CN115370800A

CN115370800A - Two-way valve and electrical equipment

Info

Publication number: CN115370800A
Application number: CN202211061213.6A
Authority: CN
Inventors: 刘金喜; 李权威; 郭忠有; 陈一
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-11-22

Abstract

The invention provides a two-way valve and electrical equipment, relates to the technical field of valve bodies capable of controlling fluid flow, and solves the technical problems that a check valve assembly adopted by a low-temperature heating machine in the prior art has more pipe fittings and more welding points. The two-way valve comprises a valve seat and a valve core structure, wherein two valve cavities which are communicated with the valve seat are formed in the valve seat, one ends of the two valve cavities are communicated, and the two valve cavities are internally provided with the valve core structures which are opposite in conduction direction. The existing check valve component uses more pipe fittings and more welding spots; the two-way valve provided by the invention is characterized in that the two valve cavities are formed in the valve body, and then the valve core structure is assembled in the valve cavities. Therefore, the two-way valve provided by the invention has simpler structure and easier assembly, and can reduce the cost of raw materials. In addition, the on-off state of the channels at the two ends of the valve clack is changed through the compression condition of the elastic piece in the two-way valve, and compared with the electromagnetic two-way valve, the two-way valve is low in cost.

Description

Two-way valve and electrical equipment

Technical Field

The invention relates to the technical field of valve bodies capable of controlling fluid flow, in particular to a two-way valve and electrical equipment.

Background

With the rising price of materials, the reduction of the material consumption is inevitable in order to save cost.

The conventional low-temperature heating machine uses a large number of check valve assemblies which are communicated in two directions, and each check valve assembly is formed by combining two check valves. Taking a conventional 105kw low-temperature heating machine as an example, referring to fig. 1, a check valve assembly 1 thereof is illustrated. Referring to fig. 2, a schematic diagram of the one-way valve assembly of fig. 1 is shown. The check valve assembly is formed by welding 2 check valves, 5I-shaped pipes and 1Y-shaped tee, and the flow directions of the two check valves are opposite. In the forward direction, the liquid flows from the first connection pipe 101 (Y-branch) through the second connection pipe 102 along the arrow and into the third connection pipe 104 through the first check valve 103. When the flow is reversed, the liquid flows from the fourth connection pipe 105 through the second check valve 106 along the arrow, and finally flows out from the fifth connection pipe 107. The one-way valve component has a complex structure and a plurality of welding spots.

In addition, most of the two-way valves on the market are electromagnetically controlled, are expensive and are not suitable for being used in large quantities.

Disclosure of Invention

The invention aims to provide a two-way valve and electrical equipment, and solves the technical problems that in the prior art, a low-temperature heating machine adopts a plurality of one-way valve components and pipes and a plurality of welding points. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to realize the purpose, the invention provides the following technical scheme:

the invention provides a two-way valve which comprises a valve seat and a valve core structure, wherein two valve cavities penetrating through the valve seat are formed in the valve seat, one ends of the two valve cavities are communicated, the valve core structure is arranged in each of the two valve cavities, and the two valve core structures are opposite in conduction direction.

Further, the valve core structure comprises a valve clack, an elastic part and a fixing part, the fixing part is fixed in the valve cavity, a liquid flowing channel is formed between the fixing part and the valve cavity, the elastic part is connected with the valve clack and the fixing part, and the valve clack is abutted against the inner side wall of the valve seat under the elastic action of the elastic part so as to close the channels at two ends of the valve clack.

Furthermore, the fixed part comprises a fixed plate and a fixed shaft, the fixed plate is fixed on the inner side wall of the valve cavity, a space exists between the partial circumferential edge of the fixed plate and the valve cavity, one side of the fixed plate is connected with the fixed shaft, the fixed shaft is inserted into a matching hole in the valve clack and is movably connected with the valve clack, the elastic element is sleeved on the fixed shaft and the valve clack, and two ends of the elastic element are abutted against the fixed plate and the valve clack

Further, the valve clack includes an abutting plate and an insertion tube, one side of the abutting plate is connected with the insertion tube, the fixing shaft is inserted into the insertion tube, and the abutting plate is used for abutting against the inner side wall of the valve seat.

Further, an elastic layer for increasing the sealing property is arranged on the valve clack; or an elastic ring matched with the valve clack is arranged in the valve cavity.

Furthermore, one of the two opposite end faces of the valve seat is provided with an end face groove, the two valve cavities are communicated with the end face groove, the two valve cavities extend to the other end face of the valve seat, and the axes of the two valve cavities are parallel.

