Two-way throttle valve and refrigeration system with throttle valve
A two-way throttling valve and orifice technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as high-frequency vibration, cavitation rupture, pipe wall pipe cavitation, etc., to reduce pressure difference, Prolong service life and optimize throttling noise effect
Active Publication Date: 2015-07-01
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
In this process, due to the decompression effect of the throttle spool, when the pressure difference between the front and rear of the spool reaches a certain value, cavitation may occur, the cavitation ruptures, impacts on the pipe wall, and friction with the pipe wall. Cause cavitation, high-frequency vibration, and noise problems on the pipe wall
Method used
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[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0027] figure 1 Shown is a schematic cross-sectional structure diagram of a two-way throttle valve in one of the embodiments of the present invention, figure 2 An exploded view of a two-way throttle valve. like figure 1 and figure 2 As shown, the two-way throttle valve includes a valve housing, a first valve seat 5, a second valve seat 13, a first valve core 7, a second valve core 11 and a third valve core 9, wherein the valve housing has a first end 17 and second end 18, and a valve cavity 19 penetrating from the first end 17 to the second end 18 is provided on the valve casing. In order to facilitate assembly and maintenance, the valve housing in this embodiment is preferably an assembled structure, which ...
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Disclosed are a two-way throttle valve and a refrigeration system with the throttle valve. The two-way throttle valve comprises a valve shell, a first valve seat, a second valve seat, a first valve element, a second valve element and a third valve element. The first valve seat is fixed to the position, close to a first end, inside a valve cavity, and a first sliding way is arranged on the first valve seat; the second valve seat is fixed to the position, close to a second end, in the valve cavity in a sealed manner, and a second sliding way is arranged on the second valve seat; the first valve element is arranged in the first sliding way in a sliding manner, and a first throttle hole is formed in the first valve element; the second valve element is arranged in the second sliding way in a sliding manner, and a second throttle hole is formed in the second valve element; and the third valve element is arranged at the position, between the first valve element and the second valve element, in the valve cavity, and a third throttle hole which extends in the axial direction of the valve shell is formed in the third valve element. According to the two-way throttle valve, the third valve element is arranged between the first valve element and the second valve element to form a double-stage throttling structure, the pressure difference of the valve element in each stage is reduced, the cavitation effect is avoided, and therefore the effects of lowering the throttling noise and prolonging the service life are achieved.
Description
technical field [0001] The invention relates to the refrigeration field, in particular to a two-way throttling valve and a refrigeration system having the same. Background technique [0002] The existing two-way throttle valve usually includes a tubular body, the first valve seat and the second valve seat installed in reverse symmetry are arranged in the body, and the first valve seat is equipped with a movable valve with an axial thin valve in the middle. There is a first valve core with a hole and three ribs on the outer circumference, and a movable second valve core with an axial thin hole in the middle and three ribs on the outer circumference is arranged in the second valve seat. When this kind of two-way throttling valve is used in an air conditioner, if it is a heat pump unit, the first spool and the second spool are used at the same time, and if it is a cooling-only unit, only the second spool is used. [0003] This kind of two-way throttle valve is a kind of orific...
Claims
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IPC IPC(8): F25B41/06F25B41/38
CPCF25B2341/06F25B41/30
Inventor 施正兴梁桂源苏波周剑波安杰魏书生
Owner GREE ELECTRIC APPLIANCES INC