Gas turbine preheating boiler hanging beam heat insulation structure

Abstract

The utility model provides a gas turbine preheating boiler hanging beam heat insulation structure. The gas turbine preheating boiler hanging beam heat insulation structure comprises a first supporting sleeve and a second supporting sleeve, the top of the first supporting sleeve is movably sleeved with a lifting column, the top of the lifting column is fixedly connected with a positioning seat, and I-shaped steel is fixedly sleeved with the positioning seat. According to the gas turbine preheating boiler hanging beam heat insulation structure, the heat insulation sleeve is arranged, when the hanging beam is installed and fixed, the cross beam is fixedly connected into the heat insulation sleeve in a sleeved mode, cooling liquid is injected into the heat insulation sleeve at the moment, and the heat insulation sleeve is fixed to the top of the I-shaped steel through the cross beam; therefore, the effect of fixing the heat insulation sleeve and the hanging ring is achieved, cooling liquid can cool the heat insulation sleeve which is continuously baked, the problem that the service life of the heat insulation sleeve is shortened due to frequent thermal expansion and cold contraction when the heat insulation sleeve is baked for a long time is solved, and the service life of the hanging beam is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of thermal insulation structures, in particular to a thermal insulation structure of a hanging beam of a combustion engine preheating boiler. Background Art

[0002] Numerous compressor stations are built along natural gas pipelines, such as those used in the West-East Gas Pipeline. These stations use gas turbines to drive compressors, boosting the pressure of natural gas during transmission to offset the pressure drop caused by long-distance transportation. The flue gas emitted by gas turbines reaches temperatures approaching 500°C and has a high flow rate. This flue gas is discharged directly without being utilized, resulting in energy waste. Existing technologies utilize gas turbine waste heat boilers (WHRBs) to recycle this waste heat. Their primary operating principle is to absorb the waste heat from the gas turbine exhaust through a large number of heat exchange tubes, generating steam that can be used to power steam turbines or as heat for other processes. Existing WHRBs often utilize a hanging support system to support heating surface components such as superheaters, economizers, and evaporators. Existing hanging structures include several hanger plates and hanging beams. The upper edges of the hanger plates are fixed to the hanging beams, and the lower edges of the hanger plates are fixed to the headers of the heating surface components via pins. However, the elbows connecting the headers to the pipes are susceptible to wear. However, due to the densely packed tube panels, repairs are often difficult, requiring the panels to be dismantled before repairs can be performed. This greatly increases the difficulty of operation and reduces work efficiency, and also increases the probability of component damage or safety accidents during frequent disassembly and assembly.

[0003] In the existing technology, such as the "A Gas Turbine Waste Heat Boiler" with the Chinese Authorization Announcement No. CN205048404U, it includes a boiler steel frame, a hanging system and a heating surface component, the heating surface component includes a header and pipe fittings, the hanging system includes a hanger, a hanging beam and a pin positioning structure, the upper end of the hanger is provided with a long thread, the portion of the hanger with the long thread is positioned on the hanging beam through a threaded fastening assembly, and the lower end of the hanger plate is connected to the header through a pin positioning structure. The utility model is suitable for fitness equipment. The utility model has the following beneficial effects: (1) the structure of the hanging system is improved, which is convenient for inspection and maintenance work intensity and improves safety; (2) the hanging and positioning of the heating surface component is stable and durable.

[0004] In the existing technology, when fixing the boiler, the hanging beam is usually located directly above the boiler, so the hanging beam needs to be baked at high temperature for a long time by the boiler, which leads to a problem that the service life of the hanging beam is greatly reduced due to frequent sudden cooling and heating.

[0005] Therefore, it is necessary to provide a combustion engine preheating boiler hanging beam insulation structure to solve the above technical problems. Utility Model Content

[0006] The utility model provides a heat insulation structure for a hanging beam of a gas turbine preheating boiler, which solves the problem that the service life of the hanging beam is greatly reduced due to frequent sudden cooling and heating.

[0007] The lifting column is fixedly connected to the lifting post by a lifting mechanism, and the lifting column is fixedly connected to the lifting post by a lifting mechanism.

[0008] Preferably, the front shape of the thermal insulation sleeve is conical, and the material of the thermal insulation sleeve is manganese steel.

