An air conditioner refrigerant injection gun
A technology for injecting guns and refrigerants, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as injection volume deviation, labor cost, and refrigerant pressure easily affected by changes in different ambient temperatures.
Active Publication Date: 2021-09-24
安徽美博智能科技有限公司
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Problems solved by technology
[0002] For the normal operation of the air-conditioning and refrigeration system, the appropriateness of the refrigerant charging amount is a very important factor. In actual operation, in order to control the appropriate refrigerant charging amount, the commonly used method is the pressure observation charging method, that is Judging whether the amount of refrigerant charged reaches the ideal value by the pressure of the charging pipe, but the existing equipment often needs to manually observe the pressure value and then manually close the charging device to control the injection amount, resulting in labor costs and errors caused by manual judgment. At the same time, due to the low boiling point of the commonly used air-conditioning refrigerants, the pressure of the refrigerants is more easily affected by changes in different ambient temperatures, resulting in deviations in the amount of injection
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0036] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.
[0037] An air-conditioning refrigerant injection gun, such as figure 1 As shown, the gun chamber 1 is included, the gun handle 2 is fixed on the lower part of the gun chamber 1, the gun handle 2 is provided with an injection channel 21, the injection channel 21 is con...
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The invention discloses an air-conditioning refrigerant injection gun, which includes a gun chamber, a gun handle, a gun head, an interface, a valve core, and a trigger chamber. The valve core is provided with a hollow passage, and the trigger chamber is provided with a sealing bellows and a trigger bellows. The sealing bellows is sealed and filled with a preset amount of refrigerant. The top of the sealing bellows is fixed with a metal shrapnel, and the top of the trigger bellows is fixed with a metal gasket. The trigger bellows are connected through the detection pipe and the gun head, and the trigger bellows are deformed after being pressed. It can drive the metal gasket to contact the metal shrapnel to conduct the circuit, so that the hollow channel and the gun chamber can be interrupted through the filling control device to stop the injection. At this time, the pressure in the trigger bellows just reaches the preset pressure, and due to the sealing The bellows and the trigger bellows are both in the trigger chamber, and the ambient temperature is the same, so that the automatic control of the injection amount of the refrigerant can be realized and the control amount is not affected by the temperature.
Description
technical field [0001] The invention relates to an air-conditioning refrigerant charging device, in particular to an air-conditioning refrigerant injection gun. Background technique [0002] For the normal operation of the air-conditioning and refrigeration system, the appropriateness of the refrigerant charging amount is a very important factor. In actual operation, in order to control the appropriate refrigerant charging amount, the commonly used method is the pressure observation charging method, that is Judging whether the amount of refrigerant charged reaches the ideal value by the pressure of the charging pipe, but the existing equipment often needs to manually observe the pressure value and then manually close the charging device to control the injection amount, resulting in labor costs and errors caused by manual judgment. At the same time, due to the low boiling point of the commonly used air-conditioning refrigerants, the pressure of the refrigerants is more easily...
Claims
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IPC IPC(8): F25B45/00
CPCF25B45/00
Inventor 余方文
Owner 安徽美博智能科技有限公司