A plunger pump water supply system and its control method
A technology of water supply system and plunger pump, applied in pump control, pump, pump device, etc., can solve problems such as difficulty in coordinating multi-cylinder reversing time, reducing equipment water supply continuity, and oil cylinder leakage.
Active Publication Date: 2020-12-22
SANY AUTOMOBILE MFG CO LTD
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] (1) Due to certain individual differences in multiple plunger pumps, or internal leakage of the oil cylinder, etc., the speed of the plunger pump changes, and the ordinary plunger pump uses a proximity switch for reversing, or through oil pressure reversing Difficult to coordinate multi-cylinder reversing time
[0009] (2) The hydraulic system is an open-loop control, and the speed of the oil cylinder cannot be monitored and adjusted in time. In actual work, the flow rate of the oil pump will not be evenly distributed to each plunger pump in an ideal state, so there will inevitably be 2 or 2 piston pumps during continuous operation of the equipment The problem of simultaneous reversing of more than one oil cylinder greatly reduces the water supply continuity of the equipment
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0035] It should be noted that the first, second, third, and fourth mentioned in this article are only used to distinguish different parts with the same or similar features, and are not used as limitations on the parts themselves, and there is no difference between the parts. Successive relationship or dependency relationship; In addition, "and / or" in this article includes both the situation of "and" and the situation of "or".
[0036] On the one hand, please refer to Figure 1-3 , a plunger pump water supply system provided by a specific embodiment of the present invention includes N plunger pumps 10 used for fire fighting, rescue, domestic water supply, etc., an oil pump 20 that drives N plung...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a plunger pump water supply system and a control method thereof. The plunger pump water supply system comprises N plunger pumps, an oil pump, a reversing valve and a controller; each plunger pump comprises an oil cylinder and a water cylinder which are connected through a piston rod, meanwhile, a position sensor is included, and is used for obtaining the moving position of the piston rod of each plunger pump, the position sensor, the reversing valve and the oil pump are connected with the controller, the controller is used for controlling the starting time sequence and the reversing time interval of the N plunger pumps through the reversing valve according to signals of the position sensor, and when the reversing time interval of one certain or multiple plunger pumps exceeds the preset reversing time interval by a certain deviation, the controller is used for adjusting the motion speed of at least one plunger pump. According to the plunger pump water supply system and the control method thereof, closed-loop control is adopted, it can be ensured that the N plunger pumps can act according to the designed starting time sequence and the designed reversing time interval, when the reversing time interval has the deviation, in-time adjustment is carried out, water supply continuity is good, and the flow pulsation is small.
Description
technical field [0001] The invention relates to the technical field of plunger pump water supply, and more specifically, to a plunger pump water supply system and a control method thereof. Background technique [0002] With the rapid development of the domestic economy, the population is gathering in cities faster and faster, and the height of commercial and civil super high-rise buildings continues to rise. Due to the high height, many floors, complex structures, and concentrated personnel, high-rise buildings burn violently during fires. It spreads rapidly and easily forms three-dimensional combustion, which brings great difficulties to fire extinguishing. To fight fires in high-rise buildings, it is possible to organize timely and uninterrupted water supply to the fire scene to meet the water volume and pressure required for fire extinguishing, which is directly related to the success or failure of fire fighting and rescue. Obviously, fighting fires in super high-rise bu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F04B23/06F04B49/06F04B49/22
CPCF04B23/06F04B49/06F04B49/22
Inventor 钟辉平魏志魁陈城
Owner SANY AUTOMOBILE MFG CO LTD