Furthermore, one end of each of the two valve cavities, which is communicated with each other, is provided with a joint pipe, and the other end of each of the two valve cavities, which is separated from each other, is provided with a joint pipe.

Further, each of the joint pipes is welded to the valve seat.

The invention provides electrical equipment which comprises the two-way valve.

Further, the electrical equipment is a low-temperature heating machine.

The invention provides a two-way valve which comprises a valve seat and a valve core structure, wherein two valve cavities penetrating through the valve seat are formed in the valve seat, one ends of the two valve cavities are communicated, the valve core structure is arranged in each of the two valve cavities, and the two valve core structures are opposite in conduction direction. The two-way valve is equivalent to a structure consisting of two one-way valves, a first connecting pipe (Y-shaped tee), a second connecting pipe and a fifth connecting pipe in the existing one-way valve component. The existing check valve component uses more pipe fittings and more welding spots; according to the two-way valve provided by the invention, the two valve cavities (which can be machined by a numerical control machine) are formed in the valve body, and then the valve core structure is assembled in the valve cavities. Therefore, the two-way valve provided by the invention has simpler structure and easier assembly, and can reduce the cost of raw materials.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a check valve assembly currently used in a 105kw cryogenic heater;

FIG. 2 is a schematic diagram of a check valve assembly currently used in a 105kw low temperature heating machine;

FIG. 3 is a schematic front view of a bi-directional valve provided by an embodiment of the present invention;

FIG. 4 is a left side cross-sectional schematic view of a bi-directional valve provided by an embodiment of the present invention.

FIG. 1-one-way valve assembly; 101-a first connection tube; 102-a second connecting tube; 103-a first one-way valve; 104-a third connecting tube; 105-a fourth connecting tube; 106-a second one-way valve; 107-fifth connecting tube; 2-valve seat; 201-valve cavity; 202-end face groove; 3-valve clack; 301-an abutment plate; 302-insertion of a cartridge; 4-an elastic member; 5, fixing a plate; 6, fixing a shaft; 7-joint pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 3-4, the present invention provides a two-way valve, which includes a valve seat 2 and a valve core structure, wherein two valve cavities 201 penetrating through the valve seat 2 are formed in the valve seat 2, one ends of the two valve cavities 201 are communicated, and the two valve cavities 201 are provided with the valve core structures, and the two valve core structures are opposite in communication direction. When liquid is fed from the side where the two valve cavities 201 are communicated, the liquid passes through one valve cavity 201 and the valve seat 2 because the conducting directions of the two valve core structures are opposite; when liquid is respectively introduced into the two valve cavities 201 from the end where the two valve cavities 201 are not communicated, the liquid passes through the valve seat 2 through the other valve cavity 201 because the other valve cavity 201 is in a communicated state.

The two-way valve of the present invention corresponds to a structure composed of two one-way valves in the one-way valve assembly 1, a first connection pipe 101 (Y-shaped three-way), a second connection pipe 102, and a fifth connection pipe 107. The check valve assembly uses many pipes, and welding spots are caused by welding between the first connection pipe 101 and the second connection pipe 102, between the second connection pipe 102 and the first check valve 103, between the second check valve 106 and the fifth connection pipe 107, and between the fifth connection pipe 7 and the first connection pipe 101. In the two-way valve provided by the invention, the two valve cavities 201 are formed in the valve body 2, the valve cavities 201 can be machined by a numerical control machine, and then the valve core structure is assembled into the valve cavities 201. Therefore, compared with a check valve component used in a 105kw low-temperature heater, the two-way valve provided by the invention has a simpler structure, is easier to assemble, and can reduce the cost on raw materials.

Regarding the valve core structure, the specific structure is as follows: referring to fig. 4, the valve core structure includes a valve flap 3, an elastic member 4 and a fixing portion, the fixing portion is fixed in the valve chamber 201, a fluid passage is formed between the fixing portion and the valve chamber 201, the elastic member 4 connects the valve flap 3 and the fixing portion, and the valve flap 3 abuts against the inner sidewall of the valve seat 2 under the elastic action of the elastic member 4 to close the passages at both ends of the valve flap 3. The two-way valve provided by the invention changes the on-off state of the channels at two ends of the valve clack 3 through the compression condition of the elastic part 4, and compared with an electromagnetic two-way valve, the two-way valve has low cost.