[0009] Preferably, the number of the air diffusion holes is five, and the five air diffusion holes are evenly distributed directly above the thermal insulation sleeve.

[0010] Preferably, the adjustment mechanism includes a bolt, the bolt is threadedly sleeved inside the No. 1 support sleeve, and a positioning groove is provided on the front side of the lifting column.

[0011] Preferably, the anti-skid tooth plate is in close contact with the bottom of the I-beam, and the anti-skid tooth plate is located directly above the lifting column.

[0012] Preferably, there are several sliding balls, which are evenly distributed on the sides of the lifting column.

[0013] Preferably, the reinforcing mechanism includes a No. 1 connecting column, which is fixedly connected to the outside of the No. 1 support sleeve, the outside of the No. 1 support sleeve is fixedly connected to a No. 2 connecting column, and the top of the No. 1 connecting column is fixedly connected to a support column.

[0014] Preferably, the anti-slip mechanism includes a threaded column, the threaded column is threadedly sleeved on the bottom of the No. 1 support sleeve, and the bottom of the threaded column is fixedly connected to an anti-slip seat.

[0015] Compared with the related art, the thermal insulation structure of the hanging beam of the gas turbine preheating boiler provided by the present invention has the following beneficial effects:

[0016] The utility model provides a heat insulation structure for a hanging beam of a gas turbine preheating boiler. By arranging a heat insulation sleeve, when the hanging beam is installed and fixed, the crossbeam is fixedly sleeved inside the heat insulation sleeve. At this time, coolant is injected into the heat insulation sleeve, so that the crossbeam can fix the heat insulation sleeve to the top of the I-beam, thereby achieving a fixing effect of the heat insulation sleeve and the hanging ring, and allowing the coolant to cool the heat insulation sleeve that is continuously heated, thereby avoiding the problem of frequent thermal expansion and contraction of the heat insulation sleeve when it is heated for a long time, which leads to a reduction in the service life of the heat insulation sleeve, thereby improving the service life of the hanging beam.

[0017] By setting up an adjustment mechanism, when adjusting the height of the I-beam, the bolt is rotated so that the bolt can be moved out of the positioning slot, so that the lifting column can move up and down inside the No. 1 support sleeve, that is, driving the I-beam to move up and down, thereby achieving the effect of adjusting the height of the beam, and thus bringing convenience to the height adjustment of the hanging beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a preferred embodiment of a heat insulation structure of a hanging beam of a gas turbine preheating boiler provided by the utility model;

[0019] Figure 2 for Figure 1 A front view of a thermal insulation structure of a hanging beam of a gas turbine preheating boiler is shown;

[0020] Figure 3 for Figure 1 A front view of a heat-insulating sleeve in a heat-insulating structure of a hanging beam of a gas turbine preheating boiler is shown;

[0021] Figure 4 for Figure 1 A front view of a lifting column in a thermal insulation structure of a hanging beam of a gas turbine preheating boiler is shown.

[0022] Numbers in the figure: 1. Support sleeve No. 1; 2. Support sleeve No. 2; 3. Lifting column; 4. Positioning seat; 5. I-beam; 6. Crossbeam; 7. Insulation sleeve; 8. Air diffusion hole; 9. Sealing plug; 10. Insulation board; 11. Lifting ring; 12. Adjustment mechanism; 121. Bolt; 122. Positioning groove; 13. Anti-slip tooth plate; 14. Sliding ball; 15. Reinforcement mechanism; 151. Connecting column No. 1; 152. Connecting column No. 2; 153. Support column; 16. Anti-slip mechanism; 161. Threaded column; 162. Anti-slip seat. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4,in, Figure 1 This is a structural schematic diagram of a preferred embodiment of a heat insulation structure of a hanging beam of a gas turbine preheating boiler provided by the utility model; Figure 2 for Figure 1 A front view of a thermal insulation structure of a hanging beam of a gas turbine preheating boiler is shown; Figure 3 for Figure 1 A front view of a heat-insulating sleeve in a heat-insulating structure of a hanging beam of a gas turbine preheating boiler is shown; Figure 4 for Figure 1 A front view of a lifting column in a heat insulation structure for a gas turbine preheating boiler hanging beam is shown. A heat insulation structure for a gas turbine preheating boiler hanging beam comprises a No. 1 support sleeve 1 and a No. 2 support sleeve 2. The top of the No. 1 support sleeve 1 is movably connected to a lifting column 3. The top of the lifting column 3 is fixedly connected to a positioning seat 4. An I-beam 5 is fixedly connected to the interior of the positioning seat 4. A crossbeam 6 is fixedly connected to the top of the I-beam 5. An insulating sleeve 7 is fixedly connected to one end of the crossbeam 6. The top of the insulating sleeve 7 is provided with air diffusion holes 8. A sealing plug 9 is threadedly connected to the top of the insulating sleeve 7. An insulating plate 10 is fixedly connected to the bottom of the crossbeam 6. A lifting ring 11 is fixedly connected to the bottom of the insulating sleeve 7. An adjustment mechanism 12 is provided on the front of the No. 1 support sleeve 1. An anti-slip tooth plate 13 is fixedly connected to the bottom of the inner cavity of the positioning seat 4. A sliding ball 14 is movably connected to the side of the lifting column 3. A reinforcement mechanism 15 is provided on the outside of the No. 1 support sleeve 1. An anti-slip mechanism 16 is provided on the bottom of the No. 1 support sleeve 1.

