Overload and overpressure protection device of ultrahigh pressure plunger pump

An overpressure protection, plunger pump technology, applied in pump control, liquid variable capacity machinery, machine/engine, etc., can solve the problems of low safety valve pressure, complex electrical control and protection structure, etc.

Pending Publication Date: 2020-02-21
WELL ROAD MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The safety valve generally bears a small pressure, and needs to be adjusted to a certain pressure in ad

Method used

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  • Overload and overpressure protection device of ultrahigh pressure plunger pump
  • Overload and overpressure protection device of ultrahigh pressure plunger pump
  • Overload and overpressure protection device of ultrahigh pressure plunger pump

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Embodiment Construction

[0016] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] Such as Figure 1-4 As shown, an overload and overpressure protection device for an ultra-high pressure plunger pump includes a joint 1, a rupture disc 2, a pressure head 3, a protective cover 4, a protective cover 5 and a sealing ring 6, and the center line of the joint 1 is vertically arranged. The upper and lower ends of the outer circumference of the joint 1 are provided with external threads, the center of the joint 1 is provided with a first through hole 7 along the axial direction, the lower surface of the bursting disc 2 is covered and pressed on the upper surface of the joint 1, and the pressure head 3 is Round pipe structure, the lower end of the indenter 3 is tightly pressed on the outer edge of the upper surface of the rupture disc 2, the bottom of the protective cover 4 is open, and the lower part of the inner ring of the protective c...

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PUM

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Abstract

The invention provides an overload and overpressure protection device of an ultrahigh pressure plunger pump. The overload and overpressure protection device comprises a connector, a rupture disk, a pressing head, a protection cover and a sealing ring, wherein outer threads are arranged at the upper end and the lower end of the outer circumference of the connector; a first through hole is formed inthe center of the connector in the axis direction; the lower surface of the rupture disk covers and presses the upper end face of the connector; the pressing head is of a round pipe structure; the lower end of the pressing head is tightly pressed on the outer edge of the upper surface of the rupture disk; the protection cover is in threaded connection to the top of the connector; the upper end ofthe pressing head is in tight pressing contact with the top of the inner side of the protection cover; the protection cover is fixed to the top of the protection cover; a gap is formed between the inner side face of the protection cover and the outer side face of the protection cover; a round groove is formed in the center of the top of the inner side of the protection cover; a plurality of second through holes are formed in the outer circumference of the upper side part of the protection cover in the circumferential direction; an annular groove is formed in the middle of the lower end face of the connector; and the sealing ring is embedded in the annular groove in a matched manner. The overload and overpressure protection device is scientific in design, easy to mount, simple in structure, large in pressure bearing and wide in overpressure range.

Description

technical field [0001] The invention relates to the technical field of ultra-high pressure plunger pumps, in particular to an overload and overpressure protection device for ultra-high pressure plunger pumps. Background technique [0002] At present, in the field of ultra-high pressure plunger pump technology, the overload and overpressure protection of the pump is mainly achieved by using a safety valve with a spring or air pressure adjustment, or using a pressure sensor for electrical control protection. The safety valve generally bears low pressure, and needs to be adjusted to a certain pressure in advance to play a protective role. The electrical control protection usually has a complicated structure. [0003] In order to solve the above existing problems, people have been seeking an ideal technical solution. Contents of the invention [0004] The object of the present invention is to provide an overload and overpressure protection device for an ultrahigh pressure plu...

Claims

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Application Information

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IPC IPC(8): F04B49/10
CPCF04B49/10
Inventor 王海能陈运生康崇涛马龙沈家祯李全兵郑轶斌张书民常威
Owner WELL ROAD MACHINERY CO LTD
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