Heat exchanger sealing structure

Abstract

The utility model relates to the technical field of heat exchanger sealing structures, and discloses a heat exchanger sealing structure which comprises a shell, a first pipe connecting opening is formed in the upper portion of the shell, a first connecting disc is fixedly connected to the right end of the shell, the first connecting disc is in contact connection with a second connecting disc through a locking bolt, and the second connecting disc is fixedly connected to the left end of an end socket. The sealing performance and stability of the heat exchanger are greatly improved by improving a sealing structure at the joint of the heat exchanger, the sealing performance and stability of the heat exchanger are greatly improved by improving the connecting mode of the shell and the end socket, and the sealing performance and stability of the heat exchanger are improved by improving the connecting mode of the shell and the end socket. The operation time of mounting and dismounting is greatly shortened, and the working efficiency of operators is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger sealing structure technical field, concretely is a kind of heat exchanger sealing structure. BACKGROUND

[0002] Heat exchanger plays an important role in chemical industry, petroleum, power, food and other many industrial production, heat exchanger not only can be recycled and utilize waste heat, reduce energy consumption, improve energy utilization, also can accurately control temperature, ensure that production process is carried out under the optimum temperature condition, to improve product quality, wherein shell-and-tube heat exchanger is installed when header, it is usually sealed installation using flange plate cooperation gasket, however, in the installation process, the sequential tightening order of bolt and nut needs to be paid attention to, otherwise it can cause the situation of not tight sealing, and along with the increase of heat exchanger shell diameter, the number of bolt and nut that need to be tightened is more, affect installation and dismounting efficiency, therefore, how to provide a kind of heat exchanger sealing structure to improve sealing effect and facilitate dismounting is particularly important. SUMMARY

[0003] The utility model aims at providing a kind of heat exchanger sealing structure, improve sealing effect and facilitate installation and dismounting.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of heat exchanger sealing structure, including shell, the first connecting pipe opening is set in the upper portion of the shell, the first connecting disc is fixedly connected in the right end of the shell, the first connecting disc is contacted and is connected with the second connecting disc by locking bolt, the second connecting disc is fixedly connected in the left end of header, the second connecting pipe opening is set in the lower portion of the header, the first connecting disc and the second connecting disc are set with multiple first through holes that are correspondingly and evenly distributed.

[0005] Preferably, the locking bolt one end is set with right trapezoidal groove on both sides, the locking bolt head portion end passes through second through hole and is fixedly connected with mounting plate by positioning pin.

[0006] Preferably, the right trapezoidal groove of the locking bolt is connected with trapezoidal block, the oblique waist surface inclination of the trapezoidal block is consistent with the oblique waist surface inclination of the right trapezoidal groove, and the two oblique waist surfaces are contact and slidingly connected, the right trapezoidal block is contact and slidingly connected with the first connecting disc and the second connecting disc, the bottom surface of the trapezoidal block is fixedly connected with the inner wall of the locking ring, and the trapezoidal block is gradually locked with the first connecting disc and the second connecting disc along the waist surface of the right trapezoidal groove.

[0007] Preferably, the mounting plate is composed of two identical semicircular rings, the mounting plate is set with second through hole corresponding to the first through hole, and the mounting plate is set with positioning hole corresponding to the position of the second through hole on the side edge, so that multiple locking bolts can be installed in the first through hole at one time, and the installation and dismounting efficiency is improved.

[0008] Preferably, the locking ring is composed of two identical semicircular rings, one end of the locking ring is fixedly connected with the hinge, the other end of the locking ring is fixedly connected with the open hole end lug, the inner side of the locking ring is fixedly connected with the second sealing gasket, the two semicircular rings are gradually closed by screwing the bolt nut through the end lug, thereby the trapezoidal block is displaced inward, and the first connecting disc and the second connecting disc are locked by screwing one bolt nut, so that the locking and fixing purpose is achieved.

[0009] Compared with the prior art, the heat exchanger sealing structure has the following beneficial effects:

[0010] The heat exchanger sealing structure changes the previous condition that locking bolts and nuts are installed one by one, and the sealing effect of the sealing gasket is affected by the tightening sequence of the single bolt and nut, and only one bolt nut needs to be tightened to lock all the locking bolts synchronously, so that the sealing effect of the sealing gasket is improved, the sealing head and the shell are quickly installed or disassembled, the working efficiency of the operator is greatly improved, and the sealing gap between the first connecting disc and the second connecting disc is sealed again by the sealing gasket arranged on the inner wall of the locking ring, so that the sealing performance and stability of the heat exchanger are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0012] Figure 1 It is a structural schematic view of the present application;

[0013] Figure 2 It is a structural schematic right view of the present application;

[0014] Figure 3 It is a disassembled structural schematic view of the present application;

[0015] Figure 4 It is a trapezoidal block and locking bolt connection structural schematic view of the present application.

[0016] In the drawings: 1 shell, 101 first pipe port, 102 first connecting disc, 1021 first through hole, 2 sealing head, 201 second pipe port, 202 second connecting disc, 3 locking ring, 301 trapezoidal block, 302 end lug, 303 bolt nut, 304 hinge, 305 first sealing gasket, 4 mounting plate, 401 positioning pin, 402 locking bolt, 4021 right-angle trapezoidal groove, 403 second through hole, 404 positioning hole, 5 second sealing gasket. DETAILED DESCRIPTION

[0017] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model.

