Operation method of piston vertical hybrid machine of dimensional action and method for its implementation

FIELD: machine engineering.

SUBSTANCE: piston machine contains a cylinder 1, divided by the piston 2 into gas 3 and fluid chambers 4. They are connected to the gas and liquid source and consumer through the reverse suction 5 and 6 and discharge valves 7 and 8. The reverse self-operated liquid valve 9 is installed at the piston bottom 2 opposite to the suction valve 5 of the cavity 3, connected through the hole 10 with chamber 3 and through the channels 11 with chamber 4. The spring 12 of the valve 9, is leant through the glass 13 on the adjusting screw 14. During the compression and liquid discharge in the liquid chamber 4, due to the leakages of fluid through the piston seal, a layer of the liquid over the piston 2 in the gas chamber 3 is created, which is evacuated at the end of gas injection process into the liquid subpiston chamber. The liquid volume, exceeding the dead volume of the chamber 3 is left over the piston 2 by the end of the gas injection process. The excess liquid flows to the chamber 4 through the opened valve 9.

EFFECT: power efficiency of the gas chamber work cycle is improved, the hydraulic impact occurrence conditions are eliminated, the operating pressures range of the liquid chamber is expanded.

4 cl, 4 dwg

 



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: pump U-like piston rod end chamber comprises gas damper composed by gas ply is periodically filled with gas from compressor head end chamber. This fill can occur in piston one double stroke. Pump-compressor consists of cylinder (1) with gas and fluid check valves accommodates U-like piston (6) dividing cylinder (1) into two parts, top compressor chamber (7) and bottom pump section (8). Float (9) divides said U-like recess into two parts, i.e. gas ply (10) and fluid chamber (11), and has ledge (12) to get, at fluid level increase in chamber (11), in contact with spring-loaded element (14) in valve (15) body to shut off flow channel (17). Device to retain valve (15) in open/close positions consists of spring-loaded balls (18) and two bores (19). Cylinder (1) cooling jacket (22) has bore (23) designed to direct forced liquid coolant via jacket (22). Gas ply (10) is retained in preset volume irrespective of gas content in transferred fluid and its solubility as well as operating conditions of the device (temperature, gas and fluid suction and delivery pressure, rpm, etc.).

EFFECT: higher operating performances.

3 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: machine consists of a cylinder 1 with a differential piston of U-shaped longitudinal section and two cavities: 3-pump one and 4 - compressor one. The inner part of the piston 2 is mating the outer surface of a crosshead lead-in segment 5 of U-shaped longitudinal section, the crosshead 6 is fitted by the inner lead-in segment along which the crosshead itself is sliding, the crosshead is hingedly coupled to a connecting rod 7 of a crank drive of the machine and coupled to the piston 2 via a rod 8. The piston 2 is fitted by a piston seal 9, and the crosshead lead-in 5 - by a seal 10. The inner cavity 12 of the piston 2 is connected with the suction line by a channel 11. Back pressure gas valves 13 and 14 are used to arrange the operation of the compressor cavity 4, fluid valves of the same type 15 and 16 - to arrange the operation of the pump cavity 3. U-shaped design of the piston and the crosshead lead-in provides for the creation of long seals at short length of the cylinder and piston group.

EFFECT: high leakproofness of operating cavities and reduced cross vibrations deteriorating the unit performance.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to machine building and oil-and-gas industry and can be used for transfer of gas-fluid medium. Piston pump comprises housing 1 to accommodate piston 3 with ring 4 or slotted seal 5 to make the working chamber 2. Working chamber is connected to intake 6 and delivery 7 lines, via intake and delivery valves 8, 9.Gas separator 11 with gas discharge channel 12 is connected to working chamber top part 10. Gas separator is composed by low-emission throttle 13. Said throttle features fluid flow rate at maximum pump delivery pressure not over 1% of the pump delivery.

EFFECT: stable feed.

