Boiler steam turbine pipeline protection structure

Abstract

The utility model relates to the technical field of steam pipeline protection, in particular to a boiler steam turbine pipeline protection structure. Comprising two semicircular shells arranged on a pipeline joint in a sleeving mode, two semicircular protective sleeves are arranged on the semicircular shells and make contact with the pipeline joint, a heat dissipation water tank is arranged below the pipeline joint, a semicircular water tank is arranged in the semicircular shells, and the semicircular water tank is in contact with the semicircular protective sleeves. The top and the bottom of the semicircular shell are fixedly provided with connecting plates, every two adjacent connecting plates make contact with each other, a water inlet pipe is wound around the semicircular shell, the top end of the water inlet pipe extends into the corresponding semicircular water tank, and a water drainage pipe is arranged at the bottom of each semicircular water tank. By arranging the cooling and flow limiting and guiding structure, leaked high-temperature and high-pressure steam can be effectively limited, the steam discharging speed is effectively reduced, the leaked high-temperature and high-pressure steam can be effectively cooled conveniently, and the safety risk is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steam pipeline protection, in particular to a boiler turbine pipeline protection structure. Background Art

[0002] With the continuous development of the economy, the market demand for electricity continues to increase, and a large number of power generation equipment have been put into use. Boiler turbines are the core equipment among them. Steam turbines, also known as steam turbine engines, are a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then sprayed onto the blades, causing the rotor equipped with blade rows to rotate and perform work externally. It is the main equipment in modern thermal power plants and is also used in the metallurgical industry, chemical industry, and ship power units. The use of boiler turbines requires the cooperation of pipelines for steam transmission. Steam leakage often occurs at the pipeline joints, posing a safety risk. Therefore, a protective structure is needed to protect the pipeline. The prior art discloses a boiler turbine pipeline protection structure with the authorization announcement number CN221647874U, including a turbine pipeline, a protective splint, a sealing box, an inspection window, a silent insulation mechanism and a sealing protection mechanism; the protective splints are provided in two groups, and the two groups of protective splints are respectively provided on the left and right sides of the turbine pipeline; the sealing box is provided in four groups, and the four groups of sealing boxes are respectively fixedly connected to the inner side of the protective splints, and the interior of the four groups of sealing boxes are all provided with sealant; the inspection window is fixedly connected to the rear end of a group of protective splints on the right; the silent insulation mechanism is provided on the outside of the protective splint; the sealing protection mechanism is provided on the inside of the protective splint, which realizes the protection of the pipeline, avoids the harm of steam leakage to workers, and increases the safety of the entire pipeline during operation.

[0003] However, it was found during use that the existing boiler turbine pipeline protection structure has limited flow-limiting effect on leaking high-pressure and high-temperature steam, resulting in a faster discharge speed of temperature-sensitive high-pressure steam, and a lack of cooling structure for high-temperature and high-pressure steam, resulting in a high residual temperature of the leaked steam that is finally discharged, and there is still a large safety risk. Utility Model Content

[0004] In response to the above problems, the purpose of the present invention is to provide a boiler turbine pipeline protection structure that can effectively limit the flow of leaked high-temperature and high-pressure steam, effectively slow down the discharge rate of steam, facilitate the effective cooling of leaked high-temperature and high-pressure steam, greatly reduce safety risks, and solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows: a boiler turbine pipeline protection structure, comprising two semicircular shells sleeved on the pipeline joint, two semicircular sheaths are provided on the semicircular shells, the semicircular sheaths are in contact with the pipeline joint, a heat dissipation water tank is provided below the pipeline joint, a semicircular water tank is provided inside the semicircular shells, connecting plates are fixedly installed on the top and bottom of the semicircular shells, two adjacent connecting plates are in contact, a water inlet pipe is wound around the semicircular shells, and the top end of the water inlet pipe extends to the opposite The corresponding semicircular water tank has a drain pipe at the bottom of the semicircular water tank, and the bottom end of the drain pipe extends into the heat dissipation water tank. Two water pumps are provided on the top of the heat dissipation water tank. The bottom end of the water inlet pipe is fixed on the drain port of the corresponding water pump, and a water suction pipe is provided on the water inlet of the water pump. The bottom end of the water suction pipe extends into the heat dissipation water tank. Arc-shaped steam pipes are provided on both sides of the semicircular shell, and multiple steam pipes are provided on one side of the arc-shaped steam pipe. One end of the steam pipe extends into the semicircular shell, and an exhaust pipe is provided on the top of the arc-shaped steam pipe.

