CN218210959U

CN218210959U - Butt joint structure of division plate and tube plate of condenser water chamber and condenser shell structure

Info

Publication number: CN218210959U
Application number: CN202222542812.1U
Authority: CN
Inventors: 陈剑豪
Original assignee: Hangzhou Guoneng Steam Turbine Engineering Co Ltd
Current assignee: Hangzhou Guoneng Steam Turbine Engineering Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-03
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to a condenser technical field, concretely relates to butt joint structure and condenser shell structure of division board and tube sheet of condenser hydroecium, fix in order to separate into two upper and lower cavities with the hydroecium to the division board level, pass through sealed pad and tube sheet looks butt to the one end that the division board is close to the tube sheet, sealed pad includes the main part and locates the flank part of both sides about the main part respectively, and both sides wing part and main part surround and form one side open-ended groove structure, under the assembled state, the tip card to the division board is gone into in the groove structure, the main part compresses tightly in order to form sealedly between the tip to the division board and the tube sheet. The end parts of the branch plates can be clamped into the groove structures, so that even if the water pressure in the two cavities is different, the sealing gasket is not easy to shift upwards or downwards under the blocking limitation of the side wing parts on the two sides, and the stability of the sealing gasket is ensured.

Description

Butt joint structure of division plate and tube plate of condenser water chamber and condenser shell structure

Technical Field

The utility model relates to a condenser technical field, concretely relates to butt joint structure and condenser shell structure to division board and tube sheet of condenser hydroecium.

Background

For the existing condenser shell structure, the condenser shell structure mainly comprises a water chamber and a steam chamber which are axially butted through a flange joint, in some condensers, as shown in fig. 1, a split plate 11 which is horizontally arranged is fixedly arranged in the water chamber, and the water chamber is divided into two chambers through the split plate 11; a vertically arranged tube plate 21 is arranged in the steam chamber, and the heat exchange tube is arranged through the tube plate 21; when the steam chamber and the water chamber are butted, the butt joint of the split plate 11 and the tube plate 21 is ensured, that is, the end part of the split plate 11 is required to be pressed against the side wall of the tube plate 21 in the steam chamber, and meanwhile, in order to ensure the sealing performance between two chambers formed by the water chamber, a straight sealing gasket 3 is usually arranged between the end part of the split plate 11 and the tube plate 21, and the sealing gasket 3 is clamped between the end parts of the tube plate and the split plate to form sealing.

For the existing butt joint between the split plate 11 and the tube plate 21 by using the flat sealing gasket 3, certain defects exist during use, firstly, when the water pressure in the two cavities is inconsistent, the flat sealing gasket 3 is pressed to be biased under the action of water pressure, sealing is not used, for example, when the water pressure of the upper cavity is greater than that of the lower cavity, the sealing gasket 3 is easily pressed to be biased to the side where the lower cavity is located under the water pressure of the upper cavity; moreover, the straight sealing gasket 3 is inconvenient to mount, and the sealing gasket 3 needs to be held during mounting and butt joint so as to avoid falling off in the mounting process.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem mentioned in the background art, the utility model aims to provide a butt joint structure to division board and tube sheet of condenser hydroecium.

In order to achieve the above object, the utility model provides a following technical scheme:

the butt joint structure of the split plate and the tube plate of the condenser water chamber is characterized in that the split plate is horizontally fixed in the water chamber to divide the water chamber into an upper cavity and a lower cavity, one end, close to the tube plate, of the split plate is abutted against the tube plate through a sealing gasket, the sealing gasket comprises a main body part and side wing parts respectively arranged on the upper side and the lower side of the main body part, the two side wing parts and the main body part are encircled to form a groove structure with one side opened, the end part of the split plate is clamped into the groove structure in an assembling state, and the main body part is tightly pressed between the end part of the split plate and the tube plate to form sealing.

Compare prior art, the advantage of this scheme of adoption lies in:

to seal up to enclosing to form one side open-ended groove structure by both sides wing part and main part in this scheme, during the butt joint, can block into groove structure to the tip of minute board for both sides wing part is arranged in respectively and is played the restriction and stop the effect to the both sides of minute board, so even the water pressure in two cavitys is different, under the restriction that stops of the flank part of both sides, sealed the pad also is difficult for upwards or skew downwards, guarantees the stability of sealed pad.

