Pressure stabilizing device of metering pump

A technology of a voltage stabilizer and a metering pump, which is applied to the components, pumps, and pump components of a pumping device for elastic fluids, can solve the problems of low stability and accuracy of the metering pump, and achieve a simple structure and high stability and accuracy. Effect

Inactive Publication Date: 2011-03-23
KAILONG HIGH TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the continuous development of modern industry towards automatic operation and remote automatic control, the advantages of metering pumps, such as strong matching and wide adaptability to medium (liquid), are particularly outstanding. At present, they are widely used in petrochemical, chemical, It is used to quantitatively t

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  • Pressure stabilizing device of metering pump
  • Pressure stabilizing device of metering pump

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Embodiment Construction

[0014] Please refer to figure 1 as shown, figure 1 It is a structural schematic diagram of a metering pump voltage stabilizing device of the present invention. In this embodiment, a metering pump voltage stabilizing device includes an accommodating cavity 2 opened in a valve body 1 and is sealed and fixed by a fixing bolt 18 and a fixing nut 17. The gland 13 outside the accommodating chamber 2 is provided with a liquid inlet 3 and a liquid outlet 4 that are both connected to the liquid flow channel of the metering pump on the accommodating chamber 2, and the liquid outlet 4 is provided with a The lower valve body 5 closely matched with the liquid outlet 4 is provided with a sealing ring 7 to prevent liquid leakage between the lower valve body 5 and the liquid outlet 4, and the lower valve body 5 is provided with a metering pump liquid flow valve. The guide channel 6 connected with the channel is provided with a flattened steel ball 10 in conjunction with the guide channel 6, ...

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Abstract

The invention discloses a pressure stabilizing device of a metering pump, comprising a containing cavity installed in a valve body and a pressure cover hermetically fixed outside a containing cavity; the containing cavity is provided with a liquid inlet and a liquid outlet both communicated with the fluid flow passage of the metering pump; a lower valve body tightly matched with the liquid outlet is arranged at the liquid outlet; the lower valve body is provided with a guide flow passage communicated with the liquid flow passage of the metering pump; a pressure sealing piece is installed by matching the guide flow passage; a first elastic piece is installed between the pressure sealing piece and the pressure cover; the pressure of the liquid in the containing cavity controls the opening and closing of the pressure sealing piece and the guide flow passage; the liquid in the containing cavity enables the pressure sealing piece to lose the pressure to seal the guide flow passage, that is the stable pressure of the metering pump; the top of the pressure cover is provided with an adjusting screw; and the adjusting screw can be used for changing the pressure value of forcing the pressure sealing piece to not seal the guide flow passage. The device has simple structure and high stability precision, and the pressure can be freely adjusted.

Description

technical field [0001] The invention relates to a pressure stabilizing device for a metering pump which can ensure that the pressure of the metering pump is stable at a specific value. Background technique [0002] As we all know, the metering pump is a special positive displacement 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 called quantitative pump or proportional pump. Metering pump belongs to reciprocating positive displacement pump. It is used for precise metering. It is usually required that the stability accuracy of metering pump should not exceed ±1%. With the continuous development of modern industry towards automatic operation and remote automatic control, the advantages of metering pumps, such as strong matching and wide adaptability to medium (liquid), are particularly outstanding. At present, they are widely used in petrochemical, chemical, It is used to quantitat...

Claims

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Application Information

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IPC IPC(8): F04B53/00F04B13/00
Inventor 臧志成李建国
Owner KAILONG HIGH TECH
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