[0006] In order to slow down the flow of high-temperature and high-pressure steam in the semicircular shell and fully cool it down:

[0007] As a further improvement of the above technical solution: a plurality of first arc-shaped guide plates are provided in the semicircular shell, the first arc-shaped guide plates are fixedly mounted on the corresponding semicircular sheath and the semicircular water tank, a plurality of first through grooves are provided on the first arc-shaped guide plates, a plurality of second arc-shaped guide plates are provided on the inner wall of the semicircular water tank, one side of the second arc-shaped guide plates extends into the semicircular water tank, and a plurality of second through grooves are provided on the second arc-shaped guide plates.

[0008] The beneficial effect of this improvement is that through such an arrangement, the flow velocity of the high-temperature and high-pressure steam in the semicircular shell can be effectively slowed down, and the retention time of the high-temperature and high-pressure steam in the semicircular shell can be effectively prolonged, thereby facilitating the cooling of the high-temperature and high-pressure steam.

[0009] To prevent the semicircular shell from overheating and scalding workers:

[0010] As a further improvement of the above technical solution: the fixing sleeve on the semicircular shell is provided with a heat insulating sleeve, and the two adjacent connecting plates are connected and fixed by a plurality of bolts.

[0011] The beneficial effect of this improvement is that by providing a heat-insulating sleeve, the semicircular shell can be prevented from overheating and scalding workers.

[0012] To prevent steam from escaping from the gap between the two semicircular shells:

[0013] As a further improvement of the above technical solution: two first sealing strips are provided on one side of the semicircular shell, and the first sealing strips are in contact with the other semicircular shell.

[0014] The beneficial effect of this improvement is that by providing the first sealing strip, steam can be prevented from being discharged from the gap between the two semicircular shells.

[0015] In order to isolate and protect the curved steam duct and exhaust pipe:

[0016] As a further improvement of the above technical solution: two annular sleeves are provided on the pipe joint, and the annular sleeves are slidably provided on the two heat insulation sleeves.

[0017] The beneficial effect of this improvement is that the arc-shaped steam guide pipe and the exhaust pipe can be isolated and protected by providing the annular sheath.

[0018] To prevent leaking steam from escaping from the gap between the pipe joint and the semi-circular sleeve:

[0019] As a further improvement of the above technical solution: a plurality of second sealing strips are provided on the inner wall of the semicircular sheath, and the second sealing strips are in contact with the pipe joint.

[0020] The beneficial effect of this improvement is that by providing the second sealing strip, it is possible to effectively prevent leaked steam from being discharged from the gap between the pipe joint and the semicircular sheath.

[0021] In order to quickly transfer the heat of high-temperature and high-pressure steam to the water in the semicircular water tank:

[0022] As a further improvement of the above technical solution: the material of the second arc-shaped guide plate is metallic copper.

[0023] The beneficial effect of this improvement is that, through such an arrangement, the heat of the high-temperature and high-pressure steam can be quickly transferred to the water in the semicircular water tank.

[0024] The beneficial effects of the present invention are as follows: by setting a cooling and flow-limiting guide structure, the leaked high-temperature and high-pressure steam can be effectively limited, the discharge speed of the steam can be effectively slowed down, and the leaked high-temperature and high-pressure steam can be effectively cooled, thereby greatly reducing the safety risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0026] Figure 2 This is a side sectional structural diagram of the present utility model;

[0027] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A;

[0028] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part B;

[0029] Figure 5 It is a schematic diagram of the three-dimensional sectional assembly structure of the semicircular shell and the semicircular sheath in the present invention.

