What is the difference between automatic and manual metering pumps?

Shanghai Sunshine Pump Manufacturing Co., Ltd. is located in Jinshan Industrial Park, Shanghai, which is a well-known large-scale diversified enterprise integrating research, development, production, sales and service in China, with a registered capital of 80 million yuan. The leading products include: screw pumps, diaphragm pumps, submersible pumps, magnetic pumps, sewage pumps, chemical pumps, multistage pumps, self-priming pumps, gear oil pumps, metering pumps, sanitary pumps, vacuum pumps, submersible pumps, rotary lobe pumps and other categories.

The products have been recognized by various professional certifications and customers with superior performance and excellent quality. The company has a number of pump experts and all kinds of senior engineers, continuous development and manufacturing, upgraded products have come out every year. A metering pump is a device that is capable of accurately conveying liquids at a set flow rate and pressure.

It usually consists of a power system, a pump head, and a control system....

It is the difference in adjustment methods, one is to manually adjust the flow, and the other is to accept external signals to automatically adjust the flow.

The automatic control system of metering pump usually includes the following parts:

Sensor: It is used to detect the flow, pressure, temperature and other parameters of the medium conveyed by the metering pump, and convert it into an electrical signal and send it to the controller.

Controller: According to the signal fed back by the sensor, the working state of the metering pump is automatically adjusted to ensure the accuracy and stability of the conveyed medium.

Electrical actuator: according to the instructions of the controller, adjust the speed and conveying volume of the metering pump to ensure the accuracy and stability of the conveying medium.

Human-machine interface: provides an interactive interface between the controller and the user, allowing the user to set up, monitor and operate the controller.

Data processing system: It is used to record and process the operating data of metering pumps in order to analyze and evaluate their work efficiency and performance, as well as to carry out data traceability and manage the age of the metering pump. Huh.

The above are the main components of the automatic control system of metering pumps, and through the cooperation of these components, the precise control and automatic management of metering pumps can be realized.

Metering pump: a machine that can measure and transport liquids, also known as a quantitative pump and proportional pump, because it is often used in various types of chemical addition equipment, it is also called a dosing pump. Metering pumps are a type of pump that can meet the needs of a variety of stringent processes, and the flow rate can be infinitely adjustable in the range of 0-100%.

The metering pump is a corrosion-resistant, precise metering and conveying equipment for conveying and metering.

The metering pump is a kind of general-purpose mechanical equipment that conveys corrosion-resistant liquids in a stepless adjustment and quantity according to the requirements of the process, and the metering accuracy is 1%. According to the need, the combination of the same or different performance parameters can also be carried out to convey a variety of media at the same time in proportion, with a conveying temperature of -30 degrees Celsius to 350 degrees Celsius, and a viscosity of up to 2000 ms without solid particles. According to the corrosive nature of the liquid, different materials can be selected to meet the requirements of the overflow parts.

According to the different requirements of users, there are special manufacturing such as electronically controlled type, double-tone type, high temperature type, high viscosity type, suspended liquid type, etc. Metering pumps are widely used in petrochemical, pharmaceutical, catering, thermal power plants, nuclear power, environmental protection, mining, scientific research and production departments.

Metering pump is a special positive displacement pump that can meet the needs of various strict processes, and the flow rate can be steplessly adjusted in the range of 0-100%, and is used to transport liquids (especially corrosive liquids). Metering pumps are also called quantitative pumps or proportional pumps.

Some metering pumps are called quantitative pumps, proportional pumps, controllable flow pumps, etc.

A pump that feeds or pumps out a certain material according to a pre-selected brightness or time interval is called a metering pump. Metering pumps are reciprocating positive displacement pumps with stroke or reciprocating number adjustment. Metering pumps can generally be divided into two categories: plunger metering pumps and diaphragm metering pumps.

Metering pump, also known as quantitative pump and proportional pump, is an adjustable volumetric pump that can meet the needs of various strict process flows, and its flow rate can be steplessly adjusted in the range of 0-100%.

The metering pump is composed of three parts: power drive, fluid transportation and regulation control, which has the characteristics of keeping the discharge pressure constant when regulating the flow, and is widely used in sewage treatment in electroplating, circuit board and chemical industries. Quantitative injection of liquid medicine in factories, laboratories, etc.; Additives added in the production process of metal, textile and paper industries.

It depends on what you do with this pump. If you want to pump a small amount of water, you can choose a submersible pump.

1. Accuracy requirements, if the accuracy requirements are high, choose hydraulic or plunger type, if the accuracy requirements are generally selected mechanical diaphragm type (cheap), general sewage treatment choice mechanical diaphragm type.

2, If it is a general medium, it is enough to choose a PVC pump head, if the viscosity of the medium is relatively large, you need to choose a stainless steel pump head, if it is a strong acid, it is more appropriate to choose a PVDF pump head.

3. Pressure, that is, head, if the distance of dosing is relatively large, you need to choose a high pressure, 4, and finally choose the flow, YZM series metering pump.

In this way, after four steps, it is enough to choose the right metering pump.

As the name suggests, it is used for metering, and each pump has a metering function, which is equivalent to a flowmeter installed on the pump, which can accumulate the amount of fluid that passes through

Metering pumps are also called quantitative pumps or proportional pumps. It is a special positive displacement pump that can meet the needs of various strict processes, and the flow rate can be steplessly adjusted in the range of 0-100%, and is used to transport liquids (especially corrosive liquids). It is widely used in petrochemical, chemical, electric power, water treatment, pharmaceutical and other industrial processes for quantitative transportation of various chemical additives.

Metering pump belongs to positive displacement pump: vulgarly speaking, it is to use the eccentric mechanism to make the plunger (or piston) reciprocate to achieve the purpose of conveying the medium.

It is mainly used in process occasions that are not suitable for the selection of centrifugal pumps, and the main performance is low flow and high pressure.

Major manufacturers in the domestic market:

Domestic: Chongqing Pump Factory, Benxi, Depam, etc.;

Foreign investment: Miltonro, Riva, Pasfida, etc.