CN2502037Y - Double-cylinder single-acting high pressure reciprocating pump - Google Patents
Double-cylinder single-acting high pressure reciprocating pump Download PDFInfo
- Publication number
- CN2502037Y CN2502037Y CN 01259867 CN01259867U CN2502037Y CN 2502037 Y CN2502037 Y CN 2502037Y CN 01259867 CN01259867 CN 01259867 CN 01259867 U CN01259867 U CN 01259867U CN 2502037 Y CN2502037 Y CN 2502037Y
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- hydraulic cylinder
- fluid
- high pressure
- cylinders
- pressure reciprocating
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- Expired - Fee Related
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Abstract
The utility model discloses a double-cylinder single-acting high pressure reciprocating pump used on the oil fields, consisting of a machine frame, two slave fluid cylinders, two actuating hydraulic cylinders and a valve block. One slave fluid cylinder and one actuating hydraulic cylinder are positioned on a single axial line, forming a slave pump group. The cylinder rods of the actuating hydraulic cylinders are connected with the pistons of the slave fluid cylinders. Two slave pumps are positioned in parallel on the machine frame. The valve block is positioned on the large chambers side of the slave fluid cylinders and has two sets of fluid discharge valves and fluid suction valves. The fluid suction valves and the discharge valves are mutually communicated. Each set of the fluid suction valves and the fluid discharge valves is communicated with one larger chamber of the slave fluid cylinder. The double-cylinder single-acting high pressure reciprocating pump is driven by the actuating hydraulic cylinders. Both the slave fluid cylinders and the actuating hydraulic cylinders are arranged on the same machine frame, not only lessening the size of the entire device but also realizing steady operation in work, solving a plurality of problems that machine-driven high-pressure reciprocating pumps have.
Description
Technical field
The utility model relates to a kind of oilfield high pressure reciprocating pump, especially a kind of twin-tub single-acting high pressure reciprocating pump.
Background technique
At present, the oilfield of production application both at home and abroad all is mechanically operated high pressure reciprocating pump with pump, this high pressure reciprocating pump is by the connecting rod transmission, and its structural type and working method have determined it to have following shortcoming: pump body structure is huge, heavy, the manufacture cost height; Parts such as pump valve, piston, cylinder sleeve are easy to damage, working life is short; Work is not steady, pressure surge is excessive; The inefficiency of pump can not satisfy the more requirement of high pressure.For improving the performance of high pressure reciprocating pump, various trials have been carried out both at home and abroad, comprising replacing mechanical drive mode with hydraulic control mode, and obtain good effect, through exploration for many years, on high pressure reciprocating pump, adopt hydraulic control system to replace mechanical transmission, become the development trend of related domain.
Summary of the invention
The purpose of this utility model provides a kind of twin-tub single-acting high pressure reciprocating pump that adopts hydraulic control mode control.
For finishing task of the present utility model, this twin-tub single-acting high pressure reciprocating pump is made of frame, two operational hydraulic cylinders, two driving oil hydraulic cylinders, valve pieces; An operational hydraulic cylinder and a driving oil hydraulic cylinder are installed and are constituted a working pump group on an axis, and the piston rod that drives oil hydraulic cylinder links to each other with the piston of operational hydraulic cylinder, and two working pump groups are installed on the frame side by side; The valve piece is installed on the frame of the big chamber of operational hydraulic cylinder one side, has on the valve piece that two groups of liquid suck, expulsion valve, and liquid suction valve and liquid expulsion valve in two groups of valves are interconnected separately, and every group of liquid suction, expulsion valve are connected with the big chamber of an operational hydraulic cylinder.
Described valve piece is combined by two discrete liquid suction valves and two liquid expulsion valves and a passage block.
Setting keeps at a certain distance away between operational hydraulic cylinder in described every group of working pump group and the driving oil hydraulic cylinder, this distance is complementary with the working stroke of operational hydraulic cylinder piston, frame is provided with the guiding device that drives the hydraulic cylinder piston rod motion, drives between hydraulic cylinder piston rod and the operational hydraulic cylinder piston to link to each other by a transition pipe nipple.
The utility model twin-tub single-acting high pressure reciprocating pump is by Driven by Hydraulic Cylinder, operational hydraulic cylinder as pump is installed on the frame with the driving oil hydraulic cylinder, whole device volume is reduced, and work the time operates steadily, eliminated the problems that the mechanical transmission high pressure reciprocating pump exists, satisfied the requirement of current oilfield production high pressure reciprocating pump.
Description of drawings
Fig. 1 is this twin-tub single-acting high pressure reciprocating pump plan view;
Fig. 2 is by being done sectional view along A-A among Fig. 1.
