Water inlet valve and plate heat exchange waterway system with same

Abstract

The utility model belongs to the technical field of valves, and discloses a water inlet valve and a plate heat exchange waterway system with the water inlet valve, a first flow channel used for being connected with a water replenishing valve, a second flow channel used for leading in cold water and a sixth flow channel are arranged in a valve body of the water inlet valve; the first flow channel is communicated with the sixth flow channel, and the sixth flow channel is communicated with the third flow channel; a mounting cavity for mounting a water flow sensor is formed in an intersection area of the first flow channel, the third flow channel and the sixth flow channel; and an arc-shaped flow channel for communicating the first flow channel with the third flow channel is formed between the outer wall of the mounting cavity and the inner wall of the valve body. The water inlet valve is compact in structure, the layout of a medium flow channel is optimized, and operation of the water flow sensor cannot be affected when the water replenishing valve replenishes water.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and more specifically, relates to a water inlet valve and a plate water path changing system equipped with the same. Background Art

[0002] The bypass channel in the existing plastic plate water inlet valve is relatively complex inside the valve body, and the valve body structure is not compact enough. For example, Chinese patent document CN207333824U discloses a front-insertion plastic plate water inlet valve, the valve body is provided with a water inlet at the first end of the main channel, the valve body is provided with a water pump interface and a water replenishment valve interface, the water replenishment valve interface is connected to the main channel through the water replenishment inlet, a water replenishment valve for controlling the on-off of the water replenishment inlet is installed on the water replenishment valve interface, the water pump interface is located at the front side of the valve body and the axial direction is perpendicular to the axial direction of the main channel, the valve body is provided with a water replenishment channel connecting the water pump interface with the water replenishment valve cavity, the valve body is made of plastic, the water replenishment channel includes a first water replenishment channel parallel to the water pump interface, a second water replenishment channel perpendicular to the water pump interface and connecting the first water replenishment channel and the water pump interface, and a water replenishment connecting hole connecting the water replenishment valve cavity with the first water replenishment channel, the water inlet valve takes the water inlet as the front, and the water pump interface is at the front side of the water inlet, that is, a water pump front-insertion structure. When the water replenishment channel of this type of water inlet valve replenishes water into the water pump structure, it will affect the water flow sensor, and the valve body structure is a rectangular structure. The valve body protrudes from the valve body at external parts such as the water flow sensor installation port, water inlet, water pump interface, and water replenishment valve interface, and the structural layout is not compact enough. Utility Model Content

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide a water inlet valve and a plate water path changing system equipped therewith, mainly to solve the problem that the existing water inlet valve will affect the water flow sensor when replenishing water.

[0004] To achieve the above-mentioned purpose, according to one aspect of the utility model, there is provided a water inlet valve, including a valve body, wherein a first flow channel, a third flow channel and a sixth flow channel are provided in the valve body; the first flow channel is connected to the sixth flow channel, and the sixth flow channel is connected to the third flow channel; an installation cavity for installing a water flow sensor is provided in the intersection area of ​​the first flow channel, the third flow channel and the sixth flow channel; an arc flow channel for connecting the first flow channel and the third flow channel is formed between the outer wall of the installation cavity and the inner wall of the valve body.

[0005] Furthermore, it also includes a fifth flow channel for connecting to a heating device, and a ramp flow channel is provided outside the valve body, and the ramp flow channel connects the first flow channel and the fifth flow channel.

[0006] Furthermore, the slope flow channel has a first opening and a second opening that are connected to each other, a medium flow channel is formed between the first opening and the second opening, the first opening is located on the side wall of the first flow channel, and the second opening is located on the side wall of the fifth flow channel.

[0007] Furthermore, the first opening and / or the second opening is wedge-shaped or elliptical.

[0008] Furthermore, it also includes a second flow channel for connecting to a water pump, and the second flow channel is directly connected to the first flow channel.

