How to choose a small acid resistant pump? How to select an acid and alkali resistant submerged pump

The ** of corrosion-resistant diaphragm pumps is about one or two thousand yuan per unit, the cheap ones are hundreds of yuan, and the expensive ones are several thousand yuan. The best of corrosion-resistant diaphragm pumps is affected by many aspects, such as brand, category, specification, market, etc. Before choosing to buy, it is necessary to understand and compare in many aspects.

Diaphragm pumps, also known as control pumps, are the main type of actuators, which change the fluid flow rate by receiving the control signal output from the modulation unit and using power operation. Diaphragm pumps generally consist of actuators and valves. Using compressed air as the power source, it can be used to absorb all kinds of corrosive liquids, liquids with particles, and high-viscosity, volatile, flammable and highly toxic liquids.

Hello, the selection of anti-corrosion pumps, to take into account the parameter requirements, to determine the model specifications, through the flow, head, the acidity and alkalinity of the conveyed liquid, etc., the anti-corrosion pump needs to use anti-corrosion materials, such as Sanchuan Hong anti-corrosion pump, using plastic material injection molding, according to the chemical properties of the conveyed liquid or particles to choose different materials, acid resistance, alkali resistance. It can resist most chemicals and is suitable for all kinds of acid and alkali liquid transportation operations. Applicable temperature:

FRPP CFRPP-85 or less, PVDF-90 or less, depending on various chemical properties. The plastic injection molded base is lightweight and corrosion-resistant. Just ask Hiroshi Mikawa for more constructive advice.

The pump has a full range of models and stable performance.

Meibao environmental protection small acid-resistant pump selection case:

Actual flow rate: 14m h

Actual head: 7m

Water analysis: acid-containing wastewater and other comprehensive wastewater (pH=4).

Water temperature: 60

Structure: centrifugal type.

Application process: sulfuric acid wastewater and other comprehensive wastewater transportation and recirculating dosing.

Customer needs: corrosion resistance, acid and alkali resistance can be used with filters.

Medium concentration: 30% sulfuric acid.

1. Confirm the pump type.

According to the customer's on-site process to determine the type of pump: the customer needs the pump to be used in the acid wastewater and other comprehensive wastewater transportation cycle dosing, first of all, we can determine that the water pumps that our company can use are: Meibao MK acid and alkali resistant self-priming pump, MSH leak-free magnetic pump and MC acid and alkali resistant chemical pump.

2. Determine the material of the pump.

Determine the material of the pump according to the medium type, temperature and concentration: the water body at the customer's site is mainly acid-containing wastewater and other comprehensive wastewater (pH=4); The temperature is 60 and the main medium is 30% sulfuric acid.

3. Determine the power of the water pump.

4. Determine the specific model.

According to the customer's other requirements to determine the specific model: the customer requires the water pump to be corrosion-resistant and can be used with a filter. Combined with material, power, and technology, we recommend to customers:

It can be idling acid and alkali resistant self-priming pump. The specific model is: MK-40022NBH-CCH, and the material is:

FRPP, the power is:.

Attention should be paid to the following aspects when selecting acid-resistant or Zen lye pumps:

1. The process flow of the pump.

The basic parameters such as flow rate and head of the pump should be reasonably determined according to the process requirements. It is generally believed that normal wear and tear of the pump and changes in speed may cause a decrease in head. Therefore, when selecting a pump, the head of the pump can have a margin of 2 percent to 5 percent, but not more than 10 percent.

The basic principle is to ensure that the pump operates within the high efficiency range. In addition, by calculating the cavitation allowance of the unit, information on the inlet status of the corrosion-resistant pump can be obtained.

2. The corrosiveness of the medium and the selection of materials.

There are many types of chemical media with different properties, which require accurate characteristic parameters, especially corrosivity, concentration, volatility, vaporization pressure, viscosity, density, etc. These properties are closely related to the choice of materials, not only metallic materials, but also non-metallic materials and media.

