CN107387357A - High-low pressure well testing pump - Google Patents
High-low pressure well testing pump Download PDFInfo
- Publication number
- CN107387357A CN107387357A CN201710764849.XA CN201710764849A CN107387357A CN 107387357 A CN107387357 A CN 107387357A CN 201710764849 A CN201710764849 A CN 201710764849A CN 107387357 A CN107387357 A CN 107387357A
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- Prior art keywords
- section
- piston
- chamber
- annular groove
- rear end
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
- F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
- F04B9/113—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting liquid motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Abstract
The invention discloses a kind of high-low pressure well testing pump, it is related to water pump technology.It includes：Reciprocating drive mechanism and the pumping means driven by reciprocating drive mechanism；Pumping means is provided with the first piston chamber and second piston chamber of diameter parallel；The second piston section and first piston section driven by reciprocating drive mechanism, second piston section coordinate with second piston chamber, and first piston section coordinates with first piston chamber, and the sectional area of first piston section is less than the sectional area of second piston section；Drain pipe connects the first unidirectional liquid outlet and the second unidirectional liquid outlet；Feed tube connects the first unidirectional inlet and the second unidirectional inlet, and feed tube is provided with the switching mechanism for being used for that the second unidirectional inlet to be set to two-way admittance.The second piston section of the present invention coordinates with second piston chamber, first piston section and first piston chamber cooperatively form two piston structures.The piston structure of second piston section and second piston chamber is come into force or failed by switching mechanism, realizes the regulation of pumping pressure.
Description
Technical field
The present invention relates to water pump technology, is specifically related to a kind of high-low pressure well testing pump.
Background technology
Using the form of internal combustion engine or the water pump of motor-driven impeller structure, it is only capable of passing through regulation traditional well testing pump
The rotating speed of internal combustion engine or motor adjusts the displacement of well testing pump, for the pumping pressure of well testing pump is difficult to accurately adjust
Section.Simultaneously because the limitation of blade wheel structure itself, traditional well testing pump is difficult to reach higher pumping pressure.
The content of the invention
It is an object of the invention to provide a kind of high-low pressure well testing pump, to solve in the prior art, traditional well testing pump pump
Pressurization pressure is difficult to accurately adjust, while is difficult to the technical problem for reaching higher pumping pressure.
To achieve the above object, the technical solution used in the present invention is：
A kind of high-low pressure well testing pump, it includes：Reciprocating drive mechanism and the pumping means driven by the reciprocating drive mechanism；Institute
Stating pumping means includes：
The pump housing of the reciprocating drive mechanism is connected, the first piston that interconnected and axis is parallel to each other is provided with the pump housing
Chamber and second piston chamber, are provided with the first unidirectional inlet and the first unidirectional liquid outlet on the outside of the first piston chamber, and described second
The second unidirectional inlet and the second unidirectional liquid outlet are provided with the outside of plunger shaft；
The reciprocating drive mechanism is connected with second piston section, and the second piston section is slidingly sealed with the second piston chamber matches somebody with somebody
Close；
The second piston section top is connected with first piston section, and the first piston section is slidingly sealed with the first piston chamber
Coordinate, and the sectional area of the first piston section is less than the sectional area of the second piston section；
On the pump housing and the drain pipe with main liquid outlet is respectively communicated with the described first unidirectional liquid outlet and described second
Unidirectional liquid outlet；And
On the pump housing and the feed tube with main inlet is respectively communicated with the described first unidirectional inlet and described second
Unidirectional inlet, the feed tube is interior to be provided with the switching mechanism for being used for that the described second unidirectional inlet to be set to two-way admittance.
Further, the described second unidirectional inlet includes：It is communicated between the second piston chamber and the feed tube
Inlet opening, the limiting plate being fixed in the inlet opening, the bonnet that is movably set in the inlet opening and be fixed on institute
State and spacing ring is sealed in inlet opening；On the conducting direction of the inlet opening, the limiting plate is located at the bonnet described in
The side of second piston chamber, it is described sealing spacing ring be located at the bonnet towards the side of the feed tube and be used for it is described
Valve bonnet seal coordinates.
Further, the switching mechanism includes being articulated with the rotating shaft of the feed tube, in the feed tube and set
There are the pedestal of pilot hole and the push rod being arranged in the pilot hole；Described rotating shaft one end is penetrated in the feed tube, and is worn
The end for entering the rotating shaft of the feed tube is provided with eccentric wheel；Described push rod one end is resisted against the outer rim of the eccentric wheel,
Second unidirectional inlet described in other end ejection.
Further, the intersegmental gap of the first piston chamber and the first piston coordinates, the first piston chamber with it is described
The first sealing ring that cooperation is slidingly sealed with the first piston section is provided between second piston chamber.
Further, the second piston section coordinates with the intersegmental gap of the second piston, the starting of the second piston chamber
End is provided with the second sealing ring that cooperation is slidingly sealed with the second piston section.
Further, the reciprocating drive mechanism front-end and back-end are respectively provided with a drive end；The pumping means has
Two and it is connected to the front-end and back-end of the reciprocating drive mechanism.
Further, the reciprocating drive mechanism includes：
The hydraulic cylinder exported provided with power fluid import and power fluid, the inner chamber of the hydraulic cylinder includes being interconnected and diameter parallel
Power section and return liquid section, the sectional area of the power section is more than the sectional area for returning liquid section；And
Piston in the cylinder chamber, the piston include be sequentially connected from front to back lattice, main part and
Power part, the sectional area of the power part are more than the sectional area of the lattice, and the lattice slides close with described time liquid section
Envelope coordinates, and the power part is slidingly sealed cooperation, the lattice and the power part by the hydraulic cylinder with the power section
Inner chamber be separated into back to the fluid chamber successively from front to back, retreat chamber and advance chamber, retreat chamber described in the power fluid inlet communication, institute
The chamber that advances described in power fluid outlet is stated, the piston, which is provided with, to be used to make the advance chamber connect or make with the back to the fluid chamber
The inertia valve that the advance chamber connects with the retrogressing chamber.