6 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: unit includes beam-pumping unit 3, piston-type compressor 5 installed on frame, as well as system of pipelines integrating them. Under frame 4 of beam-pumping unit 3 of the first compression stage (module) of gas or gas-liquid mixture there fixed horizontally or with higher location of working zone, rigidly or freely to some extent is piston-type compressor 5 containing operating cylinder 7, suction valve 8, discharge valve 9, plunger 10 with polished stock 11. At that, working zone 12 of cylinder 7 of piston-type compressor 5 through suction valve 8 is connected to pipeline 13 of gas or gas-liquid low pressure mixture, and through discharge valve 9 of piston-type compressor 5 is connected in its turn to high pressure pipeline 14. If there is the second module in compressor unit, gas or gas-liquid mixture is supplied via high pressure pipeline 14 of the first compression stage to the second compression stage (to the second module) to piston-type compressor 24 of the second compression stage to working zone 26 of cylinder 25 through suction valve.

EFFECT: increasing efficiency and reliability of operation owing to increasing efficiency and reliability of operation of piston-type compressors intended for utilisation with any ratio of gas and liquid.

29 cl, 4 dwg

FIELD: oil-and-gas industry.

SUBSTANCE: invention is provided for usage in oil-producing industry for pumping-over of well product. Pumping-over method of liquid-gas mixture includes feeding of pumped-over portion of liquid-gas mixture into top part of vertically located tank, allowing constant cross-section by height and contenting working fluid. Separation of liquid-gas mixture portion for two parts, from which the first top part allows required specific density, and the second part allows specific density higher than required specific density Deposition of the second part of mixture into working fluid. Displacement of working fluid together with located in it of second part of liquid-gas mixture from tank in its bottom part under pressure of liquid-gas mixture portion. Treatment of working fluid. Pressing of liquid-gas mixture portion in tank under pressure of working fluid, returned into tank in its bottom part. Withdrawing of pressed liquid-gas mixture portion from tank. Device for pumping-over of liquid-gas mixture contains working chamber with vertically located tank of identical cross-section with working fluid, in which it is located with ability free movement upwards-downwards inside the tank mediums separator of float-type, allowing specific density, equal to required specific density of pumped-over mixture.

EFFECT: improvement of conditions of scaling and regulation of equipment productivity.

10 cl, 5 dwg

FIELD: oil producing industry; boost pump-compressor machines.

SUBSTANCE: proposed boost pump-compressor plant includes positive displacement pump with compression chambers, drive, manifold with feed pump communicating with tank for working liquid, line to feed gas into compression chambers. Discharge piping communicates with compression chambers and consumer. Unit to separate working liquid is installed in discharge piping with liquid outlet device communicating with working liquid tank. Working liquid tank is made two-compartment, in form of intake tank for removed liquid and service tank for working liquid connected by pipeline with removed liquid flow meter installed in its lower part and with control and shutoff valves. Feed liquid flow meter is installed in manifold at feed outlet. Outlet of pipeline from receiving tank for removed liquid is arranged higher than base of intake tank and inlet into tank for working liquid, and outlet if pipeline from tank for working liquid is arranged higher than inlet of feed pump. Receiving tank for removed liquid can be furnished with pipeline to let out separated gas.

EFFECT: improved reliability and accuracy of determining volumetric content of liquid in pumped in gas-liquid mixture.

4 cl, 1 dwg

FIELD: pumping engineering.

SUBSTANCE: method comprises forming a fluid piston in the chamber of a rotor-piston multi-phase pump under the action of centrifugal forces and displacing gas with this piston. Each piston defines working and pumping chambers together with the cylinder. During sucking stroke, the working chamber is filled with gas and pumping chamber is filled with liquid. During pumping stroke, the gas is displaced from the working chamber to the pumping line, and liquid enters the working chamber through the check valve. Under the action of centrifugal force, a fluid piston is formed in front of the pump piston. The volume of liquid displaced from the pumping chamber to the working chamber is no less than the volume of the liquid loss during the pumping stroke.

EFFECT: enhanced reliability.

1 dwg

FIELD: oil and gas producing industry.

SUBSTANCE: invention can be used at drilling, completing and operating of oil and gas wells for compression and delivery of gas or gas-liquid mixtures. Proposed method of compression of gas or gas-liquid mixture is based on differential delivery of gas or gas-liquid mixture by means of pass-through liquid piston moved in additional compression chamber by movement of two or more three-dimensional displacers of different capacity and building different pressure in working chamber. One of displacers is arranged in part of working chamber separated from compression chamber by means of bridge. Separated part communicates with compression chamber by means of channel furnished with controllable valve. During part of suction stroke (or complete suction stroke as in some cases), part of working chamber separated by bridge is isolated from compression chamber by controllable valve. When valve is closed, suction by displacer found in isolated part of working chamber takes place from liquid line. It provides getting of portion of liquid required for compensation of irrevocable losses in liquid piston or getting of required gas-liquid proportion. During suction stroke, when controllable valve is open, suction of liquid is provided from compression chamber. All displacers provided reverse stroke of pass-through liquid piston. Simultaneously filling of additional compression chamber with gas or gas-liquid mixture takes placer. Time of "isolation" is determined by algorithm of operation of controllable valve depending of required amount of back-up liquid added into pass-through liquid piston at each cycle. At delivery stroke, forcing out of liquid from working chamber into compression chamber is provided successively by all displacer, starting from displacer of maximum capacity but minimum pressure. Each following displacer features lesser capacity as compared with previous one, but it develops higher pressure.

EFFECT: increased volumetric efficiency, possibility of control of gas-liquid ratio of delivered medium.

1 dwg

FIELD: oil-and-gas producing industry; equipment for oil and gas wells.

SUBSTANCE: proposed unit is used for performing jobs inside pipes with the use of gas of safety composition generated by unit or associated gas from external source, as well as for reduction of bottom-hole pressure for intensification of fluid flow. Used as inert gas sources are exhaust gases from two internal combustion engines: chassis engine and compressor engine which are cleaned and mixed in gas booster pump at required ratio and are delivered to well. Safe composition of mixture is obtained by regulating amount of oxygen in exhaust by means of membrane washers fitted in exhaust branch pipes of each engine; accuracy of proportioning of each component is ensured by availability of individual hydraulic drive in each pump.

EFFECT: extended functional capabilities; enhanced ecological safety.

5 cl, 2 dwg

FIELD: oil producing industry.

SUBSTANCE: invention relates to drilling, completion and operation of oil and gas wells. Proposed device includes displacement type hydraulic supercharger consisting of row of sections, compression chambers communicating with supercharger, each containing suction valve to deliver gas or gas-liquid mixture from independent source into chamber. Delivery valve communicating with consumer is arranged over suction valve. Pump to deliver feed liquid through suction valve of supercharger is installed to form hydraulic seal in compression chamber. Compression chambers are made in form of separate compression module connected by pipelines with hydraulic part of supercharger. Outer diameter of compression chamber (dch.out is found from expression where dw is thickness of chamber wall; ds is diameter of supercharger; n is speed of supercharger shaft, min-1; r is supercharger half travel; where L is length of connecting rod; g is free fall acceleration. Diameter of pipeline (dpl) connecting compression chamber with hydraulic part of supercharger complies to the following equation: where α is angle between axis of pipeline and vertical. Capacity of said pipeline (Vpl) complies with relative Vplsat·n·bl-Vs where τsat is time of saturation of liquid with gas at working pressures; where Ql is flow rate of liquid; Vs is volume described by supercharger.

EFFECT: increased capacity, improved repairability.

4 cl, 1 dwg

FIELD: oil-producing industry and oil-refining industry.

SUBSTANCE: the invention presents a device for transfer of gassy liquids with mechanical impurities. (57) The device is intended for use in the oil-producing industry and oil-refining industry in the systems of the field l gathering and transportation of the oil-and-gas mixtures with mechanical impurities. The device contains a fixed stepped cylinder with a mounted in it differential plunger consisting of two pistons of different diameters. The pistons form a receiving and a basic chambers of different diameters and an additional chamber of high pressure equipped with a gasket rod and a sealing tool. The pistons are fused among themselves by a branch-pipe with a filter, which is hydraulically connecting the receiving and the basic chambers. The device has an additional chamber of low pressure equipped with a sand anchor and hydraulically connected by a pipeline of low pressure and through a valve with a cavity of the receiving chamber. The basic chamber is supplied with the settler for mechanical impurities. The difference of the areas of the cross-sections of the differential plunger in its smallest size and the gasket rod is equal to 1/2 of the cross-section area of the cylinder with its biggest diameter. The design of the device allows to increase efficiency of systems of the field gathering and the transport of petroleum, and also to reduce power and material inputs.

EFFECT: the invention ensures increased efficiency of systems of the field gathering and transportation of petroleum and to reduce power and material inputs.

2 cl, 1 dwg

FIELD: compression and delivery of gases and gas-and-liquid mixtures at drilling, completion and operation of gas and oil wells.