[0030] In the figure: 1. pipe joint; 2. semicircular sheath; 3. semicircular shell; 4. heat dissipation water tank; 5. semicircular water tank; 6. connecting plate; 7. water inlet pipe; 8. drain pipe; 9. water pump; 10. water suction pipe; 11. arc-shaped steam guide pipe; 12. steam guide pipe; 13. exhaust pipe; 14. first arc-shaped guide plate; 15. first through groove; 16. second arc-shaped guide plate; 17. second through groove. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0032] like Figure 1-5As shown, a boiler turbine pipeline protection structure includes two semicircular shells 3 sleeved on the pipe joint 1, two semicircular sheaths 2 are provided on the semicircular shells 3, the semicircular sheaths 2 are in contact with the pipe joint 1, a heat dissipation water tank 4 is provided below the pipe joint 1, a semicircular water tank 5 is provided in the semicircular shell 3, the top and bottom of the semicircular shell 3 are fixedly installed with connecting plates 6, and the two adjacent connecting plates 6 are in contact, a water inlet pipe 7 is wound around the semicircular shell 3, the top of the water inlet pipe 7 extends to the corresponding semicircular water tank 5, the bottom of the semicircular water tank 5 is provided with a drain pipe 8, the bottom end of the drain pipe 8 extends to the heat dissipation water tank 4, the top of the heat dissipation water tank 4 is provided with two water pumps 9, the inlet pipe 7 is provided with a drain pipe 8, and the bottom end of the drain pipe 8 extends to the heat dissipation water tank 4. The bottom end of the water pipe 7 is fixed to the drain outlet of the corresponding water pump 9. A water suction pipe 10 is provided on the water inlet of the water pump 9. The bottom end of the water suction pipe 10 extends into the heat dissipation water tank 4. Arc-shaped steam guide pipes 11 are provided on both sides of the semicircular shell 3. A plurality of steam guide pipes 12 are provided on one side of the arc-shaped steam guide pipe 11. One end of the steam guide pipe 12 extends into the semicircular shell 3. An exhaust pipe 13 is provided on the top of the arc-shaped steam guide pipe 11. By setting a cooling and flow-limiting guide structure, the leaked high-temperature and high-pressure steam can be effectively limited, the discharge speed of the steam can be effectively delayed, and the leaked high-temperature and high-pressure steam can be effectively cooled, which greatly reduces the safety risk. A plurality of first arc-shaped guide plates 14 are provided in the semicircular shell 3. The arc guide plate 14 is fixedly mounted on the corresponding semicircular sheath 2 and the semicircular water tank 5. A plurality of first through grooves 15 are provided on the first arc guide plate 14. A plurality of second arc guide plates 16 are provided on the inner wall of the semicircular water tank 5. One side of the second arc guide plate 16 extends into the semicircular water tank 5. A plurality of second through grooves 17 are provided on the second arc guide plate 16. By such an arrangement, the flow velocity of the high-temperature and high-pressure steam in the semicircular shell 3 can be effectively slowed down, and the retention time of the high-temperature and high-pressure steam in the semicircular shell 3 can be effectively prolonged, thereby facilitating the cooling of the high-temperature and high-pressure steam. A heat-insulating sleeve is fixedly provided on the semicircular shell 3. The two adjacent connecting plates 6 are fixed by a plurality of bolts. By setting Insulation sleeve, thereby preventing the semicircular shell 3 from overheating and scalding workers, two first sealing strips are provided on one side of the semicircular shell 3, and the first sealing strip is in contact with the other semicircular shell 3. By providing the first sealing strip, steam can be prevented from being discharged from the gap between the two semicircular shells 3. Two annular sleeves are provided on the pipe joint 1, and the annular sleeves are slidably sleeved on the two insulation sleeves. By providing the annular sleeves, the arc-shaped steam guide pipe 11 and the exhaust pipe 13 can be isolated and protected. A plurality of second sealing strips are provided on the inner wall of the semicircular sleeve 2, and the second sealing strip is in contact with the pipe joint 1. By providing the second sealing strip, it is possible to effectively prevent leaked steam from being discharged from the gap between the pipe joint 1 and the semicircular sleeve 2.The second arc-shaped guide plate 16 is made of copper. This configuration facilitates the rapid transfer of heat from the high-temperature and high-pressure steam to the water in the semicircular water tank 5.

