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Expansion valve components, one-way expansion valve and two-way circulation expansion valve

A technology for expansion valves and components, which is applied in the fields of expansion valve components, one-way expansion valves, two-way flow expansion valves, and mechanical automatic expansion valves. It can solve problems such as increasing energy consumption of air conditioners, increasing refrigerant resistance, and reducing service life. Effect of improving service life, reducing wear and improving life

Active Publication Date: 2013-01-16
浙江泽顺制冷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In reverse circulation, it can only flow through the orifice on the valve core, and the diameter of the valve cannot be changed, which increases unnecessary resistance when the refrigerant circulates and increases the energy consumption of the air conditioner.
And when reversed, the orifice is blocked by the movable part, and the valve core must be pushed open to flow, which causes the valve core to frequently impact under the force of the spring, reducing the service life of the valve

Method used

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  • Expansion valve components, one-way expansion valve and two-way circulation expansion valve
  • Expansion valve components, one-way expansion valve and two-way circulation expansion valve
  • Expansion valve components, one-way expansion valve and two-way circulation expansion valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, the expansion valve assembly includes a valve body 1a with an inlet 1a3 and an outlet 1a1, a valve seat 1b fixed in the valve body 1a, a valve core 1c and a spring 1d that makes the valve core 1c tend to move toward the valve seat 1b. The valve core 1c has a conical head 1c1, and the valve seat 1b is provided with a tapered hole matching the head 1c1 of the valve core 1c. Damping structure.

[0050] Specifically, as figure 2 , image 3 , Figure 4 As shown, the valve body 1a is straight cylindrical, the inlet 1a3 is located at the port of the straight cylindrical valve body 1a, the outlet 1a1 is opened on the side wall of the valve body 1a, and the valve core 1c also has a cylindrical shape connected with the head 1c1 of the valve core 1c. tail of 1c2. The head 1c1 of the valve core 1c has a front cylinder 1c8, a front throttling cone 1c9, a transition cone, a rear cylinder 1c10, and a rear throttling cone 1c11, and the taper hole of the...

Embodiment 2

[0054] The structure and principle of embodiment two are basically similar to embodiment one, as Figure 5 As shown, the difference from Embodiment 1 lies in the damping structure. The damping structure of Embodiment 2 includes a three-way passage 1c3 opened in the valve core 1c. One end of the three-way passage 1c3 can communicate with the hollow groove 1b1, and the other end can communicate with the hollow groove 1b1. The outlet 1a1 of the expansion valve assembly 1 is in communication, and another end can communicate with the inner cavity 1a2 of the valve body 1a. Compared with the first embodiment, the setting of the throttle hole 1b2 is cancelled.

Embodiment 3

[0056] The structure and principle of embodiment three are basically similar to embodiment two, as Image 6 As shown, the difference from Embodiment 2 lies in the damping structure. The damping structure of Embodiment 3 includes a two-way channel 1c4 opened in the valve core 1c. One end of the two-way channel 1c4 can communicate with the hollow groove 1b1, and the other One end can communicate with the inner chamber 1a2 of the valve body 1a. Compared with the second embodiment, the third embodiment cancels the transmission relationship between the interior of the valve core 1c and the outlet 1a1, and directly flows through the gap between the two.

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Abstract

The invention provides expansion valve components, a one-way expansion valve and a two-way circulation expansion valve, belonging to the technical field of refrigeration of variable frequency air conditioners. The invention solves the problem that the service life of a valve is shortened due to frequent abrasion of the conventional valve cores and the conventional vale bases. The two-way circulation expansion valve comprises a valve block which is provided with two parallel channels, wherein each channel is provided with an inlet end and an outlet end; an expansion valve component which is provided with a damping structure is connected to each outlet end; a bypass hole for communicating an outlet of the expansion valve component on one channel with the inlet end of the other channel is formed in the valve block; and a protection cover for preventing a medium from being leaked when flowing through the bypass hole and the outlet is welded at each outlet end. The two expansion valve components are arranged in parallel to ensure that a function of two-way circulation is realized; and the movement of a valve core is reduced by the damping structures, so that the service life of the expansion valve components is prolonged and the energy efficiency ratio of the expansion valve components is improved, thereby being of great significance for energy conservation and emission reduction.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and relates to a mechanical automatic expansion valve for refrigeration of frequency conversion air conditioners, in particular to an expansion valve assembly, a one-way expansion valve and a two-way circulation expansion valve. Background technique [0002] The compressor, condenser, expansion valve, and evaporator make up the refrigeration system. The expansion valve is an important part in the refrigeration system, generally installed between the condenser and the evaporator. The expansion valve can make the gas evaporated by the evaporator pressurized and liquefied into a high-temperature and high-pressure liquid refrigerant through the compressor, and throttling through its orifice to become a low-temperature and low-pressure mist liquid refrigerant, and then the refrigerant absorbs in the evaporator The heat achieves the cooling effect. The expansion valve controls the flow rate ...

Claims

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Application Information

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IPC IPC(8): F25B41/06F16K1/00F16K1/38F16K1/42F16K27/02F16K47/02F16K1/46F16K15/02F16K51/00B01D35/04
CPCF25B41/38F25B41/325F25B41/33
Inventor 金耿阮义兵
Owner 浙江泽顺制冷科技有限公司
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