CN212205796U

CN212205796U - Combined baffle plate structure for graphite tube array type heat exchanger

Info

Publication number: CN212205796U
Application number: CN202020799052.0U
Authority: CN
Inventors: 顾益
Original assignee: Taicang Yisheng Chemical Anticorrosion Equipment Co ltd
Current assignee: Taicang Yisheng Chemical Anticorrosion Equipment Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-22
Anticipated expiration: 2030-05-14

Abstract

A combined baffle plate structure for a graphite tube type heat exchanger comprises a shell, a tube box, a tube plate, a graphite tube, a baffle plate structure, a first fluid inlet, a first fluid outlet, a second fluid inlet and a second fluid outlet; the baffle plate structures are arranged in five groups at equal intervals along the axial direction of the graphite pipe; graphite tube holes and diversion holes are formed in the baffle plate structure, and the diameter of each diversion hole is smaller than that of each graphite tube hole. The shell-side fluid enters the shell from the first fluid inlet, flows in the shell under the guidance of the baffle plate and then flows out from the first fluid outlet; the tube side fluid enters from a second fluid inlet on the tube box, flows along the graphite tube and flows from a second fluid outlet. And the shell side fluid and the tube side fluid exchange heat to realize the heat exchange function. The baffle plate is provided with a plurality of flow guide holes, and shell-side fluid passes through the flow guide holes and then is generated by jet flow, so that the area of a flow dead zone can be effectively reduced, the uniformity of a shell-side flow field and the transmission capacity of the fluid are improved, and the heat exchange efficiency is improved.

Description

Combined baffle plate structure for graphite tube array type heat exchanger

Technical Field

The utility model relates to a heat exchanger field especially relates to a graphite shell and tube heat exchanger is with combination formula baffle structure.

Background

As one of heat exchange devices widely applied in various industrial fields, the graphite tube type heat exchanger mainly comprises a shell, a tube plate, a heat exchange tube and a baffle plate, and has the main advantages of simple and compact structure, low manufacturing cost and the like. However, the graphite tubular heat exchanger has great defects in use at present, and 1) the traditional baffle plate is a rigid plate, and the graphite tubular heat exchanger has a baffle short circuit phenomenon in the use process, so that the heat transfer efficiency is reduced; 2) the baffle plate side has the problems of poor local heat exchange effect, large flow resistance and the like due to the flow dead zone, so that the heat exchange capacity is influenced, and the heat exchange energy consumption is large.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a graphite shell and tube heat exchanger is with combination formula baffling board structure has solved the problem that exists.

The technical scheme is as follows: the utility model provides a graphite shell and tube heat exchanger is with combination formula baffling board structure, including casing, pipe case, tube sheet, graphite pipe, baffling board structure, first fluid import, first fluid export, second fluid import and second fluid export, the pipe case sets up at the casing both ends and connects through tube sheet and casing, the graphite pipe sets up inside the casing and both ends and tube sheet connection, the baffling board structure sets up inside the casing and connects with the graphite pipe, first fluid import and first fluid export set up at the casing both ends, second fluid import and second fluid export set up respectively on the pipe case at casing both ends; the baffle plates are arranged in five groups in total and are arranged at equal intervals along the axial direction of the graphite pipe; graphite pipe holes and diversion holes are formed in the baffle plate structure, and the diameter of each diversion hole is smaller than that of each graphite pipe hole. The shell-side fluid enters the shell from the first fluid inlet, flows in the shell under the guidance of the baffle plate and then flows out from the first fluid outlet; the tube side fluid enters from a second fluid inlet on the tube box, flows along the graphite tube and flows from a second fluid outlet. In the process, the shell-side fluid and the tube-side fluid exchange heat to realize the heat exchange function. The baffle plate is provided with a plurality of flow guide holes, and shell-side fluid generates jet flow after passing through the flow guide holes, so that the area of a flow dead zone can be effectively reduced, the uniformity of a shell-side flow field and the transmission capacity of the fluid are increased, and the heat exchange efficiency is greatly improved.

Furthermore, the baffle plate structure is an arched baffle plate and is twisted, and the front baffle plate structure rotates 180 degrees around the center of the graphite pipe relative to the rear baffle plate structure. The arch baffle plate has simple structure and small flow dead zone. The notch part of the baffle plate and the shell form a small semicircular closed channel which plays a role in guiding shell-side fluid flowing in the shell. The curved surface of the baffle plate is an arc surface, and the arc baffle plate is utilized to enable the flow curve of the guided shell-side fluid to tend to be smooth and consistent with the medium circulation channel, so that the flow velocity distribution condition of the shell-side medium is favorably improved, the flow dead zone and the heat transfer dead zone are reduced, and the heat transfer efficiency is improved.

Further, the baffle plate structure comprises a first plate, a second plate and a third plate, wherein the second plate is arranged between the first plate and the third plate.

