risk of piston jamming.

[0028] like Figure 4 As shown, the recovery piece 5 is connected to the inner wall of the annular oil groove 101 via the guide rail 8, and the guide rail 8 slide can be detached and removed. For easy disassembly, the assembly frame 2 is connected to a guide rod 10. The guide rod 10 is connected to the piston plate 4 via a guide member. The guide member includes a clamping plate 11 and a screw 12. The clamping plate 11 is slidably passed through by the guide rod 10 and is divided into two sub-plates. One sub-plate is installed on the piston plate 4 and is connected to the other sub-plate via the screw 12.

[0029] If the assembly frame 2 and the heat tracing cable 3 need to be repaired or replaced, turn the screw 12 to disconnect the connection between the two sub-plates, thereby releasing the vertical position limit of the guide rod 10. The slide of the guide rail 8, together with the return piece 5 and the assembly frame 2, can be directly removed from the guide rail 8 to achieve maintenance.

[0030] like Figure 4 As shown, the recovery component 5 includes a connecting rod 51 and an elastic part. One end of the connecting rod 51 is fixedly connected to the assembly frame 2, and the other end is connected to the slide of the guide rail 8 through the elastic part.

[0031] When the magnetic drive assembly frame 2 moves, the assembly frame 2 drives the connecting rod 51, causing the elastic part to undergo elastic deformation. When the magnetic force weakens, the deformation of the elastic part recovers, generating a reverse force, which pulls the assembly frame 2 back to the initial position through the connecting rod 51, completing one reciprocating disturbance.

[0032] Furthermore, such as Figure 5 As shown, the elastic part includes a spring 52 and a sleeve 53. The sleeve 53 is mounted on the slide of the guide rail 8, and the other end is inserted by the connecting rod 51. One end of the spring 52 is connected to the insertion end of the connecting rod 51, and the other end is connected to the sleeve 53.

[0033] When the assembly frame 2 moves the connecting rod 51, the connecting rod 51 slides inside the sleeve 53, compressing the spring 52. The spring 52 stores elastic potential energy. When the magnetic force disappears, the spring 52 releases the elastic potential energy, pushing the connecting rod 51 to move in the opposite direction, thereby driving the assembly frame 2 to reset.

[0034] like Figure 4 As shown, the operating mechanism 6 includes a bracket 61, which is installed inside the annular oil groove 101. A rotating roller 62 is rotatably mounted on the bracket 61 and drives the inner peripheral wall of the gas holder body 1. Multiple magnetic parts 63 are embedded in the rotating roller 62, and the magnetic parts 63 are magnetically engaged with the magnetic component 7. The magnetic component 7 is connected to the assembly frame 2 through the connecting frame 9.

[0035] When the annular oil groove 101 moves along the height direction of the gas holder body 1 with the piston plate 4, the rotating roller 62 rotates with the inner peripheral wall of the gas holder body 1. The rotating roller 62 drives the internal magnetic part 63 to rotate synchronously. During the rotation, the magnetic part 63 intermittently faces the magnetic component 7, generating a magnetic force and driving the assembly frame 2 to move.

[0036] The rotating roller 62 is driven by the lifting motion of the annular oil groove 101, without the need for an additional power source. The magnetic part 63 rotates with the rotating roller 62 to achieve intermittent magnetic force, so that the disturbance frequency of the assembly frame 2 is matched with the lifting speed of the annular oil groove 101.

[0037] The outer edge of the magnetic part 63 and the outer periphery of the rotating roller 62 form a complete outer peripheral surface, which is adapted to the inner peripheral wall of the gas holder body 1.

[0038] The outer edge of the magnetic part 63 is flush with the outer peripheral surface of the roller 62, together forming a complete outer peripheral surface. The outer peripheral surface of the roller 62 is in close contact with the inner peripheral wall of the gas holder body 1.

[0039] When the roller 62 rotates, its outer peripheral surface contacts the inner peripheral wall of the gas holder body 1, which increases the smoothness of the roller 62's rotation and thus increases the stability of the fit between the magnetic part 63 and the magnetic component 7.

[0040] Both the magnetic part 63 and the magnetic component 7 are magnetic blocks, and the magnetic parts 63 and the magnetic components 7 have the same magnetism.