[0018] Please refer to Figures 1-4 A heat exchanger sealing structure, including the casing 1, the casing 1 upper portion is set with first pipe port 101, the casing 1 right end is fixed with first connecting disc 102, first connecting disc 102 is contacted and is connected with second connecting disc 202 by locking bolt 402, second connecting disc 202 is fixed on the left end of the head 2, the head 2 lower portion is set with second pipe port 201, first connecting disc 102 and second connecting disc 202 are set with a plurality of corresponding uniform distribution's first through-hole 1021.

[0019] Wherein, the locking bolt 402 one end both sides are set with right trapezoidal groove 4021, the locking bolt 402 head end passes through second through-hole 403 and is fixedly connected with mounting plate 4 by positioning pin 401.

[0020] Wherein, the right trapezoidal groove 4021 of locking bolt 402 is matched and connected with trapezoidal block 301, the oblique waist surface inclination of trapezoidal block 301 is consistent with the oblique waist surface inclination of right trapezoidal groove 4021, and the two oblique waist surfaces are contact and slidingly connected, the right angle waist surface of trapezoidal block 301 is in contact and slidingly connected with first connecting disc 102 and second connecting disc 202, the bottom surface of trapezoidal block 301 is fixedly connected with the inner wall of locking ring 3, trapezoidal block 301 is gradually locked with first connecting disc 102 and second connecting disc 202 along the oblique waist surface of right trapezoidal groove 4021.

[0021] Wherein, the mounting plate 4 is composed of two same semicircular rings, the mounting plate 4 is set with second through-hole 403 corresponding to first through-hole 1021, the mounting plate 4 side edge is set with positioning hole 404 corresponding to the position of second through-hole 403, a plurality of locking bolts 402 can be installed into first through-hole 1021 at one time, and the installation and disassembly efficiency is improved.

[0022] Wherein, the locking ring 3 is composed of two same semicircular rings, one end of the locking ring 3 is fixedly connected with hinge 304, the other end of the locking ring 3 is fixedly connected with open-end lug 302, the inner side of the locking ring 3 is fixedly connected with second sealing gasket 5, the bolt nut 303 passes through the lug 302 and is tightened to gradually close the two semicircular rings of the locking ring 3, so that the trapezoidal block 301 is displaced inward, the first connecting disc 102 and the second connecting disc 202 can be locked by tightening one bolt nut 303, and finally the fixing purpose is achieved.

[0023] Working principle: first, the shell 1 and the first through hole 1021 on the head 2 punch on butt joint, secondly, the two mounting plates 4 connected with locking bolt 402 are installed on one side of the second connecting disc 202, and the locking bolt 402 is inserted into the first through hole 1021 in turn, then the locking ring 3 is sleeved on the interface gap of the first connecting disc 102 and the second connecting disc 202, and the trapezoidal block 301 is matched and docked into the right trapezoidal groove 4021, finally the bolt nut 303 is threaded through the end ear 302 of the opening, the bolt nut 303 is gradually tightened, the two semicircular rings of the locking ring 3 are gradually closed, and then the trapezoidal block 301 is displaced inward and slides and extrudes the inclined waist surface of the right trapezoidal groove 4021, accompanied by the second sealing gasket 5 and the first sealing gasket 305 being extruded and gradually compressed, so as to achieve the purpose of locking and sealing.

[0024] In the description of the present application, it should be pointed out that, unless otherwise stated, the meaning of "a plurality of" is two or more than two; The terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0025] Although the content of the present application has been described in detail by the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation on the present application. After reading the above content, various modifications and alternatives of the present application will be obvious to those skilled in the art. Therefore, the protection scope of the present application should be defined by the appended claims.

Claims

1. A heat exchanger seal structure, characterized by: The utility model provides a sealing structure of a shell and a head, which comprises a shell (1), a first connecting disc (102) is fixedly connected to the right end of the shell (1), the first connecting disc (102) is connected with a second connecting disc (202) through a locking bolt (402), the second connecting disc (202) is fixedly connected to the left end of a head (2), the head (2) is provided with a second pipe opening (201) in the lower part, the first connecting disc (102) and the second connecting disc (202) are provided with a plurality of first through holes (1021) which are uniformly distributed, the locking bolt (402) is provided with a right trapezoidal groove (4021) on both sides of one end, the locking bolt (402) is fixedly connected with a mounting plate (4) through a positioning pin (401) by penetrating a second through hole (403), the right trapezoidal groove (4021) of the locking bolt (402) is matched with a trapezoidal block (301), the oblique waist surface inclination of the trapezoidal block (301) is consistent with the oblique waist surface inclination of the right trapezoidal groove (4021), and the two oblique waist surfaces are connected in sliding contact, the right angle waist surface of the trapezoidal block (301) is connected in sliding contact with the first connecting disc (102) and the second connecting disc (202), and the bottom surface of the trapezoidal block (301) is fixedly connected with the inner wall of a locking ring (3).

2. The heat exchanger seal structure of claim 1, wherein: The mounting plate (4) is composed of two same semicircular rings, the mounting plate (4) is provided with a second through hole (403) corresponding to the first through hole (1021), and the mounting plate (4) is provided with a positioning hole (404) corresponding to the position of the second through hole (403) on the side edge.

3. The heat exchanger seal of claim 1, wherein: The locking ring (3) is composed of two same semicircular rings, one end of the locking ring (3) is fixedly connected to a hinge (304), the other end of the locking ring (3) is fixedly connected with a hole end lug (302), and the inner side of the locking ring (3) is fixedly connected with a second sealing gasket (5).

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