A cast steel cylinder part for a 400MW gas turbine

Abstract

This utility model discloses a 400MW gas turbine cylinder cast steel component, including an upper cylinder body cast steel component and a lower cylinder body cast steel component. The lower end face of the upper cylinder body cast steel component has, from the inside to the outside, a first positioning groove, a first positioning protrusion, and a first sealing strip mounting groove. The upper end face of the lower cylinder body cast steel component has, from the inside to the outside, a second positioning protrusion, a second positioning groove, and a second sealing strip mounting groove. The lower left end of the lower cylinder body cast steel component has a left electric push rod mounting seat and a left bracket connecting seat, with a left bracket cast steel component located below the left bracket connecting seat. The lower right end of the lower cylinder body cast steel component has a right electric push rod mounting seat and a right bracket connecting seat, with a right bracket cast steel component located below the right bracket connecting seat. A limit protrusion is located at the upper end of the lower cylinder body cast steel component. An upper electric push rod mounting seat is positioned on the upper cylinder body cast steel component, aligned with each limit protrusion. The above technical solution has a reasonable structural design, reliable positioning, is not easily tipped over, and has good practicality.

Description

Technical Field

[0001] This utility model relates to the field of gas turbine technology, specifically to a 400MW gas turbine cylinder cast steel part. Background Technology

[0002] A gas turbine is an internal combustion engine that uses a continuously flowing gas as its working fluid to drive a high-speed rotating impeller, converting the energy of fuel into useful work. It is a type of rotating impeller-type thermal engine. The turbine cylinder is the outer casing of the gas turbine; its rotor and cylinder are machined with high precision, and its main components operate in high-temperature, high-pressure environments.

[0003] The existing gas turbine cylinder structure has shortcomings: the structural design is unreasonable, and due to its large size and weight, it is prone to tipping over during installation or maintenance, which may pose a safety hazard to surrounding personnel and is not conducive to practical application and operation. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a 400MW gas turbine cylinder cast steel part with reasonable structural design, reliable positioning, not easy to tip over and good practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a 400MW gas turbine cylinder cast steel part, including an upper cylinder body cast steel part and a lower cylinder body cast steel part. The lower end face of the upper cylinder body cast steel part is provided with a first positioning groove, a first positioning protrusion and a first sealing strip mounting groove from the inside to the outside. The upper end face of the lower cylinder body cast steel part is provided with a second positioning protrusion, a second positioning groove and a second sealing strip mounting groove from the inside to the outside. The second positioning protrusion is inserted into the first positioning groove and the first positioning protrusion is inserted into the second positioning groove.

[0006] The lower left side of the cast steel lower cylinder body is integrally provided with a left electric push rod mounting seat and a left bracket connecting seat, and the lower end of the left bracket connecting seat is provided with a left bracket cast steel part; the lower right side of the cast steel lower cylinder body is integrally provided with a right electric push rod mounting seat and a right bracket connecting seat, and the lower end of the right bracket connecting seat is provided with a right bracket cast steel part.

[0007] Several limiting protrusions are integrally provided on the upper part of the outer surface of the lower cylinder casting steel part; an upper electric push rod mounting seat is integrally provided on the outer surface of the upper cylinder casting steel part, aligned with the position of each limiting protrusion; several lifting rings are integrally provided on the top of the upper cylinder casting steel part.

[0008] The present invention is further configured such that: the upper end of the lower cylinder casting steel part is integrally provided with a plurality of first connecting protrusions, and the lower end of the upper cylinder casting steel part is integrally provided with a second connecting protrusion aligned with the position of each first connecting protrusion; the first connecting protrusions and the second connecting protrusions are connected and fixed by bolts.

[0009] The present invention is further configured such that: a first reinforcing rib is integrally provided on the outer surface of the lower cylinder casting steel part at the lower end of each limiting protrusion; and a second reinforcing rib is integrally provided on the outer surface of the upper cylinder casting steel part above each upper electric push rod mounting seat.

[0010] The present invention is further configured such that: the upper end of the left support cast steel part is fixedly connected to the left support connecting seat by bolts, and the lower end of the left support cast steel part is integrally provided with a first base plate cast steel part.

[0011] The present invention is further configured such that: the upper end of the right bracket cast steel part is fixedly connected to the right bracket connecting seat by bolts, and the lower end of the right bracket cast steel part is integrally provided with a second base plate cast steel part.

