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Flooded evaporator

A flooded evaporator, horizontal technology, applied in evaporator/condenser, refrigeration and liquefaction, refrigeration components, etc., can solve the problems of increased shell diameter, increased pressure loss, high processing cost, etc., to promote Effects of heat exchange, reduced pressure loss, and easy processing

Active Publication Date: 2015-08-19
MCQUAY AIR CONDITIONING & REFRIGERATION WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Enlarging the shell diameter or adding superheating pipes will greatly increase the cost of the evaporator, and the improper structure and position of the liquid blocking device will easily lead to increased pressure loss in the shell, high processing costs and difficult installation.

Method used

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0020] Figure 1-3 A full-liquid evaporator shown includes a cylindrical shell 1 arranged horizontally, a tube plate 7 arranged at both ends of the shell 1, a variable-diameter suction pipe 6 arranged on the top of the shell 1 and passing through the shell wall, A liquid refrigerant inlet pipe 2 is provided at the bottom of the shell 1 and penetrates the shell wall. The tube plate 7 is provided with a mounting hole 8. The shell 1 and the tube plates 7 at both ends are connected by flanges to form an evaporator cavity. The shell 1 is provided with a heat exchange tube bundle 4 at the bottom and the outlet end of the suction tube 6 is connected with the inlet end of the steam engine. The shell 1 is horizontally provided with a perforated plate air equalization device 5, the perforated plate The air equalization device 5 includes a horizontal plate 5.1...

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Abstract

The invention discloses a flooded evaporator and belongs to the technical field of refrigerating systems. The flooded evaporator comprises a tubular shell horizontally arranged, tube plates disposed at two ends of the tubular shell, a suction tube disposed at the top of the tubular shell and penetrating the wall of the tubular shell, and a liquid coolant inlet tube disposed at the bottom of the tubular shell and penetrating its wall. A heat exchange tube bundle is disposed in the lower portion of the inside of the tubular shell. A perforated-plate gas equalizer is horizontally disposed in the upper portion of the inside of the tubular shell and comprises a horizontal plate and two arc plates. The bottom ends of the arc plates are perpendicularly fixed to two ends of the horizontal plate. The horizontal plate is horizontally connected to the inner wall of the tubular shell. The arc ends of the arc plates are connected to the upper wall of the tubular shell, forming a closed semi-cylinder; the horizontal plate is provided with a plurality of through holes; a liquid-equalizing plate is horizontally disposed below the heat exchange tube bundle. The flooded evaporator is simple and compact in structure, easy to process, convenient to mount, and greatly promotive to the stability of the refrigerating systems.

Description

Technical field [0001] The invention relates to the technical field of refrigeration systems, in particular to a flooded evaporator. Background technique [0002] The flooded evaporator is the core device used with centrifugal compressor or screw compressor in the refrigeration system, but the existing flooded evaporator, especially the flooded evaporator with small shell diameter, has the following defects : The refrigerant entering the evaporator through the throttling device maintains a certain liquid level, so that the evaporator heat exchange tube is immersed in the liquid refrigerant, and the liquid refrigerant absorbs heat and evaporates into a gaseous refrigerant into the compressor. At this time, the speed of the liquid refrigerant entering the evaporator from the liquid inlet tube is relatively high, so that the liquid refrigerant has a more obvious effect of scouring and heat exchange on the heat exchange tube near the liquid inlet, resulting in uneven heat exchange. ...

Claims

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Application Information

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IPC IPC(8): F25B39/02
CPCF25B39/02F25B2339/0242
Inventor 程嫚徐峰周杰郭丛波马新
Owner MCQUAY AIR CONDITIONING & REFRIGERATION WUHAN