Embodiment
As shown in Figure 1, an operational hydraulic cylinder 2 and a driving oil hydraulic cylinder 3 are formed a working pump group, two groups of working pump groups are installed on the frame 1 side by side, valve piece 4 is installed on the frame 1 of operational hydraulic cylinder 2 big chambeies one side, valve piece 4 is combined by two discrete suction valves 41, two expulsion valves 42 and a passage block 43, two suction valves 41 are connected, two expulsion valves 42 are connected, a suction valve 41 and an expulsion valve 42 constitute one group, and one group of suction, expulsion valve are connected with the big chamber of an operational hydraulic cylinder 2 by passage block 43;
As shown in Figure 2, in every group of working pump group, the piston rod 31 that drives oil hydraulic cylinder 3 links to each other with the piston 21 of operational hydraulic cylinder 2 by a transition pipe nipple 5, operational hydraulic cylinder 2 is provided with the guide track 6 parallel with piston rod 31 with driving frame 1 between the oil hydraulic cylinder 3, and the guide pad 32 that matches with guide track 6 is installed on the piston rod 31;
During work, hydraulic control system makes two to drive oil hydraulic cylinder 3 alternations, the piston rod 31 of two driving oil hydraulic cylinders 3 alternately drives piston 21 motions of two operational hydraulic cylinders 2, motion along with operational hydraulic cylinder 2 pistons 21, liquid alternately is inhaled into and is discharged from the big chamber of two operational hydraulic cylinders 2 by two suction valves 41 on the valve piece 4 and two expulsion valves 42, two operational hydraulic cylinder 2 periodic duties under the drive of two driving oil hydraulic cylinders 3, thereby the flow of liquid of formation pressure, stability of flow.
Because the piston 21 of operational hydraulic cylinder 2 moves to stablize constant speed under the drive of piston rod 31 during work, regulate the pressure oil flow velocity in the input driving oil hydraulic cylinder 3 big chambeies, can change the operating rate of piston rod 31, thereby change the operating rate of the piston 21 of operational hydraulic cylinder 2, drive 3 of oil hydraulic cylinders in addition and take very little space, therefore this twin-tub single-acting high pressure reciprocating pump not only makes the volume of entire equipment reduce greatly, and stable working, solved the unvanquishable problem of mechanical transmission high pressure reciprocating pump for a long time, adapt to the requirement that modern oilfield is produced, and because this high pressure reciprocating pump has adopted separate assembling valve piece 4 to be connected transition pipe nipple 5 with piston, thereby make this high pressure reciprocating pump be convenient to maintaining.
Claims (3)
1. a twin-tub single-acting high pressure reciprocating pump is characterized in that, is made of frame (1), two operational hydraulic cylinders (2), two driving oil hydraulic cylinders (3), valve pieces (4); An operational hydraulic cylinder (2) is installed with a driving oil hydraulic cylinder (3) and is constituted a working pump group on an axis, and the piston rod (31) of oil hydraulic cylinder (3) links to each other with the piston (21) of fluid cylinder (2), and two working pump groups are installed on the frame (1) side by side; Valve piece (4) is installed on the frame (1) of the big chamber of two fluid cylinders (2) one side, two groups of liquid suctions, expulsion valve are arranged on the valve piece (4), liquid suction valve and liquid expulsion valve in two groups of valves are interconnected separately, and every group of liquid suction, expulsion valve are connected with the big chamber of an operational hydraulic cylinder (2).
2. twin-tub single-acting high pressure reciprocating pump as claimed in claim 1 is characterized in that, described valve piece (4) is combined by two discrete liquid suction valves (41) and two liquid expulsion valves (42) and a passage block (43).
3. twin-tub single-acting high pressure reciprocating pump as claimed in claim 1 or 2, it is characterized in that, setting keeps at a certain distance away between operational hydraulic cylinder (2) in described every group of working pump group and the driving oil hydraulic cylinder (3), this distance is complementary with the working stroke of operational hydraulic cylinder (2) piston (21), frame (1) is provided with and drives hydraulic cylinder piston rod (31) linear motion guide device, drives between hydraulic cylinder piston rod (31) and operational hydraulic cylinder (2) piston (21) to link to each other by a transition pipe nipple (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01259867 CN2502037Y (en) | 2001-08-23 | 2001-08-23 | Double-cylinder single-acting high pressure reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01259867 CN2502037Y (en) | 2001-08-23 | 2001-08-23 | Double-cylinder single-acting high pressure reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502037Y true CN2502037Y (en) | 2002-07-24 |
Family
ID=33668147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01259867 Expired - Fee Related CN2502037Y (en) | 2001-08-23 | 2001-08-23 | Double-cylinder single-acting high pressure reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2502037Y (en) |
-
2001
- 2001-08-23 CN CN 01259867 patent/CN2502037Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |