CN115726942A - Gas-liquid two-phase reverse driving vertical compression pump - Google Patents
Gas-liquid two-phase reverse driving vertical compression pump Download PDFInfo
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- CN115726942A CN115726942A CN202211447612.6A CN202211447612A CN115726942A CN 115726942 A CN115726942 A CN 115726942A CN 202211447612 A CN202211447612 A CN 202211447612A CN 115726942 A CN115726942 A CN 115726942A
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Abstract
The invention belongs to the new technical field of integrating two functions of a compressor and a pump, and discloses a gas-liquid two-phase reverse driving vertical compression pump, which comprises a driving motor reducer, a three-crank five-fulcrum split crankshaft, a bearing connecting sleeve, an integral connecting rod, a reverse driving crosshead, a combined plunger, a pump body, an inlet and outlet gas-liquid two-phase combined valve, a bearing cover, a bearing seat, a pump cover, a bearing gland and a sealing assembly; the driving motor reducer shaft is directly connected with the inner hole of the three-throw five-fulcrum split crankshaft to drive the three-throw five-fulcrum split crankshaft to rotate, and the rotating motion of the crankshaft is converted into the vertical reciprocating motion of the reverse driving crosshead by applying the integral connecting rod to the reverse driving crosshead. The pump body and the machine body are integrally designed, so that mold opening dies are reduced, the production is convenient, the reliability of the integral structure is high, and errors caused by assembly of the components can be avoided; because the inlet and outlet combination valve and the plunger are coaxially arranged, the pump body is clamped at one time, and the machining of the mounting holes of the combination valve and the plunger is completed.
Description
Technical Field
The invention belongs to the technical field of integrating two functions of a compressor and a pump, and particularly relates to a gas-liquid two-phase reverse driving vertical compression pump; the compression pump has double functions of gas pressurization of the reciprocating compressor and fluid pressurization of the reciprocating pump.
Background
The pump is a machine for conveying fluid or pressurizing fluid, and the pump is various in types, wherein the reciprocating pump belongs to a displacement pump and is widely applied. The reciprocating pump periodically changes through the working cavity, and simultaneously realizes the function of conveying liquid by means of the one-way valves at the inlet and the outlet of the working cavity. The device mainly comprises a piston pump, a plunger pump, a diaphragm pump, a pressure test pump, a metering pump and the like.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) Most reciprocating pumps only adapt to liquid working conditions and are not suitable for pure gas working conditions, and reciprocating compressors only adapt to gas working conditions and are not suitable for liquid working conditions, so that the conventional pumps, compressors and other general machinery are difficult to meet the gas-liquid mixed transportation requirement of the process flow, and particularly the oil-gas two-phase mixed flow working condition of an oil field.
(2) The power end reciprocating mechanism of the existing vertical reciprocating pump or compressor generally adopts a forward driving design, and a crosshead is arranged on the upper portion. Firstly, the lubrication is difficult and insufficient, and dry grinding faults are easily caused; secondly, the crosshead is long in distance from the base, the overturning moment is large, the product is unstable in operation, and the vibration noise is large.
(3) The power end of the existing reciprocating pump or compressor is connected with a speed reducer through a coupler, so that the existing reciprocating pump or compressor is poor in centering performance and difficult to adjust. Not only the faults of eccentric wear, lubricating oil leakage and the like are easy to generate; power is lost, and product efficiency is reduced; and affects product operation stability and vibration noise.
(4) The power end of the existing reciprocating pump or compressor usually adopts a traditional integral crankshaft, a crank throw can only be provided with a sliding bearing, and the sliding bearing has high requirements on the precision, the roughness and the hardness of the contact surface of the sliding bearing and the crank throw; and the transmission efficiency is lower than that of a rolling bearing, and the lubricating requirement is high.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a gas-liquid two-phase reverse driving vertical compression pump.
The invention is realized in this way, a gas-liquid two-phase reverse driving vertical compression pump includes: the device comprises a driving motor speed reducer, a three-throw five-fulcrum split crankshaft, a bearing connecting sleeve, an integral connecting rod, a reverse driving crosshead, a combined plunger, a machine pump body, an inlet and outlet gas-liquid two-phase combined valve, a bearing cover, a bearing seat, a pump cover, a bearing gland and a sealing assembly;
the driving motor reducer shaft is directly connected with an inner hole of the three-throw five-fulcrum split crankshaft to drive the three-throw five-fulcrum split crankshaft to rotate, and the rotating motion of the crankshaft is converted into the vertical reciprocating motion of the reverse driving crosshead by acting on the reverse driving crosshead through the integral connecting rod;
one end of the bearing connecting sleeve is connected with the driving motor reducer, and the other end of the bearing connecting sleeve is connected with the pump body, so that the driving motor reducer is accurately and directly connected with the pump body (a coupler is saved, the length is shortened, the connecting precision is improved, and the problems that a coupler of a traditional product is connected with the reducer, the centering performance is poor, the adjustment is difficult, eccentric wear, lubricating oil leakage, power loss, the efficiency, the operation stability, the vibration noise and the like are easily caused are solved);
the gas-liquid two-phase reverse driving vertical compression pump is characterized in that an inlet and outlet gas-liquid combination valve and a combined plunger piston are coaxially and vertically arranged, and the inlet and outlet gas-liquid combination valve is arranged above the combined plunger piston (so that the product has the functions of exhausting gas firstly and then discharging liquid);
the reverse driving crosshead drives the combined plunger to do reciprocating motion, an inlet and outlet gas-liquid two-phase combined valve is arranged on the sealing assembly by means of the external sealing assembly of the combined plunger, and a closed containing cavity is formed in the pump body. When the combined plunger moves downwards, the volume of the closed containing cavity is increased, the pressure is reduced, an inlet check valve in the gas-liquid two-phase combined valve at the inlet and the outlet is opened, and a gas or liquid medium enters the containing cavity; when the combined plunger moves upwards, the volume of the closed containing cavity is reduced, the pressure is increased, an outlet check valve in the inlet/outlet gas-liquid two-phase combined valve is opened, and gas or liquid media are discharged out of the containing cavity; the above-mentioned continuous circulation process can make gas-liquid medium be continuously sucked and discharged by means of inlet and outlet gas-liquid two-phase combined valve. Of particular importance are: gas-liquid medium enters the closed cavity, gas is arranged at the upper part of the closed cavity, liquid is arranged at the lower part of the closed cavity, and when the outlet gas-liquid one-way valve works, the outlet gas-liquid one-way valve has the characteristics of firstly discharging gas and then discharging liquid, so that the product has a unique gas-liquid mixed conveying function, the influence of clearance volume on the gas conveying performance of the product can be eliminated, the reciprocating sealing dry grinding is prevented, and the service life is prolonged.
Furthermore, the reverse driving crosshead is formed by reversely adding four rib plate hollow driving heads to the traditional crosshead.
Furthermore, hollow out construction in the middle of the reverse drive cross head, bent axle crank throw passes the cross head perpendicularly.
Furthermore, hollow out construction in the middle of the back drive cross head, connecting rod setting are in middle hollow out space, under the bent axle drive, the free movement.
Furthermore, a cross driving head of the compression pump needs to be arranged upwards, and a reverse driving cross head and a cross head slide way are arranged downwards and intrude into an oil pool.
Further, the reverse driving crosshead supporting slide way is arranged in the machine pump body below the three-throw five-fulcrum split crankshaft, and compared with the traditional crosshead supporting slide way which is arranged above the crankshaft, the distance from the reverse driving crosshead supporting slide way to the bottom surface of the pump is short (shortened by over 2/3).
Further, the gas-liquid two-phase reverse driving vertical compression pump, the inlet and outlet gas-liquid combination valve and the combination plunger are coaxially and vertically arranged.
