CN203489538U

CN203489538U - Novel efficient flooded evaporator

Info

Publication number: CN203489538U
Application number: CN201320524739.3U
Authority: CN
Inventors: 刘顺; 徐峰; 罗雄
Original assignee: Mcquay Air Conditioning and Refrigeration Wuhan Co Ltd
Current assignee: Mcquay Air Conditioning and Refrigeration Wuhan Co Ltd
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2014-03-19
Anticipated expiration: 2023-08-27

Abstract

The utility model discloses a novel efficient flooded evaporator which comprises a shell. A distributor is arranged at the inner bottom of the shell and comprises two top inclined plates, sealing plates at two ends and a sealed space enclosed by the bottom of the shell, the bottom of the shell is connected with a feed pipe communicated with the sealed space, the top edges of the two inclined plates are connected to form an angle, liquid passing holes are uniformly distributed in the two inclined plates, and heat exchange tube nests are uniformly distributed on the upper portions of the two inclined plates. Refrigerants are more uniformly and efficiently distributed, heat exchange efficiency is improved, the utilization rate of the refrigerants is increased, so that the charge volume of the refrigerants is decreased, operating cost is reduced, the novel efficient flooded evaporator is compact in structure, the size of the evaporator is reduced, and manufacturing cost is reduced.

Description

A kind of Novel efficient flooded evaporator

Technical field

The utility model relates to Refrigeration Technique, refers to particularly a kind of Novel efficient flooded evaporator.

Background technology

Flooded evaporator is widely used in central air-conditioning unit, this kind of evaporimeter has compact conformation, heat transfer efficiency is high, the advantages such as heat exchange is stable, its operation principle is: cold-producing medium is walked shell side (monoshell journey), refrigerating medium is walked tube side (one way or multipass), and liquid refrigerant carries out heat exchange by heat exchange tube wall and liquid refrigerating medium and is evaporated to gaseous state, and whether the heat exchange of cold-producing medium and refrigerating medium fully directly affects the heat exchange property of unit.

The flooded evaporator with trapezoidal distributor generally adopting at present mainly contains following deficiency: 1) cold-producing medium distributed uniform degree is not ideal enough, has limited the raising of evaporimeter heat exchange efficiency; 2) the flow through pressure drop in distributor space of cold-producing medium strengthens, and causes energy loss, has increased operating cost; 3) cold-producing medium can not make full use of, and needs to increase the charging amount of refrigeration joint, causes the wasting of resources, has increased cost; 4) distributor in it takes up room greatly, simultaneously for guaranteeing that heat exchange amount need increase heat transmission equipment volume, has increased manufacturing cost.Therefore, the heat exchange property of optimization evaporimeter just seems particularly important to improve unit performance and to economize on resources.

Summary of the invention

The purpose of this utility model will provide a kind of Novel efficient flooded evaporator exactly, to realize the uniform high-efficiency of cold-producing medium, distributes, and improves the heat exchange property of refrigeration plant.

For achieving the above object, the technical solution adopted in the utility model is: a kind of Novel efficient flooded evaporator, comprise housing, described housing inner bottom part is provided with distributor, and described distributor is the shrouding by two, top swash plate, two ends, and the confined space that surrounds of described housing bottom, described housing bottom is connected with the feed pipe that leads to described confined space, the top of described two swash plates is along joining angulation, and on described two swash plates, is evenly equipped with liquid pass hole, the uniform heat exchange nest of tubes in top of described two swash plates.