Further, the first plate and the third plate are made of rigid materials, and the second plate is made of plastic materials. Most of the prior baffle plate structures are rigid baffle plates, and the baffle short circuit phenomenon exists, so that the heat transfer efficiency is reduced; a rigid baffle plate is changed into a combined baffle plate structure of two rigid baffle plates and one plastic, so that the baffle short circuit is cut off, and the heat transfer efficiency is greatly improved.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: 1) the baffle plate is provided with a plurality of flow guide holes, so that the uniformity of a lateral flow field of the shell and the fluid transmission capacity are improved, the area of a flow dead zone is effectively reduced, the heat exchange efficiency is greatly improved, and the energy loss is reduced; 2) the twisted arched baffle plate is arranged, and the flow curve of the guided shell-side fluid tends to be smooth by utilizing the arched baffle plate, so that the flow velocity distribution condition of a shell-side medium is favorably improved, and a flow dead zone and a heat transfer dead zone are reduced, thereby improving the heat transfer efficiency; 3) plastic baffle plates are arranged between the rigid baffle plates to cut off the short circuit of the baffle plates, thereby greatly improving the heat transfer efficiency; 4) the structure is simple, the processing is convenient, the obvious effect on energy saving and drag reduction is achieved, and the feasibility is better.

Drawings

Fig. 1 is a perspective sectional view of the present invention;

FIG. 2 is a perspective view of a baffle structure.

In the figure: the shell body 1, the tube box 2, the tube plate 3, the graphite tube 4, the baffle structure 5, the graphite tube hole 51, the diversion hole 52, the first plate 53, the second plate 54, the third plate 55, the first fluid inlet 6, the first fluid outlet 7, the second fluid inlet 8 and the second fluid outlet 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

As shown in fig. 1, the three-dimensional cross-sectional view of the present invention includes a casing 1, a tube box 2, a tube plate 3, a graphite tube 4, a baffle structure 5, a first fluid inlet 6, a first fluid outlet 7, a second fluid inlet 8, and a second fluid outlet 9, wherein the tube box 2 is disposed at two ends of the casing 1 and connected to the casing 1 through the tube plate 3, the graphite tube 4 is disposed inside the casing 1 and connected to the tube plate 3 at two ends, the baffle structure 5 is disposed inside the casing 1 and connected to the graphite tube 4, the first fluid inlet 6 and the first fluid outlet 7 are disposed at two ends of the casing 1, and the second fluid inlet 8 and the second fluid outlet 9 are respectively disposed on the tube box 2 at two ends of the casing 1; the baffle plates 5 are arranged in five groups in total and are arranged at equal intervals along the axial direction of the graphite pipe 4; as shown in fig. 2, which is a perspective view of the baffle structure 5, a graphite tube hole 51 and a diversion hole 52 are provided on the baffle structure 5, and the diameter of the diversion hole 52 is smaller than that of the graphite tube hole 51.

The baffle plate structures 5 are arch baffle plates and are twisted, and the front baffle plate structure 5 rotates 180 degrees around the center of the graphite tube 4 relative to the rear baffle plate structure 5.

The baffle structure 5 includes a first plate 53, a second plate 54, and a third plate 55, the second plate 54 being disposed between the first plate 53 and the third plate 55.

The first plate 53 and the third plate 55 are of a rigid material and the second plate 54 is of a plastic material.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a graphite shell and tube heat exchanger is with combination formula baffling plate structure which characterized in that: the graphite tube baffle device comprises a shell (1), tube boxes (2), tube plates (3), graphite tubes (4), baffle plate structures (5), a first fluid inlet (6), a first fluid outlet (7), a second fluid inlet (8) and a second fluid outlet (9), wherein the tube boxes (2) are arranged at two ends of the shell (1) and are connected with the shell (1) through the tube plates (3), the graphite tubes (4) are arranged inside the shell (1) and are connected with the tube plates (3), the baffle plate structures (5) are arranged inside the shell (1) and are connected with the graphite tubes (4), the first fluid inlet (6) and the first fluid outlet (7) are arranged at two ends of the shell (1), and the second fluid inlet (8) and the second fluid outlet (9) are respectively arranged on the tube boxes (2) at two ends of the shell (1); the baffle plates (5) are arranged in five groups in total and are arranged at equal intervals along the axial direction of the graphite pipe (4); the baffle plate structure (5) is provided with a graphite tube hole (51) and a diversion hole (52), and the diameter of the diversion hole (52) is smaller than that of the graphite tube hole (51).

2. The combined baffle structure for the graphite tube type heat exchanger according to claim 1, wherein: the baffle plate structure (5) is an arched baffle plate and is twisted, and the front baffle plate structure (5) rotates 180 degrees around the center of the graphite pipe (4) relative to the rear baffle plate structure (5).

3. The combined baffle structure for the graphite tube type heat exchanger according to claim 1 or 2, wherein: the baffle structure (5) comprises a first plate (53), a second plate (54) and a third plate (55), the second plate (54) being arranged between the first plate (53) and the third plate (55).

4. The combined baffle structure for the graphite tube type heat exchanger according to claim 3, wherein: the first plate (53) and the third plate (55) are of a rigid material and the second plate (54) is of a plastic material.