CN217632908U - Vane pump for conveying high-temperature and high-pressure fluid - Google Patents
Vane pump for conveying high-temperature and high-pressure fluid Download PDFInfo
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- CN217632908U CN217632908U CN202123364689.0U CN202123364689U CN217632908U CN 217632908 U CN217632908 U CN 217632908U CN 202123364689 U CN202123364689 U CN 202123364689U CN 217632908 U CN217632908 U CN 217632908U
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- 239000012530 fluid Substances 0.000 title claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 238000004088 simulation Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000004804 winding Methods 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of the impeller pump technique of carrying high temperature high pressure fluid among the simulation drilling process among the oil drilling and specifically relates to a carry high temperature high pressure fluid's impeller pump, including power pack, drive unit and mobile unit. The power unit comprises a motor, a cylinder, a wire leading device, an oil inlet and an oil outlet, the unit is in a normal temperature environment, and insulating oil is filled between the motor and the cylinder; the insulating oil can play a role in balancing pressure and reducing the temperature of the motor; the transmission unit comprises a transmission shaft and an oil discharge port, and adopts a small-section design, so that the heat transfer rate is reduced, and the high temperature of the flow unit is not easy to be transferred to the power unit to influence the working state of the motor; the flow unit comprises a rotor, blades and a metal graphite winding pad, the unit is located in a high-temperature and high-pressure working area, the rotor is made of a rotor alloy material and can resist high temperature and corrosion, and the rotor is a positive displacement rotor and adopts an eccentric structure. The device is reliable in principle and can be used for simulating the flowing state of high-temperature and high-pressure fluid in deep wells and ultra-deep wells.
Description
Technical Field
The utility model belongs to the technical field of the impeller pump technique of carrying high temperature high pressure fluid among the simulation drilling process among the oil drilling and specifically relates to a carry high temperature high pressure fluid's impeller pump.
Background
In the process of drilling deep wells and ultra-deep wells, the drilling fluid is influenced by high temperature and high pressure at the well bottom, and the flowing property is greatly influenced by the high temperature and the high pressure.
When the drilling fluid is used underground, the volume of the drilling fluid is small, the flow rate is low, and along with the process that the drilling fluid returns to the ground from the bottom of a well, the temperature and the pressure of the drilling fluid become low along with the depth of the well, the volume of the drilling fluid becomes large, and the flow rate becomes high.
The patent "a large-flow high-lift circulating pump hydraulic model determining method and device" (CN 107239641A) mainly aims at determining and developing a large-flow high-lift circulating pump hydraulic model, and does not consider whether a circulating pump can pass high-temperature high-pressure fluid or not.
The patent "a reactor gas-liquid mixture circulating pump" (CN 206386284U) mainly aims at providing a reactor gas-liquid mixture circulating device, and does not consider the application condition of fluid in a high-temperature and high-pressure state.
The vane pump is a pump in which vanes in a rotor groove are in contact with a pump casing (stator ring) to press sucked liquid from an oil inlet side to an oil discharge side.
Vane pumps can be classified into vane-type variable pumps and vane-type fixed displacement pumps according to whether the theoretical displacement per revolution thereof is a fixed value or a variable value.
When the vane pump rotor rotates, the tip of the vane clings to the inner surface of the stator under the action of centrifugal force and pressure oil. The working volume formed by the two blades, the rotor and the inner surface of the stator firstly absorbs oil from small to large and then discharges oil from large to small, and when the blades rotate for one circle, one-time oil absorption and oil discharge are completed.
Referring to fig. 2, the single-acting vane pump is composed of a rotor 13, a stator 16, vanes 12, an oil distribution pan, and an end cover. The inner surface of the stator is a cylindrical bore. There is eccentricity between the rotor and the stator. The blades can flexibly slide in the grooves of the rotor, and the tops of the blades are tightly attached to the inner surface of the stator under the action of centrifugal force generated when the rotor rotates and pressure oil introduced into the roots of the blades, so that a sealed working cavity is formed between each two adjacent blades, the oil distribution disc, the stator and the rotor. When the rotor rotates anticlockwise, the vanes on the right side of the drawing extend outwards, the volume of the sealed working cavity is gradually increased, vacuum is generated, and then oil is sucked in through the oil suction opening and the window on the oil distribution disc. But on the left side of the figure. The vanes retract inwards, the volume of the sealing cavity is gradually reduced, and oil in the sealing cavity is pressed out through another window of the oil distribution disc and the oil pressing port and is output to the system. The pump absorbs and presses oil once in the process of one rotation of the rotor, so the pump is called a single-action pump. The rotor is subject to radial hydraulic unbalance acting force, so the pump is also called as an unbalanced pump, and the bearing load of the pump is larger. The displacement of the pump can be changed by changing the eccentricity between the stator and the rotor, so that the pump is a variable displacement pump.
