The company's flagship product - water ring vacuum pump

 

The company specializes in the development and production of water ring vacuum pumps. As a well-known enterprise in the industry, the company has also put in a lot of effort in product improvement and new product development. In order to establish a foothold in the constantly changing market, it is important to have product quality and corporate philosophy. If the product is done well, the enterprise is not afraid of competition, and good products will have a market. This is an unchanging truth. Price competition is only a temporary market phenomenon, and good products in the hearts of users can be recognized.

The company has always believed in the production of water ring vacuum pumps, which has been an important product of the company. Among many vacuum enterprises, the goal of refining and strengthening products has always been pursued. This goal is not for competitors in the same industry, but to truly achieve results. The market development space for water ring pumps is very large, and the company realized this early on. Therefore, it is required to achieve the best technical indicators, operational performance, and other aspects of the product. Producing qualified products is the embodiment of the company's brand.

The company not only does a good job in internal management and production, but also promotes the market of water ring vacuum pumps more effectively. The demand for products is increasing, and the company's production tasks are also being accelerated. Product orders are increasing day by day, which is the benefit that product quality brings to the enterprise.

Principle of positive pressure leakage testing for lithium batteries

 

Charge and pressure the cavity where the battery is placed, and visually inspect the surface of the battery for bulges to determine if the battery is leaking. According to relevant information, when using the positive pressure method for leak detection, it is necessary to fill the sealed chamber inside the tested product with helium gas at a pressure higher than one atmosphere. When there is a leak on the surface of the tested product, helium gas will enter the surrounding atmosphere through the leak hole and then use a suction gun to detect the increase in helium concentration in the surrounding atmosphere of the tested product, thereby achieving leak measurement of the tested product.

How to improve the detection accuracy of helium mass spectrometer leak detector? Analysis of influencing factors

The detection accuracy of helium mass spectrometer leak detector is crucial, as it directly affects the accuracy and efficiency of detection. However, there are many factors that can affect the detection accuracy of helium mass spectrometer leak detectors, and the following are some of the main factors:

Firstly, due to the influence of testing pressure, different workpieces have varying sensitivities to testing pressure. Generally speaking, for parts with high porosity, the impact of test pressure on leakage rate is greater, while for parts with low porosity, the impact is relatively small. In addition, with the increase of testing pressure, it will also bring many other problems, such as temperature changes and long required stabilization time. Therefore, we suggest conducting leak detection within a certain pressure range for specific workpieces, and then selecting a lower pressure that meets the testing requirements as the final testing pressure. At the same time, the selection of leak testing pressure for the leak testing machine must fully consider the bearing capacity of each mechanism of the tested part for the maximum test pressure.

Secondly, due to the influence of the detection volume, if the detection volume increases, the corresponding pressure reduction rate will be slower, which requires longer time to complete the measurement. In some specific cases, if the measurement volume cannot be reduced, the required accuracy and sensitivity may not be achieved.

Thirdly, the impact of stabilization time on detection is also an important factor. During the inflation process, compressed air entering a sealed container will cause a series of thermodynamic and kinetic changes. When a certain volume of compressed air is rapidly moved to a closed container, its pressure will decrease. When measuring at this time, this pressure change will be considered as a pressure change caused by leakage, which will affect the accuracy of the measurement results. This' inflation effect 'is influenced by inflation pressure, test volume, and test piece material. When the inflation pressure or test volume increases, the pressure decrease caused by inflation becomes apparent. One solution to this problem is to add a stabilization period between inflation and measurement to eliminate this effect.

Finally, temperature also has a significant impact on detection. For gases in sealed containers, as the temperature increases, the internal pressure also increases. Therefore, temperature changes are an important factor affecting pressure changes. It is generally estimated that every 1 ℃ change in temperature will cause a pressure change of 0.36% of the measured pressure value. Therefore, as the testing pressure increases, the influence of temperature will become more pronounced.

In the process of using a helium mass spectrometer leak detector, if we can pay attention to the four influencing factors and related details mentioned above, our detection work will be more efficient and the detection results will be more accurate. The helium mass spectrometer leak detector is an advanced multi-purpose and highly reliable leak detector in the industry, suitable for airtightness testing in various fields.

How to isolate vibration for self priming pumps?

The installation of self priming pumps, especially newly installed pumps, must take vibration isolation measures and avoid laziness, otherwise significant vibration and noise may occur during use. When running a self priming pump, the noise is loud, which can damage the equipment and also cause noise pollution. Therefore, it is necessary to do a good job of vibration isolation. How can self priming pumps achieve effective vibration isolation?
1、 The vibration isolation components should be symmetrically arranged along the central axis of the self priming pump unit. The plane layout of rubber vibration isolation pads can be arranged in a clockwise or counterclockwise direction.
2、 When the vibration isolation components of the unit adopt six support points, four of them should be arranged at the four corners of the inert block or steel frame, and the other two should be set on the long side line and adjusted in position to ensure that the compression deformation of the vibration isolation components is as consistent as possible.
3、 When installing rubber isolation pads or damping spring isolators for vibration isolation of self priming pump units, generally, there is no need to bond or fix the rubber isolation pads and damping spring isolators to the ground, as well as to the inert block or steel frame.
4、 When rubber isolators are used for vibration isolation installation of unsealed self priming pump units, a steel frame should be installed under the base of the water pump unit and anchored installation should be adopted; The steel frame and rubber isolator should be fixed with bolts. Install anchor bolts in the ground or floor, and the rubber vibration isolator is fixed to the ground or floor through the anchor bolts.
5、 The edge line of the rubber isolation pad shall not exceed the edge line of the inert block; The supporting area of the steel frame should not be less than the supporting area of the top of the vibration isolation element.
6、 The rubber isolation pad is arranged in a single layer, and when the frequency ratio cannot meet the requirements, it can be arranged in multiple layers in series, but the number of isolation pad layers should not exceed five.
7、 When the rubber vibration isolation pad is set in multiple layers in series, each layer of vibration isolation pad is separated by a galvanized steel plate with a thickness of not less than 4mm. The steel plate should be flat, and the vibration isolation pad and steel plate should be bonded with adhesive. The flat size of the galvanized steel plate should be 10mm larger than each end of the rubber vibration isolation pad. The rubber vibration isolation pads bonded to the upper and lower layers of galvanized steel plates should be staggered.
8、 Before installing the ZXP stainless steel self priming pump during construction, it should be checked in a timely manner. During installation, the static compression deformation of the isolation element should not exceed the allowable value. Moreover, the vibration isolation components of the unit should avoid contact with substances such as acids, alkalis, and organic solvents.
Attention should be paid to these aspects in the design, manufacturing, and maintenance of self priming pumps. Only by following the requirements can vibration and noise be reduced, and equipment damage be reduced. If it cannot be resolved, you can consult us.

Why vacuum coating should be coated under vacuum conditions?

How can a self priming pump meet the standards?

Standard self priming pumps are being used in an increasing number of operating conditions, and only those that meet the following conditions are truly self priming pumps:
1. The self priming pump is a vertical self priming pump, with the motor and self priming pump coaxial.
2. All motors must have dedicated motors, and the entire rotor of the self priming pump should be supported by the bearings of the motor.
3. The original model of the automatic control self priming pump was WFB, but later on, other WFZB, WZB, and YWB were all modified based on the model of the old automatic control self priming pump.
4. The flow rate and head of the self priming pump should be within a range value. When the flow rate is high, the head of the self priming pump is small. When the head is high, the flow rate of the self priming pump is small.
5. The performance of the self priming pump can be adjusted using a valve, and the flow and head of the self priming pump can be controlled by the switch size of the valve.
6. When used at temperatures below 40 degrees Celsius, it does not affect the performance of the self priming pump.
7. The self-control self priming pump should have reliable rust prevention measures, the surface should be polished smooth, the welding should have no cracks, and collision should not scratch.
8. It is necessary to have an electromagnetic control valve, and no self priming pump is said to have no air control valve.

