CN218155663U

CN218155663U - Shell and tube heat exchanger and unit

Info

Publication number: CN218155663U
Application number: CN202222227084.5U
Authority: CN
Inventors: 刘立现; 刘思凡
Original assignee: Shandong Youxin Energy Saving Technology Co ltd
Current assignee: Shandong Youxin Energy Saving Technology Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-12-27
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a shell and tube heat exchanger and unit, which belongs to the field of heat exchangers, and comprises a shell and end covers fixedly arranged at two ends of the shell, wherein a plurality of heat exchange tubes are fixedly arranged in the shell, two ends of the heat exchange tubes are communicated with the inside of the end covers, a water inlet is arranged at the top of the shell, a water outlet is arranged at the bottom of the shell, a filter screen is arranged in the water inlet, one of the end covers is provided with a liquid inlet and a liquid outlet at the top and the bottom respectively, and a baffle is fixedly arranged in the end cover; through the setting of filter screen, can filter the water that gets into the water inlet, reduce the impurity that gets into casing back aquatic to but the dirt that shells inner wall and heat exchange tube outer wall produced avoids influencing heat exchange efficiency, through the setting of clearance subassembly, can clear up the filter screen, reduces impurity and piles up the condition that causes the filter screen to block up on the filter screen, improves the filtration efficiency of filter screen.

Description

Shell and tube heat exchanger and unit

Technical Field

The utility model belongs to the technical field of the heat exchanger, concretely relates to shell and tube heat exchanger and unit.

Background

The shell-and-tube heat exchanger is also called a shell-and-tube heat exchanger. The dividing wall type heat exchanger is a dividing wall type heat exchanger which takes the wall surface of a tube bundle sealed in a shell as a heat transfer surface. The heat exchanger has simple structure, low cost, wider flow cross section and easy scale cleaning; but has low heat transfer coefficient and large occupied area. Can be made of various structural materials, can be used at high temperature and high pressure, and is the most widely applied type.

The shell-and-tube heat exchanger generally lets in water in the casing directly from the water inlet, because the aquatic generally contains impurity, long-term the back of using, leads to shells inner wall and heat transfer pipeline outer wall to produce the dirt easily, influences shell-and-tube heat exchanger's heat exchange efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shell and tube heat exchanger and unit to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a shell and tube heat exchanger and unit, includes casing and the end cover of fixed mounting at casing both ends, the inside fixed mounting of casing has a plurality of heat exchange tubes, the both ends and the inside end cover of heat exchange tube are linked together, the top of casing is provided with the water inlet, the bottom of casing is provided with the delivery port, install the filter screen in the delivery port, one of them the top and the bottom of end cover are provided with inlet and liquid outlet respectively, the inside fixed mounting of end cover has the baffle.

As a preferred embodiment, flanges are provided at both ends of the housing, and the end cap is fixedly mounted to the housing through the flanges.

In a preferred embodiment, a cleaning assembly is arranged inside the water outlet and above the filter screen.

As a preferred embodiment, the cleaning assembly comprises an impeller arranged in the water outlet, a connecting shaft fixedly arranged at the center of the impeller, and a cleaning brush fixedly arranged at one end of the connecting shaft.

In a preferred embodiment, the cleaning brush is a fur brush.

As a preferred embodiment, a bracket is fixedly installed on the inner wall of the water outlet, and the connecting shaft is rotatably installed in the bracket.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the shell-and-tube heat exchanger and the unit, water entering the water inlet can be filtered through the arrangement of the filter screen, impurities in the water entering the shell are reduced, so that dirt generated on the inner wall of the shell and the outer wall of the heat exchange tube can be prevented from affecting heat exchange efficiency, the filter screen can be cleaned through the arrangement of the cleaning assembly, the condition that the filter screen is blocked due to the fact that the impurities are accumulated on the filter screen is reduced, and the filtering efficiency of the filter screen is improved;

this shell and tube heat exchanger and unit, through the cooperation of impeller, connecting axle and cleaning brush, when rivers were through the delivery port, rivers can drive the impeller and rotate, made the impeller drive the cleaning brush rotation through the connecting axle, made the cleaning brush clean the filter screen surface.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is an enlarged view of the structure at a in fig. 2 of the present invention.

