A hose control valve

Abstract

This invention relates to a hose control valve, comprising a valve body, a nozzle, a hose, a first check valve, a first normally closed solenoid valve, an electric L-type three-way ball valve, a pipeline booster pump, a second normally closed solenoid valve, and a second check valve. The nozzle is fixed inside the valve body, and the hose is wrapped around the outside of the nozzle and located between the inner walls of the valve body, forming an annular control cavity. The nozzle has a flow channel and a flow-guiding baffle plate, the flow channel connecting the interior of the valve body and the annular control cavity. The first check valve is connected to the inlet end of the valve body; the second check valve is connected to the outlet end of the valve body. The first check valve, the first normally closed solenoid valve, the electric L-type three-way ball valve, the second normally closed solenoid valve, and the second check valve are connected sequentially, and the electric L-type three-way ball valve is also connected to the valve body. The pipeline booster pump is connected in parallel to both ends of the electric L-type three-way ball valve. Compared with the prior art, this invention has an axial flow structure, which has the advantages of energy dissipation and flow regulation, and overcomes the problem of scale buildup and jamming failure of traditional sleeve-type energy dissipation and flow regulation valves in water media.

Description

Technical Field

[0001] This invention relates to the field of control valves, and in particular to a hose control valve. Background Technology

[0002] Sleeve control valves are ideal for energy dissipation and flow regulation in water systems. Common types include fixed cone valves, piston valves (divided into multi-hole and conventional types), and multi-jet valves. These valves are characterized by a stainless steel sleeve gate and a stainless steel nozzle, which are fitted together with a clearance. The opening of the valve is controlled by the linear reciprocating motion of the sleeve gate. As stainless steel oxidizes in water, producing oxides, and calcium and magnesium ions in the water precipitate, these oxides flow into the gap between the sleeve gate and the nozzle. If the valve does not operate for a long time, the oxides and precipitates will accumulate, eventually jamming the sleeve gate and causing the valve to malfunction. In addition, the above-mentioned control valves have relatively complex structures and require expensive electric actuators, resulting in a relatively high failure rate.

[0003] The utility model disclosed in CN208764374U is a clamp control valve. Although this valve also uses a rubber hose to control the flow of the valve, since the outside of the rubber hose is open to the atmosphere, the strength of the rubber itself determines that the medium pressure cannot be too high. At the same time, there is no principle of collision energy dissipation, so it cannot be used for energy dissipation and can only be used for regulating the flow of sewage media with lower pressure. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hose control valve with a simple structure and low cost.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A hose control valve includes a valve body, a spray nozzle, a hose, a first check valve, a first normally closed solenoid valve, an electric L-type three-way ball valve, a pipeline booster pump, a second normally closed solenoid valve, and a second check valve.

[0007] The nozzle is fixed inside the valve body, and the hose is wrapped around the outside of the nozzle and located between the inner walls of the valve body, forming an annular control cavity. The nozzle is provided with a flow channel and a flow-guiding baffle plate. The flow channel connects the inside of the valve body and the annular control cavity, and the flow-guiding baffle plate is located inside the nozzle to separate the front and rear of the nozzle. The first one-way valve is connected to the inlet end of the valve body, so that the medium in the valve body can only exit and not enter. The second one-way valve is connected to the outlet end of the valve body, so that the medium in the valve body can only enter and not exit.

[0008] The first check valve, the first normally closed solenoid valve, the electric L-type three-way ball valve, the second normally closed solenoid valve, and the second check valve are connected in sequence. The electric L-type three-way ball valve is also connected to the valve body and communicates with the annular control chamber. The pipeline booster pump is connected in parallel to both ends of the electric L-type three-way ball valve.

[0009] Furthermore, the valve body has a rotationally symmetrical straight-through structure with a lampshade-shaped center, and flanges are provided at both the inlet and outlet ends of the valve body.

[0010] Furthermore, the nozzle has a rotationally symmetrical structure, and the outlet end of the nozzle is flange-shaped, with the outlet end of the nozzle fixed to the flange surface at the outlet end of the valve body.

