Disclosure of Invention
The invention aims to provide an electromagnetic three-way valve and a method for realizing synchronous heating and water heating, synchronous refrigeration and ice water making in a refrigeration system by using the electromagnetic three-way valve, and therefore, the invention adopts the following technical scheme:
the electromagnetic three-way valve is characterized by comprising a valve body with a valve cavity, wherein the valve body is provided with a first connecting pipe, a second connecting pipe and a third connecting pipe;
the valve also comprises a sliding block, wherein the sliding block conducts the third connecting pipe and the valve cavity at one working position, and separates the third connecting pipe and the valve cavity at the other working position.
The first connecting pipe and the second connecting pipe are always communicated through the valve cavity.
The electromagnetic three-way valve further comprises a valve seat, the third connecting pipe is arranged on the valve seat, and the sliding block moves on the valve seat to change the connection and disconnection between the third connecting pipe and the valve cavity.
The first connecting pipe and the second connecting pipe are arranged side by side, and the third connecting pipe is arranged opposite to the first connecting pipe and the second connecting pipe.
The invention provides a refrigeration system, which comprises a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a throttling element and an electromagnetic three-way valve, wherein the electromagnetic three-way valve adopts the electromagnetic three-way valve,
the second connecting pipe is connected with the output end of the compressor, the first connecting pipe is connected with the first heat exchanger, and the third connecting pipe is connected with the second heat exchanger.
And the refrigerant flowing through the first heat exchanger and the second heat exchanger is converged, then passes through the throttling element and the third heat exchanger and is connected with the input end of the compressor.
The invention also provides another refrigerating system which comprises a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a throttling element and an electromagnetic three-way valve, wherein the electromagnetic three-way valve adopts the electromagnetic three-way valve,
the second connecting pipe is connected with the output end of the compressor through the throttling element and the third heat exchanger, the first connecting pipe is connected with the first heat exchanger, and the third connecting pipe is connected with the second heat exchanger.
And the refrigerant flowing through the first heat exchanger and the second heat exchanger is converged and then is connected with the input end of the compressor.
The electromagnetic three-way valve provided by the invention can realize the multi-purpose flow dividing function of a refrigerant in the system, so that two condensers or two evaporators in the system are connected in parallel, thereby realizing different functions, when the electromagnetic three-way valve is powered off, one heat exchanger is closed, the system realizes refrigeration or heating circulation, when the electromagnetic three-way valve is powered on, the first heat exchanger and the second heat exchanger are both opened, the functions of synchronizing heating and water heating, refrigeration and ice water heating and the like are realized, and the purpose of one machine for multiple purposes is realized.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. For ease of understanding and simplicity of description, the following description will be made in conjunction with the electromagnetic three-way valve and its main valve.
Referring to fig. 1 and fig. 2, fig. 1 is a structural schematic diagram of a first working state of an electromagnetic three-way valve provided by the present invention, and fig. 2 is a structural schematic diagram of a second working state of the electromagnetic three-way valve provided by the present invention.
As shown in fig. 1, a main valve 100 of the electromagnetic three-way valve includes a valve body 101 having a valve cavity, the valve body 101 is formed in a hollow cylindrical shape, and end caps 102 are disposed at both ends of the valve body 101 to be hermetically fixed, respectively, so that the valve body 101 forms a sealed cavity. A first connecting pipe 103 and a second connecting pipe 104 are arranged on the upper side (based on fig. 1) of the valve body 101, and the two connecting pipes are arranged side by side; two through holes with flanges can be processed on the top of the valve body 101, and then the first connecting pipe 103 and the second connecting pipe 104 are respectively fixed in the through holes by welding. Thus, the first connection pipe 103 and the second connection pipe 104 are always in a conduction state through the cavity of the valve body 101.
Here, the terms of orientation, upper, lower, left and right are defined with reference to the drawings shown in the drawings of the specification only for the convenience of understanding and presentation and should not limit the scope of protection of the present application, and are consistent with the following description and are not repeated.
On the valve body 101 opposite to the first connecting pipe 103 and the second connecting pipe 104, a third connecting pipe 105 is provided, and in order to realize conduction or non-conduction of the third connecting pipe 105, a valve seat 107 is provided at the bottom of the valve body 101, the valve seat 107 has a planar sliding surface 1071, and a slider 108 can slide left and right on the sliding surface 1071 through the lower surface thereof.
The sliding block 108 is substantially bowl-shaped, and when in the working state of fig. 1, the sliding block 108 is buckled above the third connecting pipe 105 through the inner cavity of the bowl-shaped sliding block, so that the third connecting pipe 105 is separated from the valve cavity of the valve body 101; when in the working state of fig. 2, the slide block 108 moves to the right side, so that the third connecting pipe 105 is communicated with the valve cavity of the valve body 101.