[0033] The working principle of the present invention is as follows: when in use, first put the two semicircular shells 3 on the pipe joint 1 so that the connecting flange of the pipe joint 1 is between the four semicircular sheaths 2, and then use bolts to connect and fix the two contacting connecting plates 6. The two semicircular shells 3 are connected and fixed, and then the two water pumps 9 are turned on. The water pump 9 draws water from the heat dissipation water tank 4 through the water suction pipe 10, and the water is discharged into the semicircular water tank 5 through the water inlet pipe 7. The water in the semicircular water tank 5 is discharged into the heat dissipation water tank 4 through the drain pipe 8 to form a heat absorption and heat dissipation cycle. When high-temperature and high-pressure steam leaks out from the connecting flange of the pipe joint 1, the high-temperature and high-pressure steam enters the two semicircular shells 3. Under the action of pressure, the high-temperature and high-pressure steam flows in the semicircular shell 3 through the multiple first through grooves 15 and second through grooves 17 on the first arc-shaped guide plate 14 and the second arc-shaped guide plate 16, delaying the high-temperature and high-pressure steam. The flow rate of the semicircular shell 3 can be effectively slowed down by setting it in this way, and the retention time of the high-temperature and high-pressure steam in the semicircular shell 3 can be effectively prolonged, so as to facilitate the cooling of the high-temperature and high-pressure steam. During the flow of the high-temperature and high-pressure steam in the semicircular shell 3, the semicircular water tank 5 absorbs heat and transfers the heat to the circulating water, so that the temperature-sensitive high-pressure steam is effectively cooled and cooled. The water that absorbs heat flows to the heat dissipation water tank 4 for heat dissipation and cooling. At the same time, the steam with effectively reduced temperature enters the arc-shaped steam guide pipe 11 through multiple steam guide pipes 12, and the steam in the arc-shaped steam guide pipe 11 is discharged through the exhaust pipe 13. Through such a setting, the leaked high-temperature and high-pressure steam can be effectively limited, the discharge speed of the steam can be effectively slowed down, and the leaked high-temperature and high-pressure steam can be effectively cooled, which greatly reduces the safety risk.

[0034] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0035] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of the present utility model.

Claims

1. A boiler turbine pipeline protection structure, comprising two semicircular shells (3) sleeved on a pipeline joint (1), characterized in that: Two semicircular sheaths (2) are provided on the semicircular shell (3), the semicircular sheaths (2) are in contact with the pipe joint (1), a heat dissipation water tank (4) is provided below the pipe joint (1), a semicircular water tank (5) is provided in the semicircular shell (3), a connecting plate (6) is fixedly installed on the top and bottom of the semicircular shell (3), two adjacent connecting plates (6) are in contact, a water inlet pipe (7) is wound around the semicircular shell (3), the top end of the water inlet pipe (7) extends into the corresponding semicircular water tank (5), a drain pipe (8) is provided at the bottom of the semicircular water tank (5), and the drain pipe (8) ) extends into the heat dissipation water tank (4), two water pumps (9) are provided on the top of the heat dissipation water tank (4), the bottom end of the water inlet pipe (7) is fixed on the drain outlet of the corresponding water pump (9), a water suction pipe (10) is provided on the water inlet of the water pump (9), the bottom end of the water suction pipe (10) extends into the heat dissipation water tank (4), both sides of the semicircular shell (3) are provided with arc-shaped steam guide pipes (11), one side of the arc-shaped steam guide pipe (11) is provided with multiple steam guide pipes (12), one end of the steam guide pipe (12) extends into the semicircular shell (3), and the top of the arc-shaped steam guide pipe (11) is provided with an exhaust pipe (13).

2. A boiler turbine pipeline protection structure according to claim 1, characterized in that: A plurality of first arc-shaped guide plates (14) are provided in the semicircular shell (3), the first arc-shaped guide plates (14) are fixedly mounted on the corresponding semicircular sheath (2) and the semicircular water tank (5), a plurality of first through slots (15) are provided on the first arc-shaped guide plates (14), a plurality of second arc-shaped guide plates (16) are provided on the inner wall of the semicircular water tank (5), one side of the second arc-shaped guide plates (16) extends into the semicircular water tank (5), and a plurality of second through slots (17) are provided on the second arc-shaped guide plates (16).

3. The boiler turbine pipeline protection structure according to claim 1, characterized in that: The fixing sleeve on the semicircular shell (3) is provided with a heat insulation sleeve, and the two adjacent connecting plates (6) are connected and fixed by a plurality of bolts.

4. The boiler turbine pipeline protection structure according to claim 1, characterized in that: Two first sealing strips are provided on one side of the semicircular shell (3), and the first sealing strips are in contact with the other semicircular shell (3).

5. The boiler turbine pipeline protection structure according to claim 3, characterized in that: The pipe joint (1) is provided with two annular sleeves, and the annular sleeves are slidably provided on the two heat-insulating sleeves.

6. The boiler turbine pipeline protection structure according to claim 1, characterized in that: A plurality of second sealing strips are provided on the inner wall of the semicircular sheath (2), and the second sealing strips are in contact with the pipe joint (1).

7. The boiler turbine pipeline protection structure according to claim 2, characterized in that: The second arc-shaped guide plate (16) is made of metallic copper.

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