SUBSTANCE: proposed device includes reciprocating supercharger provided with crank drive, compression chamber at sectional area varying in height provided with inlet gas valve and delivery valve and collector for delivery of gas and discharge of medium being delivered. Delivery and inlet gas valves are made in form of single valve unit. Inlet gas valve is mounted inside delivery valve in center of said valve unit; inlet valve collector is made in form of guide for delivery valve. Delivery valve is made in form of plate having shape of torus with double-sided seal and seat with two taper surfaces located over periphery of valve unit. Compression chamber is cylindrical in shape and is provided with detachable insert having profiled outer surface aligned with kinematics of supercharger drive. Insert is mounted as close as possible to inlet gas valve in vertical position. Insert has flat upper surface whose area exceeds area of gas inlet valve seat; insert is provided with vertical fins.

EFFECT: enhanced stabilization of hydraulic seal; facilitated maintenance and repair of device.

5 cl, 1 dwg

Compressor // 2259499

FIELD: positive-displacement machines or pumps.

SUBSTANCE: compressor comprises hydraulic back-pressure valve, compression chamber connected with the reciprocating supercharger and provided with sucking gas valve, valve for supplying fluid for hydraulic back-pressure valve, and delivery valve. The top section of the chamber is provided with unmovable solid permeable insert made of heat conducting material and metallic balls restricted from bellow by metallic grid. The bottom boundary of the solid insert is mounted at a distance from the top point of the compression chamber which is defined by the position of the hydraulic back-pressure valve table at the moment of opening delivery valve.

EFFECT: enhanced efficiency.

2 cl, 1 dwg

FIELD: oil and gas well drilling, completing and operating.

SUBSTANCE: invention relates to compression and transfer of gas, particularly, to device for topping-up low-pressure up to 20-30 MPa and its delivery to consumer. Proposed device contains reciprocating booster with drive, vertical cylindrical compression chamber with suction gas and delivery valves in upper part and liquid valve, mechanical gas-liquid separator and feed pump. Mechanical gas-liquid separator is made in form of float overlapping cross section of chamber. Floatability of float is defined by expression where is density of separator; is density of liquid. Holes are made over periphery of float to pass hydraulic seal liquid, and drive of booster is made high-speed. Summary of through holes in float is chosen to provide passing of amount of liquid Vl providing stability phase from equation Vl = hff*Scch, where hff is depth of float underfooding in top dead center; Scch is area of cross section of compression chamber. Mechanical gas-liquid separator is made in form of cylindrical float with height h meeting the following inequality: where n is number of booster drive revolutions; is liquid density; is density of separator. Compression chamber can be provided with inner conical surface in upper part, and upper of float can be made with conical form corresponding to said conical surface. Longitudinal slots to pass hydraulic seal liquid can be made in upper part of float. Summary through section of all slots should provide stability of delivery phase, and height of float should comply with inequality stated above.

EFFECT: improved efficiency of operation of device owing to prevention of clogging of capillary channels in mechanical gas-liquid separator.

4 cl, 2 dwg

FIELD: gas and oil producing industry.

SUBSTANCE: pump is designed for transfer of gases and gas-liquid mixtures. Proposed pump has hydraulic unit each space of which consists of displacement part with displacer and suction valve for liquid. Compression part contain delivery valve and gas intake valve placed under delivery valve. Dividing unit with piston is installed between displacement and compression parts. Said unit is made in form of nonreturn valve whose seat is located between displacement and compression parts of working space. Valve plate is suspended from piston reciprocating in compression part in time with displacement of displacer in displacement part of working space. Valve plate is suspended from piston for adjusting length of suspension, and seat mounting place can be adjusted in height of location.

EFFECT: provision of topping up of gas or gas-liquid mixture at minimum consumption of liquid without additional booster feed pump.

1 dwg

FIELD: oil industry.

SUBSTANCE: plant comprises pump chamber with sucking and pressure passages, pressure pipe with sucking valve that connects the space downstream of the pipe with the space of the pump chamber, and cable. The top section of the pump chamber made of cupola for spraying and burning fuel receives batcher of oxygen and unit for controllable frequency of igniting. One of the faces of the pressure pipe is sealed hermetically. The pump chamber together with the batcher and igniting unit can be mounted inside and/or outside the pressure pipe. The gas of the fluid is used in the pump chamber as a fuel.

EFFECT: enhanced reliability and reduced cost.

