CN201096461Y

CN201096461Y - Sewage water and surface water cold and heat power supply square shell tube heat exchanger

Info

Publication number: CN201096461Y
Application number: CNU200720117308XU
Authority: CN
Inventors: 吴荣华; 王筱华
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-30
Filing date: 2007-10-30
Publication date: 2008-08-06
Anticipated expiration: 2017-10-30

Abstract

Disclosed is a sewage and surface water cold and heat source square shell tube heat exchanger, which relates to a heat exchanger. The utility model aims to solve the problems that the plate-type heat exchanger disagrees with the unclean water condition and the cleaning and maintenance are difficult. The shell tube type heat exchanger itself has the inferior heat exchange performance compared with the plate-type heat exchanger, and has the problems of big inevitable investment and large occupied area under the more unfavorable condition of small temperature difference. A heat exchange tube of the utility model is connected between a left tube plate and a right tube plate, the square shell body is welded on the left tube plate and the right tube plate, a shell pass clapboard is connected between the inner wall of the square shell body and the left tube plate and the right tube plate, and the exchange tube is spilt into a plurality of groups to form multiple shell passes. A left seal head and a right seal head are respectively connected at the left side and the right side of the shell body through two flanges, and the seal head clapboard divides the heat exchange tube into multiple tube sides. The square shell tube heat exchanger is applied to the unclean water condition and is easy to be cleaned and maintained, and can effectively improve the heat exchange efficiency and maximally reduce the occupied area of the heat exchanger, as well as having advantages of compact structure and high heat exchange efficiency.

Description

Sewage and the square case tube heat exchanger of surface water Cooling and Heat Source

Technical field

The utility model relates to a kind of heat exchanger.

Background technology

Municipal sewage and surface water (water of river, lake and sea) are good low level, renewable, clean energy resource, and it is space heating and air-conditioning that development and use can be used as the heat pump Cooling and Heat Source, and promptly sewage or surface water heat pump heat supply and air-conditioning have the important energy saving and the value of environmental protection.The utilization of this energy (or sewage water heat pump system) generally is made up of two processes of extraction and conversion of heat energy, leaching process is to carry out heat exchange by heat transferring medium (normally clean water) and sewage or surface water, and conversion process is to enter source pump again by heat transferring medium to carry out the heat transmission.The leaching process of heat is the key problem in technology of system, and it has following three characteristics.(1) condition of water quality of non-cleaning.Sewage or surface water all contain suspension and solid particle, and its cyclic process is again an open type, the easy fouling of heat exchanger, and heat exchange efficiency is low, needs periodic maintenance, therefore needs heat exchanger structurally to implement easily to clean.(2) the little temperature difference, big flow, big heat exchange area.The water temperature of municipal sewage and surface water is not high, and the sensible heat temperature difference of extraction is also little, is the heat or the cold of satisfying the demand by quantity of circulating water.Generally, temperature drop or temperature rise are in 6 ℃, and the heat transfer temperature difference of heat exchanger then is no more than 5 ℃, and this just requires the heat exchange area of heat exchanger very big, cause the investment of required heat exchanger big, floor space is big.(3) the heat exchange operating mode of low temperature, low pressure.Sewage or surface water water temperature are between 4～40 ℃, and the pressure of heat exchanger two side liquids generally is no more than 6 atmospheric pressure, and this is favourable relatively one side.Above-mentioned three characteristics make utilizes existing heat exchanger all to have defective.Need the situation of high efficient heat exchanging though plate type heat exchanger is applicable to the little temperature difference, big flow, big heat exchange area, be unwell to the condition of water quality of non-cleaning, difficult clean and maintenance.Though the easy clean and maintenance of existing shell-and-tube heat exchanger, the heat exchange property of itself not as plate type heat exchanger, under more disadvantageous conditions such as the little temperature difference, must be invested greatly, floor space is big.Also there is relevant drawback in other heat exchange form.

The utility model content

Though the purpose of this utility model is to be applicable to that for solving plate type heat exchanger the little temperature difference, big flow, big heat exchange area need the situation of high efficient heat exchanging, are unwell to the condition of water quality of non-cleaning, difficult clean and maintenance.Though existing shell-and-tube heat exchanger is clean and maintenance easily, but the heat exchange property of itself is not as plate type heat exchanger, under more disadvantageous conditions such as the little temperature difference, must invest the problem big, that floor space is big, a kind of sewage and the square case tube heat exchanger of surface water Cooling and Heat Source are provided.The utility model is by heat exchanger tube 1, square casing 2, left side end socket 3, right end socket 4, shell side dividing plate 5, left side tube sheet 6, right tube sheet 7, heat transferring medium import 8, heat transferring medium outlet 9, sewage or surface-water inlet 10, sewage or surface water outlet 11, end socket dividing plate 12 and two ring flanges 13 are formed, heat exchanger tube 1 is connected between left tube sheet 6 and the right tube sheet 7, square casing 2 is welded on left tube sheet 6 and the right tube sheet 7, with heat exchanger tube 1 sealing, shell side dividing plate 5 is connected between the inwall and left tube sheet 6 and right tube sheet 7 of square casing 2, heat exchanger tube 1 is divided into many groups forms muitishell, have heat transferring medium through hole 14 on the shell side dividing plate 5, left side end socket 3 and right end socket 4 are connected the left and right sides of housing 2 respectively by two flanges 13, between left side tube sheet 6 and the left end socket 3, all be fixed with end socket dividing plate 12 between right tube sheet 7 and the right end socket 4, end socket dividing plate 12 is divided into the multitube journey with heat exchanger tube 1, quantity is corresponding with number of shell passes, heat transferring medium import 8 is fixed on the upper end of square casing 2, heat transferring medium outlet 9 is fixed on the lower end of square casing 2, sewage or surface-water inlet 10 are fixed on the lower end of left end socket 3, and sewage or surface water outlet 11 are fixed on the upper end of right end socket 4.The utility model is applicable to the condition of water quality of non-cleaning, and easily clean and maintenance can improve heat exchange efficiency effectively, has reduced the floor space of heat exchanger to greatest extent, the utlity model has compact conformation, advantage that heat exchange efficiency is high.