In the figure: 1. a housing; 2. an end cap; 3. a heat exchange tube; 4. a water inlet; 5. a water outlet; 6. filtering with a screen; 7. a liquid inlet; 8. a liquid outlet; 9. a partition plate; 10. a flange plate; 11. cleaning the assembly; 111. an impeller; 112. a connecting shaft; 113. cleaning a brush; 114. and (4) a bracket.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Please refer to fig. 1-3, the utility model provides a shell and tube heat exchanger and unit, including casing 1 and the end cover 2 of fixed mounting at casing 1 both ends, the inside fixed mounting of casing 1 has a plurality of heat exchange tubes 3, the both ends of heat exchange tube 3 are linked together with end cover 2 is inside, the top of casing 1 is provided with water inlet 4, the bottom of casing 1 is provided with delivery port 5, through the setting of water inlet 4 and delivery port 5, can carry water to carry and carry out the heat transfer in casing 1, install filter screen 6 in the water inlet 4, through the setting of filter screen 6, can filter the water that gets into water inlet 4, reduce the impurity that gets into the casing 1 back aquatic, thereby can the dirt that casing 1 inner wall and heat exchange tube 3 outer wall produced, avoid influencing heat exchange efficiency, the top and the bottom of one of them end cover 2 are provided with inlet 7 and liquid outlet 8 respectively, the inside fixed mounting of end cover 2 has baffle 9, through inlet 7, the setting of liquid outlet 8 and baffle 9, after heat exchange medium gets into end cover 2 from inlet 7, because the separation of baffle 9, make heat exchange medium flow into another end cover 2 from the heat exchange tube 3 of upper strata, then flow back to initial end cover 2 from 3 of lower floor, discharge from liquid outlet, realize the heat exchange liquid outlet 8, because of baffle 9.

Furthermore, flanges 10 are arranged at two ends of the shell 1, the end cover 2 is fixedly mounted with the shell 1 through the flanges 10, and the end cover 2 and the shell 1 can be mounted through the flanges 10.

Further, clearance subassembly 11 is installed to 5 inside tops that are located filter screen 6 of delivery port, through clearance subassembly 11's setting, can clear up filter screen 6, reduces impurity and piles up the condition that causes filter screen 6 to block up on filter screen 6, improves filter efficiency of filter screen 6.

Further, clearance subassembly 11 is including setting up impeller 111 in delivery port 5, fixed mounting at the connecting axle 112 of impeller 111 center and fixed mounting at the cleaning brush 113 of connecting axle 112 one end, and through impeller 111, connecting axle 112 and cleaning brush 113's cooperation, when rivers pass through delivery port 5, rivers can drive impeller 111 and rotate, makes impeller 111 drive cleaning brush 113 through connecting axle 112 and rotates, makes cleaning brush 113 clean the filter screen 6 surface.

Further, the cleaning brush 113 is a soft brush, and the damage of the cleaning brush 113 to the filter screen 6 can be reduced by the arrangement of the soft brush.

Further, a bracket 114 is fixedly installed on the inner wall of the water outlet 5, the connecting shaft 112 is rotatably installed in the bracket 114, and the connecting shaft 112 can be supported by the bracket 114.

The utility model discloses a theory of operation and use flow: at first through filter screen 6's setting, can filter the water that gets into water inlet 4, reduce the impurity that gets into casing 1 back aquatic, but the dirt that casing 1 inner wall and 3 outer walls of heat exchange tube produced, avoid influencing heat exchange efficiency, setting through clearance subassembly 11, can clear up filter screen 6, reduce the condition that impurity piles up to cause filter screen 6 to block up on filter screen 6, improve filter screen 6's filtration efficiency, through impeller 111, connecting axle 112 and clearance brush 113's cooperation, when rivers pass through delivery port 5, rivers can drive impeller 111 and rotate, make impeller 111 drive clearance brush 113 through connecting axle 112 and rotate, make clearance brush 113 clean filter screen 6 surface.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shell and tube heat exchanger and unit, includes casing (1) and end cover (2) of fixed mounting at casing (1) both ends, its characterized in that: the inside fixed mounting of casing (1) has a plurality of heat exchange tubes (3), the both ends and the inside end cover (2) of heat exchange tube (3) are linked together, the top of casing (1) is provided with water inlet (4), the bottom of casing (1) is provided with delivery port (5), install filter screen (6) in water inlet (4), one of them the top and the bottom of end cover (2) are provided with inlet (7) and liquid outlet (8) respectively, the inside fixed mounting of end cover (2) has baffle (9).

2. A shell and tube heat exchanger and assembly as claimed in claim 1, wherein: the novel energy-saving shell is characterized in that flange plates (10) are arranged at two ends of the shell (1), and the end covers (2) are fixedly mounted with the shell (1) through the flange plates (10).

3. A shell and tube heat exchanger and assembly as claimed in claim 1, wherein: the inside top that is located filter screen (6) of delivery port (5) is installed and is cleared up subassembly (11).

4. A shell and tube heat exchanger and assembly as claimed in claim 3, wherein: the cleaning assembly (11) comprises an impeller (111) arranged in the water outlet (5), a connecting shaft (112) fixedly installed at the center of the impeller (111) and a cleaning brush (113) fixedly installed at one end of the connecting shaft (112).

5. A shell and tube heat exchanger and unit of claim 4, characterized in that: the cleaning brush (113) is a soft brush.

6. A shell and tube heat exchanger and unit of claim 4, characterized in that: the inner wall of the water outlet (5) is fixedly provided with a support (114), and the connecting shaft (112) is rotatably arranged in the support (114).