阅读说明：本技术 一种汽轮机水压试验堵板 (Steam turbine hydrostatic test closure plate ) 是由 庄健 龙国强 吴玉昊 崔萍 刘小青 于 2020-12-01 设计创作，主要内容包括：本发明所述的一种汽轮机水压试验堵板,包括堵板本体和肋板组,所述堵板本体呈圆形,所述肋板组包括第一肋板组和第二肋板组,第一肋板组和第二肋板组分别由若干个数量相等且相互间隔平行的单个第一肋板筋条和单个第二肋板筋条构成,两组肋板组相互交错设置于所述堵板本体至少一侧面的中部,所述第一肋板筋条上开设有与第二肋板筋条相配合的豁口。通过第一肋板组和第二肋板组相互交错于堵板本体的中部,同时经豁口增加第一肋板筋条与第二肋板筋条的连接强度,以满足堵板中部在水压试验中的抗弯能力。(The blocking plate for the steam turbine water pressure test comprises a blocking plate body and a rib plate group, wherein the blocking plate body is circular, the rib plate group comprises a first rib plate group and a second rib plate group, the first rib plate group and the second rib plate group are respectively composed of a plurality of single first rib plate ribs and a plurality of single second rib plate ribs which are equal in number and are parallel to each other at intervals, the two rib plate groups are arranged in the middle of at least one side face of the blocking plate body in a staggered mode, and openings matched with the second rib plate ribs are formed in the first rib plate ribs. Through first floor group and second floor group crisscross each other in the middle part of closure plate body, increase the joint strength of first floor rib and second floor rib through the opening simultaneously to satisfy the bending resistance of closure plate middle part in water pressure test.)

1. The utility model provides a steam turbine water pressure test closure plate, its characterized in that, includes closure plate body (1) and rib plate group, closure plate body (1) is circular, rib plate group includes first rib plate group and second rib plate group, and first rib plate group and second rib plate group respectively by a plurality of quantity equal and single first rib plate rib (2) and single second rib plate rib (3) that the interval is parallel each other constitute, two sets of rib plate groups crisscross each other set up in the middle part of the at least side of closure plate body (1), seted up on first rib plate rib (2) with second rib plate rib (3) matched with opening (21).

2. The steam turbine hydrotest closure plate of claim 1, wherein the first set of rib plates and the second set of rib plates are arranged in a criss-cross pattern.

3. The steam turbine hydrotest closure plate of claim 2, wherein the height of said second rib (3) is equal to the depth of said gap (21).

4. The steam turbine hydrostatic test closure plate of claim 3, wherein the notches (21) are alternately spaced at the top and bottom edges of the first rib (2).

5. The steam turbine hydrostatic test closure plate according to claim 1, characterized in that the lengths of the first rib (2) and the second rib (3) are both greater than the radius of the closure plate body (1).

6. The steam turbine hydrostatic test closure plate according to any one of claims 1 to 5, wherein a space enclosed by the two first rib bars (2) and the two second rib bars (3) is provided with a reinforcing member for connecting the first rib bars (2), the second rib bars (3) and the closure plate body (1).

7. The steam turbine water pressure test plugging plate according to claim 1, wherein at least one side surface of the plugging plate body (1) is provided with a ring-shaped plate (4), the ring-shaped plate (4) is arranged outside the rib plate group and close to the edge of the plugging plate body (1), and third rib ribs (5) for connecting the ring-shaped plate (4) and the plugging plate body (1) are uniformly distributed on the outer side surface of the ring-shaped plate (4).

8. The steam turbine water pressure test plugging plate according to claim 7, wherein the inner side surface of the annular plate (4) is uniformly provided with fourth rib ribs (6) for connecting the annular plate (4) and the plugging plate body (1), and the fourth rib ribs (6) and the third rib ribs (5) are arranged in a staggered and spaced manner.

9. The steam turbine hydrotest closure plate of claim 7, characterized in that the inner side of the annular plate (4) is connected to the ends of at least one first rib (2) and at least one second rib (3).

Technical Field

The invention belongs to the technical field of a hydraulic pressure test blocking plate, and particularly relates to a steam turbine hydraulic pressure test blocking plate.

Background

The blocking plate in the prior art is cut into a circular shape by a steel plate, and a sealing groove is processed on the blocking plate body to be used for blocking a chamber in a steam turbine hydrostatic test. The floor is the strip by the steel sheet cutting, and a plurality of floors are radial arrangement on stifled plate body for the bending resistance of whole stifled board of reinforcing. The central position of the blocking plate body is provided with a central block which connects the rib plates together to prevent the mutual interference of welding seams.

The length of a single ribbed plate is smaller than the radius of the blocking plate, the radially arranged ribbed plates can not effectively enhance the bending resistance of the middle part of the blocking plate, and when the hydrostatic test pressure is large, a welding seam cracks nearby a central block frequently, so that the whole blocking plate is bent and deformed, and the hydrostatic test can not be completed.

Disclosure of Invention

The invention provides a steam turbine hydrostatic test blocking plate, aiming at solving the problem that a radial rib plate in the prior art cannot meet the bending resistance of the middle part of the blocking plate.

The invention is realized by the following technical scheme.

The utility model provides a steam turbine water pressure test closure plate, includes closure plate body and rib group, the closure plate body is circular, rib group includes first rib group and second rib group, and first rib group and second rib group equal and the single first rib and the single second rib that separate the parallel each other by a plurality of numbers respectively constitute, two sets of rib groups crisscross each other set up in the middle part of the at least side of closure plate body, seted up on the first rib with second rib matched with opening. Through first floor group and second floor group crisscross each other in the middle part of closure plate body, increase the joint strength of first floor rib and second floor rib through the opening simultaneously to satisfy the bending resistance of closure plate middle part in water pressure test.

