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Refrigerating system for heating and ventilation engineering

A technology of refrigeration system and HVAC engineering, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of poor fitting of refrigeration systems, unsatisfactory thermal insulation and sound insulation effects, etc., and achieve tight fitting and good cooling effect. Effect

Inactive Publication Date: 2019-06-28
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a refrigeration system for HVAC engineering to solve the problems of poor fit and unsatisfactory thermal insulation and sound insulation effects during the use of the refrigeration system

Method used

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  • Refrigerating system for heating and ventilation engineering
  • Refrigerating system for heating and ventilation engineering
  • Refrigerating system for heating and ventilation engineering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Effect of metal-organic framework compounds on the performance of sound-absorbing coatings

[0038] 1. Prepare 5 groups of sound-absorbing coatings, the formula of each group of sound-absorbing coatings is: 32 parts of EVA resin, 6 parts of metal-organic framework compound solution, and 8 parts of polylactic acid. Mix the components thoroughly, ultrasonically oscillate at 22kHz for 10 minutes, and then microwave at 2450MHz for 10 minutes to obtain each group of sound-absorbing coatings. Pure EVA resin was used as a blank control group; no metal-organic framework compound solution was used, and 32 parts of EVA resin and 12 parts of polylactic acid were used as a positive control group.

[0039] Wherein, the preparation method of the polylactic acid is as follows: 1 part of nano silicon dioxide powder, 0.5 part of silane coupling agent, 0.3 part of SnCl 2 1. Dissolve 28 parts of lactide in 300 parts of toluene, mix well, heat to 165°C, and react for 16 hours. ...

Embodiment 2

[0047] Example 2: Effect of polylactic acid on the performance of sound-absorbing coatings

[0048] 1. In addition to the preparation of polylactic acid, 12 groups of sound-absorbing coatings were prepared by the method of Example 1, wherein the preparation of polylactic acid in each group of sound-absorbing coatings is shown in Table 3, and the values ​​in the table refer to the weight of the components number of copies. Use pure EVA resin as a blank control group; without adding polylactic acid, use 32 parts of EVA resin and 10 parts of metal-organic framework compound solution as a positive control group.

[0049] Table 3 Specific parameter display table

[0050] group

Nano silica

A silane coupling agent

SnCl 2

Lactide

toluene

group 1

1

/

0.3

28

300

group 2

1

0.5

0.3

28

300

group 3

1

0.3

0.3

28

300

group 4

1

0.6

0.3

28

300

Group 5

1

0.5

0....

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PUM

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Abstract

The invention discloses a refrigerating system for heating and ventilation engineering. The refrigerating system comprises condenser edge frames; two condenser edge frames are provided; end edge frameplates are arranged at the top ends and the bottom ends of the condenser edge frames; the end edge frame plates comprise first frame plates, second frame plates and third frame plates; two sides of the second frame plates are rotationally connected with the first frame plates and the third frame plates through rotary connecting pieces; U-shaped condensation pipes are fixedly mounted at the bottomends of the first frame plates, the second frame plates and the third frame plates; one ends of the U-shaped condensation pipes are connected with transfer-in hoses; and the other ends of the U-shaped condensation pipes are connected with transfer-out hoses. Through arrangement of the rotary connecting pieces, the end edge frame plates and the first frame plates, the problems of weak cooling effect and higher working noise caused by difficult bonding of the refrigerating system for the heating and ventilation engineering on the outer side of equipment due to the refrigerating system for the heating and ventilation engineering being a straight plate in use are solved.

Description

technical field [0001] The invention belongs to the technical field of refrigeration equipment, and in particular relates to a refrigeration system for heating and ventilation engineering. Background technique [0002] The refrigeration principle of a general refrigerator The function of the compressor is to compress the steam with a lower pressure into a steam with a higher pressure, so that the volume of the steam is reduced and the pressure is increased. The compressor sucks the lower-pressure working medium vapor from the evaporator, raises its pressure, and then sends it to the condenser, where it is condensed into a higher-pressure liquid, which becomes a higher-pressure liquid after being throttled by the throttle valve. After the low-pressure liquid is sent to the evaporator, it absorbs heat and evaporates in the evaporator to become a steam with a lower pressure, and then sends it to the inlet of the compressor to complete the refrigeration cycle. [0003] There ar...

Claims

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Application Information

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IPC IPC(8): F25B1/00F25B39/04G10K11/162
Inventor 齐学军吴春连
Owner XIHUA UNIV