Generally speaking, the current indoor pump does not fully consider how to circulate the drilling fluid in the high-temperature and high-pressure flowing state in the deep well and the ultra-deep well and simulate the fluid flow in the drilling process of the deep well and the ultra-deep well.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a carry impeller pump of high temperature high pressure fluid, the utility model provides an overcome the not enough of prior art, can be at the mobile state of ground simulation deep well and ultra-deep well drilling in-process drilling fluid under the high temperature high pressure condition, can carry high temperature high pressure fluid, make the fluid flow at the pipeline inner loop, the device principle is reliable moreover, and is easy and simple to handle.
In order to solve the technical problem, the utility model discloses a realize through adopting following technical scheme mode:
a vane pump for conveying high-temperature and high-pressure fluid is used for high-temperature and high-pressure fluid conveying simulation and comprises a vane pump driven by a motor, wherein the motor is a speed regulating motor, a sealing cylinder is sleeved outside the motor, and insulating oil is filled in an annular space between the motor and the sealing cylinder; the sealing barrel is provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet are connected with an inlet and an outlet of the cooling pump; the motor is in transmission connection with the vane pump through a transmission shaft.
Furthermore, the sealed barrel comprises an upper plug, a barrel and a lower plug, and the upper plug and the lower plug are respectively in threaded sealing connection with the upper end of the barrel and the lower end of the barrel.
Furthermore, a line channel for accommodating a lead to pass through and a shaft hole for accommodating a transmission shaft to pass through are formed in the lower plug, and the shaft hole is in running fit with the transmission shaft; one section of the lead is electrically connected with the motor, and the other end of the lead is electrically connected with a lead device arranged outside the lower plug.
Furthermore, the vane pump comprises a pump body, a stator shell and a rotor, wherein the upper end of the pump body is connected with the lower plug in a sealing mode, the stator shell is installed in the pump body, the rotor is installed in the stator shell, and the upper end of the rotor penetrates through the upper end of the pump body and is connected with the transmission shaft.
Furthermore, a liquid inlet and a liquid outlet are formed in two sides of the pump body.
Further, an inlet and an outlet flange are arranged at the liquid inlet and the liquid outlet, and a sealing gasket is arranged on the outer end face of the connecting flange.
Further, the sealing gasket is a metal graphite winding gasket.
Further, a lower sealing cover is arranged at the lower end of the pump body and is in sealing connection with the lower end of the pump body.
Further, the rotor is an eccentric rotor.
Furthermore, an application method of the vane pump for conveying high-temperature high-pressure fluid utilizes the vane pump for conveying high-temperature high-pressure fluid to carry out circulation simulation on the high-temperature high-pressure fluid, and sequentially comprises the following steps:
(1) Communicating the connecting flange with a high-temperature high-pressure fluid pipeline;
(2) The cooling pump is started to pump insulating oil into an annular space between the cylinder and the motor through the oil inlet, and after the temperature of the motor rises, high-temperature oil inside the motor is replaced by low-temperature oil from the oil outlet so as to reduce heat generated by heating of the motor and enable the motor to be always in a low-temperature working environment;
(3) The lead wire device is connected to electrify the motor, the motor rotates to drive the rotor to rotate through the transmission shaft, the rotor rotates to enable high-temperature and high-pressure fluid to be sucked and discharged continuously, the fluid flows, and the rotating speed of the rotor is driven to change by changing the rotating speed of the motor so as to change the flow rate of the fluid;
(4) After the experiment, break off the lead wire ware, close the cooling pump, discharge through the insulating oil in oil drain port with annular space and the transmission shaft.
(5) And (3) finishing the experimental results: and (5) sorting and analyzing the collected data.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) In the process of using the high-temperature high-pressure slurry circulating pump, the factors that the power unit and the flow unit are required to be in different temperature environments and the motor stops due to overhigh heat are considered;
(2) Meanwhile, the factors that the three units are required to be in the same pressure system, the material of the rotor, whether the sealing gasket can bear high temperature and high pressure and the like are considered;
(3) The influence of slurry circulation on the motor in a high-temperature and high-pressure state is considered more perfectly;
(4) Provides experimental and theoretical guidance for the design of the high-temperature and high-pressure slurry circulating pump.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment.
Fig. 2 isbase:Sub>A schematic cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1 and 3.
FIG. 3 is a schematic structural diagram of the second embodiment.
