CN203163559U - Horizontal-type heat exchanger structure - Google Patents

Abstract

The utility model relates to a horizontal heat exchanger structure, which includes a shell and a tube bundle supported by a tube plate and arranged in the shell, and the shell is provided with an inlet and an outlet of the shell, and is characterized in that: A cylinder is sheathed in the housing, and the cylinder is fixed in the housing by at least three support plates, and these support plates separate the cavity between the housing and the cylinder into mutually independent entrances. area and an outflow area, the cylinder body is provided with a plurality of inlet holes corresponding to the entry area, and a plurality of discharge holes are provided on the cylinder body corresponding to the outflow area; the shell side inlet corresponds to The inlet area is set on the upper part of the shell, and the shell-side outlet is set on the lower part of the shell corresponding to the outflow area; the tube bundle and the tube sheet are set on the shell Inside the body, the tube body is provided with a tube-side inlet and a tube-side outlet connected to both ends of the tube bundle. The fluid pressure drop in the shell of the heat exchanger is small and the pressure is stable, which is especially suitable for supporting large-scale equipment.

Description

A horizontal heat exchanger structure

technical field

The utility model relates to a horizontal heat exchanger structure.

Background technique

Existing horizontal heat exchangers usually include a shell for circulating cooling medium, and a plurality of heat exchange tubes are arranged in the shell, and these heat exchange tubes are supported by a plurality of staggered baffles, and the baffles simultaneously It also serves to enhance the turbulent flow of the fluid flowing between the heat exchange tubes, thereby increasing the heat transfer coefficient and improving the heat transfer efficiency, and by changing the position and number of the baffles, the flow rate of the fluid in the shell side can also be controlled , so as to control the pressure drop and heat transfer effect of the fluid in the shell side.

The heat exchange effect of this type of horizontal heat exchanger is relatively ideal, but when it is necessary to control the pressure drop of the fluid in the shell side or change the pressure drop in the shell side according to needs, the structure of the heat exchanger needs to be further improved.

Contents of the invention

The technical problem to be solved by the utility model is to provide a horizontal heat exchanger structure capable of effectively controlling the pressure drop of the fluid in the shell side in view of the status quo of the prior art.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: the horizontal heat exchanger structure includes a shell and a tube bundle supported by a tube plate and arranged in the shell. 1. The outlet, characterized in that: a cylinder is sleeved inside the housing, and the cylinder is fixed in the housing by at least three support plates, and these support plates connect the housing and the cylinder The cavity is divided into an inlet area and an outlet area which are independent of each other, and the cylinder body is provided with a plurality of inlet holes corresponding to the inlet area, and a plurality of outlet holes are arranged on the cylinder body corresponding to the outlet area The shell-side inlet is arranged on the upper part of the shell corresponding to the inlet zone, and the shell-side outlet is set on the lower part of the shell corresponding to the outflow zone; the tube bundle and the The tube plate is arranged in the cylinder, and the cylinder is provided with a tube-side inlet and a tube-side outlet connected to both ends of the tube bundle.

Preferably, there are four supporting plates, which are evenly distributed along the circumferential direction of the cylinder; The inlet area is formed, and the two adjacent support plates located below and the corresponding parts of the casing and the cylinder are enclosed to form the outflow area. This structure can not only meet the requirements of connection strength, but also simplify the structure relatively.

In order to further strengthen the connection strength of the supporting boards, a plurality of reinforcing boards can be provided on the inner wall of the housing, and these reinforcing boards are correspondingly fixed in pairs on both sides of each of the supporting boards.

Compared with the prior art, the flow distance of the fluid in the shell side of the horizontal heat exchanger structure provided by the utility model is greatly reduced, and the cross-sectional area of the flow is greatly increased, which avoids the phenomenon that the fluid in the shell side stagnates and blocks the gas , The pressure drop in the shell side is greatly reduced, and the pressure is stable, which solves the problem of requiring control of the pressure drop. The horizontal heat exchanger structure is especially suitable for heat exchange of supporting large-scale equipment.

Description of drawings

Fig. 1 is the sectional schematic diagram of the assembly structure of the utility model embodiment;

Fig. 2 is a side view (partial section) of Fig. 1 .

