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Novel hydraulic metering pump and measuring method thereof

A metering pump and hydraulic technology, applied in the field of metering pumps, can solve the problems of high-precision metering of corrosion, and achieve the effect of making up for the decrease in air tightness, easy access and high accuracy

Pending Publication Date: 2021-07-27
上海雅燊电子技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a new type of hydraulic metering pump to solve the problem that the metering pump is used for high-precision metering of corrosive liquids in the above-mentioned background technology

Method used

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  • Novel hydraulic metering pump and measuring method thereof
  • Novel hydraulic metering pump and measuring method thereof
  • Novel hydraulic metering pump and measuring method thereof

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Embodiment Construction

[0030] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] see Figure 1-3 , the invention provides a technical solution of a novel hydraulic metering pump:

[0032] according to figure 1 As shown, including the pump body 4, the pump body 4 divides the inner chamber of the pump body 4 into an upper chamber and a lower chamber through a partition plate 8 provided. The plug 6 divides the upper chamber into a metering chamber 5 and an upper pressure chamber 7. The inner surface of the lower chamber is cylindrical and fits the lower chamber plunger 13 in a sliding seal. The low...

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Abstract

The invention discloses a novel hydraulic metering pump. The novel hydraulic metering pump comprises a pump body, wherein an inner cavity of the pump body is divided into an upper cavity and a lower cavity through an arranged partition plate; the upper cavity is in sliding sealing fit with an upper cavity plunger; the upper cavity plunger divides the upper cavity into a metering cavity and an upper pressure cavity; the lower cavity is in sliding sealing fit with a lower cavity plunger; the lower cavity plunger, the partition plate and the inner wall of the lower cavity form a lower pressure cavity; the lower cavity plunger is connected to the upper cavity plunger through an arranged connecting rod; and the connecting rod is in sliding sealing fit with the inner hole wall of the partition plate through a connecting rod sealing ring. The upper cavity plunger is pushed to slide by means of hydraulic pressure introduction and the like, so that the interior volume of the metering cavity is reduced, and liquid in the cavity is discharged; and one pulse signal is sent when a metering hole passes through a metering photoelectric sensor at a time, the total liquid amount discharged out of the pump body can be calculated by detecting the signal according to the liquid amount discharged out of the pump body within the time interval between the received pulse signals, and accurate metering is completed.

Description

technical field [0001] The invention relates to the technical field of metering pumps, in particular to a novel hydraulic metering pump. Background technique [0002] Metering pump, also known as quantitative pump or proportional pump, is a special volumetric pump that can meet the needs of various strict technological processes. The flow rate can be adjusted steplessly in the range of 0-100%. It is used to transport liquid. It is a kind of fluid conveying machinery, and its outstanding feature is that it can maintain a constant flow regardless of the discharge pressure. The use of metering pumps can simultaneously complete the functions of conveying, metering and adjustment, thereby simplifying the production process. Due to its outstanding features, metering pumps have been widely used in chemical, pharmaceutical, food and other industrial fields. [0003] In the existing technology, the metering pump generally adopts a diaphragm type or a plunger type. The diaphragm type...

Claims

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Application Information

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IPC IPC(8): F04B9/105F04B13/00F04B51/00
CPCF04B9/1056F04B13/00F04B51/00
Inventor 张维国
Owner 上海雅燊电子技术有限公司
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