The main cause of the loss of heating and hot water in China is that the heating and hot water pipelines still have a large number of original and backward gas collecting tanks and manual exhaust gate valves.
There are three factors that will inevitably enter the air in the heating and hot water pipeline: 1. The circulating water pump will bring in air when it is working; 2. When the boiler or pump is stopped, the pipeline will generate negative pressure, and the air will be inhaled; The boiler should be continuously replenished with cold water while it is running, and the cold water will separate the air during the heating process.
The exhaust valve is an indispensable device for preventing the "air resistance" of the heating and hot water pipeline and ensuring the normal circulation of the hot water. However, this manual exhaust valve is the only switch in the pipeline that can both vent and release hot water. For the convenience of human operation, this gate valve is not installed at the outlet of the top gas collection tank, but is connected from the outlet to a bathroom or kitchen, and the gate valve is installed on the wash basin or inserted into the drain drain of the sewer. . Therefore, the manual exhaust is actually pushed out by the pressure difference by releasing the water until the hot water is discharged. The normal running wind should close the valve immediately after releasing the hot water, and the running wind will end. In fact, the length of the water discharge time is something that the heating management department cannot control, and the household can only make the final decision.
General residential building heating, one unit and one circuit, each circuit needs to install 1~2 exhaust valves, and each building is different according to the unit, which is a big number, even if it is normal manual running wind every day. Loss of a large amount of hot water, not to mention the valve opening time can not be managed, let it flow, sometimes there is no one in the household with manual running wind on the top floor, in order to avoid the contradiction between the neighborhood due to running wind, simply open the manual gate valve to become 24h long Running water. Manual exhaust is the only drain valve that is allowed to exist in plumbing pipes. It is illegal to discharge water in other parts. It is not allowed by the heating regulations. Until now, there is no way to control the opening time of the manual exhaust valve. It is doubtful that the manual exhaust valve is the main channel and cause of heat and water loss.
The most effective way to prevent the loss of heating and hot water is to eliminate manual exhaust. Select high-quality, really easy-to-use automatic exhaust valves, which have been widely used in many developed countries. It differs from the manual exhaust gate valve in that it does not require artificial running wind. The installation position must be at the gas collection point of the pipeline. The so-called gas gathering point is the highest point of the top water supply horizontal pipe. The inclination requirement does not allow partial depression and bending. When the air enters the valve body, the valve will automatically open. When the air is removed, the water level rises. It will automatically close the valve, the hot water can not overflow, and the manual row is eliminated. If the gas is not timely, it is easy to form a "gas block" that affects the heating effect and causes a large loss of hot water. The application of the automatic exhaust valve solves the cumbersome labor of manual exhaust, completely eliminates the only water discharge port on the heating pipe, and keeps the heat circuit unblocked when the exhaust gas is running in time, effectively saving energy and water resources due to no water discharge.
Single Wheel Concrete Pile Spinning/Centrifugal Machine:
Concrete Pile Spinning/Centrifugal Machine is mainly apply to produce High strength centrifugal technology concrete spun piles of difference diameter and length, Prestressed Reinforced concrete pole(SPC pole) by spinning formed. According to customer's effeciency request, there are Single wheel spinning machine and Double wheel spinning machine at customer's option, it is equipped with a stepless speed-variation motor and a control panel, it works smoothly and its speeder is of wide-range. Its box base is sturdy and durable and easy for installation.
Our Pile Spinning Machine's Advantages:
1. Unique "slot" design, change the screw limit between the bearing support and the base plate with the card slot and bolt limit. Both up and down sides of the spinning machine panel, undersurface and two sides of bearing support go through fine machining. Though the process is complex, it makes it more solid during high-frequency vibration of bearing support and the floor. Repair and replacement also have interchangeability.
2. Connection shaft is whole shaft, to avoid stress concentration brought by shaft diameter changes, resulting in the phenomenon of "shaft-broken".
3. The limit side of the support wheel is removable. It is convenient for users to replace.
4. Frequency-conversion cabinet of spinning machine records process parameter of each pipe and output reports, provides the office computer data communication interface.
Spinning Machine Technical Parameter:
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Wheel Distance(mm) |
2000 |
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Central wheel Distance(mm) |
950-1200 |
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Wheel Diameteri(mm) |
600 |
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Axle Diameter(mm) |
110-125 |
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Automatic controller for centrifugal concrete pile machine |
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We can customize for you. If you have any questions, please contact with us. Welcome you can visit our Factory.For inqury,Please send mail directly to us.
Concrete Single Wheel Spinning Machine
Pile Driver Machine,Spun Pile Wheel Spinning Machine,Concrete Single Wheel Spinning Machine,Single Wheel Centrifugal Spinning Machine
Jiangsu Haiheng Building-Materials Machinery Co.,Ltd , https://www.jshaiheng.com