CN2798016Y

CN2798016Y - Coaxial type sleeve heat-exchanger

Info

Publication number: CN2798016Y
Application number: CN 200520061116
Authority: CN
Inventors: 舒增鳌
Original assignee: SHU ZENG'AO
Current assignee: SHU ZENG'AO
Priority date: 2005-07-01
Filing date: 2005-07-01
Publication date: 2006-07-19
Anticipated expiration: 2015-07-01

Abstract

The utility model relates to a coaxial type sleeve pipe heat exchanger. The utility model comprises heat transfer sleeve pipes which are composed of outer pipes [3] and inner pipes [5], and a cooling medium inlet [8], a cooling medium inlet outlet [2], a water inlet [1] and a water outlet [9] which are arranged on the heat transfer sleeve pipe, wherein the heat transfer sleeve pipes respectively form a straight bar shape, and a plurality of bar-shaped heat transfer sleeve pipes are arranged in parallel. The inner pipes [5] of the heat transfer sleeve pipes are communicated by a communicating pipe [6] of the inner pipe along the flow direction. Both ends of the outer pipe [3] are connected with collection short pipes [4]. The outer pipes [3] are communicated by an outer pipe communicating pipe [7] through the collection short pipes [4] along the flow direction. The utility model has simple operation of assembly process when the inner pipes and the outer pipes of the heat transfer sleeve pipes are penetrated, the assembly clearance easily achieves optimization, the flow capacity of the passage can be ensured, the heat exchange performance is improved and the installation space in the main machine is saved.

Description

The coaxial-type double-tube heat exchanger

Technical field

The utility model relates to a kind of heat exchanger, particularly a kind of coaxial-type double-tube heat exchanger, but its double as air conditioner refrigerating or other industrial condenser or evaporimeter.

Background technology

The coaxial-type double-tube heat exchanger is mainly used in fields such as chemical industry, refrigeration.Present employed coaxial-type double-tube heat exchanger contour structures is generally ring-type, adopts the four-start spiral pipe, is made up of bilayer or multilayer.Because the coaxial heat exchanger inner and outer pipes of ring-type all adopts the pipe of whole piece to make, poling assembling process complexity, waste time and energy, fit-up gap between the inner and outer pipes is restive, be adjusted to optimization, when small-bend radius bent pipe, easily make passage crimp, cause the refrigerant circulation path not optimize, circulating resistance increases, and finally influences heat exchanger effectiveness.In addition, because contour structures is a ring-type, under the prerequisite that guarantees enough heat exchange areas, whole heat exchanger volume is bigger, need take installing space bigger in the main frame.

Summary of the invention

The purpose of this utility model provides a kind of easy to make, compact conformation, coaxial-type double-tube heat exchanger that heat exchanger effectiveness is high.

The purpose of this utility model can realize by following technical measures: a kind of coaxial-type double-tube heat exchanger, comprise by outer tube, heat exchange sleeve that interior pipe is formed and the refrigerant on the heat exchange sleeve import and export, intake-outlet, heat exchange sleeve is a vertical bar shaped, be provided with some, longshore current is to being connected by interior pipe communicating pipe between the interior pipe of heat exchange sleeve, the outer tube two ends are connected to the set short tube, and longshore current is to being connected by outer tube communicating pipe through the set short tube between the outer tube.

Heat exchange sleeve is arranged in parallel, and forms single layer structure.

The interior pipe of heat exchange sleeve is a multi-start helical tubes, is preferably six helix tubes.

The advantage that the utlity model has: because heat exchange sleeve is a vertical bar shaped, the inner and outer pipes poling assembling process of heat exchange sleeve is simple to operate, and the fit-up gap is easy to reach optimization; Needn't bend pipe, thereby the helicla flute of interior pipe can not be out of shape because of crooked, kept original-shape, guaranteed the negotiability of passage, thereby can improve heat exchange property; Adopt inner and outer pipe communicating pipe respectively each bar inner and outer pipe of heat exchange sleeve to be communicated with, overall structure is more compact, is guaranteeing that it is less that volume is compared, thereby saved its installing space in main frame under enough heat exchange area prerequisites; Need not bend pipe mould, the length of heat exchanger and height can be made design as required, satisfy user's various installation requirements, and the rewritable design, and do not influence original technology.

Description of drawings

Fig. 1 is a structure chart of the present utility model.

The specific embodiment

With reference to Fig. 1, a kind of coaxial-type double-tube heat exchanger, comprise heat exchange sleeve and the import and export of the refrigerant on the heat exchange sleeve [8] and [2], intake-outlet [1] and [9] formed by outer tube [3], interior pipe [5], pipe [5] is six helix tubes wherein, heat exchange sleeve is a vertical bar shaped, be provided with some, be arranged in parallel, form single layer structure, the bar number of heat exchange sleeve is preferably even number, what show among Fig. 1 is 6, can guarantee that like this refrigerant is imported and exported [8] and [2], intake-outlet [1] and [9] are positioned at the same side, makes things convenient for installation.Longshore current is to being connected by interior pipe communicating pipe [6] between the interior pipe [5] of heat exchange sleeve, form water stream channel, outer tube [3] two ends are connected to set short tube [4], longshore current is to being connected by outer tube communicating pipe [7] through set short tube [4] between the outer tube [3], described refrigerant is imported and exported [8] and [2] and is connected on respectively on the set short tube [4], forms refrigerant passage.

When doing the condenser use, refrigerant enters set short tube [4] from refrigerant import [2], after [4] compile by the set short tube, enter the passage that forms between interior pipe [5] helicla flute and outer tube [3] inwall through distribution, flow through the down set short tube [4] of the other end, enter the passage of next bar heat exchange sleeve through outer tube communicating pipe [7], come out from refrigerant exit [8] at last; Water then enters interior pipe [5] by water inlet [9], through flowing to interior pipe [5] lining of next bar heat exchange sleeve interior pipe communicating pipe [6], comes out from delivery port [1] at last, carries out heat exchange.And when making evaporimeter and using, the flow direction of refrigerant is opposite when doing the condenser use.

Claims

1, a kind of coaxial-type double-tube heat exchanger, comprise heat exchange sleeve and the import and export of the refrigerant on the heat exchange sleeve [8] and [2], intake-outlet [1] and [9] formed by outer tube [3], interior pipe [5], it is characterized in that heat exchange sleeve is a vertical bar shaped, be provided with some, longshore current is to being connected by interior pipe communicating pipe [6] between the interior pipe [5] of heat exchange sleeve, outer tube [3] two ends are connected to set short tube [4], and longshore current is to being connected by outer tube communicating pipe [7] through set short tube [4] between the outer tube [3].

2, coaxial-type double-tube heat exchanger according to claim 1 is characterized in that heat exchange sleeve is arranged in parallel, and forms single layer structure.

3, coaxial-type double-tube heat exchanger according to claim 1, the interior pipe [5] that it is characterized in that heat exchange sleeve is six helix tubes.