Referring to fig. 4, it can be seen that the two valve flaps 3 are installed in opposite directions, and the fluid conducting state is described in detail below with reference to fig. 4: valve clack 3 in the left side valve pocket 201 is located the below of fixed part and elastic component 4, valve clack 3 in the right side valve pocket 201 is located the top of fixed part and elastic component 4, two valve pockets 201 are linked together at the lower terminal surface of disk seat 1, when liquid from the lower extreme feed liquor of disk seat 1, liquid in the left side valve pocket 201 strikes valve clack 3, make left side valve clack 3 still with the inside wall seal fit of left side valve clack 3, and liquid in the right side valve pocket 201 strikes valve clack 3, overcome the elastic force of elastic component 4, promote valve clack 3 and upwards remove, make valve clack 3 open, liquid flows to the fixed part through the clearance between valve clack 3 and the valve pocket 201, because form the liquid flow passageway between fixed part and the valve pocket 201, liquid flows out disk seat 2 through the liquid flow passageway. If during the both ends feed liquor that liquid does not communicate from valve pocket 201, liquid in the valve pocket 201 of right side strikes valve clack 3, make right side valve clack 3 still with the inside wall sealing fit of right side valve clack 3, and liquid in the valve pocket 201 of left side strikes valve clack 3, overcome the spring action of elastic component 4, promote valve clack 3 downstream, make valve clack 3 open, liquid flows to the fixed part through the clearance between valve clack 3 and the valve pocket 201, because form the flowing liquid passageway between fixed part and the valve pocket 201, liquid flows out disk seat 2 through the flowing liquid passageway.

Regarding the fixing part, referring to fig. 4, the fixing part includes a fixing plate 5 and a fixing shaft 6, the fixing plate 5 is fixed on the inner side wall of the valve chamber 201, and a space is formed between a part of the circumferential edge of the fixing plate 5 and the valve chamber 201, the fixing plate 5 and the inner side wall of the valve chamber 201 are preferably welded, one side of the fixing plate 5 is connected with the fixing shaft 6, the fixing shaft 6 is inserted into a matching hole on the valve flap 3, and the fixing shaft 6 is movably connected with the valve flap 3, the elastic member 4 is sleeved on the fixing shaft 6 and the valve flap 3, and two ends of the elastic member 4 are abutted against the fixing plate 5 and the valve flap 3. Referring to fig. 4, the fixing plate 5 is located in the left valve cavity 201, and a space is formed between the left side of the fixing plate 5 and the valve cavity 201, so that a fluid passage is formed between the fixing part and the valve cavity. The elastic element 4 is a spring, and the fixed shaft 6 is sleeved with the elastic element 4.

Regarding the valve flap 3, the structure is as follows: referring to fig. 4, the valve flap 3 includes an abutting plate 301 and an insertion cylinder 302, one side of the abutting plate 301 is connected to the insertion cylinder 302, the fixing shaft 6 is inserted into the insertion cylinder 302, and the abutting plate 301 is configured to abut on an inner sidewall of the valve seat 2. The direction of movement of the valve flap 3 can be guided by inserting the fixed shaft 6 into the insertion cylinder 302. The insertion cylinder 302 and the fixed shaft 6 are fitted over the elastic member 4, and both ends of the elastic member 4 are pressed between the abutting plate 301 and the fixed plate 5.

Fig. 4 illustrates that the fixed part is provided with an insertion cylinder 302 for inserting the fixed shaft 6 into the valve clack 3 to form a guide structure; of course, it is also possible to provide the valve flap 3 with a guide shaft which is inserted into a fitting cylinder on the fixing portion.

Preferably, an elastic layer for increasing the sealing property is arranged on the valve flap 3; or, an elastic ring matched with the valve clack 3 is arranged in the valve cavity 201 to improve the sealing performance of the valve clack 3 in a non-conduction state.

Regarding the valve cavity 201, one of two opposite end surfaces of the valve seat 2 is provided with an end surface groove 202, the two valve cavities 201 are communicated with the end surface groove 202, the two valve cavities 201 extend to the other end surface of the valve seat 2, and the axes of the two valve cavities 201 are parallel. Referring to fig. 4, the position of the two valve chambers 201 on the valve seat 1 can be seen. Of course, the axes of the two valve chambers 201 are not limited to only diameters, and the ends of the two valve chambers 201 that do not communicate are not limited to being on the same end face of the valve seat 2.