Further, the gas-liquid two-phase reverse driving vertical compression pump has an inlet and outlet gas-liquid combination valve above the combination plunger.
Further, the gas-liquid two-phase reverse driving vertical compression pump is provided with a sealing component outside the combined plunger.
Further, the gas-liquid two-phase reverse driving vertical compression pump and the sealing assembly are arranged in the pump body.
Furthermore, the gas-liquid two-phase reverse driving vertical compression pump adopts an integral connecting rod structure (most of traditional products are split structures, the structures are complex, the manufacturability is poor, the stress of connecting bolts is large, and the pretightening force is difficult to control).
Further, according to the gas-liquid two-phase reverse driving vertical compression pump, a rolling bearing is arranged between the crank and the integral connecting rod (most of traditional products adopt sliding bearings, the requirements on the precision, the roughness and the hardness of the contact surface of the crank by the sliding bearing are high, the transmission efficiency is lower than that of the rolling bearing, and the lubrication is difficult).
Further, the pump body and the machine body of the gas-liquid two-phase reverse driving vertical compression pump are integrally arranged.
Furthermore, the inlet and outlet combination valve and the plunger are coaxially arranged, and the pump body is clamped at one time.
By combining the technical scheme and the technical problem to be solved, the technical scheme to be protected by the invention has the advantages and positive effects that:
the gas-liquid two-phase reverse driving vertical compression pump provided by the invention has the advantages that the structure is more compact, the height of the pump body is short, and the cost is saved; the gas-liquid two-phase reverse driving vertical compression pump is characterized in that the crosshead and the center of the vertical compression pump are arranged below the center of the vertical compression pump, and the vertical compression pump is not easy to overturn when in operation. The cross driving head is arranged upwards, and the reverse driving cross head and the cross head slide way are arranged downwards and invaded into an oil pool, so that the lubrication is good, and the operation is reliable; the reverse driving crosshead has short distance with the bottom surface of the pump, small overturning moment and stable operation; the gas-liquid two-phase reverse driving vertical compression pump has the advantages that the inlet and outlet combination valves and the plungers are coaxially and vertically arranged, the conveyed gas medium is easy to exhaust, and the volume efficiency is high; the pump body and the machine body of the gas-liquid two-phase reverse driving vertical compression pump are integrally designed, so that mold opening dies are reduced, the production is convenient, the reliability of the integral structure is high, and errors caused by processing and assembling of components can be avoided; according to the gas-liquid two-phase reverse driving vertical compression pump, the inlet and outlet combination valve and the plunger are coaxially arranged, the pump body can be clamped once, the machining of the mounting holes of the combination valve and the plunger can be completed, the machining is convenient, and machining errors are avoided.
The gas-liquid two-phase reverse driving vertical compression pump provided by the invention has the advantages that the structure is more compact, the height of the pump body is short, and the cost is saved; the crosshead support of the gas-liquid two-phase reverse driving vertical compression pump is arranged below the center of the pump, and the pump is not easy to overturn when in operation.
The expected income and commercial value after the technical scheme of the invention is converted are as follows: the oil field associated gas belongs to natural gas escaping from an oil well, the gas is exhausted and combusted in more than one billion ways every year in the world, and the annual associated gas produced by domestic oil fields is far more than 100 billion ways; at present, more than 70% of associated gas is exhausted and combusted or wasted, which wastes green energy and pollutes the environment. After the technical scheme of the invention is converted, advanced equipment can be provided for eliminating torches, recovering natural gas and protecting the environment; 3000-6000 m < 3 > of natural gas is recycled per product per day, 100-200 million cubic meters of natural gas is recycled per year, and the annual social benefit of each product reaches 150-300 million yuan; and the annual output value can be increased by hundreds of millions of yuan, and the interest tax is about 30-50 percent of the output value.
The technical scheme of the invention fills the technical blank in the industry at home and abroad: the product adopts a vertical structure, a reverse driving crosshead, a three-throw five-fulcrum split crankshaft, a bearing connecting sleeve, an integral connecting rod, a combined plunger, an integral machine pump body and other new technologies and new structures, simultaneously has double functions of a reciprocating pump and a compressor, and does not find like products at present.
The technical scheme of the invention solves the technical problem which is expected to be solved but is not successful all the time, and if the technology of the invention is successfully implemented, advanced equipment is provided for eliminating torches, recovering natural gas and protecting the environment.
Drawings
Fig. 1 is a schematic structural view of a gas-liquid two-phase reverse driving vertical compression pump provided in an embodiment of the present invention;
in the figure: 1. driving a motor reducer; 2. a bearing connecting sleeve; 3. a three-throw five-fulcrum split crankshaft; 4. a combination plunger; 5. an inlet and an outlet gas-liquid two-phase combination valve; 6. a machine pump body; 7. an integral connecting rod; 8. the crosshead is driven in reverse.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
This section is an illustrative example developed to explain the claims in order to enable those skilled in the art to fully understand how to implement the present invention.
As shown in fig. 1, the gas-liquid two-phase reversely driven vertical compression pump provided in the embodiment of the present invention includes a driving motor reducer 1, a bearing connecting sleeve 2, a three-throw five-fulcrum split crankshaft 3, a combined plunger 4, an inlet and outlet gas-liquid two-phase combined valve 5, a pump body 6, an integral connecting rod 7, a reversely driven crosshead 8, a bearing cover, a bearing seat, a pump cover, a bearing gland, a sealing assembly, and the like.
The crankshaft of the driving motor speed reducer 1 is directly connected with the inner hole of the three-throw five-fulcrum split crankshaft 3 to drive the three-throw five-fulcrum split crankshaft 3 to rotate, the integral connecting rod 7 acts on the reverse driving crosshead 8, and the rotary motion of the three-throw five-fulcrum split crankshaft 3 is converted into the vertical reciprocating motion of the reverse driving crosshead 8.
One end of the bearing connecting sleeve is connected with the driving motor reducer 1, and the other end of the bearing connecting sleeve is connected with the pump body 6, so that the driving motor reducer 1 is accurately and directly connected with the pump body 6 (the shaft coupling is saved, the length is shortened, the connecting precision is improved, and the problems that the shaft coupling of the traditional product is connected with the reducer, the centering performance is poor, the adjustment is difficult, eccentric wear is easy to generate, lubricating oil is leaked, the power loss is reduced, the efficiency is reduced, the operation stability is stable, the vibration noise is low and the like are solved).
The vertical compression pump is driven reversely by gas-liquid two phases, an inlet/outlet gas-liquid two-phase combination valve 5 and a combination plunger 4 are coaxially and vertically arranged, and the inlet/outlet gas-liquid two-phase combination valve 5 is arranged above the combination plunger 4 (so that the product has the functions of exhausting gas firstly and then discharging liquid).
The reverse driving crosshead 8 drives the combined plunger 4 to do reciprocating motion, and an inlet and outlet gas-liquid two-phase combined valve 5 is arranged on the sealing assembly by means of an external sealing assembly of the combined plunger 4, and a closed containing cavity is formed in the pump body 6. When the combined plunger 4 moves downwards, the volume of the closed containing cavity is increased, the pressure is reduced, an inlet check valve in the gas-liquid two-phase combined valve 5 at the inlet and the outlet is opened, and a gas or liquid medium enters the containing cavity; when the combined plunger 4 moves upwards, the volume of the closed containing cavity is reduced, the pressure is increased, an outlet check valve in the inlet/outlet gas-liquid two-phase combined valve 5 is opened, and gas or liquid medium is discharged out of the containing cavity; the above circulation is continuous, and the gas-liquid medium is continuously sucked and discharged through the inlet and outlet gas-liquid two-phase combination valve 5. Of particular importance are: the gas-liquid medium enters the closed cavity, the gas is arranged at the upper part of the closed cavity, the liquid is arranged at the lower part of the closed cavity, and the outlet gas-liquid one-way valve has the characteristics of discharging the gas firstly and discharging the liquid secondly when working, so that the product has a unique gas-liquid mixed conveying function, the influence of the clearance volume on the gas conveying performance of the product can be eliminated, the reciprocating sealing dry grinding is prevented, and the service life is prolonged.
