Steam turbine steam recovery device

Abstract

The utility model relates to steam turbine technical field, and disclose a steam turbine steam recovery device, include: base and recovery shell, recovery shell fixed mounting at the top of base, still include: cooling assembly, gas pump subassembly, filter component and water pump subassembly, cooling assembly installs inside recovery shell, gas pump subassembly installs at the side of recovery shell, filter component installs inside recovery shell, water pump subassembly installs at the top of base and is located at the side of recovery shell, the utility model separates the impurity inside gas through gas filter board, filters the impurity that the steam inside water vapor carries through liquid filter board, effectively reduces steam quality is not good, the internal moisture content is too high causes the blade incrustation, the problem of efficiency decline, through the detachable mounting plate can clean gas filter board and liquid filter board at any time, reduces the secondary pollution problem that produces because of long time not cleaning filter board.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, specifically a steam recovery device for steam turbines. Background Technology

[0002] A steam turbine generator is a generator driven by a steam turbine. Superheated steam generated by the boiler enters the steam turbine, expands and does work, causing the blades to rotate and drive the generator to generate electricity. The exhaust steam after doing work is sent back to the boiler for recycling through the condenser, circulating water pump, condensate pump, feedwater heating device, etc.

[0003] A search revealed a steam recovery device for a steam turbine, published under publication number CN223020951U. The device includes a base, a housing, and a cover plate, with the bottom of the housing fixedly mounted on the top of the base. This invention, by incorporating a base, housing, cover plate, pumping mechanism, inlet pipe, exhaust mechanism, condenser, filter mechanism, and positioning pins, first opens the condenser, allowing steam to enter the housing through the inlet pipe. The steam contacts the condenser, forming steam-water mixture. This steam-water mixture is then filtered by the filter mechanism, and a small amount of gas is discharged through the exhaust mechanism. Next, the pumping mechanism is opened to extract the steam-water mixture, which is then piped to a designated location. Finally, the filter mechanism is installed using the positioning pins. This invention solves the problem in existing technologies where steam is directly discharged through the exhaust pipe, resulting in insufficient steam utilization and significant steam waste.

[0004] The steam recovery device for a steam turbine in the above-mentioned technical solution installs the filter mechanism by positioning pins, which solves the problem that in the prior art, steam is directly discharged to the outside through the exhaust pipe, and the steam is not fully utilized, resulting in a large amount of steam waste. However, this method does not handle the impurities inside the steam sufficiently, and poor steam quality will cause blade scaling and efficiency reduction. Therefore, we provide a steam recovery device for a steam turbine. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology does not adequately treat impurities inside the steam, poor steam quality leads to blade scaling and reduced efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A steam recovery device for a steam turbine includes: a base and a recovery shell; the recovery shell is fixedly installed on the top of the base, and further includes: The package includes a cooling assembly, an air pump assembly, a filter assembly, and a water pump assembly. The cooling assembly is installed inside the recovery housing, the air pump assembly is installed on the side of the recovery housing, the filter assembly is installed inside the recovery housing, and the water pump assembly is installed on the top of the base located on the side of the recovery housing.

[0008] As a further embodiment of this utility model: the cooling assembly includes a water inlet pipe, a condenser pipe, a fixing block, and a water outlet pipe. The water inlet pipe is fixedly installed on the side of the recovery shell, and the fixing block is fixedly installed on the inner wall of the recovery shell.

[0009] As a further embodiment of this utility model: the condenser tube is fixedly installed inside the fixing block at the end of the water inlet pipe, and the water outlet pipe is fixedly installed at the end of the condenser tube.

[0010] As a further embodiment of this utility model: the air pump assembly includes an air inlet pipe, an air pump, a connecting pipe, an air outlet pipe, and a support plate. The air inlet pipe is fixedly installed on the side of the recovery shell, and the support plate is fixedly installed on the side of the recovery shell.

[0011] As a further embodiment of this utility model: the air pump is fixedly installed on the top of the support plate on the side of the recovery shell, the connecting pipe is fixedly installed inside the air pump and the recovery shell, and the air outlet pipe is fixedly installed on the top of the recovery shell.

[0012] As a further embodiment of this utility model: the filter assembly includes a flow guide channel, a mounting plate, a filter tank, a gas filter plate, a liquid filter plate, a limiting groove, a limiting block, and a water collection tank. The flow guide channel is formed inside the recovery shell, and the mounting plate is detachably installed inside the recovery shell.

[0013] As a further embodiment of this utility model: the filter groove is formed inside the mounting plate, and the gas filter plate is installed inside the filter groove.

[0014] As a further embodiment of this utility model: the liquid filter plate is fixedly installed inside the filter tank, and the limiting groove is formed inside the recovery shell.

[0015] As a further embodiment of this utility model: the limiting block is fixedly installed on the side of the mounting plate inside the limiting groove, and the water collection tank is fixedly installed at the bottom of the recycling shell.

[0016] As a further embodiment of this utility model: the water pump assembly includes a water pump and a drain pipe, the water pump is fixedly installed on the top of the base located on the side of the recycling shell, and the drain pipe is fixedly installed on the side of the water pump.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model utilizes cooling water inside the condenser tube to liquefy the moisture inside the steam upon cooling and releasing heat, causing it to accumulate on the surface of the condenser tube. The cooling water absorbs heat, causing the temperature of the condenser tube to drop. The cooled water, whose temperature rises after absorbing heat, is discharged through the outlet pipe. This design effectively recovers the moisture inside the steam, significantly saving water resources and the amount of water treatment chemicals used. At the same time, because of the high water temperature, it also saves a lot of fuel for the boiler. Steam is introduced into the recovery shell through the air inlet pipe, and gas is discharged into the recovery shell for treatment by an air pump. All these working fluids are recovered in a closed system, eliminating on-site leaks and disorderly discharges, making the plant environment cleaner and quieter.

[0018] 2. This utility model separates impurities inside the gas through a gas filter plate and filters impurities carried by water vapor inside the steam through a liquid filter plate. This effectively reduces the problems of blade scaling and efficiency reduction caused by poor steam quality and excessive internal moisture content. The detachable mounting plate allows for easy cleaning of the gas filter plate and liquid filter plate at any time, reducing secondary pollution caused by not cleaning the filter plates for a long time. The filtered water can be discharged by a water pump for subsequent recycling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a steam recovery device for a steam turbine. Figure 2 This is a schematic diagram of the internal structure of a steam recovery device for a steam turbine. Figure 3 A schematic diagram of the cooling component structure of a steam recovery device for a steam turbine; Figure 4 A schematic diagram of the air pump assembly structure of a steam recovery device for a steam turbine; Figure 5 A schematic diagram of a filter assembly structure for a steam recovery device for a steam turbine. In the diagram: 1. Base; 2. Recovery shell; 3. Cooling assembly; 31. Water inlet pipe; 32. Condenser pipe; 33. Fixing block; 34. Water outlet pipe; 4. Air pump assembly; 41. Air inlet pipe; 42. Air pump; 43. Connecting pipe; 44. Air outlet pipe; 45. Support plate; 5. Filter assembly; 51. Guide channel; 52. Mounting plate; 53. Filter tank; 54. Gas filter plate; 55. Liquid filter plate; 56. Limiting groove; 57. Limiting block; 58. Water collection tank; 6. Water pump assembly; 61. Water pump; 62. Drain pipe. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more easily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0023] Example 1: Please see Figure 1 - Figure 4 This is the first embodiment of the present invention. This embodiment provides a steam recovery device for a steam turbine, including: a base 1 and a recovery shell 2; the recovery shell 2 is fixedly installed on the top of the base 1, and further includes: Cooling assembly 3, air pump assembly 4, filter assembly 5, and water pump assembly 6; cooling assembly 3 is installed inside the recovery shell 2, air pump assembly 4 is installed on the side of the recovery shell 2, filter assembly 5 is installed inside the recovery shell 2, and water pump assembly 6 is installed on the top of the base 1 located on the side of the recovery shell 2.

[0024] Specifically, the cooling assembly 3 includes an inlet pipe 31, a condenser pipe 32, a fixing block 33, and an outlet pipe 34. The inlet pipe 31 is fixedly installed on the side of the recovery shell 2, and the fixing block 33 is fixedly installed on the inner side wall of the recovery shell 2. The condenser pipe 32 is fixedly installed inside the fixing block 33 at the end of the inlet pipe 31, and the outlet pipe 34 is fixedly installed at the end of the condenser pipe 32.

[0025] Furthermore, the cooling water inside the condenser tube 32 can cause the moisture inside the steam to liquefy upon cooling and release heat, accumulating on the surface of the condenser tube 32. The cooling water absorbs heat, causing the temperature of the condenser tube 32 to drop. The cooling water, whose temperature rises after absorbing heat, is discharged through the outlet pipe 34. This design can effectively recover the moisture inside the steam, significantly saving water resources and the amount of water treatment chemicals used. At the same time, because of the high water temperature, it can also save a lot of fuel for the boiler.

[0026] Specifically, the air pump assembly 4 includes an air inlet pipe 41, an air pump 42, a connecting pipe 43, an air outlet pipe 44, and a support plate 45. The air inlet pipe 41 is fixedly installed on the side of the recovery shell 2, and the support plate 45 is fixedly installed on the side of the recovery shell 2. The air pump 42 is fixedly installed at the top of the support plate 45 on the side of the recovery shell 2. The connecting pipe 43 is fixedly installed inside the air pump 42 and the recovery shell 2, and the air outlet pipe 44 is fixedly installed at the top of the recovery shell 2.

[0027] Furthermore, steam is introduced into the recovery shell 2 through the air inlet pipe 41, and the gas is discharged into the recovery shell 2 through the air pump 42 for treatment. All these working fluids are recovered in a closed manner, eliminating on-site leaks and disorderly emissions, making the plant environment cleaner and quieter.

[0028] In use, cooling water is injected into the condenser tube 32 through the water inlet pipe 31. The condenser tube 32 is fixed inside the recovery shell 2 by the fixing block 33. The steam to be recovered is discharged into the recovery shell 2 through the air inlet pipe 41. Due to the high temperature and low density of the steam, it moves upward inside the recovery shell 2. During the movement, because the surface temperature of the condenser tube 32 is low, the steam liquefies upon encountering the cold and releases heat, accumulating on the surface of the condenser tube 32. When the temperature of the condenser tube 32 rises, it transfers heat to the cooling water, causing the cooling water to absorb heat and the temperature of the condenser tube 32 to drop. The cooling water, which has risen in temperature after absorbing heat, is discharged through the water outlet pipe 34 for subsequent use. The gas inside the recovery shell 2 is discharged into the top of the recovery shell 2 through the connecting pipe 43 by the air pump 42 at the top of the support plate 45 for subsequent processing. The processed gas is discharged through the air outlet pipe 44 for subsequent use.

[0029] In summary, the cooling water inside the condenser tube 32 can liquefy the moisture inside the steam upon cooling and releasing heat, causing it to accumulate on the surface of the condenser tube 32. The cooling water absorbs heat, causing the temperature of the condenser tube 32 to drop. The cooled water, whose temperature rises after absorbing heat, is discharged through the outlet pipe 34. This design effectively recovers the moisture inside the steam, significantly saving water resources and the amount of water treatment chemicals used. At the same time, because of the high water temperature, it can also save a lot of fuel for the boiler. Steam is introduced into the recovery shell 2 through the air inlet pipe 41, and the gas is discharged into the recovery shell 2 for treatment by the air pump 42. All these working fluids are recovered in a closed system, eliminating on-site leaks and disorderly emissions, making the plant environment cleaner and quieter.

[0030] Example 2: Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 This is the second embodiment of the present utility model.

[0031] Specifically, the filter assembly 5 includes a flow guide 51, a mounting plate 52, a filter tank 53, a gas filter plate 54, a liquid filter plate 55, a limiting groove 56, a limiting block 57, and a water collection tank 58. The flow guide 51 is located inside the recovery shell 2, and the mounting plate 52 is detachably installed inside the recovery shell 2. The filter tank 53 is located inside the mounting plate 52, and the gas filter plate 54 is installed inside the filter tank 53. The liquid filter plate 55 is fixedly installed inside the filter tank 53, and the limiting groove 56 is located inside the recovery shell 2. The limiting block 57 is fixedly installed on the side of the mounting plate 52, located inside the limiting groove 56. The water collection tank 58 is fixedly installed at the bottom of the recovery shell 2. The water pump assembly 6 includes a water pump 61 and a drain pipe 62. The water pump 61 is fixedly installed at the top of the base 1, located on the side of the recovery shell 2, and the drain pipe 62 is fixedly installed on the side of the water pump 61.

[0032] Furthermore, the gas filter plate 54 separates impurities from the gas, and the liquid filter plate 55 filters impurities carried by water vapor in the steam, effectively reducing the problems of blade scaling and efficiency reduction caused by poor steam quality and excessive internal moisture content. The gas filter plate 54 and liquid filter plate 55 can be cleaned at any time through the detachable mounting plate 52, reducing the problem of secondary pollution caused by not cleaning the filter plates for a long time. The water pump 61 can discharge the filtered water for subsequent recycling.

