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Pore plate throttling device

A technology of throttling device and orifice plate, applied in the direction of fluid circulation arrangement, refrigeration components, refrigerators, etc., can solve problems such as poor flow regulation performance, and achieve the guarantee of performance and regulation ability, flow increase, and throttling area increase. Effect

Active Publication Date: 2013-08-28
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor flow regulation performance existing in the existing orifice plate throttling device, the purpose of the present invention is to provide an orifice plate throttling device that can automatically adjust the flow rate according to the change of system pressure, so as to ensure different operating conditions and different The liquid supply to the evaporator under load matches the evaporation load, thus ensuring the performance and regulation ability of the unit

Method used

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  • Pore plate throttling device
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Experimental program
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Embodiment 1

[0020] Such as figure 1 As shown, the orifice throttling device is mainly composed of a casing 7, an orifice 4, a valve core 2 and a spring 5, wherein the casing 7 is cylindrical, and the orifice 4 is arranged in the casing 7 and fits with the casing 7 in a clearance. The orifice plate 4 is thus axially slidable relative to the housing 7 . In the middle of the orifice plate 4 is provided a through hole 4a through which fluid passes, and the inner wall surface of the through hole 4a is a tapered surface. Preferably, the diameter of the two ends of the through hole 4a is larger and the diameter of the middle is smaller.

[0021] The spring 5 is located on the side of the orifice plate 4 close to the evaporator (ie figure 1 The right side of the middle), one end of the spring 5 is connected to the orifice plate 4, and the other end is fixedly connected to the shell 7 through the annular bottom plate 6. When the load of the system changes, it is adapted by the movement of the o...

Embodiment 2

[0026] Such as figure 2 As shown, the difference from Embodiment 1 is that the area of ​​the end surface of the valve core head 2b in this embodiment is greater than the cross-sectional area of ​​the through hole 4a, so that when the orifice plate 4 changes relative to the valve core head 2b as the system pressure changes When sliding in the axial direction, the fluid flow rate passing through the through hole 4a can also be adjusted, so as to achieve the purpose of automatically adjusting the flow rate.

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Abstract

The invention discloses a pore plate throttling device which comprises a housing and a pore arranged in the housing and provided with a through hole, wherein the pore plate can axially slide relative to the housing, the housing at two sides of the pore plate is internally respectively provided with an elastic telescopic part and a valve plug, one end of the elastic telescopic part is connected with the pore plate, the other end of the elastic telescopic part is fixedly connected with the housing; and the valve plug is fixedly connected with the housing and used for regulating the flow of fluid passing through the through hole when the pore plate slides relative to the housing. The pore plate throttling device provided by the invention can ensure that liquid supply quantity of an evaporator is matched with an evaporation load under different working conditions and loads according to a change automatic regulating flow of system pressures before and behind the pore plate, thus the performance and the regulating capacity of a unit are improved.

Description

technical field [0001] The invention relates to a throttling device of an air conditioner, in particular to an orifice throttling device. Background technique [0002] At present, the throttling devices of air conditioners mainly include float valves, electronic expansion valves and orifice throttling devices. Compared with float valves and electronic expansion valves, the structure of orifice throttling devices is very simple and does not require external signals to adjust , the flow regulation is stable, and the price is cheap. The existing orifice throttling device is mainly composed of an outer shell and two orifice plates inside the outer shell. Although the orifice throttling device can be automatically adjusted within a certain range, its flow adjustment performance is poor, and it is difficult to cope with variable working conditions and variable conditions. Poor load capacity. Contents of the invention [0003] In order to solve the problem of poor flow regulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B41/06
Inventor 李宏波
Owner GREE ELECTRIC APPLIANCES INC