Further, the inertia valve includes valve pocket, in the valve pocket and in the piston movement direction
Reciprocating inertia valve element and the guiding mechanism being oriented to the inertia valve element on the piston movement direction；
The valve pocket includes front end conducting annular groove, front end step circles shell of column, the cylinder for being coaxially disposed and being sequentially communicated from front to back
Shape Connectivity Section, rear end step cylindrical section and rear end conducting annular groove；The front end of the front end step circles shell of column connects the front end and led
Opening on the inside of logical annular groove, the diameter of the front end step circles shell of column are more than the diameter of the Connectivity Section；The rear end step circle
The rear end of shell of column connects the opening on the inside of the rear end conducting annular groove, and the diameter of the rear end step cylindrical section is less than the rear end
Turn on the external diameter of annular groove；The front end conducting annular groove connects the back to the fluid chamber by liquid back pipe, and the rear end conducting annular groove passes through
Retreat pipe and connect the retrogressing chamber, the Connectivity Section connects the advance chamber by preceding inlet pipe；
The forward sealing portion includes：Lateral surface is used for the tubular front end closure for blocking side opening in the front end conducting annular groove
Section and the forward end seal section for coordinating with front end step circles shell of column sealing；
The back-end sealing portion includes：Side is used for the cylindrical rearward end block section for blocking side opening in the rear end conducting annular groove
With the back-end sealing section for coordinating with rear end step cylindrical section sealing；
The front end block section, the forward end seal section, the connecting portion, the back-end sealing section and the rear end block section from
It is sequentially connected after forward direction；
Conducting gap is formed between the Connectivity Section and the connecting portion, the length of the Connectivity Section is less than the length of the connecting portion
Degree.
Further, the guiding mechanism includes：It is slidably matched positioned at the valve pocket front end and with the front end block section
Annular front end directed cavity and positioned at the valve pocket rear end and the cylindrical rearward end that is slidably matched with the rear end block section
Directed cavity.
Further, the balance pipe of the back to the fluid chamber and the advance chamber, the lattice are communicated with the piston
Front end face is provided with back liquid annular groove, and the liquid back pipe connection is described to return liquid annular groove；The power part rear end face is provided with advance ring
Shape groove, the preceding inlet pipe connect the advance annular groove；Balance pipe one end connection is described to return liquid annular groove, other end connection
The preceding inlet pipe.
The beneficial effects of the present invention are：Compared with prior art, the second piston section of high-low pressure well testing pump of the present invention with
Second piston chamber coordinates, the first piston section and first piston chamber cooperatively form two piston structures, and piston structure goes out liquid
Pressure is bigger.The piston structure of second piston section and second piston chamber is failed by switching mechanism so that first piston section with
The independent pump liquid of first piston chamber, the first pumping pressure is formed in drain pipe；By switching mechanism by second piston Duan Yu
The piston structure of two plunger shafts is switched to effectively, and first piston section is total to first piston chamber and second piston section with second piston chamber
Same pump liquid, the second pumping pressure is formed in drain pipe, realizes the regulation of pumping pressure.
Brief description of the drawings
Fig. 1 is the front view of high-low pressure well testing pump of the present invention；
Fig. 2 is Fig. 1 top view；
Fig. 3 is Fig. 1 side view；
Fig. 4 is the profile of high-low pressure well testing pump of the present invention；
Fig. 5 is enlarged drawing at the A in Fig. 4；
Fig. 6 is the sectional view of the reciprocating drive mechanism of high-low pressure well testing pump of the present invention；
Fig. 7 is enlarged drawing at the B in Fig. 6；
Fig. 8 is enlarged drawing at the C in Fig. 6；
Fig. 9 is the sectional view of the switching mechanism of high-low pressure well testing pump of the present invention.
In figure：01- reciprocating drive mechanisms, the 02- pump housings, 021- first pistons chamber, the first unidirectional inlets of 0211-, 0212-
First unidirectional liquid outlet, 022- second pistons chamber, the second unidirectional inlets of 0221-, the second unidirectional liquid outlets of 0222-, 03- second
Piston section, 04- first pistons section, 05- drain pipes, the main liquid outlets of 051-, 052- safety valves, 06- feed tubes, the main feed liquors of 061-
Mouth, 071- bonnets, 072- limiting plates, 073- sealing spacing ring, 074- inlet openings, 081- rotating shafts, 082- pedestals, 083- push rods,
084- eccentric wheels, 085- handles, the sealing rings of 091- first, the sealing rings of 092- second, the import of 11- power fluids, 12- power fluids go out
Mouth, 13- power sections, 14- return liquid section, 15-- cylinder bodies, 16- cylinder sleeves, 17- closure portions, 21- lattices, 22- main parts, 23- power
Portion, 31- back to the fluid chambers, 32- retreat chamber, 33- advances chamber, 4- inertia valves, 41- front ends step circles shell of column, 42- Connectivity Sections, 43- rear ends
Step circles shell of column, 44- front ends conducting annular groove, 45- rear ends conducting annular groove, 46- connecting portions, 47- forward end seals section, 48- rear ends are close
Inlet pipe, 73- retreat pipe, 81- front ends block section, 82- rear ends block section, 83- front ends before envelope section, 6- connecting rods, 71- liquid back pipes, 72-
Directed cavity, 84- rear ends directed cavity, 9- balance pipes.
Embodiment
In order that technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Now high-low pressure well testing pump provided by the invention is illustrated.