The Effect of Target Materials on Vacuum Coating

Prospects and directions for improvement of chemical pumps

 

The characteristics of chemical pumps should be: high quality, high reliability, and high environmental performance; While completing the task of transporting chemical media, it is also beneficial for the physical health of workers; Low expected service life cost; It can be organically integrated with the entire set of chemical equipment into a whole. However, in the chemical production process, various specific usage conditions and purposes have put forward various requirements for the manufacturing of chemical pumps.
The prominent feature of mechanical products used in the chemical industry is that the performance and requirements of mechanical products vary with the type and nature of the chemical medium being transported. Although the medium mentioned here sometimes also refers to water, oil, or other non hazardous substances; However, in most cases, chemical media refer to some very "terrifying" chemical raw materials; For example, some media with serious hazards (toxic, corrosive, and flammable media); Especially for media that are prone to chemical reactions, corrosive, and erosive, or solid or gaseous media containing the aforementioned components.
Changes in chemical composition and chemical element ratios in diverse chemical media can lead to changes in the properties of the chemical media; Causing an increase in the concentration of chemical media or having special flow properties (such as diffusive media, polymer solutions, etc.). Therefore, particularly strict quality requirements are often put forward for the purity of chemical media (GMP, polymers, electrolytes, etc.), which can be easily achieved through suitable chemical pumps. The diversity of chemical media has derived the diversity of requirements for chemical pumps. This makes it difficult for the chemical pump standard system to become a simple standard system. Compared to other fields, such as home appliances, home heating, water supply, drainage, etc., as well as chemical refining or automotive manufacturing, standardization has reached a considerable level not only in product production but also in product use. In chemical production enterprises, the standardization of chemical pumps has encountered obstacles in terms of technology and economy.
Let's talk about the direction of optimizing and improving chemical pumps below:
Firstly, standardization is very helpful and meaningful for the production and use of chemical pumps. But from the perspective of life cycle costs, what should economic standardization look like? Is it a detailed standardized long-term optimization calculation based on various specific usage situations? Or is it a rough standardized calculation? When will the hindrance of standardized investments that can only be recovered over a long period of time due to the adoption of new technologies and the development of new products end? How can we achieve a unified understanding of the standards for chemical pumps on both sides without harming the interests of either the chemical pump manufacturer or the chemical pump user? These questions can only be answered by strengthening dialogue between chemical pump users, industry associations, and chemical pump manufacturers. Possible solutions are: from the perspective of users, such as establishing long-term strategic partnerships with suppliers; Establish different levels of standardization within clearly defined levels (such as structural types, suppliers, series, materials, configuration methods, etc.) and integrated modular structures for chemical pumps. But what is important is still the issue of "service life cost".

How To Choose The Sealing Ring For Vacuum Pumps? What Materials Are Commonly Use

Daily maintenance of stainless steel multistage centrifugal pump

 

Stainless steel multi-stage centrifugal pump can be used for conveying different media, especially corrosive media. However, after long-term use, the centrifugal pump will inevitably have some failures. Therefore, it is necessary to carry out necessary maintenance during the use of the centrifugal pump. Now let's follow Zoomlion pump to understand the daily maintenance of stainless steel multi-stage centrifugal pump.
The daily maintenance of stainless steel multistage centrifugal pump is to check whether the running sound of the centrifugal pump is normal, whether there is vibration and leakage every day. If there is a problem with the centrifugal pump, it should be handled in time. In daily use, it is also necessary to keep the stainless steel multistage centrifugal pump clean, dry, free of oil and leakage.
For the daily maintenance of stainless steel multistage centrifugal pump, it is also necessary to check whether the coupling protection cover, foundation and other screws are fastened and loose. And whether the voltage of the centrifugal pump is within the specified range, whether the appearance motor wiring and grounding are normal, etc. if the wiring of the centrifugal pump is found to be faulty, it is necessary to immediately stop using and repair the centrifugal pump.
Maintain the stainless steel multistage centrifugal pump, and check whether the motor steering is correct. When the centrifugal pump operates normally, open the outlet pressure gauge and the inlet vacuum pump to gradually open the gate valve and check the motor load at the same time.
The above is the daily maintenance method of stainless steel multi-stage centrifugal pump summarized by Xiaobian for you. I believe you will have a certain understanding of the maintenance of stainless steel multi-stage centrifugal pump after reading it.

vacuum pump in tobacco industry of application