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Two-phase distributor for falling film evaporator

A falling film evaporator and distributor technology, applied in evaporators/condensers, refrigeration components, refrigerators, etc., can solve the problems of complex structure of two-phase distributors, high oil return efficiency, and reduced charge volume, etc., to achieve The structure is simple, the service life is extended, and the effect of reducing impact

Active Publication Date: 2017-10-20
江苏必领能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the heat transfer part of the refrigeration system, the design of the evaporator is one of the most critical parts that affect the performance of the unit. Among them, the falling film evaporator is widely used. Its advantages are not only high heat transfer performance, but also can greatly reduce the charge. And the oil return efficiency is high, the disadvantage is that the structure of the two-phase distributor is complicated and expensive

Method used

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  • Two-phase distributor for falling film evaporator
  • Two-phase distributor for falling film evaporator
  • Two-phase distributor for falling film evaporator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1, such as Figure 1-3 As shown, the liquid inlet chamber 20 is located in the middle of the large chamber 10, and the liquid equalization chambers 30 are symmetrically distributed on both sides thereof. The liquid inlet chamber 20 is composed of a liquid inlet top plate 21, a liquid inlet bottom plate 22, two A distribution plate 23 and two side plates 13, the top plate 11 and the bottom plate 12 of the large chamber 10 are parallel, the distribution plate 23 is perpendicular to the bottom plate 12, the partition plate 31 is connected to the top plate 11 and the distribution plate 23 are all vertical, and the partition plates 31 are parallel to each other. The liquid inlet chamber 20 is located in the middle of the large chamber 10, and the large chamber is longitudinally divided into a liquid inlet chamber 20 and areas on both sides of the liquid inlet chamber by two parallel distribution plates 23, and the two sides are respectively passed through multiple T...

Embodiment 2

[0026] Example 2, such as Figure 4 As shown, the partition plate 31 is perpendicular to the top plate, but not perpendicular to the distribution plate 23 , and an acute angle smaller than 45° is formed between the two partition plates 31 forming a uniform liquid chamber 30 . Different from Embodiment 1, the partition plates are not parallel to each other, and the distance between the two partition plates 31 of a uniform liquid chamber 30 gradually decreases from the end of the distribution plate 23 to the end of the side plate.

Embodiment 3

[0027] Example 3, such as Figure 5 As shown, the liquid inlet top plate 21 and the liquid inlet bottom plate 22 of the liquid inlet chamber 20 are parallel to each other, the liquid uniform plate 33 of the liquid uniform chamber is parallel to the liquid inlet top plate, and the liquid baffle plate 32 faces It extends obliquely downward and forms an acute angle less than 45° with the liquid uniform plate 33 , and the distribution plate 23 is perpendicular to the bottom plate 12 . The difference from Embodiment 1 is that the liquid baffle plate 32 is inclined, so that it can act as a stopper for the refrigerant in the horizontal and vertical directions. Similarly, the partition plates in this embodiment can be arranged in parallel to each other. , can also form a certain angle. Wherein, the partition plate 31 is perpendicular to the bottom plate 12 and the distribution plate 23, and the partition plates 31 are parallel to each other; or the partition plate 31 is perpendicular...

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Abstract

The invention relates to a two-phase distributor for a falling film evaporator. The two-phase distributor comprises a large chamber which is of a closed hollow structure composed of a top plate, a base plate and side plates, and the large chamber comprises a liquid inlet chamber and a plurality of liquid mixing chambers; the liquid inlet chamber is of the closed hollow structure composed of a liquid inlet top plate, a liquid inlet base plate, a distribution plate and the side plates, and the liquid inlet top plate is provided with a liquid inlet; each liquid mixing chamber is of the closed hollow structure composed of a partition plate, a liquid baffle, a liquid mixing plate, the distribution plate and the side plates, and the top plate is formed by connecting the liquid inlet top plate and the liquid baffle; the base plate is formed by connecting the liquid inlet base plate and the liquid mixing plate, and both sides of the distribution plate are connected to the side plates separately; both sides of the partition plate are connected to the distribution plate and the side plates separately, and the distribution plate of each liquid mixing chamber is provided with at least one distribution hole; and the liquid mixing plate is provided with a plurality of liquid mixing holes distributed uniformly. The two-phase distributor provided by the invention has the characteristics of simple structure and uniform distribution.

Description

technical field [0001] The invention relates to a distributor, in particular to a two-phase distributor for a falling film evaporator. Background technique [0002] The usual vapor compression refrigeration unit includes at least four basic components: compressor, evaporator, condenser and expansion throttling device. As the heat transfer part of the refrigeration system, the design of the evaporator is one of the most critical parts that affect the performance of the unit. Among them, the falling film evaporator is widely used. Its advantages are not only high heat transfer performance, but also can greatly reduce the charge. And the oil return efficiency is high, and the disadvantage is that the structure of the two-phase distributor is complicated and expensive. Contents of the invention [0003] In order to overcome the above defects, the present invention provides a two-phase distributor for a falling film evaporator, which is a single-layer distribution, which has t...

Claims

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Application Information

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IPC IPC(8): F25B39/02
CPCF25B39/022F25B39/028F25B2339/021
Inventor 刘斌
Owner 江苏必领能源科技有限公司
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