As shown in Figures 1 to 4, a kind of high-low pressure well testing pump, it includes：Reciprocating drive mechanism 01 and by the reciprocal driving
The pumping means that mechanism 01 drives；The pumping means includes：
Connect the pump housing 02 of the reciprocating drive mechanism 01, be provided with and be interconnected and axis is parallel to each other the in the pump housing 02
One plunger shaft 021 and second piston chamber 022, the outside of first piston chamber 021 are provided with the first unidirectional inlet 0211 and first
Unidirectional liquid outlet 0212, the outside of second piston chamber 022 are provided with the second unidirectional 0221 and second unidirectional liquid outlet of inlet
0222；
The reciprocating drive mechanism 01 is connected with second piston section 03, the second piston section 03 and the second piston chamber 022
It is slidingly sealed cooperation；
The top of second piston section 03 is connected with first piston section 04, the first piston section 04 and the first piston chamber
021 is slidingly sealed cooperation, and the sectional area of the first piston section 04 is less than the sectional area of the second piston section 03；
On the pump housing 02 and the drain pipe 05 with main liquid outlet 051 is respectively communicated with the described first unidirectional liquid outlet 0212
With the described second unidirectional liquid outlet 0222；And
On the pump housing 02 and the feed tube 06 with main inlet 061 is respectively communicated with the described first unidirectional inlet 0211
It is interior provided with double for the described second unidirectional inlet 0221 to be set to the described second unidirectional inlet 0221, the feed tube 06
To the switching mechanism of conducting.
High-low pressure well testing pump provided by the invention, compared with prior art, second piston section 03 and second of the invention are lived
Plug chamber 022 coordinates, the first piston section 04 cooperatively forms two piston structures with first piston chamber 021, and piston structure goes out
Hydraulic coupling is bigger.The piston structure of second piston section 03 and second piston chamber 022 is failed by switching mechanism so that first lives
Section 04 and 021 independent pump liquid of first piston chamber are filled in, the first pumping pressure is formed in drain pipe 05；By switching mechanism by
Two piston sections 03 and the piston structure of second piston chamber 022 switch to effectively, first piston section 04 and first piston chamber 021 and the
Two piston sections 03 and 022 common pump liquid of second piston chamber, the second pumping pressure is formed in drain pipe 05, realize pumping pressure
The regulation of power.
Specifically, the first piston chamber 021 and second piston chamber 022 of cylinder are machined with the pump housing 02.First piston chamber
021 and second piston chamber 022 be coaxially disposed, the diameter of second piston chamber 022 is more than the diameter of first piston chamber 021, and the
The top of the bottom of one plunger shaft 021 connection second piston chamber 022.Second piston section 03 and first piston section 04 are cylinder, and
And both are coaxially disposed, the bottom of first piston section 04 is connected to the top of second piston section 03, the diameter of second piston section 03
More than the diameter of first piston section 04.Drain pipe 05 and feed tube 06 be arranged in parallel, are separately mounted to the both sides of the pump housing 02.First
Unidirectional 0211 and second unidirectional inlet 0221 of inlet is arranged on the side that the pump housing 02 is provided with feed tube 06, the first unidirectional feed liquor
0211 and second unidirectional inlet 0221 of mouth is respectively communicated with the side wall of first piston chamber 021 and second piston chamber 022.First
Unidirectional 0212 and second unidirectional liquid outlet 0222 of liquid outlet is arranged on the side that the pump housing 02 is provided with drain pipe 05, and first unidirectionally goes out liquid
0212 and second unidirectional liquid outlet 0222 of mouth is respectively communicated with the side wall of first piston chamber 021 and second piston chamber 022.First
Unidirectional inlet 0211, the first unidirectional liquid outlet 0212, the second unidirectional 0221 and second unidirectional liquid outlet 0222 of inlet use
Second unidirectional inlet 0221 is set to by the check valve of valve cover type or ball type, switching mechanism by ejection bonnet 071 or steel ball
The normally open of two-way admittance.Reciprocating drive mechanism 01 uses the reciprocating drive mechanism 01 of fluid pressure type, reciprocating drive mechanism 01
The bottom of piston connection second piston section 03, driving second piston section 03 and first piston section 04 are in first piston chamber 021 and the
Moved back and forth in two plunger shafts 022.First piston section 04 and first piston chamber 021 cooperatively form piston structure, second piston section
03 and two plunger shaft cooperatively form piston structure；The sectional area of first piston section 04 is less than the section of the second piston section 03
Product, after first piston section 04 exits from first piston chamber 021, into second piston chamber 022.When switching mechanism initial position,
Second unidirectional inlet 0221 is when normally playing unidirectional valve action, first piston chamber 021 and second piston chamber 022 is all produced
The effective area of pump action, first piston section 04 and second piston section 03 is the sectional area of second piston section 03；Work as switching machine
After structure switching, the second unidirectional inlet 0221 is the normally open of two-way admittance, and first piston chamber 021 produces pump action, the
Two plunger shafts 022 are that two-way admittance does not produce pumping pressure, first piston section 04 and second due to the second unidirectional inlet 0221
The effective area of piston section 03 is the sectional area of first piston section 04.Safety valve 052 is connected with drain pipe 05.