Moreover, when the split plate and the tube plate are butted, the sealing gasket forming the groove structure can be directly clamped at the end part of the split plate through the groove structure, so that the sealing gasket is not required to be held in the subsequent butting process.

Preferably, the side wall of the main body part on the side of the opposite side wing part is in a cambered surface structure which is raised towards the side of the tube plate.

The utility model also provides a condenser shell structure, including steam chamber and hydroecium, steam chamber and hydroecium axial butt joint, be equipped with the tube sheet of vertical setting in the steam chamber, the hydroecium internal fixation is equipped with the level setting to the minute board, the tube sheet docks with the butt joint structure to the minute board and tube sheet that adopts foretell a condenser hydroecium to the minute board.

Preferably, the water chamber and the steam chamber are in axial butt joint through a flange joint, the flange joint comprises a steam chamber flange fixed on the peripheral wall of the steam chamber and a water chamber flange fixed on the peripheral wall of the water chamber, the steam chamber flange and the water chamber flange are connected through bolts and nuts, and a sealing ring is arranged between the water chamber flange and the steam chamber flange.

Preferably, a backing plate is further arranged between the water chamber flange and the steam chamber flange, the backing plate is annular and is clamped between the water chamber flange and the steam chamber flange along the circumferential direction of the flange joint, and the thickness of the backing plate is smaller than that of the sealing ring.

Preferably, the base plate is provided with a through hole for the bolt to pass through at a position corresponding to the bolt.

Preferably, a positioning groove for embedding the sealing ring is formed in the inner side wall of one of the steam chamber flange and the water chamber flange.

Preferably, the outer wall of the split plate is lined with an anticorrosive layer.

Other advantages and effects of the present invention are specifically described in the detailed description of the invention.

Drawings

FIG. 1 is a schematic view of a conventional butt joint structure of a tube plate and a split plate;

FIG. 2 is a cross-sectional view of the casing structure of the steam condenser of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view of the gasket in its natural state;

fig. 5 is an enlarged view of a portion B in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below clearly and completely, and it should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 2 to 5, the present embodiment provides a butting structure between a division plate 11 and a tube plate 21 of a water chamber of a condenser, which is mainly used for realizing a sealed butting between an end portion of the division plate 11 and a side wall of the tube plate 21, where the end portion refers to an end of the division plate 11 close to the tube plate 21.

As shown in fig. 2, the bisecting plate 11 is horizontally fixed in the water chamber 1 to divide the water chamber 1 into an upper chamber and a lower chamber, and one end of the bisecting plate 11 close to the tube plate 21 is abutted against the tube plate 21 through the sealing gasket 3.

As shown in fig. 3 and 4, the gasket 3 includes a main body portion 31 and side wing portions 32 respectively provided on upper and lower sides of the main body portion 31, and the entire gasket 3 is of an integral structure.

As shown in fig. 4, the wing portions 32 and the body portion 31 surround to form a groove structure 33 with one side open, and in an assembled state, as shown in fig. 3, the end portion of the split plate 11 is snapped into the groove structure 33, so that the wing portions 32 are respectively located at the upper and lower sides of the end portion of the split plate 11, and the body portion 31 is pressed between the end portion of the split plate 11 and the tube plate 21 to form a seal, in other words, the body portion 31 is pressed between the end portion of the split plate 11 and the tube plate 21 to form a seal by pressing the end portion of the split plate 11 and the tube plate 21.

Through the above setting, during the butt joint, can block in groove structure 33 to the tip of minute board 11 for both sides wing part 32 is arranged in respectively and is played the restriction and stop the effect to the both sides of minute board 11, so even water pressure in two cavitys is different, under the restriction that stops of the flank part 32 of both sides, sealed 3 of filling up is difficult upwards or skew downwards also, guarantees sealed stability of filling up 3.

When the split plate 11 is butted with the tube plate 21, the sealing gasket 3 forming the groove structure 33 can be directly clamped at the end part of the split plate 11 through the groove structure 33, so that the sealing gasket 3 does not need to be held in the subsequent butting process, and the installation is convenient.

