CN208778206U - A kind of liquid plunger locellus pump head - Google Patents

Abstract

The utility model provides a kind of liquid plunger locellus pump head, problem when equipment very good solution high-pressure high-flow liquid conveying, such as maximum pressure when conveying mud is up to 50mpa, maximum stream flow 400L/min simultaneously, it is equipped with power 350Kw, general plunger pump and diaphragm pump are unreachable to, and the elastic membrane of liquid plunger locellus pump head completely cuts off trandfer fluid and liquid plunger, so that plunger is in good working environment, substantially reduces the abrasion and corrosion of rigid plunger；Sliding cylinder extrusion pressure medium, pressure medium serves as the stepless action of liquid plunger in elastic membrane side, elastic membrane deformable squeeze fluid completes conveying, with the variation of fluid load, the synchronous variation of elastic membrane pressure at both sides, elastic membrane do not do pressure-containing member, avoid destruction of the elastic membrane by Fluid pressure, pump head output pressure is not limited by elastic membrane self attributes, can adjust elastic membrane size according to discharge capacity demand.

Description

A kind of liquid plunger locellus pump head

Technical field

The utility model discloses a kind of liquid plunger locellus pump head equipment, can transport high pressure water, cement slurry, oil, corrosion Property liquid and other fluids, high-pressure high-flow fluid conveying, Polluted Soil/mud improvement, whirl spraying/directional drilling/jet-anchor execution, The industries such as oil drilling can be widely used.

Background technique

High-pressure high-flow liquid is conveyed, equipment mostly uses traditional plunger pump to provide at present, and traditional plunger pump disadvantage exists In when conveying mud, mud can damage plunger similar to high -pressure water cutting principle when sealing is slightly revealed, and corrode in conveying Property liquid when, due to the poor corrosion resistance of common plunger and cylinder seal, cause pump housing corrosion serious, the service life greatly shortens； Conventional diaphragm pump can solve the above problem, but since the limitation of diaphragm material attribute and diaphragm pump structure can not provide completely The high pressure and big flow of sufficient demand convey.

Utility model content

In order to solve the above problem, the utility model provides a kind of liquid plunger locellus pump head, the equipment very good solution Problem when high-pressure high-flow liquid conveys, such as maximum pressure when conveying mud is up to 50mpa, while maximum stream flow 400L/min is equipped with power 350Kw, and general plunger pump and diaphragm pump are unreachable to, the elasticity of liquid plunger locellus pump head Film completely cuts off trandfer fluid and liquid plunger, and plunger is made be in good working environment, substantially reduce the abrasion of rigid plunger with Corrosion；Sliding cylinder extrusion pressure medium, pressure medium serve as the stepless action of liquid plunger in elastic membrane side, elastic membrane deformable squeeze Fluid completes conveying, and with the variation of fluid load, the synchronous variation of elastic membrane pressure at both sides, elastic membrane is not done pressure-containing member, kept away Exempt from destruction of the elastic membrane by Fluid pressure, pump head output pressure is not limited by elastic membrane self attributes, can be according to discharge capacity Demand adjusts elastic membrane size.

The utility model is realized by following device:

The pump housing, pump housing seal assembly, pump housing plunger, pump head seal assembly, fuel tank, pressure-resistant connecting tube, vacuum Fill valve are high Pressurized overflow valve, oil return box, pressure medium cavity, pressure medium cavity fixing bolt, pressure medium, elastic membrane pedestal sealing group Part, elastic membrane bottom of chamber seat, elastic membrane, trandfer fluid, elastic membrane cavity gland, check valve seal assembly, import chip check valve are single To valve pressing plate for sealing component, import check valve pressing plate, fluid inlet connector, screw arbor assembly, baffle, baffle standing screw group Part exports chip check valve, Outlet check valves pressing plate, interior hexagonal cylindrical body screw, fluid outlet connection, high-voltage tube.

Detailed description of the invention:

Fig. 1 is liquid plunger locellus pump head structure schematic diagram；

Accompanying drawing number title: the 1- pump housing, 2- pump housing seal assembly, 3- pump housing plunger, 4- pump head seal assembly, 5- fuel tank, 6- pressure resistance connecting tube, 7- vacuum Fill valve, 8- high-pressure overflow valve, 9- oil return box, 10- pressure medium cavity, 11- pressure medium chamber Body fixing bolt, 12- pressure medium, 13- elastic membrane pedestal seal assembly, 14- elastic membrane bottom of chamber seat, 15- elastic membrane, 16- are defeated Send fluid, 17- elasticity membrane cavity gland, 18- check valve seal assembly, 19- import chip check valve, 20- check valve pressing plate for sealing Component, 21- import check valve pressing plate, 22- fluid inlet connector, 23- screw arbor assembly, 24- baffle, the fixed spiral shell of 25- baffle Bar assembly, 26- export chip check valve, 27- Outlet check valves pressing plate, hexagonal cylindrical body screw in 28-, and 29- fluid outlet connects Head；

Fig. 2 is liquid plunger locellus pump head one stroke operation schematic diagram；

Accompanying drawing number title: 30- high-voltage tube.

Specific embodiment:

Pump housing seal assembly 2, pump housing plunger 3 and pump head seal assembly 4 be installed on the pump housing 1, pressure medium cavity 10 by Pressure medium cavity fixing bolt 11 is fixed and is pressed on the pump housing 1, and the benefit of pressure medium 12 is installed on pressure medium cavity 10 It fills and overflow mechanism, supplement and overflow mechanism is by fuel tank 5, pressure-resistant connecting tube 6, vacuum Fill valve 7, high-pressure overflow valve 8, oil return box 9 compositions, and be connected on pressure medium cavity 10 by diagramatic way, pressure medium 12 is filled in pressure medium cavity 10 to be served as Liquid plunger, pressure medium 12 have certain viscosity and have the function of lubricating and antirust, and elastic membrane bottom of chamber seat 14 is mounted on pressure Jie 10 down channel of matter cavity, and sealed by elastic membrane pedestal seal assembly 13, elastic membrane 15 is compressed simultaneously by elastic membrane cavity gland 17 Sealing, elastic membrane 15, which separates pressure medium 12 and trandfer fluid 16, is in pump housing plunger 3 in pressure medium package, drops significantly The abrasion and corrosion of low rigidity plunger make to install import chip check valve 19 on elastic membrane cavity gland 17 and be sealed by check valve Component 18 seals, and import chip check valve 19 and import check valve pressing plate 21 are sealed by check valve pressing plate for sealing component 20, elasticity Film pedestal seal assembly 13, elastic membrane bottom of chamber seat 14, elastic membrane 15, trandfer fluid 16, elastic membrane cavity gland 17, check valve sealing Component 18, import chip check valve 19, check valve pressing plate for sealing component 20, import check valve pressing plate 21 are whole by screw arbor assembly 23 It fixes and compresses, fluid inlet connector 22,16 note of trandfer fluid for that will need to convey are installed on import check valve pressing plate 21 Enter pump head, baffle 24 is installed in elastic 17 one end of membrane cavity gland, and baffle 24 is compressed and consolidated by baffle standing screw component 25 It is scheduled on elastic 17 side of membrane cavity gland, setting 24 purpose of baffle is will to export chip check valve 26 vertically to place, and helps The opening and closing of mouth chip check valve 26 exports chip check valve 26 and Outlet check valves pressing plate 27 by interior hexagonal cylindrical body screw 28 It is fixed and clamped on baffle 24, and by sealing group identical with check valve seal assembly 18, check valve pressing plate for sealing component 20 Part seals, and fluid outlet connection 29 is installed on Outlet check valves pressing plate 27, and connection high-voltage tube 30 transfers out, pump housing plunger 3 A certain amount of pressure medium 12 is discharged in one stroke, and pressure medium 12 serves as liquid plunger and enters elastic membrane cavity stepless action in bullet Property 15 side of film squeeze elastic membrane 15,15 compressive deformation of elastic membrane squeeze trandfer fluid 16, fluid by outlet chip check valve 26 discharges, 15 two sides of elastic membrane are full of the pressure medium 12 and trandfer fluid 16 of equalization of pressure, and elastic membrane 15 does not do pressure-containing member, The destruction for avoiding elastic membrane 15 from being under pressure.Otherwise 3 backhaul of pump housing plunger generates certain negative pressure, and atmospheric pressure is by trandfer fluid 16 enter elastic membrane cavity through import chip check valve 19, the supplement and overflow mechanism (serial number 5,6,7,8,9) of pressure medium 12 when In order to guarantee safety when 12 pressure of pressure medium reaches setting value, pressure medium by 8 off-load of high-pressure overflow valve to oil return box 9, 12 volume of pressure medium is insufficient for the backhaul action of pump housing plunger 3 after off-load, and elastic membrane 15 returns to initial position and closes 10 down channel of pressure medium cavity, pump housing plunger 3 continue backhaul backward, and pump housing plunger 3 continues backhaul and generates negative pressure of vacuum, greatly Pressure medium 12 in fuel tank 5 is supplemented in pressure medium cavity 10 by atmospheric pressure through pressure-resistant connecting tube 6 and vacuum Fill valve 7.

Claims (1)

1. a kind of liquid plunger locellus pump head, characterized in that on the pump housing (1) install pump housing seal assembly (2), pump housing plunger (3), And pump head seal assembly (4), pressure medium cavity (10) is fixed by pressure medium cavity fixing bolt (11) and is pressed on pump On body (1), the supplement and overflow mechanism of pressure medium (12), the supplement and overflow mechanism are installed on pressure medium cavity (10) It is sequentially connected in series by fuel tank (5), pressure-resistant connecting tube (6), vacuum Fill valve (7), high-pressure overflow valve (8) and oil return box (9), And it is connected on pressure medium cavity (10)；It is filled pressure medium (12) in pressure medium cavity (10), pressure medium (12) has Certain viscosity simultaneously has the function of lubricating and antirust, and elastic membrane pedestal seal assembly (13) is mounted below pressure medium cavity (10) Channel is simultaneously sealed by elastic membrane pedestal seal assembly (13), and elastic membrane (15) is compressed and sealed, bullet by elastic membrane cavity gland (17) Property film (15) separates pressure medium (12) and trandfer fluid (16)；

Import chip check valve (19) are installed on elastic membrane cavity gland (17) and are sealed by check valve seal assembly (18), import piece Formula check valve (19) and import check valve pressing plate (21) are sealed by check valve pressing plate for sealing component (20)；

Elastic membrane pedestal seal assembly (13), elastic membrane bottom of chamber seat (14), elastic membrane (15), trandfer fluid (16), elastic membrane cavity Gland (17), check valve seal assembly (18), import chip check valve (19), check valve pressing plate for sealing component (20), import list It is fixed and is compressed by screw arbor assembly (23) to valve pressing plate (21) is whole；

Fluid inlet connector (22) are installed on import check valve pressing plate (21), trandfer fluid (16) injection pump that needs are conveyed Baffle (24) are installed in head, elastic membrane cavity gland (17) one end, and baffle (24) is compressed by baffle standing screw component (25) And it is fixed on elastic membrane cavity gland (17) side；

Outlet chip check valve (26) and Outlet check valves pressing plate (27) are fixed and clamped by interior hexagonal cylindrical body screw (28) and are leading It flows on block (24), and is sealed by seal assembly identical with check valve seal assembly (18), check valve pressing plate for sealing component (20)； Fluid outlet connection (29) are installed on Outlet check valves pressing plate (27), for connecting high-voltage tube (30)；

A certain amount of pressure medium (12) is discharged in the one stroke of pump housing plunger (3), and pressure medium (12) is squeezed into bullet Property membrane cavity stepless action elastic membrane (15) side squeeze elastic membrane (15), elastic membrane (15) compressive deformation squeeze trandfer fluid (16), trandfer fluid (16) is full of the pressure of equalization of pressure by outlet chip check valve (26) discharge, elastic membrane (15) two sides Medium (12) and trandfer fluid (16), elastic membrane (15) do not do pressure-containing member；

(3) backhaul of pump housing plunger generates certain negative pressure, atmospheric pressure by trandfer fluid (16) through import chip check valve (19) into Enter elastic membrane cavity, when pressure medium (12) pressure reaches setting value, pressure medium (12) passes through high-pressure overflow valve (8) off-load extremely Oil return box (9), pressure medium (12) volume is insufficient for the backhaul action of pump housing plunger (3), elastic membrane (15) after off-load Confining pressure medium cavity (10) down channel when returning to initial position, pump housing plunger (3) can also backhaul backward, pump housing plunger (3) continue backhaul generate negative pressure of vacuum, atmospheric pressure by the pressure medium (12) in fuel tank (5) through pressure-resistant connecting tube (6) and very Empty Fill valve (7) is supplemented in pressure medium cavity (10).