Low head screw lift pump
A technology of spiral lifting and low head, applied in the direction of pumps, pump devices, pump components, etc., can solve the problems of high power consumption, waste of water head, low efficiency, etc., and achieve the effect of high lifting efficiency, good water stop effect, and unfavorable clogging
Inactive Publication Date: 2017-03-15
上海择希环保工程有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Conventional water pumps that are usually used at present have wasteful water head, low efficiency and high power consumption.
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
[0024] The purpose of the present invention is achieved through the following technical solutions: as Figure 1 ~ Figure 3 As shown, the low-lift screw lift pump provided by this embodiment (hereinafter referred to as the screw pump) mainly utilizes the upward thrust generated when the screw impeller rotates to carry out low-lift hydraulic lifting, and it mainly includes: the screw impeller 1, the cover of the screw impeller 1 Cylindrical casing 2, a gearbox at the top of casing 2, a motor 4 and a bottom valve 3 at the bottom of casing 2; the helical impeller is fixed by bearings at the upper and lower parts of the casing, the gearbox and motor are electrically connected with the helical impeller, and the casing The upper part of the valve is provided with a water outlet hole 6, and a circle of water inlet holes 10 is opened along the peripheral side of the bottom valve 3. The size and number of water inlet holes are determined according to the amount of water lifted and the d...
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 discloses a low-lift spiral lifting pump. The low-lift spiral lifting pump comprises a cylindrical shell, a plurality of spiral impellers stacked at intervals and rotatably fixed into the shell and a driving device located on the top of the shell, wherein the spiral impellers are connected with the driving device, a water outlet hole is formed in the upper portion of the shell, a bottom valve is arranged on the lower portion of the shell, a round of water inlet holes are further formed along the peripheral side of the bottom valve, the inner side of the hole opening of each water inlet hole is covered with a water sealing device used for preventing outlet water from flowing backward, all the spiral impellers are coaxially arranged on a rotary shaft in a sleeving mode, the bottom of the rotary shaft and the lower portion of the shell are connected through a water-proof mechanical sealed bearing, and the top of the rotary shaft is connected with the driving device. Since the low-lift spiral lifting spiral pump is low in lifting height, the rotating speed is low and greatly less than that of an ordinary water pump, and therefore the low-lift spiral lifting pump has the advantages of being high in lifting efficiency, simple in structure and not prone to blocking.
Description
technical field [0001] The invention relates to a hydraulic lifting device, in particular to a low-lift screw lifting pump mainly used for a small water level difference between adjacent pools or tanks. Background technique [0002] Various types of water pumps are used for hydraulic lifting equipment in the prior art. Due to the influence of the characteristics of the pump, it is easy to cause cavitation of the impeller when the head is running at low head (below the lower limit of the working curve of the pump). [0003] In the treatment facilities of water plants, it is often necessary to carry out low-lift lifting between adjacent pools or tanks, and the water level difference is often only tens of centimeters, or even only a few centimeters. The selection of general water pumps will affect the operation of the equipment or reduce the efficiency of the equipment and increase the operating cost. In particular, it is more difficult to adjust the flow rate. For example, ...
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): F04D3/02F04D29/00F04D29/08F04D29/10F04D29/18F04D13/06
Inventor 顾建嗣尹希勤
Owner 上海择希环保工程有限公司