How to use electric storage water heater

 1. Water is passed. When using for the first time, pay attention to the hot water valve or hot water tap of the cold water regulating valve, so that the air can be discharged when water is injected. Then, the tap water valve leading to the electric storage water heater is opened to inject water into the water heater, but care must be taken not to drive too much to cause a large impact. Need to wait for the hot water tap or the nozzle to have water flowing out, indicating that the water heater has been filled with water, and then the hot water outlet valve can be closed.

 

  2, power on, check the water supply is normal, set the required water temperature, then plug the power plug into the socket, turn on the power.

  3. After heating, after turning on the circuit, turn on the power switch of the water heater. The heating light is on, indicating normal, and heating starts. The heating lamp is extinguished, the heat preservation lamp is on, indicating that the heating is stopped, and the water temperature can be used as required.

  4, hot water for use, for the use, you can adjust the mixing water temperature, that is, adjust the flow of hot water and cold water.

  When adjusting the water temperature, try to test the temperature by hand, do not directly rush on the body to avoid burns. The enclosed water heater allows continuous operation and automatic temperature control, and the home can be selected as needed. If not needed, the temperature control is not easy to adjust too high to save energy and extend the life of the water heater.

How to maintain vertical vacuum packaging machines

    With the development of the economy, the market for vertical vacuum packaging machines is now expanding and expanding. Vacuum packaging machines continue to introduce new technologies and join the production line, and the degree of automation is getting higher and higher.

 

Vacuum packaging machines use a large number of inflatable packaging to replace the previous vacuum packaging, combining the three aspects of the inflatable packaging machine, packaging materials and inflatable components, and in the control technology, more choices of microelectronics and computer technology.

    Therefore, no matter what equipment is used, relevant maintenance and maintenance are required during use to extend its service life. Vacuum packaging machines are no exception. For vacuum pump oil, it must be kept clear and bright every time it is used. It should not appear turbid or foaming. When the oil is statically precipitated, there will be no milky white matter. If it is, it means that foreign matter enters. Replace with new oil.

The oil level and oil color must be checked once a week. If the oil level is lower than the minimum mark, it means that it needs to be refueled. If the oil level exceeds the maximum mark, some oil needs to be drained, if it is diluted due to too much condensate. For vacuum pump oil, all vacuum pump oil needs to be replaced, and the gas ballast valve can be replaced if necessary.

The exhaust filter needs to be replaced every year. Generally, it can be cleaned with compressed air. The dirt or dust in the vacuum pump needs to be cleaned every six months. The fan wheel, cooling fins, ventilation grille and fan hood need to be cleaned. Compressed air cleaning is recommended.
      The vacuum pump oil should also be replaced in time, and the exhaust filter and the intake filter must be inspected once a month.

Office swivel chair and human health

The main basis of the office swivel chair design is the more natural posture of the human body when sitting, it has many advantages. When a person stands, the joints of the ankles, knees, buttocks and spine of the human body are subjected to the static muscle force to maintain the standing state;

When people are sitting, they can eliminate these muscle strength, reduce body consumption and eliminate fatigue. Sitting posture is more conducive to blood circulation than standing posture. When standing, blood and body fluids will accumulate in lower limbs; while sitting, muscle tissue is relaxed, so that the blood static pressure in the blood vessels of the legs is reduced, and the resistance of blood flowing back to the heart is reduced.

 

Sitting posture also helps to maintain the stability of the body, which is more suitable for fine work. In the case of foot operation, the sitting posture keeps the body in a stable posture, which is conducive to the work, and thus the most commonly used working posture when sitting.
Most office workers, mental workers, and some manual workers now work in a sitting position. As technology advances, more and more manual workers will also work in a sitting position. But there are still many shortcomings in sitting. Limiting the range of human activities, especially in situations where upper limb output is required, often requires standing work, and frequent sit-ups can lead to waste. Maintaining sitting posture for a long time will also affect human health, so the seat design should fully consider the physiological impact on people, and according to the ergonomic design, it can alleviate the sitting fatigue.

 

How does Electric Wheelchairs care for the battery?

Experiments show that when there are several batteries in a group of batteries of Electric Wheelchairs, the capacity of the battery will decrease or the internal resistance will become high. The performance of the whole battery will deteriorate rapidly in a short time, which will cause the whole battery to be scrapped. A new battery pack needs to be replaced.

 

From this perspective, the life of the entire battery depends on the battery with the worst performance. For hybrid electric wheelchairs, the replacement cost of the battery pack is the main cost of hybrid electric wheelchair operation. In order to reduce the running cost of the hybrid electric wheelchair, it is necessary to effectively improve the inconsistency of the battery pack, improve the performance of the battery pack, and extend the battery pack. Service life.

In order to make the electric wheelchair better service, it is necessary to ensure its safe operation. The electric wheelchair is mainly powered by the battery. It is necessary to do a uniform balance of charge and discharge of the single battery, so that the battery pack can be largely guaranteed. The parameters of the single battery are the same, which can greatly extend the service life of the battery pack, thereby improving the overall performance of the battery pack, thereby minimizing the burden on the user to maintain the battery and minimizing the pre-emptive rate of the battery pack. Reduce the cost of using hybrid vehicles.

How to install and debug the chain hoist electric limiter?

The chain hoist electric limiter device is generally composed of a connecting rod, a positioning clip, a rope guide, and a limiter. The fire stop limiter can effectively prevent the hook from exceeding the rising limit position, thereby avoiding the topping and the wire rope being blocked. Pulling off faults, etc., thereby improving the safety of the device. However, if the installation is wrong, you can not play the safety protection function of the fire stop limiter. How should you install and debug the electric hoist limiter?

 

First, the screws on the bumper block should be loosened. The bumper blocks are placed on both sides of the rope guide card, so that the card can freely move the bumper. The starter motor starts to lift, and the upper limit of the card push can also be moved by the block.

When it rises to 150mm~50mm from the lower edge of the reel housing, it will stop rising. When the button is lowered, the guide will move about 10mm, stop, move the upper limit block closer to the card, and start. Tighten the screws.

Then the adjustment of the lower limit position is the same as above, and the direction is opposite. It is necessary to ensure that the hook is at the lowest position, and more than 3 loops of wire rope are left on the reel. After the adjustment, you can test the crane several times at no load to verify whether the upper and lower limits meet the requirements.

The limiter is an insurance mechanism that restricts the wire rope from being raised or lowered within a certain range. When the wire rope guide contacts the fire stop limiter, the electric hoist will stop automatically.

The fire stop limiter is a kind of travel switch. The fire break is to cut off the power supply. The travel switch only controls the coil of the contactor. If the contactor itself has a problem, the travel switch will not be protected. The fire stop limiter is mechanically protected and can be protected if the wiring is correct.