CN1045451A - The method and apparatus of notes, blocking refrigerant - Google Patents

Abstract

The method and apparatus of notes, blocking refrigerant is to be used for cold-producing medium is injected into Totally-enclosed type refrigeration equipment, blocks the method and apparatus of refrigerant inlet again.Use the present invention to Totally-enclosed type refrigeration equipment annotate, blocking refrigerant, easy and simple to handle reliable, improve the reliability of the shutoff mouth of pipe, in the process of weldering plugging mouth, although the mouth of pipe is in molten molten state, cold-producing medium does not leak, and do not produce pore, and equipment is also very simple.The available soldering of weldering plugging mouth reduces cost, and increases the benefit.

Description

The method and apparatus of notes, blocking refrigerant

" method and apparatus of notes, blocking refrigerant " is to be used for cold-producing medium is injected into Totally-enclosed type refrigeration equipment, blocks refrigerant inlet again, injects fluid into the invention that blocks the method and apparatus of inlet in the full hermetic container more in other words conj.or perhaps.

The method and apparatus of known notes, blocking refrigerant is: the inlet of Totally-enclosed type refrigeration equipment cold-producing medium is a copper pipe, the other end of copper pipe connects with valve, after Open valve injects an amount of cold-producing medium, valve-off, flat copper pipe somewhere folder again, unload lower valve after, with solder flux the weldering of copper pipe mouth is blocked, make cold-producing medium not reach the purpose of notes, blocking refrigerant from the mouth of pipe to external leakage.The shortcoming of this method is: after injecting cold-producing medium, pressure in the Totally-enclosed type refrigeration equipment is greater than the pressure in the external world, therefore before weldering plugging mouth, just require copper pipe is held very flat, the gas leakage or the phenomenon of leakage can not be arranged, otherwise the mouth of pipe is in molten molten state in the time of will blocking up owing to weldering, make the cold-producing medium can be to external leakage, produce minimum pore at mouth of pipe place, concerning producer and maintenance personal, just annotate, blocked up cold-producing medium, refrigeration plant is working properly, but the time one is long, cold-producing medium leaks more, refrigeration just reduces, and promptly makes troubles to the user, has influenced the reputation of manufacturer again.

The present invention is exactly for solving this difficulty, make Totally-enclosed type refrigeration equipment is being annotated, easy and simple to handle in the process of blocking refrigerant, improve the reliability of the shutoff mouth of pipe, the weldering plugging is made a slip of the tongue in the journey, although the mouth of pipe is in molten molten state, but cold-producing medium does not leak, do not produce pore, easy and simple to handle reliable, feature of the present invention is: pipe-expander is changed a social system, mouth of pipe expanding device push rod axis along pipe-expander drills through an aperture, refrigeration plant inlet copper pipe is clipped in the pipe-expander anchor clamps, withstands the mouth of pipe, in the mouth of pipe, rotate top with the push rod tip of the mouth of pipe expanding device of pipe-expander, make the horn mouth contact-making surface of spreading tight, no gap.The other end of pipe-expander push rod connects with valve, Open valve makes cold-producing medium be injected in the refrigeration plant by the aperture of the mouth of pipe expanding device push rod of pipe-expander, inject valve-off behind an amount of cold-producing medium, somewhere at copper pipe is flat with its folder, even there is a gas leak phenomenon also not serious, unload the mouth of pipe expanding device of pipe-expander then, the fastener of one section band tapering is followed closely into copper pipe mouth, because the effect of pipe-expander anchor clamps, nipped that section copper pipe is can spreading, thereby reach copper pipe and fastener closely cooperates, do not have a bit gap, the purpose of air tight liquid is welded into an integral body with solder flux with fastener and copper pipe again, unload the pipe-expander anchor clamps, just finished notes, stifled work.In nail fastener process, the pipe-expander anchor clamps also play fixedly copper pipe, do not make the effect that copper pipe is crooked and bear percussion power.The present invention will be by the following examples and accompanying drawing clearly explanation in addition.

Fig. 1 is the pipe-expander anchor clamps.

Fig. 2 is the mouth of pipe expanding device of pipe-expander, and the push rod axis has a through hole.

Fig. 3 is the schematic diagram that injects cold-producing medium with pipe-expander.

Fig. 4 is the schematic diagram with fastener plugging mouth.

Totally-enclosed type refrigeration equipment such as refrigerator, its inlet that injects cold-producing medium is a copper pipe.When injecting cold-producing medium, copper pipe is clamped with pipe-expander anchor clamps shown in Figure 1, mouth of pipe expanding device with pipe-expander shown in Figure 2 is stuck on the pipe-expander anchor clamps then, and rotation push rod A, with the top of push rod A the copper pipe mouth is risen into by trumpet type, make the top of push rod A and copper pipe horn mouth contact-making surface tight, very close to each other, the other end of push rod A connects with valve, Open valve, and cold-producing medium is annotated in the system cool equipment through the aperture B of push rod A shown in Figure 3, valve-off, at the D place of copper pipe C shown in Figure 3 copper pipe is pressed from both sides flatly, the slit had better not be arranged, unload the mouth of pipe expanding device of pipe-expander, in Fig. 4, fastener E that will the band tapering follows closely into along the copper pipe mouth, because the effect of pipe-expander anchor clamps, that section copper pipe in the pipe-expander anchor clamps is can spreading, nail fastener E combines closely copper pipe C and fastener E, do not have a bit gap, the mouth of pipe is blocked in weldering at last, makes copper pipe C become as a whole with fastener E, unload the pipe-expander anchor clamps, finish and block the leak free purpose of the mouth of pipe.

Use method and apparatus of the present invention, weldering plugging mouth can be used the WU weldering instead, reduces cost, and increases the benefit.

Claims (3)

1, be used to annotate, the method and apparatus of blocking refrigerant, it is characterized in that: form by pipe-expander and fastener, bore a through hole at the axis of pipe-expander push rod.

2, according to claim 1, it is characterized in that: fastener is followed closely into copper pipe, welds the plugging mouth again.

3, according to claim 1, it is characterized in that: after the mouth of pipe is blocked in weldering, unload the pipe-expander anchor clamps again.

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