Piston type water decanter
Through the design of the piston decanter, the use of the piston rod and piston plate structure and the liquid level sensor, the sealing and decanting control problems of the decanter are solved, stable decanting and precise depth control are achieved, and the sewage treatment effect and equipment reliability are improved.
Patent Information
- Application Number
- CN202423148134.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing decanters have problems such as poor sealing, unstable decanting speed and inaccurate depth control, which affect the sewage treatment effect and the long-term reliable operation of the equipment.
A piston decanter was designed, which adopted a piston rod and piston plate structure, combined with a sealing rubber ring and a liquid level sensor. The electric push rod drove the piston mechanism to achieve stable decanting. The liquid level sensor and control system were used to accurately control the decanting depth and speed.
It achieves stable decanting speed and precise decanting depth control, ensures the quality and efficiency of sewage treatment, and improves the sealing and reliability of the equipment.
Smart Images
Figure CN223329112U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a piston-type decanter. Technical Background
[0002] The decanter is a key piece of equipment in the SBR process for wastewater treatment. Currently, common decanters suffer from unstable decanting rates and inaccurate decanting depth control, impacting treatment effectiveness and efficiency. Furthermore, existing decanters suffer from poor sealing during operation, which can lead to air intrusion and compromise decanting quality over time. Furthermore, insufficient drive stability can hinder the long-term reliability of the equipment. Utility Model Content
[0003] The purpose of the utility model is to solve the problems of poor sealing performance of decanters, unstable decanting speed, inaccurate depth control, etc., and provide a piston decanter.
[0004] In order to solve the above-mentioned shortcomings, the present invention adopts the following technical solutions:
[0005] A piston-type decanter comprises a decanter cylinder, a water outlet is arranged below the decanter cylinder, and a piston mechanism is arranged inside the decanter cylinder, the piston mechanism comprises a piston rod and a piston plate, the piston rod is slidingly connected to the piston rod, a sealing rubber ring is fixedly installed on the edge of the piston plate, a lifting transmission screw is fixedly connected above the piston rod, an electric push rod is connected above the lifting transmission screw, a transmission nut is arranged below the electric push rod, and the transmission nut is threadedly connected to the screw.
[0006] In the piston-type decanter, a plurality of liquid level sensors are installed on the outer wall of the decanter cylinder near the water surface, and the liquid level sensor terminals are connected to the control system. Beneficial effects
[0007] 1. The use of the utility model solves the problem of unstable water speed in the decanter, ensuring that a stable decanting speed can be provided under different working conditions to meet the requirements of the sewage treatment process.
[0008] 2. The utility model installs a liquid level sensor on the outer wall of the decanter close to the horizontal plane to overcome the defect of inaccurate decanting depth control, realize accurate control of the decanting depth, and thus improve the sewage treatment effect.
[0009] 3. The structural design of the piston plate and piston rod of the utility model ensures that the sealing rubber ring on the edge of the piston plate fits tightly with the inner wall of the decanter, achieving a good sealing effect and ensuring the quality of the decanter. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Attachment Figure 1 This is the main view of the utility model;
[0011] Attachment Figure 2 It is a partial view of the utility model.
[0012] In the figure: 1. decanter; 2. sealing rubber ring; 3. piston mechanism; 4. electric push rod; 5. lifting transmission screw; 6. piston plate; 7. piston rod; 8. transmission nut. DETAILED DESCRIPTION
[0013] Reference Figure 1-2 A piston-type decanter comprises a decanter cylinder 1, a water outlet is arranged at the bottom of the decanter cylinder, and a piston mechanism 3 is arranged inside, the piston mechanism comprises a piston rod 7 and a piston plate 6, the piston rod is slidably connected to the piston rod, a sealing rubber ring 2 is fixedly installed on the edge of the piston plate, a lifting transmission screw 5 is fixedly connected to the top of the piston rod, an electric push rod 4 is connected to the top of the lifting transmission screw, a transmission nut 8 is arranged at the bottom of the electric push rod, and the transmission nut is threadedly connected to the screw.
[0014] The sealing rubber ring can achieve a good sealing effect and should ensure that it fits tightly with the inner wall of the decanter to ensure the quality of the decanter.
[0015] The electric push rod provides a stable and reliable driving force for the piston mechanism in the decanter.
[0016] In the piston-type decanter, a plurality of liquid level sensors are installed on the outer wall of the decanter cylinder near the water surface, and the liquid level sensor terminals are connected to the control system.
[0017] The working content of the liquid level sensor is to accurately detect the change of liquid level and provide accurate data for the control system.
[0018] The control system accurately receives signals from the liquid level sensor and controls the speed and stroke of the drive unit according to a pre-set program, achieving precise decanting. It also features fault diagnosis and alarm functions to ensure safe operation of the equipment.
[0019] Working principle:
[0020] During the wastewater treatment process, as the decanter operates, a level sensor monitors the wastewater level in real time. The control system sends commands to the drive unit based on a pre-set program and level information from the level sensor. When the electric actuator begins operating, it pushes or pulls the piston mechanism up and down within the decanter. As the piston mechanism moves upward, negative pressure forms below it. This pressure differential forces wastewater into the decanter through the lower opening, where it gradually rises as the piston mechanism moves upward. A rubber sealing ring installed around the edge of the piston plate effectively prevents air from entering, ensuring smooth wastewater entry into the decanter. When the piston mechanism reaches the preset decanting depth, the drive unit stops, maintaining the piston's position and allowing wastewater to continue draining through the decanter. During the decanting process, the control system continuously receives signals from the level sensor to precisely control the decanting depth and speed. When the set decanting time or level is reached, the drive unit activates again, driving the piston mechanism downward and closing the upper opening of the decanter, completing the decanting operation.
Claims
1. A piston type water decanter, characterized in that: It consists of a water decanting cylinder. An outlet is provided below the water decanting cylinder, and a piston mechanism is arranged inside. The piston mechanism includes a piston rod and a piston plate. The piston rod is slidably connected to the piston rod. A sealing rubber ring is fixedly installed on the edge of the piston plate. The upper part of the piston rod is fixedly connected to a lifting transmission screw rod. The upper part of the lifting transmission screw rod is connected to an electric push rod. A transmission nut is arranged below the electric push rod, and the transmission nut is threadedly connected to the screw rod.
2. The piston type water decanter according to claim 1, wherein: A plurality of liquid level sensors are installed on the outer wall of the water decanting cylinder near the water surface, and the terminals of the liquid level sensors are connected to a control system.