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Ejector, absorber and absorber control method

A technology of ejector and absorber, applied in the field of HVAC, can solve the problems of large volume, limited gas-liquid contact specific surface area, small gas-liquid contact specific surface area, etc.

Inactive Publication Date: 2021-04-09
ENN SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, towers are mainly used in large-scale process equipment. Due to the limited specific surface area of ​​gas-liquid contact, the equipment is generally large in size. If the absorption heat is large, it is difficult to quickly remove it. Therefore, it can only be applied to occasions with small absorption heat.
[0003] In terms of refrigeration and heating, the absorber is the largest component in the absorption refrigeration system, and its heat exchange area accounts for about 40% of the total heat exchange area of ​​the unit. Its performance directly restricts the overall structure and performance of the refrigeration unit. One of the most important components in the system is currently realized by spraying, the gas-liquid contact specific surface area is small, and the absorption efficiency needs to be improved, and its performance directly restricts the overall structure and performance of the refrigeration unit

Method used

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  • Ejector, absorber and absorber control method
  • Ejector, absorber and absorber control method
  • Ejector, absorber and absorber control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 is the front view of the injector of embodiment 1; figure 2 It is a plan view of the injector of Example 1.

[0046] Such as figure 1 and figure 2As shown, the injector of this embodiment is arranged on the absorber, including: a housing, including an input end and an output end, and the input end of the housing is used to input low-pressure fluid; a nozzle, arranged inside the housing, and the nozzle includes an input end and the output end, the input end of the nozzle is used for inputting high-pressure fluid; a channel for delivering low-pressure fluid is formed between the nozzle and the housing. In general, high-pressure fluids are gases and low-pressure fluids are liquids. The low-pressure liquid enters the channel through the input end of the shell, and the high-pressure gas enters the nozzle through the input end of the nozzle, and then sprays out from the output end of the nozzle, enters the shell, mixes with the low-pressure liquid to form a gas...

Embodiment 2

[0057] Figure 4 It is a plan view of the absorber of Example 2.

[0058] Such as Figure 4 As shown, the absorber of this embodiment includes the injector of Embodiment 1, and also includes a casing; the injector is arranged in the casing.

[0059] Preferably there are at least two injectors; the output of the housing of one injector is opposite the output of the housing of the other injector. The gas-liquid mixture ejected by two oppositely arranged injectors collides again to further increase the atomization effect.

[0060] Further preferably, the expansion nozzles of the two opposite injectors are arranged oppositely, and the gas-liquid mixture collides to form a gas-liquid mixture rapidly. Since the gas-liquid mixture is sheared during the collision process, it is further atomized, and the atomized product is then along the The high-pressure flow in the horizontal pipe is continuously absorbed during the reverse flow process, and finally complete absorption is achieve...

Embodiment 3

[0068] Figure 7 is a flowchart of the absorber control method of the embodiment.

[0069] Such as Figure 7 As shown, the absorber control method of this embodiment is used to control the temperature inside the absorber in Example 2, including: detecting the temperature inside the shell of the absorber; judging the relationship between the temperature inside the shell and the preset temperature; if the shell If the internal temperature is higher than the preset temperature, increase the flow rate of the heat exchange medium in the heat exchange tube; if the flow rate of cold water increases to the first preset flow value and the temperature inside the shell is still higher than the preset temperature, then reduce the opening size of the nozzle output end ; If the temperature inside the shell is lower than the preset temperature, then reduce the flow rate of the heat exchange medium in the heat exchange tube; The size of the opening at the output of the large nozzle. When t...

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PUM

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Abstract

The invention provides an ejector, an absorber, and an absorber control method, wherein the ejector is disposed on the absorber, including a housing including an input end for inputting a low pressure fluid and an output end; a nozzle which is arranged in the shell, wherein the nozzle comprises an input end and an output end, and the input end of the nozzle is used for inputting a high-pressure fluid; a channel used for conveying the low-pressure fluid is formed between the nozzle and the shell. By improving the structure of the ejector of the absorber, the absorption form of the absorber is changed from a spraying form into a gas-liquid mixed atomization absorption form, so that the gas-liquid absorption contact area is increased, and the absorption efficiency of the absorber is further improved.

Description

technical field [0001] The invention relates to the technical field of heating and ventilation, in particular to an injector, an absorber and an absorber control method. Background technique [0002] Existing absorbers can be roughly divided into towers and other equipment. Towers mainly include spray towers, packed towers, plate towers, etc. There are also many other equipment, such as tubular wetted wall absorbers, spray absorbers, etc. Generally, towers are mainly used in large-scale process equipment. Due to the limited specific surface area of ​​gas-liquid contact, the equipment is generally large in size. If the absorption heat is large, it is difficult to quickly remove it. Therefore, it can only be applied to occasions with small absorption heat. [0003] In terms of refrigeration and heating, the absorber is the largest component in the absorption refrigeration system, and its heat exchange area accounts for about 40% of the total heat exchange area of ​​the unit. ...

Claims

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Application Information

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IPC IPC(8): B05B7/04B05B13/02F25B37/00F28B3/06
CPCB05B7/0433B05B13/0278F25B37/00F28B3/06
Inventor 朱晓军房金刚刘敏胜
Owner ENN SCI & TECH DEV