[0041] When the rotating roller 62 drives the magnetic part 63 to rotate to a position close to the magnetic component 7, the same magnetic poles generate a repulsive force, which pushes the magnetic component 7 to move the assembly frame 2 away from the rotating roller 62. At the same time, the spring 52 is compressed. When the magnetic part 63 rotates away from the magnetic component 7, the repulsive force is reduced or disappears, and the spring 52 drives the assembly frame 2 to reset, realizing reciprocating disturbance.

[0042] Example 2 Based on Example 1, such as Figure 5As shown, the sleeve 53 has a through hole, which allows the sealing oil to be sucked and discharged as the connecting rod 51 continuously changes its length inside the sleeve 53, thus playing an auxiliary disturbance role and increasing the uniformity of the sealing oil temperature.

[0043] Example 3 Based on Embodiment 2, the annular oil groove 101 is divided into multiple areas by a partition plate 13, and the partition plate 13 is a reflector with multiple flow holes.

[0044] The partition plate 13 divides the annular oil groove 101 into multiple small areas. The turbulent heating of the heat tracing cable 3 is carried out in each area. The partition plate 13 acts as a reflector, which can reflect the heat generated by the heat tracing cable 3, reduce the heat loss to the inner wall of the gas holder body 1, and improve the heat utilization rate. The heat preservation effect of the reflector reduces energy consumption and improves heating efficiency.

[0045] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks, comprising an assembly frame (2) disposed in the annular oil groove (101) area inside the main body (1) of a gas holder, wherein a heat tracing cable (3) is disposed on the assembly frame (2), characterized in that: The assembly frame (2) is set on the piston plate (4) inside the gas holder body (1). The piston plate (4) and the inner wall of the gas holder body (1) form an annular oil groove (101). The heating tape (3) is used to heat the sealing oil in the annular oil groove (101). The assembly frame (2) is connected to a return piece (5), which is guided to the annular oil groove (101), so that the assembly frame (2) can be moved out along the guide direction; It also includes an action mechanism (6), which is used for the position change of the annular oil groove (101) along the height direction of the gas holder body (1) and is connected to the inner wall of the gas holder body (1) for transmission. A magnetic component (7) is installed on the assembly frame (2), and a magnetic area is formed on the actuating mechanism (6) at intervals; When the action mechanism (6) moves relative to the inner wall of the gas holder body (1) as the height of the annular oil groove (101) changes, its magnetic area intermittently applies magnetic force to the magnetic component (7), causing the heat tracing cable (3) and the mounting frame (2) to move and disturb, and adsorb and remove impurities in the oil that are magnetically adsorbed.

2. The electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 1, characterized in that: The reply piece (5) is connected to the inner wall of the annular oil groove (101) via the guide rail (8), and the guide rail (8) slide can be detached and removed.

3. The electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 2, characterized in that: The response component (5) includes a connecting rod (51) and an elastic part. One end of the connecting rod (51) is fixedly connected to the assembly frame (2), and the other end is connected to the slide of the guide rail (8) through the elastic part.

4. The electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 3, characterized in that: The elastic part includes a spring (52) and a sleeve (53). The sleeve (53) is mounted on the slide of the guide rail (8), and the other end is inserted by the connecting rod (51). One end of the spring (52) is connected to the insertion end of the connecting rod (51), and the other end is connected to the sleeve (53).

5. The electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 1, characterized in that: The action mechanism (6) includes a bracket (61), which is installed inside the annular oil groove (101). A rotating roller (62) is rotatably mounted on the bracket (61) and drives the inner circumferential wall of the gas holder body (1). Multiple magnetic parts (63) are embedded in the rotating roller (62), and the magnetic parts (63) are magnetically engaged with the magnetic component (7).

6. The electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 4, characterized in that: The sleeve (53) has a through hole for the inlet and outlet of sealing oil.

7. The electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 5, characterized in that: Both the magnetic part (63) and the magnetic component (7) are magnetic blocks, and the magnetic part (63) and the magnetic component (7) have the same magnetism.

8. The electric heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 7, characterized in that: The annular oil trench (101) is divided into multiple areas by a partition plate (13), and the partition plate (13) is a reflector.

9. A heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 8, characterized in that: The assembly frame (2) is connected to a guide rod (10), which is connected to the piston plate (4) through a guide member.

10. A heat tracing device for sealing oil in piston oil grooves and pre-filled oil tanks according to claim 9, characterized in that: The guide includes a clamping plate (11) and a screw (12). The clamping plate (11) is slidably passed through by the guide rod (10) and is divided into two sub-plates. One sub-plate is mounted on the piston plate (4) and connected to the other sub-plate through the screw (12).

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