[0025] The front shape of the thermal insulation sleeve 7 is conical, and the material of the thermal insulation sleeve 7 is manganese steel. By setting the thermal insulation sleeve 7, when the hanging beam is installed and fixed, the crossbeam 6 is fixedly sleeved inside the thermal insulation sleeve 7. At this time, the coolant is injected into the thermal insulation sleeve 7, so that the crossbeam 6 can fix the thermal insulation sleeve 7 on the top of the I-beam 5, thereby achieving the fixing effect of the thermal insulation sleeve 7 and the hanging ring 11, so that the coolant can cool the thermal insulation sleeve 7 that is continuously baked, thereby avoiding the frequent thermal expansion and contraction of the thermal insulation sleeve 7 when it is baked for a long time, resulting in a reduced service life of the thermal insulation sleeve 7, thereby improving the service life of the hanging beam.

[0026] There are five air diffusion holes 8, which are evenly distributed directly above the thermal insulation sleeve 7. By providing the air diffusion holes 8, when the thermal insulation sleeve 7 drives the coolant temperature to rise, the water vapor inside the thermal insulation sleeve 7 can be discharged to the outside of the thermal insulation sleeve 7 through the air diffusion holes 8, thereby avoiding the problem of coolant overflowing from the inside of the thermal insulation sleeve 7 when the internal pressure of the thermal insulation sleeve 7 increases, thereby improving the stability of the internal pressure of the thermal insulation sleeve 7.

[0027] The adjusting mechanism 12 includes a bolt 121, which is threadedly sleeved inside the No. 1 support sleeve 1, and a positioning groove 122 is provided on the front of the lifting column 3; by setting the adjusting mechanism 12, when the height of the I-beam 5 is adjusted, the bolt 121 is rotated so that the bolt 121 can be moved out from the positioning groove 122, so that the lifting column 3 can move up and down inside the No. 1 support sleeve 1, that is, drive the I-beam 5 to move up and down, thereby achieving the height adjustment effect of the crossbeam 6.

[0028] The anti-skid tooth plate 13 is in close contact with the bottom of the I-beam 5, and the anti-skid tooth plate 13 is located directly above the lifting column 3; by providing the anti-skid tooth plate 13, when the I-beam 5 is installed and fixed, the anti-skid tooth plate 13 can greatly improve the friction between the positioning seat 4 and the I-beam 5, thereby avoiding the problem of the I-beam 5 sliding inside the positioning seat 4 when the crossbeam 6 shakes, thereby improving the stability of the position of the crossbeam 6.

[0029] There are a plurality of sliding balls 14, which are evenly distributed on the sides of the lifting column 3. By providing the sliding balls 14, when the lifting column 3 moves up and down, the sliding balls 14 can limit the position of the lifting column 3 moving up and down, thereby avoiding the problem of friction between the lifting column 3 and the inner wall of the No. 1 support sleeve 1 when moving up and down, thereby improving the smoothness of the lifting column 3 when moving up and down.