Further, as shown in Fig. 4 to Fig. 5, a kind of specific embodiment party as high-low pressure well testing pump provided by the invention
Formula, the second unidirectional inlet 0221 include：The feed liquor being communicated between the second piston chamber 022 and the feed tube 06
Hole 074, the limiting plate 072 being fixed in the inlet opening 074, the bonnet 071 being movably set in the inlet opening 074 and
It is fixed on sealing spacing ring 073 in the inlet opening 074；On the conducting direction of the inlet opening 074, the limiting plate 072
It is located at the court of bonnet 071 towards the side of the second piston chamber 022, the sealing spacing ring 073 positioned at the bonnet 071
Coordinate to the side of the feed tube 06 and for being sealed with the bonnet 071.Specifically, the second unidirectional inlet
0221 uses the check valve of valve cover type.The inner connection second piston chamber 022 of inlet opening 074, outer end connection feed tube 06.Bonnet
071 is located in inlet opening 074, and limiting plate 072 and sealing spacing ring 073 are respectively positioned at the both sides of bonnet 071, limiting valve cap 071
Position.Limiting plate 072 can be fixture block structure that is netted or being arranged in the side wall of inlet opening 074；In second piston chamber 022
Liquid when outwards being flowed through inlet opening 074, limiting plate 072 be pressed on to be formed on sealing spacing ring 073 sealed；Liquid is through entering
When fluid apertures 074 flows into second piston chamber 022, limiting plate 072 is separated with sealing spacing ring 073, liquid is through limiting plate 07
2 flow into second piston chamber 022 with sealing the gap of spacing ring 073.
Further, as shown in figure 9, a kind of embodiment as high-low pressure well testing pump provided by the invention, institute
Stating switching mechanism includes being articulated with the rotating shaft 081 of the feed tube 06, interior and provided with pilot hole the base located at the feed tube 06
Seat 082 and the push rod 083 being arranged in the pilot hole；Described one end of rotating shaft 081 is penetrated in the feed tube 06, and is penetrated
The end of the rotating shaft 081 of the feed tube 06 is provided with eccentric wheel 084；Described one end of push rod 083 is resisted against the bias
The outer rim of wheel 084, the second unidirectional inlet 0221 described in other end ejection.Specifically, pedestal 082 is connected to the side wall of feed tube 06
On, the inlet opening 074 of the unidirectional inlet 0221 of face second, the pilot hole on pedestal 082 is directed at the second unidirectional inlet 0221
Bonnet 071, push rod 083 is penetrated in pilot hole, the top of push rod 083 abuts the bonnet 071 of the second unidirectional inlet 0221.Turn
The one end of axle 081 is penetrated outside feed tube 06 in feed tube 06, and one end that rotating shaft 081 is penetrated in feed tube 06 is provided with eccentric wheel
084, the bottom of push rod 083 is resisted against the outer rim of eccentric wheel 084.Rotating shaft 081, band movable eccentric wheel 084, the energy of eccentric wheel 084
The bottom of push rod 083 is enough promoted, the bonnet 071 of the second unidirectional inlet 0221 is separated with sealing spacing ring 073.Further
, rotating shaft 081 is located at one end outside feed tube 06, is provided with handle 085.
Further, as shown in figure 4, a kind of embodiment as high-low pressure well testing pump provided by the invention, institute
State first piston chamber 021 with the gap of first piston section 04 to coordinate, the first piston chamber 021 and the second piston chamber
The first sealing ring 091 that cooperation is slidingly sealed with the first piston section 04 is provided between 022.Specifically, first piston chamber 021
Certain interval be present between first piston section 04, avoid direct contact with, increase the service life.First sealing ring 091 is fixed on
Between the first piston chamber 021 and the second piston chamber 022, guarantee first piston section 04 is close with first piston chamber 021
Envelope, while the fixing seal effect of the first sealing ring 091 is more preferable, the life-span is longer.
Further, as shown in figure 4, a kind of embodiment as high-low pressure well testing pump provided by the invention, institute
Second piston section 03 and the gap of second piston section 03 is stated to coordinate, the initiating terminal of the second piston chamber 022 be provided with it is described
Second piston section 03 is slidingly sealed the second sealing ring 092 of cooperation.Specifically, second piston chamber 022 and second piston section 03 it
Between certain interval be present, avoid direct contact with, increase the service life.Initiating terminal of the second piston section 03 from second piston chamber 022
Insertion, the second sealing ring 092 are fixed on the initiating terminal of second piston chamber 022, ensure second piston section 03 and second piston chamber 022
Sealing, while the fixing seal effect of the second sealing ring 092 is more preferable, and the life-span is longer.
Further, as shown in Fig. 1,2,4 and 6, one kind specific implementation as high-low pressure well testing pump provided by the invention
Mode, the front-end and back-end of reciprocating drive mechanism 01 are respectively provided with a drive end；The pumping means has two and difference
It is connected to the front-end and back-end of the reciprocating drive mechanism 01.Specifically, reciprocating drive mechanism 01 uses hydraulic reciprocating driving machine
Structure 01, the both ends of its piston all, are provided with connecting rod 6 and form drive end, for driving.Being arranged on for two pumping means mirror images is past
The front-end and back-end of multiple drive mechanism 01.Pumping means positioned at the front end of reciprocating drive mechanism 01, its second piston section 03 connect
In the front end of the piston of reciprocating drive mechanism 01；Pumping means positioned at the rear end of reciprocating drive mechanism 01, its second piston section 03 connect
It is connected to the rear end of the piston of reciprocating drive mechanism 01.
Further, as shown in Figure 6 to 8, a kind of specific embodiment party as high-low pressure well testing pump provided by the invention
Formula, the reciprocating drive mechanism 01 include：
Hydraulic cylinder provided with power fluid import 11 and power fluid outlet 12, the inner chamber of the hydraulic cylinder includes being interconnected and axis
Parallel power section 13 and time liquid section 14, the sectional area of the power section 13 are more than the sectional area for returning liquid section 14；And
Piston in the cylinder chamber, the piston include lattice 21, the main part being sequentially connected from front to back
22 and power part 23, the sectional area of the power part 23 is more than the sectional area of the lattice 21, the lattice 21 with it is described
Return liquid section 14 and be slidingly sealed cooperation, the power part 23 is slidingly sealed cooperation, the lattice 21 and institute with the power section 13
Power part 23 is stated the inner chamber of the hydraulic cylinder is separated into back to the fluid chamber 31 successively from front to back, retreats chamber 32 and advance chamber 33, institute
State power fluid import 11 and connect the retrogressing chamber 32, the power fluid outlet 12 connects the advance chamber 33, set on the piston
Have for making the advance chamber 33 be connected with the back to the fluid chamber 31 or the advance chamber 33 is used to what the retrogressing chamber 32 connected
Property valve 4.
Specifically, hydraulic cylinder forms for Mechanical processing of casting, the inner chamber of hydraulic cylinder is in cylinder for two sections and is coaxially disposed dynamic
Power section 13 and time liquid section 14.The diameter of power section 13 is more than back the diameter of liquid section 14, power section 13 and the diameter difference for returning liquid section 14
Value can be directly process in hydraulic cylinder；The hole of cylinder can also be first processed in hydraulic cylinder, then in the hole of processing
Interior setting cylinder sleeve 16, come the diameter difference realized power section 13 and return liquid section 14.Piston moves back and forth in the inner chamber of hydraulic cylinder, living
Plug includes three sections and is more than in lattice 21, main part 22 and power part 23 cylindrical and be coaxially disposed, the diameter of power part 23
The diameter of lattice 21, the diameter of lattice 21 are more than the diameter of main part 22.Inertia valve 4 is arranged on piston, and inertia valve 4 is used
In by the advance chamber 33 with described in the XOR of back to the fluid chamber 31 retreat chamber 32 connect.When piston-advance is moved, inertia valve 4 is by before
Enter chamber 33 and connected with retreating chamber 32, while advance chamber 33 and back to the fluid chamber 31 are separated, hydraulic oil is after the entrance of power fluid import 11
Chamber 32 is moved back, afterwards into advance chamber 33, retreats in chamber 32 and advance chamber 33 and forms high pressure, is moved because the diameter of lattice 21 is less than
The diameter in power portion 23, the hydraulic oil propulsion power portion 23 in advance chamber 33, makes piston advance in cylinder chamber, back to the fluid chamber 31
In hydraulic oil from power fluid outlet 12 discharge.Piston-advance to behind the front end of cylinder chamber, because of self inertia send out by inertia valve 4
Raw switching, piston start setback.After inertia valve 4 switches, inertia valve 4 separates advance chamber 33 with retreating chamber 32, simultaneously will
Advance chamber 33 connects with back to the fluid chamber 31, and hydraulic oil enters from power fluid import 11 retreats chamber 32, retreats in chamber 32 and forms high pressure, makes
Obtaining hydraulic oil promotes piston to move backward, and the hydraulic oil in advance chamber 33 flows into back to the fluid chamber 31, exports 12 rows from power fluid afterwards
Go out.
Further, as shown in fig. 6, a kind of embodiment as super-pressure water pump provided by the invention, described
Hydraulic cylinder includes both ends for the cylinder body 15 of the tubulose of opening, the tubular jacket 16 in the inner chamber of cylinder body 15 and is covered in institute
State the closure portion 17 at the both ends of cylinder body 15；The axis of the cylinder sleeve 16 and the axis of the inner chamber of cylinder body 15 are coaxially disposed；It is described dynamic
In the side wall of the cylinder body 15, the cylinder sleeve 16 is located at the power fluid and entered for power liquid import 11 and power fluid outlet 12
Between mouth 11 and power fluid outlet 12；The closure portion 17 is provided with the through hole with sealing structure.The He of cylinder body 15 of tubulose
The closure portion 17 at both ends is assembled into hydraulic cylinder and is easy to processing and installation.The inner chamber of cylinder sleeve 16 forms back the separation of liquid section 14 and piston
Portion 21 coordinates, and the part of the unassembled cylinder sleeve 16 of cylinder chamber forms power section 13 and the power part 23 of piston coordinates.Closure portion
17 are provided with through hole to be sealed in through the connecting rod 6 of plunger pump unit, sealing structure between the through hole of connecting rod 6 and closure portion 17.
Further, as shown in Figure 6 to 8, a kind of specific embodiment party as high-low pressure well testing pump provided by the invention
Formula, the inertia valve 4 include valve pocket, in the valve pocket and for the reciprocating inertia on the piston movement direction
Valve element and the guiding mechanism being oriented to the inertia valve element on the piston movement direction；
The valve pocket include be coaxially disposed and be sequentially communicated from front to back front end conducting annular groove 44, front end step circles shell of column 41,
Cylindrical Connectivity Section 42, rear end step cylindrical section 43 and rear end conducting annular groove 45；The front end of the front end step circles shell of column 41 connects
The opening of the logical inner side of front end conducting annular groove 44, the diameter of the front end step circles shell of column 41 are more than the straight of the Connectivity Section 42
Footpath；The rear end of the rear end step cylindrical section 43 connects the opening of the inner side of rear end conducting annular groove 45, the rear end step circle
The diameter of shell of column 43 is less than the external diameter of rear end conducting annular groove 45；The front end conducting annular groove 44 connects institute by liquid back pipe 71
Back to the fluid chamber 31 is stated, the rear end conducting annular groove 45 connects the retrogressing chamber 32 by retreating pipe 73, and the Connectivity Section 42 is by preceding
Inlet pipe 72 connects the advance chamber 33；
The forward sealing portion includes：Lateral surface is used to block in the front end conducting annular groove 44 end seal before the tubular of side opening
Stifled section 81 and the forward end seal section 47 for coordinating with the front end step circles shell of column 41 sealing；
The back-end sealing portion includes：Side is used for the cylindrical rearward end closure for blocking side opening in the rear end conducting annular groove 45
Section 82 and the back-end sealing section 48 for coordinating with the rear end step cylindrical section 43 sealing；
The front end block section 81, the forward end seal section 47, the connecting portion 46, the back-end sealing section 48 and the rear end
Block section 82 is sequentially connected from front to back；
Conducting gap is formed between the Connectivity Section 42 and the connecting portion 46, the length of the Connectivity Section 42 is less than the connection
The length in portion 46.
The lateral surface of front end block section 81 blocks the opening of the inner side of front end conducting annular groove 44 so that front end turns on annular groove 44
Interior water flow pressure is radially acting in front end block section 81, and inertia valve element can't be driven to be moved forward and backward in valve pocket.Rear end
The side of block section 82 is used for the opening for blocking the inner side of rear end conducting annular groove 45 so that the current pressure in rear end conducting annular groove 45
Power is radially acting in rear end block section 82, and inertia valve element can't be driven to be moved forward and backward in valve pocket.
Specifically, front end conducting annular groove 44, front end stepped cylindrical that valve pocket is sequentially communicated and is coaxially disposed from front to back
Section 41, cylindrical Connectivity Section 42, rear end step cylindrical section 43 and rear end conducting annular groove 45.Conducting annular groove 44 in front end is in a ring, interior
Side connects for opening and with front end step circles shell of column 41.Front end step circles shell of column 41 includes the different cylinder of two coaxial diameters
Chamber, side wall form step-like.In cylinder, rear end step cylindrical section 43 includes the different circle of two coaxial diameters for Connectivity Section 42
Post chamber, side wall form step-like.In a ring, inner side connects for opening and with rear end step cylindrical section 43 rear end conducting annular groove 45.
Front end conducting annular groove 44, front end step circles shell of column 41, cylindrical Connectivity Section 42, rear end step cylindrical section 43 and rear end conducting annular groove
45 are process by Digit Control Machine Tool in piston.The preceding end seal for tubular that inertia valve element is sequentially coaxially set from front to back
Stifled section 81, the forward end seal section 47 of step circles cylindricality, the connecting portion 46 of cylinder, the back-end sealing section 48 of step circles cylindricality and circle
The rear end block section 82 of cylindricality.The length of the Connectivity Section 42 is less than the length of the connecting portion 46, inertia valve element is existed
Valve pocket moves forward and backward.
Inertia valve 4 in initial position, inserted in front end conducting annular groove 44, and front end is turned on into annular groove 44 by front end block section 81
The closure of interior side opening, while forward end seal section 47 inserts front end step circles shell of column 41, and limitation inertia valve element is front and rear in valve pocket
Shift position on direction, also front end further can be turned on into annular groove 44 and conducting gap cut-off；Front end block section 81 is with before
Seal section 47 is held by liquid back pipe 71 and conducting gap cut-off.Rear end block section 82 turns in annular groove 45 from rear end and extracted out, while after
End seal section 48 is separated with rear end step cylindrical section 43, and rear end is turned on to the inner side opening open connection conducting gap of annular groove 45；
Pipe 73 is retreated to connect with conducting gap by rear end step cylindrical section 43 and rear end conducting annular groove 45.
After inertia valve 4 switches, front end block section 81 turns in annular groove 44 from front end and extracted out, forward end seal section 47 and preceding end stand
Rank cylindrical section 41 separates so that the inner side opening open connection conducting gap of front end conducting annular groove 44, before liquid back pipe 71 is passed through
End conducting annular groove 44 and front end step circles shell of column 41 connect with conducting gap.Rear end conducting annular groove 45 is inserted in rear end block section 82
In, the interior side opening that rear end is turned on to annular groove 45 blocks, while back-end sealing section 48 inserts rear end step cylindrical section 41, and limitation is used
Property shift position of the valve element in valve pocket on fore-and-aft direction, also can further by rear end turn on annular groove 45 and conducting gap every
It is disconnected；Rear end block section 82 and back-end sealing section 48 will retreat pipe 73 and separate with conducting gap.
Further, as shown in Figure 6 to 8, a kind of specific embodiment party as high-low pressure well testing pump provided by the invention
Formula, the guiding mechanism include：Positioned at the valve pocket front end and the annular front end that is slidably matched with the front end block section 81
Directed cavity 83 and positioned at the valve pocket rear end and the cylindrical rearward end directed cavity 84 that is slidably matched with the rear end block section 82.
Guide effect is played in front end block section 81 and rear end block section 82, makes more compact structure.Specifically, front end directed cavity
83 annular cavity to be coaxially disposed with valve pocket, rear end directed cavity 84 are the circular cylindrical cavity being coaxially disposed with valve pocket.Pipe
The front end block section 81 of shape is inserted in front end directed cavity 83, is slidably matched and is oriented to；Rear end guide part 82 inserts rear end and is oriented to
Chamber 84, is slidably matched and is oriented to；So that inertia valve element can move forward and backward in valve pocket.
Further, as shown in Figure 6 to 8, a kind of specific embodiment party as high-low pressure well testing pump provided by the invention
Formula, the balance pipe 9 of the back to the fluid chamber 31 and the advance chamber 33 is communicated with the piston, and the front end face of lattice 21 is set
There is back liquid annular groove, the liquid back pipe 71 connects described time liquid annular groove；The rear end face of power part 23 is provided with advance annular groove,
The preceding inlet pipe 72 connects the advance annular groove；The one end of balance pipe 9 connection is described to go back to liquid annular groove, other end connection institute
Inlet pipe 72 before stating.Balance pipe 9 ensures that advance chamber 33 keeps certain flow to back to the fluid chamber 31, prevents balanced valve damage or piston card
After firmly, pressure is excessive in advance chamber 33, damages the hydraulic test of offer power fluid.It is in surround the axle of lattice 21 to return liquid annular groove
The toroidal cavity of line, return liquid annular groove and drainage is risen to power fluid, ensure the pressure stepless action of power fluid in lattice
On 21 front end face；Advance annular groove is in the toroidal cavity around the axis of power part 23, and advance annular groove rises to power fluid to be drawn
Stream acts on, and ensures the pressure stepless action of power fluid on the rear end face of the power part 23.
Do not make the technical characteristic illustrated in above-mentioned each embodiment, can with other embodiments
Technical characteristic is identical.
The relative position concepts such as " top ", " lower section " mentioned in the explanation of above-mentioned each embodiment, should be managed
The position relationship under conventional sense for embodiment of the invention is solved, it is used only for carrying out clearly embodiment
The explanation of Chu, limitation of the present invention can not be interpreted as.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. high-low pressure well testing pump, it is characterised in that including：Reciprocating drive mechanism（01）With by the reciprocating drive mechanism （01）The pumping means of driving；The pumping means includes：Connect the reciprocating drive mechanism（01）The pump housing（02）, the pump housing（02）It is interior mutually flat provided with interconnected and axis Capable first piston chamber（021）With second piston chamber（022）, the first piston chamber（021）Outside is provided with the first unidirectional feed liquor Mouthful（0211）With the first unidirectional liquid outlet（0212）, the second piston chamber（022）Outside is provided with the second unidirectional inlet （0221）With the second unidirectional liquid outlet（0222）；The reciprocating drive mechanism（01）With second piston section（03）Connection, the second piston section（03）With the second piston Chamber（022）It is slidingly sealed cooperation；The second piston section（03）Top and first piston section（04）Connection, the first piston section（04）Lived with described first Fill in chamber（021）It is slidingly sealed cooperation, and the first piston section（04）Sectional area be less than the second piston section（03）Cut Area；Located at the pump housing（02）Go up and there is main liquid outlet（051）Drain pipe（05）It is respectively communicated with described first and unidirectionally goes out liquid Mouthful（0212）With the described second unidirectional liquid outlet（0222）；AndLocated at the pump housing（02）Go up and there is main inlet（061）Feed tube（06）It is respectively communicated with the described first unidirectional feed liquor Mouthful（0211）With the described second unidirectional inlet（0221）, the feed tube（06）Interior be provided with is used for the described second unidirectional feed liquor Mouthful（0221）It is set to the switching mechanism of two-way admittance.
- 2. high-low pressure well testing pump according to claim 1, it is characterised in that：The second unidirectional inlet（0221）Bag Include：It is communicated in the second piston chamber（022）With the feed tube（06）Between inlet opening（074）, be fixed on the feed liquor Hole（074）In limiting plate（072）, be movably set in the inlet opening（074）In bonnet（071）And enter described in being fixed on Fluid apertures（074）Middle sealing spacing ring（073）；In the inlet opening（074）Conducting direction on, the limiting plate（072）It is located at The bonnet（071）Towards the second piston chamber（022）Side, the sealing spacing ring（073）Positioned at the bonnet （071）Towards the feed tube（06）Side and be used for and the bonnet（071）Sealing coordinates.
- 3. high-low pressure well testing pump according to claim 1, it is characterised in that：The switching mechanism include being articulated with it is described enter Liquid pipe（06）Rotating shaft（081）, located at the feed tube（06）Pedestal interior and provided with pilot hole（082）And it is arranged in described Push rod in pilot hole（083）；The rotating shaft（081）One end penetrates the feed tube（06）It is interior, and penetrate the feed tube （06）The rotating shaft（081）End be provided with eccentric wheel（084）；The push rod（083）One end is resisted against the eccentric wheel （084）Outer rim, the second unidirectional inlet described in other end ejection（0221）.
- 4. high-low pressure well testing pump according to claim 1, it is characterised in that：The first piston chamber（021）With described One piston section（04）Gap coordinates, the first piston chamber（021）With the second piston chamber（022）Connectivity part be provided with it is described First piston section（04）It is slidingly sealed the first sealing ring of cooperation（091）.
- 5. high-low pressure well testing pump according to claim 1, it is characterised in that：The second piston section（03）With described second Piston section（03）Gap coordinates, the second piston chamber（022）Initiating terminal be provided with and the second piston section（03）Slide close Seal the second sealing ring coordinated（092）.
- 6. high-low pressure well testing pump according to claim 1, it is characterised in that：The reciprocating drive mechanism（01）Front end and Rear end is respectively provided with a drive end；The pumping means has two and is connected to the reciprocating drive mechanism（01）Before End and rear end.
- 7. the high-low pressure well testing pump according to claim any one of 1-6, it is characterised in that：The reciprocating drive mechanism（01） Including：Provided with power fluid import（11）Exported with power fluid（12）Hydraulic cylinder, the inner chamber of the hydraulic cylinder include being interconnected and The power section of diameter parallel（13）With time liquid section（14）, the power section（13）Sectional area be more than and described return liquid section（14）Cut Area；AndPiston in the cylinder chamber, the piston include the lattice being sequentially connected from front to back（21）, main body Portion（22）And power part（23）, the power part（23）Sectional area be more than the lattice（21）Sectional area, the separation Portion（21）With described time liquid section（14）It is slidingly sealed cooperation, the power part（23）With the power section（13）It is slidingly sealed and matches somebody with somebody Close, the lattice（21）With the power part（23）The inner chamber of the hydraulic cylinder is separated into back to the fluid chamber successively from front to back （31）, retreat chamber（32）With advance chamber（33）, the power fluid import（11）Connect the retrogressing chamber（32）, the power fluid goes out Mouthful（12）Connect the advance chamber（33）, the piston, which is provided with, to be used to make the advance chamber（33）With the back to the fluid chamber（31）Even Lead to or make the advance chamber（33）With the retrogressing chamber（32）The inertia valve of connection（4）.
- 8. high-low pressure well testing pump according to claim 7, it is characterised in that：The inertia valve（4）Including valve pocket, positioned at institute State in valve pocket and reciprocating inertia valve element and the inertia valve element is transported in the piston on the piston movement direction The guiding mechanism being oriented on dynamic direction；The valve pocket includes the front end conducting annular groove for being coaxially disposed and being sequentially communicated from front to back（44）, front end step circles shell of column （41）, cylindrical Connectivity Section（42）, rear end step cylindrical section（43）Annular groove is turned on rear end（45）；The front end step circles shell of column （41）Front end connect front end conducting annular groove（44）The opening of inner side, the front end step circles shell of column（41）Diameter be more than The Connectivity Section（42）Diameter；The rear end step cylindrical section（43）Rear end connect rear end conducting annular groove（45）Inner side Opening, the rear end step cylindrical section（43）Diameter be less than the rear end conducting annular groove（45）External diameter；Lead the front end Logical annular groove（44）Pass through liquid back pipe（71）Connect the back to the fluid chamber（31）, the rear end turns on annular groove（45）Managed by retreating（73） Connect the retrogressing chamber（32）, the Connectivity Section（42）Pass through preceding inlet pipe（72）Connect the advance chamber（33）；The forward sealing portion includes：Lateral surface is used to block the front end conducting annular groove（44）The tubular front end of interior side opening Block section（81）With for the front end step circles shell of column（41）Seal the forward end seal section coordinated（47）；The back-end sealing portion includes：Side is used to block the rear end conducting annular groove（45）The cylindrical rearward end envelope of interior side opening Stifled section（82）With for the rear end step cylindrical section（43）Seal the back-end sealing section coordinated（48）；The front end block section（81）, the forward end seal section（47）, the connecting portion（46）, the back-end sealing section（48）With The rear end block section（82）It is sequentially connected from front to back；The Connectivity Section（42）With the connecting portion（46）Between formed conducting gap, the Connectivity Section（42）Length be less than institute State connecting portion（46）Length.
- 9. high-low pressure well testing pump according to claim 8, it is characterised in that：The guiding mechanism includes：Positioned at the valve Chamber front end and with the front end block section（81）The annular front end directed cavity being slidably matched（83）And after the valve pocket End and with the rear end block section（82）The cylindrical rearward end directed cavity being slidably matched（84）.
- 10. high-low pressure well testing pump according to claim 7, it is characterised in that：Described time liquid is communicated with the piston Chamber（31）With the advance chamber（33）Balance pipe（9）, the lattice（21）Front end face is provided with back liquid annular groove, described time liquid Pipe（71）Connection is described to return liquid annular groove；The power part（23）Rear end face is provided with advance annular groove, the preceding inlet pipe（72）Even Lead to the advance annular groove；The balance pipe（9）One end connection is described to return liquid annular groove, and the other end connects the preceding inlet pipe （72）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710764849.XA CN107387357B (en) | 2017-08-30 | 2017-08-30 | High-low pressure well testing pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710764849.XA CN107387357B (en) | 2017-08-30 | 2017-08-30 | High-low pressure well testing pump |
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| Publication Number | Publication Date |
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| CN107387357A true CN107387357A (en) | 2017-11-24 |
| CN107387357B CN107387357B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710764849.XA Active CN107387357B (en) | 2017-08-30 | 2017-08-30 | High-low pressure well testing pump |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2409349Y (en) * | 2000-02-17 | 2000-12-06 | 韩云吉 | High-displacement automatic reversing horizontal double-cylinder plunger pump |
| CN102536925A (en) * | 2012-01-05 | 2012-07-04 | 解始建 | Hydraulic automatic reciprocating booster |
| CN203892134U (en) * | 2013-06-08 | 2014-10-22 | 张晔 | Piston type refrigeration compressor |
| CN204804795U (en) * | 2015-05-18 | 2015-11-25 | 中国石油大学(华东) | Energy -conserving water injection supercharging equipment of two effects of oil well |
| CN207297252U (en) * | 2017-08-30 | 2018-05-01 | 张家口德中钻探机械有限责任公司 | High-low pressure well testing pumps |
-
2017
- 2017-08-30 CN CN201710764849.XA patent/CN107387357B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2409349Y (en) * | 2000-02-17 | 2000-12-06 | 韩云吉 | High-displacement automatic reversing horizontal double-cylinder plunger pump |
| CN102536925A (en) * | 2012-01-05 | 2012-07-04 | 解始建 | Hydraulic automatic reciprocating booster |
| CN203892134U (en) * | 2013-06-08 | 2014-10-22 | 张晔 | Piston type refrigeration compressor |
| CN204804795U (en) * | 2015-05-18 | 2015-11-25 | 中国石油大学(华东) | Energy -conserving water injection supercharging equipment of two effects of oil well |
| CN207297252U (en) * | 2017-08-30 | 2018-05-01 | 张家口德中钻探机械有限责任公司 | High-low pressure well testing pumps |
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|---|---|
| CN107387357B (en) | 2023-08-04 |
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Inventor after: Zuo Jianping Inventor after: Wang Liming Inventor after: Zheng Hailiang Inventor before: Zuo Jianping Inventor before: Wang Limin Inventor before: Zheng Hailiang |
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Effective date of registration: 20230824 Address after: 076250 Zone 210/B, 2nd Floor, Building B, Enterprise Incubation Building, No. 8 Shenkong Road, High tech Industrial Development Zone, Zhangjiakou City, Hebei Province Patentee after: Zhangjiakou Yixian Technology Engineering Co.,Ltd. Address before: No. 1, Fuqiang Road, Xishi Industrial Cluster District, Zhangjiakou City, Hebei Province, 076250 Patentee before: ZHANGJIAKOU DEZHONG DRILLING MACHINERY CO.,LTD. |