In the figure: 1. go up end cap, 2, oil inlet, 3, motor, 4, barrel, 5, lower end cap, 6, oil-out, 7, lead wire ware, 8, transmission shaft, 9, oil drain port, 10, axle sleeve, 11, go up the position sleeve, 12, blade, 13, rotor, 14, lower position sleeve, 15, metal graphite twines the pad, 16, stator housing, 17, first connecting flange, 18, second connecting flange, 19, feed liquor flange, 20, flowing back flange, 21, cooling pump, 22, the pump body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The first embodiment is as follows:
referring to the attached fig. 1 and 3 of the specification, the vane pump for conveying high-temperature and high-pressure fluid of the present invention mainly comprises a power unit, a transmission unit and a flow unit.
The power unit comprises an upper plug 1, a motor 3, a cylinder 4, a wire leading device 7 and a lower plug 5.
An annular space formed among the upper plug 1, the lower plug 5, the cylinder 4 and the motor 3 is filled with insulating oil.
The upper plug 1 is in threaded connection with the barrel 4 and the lower plug 5 in sequence.
The lower end of the motor 3 is connected with the upper end of the lower plug 5 through a bolt.
Line channel and shaft hole have been seted up in lower end cap 5, and 5 lower extremes of lower end cap are equipped with one section extension, and extension lower extreme passes through first flange and pump body sealing connection.
The transmission unit comprises a transmission shaft 8 and an oil drainage port 9.
The rotational power of the motor 3 is transmitted to the rotor 13 through the transmission shaft 8.
The flow unit comprises a stator shell, an upper locating sleeve 11, a rotor 13, blades 12, a lower locating sleeve 14, a shaft sleeve 10 and a metal graphite winding pad 15.
The rotor 13 is made of alloy and is installed between the upper positioning sleeve 11 and the lower positioning sleeve 14.
The vanes 12 are fixed to the outer periphery of the rotor 13 and are made of a high temperature resistant elastic material, such as rubber, metal, etc.
A shaft sleeve 10 is arranged between the transmission shaft 8 and the inner wall of the upper end of the stator shell.
There is blade 12 on eccentric structure's the rotor 13, two adjacent blades 12, go up position sleeve 11, the sealed working chamber of one by one has just been formed between position sleeve 14 and the stator casing down, when rotor 13 is rotatory, inside bulky partial volume diminishes gradually between rotor 13's the blade 12, pressure increases, little bulky partial volume grow gradually between blade 12, pressure diminishes, make the fluid constantly inhale and flow out, the rotational speed that drives rotor 13 through the rotational speed that changes motor 3 changes the speed that makes the fluid and change, secondly metal graphite wound pad 15 can bear high temperature high pressure, play sealed effect at this work area.
The second embodiment:
referring to the attached figures 2 and 3 of the specification, the vane pump for conveying high-temperature and high-pressure fluid of the invention mainly comprises a power unit, a transmission unit and a flow unit.
The power unit comprises an upper plug 1, a motor 3, a barrel 4, a wire leading device 7, a lower plug 5, an oil inlet 2 and an oil outlet 6.
An annular space formed among the upper plug 1, the lower plug 5, the barrel 4 and the motor 3 is filled with insulating oil, and the insulating oil is driven to circulate by an external cooling pump, enters from the oil inlet 2 and is discharged from the oil outlet 6.
The upper plug 1 is in threaded connection with the cylinder 4 and the lower plug 5 in sequence.
The lower end of the motor 3 is connected with the upper end of the lower plug 5 through a bolt.
A line channel and a shaft hole are formed in the lower plug 5, a section of extension section is arranged at the lower end of the lower plug 5, and the lower end of the extension section is connected with the stator shell in a sealing mode through a first connecting flange.
The transmission unit comprises a transmission shaft 8 and an oil drainage port 9.
The rotational power of the motor 3 is transmitted to the rotor 13 through the transmission shaft 8.
The flow unit comprises a stator shell, an upper positioning sleeve 11, a rotor 13, blades 12, a lower positioning sleeve 14, a shaft sleeve 10 and a metal graphite winding pad 15.
The rotor 13 is made of alloy and is installed between the upper positioning sleeve 11 and the lower positioning sleeve 14.
A shaft sleeve 10 is arranged between the transmission shaft 8 and the inner wall of the upper end of the stator shell.
There is blade 12 on eccentric structure's the rotor 13, two adjacent blades 12, go up position sleeve 11, the work chamber sealed one by one has just been formed between position sleeve 14 and the blade pump casing down, when rotor 13 is rotatory, inside bulky part volume diminishes gradually between rotor 13's the blade 12, pressure increase, little bulky part volume grow gradually between blade 12, pressure diminishes, make the fluid constantly inhale and flow, the rotational speed that drives rotor 13 through the rotational speed that changes motor 3 changes the speed that makes the fluid and change, secondly metal graphite wound pad 15 can bear high temperature high pressure, play sealed effect at this work area.
The second embodiment:
the method for circulating the high-temperature high-pressure fluid by using the device sequentially comprises the following steps of:
a. preparation in the early stage of the experiment:
connecting flange structures and related devices of a fluid inlet and a fluid outlet, and checking whether the insulating oil is sufficient; and checking whether the cooling pump works normally or not, and arranging an electric fan outside the power unit to radiate the cylinder.
b. Starting the experimental equipment:
the cooling pump is started to pump insulating oil into the annular space between the cylinder body 4 and the motor 3 through the oil inlet 2, the lead device 7 is switched on to electrify the motor 3, and the motor 3 rotates to drive the positive displacement rotor 13 to rotate through the transmission shaft 8.
The rotation of the rotor 13 with an eccentric structure can enable high-temperature and high-pressure fluid to be sucked and discharged continuously, so that the fluid flows, and the rotating speed of the rotor 13 is changed by changing the rotating speed of the motor 3 so as to change the flow rate of the fluid. In the working process of the motor 3, after the temperature of the motor 3 rises, the high-temperature oil inside is replaced by the low-temperature oil from the oil outlet 6, so that the heat generated by the motor is reduced, and the motor 3 is always in a low-temperature working environment.
After the experiment is finished, the wire leading device 7 is disconnected, the cooling pump is closed, insulating oil in the annular space and the transmission shaft 8 is discharged through the oil drainage port 9, and the rotor 13 and the fluid flow channel are cleaned after the flowing unit is cooled.
c. And (3) finishing the experimental results:
and (5) sorting and analyzing the collected data.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A vane pump for conveying high-temperature and high-pressure fluid is used for conveying simulation of the high-temperature and high-pressure fluid and comprises a vane pump driven by a motor and is characterized in that the motor is a speed-regulating motor, a sealing cylinder is sleeved outside the motor, and insulating oil is filled in an annular space between the motor and the sealing cylinder; the sealing barrel is provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet are connected with an inlet and an outlet of the cooling pump; the motor is in transmission connection with the vane pump through a transmission shaft.
2. The vane pump for conveying high-temperature and high-pressure fluid as claimed in claim 1, wherein the sealing cylinder comprises an upper plug, a cylinder body and a lower plug, and the upper plug and the lower plug are respectively in threaded sealing connection with the upper end of the cylinder body and the lower end of the cylinder body.
3. The vane pump for conveying high-temperature and high-pressure fluid as claimed in claim 2, wherein the lower plug is provided with a circuit channel for receiving a lead wire to pass through and a shaft hole for receiving a transmission shaft to pass through, and the shaft hole is rotatably matched with the transmission shaft; one section of the lead is electrically connected with the motor, and the other end of the lead is electrically connected with a lead device arranged outside the lower plug.
4. The vane pump as claimed in claim 3, wherein the vane pump comprises a pump body, a stator housing, and a rotor, the upper end of the pump body is connected with the lower plug in a sealing manner, the stator housing is installed in the pump body, the rotor is installed in the stator housing, and the upper end of the rotor passes through the upper end of the pump body and is connected with the transmission shaft.
5. The vane pump for conveying high temperature and high pressure fluid as claimed in claim 4, wherein the pump body has a liquid inlet and a liquid outlet on two sides.
6. The vane pump for conveying high-temperature and high-pressure fluid as claimed in claim 5, wherein the liquid inlet and the liquid outlet are provided with inlet and outlet flanges, and sealing gaskets are arranged on the outer end surfaces of the inlet and outlet flanges.
7. The vane pump for conveying high-temperature high-pressure fluid as claimed in claim 6, wherein the sealing pad is a metal graphite wound pad.
8. The vane pump for conveying high-temperature and high-pressure fluid as claimed in any one of claims 4 to 6, wherein the lower end of the pump body is provided with a lower sealing cover, and the lower sealing cover is hermetically connected with the lower end of the pump body.
9. A vane pump for conveying high pressure and high temperature fluids as claimed in any one of claims 4 to 6 wherein the rotor is an eccentric rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364689.0U CN217632908U (en) | 2021-12-30 | 2021-12-30 | Vane pump for conveying high-temperature and high-pressure fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364689.0U CN217632908U (en) | 2021-12-30 | 2021-12-30 | Vane pump for conveying high-temperature and high-pressure fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217632908U true CN217632908U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123364689.0U Active CN217632908U (en) | 2021-12-30 | 2021-12-30 | Vane pump for conveying high-temperature and high-pressure fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217632908U (en) |
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2021
- 2021-12-30 CN CN202123364689.0U patent/CN217632908U/en active Active
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Effective date of registration: 20240202 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Country or region after: China Patentee after: Sinopec Petroleum Engineering Technology Service Co.,Ltd. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute Address before: 257017 no.827, Beiyi Road, Dongying District, Dongying City, Shandong Province Patentee before: SINOPEC OILFIELD SERVICE Corp. Country or region before: China Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |