CN103016291A

CN103016291A - Piston pump arranged in tube

Info

Publication number: CN103016291A
Application number: CN201210294342XA
Authority: CN
Inventors: 王金平; 徐少凡; 朱彩云; 李进
Original assignee: ZHENJIANG QIZHENG NEW ENERGY CO Ltd
Current assignee: ZHENJIANG QIZHENG NEW ENERGY CO Ltd
Priority date: 2012-08-13
Filing date: 2012-08-13
Publication date: 2013-04-03

Abstract

The invention discloses a piston pump arranged in a tube. A shell of a fluid pump is made of a magnetic material; and magnet exciting coils are arranged at two ends of the shell. Two magnet exciting coils are connected in parallel and have the same winding direction, and the two magnet exciting coils are superposed in the shell after being electrified, so that a magnetic field is more uniform, and the vibration and the noise of the fluid pump during work are smaller.

Description

A kind of reciprocating pump that places in the pipe

One, technical field

The present invention relates to a kind of capacity fluid pump, relate in particular to the fluid pump that a kind of suction that utilizes alternating magnetic field to produce changes the swept volume of pump.

Two, background technique

At present, the kind of pressure pump is more, such as the gear pump in the oil hydraulic pump, vane pump, plunger pump etc., and the more magnetic drive pump that is used for Korrosionsmedium and for example.Plunger pump is to utilize doing relatively reciprocating motion of piston and cylinder body to make the airtight active chamber generation volume-variation in the pump realize the suction of convection cell and the effect of pressure, but owing to the to-and-fro motion of plunger pump is to change by rotatablely moving, its complex structure, manufacture cost is high, energy consumption and noise ratio are larger, and the magneto drive fluid pump relies on changing magnetic field to drive, and its stroke and stop can be controlled by magnetic force and program, compact structure, efficient is higher.

The fluid pump that the present invention relates to moves reciprocatingly in the tubulose active chamber with magneto drive permanent magnet piston, thereby realizes the suction of convection cell and the effect of pressure.Whole fluid pump in a tubular form, compact structure, the convenient installation takes up room little.

Below be the patent of several this respects:

Patent " magnetic linear piston pump " (application number: 200320123284.0) be designed with low-pressure cavity, capacity active chamber and hyperbaric chamber, cylinder body is connected with electromagnetic coil, changes suction and the pressure of the pressure realization convection cell in three chambeies when moving reciprocatingly with piston.

Patent " moving-magnetic linear compressor " (application number: 200510029391.0) piston and permanent magnet are combined, utilize inside and outside yoke and electromagnetic coil that piston is moved reciprocatingly.

Three, summary of the invention

The present invention proposes a kind of interior piston pump structure of pipe that places and comprises: upper field coil, housing, upper positioning block, upper bumper, compression chamber, safety check, piston, spring, absorbing cavity, lower bumper, lower positioning block, lower field coil.The housing of fluid pump is that permeability magnetic material is made, and satisfies withstand voltage and wear-resisting requirement, and piston places in the cylinder shell, with the housing maintenance closely can be movingly.Upper and lower two strands of field coils are separately fixed at the two ends of housing, and in the same way coiling.Two bursts of field coil parallel connections, the electric current that passes into are the electric current that direction alternately changes.Upper and lower bumper is that rubber is made, and is separately fixed at upper and lower positioning block on the one side of piston.Some grooves are arranged on the bumper.Piston is one to be made by permanent magnet material, and there is the cylindrical body of through hole the centre.Middle through hole is a shoulder hole.The through hole upper end is equipped with a safety check, and safety check is connected with the spring of below.The projection of spring lower end and through hole lower end is fixed, and is in the state that slightly stretches.

The present invention utilizes housing that permeability magnetic material makes as the iron core of electromagnet, so that when piston places enclosure interior, magnetic intensity is even and powerful, thereby when fluid pump was worked, noise was little, shakes littlely, and structure is compacter.

Four, description of drawings

Below in conjunction with accompanying drawing, the invention will be further described.

Fig. 1 is the front section view of this device.

The position of marking is respectively among the figure: 1, upper field coil; 2, housing; 3, upper positioning block; 4, upper bumper; 5, compression chamber; 6, safety check; 7, piston; 8, spring; 9, absorbing cavity; 10, lower bumper; 11, lower positioning block; 12, lower field coil.

Five, embodiment

Below in conjunction with accompanying drawing, embodiments of the present invention are described further.

Upper positioning block 3 and lower positioning block 11 are an integral body with housing 2, and upper bumper 4 and lower bumper 10 are made by rubber material, and are separately fixed at upper and lower positioning block on the one side of piston 7.The electric current that alternately changes by certain frequency passes in 1 time field coil 12 of upper field coil, produces direction and replaces the variation magnetic field.Because upper field coil 1 and lower field coil 12 are in parallel, and coil direction is consistent, therefore the magnetic field of housing 2 inside is the stacks in two field coil magnetic fields.Piston 7 is made by permanent magnet, and when the magnetic direction in the housing 2 changed, piston 2 was done and pumped, and makes alternately enlargement and contraction of compression chamber 5 and absorbing cavity 9.When piston 7 moved downward, safety check 6 was opened, and liquid is inhaled into compression chamber 5; When piston 7 moved upward, safety check 6 cut out, and compression chamber 5 volumes reduce, and made liquid be forced out the upper end of fluid pump.

Claims

1. one kind places the reciprocating pump in the pipe, this device is by upper field coil (1), housing (2), upper positioning block (3), upper bumper (4), compression chamber (5), safety check (6), piston (7), spring (8), absorbing cavity (9), lower bumper (10), lower positioning block (11), lower field coil (12) forms, housing (2) is made for permeability magnetic material, and satisfy withstand voltage and wear-resisting requirement, piston (7) places in the cylinder shell (2), and keep closely can be movingly with housing (2).

2. a kind of placing according to claim 1 managed interior reciprocating pump, it is characterized in that: upper field coil (1) and lower field coil (12) are separately fixed at the two ends of housing (2), and in the same way coiling, two bursts of field coil parallel connections, the electric current that passes into are the electric current that direction alternately changes.

3. a kind of placing according to claim 1 managed interior reciprocating pump, it is characterized in that: piston (7) is one to be made by permanent magnet material, there is the cylindrical body of through hole the centre, middle through hole is a shoulder hole, the through hole upper end is equipped with a safety check (6), safety check (6) is connected with the spring (8) of below, and the projection of spring (8) lower end and through hole lower end is fixed, and is in the state that slightly stretches.