The valve body is further provided with a piston connecting rod assembly comprising two pistons 109 arranged symmetrically and a connecting rod 110 connecting the two pistons 109 and fixed on the slider 108, so that when the pistons 109 move to the right, the connecting rod 110 is pushed and the slider 108 is pushed to slide on the sliding surface 1071 of the valve seat.
The movement of the slider 108 is realized by powering on or powering off an external electromagnetic coil, and a pilot valve structure may also be adopted, that is, the slider is realized by controlling the pilot valve by the electromagnetic coil, which is not described herein again.
Referring to fig. 3 and 4, fig. 3 is a schematic diagram of a first operating state of the refrigeration system according to the first embodiment of the present invention, and fig. 4 is a schematic diagram of a second operating state of the refrigeration system according to the first embodiment of the present invention.
As shown in fig. 3, the second connection pipe 104 of the three-way solenoid valve is connected to the output end of the compressor, the first connection pipe 103 is connected to the first heat exchanger 22, the third connection pipe 105 is connected to the second heat exchanger 22, and the first heat exchanger 22 and the second heat exchanger 23 are throttled by the throttling element 24 after the flow paths are merged, flow through the third heat exchanger 25, and then return to the input end of the compressor.
When the solenoid is de-energized, the slider 108 is positioned on the left side as viewed in fig. 3, and separates the third adapter tube 105 from the valve chamber of the valve body. At this time, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 21 enters the valve cavity of the valve body 101 through the second connection pipe 104, and since the third connection pipe 105 is covered by the slider 108 at this time, the refrigerant returns to the compressor 21 from the first connection pipe 103 through the first heat exchanger 21, the throttling element 24 and the third heat exchanger 25, thereby forming a circuit.
As shown in fig. 4, when the electromagnetic coil is energized, the slider 108 moves to the right side shown in fig. 4, so that the third connecting pipe 105 and the valve chamber of the valve body 101 are in a conducting state, at this time, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 21 enters the valve chamber of the valve body 101 through the second connecting pipe 104 and is divided into two branches, wherein the first branch passes through the first connecting pipe 103 and the first heat exchanger 22, the second branch passes through the third connecting pipe 105 and the second heat exchanger 23, and after the two branches are converged, the refrigerant passes through the throttling element 24 and the third heat exchanger 25 and returns to the compressor 21, thereby forming a loop. In this cycle, the first heat exchanger 22 and the second heat exchanger 23 simultaneously function as condensers for performing different functions, i.e. heating and water heating, respectively, and the third heat exchanger 25 functions as an evaporator.
Referring to fig. 5 and 6, fig. 5 is a schematic diagram of a first operation state of a refrigeration system according to a second embodiment of the present invention, and fig. 6 is a schematic diagram of a second operation state of the refrigeration system according to the second embodiment of the present invention.
As shown in fig. 5, the second connection pipe 104 of the three-way solenoid valve is connected to the output end of the compressor 21 through the throttling element 24 and the third heat exchanger 25, the first connection pipe 103 is connected to the first heat exchanger 22, the third connection pipe 105 is connected to the second heat exchanger 22, and the flow paths of the first heat exchanger 22 and the second heat exchanger 23 are merged and then returned to the input end of the compressor 21.
When the electromagnetic coil is de-energized, as shown in fig. 5, the slider 108 is located on the left side of the drawing, and at this time, the slider 108 covers the third connecting pipe 105 to separate the third connecting pipe 105 from the valve cavity of the valve body, and at this time, the flow direction of the refrigerant is as follows: the high-temperature and high-pressure gas output by the compressor 21 is condensed by the third heat exchanger 25, throttled and depressurized by the throttling element 24, enters the main valve chamber from the second connecting pipe 104 of the electromagnetic three-way valve, flows into the first heat exchanger 22 from the first connecting pipe 103, and then returns to the compressor 21.
When the electromagnetic coil is energized, as shown in fig. 6, the slider 108 moves to the right side of the drawing to connect the third connection pipe 105 with the valve chamber of the main valve, and the flow direction of the refrigerant at this time is: the high-temperature and high-pressure gas output by the compressor 21 passes through the third heat exchanger 25, is throttled and depressurized by the throttling element 24, enters the valve cavity of the main valve from the second connecting pipe 104 of the electromagnetic three-way valve, is divided into two branches at this time, one branch flows through the first heat exchanger 22 from the first connecting pipe 103, the other branch flows through the second heat exchanger 23 from the third connecting pipe 105, and the two branches are converged and then return to the compressor 21 to form a loop. In this cycle, the first heat exchanger 22 and the second heat exchanger 23 simultaneously function as evaporators for refrigeration and ice water production, respectively, and the third heat exchanger 25 functions as a condenser.
The electromagnetic three-way valve and the main valve thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.