Description of drawings

Fig. 1 is the integrally-built vertical view of the utility model, and Fig. 2 is the A-A cutaway view of Fig. 1, and Fig. 3 is the B-B cutaway view of Fig. 1.

The specific embodiment

The specific embodiment one: (referring to the present embodiment of Fig. 1～Fig. 3) by heat exchanger tube 1, square casing 2, left side end socket 3, right end socket 4, shell side dividing plate 5, left side tube sheet 6, right tube sheet 7, heat transferring medium import 8, heat transferring medium outlet 9, sewage or surface-water inlet 10, sewage or surface water outlet 11, end socket dividing plate 12 and two ring flanges 13 are formed, heat exchanger tube 1 is connected between left tube sheet 6 and the right tube sheet 7, square casing 2 is welded on left tube sheet 6 and the right tube sheet 7, with heat exchanger tube 1 sealing, shell side dividing plate 5 is connected between the inwall and left tube sheet 6 and right tube sheet 7 of square casing 2, heat exchanger tube 1 is divided into many groups forms muitishell, have heat transferring medium through hole 14 on the shell side dividing plate 5, left side end socket 3 and right end socket 4 are connected the left and right sides of housing 2 respectively by two flanges 13, between left side tube sheet 6 and the left end socket 3, all be fixed with end socket dividing plate 12 between right tube sheet 7 and the right end socket 4, end socket dividing plate 12 is divided into the multitube journey with heat exchanger tube 1, quantity is corresponding with number of shell passes, heat transferring medium import 8 is fixed on the upper end of square casing 2, heat transferring medium outlet 9 is fixed on the lower end of square casing 2, sewage or surface-water inlet 10 are fixed on the lower end of left end socket 3, and sewage or surface water outlet 11 are fixed on the upper end of right end socket 4.It is low temperature, low pressure that the heat transfer process of present embodiment has an advantage, can be based on the easy characteristics of cleaning of shell-and-tube heat exchanger, the high voltage bearing characteristics of general cylindrical housings are removed, utilize square casing, heat exchanger tube is recombinated, to reduce the heat exchanger floor space to greatest extent, improve heat exchange efficiency as far as possible.

The specific embodiment two: the heat transferring medium through hole 14 on shell side dividing plate 5 of (referring to Fig. 2) present embodiment is opened on the left end of shell side dividing plate 5 self, and 14 of heat transferring medium through holes on the shell side dividing plate 5 adjacent with it are opened on the right-hand member of shell side dividing plate 5 self.Other composition is identical with the specific embodiment one with annexation.

Claims

1, a kind of sewage and the square case tube heat exchanger of surface water Cooling and Heat Source, it is by heat exchanger tube (1), square casing (2), left side end socket (3), right end socket (4), shell side dividing plate (5), left side tube sheet (6), right tube sheet (7), heat transferring medium import (8), heat transferring medium outlet (9), sewage or surface-water inlet (10), sewage or surface water outlet (11), end socket dividing plate (12) and two ring flanges (13) are formed, it is characterized in that heat exchanger tube (1) is connected between left tube sheet (6) and the right tube sheet (7), square casing (2) is welded on left tube sheet (6) and the right tube sheet (7), heat exchanger tube (1) is sealed, shell side dividing plate (5) is connected between the inwall and left tube sheet (6) and right tube sheet (7) of square casing (2), heat exchanger tube (1) is divided into many groups forms muitishell, have heat transferring medium through hole (14) on the shell side dividing plate (5), left side end socket (3) and right end socket (4) are connected the left and right sides of housing (2) respectively by two flanges (13), between left side tube sheet (6) and the left end socket (3), all be fixed with end socket dividing plate (12) between right tube sheet (7) and the right end socket (4), end socket dividing plate (12) is divided into the multitube journey with heat exchanger tube (1), quantity is corresponding with number of shell passes, heat transferring medium import (8) is fixed on the upper end of square casing (2), heat transferring medium outlet (9) is fixed on the lower end of square casing (2), sewage or surface-water inlet (10) are fixed on the lower end of left end socket (3), and sewage or surface water outlet (11) are fixed on the upper end of right end socket (4).

2, sewage according to claim 1 and the square case tube heat exchanger of surface water Cooling and Heat Source, it is characterized in that the heat transferring medium through hole (14) on the shell side dividing plate (5) opens on the left end of shell side dividing plate (5) self, the heat transferring medium through hole (14) on the shell side dividing plate (5) adjacent with it is then opened on the right-hand member of shell side dividing plate (5) self.