5 cl, 1 dwg

FIELD: oil producing industry.

SUBSTANCE: invention relates to drilling, completion and operation of oil and gas wells. Proposed device includes displacement type hydraulic supercharger consisting of row of sections, compression chambers communicating with supercharger, each containing suction valve to deliver gas or gas-liquid mixture from independent source into chamber. Delivery valve communicating with consumer is arranged over suction valve. Pump to deliver feed liquid through suction valve of supercharger is installed to form hydraulic seal in compression chamber. Compression chambers are made in form of separate compression module connected by pipelines with hydraulic part of supercharger. Outer diameter of compression chamber (dch.out is found from expression where dw is thickness of chamber wall; ds is diameter of supercharger; n is speed of supercharger shaft, min-1; r is supercharger half travel; where L is length of connecting rod; g is free fall acceleration. Diameter of pipeline (dpl) connecting compression chamber with hydraulic part of supercharger complies to the following equation: where α is angle between axis of pipeline and vertical. Capacity of said pipeline (Vpl) complies with relative Vplsat·n·bl-Vs where τsat is time of saturation of liquid with gas at working pressures; where Ql is flow rate of liquid; Vs is volume described by supercharger.

EFFECT: increased capacity, improved repairability.

4 cl, 1 dwg

FIELD: oil-and-gas producing industry; equipment for oil and gas wells.

SUBSTANCE: proposed unit is used for performing jobs inside pipes with the use of gas of safety composition generated by unit or associated gas from external source, as well as for reduction of bottom-hole pressure for intensification of fluid flow. Used as inert gas sources are exhaust gases from two internal combustion engines: chassis engine and compressor engine which are cleaned and mixed in gas booster pump at required ratio and are delivered to well. Safe composition of mixture is obtained by regulating amount of oxygen in exhaust by means of membrane washers fitted in exhaust branch pipes of each engine; accuracy of proportioning of each component is ensured by availability of individual hydraulic drive in each pump.

EFFECT: extended functional capabilities; enhanced ecological safety.

5 cl, 2 dwg

FIELD: oil and gas producing industry.

SUBSTANCE: invention can be used at drilling, completing and operating of oil and gas wells for compression and delivery of gas or gas-liquid mixtures. Proposed method of compression of gas or gas-liquid mixture is based on differential delivery of gas or gas-liquid mixture by means of pass-through liquid piston moved in additional compression chamber by movement of two or more three-dimensional displacers of different capacity and building different pressure in working chamber. One of displacers is arranged in part of working chamber separated from compression chamber by means of bridge. Separated part communicates with compression chamber by means of channel furnished with controllable valve. During part of suction stroke (or complete suction stroke as in some cases), part of working chamber separated by bridge is isolated from compression chamber by controllable valve. When valve is closed, suction by displacer found in isolated part of working chamber takes place from liquid line. It provides getting of portion of liquid required for compensation of irrevocable losses in liquid piston or getting of required gas-liquid proportion. During suction stroke, when controllable valve is open, suction of liquid is provided from compression chamber. All displacers provided reverse stroke of pass-through liquid piston. Simultaneously filling of additional compression chamber with gas or gas-liquid mixture takes placer. Time of "isolation" is determined by algorithm of operation of controllable valve depending of required amount of back-up liquid added into pass-through liquid piston at each cycle. At delivery stroke, forcing out of liquid from working chamber into compression chamber is provided successively by all displacer, starting from displacer of maximum capacity but minimum pressure. Each following displacer features lesser capacity as compared with previous one, but it develops higher pressure.

EFFECT: increased volumetric efficiency, possibility of control of gas-liquid ratio of delivered medium.

1 dwg

FIELD: pumping engineering.

SUBSTANCE: method comprises forming a fluid piston in the chamber of a rotor-piston multi-phase pump under the action of centrifugal forces and displacing gas with this piston. Each piston defines working and pumping chambers together with the cylinder. During sucking stroke, the working chamber is filled with gas and pumping chamber is filled with liquid. During pumping stroke, the gas is displaced from the working chamber to the pumping line, and liquid enters the working chamber through the check valve. Under the action of centrifugal force, a fluid piston is formed in front of the pump piston. The volume of liquid displaced from the pumping chamber to the working chamber is no less than the volume of the liquid loss during the pumping stroke.

EFFECT: enhanced reliability.

1 dwg

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