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Evaporator

A technology for evaporators and evaporating tubes, applied in evaporators/condensers, refrigeration components, refrigerators, etc., can solve problems such as poor reliability, and achieve the effects of high torsional rigidity, shortened frosting time, and easy lamination

Active Publication Date: 2013-04-24
SIFANG TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is: in order to overcome the above deficiencies, provide a technical scheme of a lever-linked shutter evaporator that can be tightly closed without freezing the residual water of the louver blades at low temperature, and solve the problem of multiple groups of evaporation in large-scale food low-temperature freezing devices. The problem of poor reliability of automatic alternate water flushing and frosting

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] A lever-operated shutter evaporator (see figure 1 , figure 2 , image 3 ), including an evaporator 1 composed of an evaporating tube 2, fins 3 on the evaporating tube 2, a liquid supply tube 4 connected to the evaporating tube 2, and an air return tube 5. A water collection tank 6 and a drain outlet 7 are arranged below the evaporator 1 and feet 8, frosting water pipe 9 and top cover plate 10 are arranged above the evaporator 1, windshields 11 are arranged on both sides of the evaporator 1, louvers 12 installed on the windshields 11, and fixed water baffles are arranged above the louvers 13. The shutters 12 on both sides are driven to open and close by the linkage mechanism 14. The linkage mechanism 14 is composed of the control rod 15, the first pull rod 16, the lever 17, the second pull rod 18, the third pull rod 19 and the linkage rod 20. Each fulcrum is connected by a living hinge structure, and the linkage mechanism 14 is fixedly connected to the mounting plate...

Embodiment 2

[0032] The difference from Embodiment 1 is that the blades 22 of the louver 12 are welded together by four bent Z-shaped thin metal strips 31 and L-shaped thin metal strips 24 to form a thin-walled hollow square tube extending the two wings. blades (see Figure 7 ), the two wings rotate along the center line of the rotating shaft 26, so that the shutter 12 can be effectively closed. When the shutter 12 was closed, a two-way windshield closing opening was formed at the wing edge lap joint 32 (see Figure 8 ), the ventilation volume is small after closing. Because the overlapping surfaces of the wing edges are small, the frost water splashed on the blades has no problem of being adsorbed and staying in the overlapping gaps. Even if there is local ice at the overlapping joints, because the frozen surfaces are small and easy to pull apart, it will not affect Normal opening of shutters.

Embodiment 3

[0034] The difference with embodiment 1 or 2 is that there is a first sealing ring 33 in the support hole 30 of the polytetrafluoroethylene end plate 27 (see Figure 9 ), the sealing ring 33 prevents the remaining water from frosting in the gap between the joint surface of the polytetrafluoroethylene end plate 27 and the windshield 11 from entering the support hole 30 and freezing. There is a polytetrafluoroethylene head 34 to close the counterbore in the screw 29 that connects the polytetrafluoroethylene end plate 27 and the windshield 11. Frost water freezing problem.

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Abstract

The invention discloses a lever linkage shutter evaporator, comprising an evaporator composed of an evaporating pipe, a fin arranged on the evaporating pipe, and a feed pipe and an air return pipe connected with the evaporating pipe, wherein a water collecting groove, a drainage outlet and a support leg are arranged below the evaporator, a defrosting water pipe, a top cap plate are arranged abovethe evaporator, wind shields are arranged at two sides of the evaporator, shutters as well as linkage rods, pull rods and levers which are used for pushing and pulling the opening and closing actionsof the shutters are arranged on the wind shields, and a fixed baffle board is arranged above the shutters; the blades of the shutters are welded by a metal sheet strip with a Z-shaped section and a metal sheet strip with an L-shaped section, and are formed by extending thin-wall hollow square pipes at two wings, and teflon end plates are arranged between the blades and the wind shields. The evaporator provided by the invention has the main advantages that the blades of the shutters are strong in torsional rigidity, easy to laminate, and not frozen, an automatic water-washed frost program of the evaporator can orderly operate, the defrosting water flow is large, the defrosting time is shortened, and the operating efficiency and refrigerating capacity of the evaporator are improved.

Description

technical field [0001] The invention relates to an evaporator for refrigeration equipment, in particular to an evaporator with lever linkage shutters. Background technique [0002] In the existing lever linkage louver evaporator, the rotating shaft of the louver blades and the end faces of the blades at the rotating shaft are often frozen on the supporting plate of the rotating shaft due to the low-temperature freezing of residual water due to frosting, which causes the automatic water frosting program of the evaporator to fail to operate normally. . [0003] In the existing lever-linked louver evaporator, the torsional stiffness of the louver blades is small, and the torsional moment for closing the louvers cannot be effectively transmitted along the length direction of the blades, the louvers are not closed tightly, and the ventilation phenomenon is serious. In order to prevent frosting water droplets from leaking and freezing with the wind, the amount of frosting water h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B39/02
Inventor 钱洪
Owner SIFANG TECH GRP CO LTD
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