[0009] Furthermore, it also includes a fourth flow channel for heat exchange, and the fourth flow channel includes a first connecting port, and the first connecting port is directly connected to the installation cavity.

[0010] Furthermore, the fifth flow channel includes a second connecting port, and the openings of the first connecting port and the second connecting port are oriented in the same direction.

[0011] Furthermore, the third flow channel is communicated with the installation cavity.

[0012] Furthermore, the valve body is integrally formed of plastic.

[0013] According to another aspect of the present invention, a plate heat exchanger water circuit system is also disclosed, which includes a water outlet valve and a water inlet valve as described in any of the preceding items, and a plate heat exchanger connected between the water outlet valve and the water inlet valve, the fourth flow channel and the fifth flow channel are respectively connected to the plate heat exchanger, the first flow channel is connected to a water replenishment valve, the second flow channel is connected to a circulating water pump, and a water flow sensor is installed in the installation cavity.

[0014] The above technical solution conceived by the utility model has the following advantages compared with the prior art:

[0015] The utility model arranges the water flow sensor on the intersection of the first flow channel for water replenishment, the third flow channel for introducing cold water and the sixth flow channel, so that the valve body structure layout is compact; and an arc flow channel connecting the first flow channel and the third flow channel is formed between the outer wall of the installation cavity and the inner wall of the valve body, so that the flow channel layout inside the valve body is more compact by fully utilizing the space inside the valve body.

[0016] The utility model saves space inside the valve body by arranging a slope channel connecting the water supply channel of the water supply valve and the water inlet channel of the water pump outside the valve body, so that the valve body structure is compactly arranged, and the fluid medium entering the water supply valve enters the fifth flow channel from the slope channel and then enters the external plate heat exchanger from the fifth flow channel, and will not directly enter the space where the water flow sensor is located, thereby avoiding affecting the operation of the water flow sensor when the water supply valve is replenishing water.

[0017] The valve body of the utility model is made of plastic material, and has the advantages of being easy to be injection molded and not prone to scaling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the structure of a water inlet valve provided in Example 1 of the utility model;

[0019] Figure 2 It is a schematic top view of the water inlet valve structure provided in Example 1 of the utility model;

[0020] Figure 3 This is a schematic diagram of a plate water circuit system provided in Example 2 of the utility model.

[0021] In the figure: 1-valve body, 2-first flow channel, 3-second flow channel, 4-third flow channel, 5-fourth flow channel, 6-fifth flow channel, 7-installation cavity, 8-arc flow channel, 9-sixth flow channel, 10-plate heat exchanger, 11-water supply valve, 12-circulating water pump, 13-water inlet valve, 14-slope flow channel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Embodiment 1:

[0024] like Figure 1 and Figure 2 As shown, this embodiment provides a water inlet valve, which includes a valve body 1, in which a first flow channel 2, a third flow channel 4 and a sixth flow channel 9 are arranged, wherein the first flow channel 2 is used to connect the water replenishment valve, and the third flow channel 4 is used to introduce cold water into the valve body 1; and the first flow channel 2 is connected to the sixth flow channel 9, and the sixth flow channel 9 is connected to the third flow channel 4; a mounting cavity 7 for mounting a water flow sensor is arranged at the intersection of the first flow channel 2, the third flow channel 4 and the sixth flow channel 9; an arc flow channel 8 is formed between the outer wall of the mounting cavity 7 and the inner wall of the valve body 1, so that the first flow channel 2 and the third flow channel 4 are connected through the arc flow channel 8. By arranging the mounting cavity 7 for mounting a water flow sensor at the intersection of the first flow channel 2, the third flow channel 4 and the sixth flow channel 9, and forming the arc flow channel 8 between the outer wall of the mounting cavity 7 and the inner wall of the valve body 1, the internal space of the valve body is fully utilized, and the flow channel structure layout inside the entire valve body is made compact.