[0030] The reinforcing mechanism 15 includes a No. 1 connecting column 151, which is fixedly connected to the outside of the No. 1 support sleeve 1, and the No. 2 connecting column 152 is fixedly connected to the outside of the No. 1 support sleeve 1, and the top of the No. 1 connecting column 151 is fixedly connected to the support column 153; by setting the reinforcing mechanism 15, when the hanging beam is installed and fixed, the No. 2 connecting column 152 is able to fixedly connect the No. 1 support sleeve 1 and the No. 2 support sleeve 2, so that the support column 153 can greatly improve the stability of the No. 1 support sleeve 1 and the No. 2 support sleeve 2, that is, improve the load-bearing effect of the hanging beam.

[0031] The anti-slip mechanism 16 includes a threaded column 161, which is threadedly sleeved on the bottom of the No. 1 support sleeve 1, and the bottom of the threaded column 161 is fixedly connected to the anti-slip seat 162; by setting the anti-slip mechanism 16, when the hanging beam is installed and fixed, the threaded column 161 is threadedly sleeved on the bottom of the No. 1 support sleeve 1, so that the anti-slip seat 162 can support the No. 1 support sleeve 1 through the threaded column 161, that is, the friction between the No. 1 support sleeve 1 and the ground is increased, thereby improving the stability of the fixed position of the hanging beam.

[0032] The working principle of the thermal insulation structure of the hanging beam of a gas turbine preheating boiler provided by the utility model is as follows:

[0033] Step 1: First, when installing and fixing the hanging beam, fix the crossbeam 6 inside the insulation sleeve 7. At this time, inject the coolant into the insulation sleeve 7 so that the crossbeam 6 can fix the insulation sleeve 7 on the top of the I-beam 5, thereby achieving the fixing effect of the insulation sleeve 7 and the hanging ring 11, so that the coolant can cool the insulation sleeve 7 that is continuously baked, thereby avoiding the frequent thermal expansion and contraction of the insulation sleeve 7 when it is baked for a long time, resulting in a reduced service life of the insulation sleeve 7, thereby improving the service life of the hanging beam. When the insulation sleeve 7 drives the coolant temperature to rise, the water vapor inside the insulation sleeve 7 can be discharged to the outside of the insulation sleeve 7 through the air vents 8, thereby avoiding the insulation When the internal pressure of the sleeve 7 increases, the coolant overflows from the inside of the insulation sleeve 7, thereby improving the stability of the internal pressure of the insulation sleeve 7. When the height of the I-beam 5 is adjusted, the bolt 121 is rotated so that the bolt 121 can be moved out of the positioning groove 122, so that the lifting column 3 can move up and down inside the No. 1 support sleeve 1, that is, the I-beam 5 is driven to move up and down, thereby achieving the effect of adjusting the height of the crossbeam 6. When the I-beam 5 is installed and fixed, the anti-slip tooth plate 13 can greatly increase the friction between the positioning seat 4 and the I-beam 5, thereby avoiding the problem of the I-beam 5 sliding inside the positioning seat 4 when the crossbeam 6 shakes, thereby improving the stability of the position of the crossbeam 6;

[0034] The second step: When the lifting column 3 moves up and down, the sliding ball 14 is able to limit the position of the lifting column 3 that moves up and down, thereby avoiding the problem of friction between the lifting column 3 and the inner wall of the No. 1 support sleeve 1 when moving up and down, thereby improving the smoothness of the lifting column 3 when moving up and down. When the hanging beam is installed and fixed, the No. 2 connecting column 152 is able to fixedly connect the No. 1 support sleeve 1 and the No. 2 support sleeve 2, so that the support column 153 can greatly improve the stability of the No. 1 support sleeve 1 and the No. 2 support sleeve 2, that is, improve the load-bearing effect of the hanging beam. When the hanging beam is installed and fixed, the threaded column 161 is threadedly sleeved on the bottom of the No. 1 support sleeve 1, so that the anti-slip seat 162 can support the No. 1 support sleeve 1 through the threaded column 161, that is, improve the friction between the No. 1 support sleeve 1 and the ground, thereby improving the stability of the fixed position of the hanging beam.

