Diaphragm valve

Abstract

The utility model relates to the technical field of valves, and discloses a diaphragm valve which comprises a first air outlet pipeline and a second air outlet pipeline, a plurality of valve bodies are arranged on the second air outlet pipeline in a communicated mode, the valve bodies are provided with air inlet pipelines in a communicated mode, transverse flow channel sets and longitudinal flow channel sets are formed in the valve bodies, and the air inlet pipelines and the transverse flow channel sets form transverse air inlet pipelines. The transverse air inlet pipeline is communicated with the first air outlet pipeline, the air inlet pipeline and the longitudinal flow channel set form a longitudinal air inlet pipeline, the longitudinal air inlet pipeline is communicated with the second air outlet pipeline, and actuators matched with the transverse flow channel set and the longitudinal flow channel set are arranged on the upper portion and the lower portion of the valve body respectively. According to the diaphragm valve, the actuators corresponding to the transverse flow channel sets and the longitudinal flow channel sets are arranged on the valve bodies to independently execute two kinds of fluid conveyed into each valve body, so that the single valve body can achieve integrated dual-drive, and the multiple valve bodies are stacked to form a plurality of fluid branch control; and more fluid branch control can be formed in a limited space.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a diaphragm valve. Background Art

[0002] The diaphragm valve is a stop valve that uses a diaphragm as a start and stop part to close the flow channel, cut off the fluid, and separate the inner cavity of the valve body from the inner cavity of the valve cover. The diaphragm is usually made of elastic, corrosion-resistant, and non-permeable materials such as rubber and plastic. The valve body is mostly made of plastic, fiberglass, ceramic or metal-lined rubber materials. The diaphragm valve has a simple structure, good sealing and corrosion resistance, and low fluid resistance. It is often used in low-pressure, low-temperature, highly corrosive media and media containing suspended matter.

[0003] In actual use, there may be situations where multiple fluids need to be transported or mixed separately. In this case, if more fluid control branches are set up, multiple valves need to be installed, which also greatly increases the number of installation parts such as threaded joints, flanges, elbows, straight pipes and pipe joints between valves, which not only makes the entire fluid control bulky and the cost increases. More importantly, since the installation parts occupy a large space, more diaphragm valves cannot be installed in the limited space, making it difficult to form more fluid branch controls. Utility Model Content

[0004] The purpose of the utility model is to provide a diaphragm valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diaphragm valve, comprising: a first air outlet pipe and a second air outlet pipe, the second air outlet pipe is connected to a plurality of valve bodies, the valve bodies are connected to an air inlet pipe, the valve body is provided with a transverse flow channel group and a longitudinal flow channel group, the air inlet pipe and the transverse flow channel group form a transverse air inlet pipeline, the transverse air inlet pipeline is connected to the first air outlet pipe, the air inlet pipe and the longitudinal flow channel group form a longitudinal air inlet pipeline, the longitudinal air inlet pipeline is connected to the second air outlet pipe, and actuators adapted to the transverse flow channel group and the longitudinal flow channel group are respectively provided on the upper and lower parts of the valve body.

[0006] Preferably, the transverse flow channel group includes a first inlet flow channel and a first outlet flow channel.

[0007] Preferably, the air inlet pipe is a two-section truncated pipe, one section is welded to the left side of the valve body and connected to the first inlet flow channel, and the other section is welded to the right side of the valve body and connected to the first outlet flow channel and the first outlet pipe.

[0008] Preferably, the longitudinal flow channel group includes a second inlet flow channel and a second outlet flow channel.

[0009] Preferably, the second intake air passage is communicated with the first intake air passage.

[0010] Preferably, the second outlet air passage is communicated with the second outlet air pipe.

[0011] Preferably, the actuator includes a first actuator and a second actuator.

[0012] Preferably, the first actuator is arranged above the transverse flow channel group.

[0013] Preferably, the second actuator is arranged below the longitudinal flow channel group.

[0014] The diaphragm valve has the following beneficial effects:

[0015] The diaphragm valve independently executes the two fluids delivered to each valve body by arranging actuators corresponding to the transverse flow channel group and the longitudinal flow channel group on the valve body, so that a single valve body can realize integrated dual drive, thereby forming two fluid control branches. Multiple valve bodies are superimposed to form several fluid branch controls. Several valve bodies do not need to be connected to each other using joints, flanges and other installation parts. A multi-channel valve group is formed only by connecting with the air inlet pipe and the air outlet pipe, so that more fluid branch controls can be formed in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a diaphragm valve provided in an embodiment of the present application;

[0017] Figure 2 A top view of a diaphragm valve provided in an embodiment of the present application;

[0018] Figure 3 It is a cross-sectional view of the diaphragm valve in the axial direction of the intake pipe;

[0019] Figure 4 is a cross-sectional view of the diaphragm valve in the axial direction of the second gas outlet pipe;

[0020] Figure 5 This is a connection diagram of the actuator, valve body and pipeline.

[0021] In the figure: 1. valve body; 11. first inlet flow channel; 12. first outlet flow channel; 13. second inlet flow channel; 14. second outlet flow channel; 2. air intake pipe; 21. air intake port; 3. first outlet pipe; 31. first outlet port; 4. second outlet pipe; 41. second outlet port; 5. first actuator; 6. second actuator. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 2 As shown, the utility model provides a diaphragm valve, including: a first air outlet pipe 3 and a second air outlet pipe 4, wherein first air outlet ports 31 are arranged at both ends of the first air outlet pipe 3, and are connected to external equipment, and similarly, second air outlet ports 41 are arranged at both ends of the second air outlet pipe 4, and are also connected to external equipment, wherein a plurality of valve bodies 1 are welded to the second air outlet pipe 4, and the second air outlet pipe 4 is connected to the valve body 1, and the valve body 1 is a diaphragm valve body.

[0024] Among them, Figure 2 As shown, the valve body 1 is connected to an air intake pipe 2, an air intake port 21 is arranged at one end of the air intake pipe 2, and the air intake port 21 is connected to an external fluid delivery source. The valve body 1 is provided with a transverse flow channel group and a longitudinal flow channel group. The air intake pipe 2 and the transverse flow channel group form a transverse air intake pipeline, and the transverse air intake pipeline is connected to the first air outlet pipe 3. The air intake pipe 2 and the longitudinal flow channel group form a longitudinal air intake pipeline, and the longitudinal air intake pipeline is connected to the second air outlet pipe 4.

[0025] Specifically, Figure 2 As shown, actuators adapted to the transverse flow channel group and the longitudinal flow channel group are respectively arranged at the upper and lower parts of the valve body 1, and the actuators include a first actuator 5 and a second actuator 6. The first actuator 5 is arranged above the transverse flow channel group, and the first actuator 5 is used to adjust the fluid delivered from the air inlet 21 to the transverse flow channel group.

[0026] Further, such as Figure 1 , Figure 3 As shown, the lateral flow channel group includes a first inlet flow channel 11 and a first outlet flow channel 12, and the air intake pipe 2 is a two-section truncated pipe, one section is welded on the left side of the valve body 1 and connected to the first inlet flow channel 11, and the other section is welded on the right side of the valve body 1 and connected to the first outlet flow channel 12 and the first outlet pipe 3.

[0027] In this embodiment, the fluid enters the intake pipe 2 from the air inlet 21, the second actuator 6 is closed, and the first actuator 5 is opened. The first actuator 5 causes the diaphragm in the valve body 1 to separate from the valve seat. At this time, the first intake flow channel 11 is connected to the first outlet flow channel 12, and the fluid flows from the intake pipe 2 into the first intake flow channel 11, then flows out from the first outlet flow channel 12 to the first outlet pipe 3, and finally flows out from the first outlet port 31, forming a fluid branch control in the valve body 1.

[0028] Specifically, Figure 2 As shown, the second actuator 6 is disposed below the longitudinal flow channel group, and the second actuator 6 is used to adjust the fluid delivered from the air inlet 21 to the longitudinal flow channel group.

[0029] Further, such as Figure 2 , Figure 4 As shown, the longitudinal flow channel group includes a second inlet flow channel 13 and a second outlet flow channel 14 . The second inlet flow channel 13 is connected to the first inlet flow channel 11 , and the second outlet flow channel 14 is connected to the second outlet pipe 4 .

[0030] In this embodiment, the fluid enters the intake pipe 2 from the air inlet 21, the first actuator 5 is closed, and the second actuator 6 is opened. The second actuator 6 causes the diaphragm in the valve body 1 to separate from the valve seat. At this time, the second intake channel 13 is connected to the second outlet channel 14, and the fluid flows from the intake pipe 2 into the first intake channel 11. Since the first actuator 5 is in a closed state, the fluid in the first intake channel 11 cannot flow out from the first outlet channel 12, but flows from the first intake channel 11 into the second intake channel 13, and then flows out from the second outlet channel 14 to the second outlet pipe 4, and finally flows out from the second outlet port 41, forming another fluid branch control in the valve body 1.

[0031] In this application, if Figure 5 As shown, the first actuator 5 and the second actuator 6 are used to independently execute the two fluids delivered to each valve body 1, so that a single valve body 1 can achieve integrated dual drive, thereby forming two fluid control branches, and multiple valve bodies 1 are superimposed to form several fluid branch controls. The actuators in multiple valve bodies 1 can also be opened at the same time, so that different fluid media can flow from different air inlets 21 into the same air outlet pipe (the first air outlet pipe 3 or the second air outlet pipe 4) to be aggregated to form a mixed gas for use at the back end.

[0032] It can be understood that several valve bodies 1 do not need to be connected to each other using joints, flanges and other installation components. A multi-channel valve group is formed only by connecting with the air inlet pipe and the air outlet pipe, so that more fluid branch controls can be formed in a limited space. Compared with the existing technology, it can not only reduce the installation space, but also greatly reduce the material cost and installation cost, and it is more convenient to use.

[0033] Working principle: The first actuator 5 and the second actuator 6 are used to independently execute the two fluids delivered to each valve body 1, so that a single valve body 1 can achieve integrated dual drive, thereby forming two fluid control branches. Multiple valve bodies 1 are superimposed to form several fluid branch controls. The actuators in multiple valve bodies 1 can also be opened at the same time, so that different fluid media can flow from different air inlets 21 into the same air outlet pipe to be aggregated to form a mixed gas.

[0034] In summary, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diaphragm valve, characterized in that: include: A first air outlet pipeline (3) and a second air outlet pipeline (4), wherein the second air outlet pipeline (4) is connected to and provided with a plurality of valve bodies (1); The valve body (1) is connected to an air intake pipe (2), the valve body (1) is provided with a transverse flow channel group and a longitudinal flow channel group, the air intake pipe (2) and the transverse flow channel group form a transverse air intake pipeline, the transverse air intake pipeline is connected to the first air outlet pipe (3), the air intake pipe (2) and the longitudinal flow channel group form a longitudinal air intake pipeline, the longitudinal air intake pipeline is connected to the second air outlet pipe (4); The upper part and the lower part of the valve body (1) are respectively provided with actuators adapted to the transverse flow channel group and the longitudinal flow channel group.

2. A diaphragm valve according to claim 1, characterized in that: The transverse flow channel group comprises a first inlet flow channel (11) and a first outlet flow channel (12).

3. A diaphragm valve according to claim 2, characterized in that: The air intake pipe (2) is a two-section truncated pipe, one section is welded to the left side of the valve body (1) and is connected to the first air intake passage (11), and the other section is welded to the right side of the valve body (1) and is connected to the first air outlet passage (12) and the first air outlet pipe (3).

4. A diaphragm valve according to claim 2, characterized in that: The longitudinal flow channel group comprises a second inlet flow channel (13) and a second outlet flow channel (14).

5. A diaphragm valve according to claim 4, characterized in that: The second intake air passage (13) is in communication with the first intake air passage (11).

6. A diaphragm valve according to claim 4, characterized in that: The second air outlet channel (14) is in communication with the second air outlet pipe (4).

7. A diaphragm valve according to claim 1, characterized in that: The actuator comprises a first actuator (5) and a second actuator (6).

8. A diaphragm valve according to claim 7, characterized in that: The first actuator (5) is arranged above the transverse flow channel group.

9. A diaphragm valve according to claim 7, characterized in that: The second actuator (6) is arranged below the longitudinal flow channel group.

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