Practical performance and use of common knowledge of BWCB asphalt pump technology
BWCB asphalt pump can't reduce the flow rate casually. Otherwise, the oil pump will have unstable working condition, and it will produce severe vibration and noise, and the efficiency will drop sharply, which is very unfavorable for the operation of the oil pump. BWCB asphalt pump technology's practical performance and the use of small common sense 1.BWCB asphalt pump can not reduce the flow rate casually, otherwise, the oil pump will appear unstable working state, and produce severe vibration and noise, the efficiency also drops sharply, this pair The operation of the oil pump is very unfavorable.
2. In order to reduce the starting power of the power machine, the valve should be started, because the power is the smallest, and the power machine is the safest. Otherwise, the motor starting power is too large, causing the motor to burn out.
3. BWCB asphalt pump should not use variable valve to adjust oil pump performance. In summary, the performance characteristics of the BWCB asphalt pump are high-flow, low-lift agricultural oil pumps. How to adjust the performance of BWCB asphalt pump in use? When the BWCB asphalt pump is in use, sometimes the performance of the oil pump does not meet the production needs, it is necessary to adjust the performance of the oil pump so that it can meet the actual needs. For example, in the winter dry oil, summer flood season, the oil level of the oil inlet or the oil production tank has changed, that is, the actual top oil level has changed. The original head and flow rate have not been adapted, the efficiency is lowered, and the oil pump operation is uneconomical. Therefore, if the oil pump can meet the new requirements and work at a higher efficiency, it is necessary to adjust the performance of the oil pump.
The performance of the BWCB asphalt pump is usually adjusted in two ways:
1. Variable speed adjustment We already know that the BWCB asphalt pump works at a certain speed and obtains the corresponding flow, head, power and efficiency. When the speed is changed, its performance parameters are changed accordingly, so as to achieve the purpose of adjustment. If the BWCB asphalt pump is powered by a diesel engine or a gasoline engine, the throttle size can be changed to change the speed. If the BWCB asphalt pump is connected to the power machine by a V-belt or a flat belt indirect transmission, the transmission pulley diameter can be changed to change the speed and replace. Both the driving wheel and the driven wheel can be used to change the transmission ratio. The variable speed adjustment oil pump performance is relatively economical and has a wide application range. It can be used for all agricultural oil pumps.
2. Variable Angle Adjustment From the perspective of construction, the impeller has a huge hub for easy installation of blades with adjustable angles. When the blade installation angle is changed, the lift force of the blade changes to the oil, which changes the working performance of the oil pump. This is the variable angle adjustment of the BWCB asphalt pump. As the installation angle of the blade increases and becomes smaller, the flow, head and power of the BWCB asphalt pump change accordingly. However, the highest efficiency point has not changed, which is very beneficial for performance adjustment. Botou Taibang Pump & Valve Manufacturing Co., Ltd. According to the impeller structure and the installation angle of the blade, the blades are divided into three types:
(1) Fixed blade The blade and the hub are cast as a whole, and the blade mounting angle is fixed at the time of design and manufacture, and cannot be adjusted during use. This type of impeller is mostly used in small pumps.
(2) Semi-adjusting blades On the impeller hub, loosen the fixing nut and the set screw of each blade, and adjust the blade mounting angle to be consistent and fastened according to requirements. Generally, the blade mounting angle is from negative 100-180. Within this range, adjust according to the requirements of use.
(3) Leaf blade The blade is adjusted by a specially designed angle adjustment mechanism. The blade can be directly manipulated to change the blade installation angle without disassembling the impeller. The adjustment range is from 0 to 260. The blade angle adjustment mechanism has two types of mechanical adjustment and hydraulic adjustment. This type of impeller is mostly used for large BWCB asphalt pumps. In the operation of BWCB asphalt pump, what is the reason for the oil pump not to produce oil or reduce the oil output? How to troubleshoot? BWCB asphalt pump is more reliable. However, failures sometimes occur. If a fault occurs, it should be eliminated in time. During the operation of the BWCB asphalt pump, the oil pump does not produce oil.
The cause of the malfunction: the elimination method: the impeller is submerged and the oil depth is not enough
1. Reduce the installation height of the pump
2. The oil pump rotates in the wrong direction.
2. Adjust the direction of rotation of the oil pump
3. The oil pump speed is too low
3. Change the transmission speed ratio and increase the pump speed
4. Breakage between the impeller and the blade or fixing the blade
4. Reinstall the impeller, tighten the nut, or replace the impeller nut loose, the blade moves
5. The blade is surrounded by a lot of debris
5. Shut back to the oil for several times, still do not produce oil, then the pump must be removed to the miscellaneous BWCB asphalt pump in operation, the oil output is reduced.
Fault reason: Exclusion method: the outer edge of the blade is worn or the blade is partially broken. 1. Replace the impeller head. 2. Adjust the lift and check whether the oil pipeline is blocked or not. The impeller inundation depth is not enough. 3. Reduce the impeller installation height. 4. Change the drive pulley to improve the weed debris on the blade of the oil pump. 5. Stop the oil and mix several times. Add the trash rack at the inlet of the oil tank to prevent the fault from appearing. Pay attention to the operation: pay attention to the change of the instrument. Pay attention to the sound and vibration of the unit. Pay attention to the change of the oil level in the oil inlet. If the oil level in the oil inlet pool drops below the specified minimum oil level, stop it. Pay attention to the cleanliness of the oil inlet tank, such as the oil inlet tank. Grass debris should be picked up in time. Where are the small mobile BWCB asphalt pumps suitable for use? What are the characteristics? What should I pay attention to when promoting the use? BWCB asphalt pumps are generally used for fixed pumping operations, which control the drainage area is relatively large. In recent years, with the transformation of the rural production system and the rapid development of the aquaculture industry, a small mobile BWCB asphalt pump has been widely used. Although the head of the oil pump is low, the flow rate is quite large, the supporting power is small, the performance is stable, the work is reliable, the structure is simple, the volume is small, the weight is light, the installation and transfer are extremely simple, and the irrigation and drainage of small-scale farmland or fish pond can be performed. It can also be used for oil drainage in other oil projects or construction sites. The structural features are as follows: the supporting power is matched with the vertical motor, and the coupling is directly driven. Any place where the power grid is installed in the field can be used. The installation form is mobile vertical and easy to use. In operation, there are fewer faults. Single-stage impeller, fixed blade, the number of blades is four. A bracket or a grating is generally installed under the oil inlet tube. The oil pump, electric motor, transmission, and inlet and outlet pipes are integral, and therefore, the oil pump is compact. In the promotion and use, it should be noted that this small oil pump is flexible and suitable for mobile pumping operations. Generally, there is no pump room, and it is placed in the field to pump oil. The sun and rain are raining, and the motor is easy to be wet. Moreover, most of the wires connecting the motor are temporarily pulled. Therefore, in the promotion and use, special attention should be paid to the safety of electricity to avoid electric shock accidents. The head of the oil pump must be used according to the value calibrated on the nameplate. It is not allowed to grow the oil pipe at will. Otherwise, there may be overload. The oil pump can be erected or tilted, and its head is measured in vertical height when used obliquely. When the oil pump is stopped for a long time, the pump body should be placed in an upright position, and the motor should be protected from moisture.
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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