[0033] In use, the gas filter plate 54 and the liquid filter plate 55 are respectively installed inside the filter grooves 53 opened in the corresponding mounting plate 52. The limiting block 57 on the edge of the mounting plate 52 is aligned with the limiting groove 56 opened in the recovery shell 2. The mounting plate 52 is detachably installed inside the recovery shell 2. When the gas is discharged into the top of the recovery shell 2 through the connecting pipe 43, the gas is filtered by the gas filter plate 54 to separate the impurities inside the gas. The processed gas is discharged through the gas outlet pipe 44 for subsequent use. When the steam is cooled and liquefied, when too much accumulates on the surface of the condenser pipe 32, the liquefied water drips naturally and is filtered by the liquid filter plate 55 through the guide groove 51. The filtered liquefied water enters the water collection tank 58. The water pump 61 discharges the liquefied water in the water collection tank 58 through the drain pipe 62 for subsequent use.

[0034] In summary, the gas filter plate 54 separates impurities from the gas, and the liquid filter plate 55 filters impurities carried by water vapor in the steam, effectively reducing the problems of blade scaling and efficiency reduction caused by poor steam quality and excessive internal moisture content. The detachable mounting plate 52 allows for easy cleaning of the gas filter plate 54 and the liquid filter plate 55, reducing secondary pollution caused by prolonged lack of filter cleaning. The water pump 61 can discharge the filtered water for subsequent recycling.

[0035] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0036] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0037] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A steam recovery device for a steam turbine, characterized in that: include: A base (1) and a recycling shell (2); the recycling shell (2) is fixedly installed on the top of the base (1), and further includes: Cooling assembly (3), air pump assembly (4), filter assembly (5) and water pump assembly (6); the cooling assembly (3) is installed inside the recovery shell (2), the air pump assembly (4) is installed on the side of the recovery shell (2), the filter assembly (5) is installed inside the recovery shell (2), and the water pump assembly (6) is installed on the top of the base (1) located on the side of the recovery shell (2).

2. The steam recovery device for a steam turbine according to claim 1, characterized in that: The cooling assembly (3) includes an inlet pipe (31), a condenser pipe (32), a fixing block (33), and an outlet pipe (34). The inlet pipe (31) is fixedly installed on the side of the recovery shell (2), and the fixing block (33) is fixedly installed on the inner wall of the recovery shell (2).

3. A steam recovery device for a steam turbine according to claim 2, characterized in that: The condenser tube (32) is fixedly installed inside the fixing block (33) at the end of the water inlet pipe (31), and the water outlet pipe (34) is fixedly installed at the end of the condenser tube (32).

4. A steam recovery device for a steam turbine according to claim 3, characterized in that: The air pump assembly (4) includes an air inlet pipe (41), an air pump (42), a connecting pipe (43), an air outlet pipe (44), and a support plate (45). The air inlet pipe (41) is fixedly installed on the side of the recovery shell (2), and the support plate (45) is fixedly installed on the side of the recovery shell (2).

5. A steam recovery device for a steam turbine according to claim 4, characterized in that: The air pump (42) is fixedly installed on the top of the support plate (45) on the side of the recovery shell (2), the connecting pipe (43) is fixedly installed inside the air pump (42) and the recovery shell (2), and the air outlet pipe (44) is fixedly installed on the top of the recovery shell (2).

6. A steam recovery device for a steam turbine according to claim 1, characterized in that: The filter assembly (5) includes a flow guide (51), a mounting plate (52), a filter tank (53), a gas filter plate (54), a liquid filter plate (55), a limiting groove (56), a limiting block (57), and a water collection tank (58). The flow guide (51) is opened inside the recovery shell (2), and the mounting plate (52) is detachably installed inside the recovery shell (2).

7. A steam recovery device for a steam turbine according to claim 6, characterized in that: The filter tank (53) is opened inside the mounting plate (52), and the gas filter plate (54) is installed inside the filter tank (53).

8. A steam recovery device for a steam turbine according to claim 7, characterized in that: The liquid filter plate (55) is fixedly installed inside the filter tank (53), and the limiting groove (56) is opened inside the recovery shell (2).

9. A steam recovery device for a steam turbine according to claim 8, characterized in that: The limiting block (57) is fixedly installed on the side of the mounting plate (52) inside the limiting groove (56), and the water collection tank (58) is fixedly installed at the bottom of the recycling shell (2).

10. A steam recovery device for a steam turbine according to claim 1, characterized in that: The water pump assembly (6) includes a water pump (61) and a drain pipe (62). The water pump (61) is fixedly installed on the top of the base (1) on the side of the recycling shell (2), and the drain pipe (62) is fixedly installed on the side of the water pump (61).

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