In a further improvement of the present invention, the first rib groups and the second rib groups are arranged in a criss-cross manner. The criss-cross rib plate groups effectively increase the coverage area of the blocking plate body.

In a further development of the invention, the height of the second rib is equal to the depth of the gap. The second rib plate rib is embedded in the notch and connected with the first rib plate rib so as to increase the connection strength between the first rib plate rib and the second rib plate rib.

In a further improvement of the present invention, the notches are spaced at staggered intervals on the top and bottom edges of the first rib. A plurality of second floor rib forms with first floor rib and folds and press each other, has increased the bending resistance of closure plate body on the whole.

The invention is further improved in that a reinforcing member for connecting the first rib plate ribs, the second rib plate ribs and the blocking plate body is arranged in a space enclosed by the two first rib plate ribs and the two second rib plate ribs. The bending resistance of the first rib plate rib and the second rib plate rib in a small range area to the blocking plate body is further increased through the reinforcing piece.

The invention further improves the structure that at least one side surface of the blocking plate body is provided with an annular plate, the annular plate is arranged outside the rib plate group and close to the edge of the blocking plate body, and third rib plates for connecting the annular plate and the blocking plate body are uniformly distributed on the outer side surface of the annular plate. The annular plate has increased the structural strength of closure plate body border department through the third floor rib.

The invention is further improved in that fourth rib strips for connecting the annular plate and the blocking plate body are uniformly distributed on the inner side surface of the annular plate, and the fourth rib strips and the third rib strips are arranged at intervals in a staggered mode. Further increasing the structural strength of the annular plate to the edge of the blocking plate body.

In a further development of the invention, the inner side of the annular plate is connected to the ends of at least one first rib and at least one second rib. Further increasing the structural strength of the annular plate to the edge of the blocking plate body.

According to the technical scheme, the invention has the beneficial effects that: through first floor group and second floor group crisscross each other in the middle part of closure plate body, increase the joint strength of first floor rib and second floor rib through the opening simultaneously to satisfy the bending resistance of closure plate middle part in water pressure test.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 3 is a schematic view of a combination of a first rib and a second rib in accordance with an embodiment of the present invention.

In the drawings: 1. the closure plate comprises a closure plate body, 2, a first rib plate rib, 21, a notch, 3, a second rib plate rib, 4, an annular plate, 5, a third rib plate rib, 6 and a fourth rib plate rib.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

The first embodiment is as follows:

as shown in the attached drawing, the steam turbine hydrostatic test closure plate comprises a closure plate body 1 and a rib plate group, wherein the closure plate body 1 is circular, the rib plate group comprises a first rib plate group and a second rib plate group, the first rib plate group and the second rib plate group are respectively composed of a plurality of single first rib plate ribs 2 and single second rib plate ribs 3 which are equal in number and parallel at intervals, two groups of rib plate groups are arranged in the middle of at least one side face of the closure plate body 1 in a mutually staggered mode, and the first rib plate ribs 2 are provided with notches 21 matched with the second rib plate ribs 3. Through first floor group and second floor group crisscross each other in the middle part of closure plate body 1, increase the joint strength of first floor rib 2 and second floor rib 3 through opening 21 simultaneously to satisfy the bending resistance of closure plate middle part in water pressure test.

The first rib plate group and the second rib plate group are arranged in a criss-cross mode. The criss-cross rib plate groups effectively increase the coverage area of the blocking plate body 1.

The height of the second rib plate rib 3 is equal to the depth of the notch 21, and the second rib plate rib 3 is embedded in the notch 21 and fixedly welded with the first rib plate rib 2. The second rib plate rib 3 is embedded in the gap 21 and connected with the first rib plate rib 2 so as to increase the connection strength between the first rib plate rib 2 and the second rib plate rib 3.

The gaps 21 are arranged on the top edge and the bottom edge of the first rib plate rib 2 at intervals in a staggered mode. A plurality of second floor rib 3 and first floor rib 2 form and fold mutually and press, have increased the bending resistance of closure plate body 1 on the whole.

The space enclosed by the two first rib plates 2 and the two second rib plates 3 is internally provided with a reinforcing member fixedly connected with the first rib plates 2, the second rib plates 3 and the blocking plate body 1. The bending resistance of the first rib 2 and the second rib 3 in a small range area to the blocking plate body 1 is further increased through the reinforcing piece.

The welding of at least one side of closure plate body 1 has annular plate 4, annular plate 4 sets up in the outside of gusset group and is close to closure plate body 1's border department, the lateral surface equipartition of annular plate 4 has the third floor rib 5 of fixed connection annular plate 4 and closure plate body 1. The annular plate 4 has increased the structural strength of closure body 1 border department through third floor rib 5.

The inner side surface of the annular plate 4 is evenly provided with fourth rib ribs 6 for fixedly connecting the annular plate 4 and the blocking plate body 1, and the fourth rib ribs 6 and the third rib ribs 5 are arranged at staggered intervals. Further increasing the structural strength of the annular plate 4 to the edge of the closure body 1.

Example two:

as shown, otherwise, the inner side of the annular plate 4 is welded to the ends of at least one first rib 2 and at least one second rib 3. Further increasing the structural strength of the annular plate 4 to the edge of the closure body 1.

According to the steam turbine hydraulic test blocking plate, the first rib plate group and the second rib plate group are mutually staggered in the middle of the blocking plate body, and meanwhile, the connection strength of the first rib plate ribs and the second rib plate ribs is increased through the notches, so that the bending resistance of the middle of the blocking plate in a hydraulic test is met.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.