3. Medium temperature.

Temperature has a great influence on the structure selection of chemical pumps, such as the support method of the corrosion-resistant dust pump body, the design of the cooling (or insulation) system, etc., which are closely related to the temperature of the conveyed medium.

4. Selection of spindle seal and its auxiliary system.

According to the analysis of the actual case disturbance case, the proportion of faulty units caused by the spindle seal is very high, and it can reach 30% and 40% in some cases, so the selection of the spindle seal is very important.

Acid and alkali resistant submerged pump is a special chemical pump, which is widely used in the field of corrosive media transportation, such as chemical, pharmaceutical, electric power, metallurgy, petroleum and other industries. When choosing a type of side-by-side, you need to pay attention to the following aspects:

Consider the nature of the conveying medium.

The selection of acid and alkali resistant submerged pump first needs to consider the nature of the conveying medium, including the concentration of the leakage ear, temperature, specific gravity, viscosity, solid particle content, etc. Different conveying media have different requirements for the material and structure of the pump.

Determine the flow rate and head of the pump.

Determine the flow rate and head of the pump according to the demand to ensure that the pump can meet the actual conveying demand. At the same time, the operating efficiency of the pump needs to be considered to ensure that the requirements can be met with minimal energy consumption.

Select the appropriate pump material.

It is important to select the appropriate pump material according to the nature of the medium being conveyed. At present, the commonly used materials of acid and alkali resistant submerged pumps are stainless steel, high manganese steel, ceramics, etc., of which stainless steel is usually used in acidic media, high manganese steel is usually used in alkaline media, and ceramics can be used in various strong acid and alkaline media.

Choose the right sealing.

The sealing method is one of the important factors for the selection of acid and alkali resistant submerged pumps, and different media have different requirements for the selection of sealing methods. When choosing a sealing method, it is necessary to consider the nature of the medium, temperature, pressure, viscosity and other factors, as well as the performance and reliability of the pump.

Focus on the operational reliability of the pump.

In the chemical industry, the operational reliability of the pump is crucial, so it is necessary to choose a reliable submerged pump with reliable quality and high brand recognition. In addition, regular maintenance and maintenance are also required during use to prolong the service life of the pump.

Attention** and after-sales service.

** and after-sales service are also one of the important factors in the selection of acid and alkali resistant submerged pumps. On the premise of meeting performance needs, it is necessary to choose a reasonable one, and at the same time, it is also necessary to pay attention to after-sales service, including repair and maintenance services, accessories** and technical support.

Hello I think the following points should be considered when selecting an acid and alkali resistant vertical pump, I hope it will be helpful to you.

1. You should choose a pump with high efficiency, low noise and energy saving, and it is strictly forbidden to choose eliminated products, and you should know the digital size of the flow head you need, the selection of motor power, etc.

2. When there is no regulating facility in the water supply pipe network, it is advisable to use the speed-regulating pump unit or the rated speed pump unit to run the water supply. The larger water output of the pump set should not be less than the design flow rate of the community water supply, and should be checked by fire protection conditions.

3. The number of pumps should be minimized when choosing the lifting pump of the water tank and water tower, and it is advisable to use one and one to prepare; When a single pump can meet the requirements, it is not appropriate to use multiple parallel connections; If it is necessary to use multiple parallel operation or large and small pumps, the models and numbers should not be too much, and the models should generally not exceed two types, and the head range of the pumps should be similar; When running in parallel, each pump should still be operating in the high area.

4. Valves, check valves and pressure gauges should be installed on the outlet pipe of each vertical pump; When the pump draws water directly from the outdoor water supply network, valves, check valves and pressure gauges should be installed on the suction pipe, and a bypass pipe with valves should be set around the pump.

5. Choose the material according to the liquid to be conveyed, plastic or stainless steel.

Personally, I think I will choose an acid and alkali resistant magnetic pump.