The reverse driving crosshead 8 is formed by reversely adding four rib plate hollow driving heads to the traditional crosshead. Hollow out construction in the middle of the reverse drive cross head 8, the bent axle crank throw passes the cross head perpendicularly. Hollow out construction in the middle of the back drive cross head 8, the connecting rod setting is in middle hollow out space, under the bent axle drive, the free movement.
The cross driving head of the compression pump needs to be arranged upwards, and the reverse driving cross head 8 and the cross head slide way are arranged downwards to invade into an oil pool. The reverse drive crosshead 8 supporting slide way is arranged in the machine pump body 6 below the three-throw five-fulcrum split crankshaft 3, and compared with the traditional crosshead supporting slide way arranged above the crankshaft, the distance from the bottom surface of the pump is short (shortened by more than 2/3).
The gas-liquid two-phase reverse driving vertical compression pump has an inlet and an outlet gas-liquid two-phase combination valve 5 and a combination plunger 4 which are coaxially and vertically arranged. The gas-liquid two-phase reverse drive vertical compression pump, the inlet and outlet gas-liquid combination valve 5 is arranged above the combination plunger 4. The gas-liquid two-phase reverse drive vertical compression pump, the combined plunger 4 is externally provided with a sealing component. The gas-liquid two-phase reverse drive vertical compression pump, the seal assembly is arranged in the machine pump body 6. A gas-liquid two-phase reverse driving vertical compression pump adopts an integral connecting rod structure (most of traditional products are split structures, the structures are complex, the manufacturability is poor, the stress of a connecting bolt is large, and the pretightening force is difficult to control).
A gas-liquid two-phase reverse driving vertical compression pump is provided with a rolling bearing between a crank and an integral connecting rod 7 (most of traditional products adopt sliding bearings, the sliding bearings have high requirements on the precision, roughness and hardness of the contact surface of the crank, the transmission efficiency is lower than that of the rolling bearings, and the lubrication is difficult).
The pump body and the machine body of the gas-liquid two-phase reverse driving vertical compression pump are integrally arranged.
The inlet and outlet combination valve and the plunger are coaxially arranged, and the pump body is clamped at one time.
The driving motor of the invention drives the crankshaft to rotate, the rotating motion of the crankshaft is converted into the vertical reciprocating motion of the reverse driving crosshead under the action of the connecting rod on the reverse driving crosshead, the reverse driving crosshead drives the plunger to do reciprocating motion, and the conveying medium is continuously sucked and discharged through the inlet and outlet combination valve due to the volume change in the pump body. The reverse driving crosshead is formed by reversely adding a four-rib plate hollow driving head to a traditional crosshead; the middle hollow structure of the reverse driving crosshead can enable a crankshaft to vertically penetrate through the crosshead; the middle hollow structure of the reverse driving crosshead can arrange the connecting rod in the middle hollow space and can move freely under the drive of the crankshaft; the gas-liquid two-phase reverse driving vertical compression pump has the advantages that the cross driving head needs to be arranged upwards, and the reverse driving cross head and the cross head slide way are arranged downwards and invaded into the oil pool, so that the lubrication is good, and the operation is reliable; the reverse driving crosshead has short distance with the bottom surface of the pump, small overturning moment and stable operation; the gas-liquid two-phase reverse driving vertical compression pump has the advantages that the inlet and outlet combination valves and the plungers are coaxially and vertically arranged, so that the conveyed gas medium is easy to exhaust, and the volume efficiency is high; the pump body and the machine body of the gas-liquid two-phase reverse driving vertical compression pump are integrally designed, so that mold opening dies are reduced, the production is convenient, the reliability of the integral structure is high, and errors caused by processing and assembling of components can be avoided; according to the gas-liquid two-phase reverse driving vertical compression pump, the inlet and outlet combination valve and the plunger are coaxially arranged, and the pump body can be clamped once, so that the mounting holes of the combination valve and the plunger can be machined, the machining is convenient, and machining errors are avoided; by adopting the design, the gas-liquid two-phase reverse driving vertical compression pump has the advantages of more compact structure, short height of the pump body and cost saving; the gas-liquid two-phase reverse driving vertical compression pump crosshead is arranged below the center, and the pump is not easy to overturn when in operation.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A gas-liquid two-phase reverse driving vertical compression pump, characterized in that the gas-liquid two-phase reverse driving vertical compression pump comprises: a driving motor reducer and a three-throw five-fulcrum split crankshaft;
the driving motor reducer is directly connected with an inner hole of the three-throw five-fulcrum split crankshaft, one end of the bearing connecting sleeve is connected with the driving motor reducer, and the other end of the bearing connecting sleeve is connected with the pump body;
the inlet and outlet gas-liquid combination valve of the gas-liquid two-phase reverse driving vertical compression pump and the combined plunger are coaxially and vertically arranged, and the inlet and outlet gas-liquid combination valve is arranged above the combined plunger.
2. The gas-liquid two-phase reverse driving vertical compression pump as claimed in claim 1, wherein the reverse driving crosshead support slide is provided in the pump body below the three-throw five-fulcrum split crankshaft.
3. The gas-liquid two-phase reverse driving vertical compression pump according to claim 1, wherein the reverse driving crosshead is formed by reversely adding four rib plate hollow driving heads to the crosshead;
reversely driving a hollow structure in the middle of the crosshead, and vertically penetrating a crank shaft and a crank throw through the crosshead;
hollow out construction in the middle of the back drive cross head, the connecting rod setting is in middle hollow out space, under the bent axle drives, the free activity.
4. The gas-liquid two-phase reversely driven vertical compression pump as set forth in claim 1, wherein the cross-drive head of the gas-liquid two-phase reversely driven vertical compression pump is disposed upward, and the reversely-driven cross-head and the cross-head slide are disposed downward to intrude into the oil sump.
5. The gas-liquid two-phase reverse driving vertical compression pump according to claim 1, wherein a sealing member is provided outside the combined plunger; the sealing assembly is arranged in the machine pump body.
6. The gas-liquid two-phase reverse driving vertical compression pump as claimed in claim 1, wherein the gas-liquid two-phase reverse driving vertical compression pump adopts an integral connecting rod structure, and a rolling bearing is arranged between the crank throw and the integral connecting rod.
7. The gas-liquid two-phase reversely driven vertical compression pump according to claim 1, wherein a pump body and a body of the gas-liquid two-phase reversely driven vertical compression pump are integrally provided.
8. The gas-liquid two-phase reverse driving vertical compression pump as claimed in claim 1, wherein the inlet and outlet combination valve and the plunger are coaxially arranged, and the pump body is clamped at one time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211447612.6A CN115726942A (en) | 2022-11-18 | 2022-11-18 | Gas-liquid two-phase reverse driving vertical compression pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211447612.6A CN115726942A (en) | 2022-11-18 | 2022-11-18 | Gas-liquid two-phase reverse driving vertical compression pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115726942A true CN115726942A (en) | 2023-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211447612.6A Pending CN115726942A (en) | 2022-11-18 | 2022-11-18 | Gas-liquid two-phase reverse driving vertical compression pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115726942A (en) |
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2022
- 2022-11-18 CN CN202211447612.6A patent/CN115726942A/en active Pending
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