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Double-groove precision metering pump

A metering pump, precision technology, applied in the direction of pumps, pump components, variable capacity pump components, etc., can solve the problems of low working efficiency, easy breakage of pump rods, etc., to improve filling efficiency, prevent insufficient strength, improve life and The effect of job reliability

Inactive Publication Date: 2017-02-15
WUXI SHUPUER PRECISION MASCH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the existing ceramic pumps, such as low working efficiency and easy fracture of the pump rod, the applicant provides a double-slot precision metering pump with a reasonable structure, which shortens the filling time and improves the filling efficiency, and the pump rod is not easy to break. Ensure long-term stable operation of equipment and save production costs

Method used

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  • Double-groove precision metering pump

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 , figure 2 As shown, the double-tank precision metering pump of the present invention includes a pump rod 1 , a pump body 2 , a liquid inlet 3 , a liquid outlet 4 , a bottom cover 5 and a ceramic core 6 . The inner wall of the pump body 2 is nested with a ceramic core body 6, and a hole 7 is opened in the center of the ceramic core body 6, and the pump rod 1 is inserted into the hole 7. A liquid inlet 3 and a liquid outlet 4 are oppositely arranged on the outer wall of the pump body 2 , and the liquid inlet 3 and the liquid outlet 4 are located at the same level, orthogonal to the pump body 2 , and communicated with the hole 7 . The pump rod 1 is made of ceramic material and is divided into an upper rod handle 101 and a lower main rod 102. The diameter of the rod handle 101 is smaller than or equal to the diameter of the main rod 102. The outer peripheral surface of the lower part of the main rod 102 is provided with a liquid inlet groove 103 and a li...

Embodiment 2

[0028] Such as image 3 , Figure 4 As shown, the ceramic core 6 in this embodiment is respectively processed with a liquid inlet guide groove 8 and a liquid outlet guide groove 9 on the inner wall surface below the liquid inlet 3 and the liquid outlet 4, and the center of the ceramic core 6 is The upper part of the hole 7 is slightly thinner, formed as Figure 4 The fine aperture 10 is shown, and the lower part is slightly thicker to form a coarse aperture 11 . Such as Figure 5 As shown, the pump rod 1 is also made of ceramic material, and is divided into an upper rod handle 101, a middle main rod 102 and a bottom rod head 105. The diameter of the rod handle 101 is less than or equal to the diameter of the main rod 102, and the diameter of the main rod 102 is smaller than the diameter of the rod head 105. The joint between the main rod 102 and the rod head 105 is a step 106, and small liquid-impermeable gaps are used between the main rod 102 of the pump rod 1 and the fine...

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Abstract

The invention discloses a double-groove precision metering pump. A hole is formed in the center of a pump body; a pump rod is inserted into the hole; a liquid inlet and a liquid outlet are oppositely formed in the pump body; the liquid inlet and the liquid outlet are positioned on the same horizontal height, are orthogonal with the pump body, and communicates with the hole; a liquid inlet groove and a liquid outlet groove are formed in the outer circumferential surface of the lower part of the pump rod; and an included angle between the two grooves is 40-140 degrees, preferably 90 degrees. According to the double-groove precision metering pump disclosed by the invention, one of the two grooves is the liquid inlet groove, and the other one of the two grooves is the liquid outlet groove; when liquid inlet and liquid outlet need shifting, a pump rod rotates by 90 degrees to complete shifting; and compared with an original single-groove pump rod, the pump rod has the advantages that rotation time of the pump rod in single-time filling can be shortened by one half, so that filling efficiency is effectively improved. Upper and lower diameters of a hole in the center of a ceramic core body are different, and liquor is stored in a circular-ring-shaped cavity between the pump body and the inner surface of the ceramic core body, so that small-dose filling is precisely controlled, and fracture is effectively prevented when strength during work of a small-diameter pump rod is insufficient.

Description

technical field [0001] The invention relates to the technical field of pumps, in particular to a double-slot precision metering pump used for filling medicine and chemical industry. Background technique [0002] At present, plunger pumps are widely used in medicine, environmental engineering, petroleum and chemical industries. Because metal pumps have low hardness, poor wear resistance and corrosion resistance, and are not resistant to high temperatures, ceramic materials are used to make plunger pumps. . The liquid inlet and liquid outlet of existing ceramic pumps are usually set opposite and located at the same level. There is a single groove on the pump rod. When filling, the groove on the pump rod is first aligned with the liquid inlet. , the pump rod goes up to complete the liquid intake, then the pump rod rotates 180 degrees, aligns the groove with the liquid outlet, the pump rod goes down to complete the liquid discharge, and finally the pump rod rotates 180 degrees ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B13/00F04B53/00
CPCF04B13/00F04B53/00
Inventor 袁书清杨凌志
Owner WUXI SHUPUER PRECISION MASCH TECH CO LTD