1. Magnetic pump material:

1. PP is called polypropylene, with a temperature resistance of less than 90, and the corrosion resistance is not as strong as PVDF, and it can resist strong acids and alkalis. FRPP is called glass fiber reinforced polypropylene, which can withstand high temperature of 75 degrees.

2. PVDF is called polyvinylidene fluoride, the appearance is translucent or white, is a corrosion-resistant substance, long-term use is -40 150, the common temperature is 90, the working temperature can reach 110 degrees, with good chemical corrosion resistance, high temperature resistance, oxidation resistance, radiation resistance.

Second, the performance characteristics of the magnetic pump:

1. The plastic material is used for refraction molding, and different pump materials are selected according to the on-site conveying medium, which is acid-alkali resistant and corrosion-resistant.

2. The inner magnet dissipates heat, and the heat-insulating structure uses heat dissipation materials and heat-resistant structures to reduce frictional heat and improve the anti-rotation ability.

3. The plastic reflects the molded base, which is light and corrosion-resistant.

4. The permanent magnet magnet is used to improve the rotation efficiency of the magnetic pump.

3. Engineering plastic magnetic pumps are widely used in electroplating, photovoltaics, circuit boards, diamond wires and other wastewater transportation.

The pump used in the experimental room is commonly used in the laboratory because of the needs of research and development, and some laboratories will choose some liquid solutions with acid and alkaline treatment processes. The magnetic drive pump just has the performance advantages of no shaft seal and no leakage suppression, and it is magnetic.

But if the technology is strong, the monthly salary will be higher, take a closer look! How much is the monthly salary of new energy vehicle technology in China compared to the more well-known foreign capital in the automobile manufacturing factory, the salary of a grassroots reform engineer is about 5000 15000, and the supervisor can go to about 20,000.

Laboratory oil-free vacuum pump is a new type of laboratory vacuum pump that can be used by plugging in, which is different from traditional laboratory oil pumps and water pumps, which need to rely on Hongtan and other media to talk about the new laboratory vacuum pump products that can workIt has low noise and low vibration.

It is recommended to choose an acid-alkali resistant self-priming pump 1, which can be idling and will not burn out the motor, and can be achieved by idling acid-alkali resistant self-priming pump.

It can be used to use MD type horizontal multistage pump, MDP type self-balancing multistage pump, and the material is wear-resistant and corrosion-resistant.

MDP type self-leveling multistage pump with bending scale.

Hydrochloric acid pump, hydrochloric acid has high corrosiveness, colorless and transparent, and has a pungent odor. The types of hydrochloric acid pumps used vary from process to process and from one generation to another. The main models of hydrochloric acid pump are hydrochloric acid conveying self-priming pump, hydrochloric acid discharge magnetic pump, hydrochloric acid dosing pump, hydrochloric acid diaphragm pump, etc.

The use of hydrochloric acid self-priming transfer pump in the conveying and lifting process; the use of hydrochloric acid magnetic discharge pumps in the discharging process; use of hydrochloric acid dosing pumps in the dosing process; If the hydrochloric acid contains a small amount of impurities, use the hydrochloric acid pneumatic diaphragm pump. Meibao hydrochloric acid pump show:

<> small hydrochloric acid pump model of Meibao environmental protection:

Acid-resistant metering pump is used for sewage treatment quantitative dosing agent, the rapid development of industry, sewage discharge has led to serious pollution of water resources and living environment, in order to prevent the deterioration of this phenomenon, it is necessary to use flocculants, coagulants, defoamers, redox agents, microbial flocculants, etc. to treat sewage. Acid-resistant metering pumps play an important role in this process.

Acid-resistant metering pump display:

1. The driving mode adopted by Meibao acid-resistant metering pump is that the motor drives the flow rate up to 0-100L H, and the pressure can be controlled and adjusted manually by hand, and the flow can be adjusted in the range of 0-100 regardless of whether the pump is running or not.

3. Material of the conveying liquid part: PP PVC Teflon SUS, flange connection.

Acid-resistant metering pump model parameters: