Anti-corrosion automatic water discharging device

Abstract

The utility model belongs to the technical field of pipeline drainage equipment, and particularly relates to an anti-corrosion automatic drainer. The top end of a barrel is connected with a top cover in an embedded mode, the barrel is made of anti-corrosion materials, a water inlet pipe is arranged on the side wall of the top end of the barrel, the water inlet pipe is made of polyethylene materials, a water inlet valve is connected to the water inlet pipe, and a positive pressure hole and a negative pressure hole are formed in the side wall beside the water inlet pipe. The positive pressure hole is connected with an air pipe, the negative pressure hole is connected with a negative pressure balance pipe, a mounting plate is welded to the upper portion in the barrel, a positive and negative pressure conversion valve is fixed to the mounting plate and provided with a first connector and a second connector, the first connector is higher than the second connector, the first connector is connected with the positive pressure hole, and the second connector is connected with the negative pressure hole. A counter weight is arranged above the floating ball, a water outlet pipe is arranged on the side wall of the bottom end of the barrel, a self-closing valve is connected to the water outlet pipe, and a bottom plate is welded to the bottom end of the barrel in a hot melting mode and is obliquely arranged. The water drainer is not easy to corrode and block, and the top cover is in embedded connection and is convenient to disassemble and maintain.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipeline drainage equipment, and in particular relates to an anti-corrosion automatic water discharge device. Background Technology

[0002] Currently, common automatic water discharge devices use a machined steel cylinder with paint or epoxy powder coating for corrosion protection. The internal valve core uses a steel piston structure and utilizes water level and air pressure to control automatic water discharge. The disadvantages of this type of product are as follows:

[0003] (1) The cylinder has poor corrosion resistance. The paint or epoxy powder coating on the surface is water-permeable. When the water quality is highly corrosive, the corrosion resistance time is very short. It will be severely corroded in less than three months. The internal valve core is made of steel, which will quickly corrode and jam in a corrosive environment, and cannot realize the function of automatic water discharge.

[0004] (2) The cylinder body is made of welding process, which makes it inconvenient to replace and maintain the valve core inside the cylinder body. Utility Model Content

[0005] The purpose of this invention is to provide a corrosion-resistant automatic water discharge device, which solves the problems of poor corrosion resistance and inconvenient maintenance of existing automatic water discharge devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An anti-corrosion automatic water discharge device includes a cylinder, a top cover, a bottom plate, and a positive / negative pressure conversion valve body. The top of the cylinder is embeddedly connected to the top cover. The cylinder is made of corrosion-resistant material. A water inlet pipe is provided on the side wall of the top of the cylinder. The water inlet pipe is made of polyethylene material to ensure that the water inlet pipe is not prone to water and sediment accumulation. A water inlet valve is connected to the water inlet pipe. A positive pressure hole and a negative pressure hole are opened on the side wall next to the water inlet pipe. The positive pressure hole is connected to an air pipe, and the negative pressure hole is connected to a negative pressure balance pipe. An installation plate is welded to the upper part of the cylinder. The positive / negative pressure conversion valve body is fixed on the installation plate. The positive / negative pressure conversion valve body is provided with a first interface and a second interface. The first interface is higher than the second interface. The first interface is connected to the positive pressure hole, and the second interface is connected to the negative pressure hole. The valve core of the positive / negative pressure conversion valve body is connected to a float ball through a screw thread. A counterweight is provided above the float ball. A water outlet pipe is provided on the side wall of the bottom end of the cylinder. A self-closing valve is connected to the water outlet pipe. A bottom plate is hot-melt welded to the bottom end of the cylinder. The bottom plate is inclined. A sealing cover is connected to the bottom end of the cylinder below the bottom plate.

[0008] Preferably, the cylindrical body is made of polyethylene or polyvinyl chloride.

[0009] Preferably, the top cover is made of transparent acrylic sheet and is fixed with Torx screws for easy disassembly, observation and maintenance.

[0010] Preferably, the valve core of the positive and negative pressure conversion valve body is made of polymer material, which is easy to cut and has good machining accuracy, effectively ensuring the sliding fit accuracy of the valve core.

[0011] Working Principle: The buoyancy generated by the float overcomes the pressure difference and its own weight, causing the float to drive the valve core of the positive / negative pressure conversion valve body to rotate, completing the air pressure conversion. When the inlet pipe of the drainer is connected to the pumping pipe, the negative pressure balance pipe and the inlet valve open. Under the action of negative pressure, the self-closing valve on the outlet pipe closes. At this time, water from the pumping pipe can flow into the drainer through the inlet pipe, causing the water level to rise. The float rises with the water level. When the water level rises to a certain height, the buoyancy generated by the float is greater than its own weight and the pressure difference, pushing the valve core upward. The cylinder is connected to the atmosphere through the positive pressure hole and the air pipe, and the inlet valve closes. Under the action of pressure difference, the self-closing valve on the outlet pipe opens, and water flows out. When the water level drops, the float descends, the valve core descends, and the cylinder is connected to the negative pressure pipe through the negative pressure hole. Under the action of negative pressure, the self-closing valve on the outlet pipe closes, the inlet valve opens, and water flows into the cylinder through the inlet pipe. This cycle repeats, realizing the automatic water intake and discharge function.

[0012] The beneficial effects achieved by this utility model are:

[0013] (1) The pressure inside the cylinder is adjusted by a float ball, a positive and negative pressure conversion valve body combined with a counterweight, and the water inlet and outlet are controlled. The operation is simple and the water inlet and outlet are smooth.

[0014] (2) The cylinder and the top cover are connected by embedded connection and screw fixing, which makes it easy to replace and maintain the valve core of the positive and negative pressure conversion valve body in the top cover and the cylinder. The cylinder is made of polyethylene or polyvinyl chloride, which is low in cost and has strong corrosion resistance. The valve core of the positive and negative pressure conversion valve body is made of polymer material, which is highly accurate and not easily corroded or jammed, thus realizing automatic water discharge.

[0015] (3) The top cover adopts an embedded connection and is covered with a transparent plate for easy disassembly, observation and maintenance. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a diagram showing the positional relationship between the water inlet pipe and the positive pressure hole in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Cylinder body; 2. Top cover; 3. Bottom plate; 4. Inlet pipe; 5. Mounting plate; 6. Positive and negative pressure conversion valve body; 7. Screw; 8. Float; 9. Counterweight; 10. Outlet pipe; 11. Self-closing valve; 12. Sealing cover; 13. Positive pressure hole; 14. Negative pressure hole. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-2 As shown, an anti-corrosion automatic water discharge device includes a cylinder 1, a top cover 2, a bottom plate 3, and a positive / negative pressure conversion valve body 6. The top of the cylinder 1 is embeddedly connected to the top cover 2 and fixed with a Torx screw. A water inlet pipe 4 made of polyethylene is provided on the side wall of the top of the cylinder 1. A water inlet valve is connected to the water inlet pipe 4. A positive pressure hole 13 and a negative pressure hole 14 are provided on the side wall next to the water inlet pipe 4. The positive pressure hole 13 is connected to an air pipe, and the negative pressure hole 14 is connected to a negative pressure balance pipe. An installation plate 5 is welded to the upper part of the cylinder 1. The positive / negative pressure conversion valve body 6 is fixed on the installation plate 5. The positive / negative pressure conversion valve body 6 is provided with a first interface 61 and a second interface 62. The first interface 61 is higher than the second interface 62. The first interface 61 is connected to the positive pressure hole 13, and the second interface 62 is connected to the negative pressure hole 14. The valve core of the positive / negative pressure conversion valve body 6 is threadedly connected to a float 8 through a screw 7. A counterweight 9 is provided above the float 8. A water outlet pipe 10 is provided on the bottom side wall, and a self-closing valve 11 is connected to the water outlet pipe 10. A base plate 3 is hot-melt welded to the bottom of the cylinder 1. The base plate 3 is set at an inclination. The bottom of the cylinder 1 is connected to a sealing cover 12 below the base plate 3. The cylinder 1 is made of polyethylene material, the top cover 2 is made of acrylic transparent plate, and the valve core of the positive and negative pressure conversion valve body 6 is made of polymer material. The cylinder is made of polyethylene or polyvinyl chloride material, which has strong corrosion resistance. Combined with the sealing cover, it has strong corrosion resistance. The valve core of the positive and negative pressure conversion valve body is made of polymer material, which has high precision and ensures good sealing while ensuring smooth valve core sliding. The cylinder and the top cover are connected by embedded connection and screw fixation, which facilitates the replacement of the top cover and the valve core in the cylinder. The negative pressure hole and the positive pressure hole enable the water dispenser to operate stably in complex environments. The negative pressure hole can automatically drain the accumulated water and keep the pipeline unobstructed, while the positive pressure hole ensures that the water dispenser will not be damaged in high pressure environment.

Claims

1. A corrosion-resistant automatic water discharge device, comprising a cylinder, a top cover, and a bottom plate, characterized in that, It also includes a positive and negative pressure conversion valve body. The top of the cylinder is embeddedly connected to the top cover. The cylinder is made of corrosion-resistant material. A water inlet pipe is provided on the side wall of the top of the cylinder. The water inlet pipe is made of polyethylene material. A water inlet valve is connected to the water inlet pipe. A positive pressure hole and a negative pressure hole are opened on the side wall next to the water inlet pipe. The positive pressure hole is connected to an air pipe, and the negative pressure hole is connected to a negative pressure balance pipe. An installation plate is welded to the upper part of the cylinder. The positive and negative pressure conversion valve body is fixed on the installation plate. The positive and negative pressure conversion valve body is provided with a first interface and a second interface. The first interface is higher than the second interface. The first interface is connected to the positive pressure hole, and the second interface is connected to the negative pressure hole. The valve core of the positive and negative pressure conversion valve body is connected to a float ball through a screw thread. A counterweight is provided above the float ball. A water outlet pipe is provided on the side wall of the bottom of the cylinder. A self-closing valve is connected to the water outlet pipe. A base plate is hot-melt welded to the bottom of the cylinder. The base plate is inclined. A sealing cover is connected to the bottom of the cylinder below the base plate.

2. The corrosion-resistant automatic water discharge device according to claim 1, characterized in that, The cylinder is made of polyethylene or polyvinyl chloride.

3. The corrosion-resistant automatic water discharge device according to claim 1, characterized in that, The top cover is made of transparent acrylic sheet and is fixed with Torx screws.

4. The corrosion-resistant automatic water discharge device according to claim 1, characterized in that, The valve core of the positive and negative pressure switching valve body is made of polymer material.

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