[0025] In this embodiment, the sixth flow channel 9 is a necessary process flow channel connecting the third flow channel 4 and the first flow channel 2. During the use of the valve body 1, the end of the sixth flow channel 9 away from the valve body 1 is closed by a plug.

[0026] In this embodiment, the water inlet valve also includes a fifth flow channel 6 for connecting to the heating equipment. A sloped flow channel 14 is provided outside the valve body 1. The sloped flow channel 14 connects the first flow channel 2 and the fifth flow channel 6. The sloped flow channel 14 is provided outside the valve body 1, which saves space inside the valve body 1 and makes the valve body structure more compact.

[0027] In this embodiment, the ramp flow channel 14 has a first opening and a second opening that are interconnected, a medium flow channel is formed between the first opening and the second opening, the first opening is located on the side wall of the first flow channel 2, and the second opening is located on the side wall of the fifth flow channel 6; specifically, the ramp flow channel is respectively connected with the first flow channel 2 and the fifth flow channel 6, and the through openings formed on the first flow channel 2 and the fifth flow channel 6 are the first opening and the second opening, which makes the structural layout between the ramp flow channel, the first flow channel 2 and the fifth flow channel 6 more compact.

[0028] In this embodiment, the sloped flow channel 14 is a straight flow channel; specifically, the straight flow channel is easy to process, facilitates forming, and saves processing time.

[0029] In this embodiment, the first opening and the second opening are both wedge-shaped; in other embodiments, the first opening and the second opening are both elliptical, or the first opening is wedge-shaped and the second opening is elliptical, or the first opening is elliptical and the second opening is wedge-shaped; since the first opening and the second opening are respectively opened on the flow channel walls of the first flow channel 2 and the fifth flow channel 6, a triangular structure is formed between the slope flow channel and the first flow channel 2 and the fifth flow channel 6, so the flow channel layout is more compact.

[0030] In this embodiment, a fourth flow channel 5 for heat exchange is further included. The fourth flow channel 5 includes a first connecting port, and the first connecting port is directly connected to the installation cavity 7 .

[0031] In this embodiment, the fifth flow channel 6 includes a second connection port for connecting to a heating equipment pipe, and the openings of the first connection port and the second connection port are oriented in the same direction; specifically, the fourth flow channel 5 and the fifth flow channel 6 are both straight flow channels, and their central axes are parallel, and the outer walls of the fourth flow channel 5 and the sixth flow channel 6 are connected to each other and have no contact with the sloped flow channel 14, thereby saving processing costs.

[0032] In this embodiment, the third flow channel 4 is directly connected to the installation cavity 7; the fourth flow channel 5 is connected to the installation cavity 7; specifically, the third flow channel 4 is a linear flow channel, the central axes of the third flow channel 4 and the fourth flow channel 5 are perpendicular to each other, and an opening is provided on the cavity wall of the installation cavity 7, and the third flow channel 4 and the fourth flow channel 5 are respectively connected to the installation cavity 7 through the corresponding openings.

[0033] In this embodiment, the valve body 1 is integrally formed of plastic. The plastic material makes the valve body easier to process and less prone to scaling.

[0034] Embodiment 2:

[0035] According to another aspect of the present invention, a plate water path replacement system is also disclosed. Figure 3 As shown, the system includes a water outlet valve 13 and a water inlet valve as provided in any of the above embodiments, and a plate heat exchanger 10 connected between the water outlet valve 13 and the water inlet valve, the fourth flow channel 5 and the fifth flow channel 6 are respectively connected to the plate heat exchanger 10, the first flow channel 2 is connected to a water replenishment valve 11, the second flow channel 3 is connected to a circulating water pump 12, and a water flow sensor is installed in the installation cavity 7. Tap water enters the valve body 1 from the third flow channel 4 and enters the plate heat exchanger 10 from the fourth flow channel 5. When the water replenishment valve is opened, the tap water can enter the fifth flow channel 6 from the first flow channel 2 via the ramp flow channel 14, and then enter the plate heat exchanger from the fifth flow channel 6 for heat exchange.