In order to improve the sealing effect of the main body section 31, in the present embodiment, in a natural state, that is, in a state where the gasket 3 is not subjected to an external force, as shown in fig. 4, the sidewall of the main body section 31 on the side of the opposite side wing section 32 is in a cambered surface structure protruding toward the side of the tube plate 21, so that the middle position of the main body section 31 (which can also be understood as the left vertex position of the cambered surface) can be pressed more firmly and tightly against the tube plate 21 during the pressing and abutting process of the tube plate 21 and the split plate 11, and the sealing effect is better than that of the conventional flat gasket 3.

Example 2

The present embodiment provides a shell structure of a condenser 2 based on embodiment 1, as shown in fig. 2, including a steam chamber 2 and a water chamber 1, where the steam chamber 2 and the water chamber 1 are axially butted.

A vertically arranged tube plate 21 is arranged in the steam chamber 2, and the tube plate 21 is mainly used for installing a heat exchange tube; the water chamber 1 is internally and fixedly provided with a split plate 11 which is horizontally arranged, the water chamber 1 is divided into two parts through the split plate 11 to form an upper cavity and a lower cavity, and the sides of the two cavities are respectively provided with a water receiving port 13 for connecting an external pipeline.

In order to improve the corrosion resistance of the opposite sub-plate 11, as shown in fig. 3, in this embodiment, the outer wall of the opposite sub-plate 11 is lined with a corrosion-resistant layer 111, and the corrosion-resistant layer 111 may be made of natural rubber and neoprene, or may be made of other materials with corrosion resistance, which is not limited herein.

It can be understood that the tube plate 21 is fixed in the steam chamber 2, the partition plate 11 is fixed in the water chamber 1, and when the steam chamber 2 and the water chamber 1 are butted, the end of the partition plate 11 is butted with the tube plate 21, wherein in the present embodiment, the tube plate 21 and the partition plate 11 are butted by adopting the butting structure of the partition plate 11 and the tube plate 21 described in embodiment 1, that is, a sealing gasket 3 as described in embodiment 1 is arranged between the end of the partition plate 11 and the tube plate 21.

In this embodiment, the water chamber 1 and the steam chamber 2 are axially abutted mainly through a flange joint, specifically, as shown in fig. 5, the flange joint includes a steam chamber flange 22 fixed on the outer peripheral wall of the steam chamber 2 and a water chamber flange 12 fixed on the outer peripheral wall of the water chamber 1, the steam chamber flange 22 and the water chamber flange 12 are connected through a bolt 4 and a nut 5, and a seal ring 6 is arranged between the water chamber flange 12 and the steam chamber flange 22, so that the water chamber flange 12 and the steam chamber flange 22 are fastened together under the fastening of the bolt 4 and the nut 5, and the seal ring 6 can form a seal between the two flanges.

In the time of practical use, as shown in fig. 2, because water receiving port 13 on hydroecium 1 can be connected with external pipeline (not shown in the figure), these external pipelines can produce axial stress when using, still can appear sometimes to the axial skew of hydroecium one side to can produce a thrust towards steam chamber 2 to hydroecium 1, can make hydroecium flange 12 further extrude sealing washer 6 between two flanges under this thrust, thereby press sealing washer 6 to bad easily, therefore further improvement is made to this embodiment:

as shown in fig. 5, a backing plate 7 is further disposed between the water chamber flange 12 and the steam chamber flange 22, the backing plate 7 is annular and is clamped between the water chamber flange 12 and the steam chamber flange 22 along the circumferential direction of the flange joint, in other words, the backing plate 7 surrounds between the two flanges along the circumferential direction of the two flanges, the two flanges clamp the backing plate 7 between the two flanges under the locking of the bolts 4 and the nuts 5, and the thickness of the backing plate 7 is smaller than that of the seal ring 6 to ensure that the seal ring 6 can be compressed to form a seal, as an alternative embodiment, the backing plate 7 may be made of stainless steel and has a thickness of 3mm, and the seal ring 6 may be made of rubber strips and the like and has a thickness of 6mm.

Through the above-mentioned hydroecium flange 12 and the locking back of steam chamber flange 22 through bolt 4 and nut 5 that sets up, thereby sealing washer 6 is sealed by hydroecium flange 12 and steam chamber flange 22 extrusion compression formation between two flanges, and simultaneously, backing plate 7 also centre gripping is between these two flanges, form limiting action between two flanges, the compression volume of restriction sealing washer 6, even so hydroecium 1 receives great thrust, under the restriction of backing plate 7 blocks, hydroecium flange 12 can not further compression sealing washer 6 again, thereby alright prevent that sealing washer 6 from being crushed.

In order to ensure the installation stability of the backing plate 7, in this embodiment, the position of the backing plate 7 corresponding to the bolt 4 is provided with a through hole for the bolt 4 to pass through, the bolt 4 can be ensured to normally pass through the through hole, and the bolt 4 can also play a certain limiting role on the backing plate 7 to prevent the backing plate 7 from being greatly deviated during installation.

In order to facilitate the installation of the sealing ring 6, in this embodiment, the inner side wall of one of the steam chamber flange 22 and the water chamber flange 12 is provided with a positioning groove 221 for the sealing ring 6 to be embedded into, in this embodiment, the inner side wall of the steam chamber flange 22 is provided with the positioning groove 221, and during the installation, the sealing ring 6 is firstly embedded into the positioning groove 221.

In the integral installation of the embodiment, the end part of the halving plate 11 is clamped into the sealing gasket 3, the sealing ring 6 and the backing plate 7 are arranged between the water chamber flange 12 and the steam chamber flange 22, the two flanges are fixed together by using the bolt 4 and the nut 5, and in the process, the end part of the halving plate 11 is tightly pressed against the tube plate 21 through the sealing gasket 3, and the installation is completed in the state shown in fig. 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The butt joint structure of the split plate and the tube plate of the condenser water chamber, the split plate is horizontally fixed in the water chamber to divide the water chamber into an upper cavity and a lower cavity, one end of the split plate close to the tube plate is connected with the tube plate through a sealing gasket, the sealing gasket comprises a main body part and side wing parts respectively arranged at the upper side and the lower side of the main body part, the two side wing parts and the main body part surround to form a groove structure with one side opened, the end part of the split plate is clamped into the groove structure in an assembling state, and the main body part is tightly pressed between the end part of the split plate and the tube plate to form sealing.

2. The butting structure for the bisecting plate and the tube plate of the water chamber of the condenser according to claim 1, wherein the side wall of the main body portion on the side of the opposite side wing portion is in a cambered surface structure protruding towards one side of the tube plate.

3. The condenser shell structure comprises a steam chamber and a water chamber, wherein the steam chamber and the water chamber are axially butted, a vertically arranged tube plate is arranged in the steam chamber, and a horizontally arranged split plate is fixedly arranged in the water chamber, and the condenser shell structure is characterized in that the tube plate and the split plate are butted by adopting the butt joint structure of the split plate and the tube plate of the water chamber of the condenser according to claim 1 or 2.

4. The condenser shell structure according to claim 3, wherein the water chamber and the steam chamber are axially butted through a flange joint, the flange joint comprises a steam chamber flange fixed on the outer peripheral wall of the steam chamber and a water chamber flange fixed on the outer peripheral wall of the water chamber, the steam chamber flange and the water chamber flange are connected through a bolt and a nut, and a sealing ring is arranged between the water chamber flange and the steam chamber flange.

5. The condenser shell structure according to claim 4, wherein a gasket plate is further arranged between the water chamber flange and the steam chamber flange, the gasket plate is annular and clamped between the water chamber flange and the steam chamber flange along the circumferential direction of the flange joint, and the thickness of the gasket plate is smaller than that of the sealing ring.

6. The condenser shell structure of claim 5, wherein the base plate is provided with through holes for bolts to pass through corresponding to the positions of the bolts.

7. The condenser shell structure of claim 4, wherein a positioning groove for embedding the sealing ring is formed on the inner side wall of one of the steam chamber flange and the water chamber flange.

8. The condenser shell structure of claim 3, wherein the outer wall of the counter plate is lined with an anticorrosive layer.