[0035] Compared with the related art, the thermal insulation structure of the hanging beam of the gas turbine preheating boiler provided by the present invention has the following beneficial effects:

[0036] By providing the heat-insulating sleeve 7, when the hanging beam is installed and fixed, the crossbeam 6 is fixedly sleeved inside the heat-insulating sleeve 7. At this time, the coolant is injected into the heat-insulating sleeve 7, so that the crossbeam 6 can fix the heat-insulating sleeve 7 on the top of the I-beam 5, thereby achieving the fixing effect of the heat-insulating sleeve 7 and the hanging ring 11, so that the coolant can cool the heat-insulating sleeve 7 that is continuously baked, thereby avoiding the problem of frequent thermal expansion and contraction of the heat-insulating sleeve 7 when it is baked for a long time, resulting in a reduction in the service life of the heat-insulating sleeve 7, thereby improving the service life of the hanging beam.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A thermal insulation structure for a gas turbine preheating boiler hanging beam, comprising a first support sleeve (1) and a second support sleeve (2), characterized in that: The top of the No. 1 support sleeve (1) is movably sleeved with a lifting column (3), the top of the lifting column (3) is fixedly connected to a positioning seat (4), the interior of the positioning seat (4) is fixedly sleeved with an I-beam (5), the top of the I-beam (5) is fixedly connected to a crossbeam (6), one end of the crossbeam (6) is fixedly sleeved with a heat insulation sleeve (7), the top of the heat insulation sleeve (7) is provided with an air diffusion hole (8), the top of the heat insulation sleeve (7) is threadedly sleeved with a sealing plug (9), the crossbeam (6) is fixedly sleeved with a heat insulation sleeve (7), and the heat insulation sleeve (7) is fixedly sleeved with a sealing plug (9). ) is fixedly connected to the bottom of a heat insulation plate (10), the bottom of the heat insulation sleeve (7) is fixedly connected to a hanging ring (11), the front of the No. 1 support sleeve (1) is provided with an adjustment mechanism (12), the bottom of the inner cavity of the positioning seat (4) is fixedly sleeved with an anti-slip tooth plate (13), the side of the lifting column (3) is movably sleeved with a sliding ball (14), the outside of the No. 1 support sleeve (1) is provided with a reinforcement mechanism (15), and the bottom of the No. 1 support sleeve (1) is provided with an anti-slip mechanism (16).

2. The thermal insulation structure of the hanging beam of a gas turbine preheating boiler according to claim 1, characterized in that: The front shape of the thermal insulation sleeve (7) is conical, and the material of the thermal insulation sleeve (7) is manganese steel.

3. The thermal insulation structure of the hanging beam of a gas turbine preheating boiler according to claim 1, characterized in that: The number of the air diffusion holes (8) is five, and the five air diffusion holes (8) are evenly distributed directly above the thermal insulation sleeve (7).

4. The thermal insulation structure of the hanging beam of a gas turbine preheating boiler according to claim 1, characterized in that: The adjustment mechanism (12) comprises a bolt (121), wherein the bolt (121) is threadedly sleeved inside the first support sleeve (1), and a positioning groove (122) is provided on the front surface of the lifting column (3).

5. The thermal insulation structure of the hanging beam of a gas turbine preheating boiler according to claim 1, characterized in that: The anti-skid tooth plate (13) is in close contact with the bottom of the I-beam (5), and the anti-skid tooth plate (13) is located directly above the lifting column (3).

6. The thermal insulation structure of the hanging beam of a gas turbine preheating boiler according to claim 1, characterized in that: The number of the sliding balls (14) is several, and the several sliding balls (14) are evenly distributed on the side of the lifting column (3).

7. The thermal insulation structure of the hanging beam of a gas turbine preheating boiler according to claim 1, characterized in that: The reinforcing mechanism (15) comprises a No. 1 connecting column (151), wherein the No. 1 connecting column (151) is fixedly connected to the outside of the No. 1 support sleeve (1), the No. 2 connecting column (152) is fixedly connected to the outside of the No. 1 support sleeve (1), and the top of the No. 1 connecting column (151) is fixedly connected to a support column (153).

8. The thermal insulation structure of the hanging beam of a gas turbine preheating boiler according to claim 1, characterized in that: The anti-slip mechanism (16) comprises a threaded column (161), the threaded column (161) is threadedly sleeved on the bottom of the No. 1 support sleeve (1), and the bottom of the threaded column (161) is fixedly connected to an anti-slip seat (162).

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