[0036] The utility model has the following advantages:

[0037] (1) By providing a mounting cavity 7 for mounting a water flow sensor at the intersection of the first flow channel 2 for water replenishment, the third flow channel 4 for introducing cold water, and the sixth flow channel 9 for connecting the first flow channel 2 and the third flow channel 4, and forming an arc-shaped flow channel 8 between the outer wall of the mounting cavity 7 and the inner wall of the valve body 1, the internal space of the valve body is fully utilized, so that the flow channel structure layout inside the entire valve body is compact;

[0038] (2) The utility model saves the internal space of the valve body by setting the slope channel connecting the water supply channel of the water supply valve and the water inlet channel of the water pump outside the valve body, so that the valve body structure layout is compact, and the fluid medium entering the water supply valve enters the fifth flow channel from the slope channel, and then enters the external plate heat exchanger from the fifth flow channel, and will not directly enter the space where the water flow sensor is located, thereby avoiding the water supply valve affecting the operation of the water flow sensor when replenishing water.

[0039] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water inlet valve, characterized in that: The invention comprises a valve body (1), wherein a first flow channel (2), a third flow channel (4) and a sixth flow channel (9) are arranged in the valve body (1); the first flow channel (2) and the sixth flow channel (9) are connected, and the sixth flow channel (9) and the third flow channel (4) are connected; an installation cavity (7) for installing a water flow sensor is arranged at the intersection of the first flow channel (2), the third flow channel (4) and the sixth flow channel (9); and an arc-shaped flow channel (8) for connecting the first flow channel (2) and the third flow channel (4) is formed between the outer wall of the installation cavity (7) and the inner wall of the valve body (1).

2. A water inlet valve as claimed in claim 1, characterized in that: It also comprises a fifth flow channel (6) for connecting to heating equipment. The valve body (1) is provided with a ramp flow channel (14) outside, and the ramp flow channel (14) connects the first flow channel (2) and the fifth flow channel (6).

3. A water inlet valve as claimed in claim 2, characterized in that: The ramp flow channel (14) comprises a first opening and a second opening which are connected to each other, a medium flow channel is formed between the first opening and the second opening, the first opening is located on the side wall of the first flow channel (2), and the second opening is located on the side wall of the fifth flow channel (6).

4. A water inlet valve as claimed in claim 3, characterized in that: The first opening and / or the second opening is wedge-shaped or elliptical.

5. A water inlet valve as claimed in claim 1, characterized in that: It also comprises a second flow channel (3) for connecting a water pump, wherein the second flow channel (3) is directly connected to the first flow channel (2).

6. A water inlet valve as claimed in claim 2, characterized in that: It also comprises a fourth flow channel (5) for heat exchange, wherein the fourth flow channel (5) comprises a first connection port, and the first connection port is directly connected to the installation cavity (7).

7. A water inlet valve as claimed in claim 6, characterized in that: The fifth flow channel (6) comprises a second connecting port, and the openings of the first connecting port and the second connecting port are oriented in the same direction.

8. A water inlet valve as claimed in claim 1, characterized in that: The third flow channel (4) is directly connected to the installation cavity (7).

9. A water inlet valve as claimed in claim 1, characterized in that: The valve body (1) is integrally formed from plastic.

10. A plate water channel system, characterized in that: It comprises a water outlet valve (13) and a water inlet valve as described in any one of claims 1 to 9, and a plate heat exchanger (10) connected between the water outlet valve (13) and the water inlet valve, the fourth flow channel (5) and the fifth flow channel (6) are respectively connected to the plate heat exchanger (10), the first flow channel (2) is connected to a water replenishment valve (11), the second flow channel (3) is connected to a circulating water pump (12), and a water flow sensor is installed in the installation cavity (7).

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