CN213017863U

CN213017863U - Automatic switching type refrigeration valve

Info

Publication number: CN213017863U
Application number: CN202021106660.5U
Authority: CN
Inventors: 万胜亨; 石晓峰
Original assignee: Zhejiang Wandun Refrigeration Co ltd
Current assignee: Zhejiang Wandun Refrigeration Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-04-20
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses an automatic switching formula refrigeration valve, its technical scheme main points are: the valve comprises a valve body, a valve core and a control device, wherein three pipe fittings are arranged on the side surface of the valve body, two of the pipe fittings are input pipe fittings, and one pipe fitting is output pipe fitting; the valve core is provided with a valve rod and two valve holes, the valve core is completely embedded in the valve body, no gap is left on the side surface, the two valve holes are arranged up and down and respectively penetrate through the valve core from different directions, the openings of the two valve holes are positioned on the same side of the valve body, and the valve rod extends upwards to be connected with the control device; the control device comprises an electric telescopic rod and a temperature sensor, a rod body of the electric telescopic rod extends downwards to be connected with the valve rod, a space for the valve core to slide up and down is reserved after the valve body is embedded into the valve core, and the valve core slides up and down and is controlled by the control device. The utility model discloses can be according to the height of temperature in the equipment, through opening and shutting of controlling means automatic control flap, can also be through the fluidic flow of big or small control that control flap opened and shut.

Description

Automatic switching type refrigeration valve

Technical Field

The utility model relates to a valve field specifically is an automatic switching formula refrigeration valve.

Background

The refrigerating valve is a small-flow, hard-sealing and normally closed valve, and can be used for defrosting, flow direction control, on-off control and the like of a refrigerating system. Refrigeration valves are widely used in refrigerators, air conditioning refrigeration units and dehumidifiers.

The refrigeration valves commonly used at present are solenoid valves, which are industrial equipment controlled by electromagnetism and used in industrial control systems to adjust the direction, flow rate, speed and other parameters of media. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured.

However, the current refrigeration valves have the following disadvantages:

1. at present, a common refrigeration valve has higher requirements on medium cleanliness, a medium containing particles cannot be suitable, and fluid must be filtered before entering the valve. In addition, viscous media are not suitable for use, and the range of media viscosity for a particular product is relatively narrow.

2. The refrigeration valve adopting electromagnetic control usually has only two states of complete opening and closing, and the valve core can only be positioned at two extreme positions and can not control the flow, so the regulation precision is limited to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic switching formula refrigeration valve can be according to the height of temperature in the equipment, through opening and shutting of controlling means automatic control flap, can also be through the fluidic flow of the big or small control that control flap opened and shut, in addition, the utility model discloses application scope is wider, can be through the fluid that contains the particulate matter and the great fluid of viscosity, conveniently washs and maintains moreover.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

an automatic switching type refrigeration valve comprises a valve body, a valve core and a control device, wherein three pipe fittings are arranged on the side surface of the valve body, two of the pipe fittings are input pipe fittings, and one pipe fitting is output pipe fitting; the valve core is provided with a valve rod and two valve holes, the valve core is completely embedded in the valve body, no gap is left on the side surface, the two valve holes are arranged up and down and respectively penetrate through the valve core from different directions, the openings of the two valve holes are positioned on the same side of the valve body, and the valve rod extends upwards to be connected with the control device; the control device comprises an electric telescopic rod and a temperature sensor, a rod body of the electric telescopic rod extends downwards to be connected with the valve rod, a space for the valve core to slide up and down is reserved after the valve body is embedded into the valve core, and the valve core slides up and down and is controlled by the control device.

Compared with the prior art, the automatic switching refrigeration valve adopting the technical scheme has the following beneficial effects:

one, adopt the utility model discloses an automatic switch-over formula refrigeration valve can carry out real-time automatic control to the flow of opening and shutting and the feeding of valve according to the temperature, and simple structure easily realizes, and control accuracy is higher.

Two, adopt the utility model discloses an automatic switch-over formula refrigeration valve has the application range who compares traditional refrigeration valve bigger, except conventional fluid, can also be applicable to the great fluid of viscosity and granularity.

Thirdly, the utility model discloses simple structure is difficult for taking place to block up and damage, even take place the above condition moreover, also is convenient for maintain and change.

Preferably, the valve body is in a triangular prism shape, the corners are subjected to smoothing treatment, the three pipe fittings are respectively arranged on the three different side surfaces of the valve body, the valve core is also in a triangular prism shape, the corners are subjected to smoothing treatment, and the two valve holes respectively penetrate through the same surface from two different surfaces of the valve core. The triangular prism-shaped valve body is beneficial to the arrangement of a pipeline and a valve hole, and the smooth corners can also greatly reduce the corrosion caused by the fluid and enhance the sealing performance.

Preferably, the diameter of valve opening, the diameter of input pipe fitting and the diameter three of output pipe fitting are the same, are favorable to accurate control flow's size, can also reduce fluidic flow resistance, alleviate the leakage problem.

Preferably, the pipe openings of the input pipe and the output pipe are respectively provided with a flange for connecting other pipelines.

Preferably, the valve body lower extreme is equipped with the valve gap, and valve gap one end is connected through articulated mode with the valve body, and the valve gap other end passes through bolted connection with the valve body. The lower extreme sets up the valve gap and can directly takes out the case to carry out inspection, maintenance and maintenance to the valve.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the automatic switching refrigeration valve of the present invention.