Reasonable Arrangement distributor and heat exchange nest of tubes are passed through in this practicality, and by improving the structure of distributor, improve the heat exchange efficiency of evaporimeter; Fully take into account cold-producing medium heat exchange rule, the swash plate of two angulations of joining is set in dispenser top, that is: by dispenser top Cross section Design triangularity, and the liquid pass hole of uniform special pore size distribution and hole count on swash plate as required, this distributor separatory reliability is high, good uniformity, has realized even separatory, has significantly improved the heat exchange efficiency of evaporimeter, and it is more reasonable that cold-producing medium is distributed, increase the utilization rate of cold-producing medium, reduced the charging amount of cold-producing medium, thereby reduced operating cost; The utility model has been avoided the cold-producing medium leakage of splashing, and makes cold-producing medium little through the distributor pressure loss, has further reduced operating cost; The utility model is compared tradition and has been reduced equipment volume with the flooded evaporator of trapezoidal distributor, and structure is more compact, has reduced manufacturing cost.

Further, described dispenser top is by symmetrical tilting being formed by connecting of described swash plate of two same sizes, and described swash plate is rectangle.

Further, the heat exchanger tube of described heat exchange nest of tubes is staggered, and the center distance of adjacent heat exchange tubes equates, and the center distance of adjacent heat exchange tubes is greater than the diameter of heat exchanger tube.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is dispenser top cross section structure schematic diagram in Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail, is convenient to more clearly understand the utility model, but they do not form and limit the utility model.

As shown in Figure 1, a kind of Novel efficient flooded evaporator, comprise housing 1, described housing 1 inner bottom part is provided with distributor 2, described distributor 2 is by the measure-alike rectangle swash plate 3 in two, top, the shrouding of rear and front end, and the confined space that forms of described housing 1 bottom welding, described housing 1 bottom is connected with the feed pipe 4 that leads to described confined space, described two swash plates 3 are symmetrical tilting, the top of two swash plates 3 angulation of joining along long limit, that is: the triangle (as Fig. 2) on Jun Chengwu base, its cross section in length range, distributor 2 tops, and be evenly equipped with circular liquid pass hole on described two swash plates 3, the uniform heat exchange nest of tubes 5 in top of described two swash plates 3, the heat exchanger tube of described heat exchange nest of tubes 5 is staggered, the center distance of adjacent heat exchange tubes equates, that is: the cross section of heat exchanger tube is the arrangement of equilateral triangle shape, and the center distance of adjacent heat exchange tubes is greater than the diameter of heat exchanger tube, evaporimeter two ends tube sheet is fixed at heat exchanger tube two ends, centre is supported by gripper shoe, tube sheet and gripper shoe can be designed to the version matching with distributor 2 structures.

The course of work of the present utility model is as shown by the arrows in Figure 1: liquid refrigerant enters in distributor 2 from the feed pipe 4 of evaporator shell 1 bottom, cold-producing medium is interior uniform at this distributor 2, and flow out equably distributor by the liquid pass hole on the swash plate 3 of two, 2 top of distributor, enter the housing cavity 6 of evaporimeter, and then carry out heat exchange by the heat exchange nest of tubes 5 being arranged in gripper shoe with refrigerating medium.

Claims

1. a Novel efficient flooded evaporator, comprise housing (1), it is characterized in that: described housing (1) inner bottom part is provided with distributor (2), described distributor (2) is the shrouding by two swash plates in top (3), two ends, and the confined space surrounding bottom described housing (1), described housing (1) bottom is connected with the feed pipe (4) that leads to described confined space, the top of described two swash plates (3) is along joining angulation, and on described two swash plates (3), be evenly equipped with liquid pass hole, the uniform heat exchange nest of tubes in top (5) of described two swash plates (3).

2. a kind of Novel efficient flooded evaporator according to claim 1, is characterized in that: described distributor (2) top is by symmetrical tilting being formed by connecting of described swash plate (3) of two same sizes, and described swash plate (3) is rectangle.

3. a kind of Novel efficient flooded evaporator according to claim 1 and 2, it is characterized in that: the heat exchanger tube of described heat exchange nest of tubes (5) is staggered, the center distance of adjacent heat exchange tubes equates, and the center distance of adjacent heat exchange tubes is greater than the diameter of heat exchanger tube.