[0011] Furthermore, the nozzle has a filter screen at the inlet and multiple nozzle holes at the outlet. The flow-guiding baffle plate separates the filter screen and the nozzle holes. Both the filter screen and the nozzle holes are connected to the interior of the valve body and the annular control chamber.

[0012] Furthermore, the inlet end of the hose is corrugated, and the outlet end of the hose is cylindrical.

[0013] Furthermore, the wall thickness of the straight cylindrical portion of the hose gradually increases from the inlet to the outlet.

[0014] Furthermore, the tubing is made of elastic rubber material.

[0015] Furthermore, the inlet end of the first normally closed solenoid valve is connected to the first check valve, and the outlet end is connected to the pipeline booster pump and the electric L-type three-way ball valve, respectively.

[0016] The outlet of the second normally closed solenoid valve is connected to the second check valve, and the inlet is connected to the pipeline booster pump and the electric L-type three-way ball valve, respectively.

[0017] Furthermore, the two straight-through ends of the electric L-shaped three-way ball valve are respectively connected to the first normally closed solenoid valve and the second normally closed solenoid valve, and one right-angle end of the electric L-shaped three-way ball valve is connected to the valve body and communicates with the annular control cavity.

[0018] Furthermore, the flow direction of the pipeline booster pump is from the first normally closed solenoid valve to the second normally closed solenoid valve.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] (1) This valve has a simple structure and low cost. The main valve has only three parts: valve body, nozzle and hose. It is low in cost and highly reliable. The external piping only uses low-cost solenoid valves and booster pumps. The traditional energy dissipation and flow regulating valves require expensive electric actuators, so the total manufacturing cost of the valve is greatly reduced.

[0021] (2) The rubber tube replaces the stainless steel sleeve (gate) of the traditional energy dissipation and flow regulating valve, which overturns the traditional concept of relying on the stainless steel sleeve gate to make reciprocating motion for opening and closing the valve, and completely solves the fatal flaw of the stainless steel sleeve (gate) of the traditional energy dissipation and flow regulating valve being prone to scaling and jamming. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a hose control valve provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the hose configuration for a hose control valve with a small opening (approximately 10%) provided in an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the hose configuration for a hose control valve at a medium opening (approximately 50%) provided in an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the hose configuration when a hose control valve is fully open (approximately 100%), as provided in an embodiment of the present invention.

[0026] In the diagram, 1 is the valve body, 2 is the nozzle, 3 is the hose, 4 is the first check valve, 5 is the first normally closed solenoid valve, 6 is the electric L-type three-way ball valve, 7 is the pipeline booster pump, 8 is the second normally closed solenoid valve, and 9 is the second check valve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] Example 1

[0034] like Figure 1 As shown, this embodiment provides a hose control valve, including a valve body 1, a spray pipe 2, a hose 3, a first check valve 4, a first normally closed solenoid valve 5, an electric L-type three-way ball valve 6, a pipeline booster pump 7, a second normally closed solenoid valve 8, a second check valve 9, and some 90° elbows, tees, straight pipes, etc.

[0035] The nozzle 2 is fixed inside the valve body 1, and the hose 3 is wrapped around the outside of the nozzle 2 and located between the inner walls of the valve body 1 to form an annular control cavity. The nozzle 2 is provided with a flow channel and a flow-guiding baffle. The flow channel connects the inside of the valve body 1 and the annular control cavity, and the flow-guiding baffle is located inside the nozzle 2 to separate the front and rear of the nozzle 2. The first one-way valve 4 is connected to the inlet end of the valve body 1, so that the medium in the valve body 1 can only exit and not enter. The second one-way valve 9 is connected to the outlet end of the valve body 1, so that the medium in the valve body 1 can only enter and not exit.

[0036] The first check valve 4, the first normally closed solenoid valve 5, the electric L-type three-way ball valve 6, the second normally closed solenoid valve 8, and the second check valve 9 are connected in sequence. The electric L-type three-way ball valve 6 is also connected to the valve body 1 and connects to the annular control chamber. The pipeline booster pump 7 is connected in parallel to both ends of the electric L-type three-way ball valve 6.

[0037] Specifically, valve body 1 has a rotationally symmetrical straight-through structure with a lampshade-shaped center. Flanges are provided at both the inlet and outlet ends of valve body 1.

[0038] The nozzle 2 has a rotationally symmetrical structure. The outlet end of the nozzle 2 is flange-shaped and fixed to the flange surface at the outlet end of the valve body 1. The inlet of the nozzle 2 is equipped with a filter screen, and the outlet end has multiple spray holes. A flow-guiding baffle plate separates the filter screen and the spray holes. Both the filter screen and the spray holes are connected to the interior of the valve body 1 and the annular control chamber.

[0039] The aforementioned filter screen is a porous filter plate. The function of the filter plate is to support the rubber tube 3 in the closed state and to prevent garbage from entering.

[0040] The aforementioned nozzle is preferably a conical nozzle.

[0041] The hose 3 is made of elastic rubber, with a corrugated inlet and a straight outlet. The rubber thickness gradually increases in the straight section to ensure that the hose 3 expands linearly under different pressures. The hose 3 is tightly wrapped between the outside of the nozzle 2 and the inner wall of the valve body 1, naturally forming an annular control cavity. This annular control cavity is used to control the hose expansion, i.e., the flow area of ​​the small conical orifice.

[0042] One-way valve 4 is connected to the inlet end of valve body 1, and the flow direction is to ensure that the medium in valve body 1 only flows out and does not flow in.

[0043] The inlet of the first normally closed solenoid valve 5 is connected to the first check valve 4, and the outlet is connected to the pipeline booster pump 7 and the electric L-type three-way ball valve 6 respectively.

[0044] The outlet of the second normally closed solenoid valve 8 is connected to the second check valve 9, and the inlet is connected to the pipeline booster pump 7 and the electric L-type three-way ball valve 6, respectively.

[0045] The two straight ends of the electric L-type three-way ball valve 6 are respectively connected to the first normally closed solenoid valve and the second normally closed solenoid valve 8, and one right-angle end of the electric L-type three-way ball valve 6 is connected to the valve body 1 and connected to the annular control chamber.

[0046] The inlet end of the pipeline booster pump 7 is connected to the normally closed solenoid valve 5, and the outlet end is connected to the normally closed solenoid valve 8. It is also connected in parallel to the two straight-through ends of the electric L-type three-way ball valve 6. The flow direction of the pipeline booster pump 7 is from the first normally closed solenoid valve 5 to the second normally closed solenoid valve 8.

[0047] The function of the pipeline booster pump 7 is to ensure that the external pressure of the hose is greater than the internal pressure when the valve is closed, so that the seal is more reliable. At the same time, during the valve opening process, the head of the booster pump can overcome the tension of the hose and ensure that the opening degree meets the standard.

[0048] The inlet of check valve 9 is connected to normally closed solenoid valve 8, and the outlet is connected to the outlet of valve body 1.

[0049] Because this valve uses the principle of small-hole impact jet, it can not only regulate flow but also be used in high pressure differential energy dissipation and pressure reduction conditions.

[0050] Conditions: This valve requires a separate PLC control box, a pressure sensor at the valve outlet (for energy dissipation and pressure reduction requirements), and a flow sensor on the downstream pipeline (for flow regulation requirements).

[0051] The process is as follows:

[0052] When there is a flow or pressure demand at the downstream of this valve, the PLC issues a valve opening command according to the set value of the demand, that is, the first normally closed solenoid valve 5 on the pipeline is de-energized; the pipeline booster pump 7 and the second normally closed solenoid valve 8 are energized; the electric L-type three-way ball valve 6 is energized (connecting 8 and the control chamber); Figure 2 This is a hose with a small opening (approximately 10%). Figure 3 This is a medium-opening (approximately 50%) hose configuration. Figure 4 This refers to the fully open (approximately 100%) hose configuration.

[0053] When the opening reaches the required value, the PLC will issue a stop command, which means that the first normally closed solenoid valve 5, the electric L-type three-way ball valve 6, the pipeline booster pump 7, and the second normally closed solenoid valve 8 on the piping will all be de-energized (in a holding state).

[0054] When the flow or pressure downstream of the valve exceeds the required value, the PLC will issue a valve closing command: the second normally closed solenoid valve 8 on the pipeline will be de-energized, the first normally closed solenoid valve 5, the pipeline booster pump 7 will be energized, and the electric L-type three-way ball valve 6 will be energized (connecting the first normally closed solenoid valve 5 and the control chamber). If the flow or pressure downstream of the valve returns to the required value, the PLC will instruct the first normally closed solenoid valve 5, the electric L-type three-way ball valve 6, the pipeline booster pump 7, and the second normally closed solenoid valve 8 to all be de-energized (maintaining the state).

[0055] After the valves are fully closed, the PLC will instruct the first normally closed solenoid valve 5, the electric L-type three-way ball valve 6, the pipeline booster pump 7, and the second normally closed solenoid valve 8 to all be de-energized.

[0056] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A hose control valve, characterized in that, Includes valve body (1), nozzle (2), hose (3), first check valve (4), first normally closed solenoid valve (5), electric L-type three-way ball valve (6), pipeline booster pump (7), second normally closed solenoid valve (8), and second check valve (9); The nozzle (2) is fixed inside the valve body (1), and the hose (3) is wrapped around the outside of the nozzle (2) and located between the inner walls of the valve body (1) to form an annular control cavity; the nozzle (2) is provided with a flow channel and a flow-guiding baffle plate. The flow channel connects the inside of the valve body (1) and the annular control cavity, and the flow-guiding baffle plate is located inside the nozzle (2) to separate the front and rear parts of the nozzle (2); the first one-way valve (4) is connected to the inlet end of the valve body (1) so that the medium in the valve body (1) can only go out and not go in; the second one-way valve (9) is connected to the outlet end of the valve body (1) so that the medium in the valve body (1) can only go in and not go out. The first check valve (4), the first normally closed solenoid valve (5), the electric L-type three-way ball valve (6), the second normally closed solenoid valve (8) and the second check valve (9) are connected in sequence. The electric L-type three-way ball valve (6) is also connected to the valve body (1) and connected to the annular control chamber. The pipeline booster pump (7) is connected in parallel to both ends of the electric L-type three-way ball valve (6).

2. The hose control valve according to claim 1, characterized in that, The valve body (1) is a rotationally symmetrical straight-through structure with a lampshade-shaped center. Both the inlet and outlet ends of the valve body (1) are provided with flanges.

3. The hose control valve according to claim 1, characterized in that, The nozzle (2) has a rotationally symmetrical structure. The outlet end of the nozzle (2) is flange-shaped and is fixed on the flange surface of the outlet end of the valve body (1).

4. A hose control valve according to claim 1, characterized in that, The nozzle (2) has a filter screen at the inlet and multiple nozzle holes at the outlet. The flow guide baffle separates the filter screen and the nozzle holes. The filter screen and the nozzle holes are connected to the interior of the valve body (1) and the annular control cavity.

5. A hose control valve according to claim 1, characterized in that, The inlet end of the hose (3) is corrugated, and the outlet end of the hose (3) is cylindrical.

6. A hose control valve according to claim 5, characterized in that, The wall thickness of the straight cylindrical part of the hose (3) increases from the inlet to the outlet.

7. A hose control valve according to claim 1, characterized in that, The tubing (3) is made of elastic rubber.

8. A hose control valve according to claim 1, characterized in that, The inlet end of the first normally closed solenoid valve (5) is connected to the first check valve (4), and the outlet end is connected to the pipeline booster pump (7) and the electric L-type three-way ball valve (6). The outlet end of the second normally closed solenoid valve (8) is connected to the second check valve (9), and the inlet end is connected to the pipeline booster pump (7) and the electric L-type three-way ball valve (6).

9. A hose control valve according to claim 1, characterized in that, The two straight ends of the electric L-type three-way ball valve (6) are respectively connected to the first normally closed solenoid valve (5) and the second normally closed solenoid valve (8), and one right-angle end of the electric L-type three-way ball valve (6) is connected to the valve body (1) and communicates with the annular control cavity.

10. A hose control valve according to claim 1, characterized in that, The flow direction of the pipeline booster pump (7) is from the first normally closed solenoid valve (5) to the second normally closed solenoid valve (8).

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