One side of the end surface groove 202 is provided with a joint pipe 7, one end of the two separated valve cavities 201 is respectively provided with the joint pipe 7, and each joint pipe 7 is connected with the valve seat 2 in a welding mode. Referring to fig. 4, the connector pipes 7 are illustrated, and three connector pipes 7 are welded with the valve seat 2 to form a 'two-way valve' structure. With respect to the joint pipe 7 on the side of the end surface groove 202, referring to fig. 4, the end of the joint pipe 7 connected to the valve seat 2 is formed with a flare structure in the form of an annular connecting plate which is welded to the valve seat 2.

An electrical device comprising the improved two-way valve of the present invention. The electrical equipment may be a low temperature heater. The two-way valve comprises a valve seat 2 and a valve core structure, two valve cavities 201 penetrating through the valve seat 2 are formed in the valve seat 2, one ends of the two valve cavities 201 are communicated, and the two valve cavities 201 are internally provided with the valve core structures and the two valve core structures are opposite in conduction direction. When liquid is fed from one side where the two valve cavities 201 are communicated, the liquid passes through the valve seat 2 through one valve cavity 201 due to the fact that the conducting directions of the two valve core structures are opposite; when liquid is respectively introduced into the two valve cavities 201 from the ends where the two valve cavities 201 are not communicated, the other valve cavity 201 is in a communicated state, so that the liquid passes through the valve seat 2 through the other valve cavity 201. The improved two-way valve has a simpler structure, is easier to assemble, and can reduce the cost of raw materials.

One end of each of the two valve cavities 201 is communicated with an end surface groove 202 on the valve seat 2, one side of the end surface groove 202 is provided with a joint pipe 7, the other end of each of the two valve cavities 201 is provided with the joint pipe 7, and each joint pipe 7 is welded with the valve seat 2. Referring to fig. 4, the connector pipes 7 are illustrated, and three connector pipes 7 are welded with the valve seat 2 to form a 'two-way valve' structure.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A two-way valve, comprising a valve seat (2) and a valve core structure, wherein,

two valve cavities (201) penetrating through the valve seat (2) are formed in the valve seat (2), one ends of the two valve cavities (201) are communicated, the valve core structures are arranged in the two valve cavities (201), and the conducting directions of the two valve core structures are opposite.

2. The two-way valve according to claim 1, wherein the valve core structure comprises a valve flap (3), an elastic member (4) and a fixing portion, the fixing portion is fixed in the valve cavity (201) and a fluid passage is formed between the fixing portion and the valve cavity (201), the elastic member (4) connects the valve flap (3) and the fixing portion, and the valve flap (3) abuts against the inner side wall of the valve seat (2) under the elastic action of the elastic member (4) to close the passage at two ends of the valve flap (3).

3. The two-way valve according to claim 2, wherein the fixing portion comprises a fixing plate (5) and a fixing shaft (6), the fixing plate (5) is fixed on the inner side wall of the valve cavity (201), a space is formed between part of the circumferential edge of the fixing plate (5) and the valve cavity (201), one side of the fixing plate (5) is connected with the fixing shaft (6), the fixing shaft (6) is inserted into a matching hole in the valve flap (3), the fixing shaft (6) is movably connected with the valve flap (3), the elastic member (4) is sleeved on the fixing shaft (6) and the valve flap (3), and two ends of the elastic member (4) are abutted against the fixing plate (5) and the valve flap (3).

4. A bi-directional valve according to claim 3, characterized in that the flap (3) comprises an abutment plate (301) and an insertion barrel (302), one side of the abutment plate (301) being connected to the insertion barrel (302), the fixed shaft (6) being inserted into the insertion barrel (302), the abutment plate (301) being intended to abut on the inner side wall of the valve seat (2).

5. A two-way valve according to claim 2, wherein the flap (3) is provided with an elastic layer for increasing the sealing; or an elastic ring matched with the valve clack (3) is arranged in the valve cavity (201).

6. A two-way valve according to any one of claims 1-5, wherein a face groove (202) is provided on one of the opposite end faces of the valve seat (2), both valve chambers (201) communicate with the face groove (202), both valve chambers (201) extend to the other end face of the valve seat (2) and the axes of both valve chambers (201) are parallel.

7. The two-way valve according to any one of claims 1 to 5, wherein a joint pipe (7) is arranged at one end of the two valve cavities (201) which are communicated with each other, and joint pipes (7) are respectively arranged at the other ends of the two valve cavities (201) which are separated from each other.

8. A two-way valve according to claim 7, wherein each of the connector pipes (7) is welded to the valve seat (2).

9. An electrical appliance comprising a two-way valve according to any one of claims 1 to 8.

10. The bi-directional valve of claim 9, wherein the electrical device is a low temperature heater.