[0012] The present invention is further configured such that: the first sealing strip mounting groove and the second sealing strip mounting groove together constitute a sealing strip mounting cavity, and an elastic sealing strip is provided in the sealing strip mounting cavity, the elastic sealing strip being made of metal or silicone.

[0013] The beneficial effects of this utility model are: compared with the prior art, the structure of this utility model is reasonable, and the left electric push rod mounting seat and right electric push rod mounting seat of the lower cylinder casting steel part and the upper electric push rod mounting seat of the upper cylinder casting steel part are all used to install existing electric push rods.

[0014] By designing electric push rod mounting seats on both the upper and lower cylinder casting steel parts, the cylinder body can be lifted by the electric push rod during installation or maintenance. The upper cylinder casting steel part can also be lifted by a lifting ring, which ensures reliable positioning, prevents tipping, saves time and effort, and is highly practical.

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of section I;

[0019] Figure 4 This is an exploded view of an embodiment of the present invention;

[0020] Figure 5 This is an assembly diagram showing the installation of an existing electric actuator in an embodiment of this utility model. Detailed Implementation

[0021] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] See Figures 1 to 5 This utility model discloses a 400MW gas turbine cylinder cast steel part, including an upper cylinder body cast steel part 1 and a lower cylinder body cast steel part 2. The lower end face of the upper cylinder body cast steel part 1 is provided with a first positioning groove 11, a first positioning protrusion 12 and a first sealing strip mounting groove 13 from the inside to the outside. The upper end face of the lower cylinder body cast steel part 2 is provided with a second positioning protrusion 21, a second positioning groove 22 and a second sealing strip mounting groove 23 from the inside to the outside. The second positioning protrusion 21 is inserted into the first positioning groove 11 and the first positioning protrusion 12 is inserted into the second positioning groove 22.

[0023] The lower left side of the cast steel lower cylinder body 2 is integrally provided with a left electric push rod mounting seat 24 and a left bracket connecting seat 25, and a left bracket cast steel part 3 is provided at the lower end of the left bracket connecting seat 25; the lower right side of the cast steel lower cylinder body 2 is integrally provided with a right electric push rod mounting seat 26 and a right bracket connecting seat 27, and a right bracket cast steel part 4 is provided at the lower end of the right bracket connecting seat 27.

[0024] Several limiting protrusions 28 are integrally provided at a partial position on the upper part of the outer surface of the lower cylinder casting steel part 2; an upper electric push rod mounting seat 14 is integrally provided on the outer surface of the upper cylinder casting steel part 1, aligned with the position of each limiting protrusion 28; several lifting rings 15 are integrally provided on the top of the upper cylinder casting steel part 1.

[0025] Preferably, both the left electric actuator mounting base 24 and the right electric actuator mounting base 26 are provided with 2-4 bolt holes, and both the left and right electric actuator mounting bases 24 and 26 are used to install existing electric actuators. The limiting protrusions 28 are located at the upper front and upper rear ends of the outer surface of the lower cylinder casting steel part 2, and there are 2-4 limiting protrusions 28 at the upper front and upper rear ends of the outer surface of the lower cylinder casting steel part 2. The number of top lifting rings 15 on the upper cylinder casting steel part 1 is 2-4.

[0026] To make the structural design of this utility model more reasonable, as a preferred embodiment, the upper end of the lower cylinder casting steel part 2 is integrally provided with a plurality of first connecting protrusions 29, and the lower end of the upper cylinder casting steel part 1 is integrally provided with a second connecting protrusion 16 aligned with the position of each first connecting protrusion 29. The first connecting protrusions 29 and the second connecting protrusions 16 are connected and fixed by bolts.

[0027] The outer surface of the lower cylinder casting steel part 2 is integrally provided with a first reinforcing rib 210 at the lower end of each limiting protrusion 28; the outer surface of the upper cylinder casting steel part 1 is integrally provided with a second reinforcing rib 17 above each upper electric push rod mounting seat 14.

[0028] The upper end of the left support cast steel part 3 is fixed to the left support connecting seat 25 by bolts, and the lower end of the left support cast steel part 3 is integrally provided with the first base plate cast steel part 31.

[0029] The upper end of the right support cast steel part 4 is fixed to the right support connecting seat 27 by bolts, and the lower end of the right support cast steel part 4 is integrally provided with a second base plate cast steel part 41.