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, the structure of the horizontal heat exchanger includes:

The shell 1 is a closed container with a shell-side inlet 11 on its upper part and a shell-side outlet 12 on its lower part.

The cylinder body 2 is sheathed in the housing 1 at a certain distance from the housing 1 and is fixed on the inner wall of the housing by four support plates 5 . The two ends of the cylinder body are respectively provided with a tube pass inlet and a tube pass outlet.

The tube bundle 3 includes a plurality of heat exchange tubes arranged parallel to each other. The tube bundle 3 is arranged in the cylinder body 2 along the axial direction of the cylinder body, and a plurality of mutually parallel tube plates 4 are arranged on the inner radial direction of the cylinder body 2. The heat pipes are installed on these tube sheets 4, and are limited by the support of the tube sheets 4. The two ends of the tube bundle communicate with the tube-side inlet and the tube-side outlet respectively provided on the cylinder body 2 .

There are four support plates 5, which are arranged in the cavity between the casing 1 and the cylinder body 2, and are evenly arranged along the circumference of the cylinder body, and are used to fix the cylinder body 2 on the inner wall of the casing. The first sides of the four support plates in this embodiment are welded on the inner wall of the housing 1, and the second sides opposite to the first sides are welded on the outer wall of the cylinder 2, and, in order to strengthen the support plates Connection strength, on the inner wall of the housing, there are many reinforcement plates 6 welded, these reinforcement plates are in groups of two, and correspondingly welded on the opposite side surfaces of the support plate 5, and each support plate is provided with multiple groups at intervals Reinforcing plate.

The upper two supporting plates form an independent inlet area 7 with the corresponding parts of the shell and the shell, and the two lower supporting plates form an outflow area 8 with the corresponding shell and shell. The shell-side inlet 11 faces the entry zone 7 , and the shell-side outlet 12 faces the outflow zone 8 . Moreover, a plurality of inlet holes are evenly distributed on the cylinder body corresponding to the inlet area, and a plurality of discharge holes are evenly distributed on the cylinder body part corresponding to the outflow area.

The working principle of the heat exchanger is described as follows:

After the first fluid enters the inlet zone 7 from the shell side inlet 11, it enters the cylinder uniformly through the inlet hole, exchanges heat with the second fluid flowing in the tube bundle, enters the outflow zone through the discharge hole, and then is discharged from the shell side outlet.

The structure of the heat exchanger has a short flow through the shell and cylinder, large heat exchange area, small fluid pressure drop and stable pressure in the shell, and is especially suitable for supporting large-scale equipment.

Claims (3)

1. horizontal heat exchanger structure, comprise housing and supported the tube bank be arranged in the described housing by tube sheet, have the shell side import and export on the described housing, it is characterized in that: be arranged with cylindrical shell in the described housing, this cylindrical shell is fixed in the described housing by at least three gripper shoes, and these gripper shoes are divided into separate entering the district and flow out the district with the cavity between described housing and the described cylindrical shell, be provided with a plurality of holes that enter corresponding to the described district that enters on the described cylindrical shell, be provided with a plurality of taps corresponding to described outflow district on the described cylindrical shell; Described shell side import is corresponding to the described top that enters the district and be arranged on described housing, and described shell side outlet is corresponding to described outflow district and be arranged on described lower part of frame; Described tube bank and described tube sheet are arranged in the described cylindrical shell, and described cylindrical shell is provided with tube side import and the tube side outlet that is connected with described tube bank two ends.

2. horizontal heat exchanger structure according to claim 1 is characterized in that described gripper shoe has four, and evenly distributes along the circumferencial direction of described cylindrical shell; Two adjacent gripper shoes that are positioned at the top are gone along with sb. to guard him with the counterpart of described housing and described cylindrical shell and are formed the described district that enters, and are positioned at two adjacent gripper shoes of below and the counterpart of described housing and described cylindrical shell and go along with sb. to guard him the described outflow of formation district.

3. horizontal heat exchanger structure according to claim 1 and 2 is characterized in that the inwall of described housing is provided with the polylith stiffener, and these stiffeners are the corresponding both sides that are fixed on each described gripper shoe in groups in twos.

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