Fig. 2 is a schematic structural diagram of the valve element in the present embodiment.

Fig. 3 is a schematic sectional view of the valve element along a-a in the present embodiment.

Fig. 4 is a schematic sectional view of the refrigeration valve in the present embodiment.

FIG. 5 is a schematic cross-sectional view of the inlet pipe and the outlet pipe of the present embodiment.

Reference numerals: 1. a valve body; 10. an input pipe fitting; 11. an output pipe; 110. a flange plate; 12. a valve cover; 2. a control device; 20. an electric telescopic rod; 21. a temperature sensor; 3. a valve core; 30. a valve stem; 31. Valve hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The automatic switching refrigeration valve shown in fig. 1 and 2 comprises a valve body 1, a control device 2 and a valve core 3, wherein three pipe fittings are arranged on the side surface of the valve body 1, two of the pipe fittings are input pipe fittings 10, one is output pipe fittings 11, and the end parts of the input pipe fittings 10 and the output pipe fittings 11 are respectively provided with a flange plate 110 for connecting with other pipelines.

Valve core 3 is the triangular prism shape, the rounding off is done to the corner, valve core 3 is equipped with valve rod 30, two valve opening 31, valve core 3 imbeds the inside and the side of valve body 1 completely and does not leave the gap, be located and leave certain space on the valve core 3 of the inside of valve body 1, be used for valve core 3 to slide from top to bottom in valve body 1, two valve opening 31 are the range from top to bottom, run through to same face (wherein two sides of triangular prism respectively have the opening of a valve opening 31 respectively, have the opening of two valve opening 31 on the third face) by valve core 3 adjacent two faces respectively, valve opening 31 open-ended shape and size are the same with input pipe fitting 10 and output pipe fitting 11.

The valve rod 30 is arranged at the upper end of the valve core 3, the valve rod 30 and the valve core 3 are integrated, and the valve rod 30 extends upwards to be connected with the control device 2.

As shown in fig. 4, the control device 2 comprises an electric telescopic rod 20 and a temperature sensor 21, wherein the electric telescopic rod 20 can receive an electric signal from the temperature sensor 21 and respond, and a rod body of the electric telescopic rod 20 extends downwards to be connected with a valve rod 330. After receiving the electric signal, the electric telescopic rod 20 makes an extending and contracting action, so as to control the valve core 3 to slide up and down in the valve body 1.

As shown in fig. 4 and 5, the control device 2 controls the valve core 3 to slide up and down in the valve body 1 to control the position of the valve hole 31, when the valve hole 31 at the upper part is aligned with the orifice of the output pipe 11, the orifice of one input pipe 10 is also aligned with the valve hole 31, and the input pipe 10, the valve hole 31 and the output pipe 11 form a passage, so that the fluid can smoothly pass through.

When the control device 2 aligns the lower valve opening 31 with the outlet pipe, the other inlet pipe 10, valve opening 31 and outlet pipe 11 form a passage.

The control device 2 can also control the alignment degree of the valve hole 31 and the nozzle, thereby regulating the flow rate of the inflow fluid.

When the valve is maintained, for example, impurities accumulated in the valve are cleaned, the valve cover 12 is only required to be unscrewed, the valve core 2 is taken out, then the surface of the valve core and the valve hole 31 are cleaned, and then the interior of the valve body 1 is cleaned.

The above description is a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principles of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an automatic switching formula refrigeration valve which characterized in that: the valve comprises a valve body (1), a valve core (3) and a control device (2), wherein two input pipe fittings (10) and an output pipe fitting (11) are arranged on the side surface of the valve body (1);

-the valve core (3) comprises a valve rod (30) and two valve holes (31), the valve core (3) is completely embedded in the valve body (1) without gaps on the side surface, the two valve holes (31) are arranged up and down and respectively penetrate through the valve core (3) from different directions, the valve holes (31) comprise inlets and outlets, the inlets of the two valve holes (31) are communicated with the input pipe (10), the outlets of the two valve holes (31) are communicated with the output pipe (11), and the valve rod (30) extends upwards and is connected with the control device (2);

-the control device (2) comprises an electric telescopic rod (20) and a temperature sensor (21), wherein a rod body of the electric telescopic rod (20) extends downwards to be connected with the valve rod (30);

after the valve core (3) is embedded into the valve body (1), a space for the valve core (3) to slide up and down is reserved in the valve body (1).

2. The automatic switching refrigeration valve of claim 1 wherein: the valve body (1) is in a triangular prism shape, two input pipe fittings (10) and one output pipe fitting (11) are arranged on different three side faces of the valve body (1) respectively, the valve core (3) is also in a triangular prism shape, and two valve holes (31) are respectively penetrated from two different faces of the valve core (3) to the same face.

3. The automatic switching refrigeration valve of claim 1 wherein: the diameter of the valve hole (31), the diameter of the input pipe fitting (10) and the diameter of the output pipe fitting (11) are all the same.

4. The automatic switching refrigeration valve of claim 1 wherein: the pipe orifices of the input pipe fitting (10) and the output pipe fitting (11) are respectively provided with a flange (110) for connecting other pipelines.

5. The automatic switching refrigeration valve of claim 1 wherein: the valve is characterized in that a valve cover (12) is arranged at the lower end of the valve body (1), one end of the valve cover (12) is connected with the valve body (1) in a hinged mode, and the other end of the valve cover (12) is connected with the valve body (1) through a bolt.