[0030] The first sealing strip mounting groove 13 and the second sealing strip mounting groove 23 together form a sealing strip mounting cavity. An elastic sealing strip 5 is provided in the sealing strip mounting cavity. The elastic sealing strip 5 is made of metal or silicone.

[0031] In practical applications, the left electric push rod mounting base 24 and right electric push rod mounting base 26 of the lower cylinder block cast steel part 2, as well as the upper electric push rod mounting base 14 of the upper cylinder block cast steel part 1, are all used to install existing electric push rods, such as... Figure 5 As shown, there are electric linear actuators 100, 200, 300 and 400.

[0032] Ordinary electric linear actuators: thrust is typically between 25kg and 80,000kg, stroke is 100 to 2,000mm, and speed is 1 to 150mm / s; Industrial-grade electric linear actuators: maximum thrust can reach 63 tons, stroke can reach 1,500mm, and speed is 1 to 150mm / s.

[0033] This utility model features electric push rod mounting seats on both the upper cylinder casting steel part 1 and the lower cylinder casting steel part 2. During installation or maintenance, the cylinder body is lifted by the electric push rod. The upper cylinder casting steel part 1 can also be lifted by the lifting ring 15. The structure is reasonable, the positioning is reliable, it is not easy to tip over, it saves time and effort, and it is practical.

[0034] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A 400MW gas turbine cylinder cast steel part, comprising an upper cylinder body cast steel part (1) and a lower cylinder body cast steel part (2), characterized in that: The lower end face of the upper cylinder casting steel part (1) is provided with a first positioning groove (11), a first positioning protrusion (12) and a first sealing strip mounting groove (13) from the inside to the outside. The upper end face of the lower cylinder casting steel part (2) is provided with a second positioning protrusion (21), a second positioning groove (22) and a second sealing strip mounting groove (23) from the inside to the outside. The second positioning protrusion (21) is inserted into the first positioning groove (11) and the first positioning protrusion (12) is inserted into the second positioning groove (22). The lower left side of the lower cylinder casting steel part (2) is integrally provided with a left electric push rod mounting seat (24) and a left bracket connecting seat (25), and the lower end of the left bracket connecting seat (25) is provided with a left bracket casting steel part (3); the lower right side of the lower cylinder casting steel part (2) is integrally provided with a right electric push rod mounting seat (26) and a right bracket connecting seat (27), and the lower end of the right bracket connecting seat (27) is provided with a right bracket casting steel part (4). The lower cylinder casting steel part (2) has a number of limiting protrusions (28) integrally provided at a local position on the upper part of its outer surface; the upper cylinder casting steel part (1) has an upper electric push rod mounting seat (14) integrally provided on its outer surface aligned with each limiting protrusion (28); the upper cylinder casting steel part (1) has a number of lifting rings (15) integrally provided on its top.

2. The 400 MW gas turbine cylinder steel casting of claim 1, wherein: The upper end of the lower cylinder casting steel part (2) is integrally provided with several first connecting protrusions (29), and the lower end of the upper cylinder casting steel part (1) is integrally provided with a second connecting protrusion (16) aligned with the position of each first connecting protrusion (29). The first connecting protrusions (29) and the second connecting protrusions (16) are fixedly connected by bolts.

3. The 400 MW gas turbine cylinder steel casting of claim 1, wherein: The outer surface of the lower cylinder casting steel part (2) is integrally provided with a first reinforcing rib (210) at the lower end of each limiting protrusion (28); the outer surface of the upper cylinder casting steel part (1) is integrally provided with a second reinforcing rib (17) above each upper electric push rod mounting seat (14).

4. The 400 MW gas turbine cylinder steel casting of claim 3, wherein: The upper end of the left support cast steel part (3) is fixed to the left support connecting seat (25) by bolts, and the lower end of the left support cast steel part (3) is integrally provided with the first base plate cast steel part (31).

5. A 400 MW gas turbine cylinder steel casting according to claim 4, characterized in that: The upper end of the right support cast steel part (4) is fixed to the right support connecting seat (27) by bolts, and the lower end of the right support cast steel part (4) is integrally provided with a second base plate cast steel part (41).

6. The 400 MW gas turbine cylinder steel casting of claim 1 or 5, wherein: The first sealing strip mounting groove (13) and the second sealing strip mounting groove (23) together form a sealing strip mounting cavity. An elastic sealing strip (5) is provided in the sealing strip mounting cavity. The elastic sealing strip (5) is made of metal or silicone.

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