CN215486527U - Comprehensive test platform of multiphase mixed transportation pump or compressor - Google Patents
Comprehensive test platform of multiphase mixed transportation pump or compressor Download PDFInfo
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- CN215486527U CN215486527U CN202121406348.2U CN202121406348U CN215486527U CN 215486527 U CN215486527 U CN 215486527U CN 202121406348 U CN202121406348 U CN 202121406348U CN 215486527 U CN215486527 U CN 215486527U
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Abstract
The utility model discloses a comprehensive test platform of a multiphase pump or a compressor, which comprises: the gas phase branch comprises an air compressor and a first quick response valve which are connected in sequence; the liquid phase branch comprises a water tank and a second quick response valve which are connected in sequence; the mixed transportation pressurization branch comprises a gas-liquid mixer, a first section plug cavity and a third quick response valve which are sequentially connected, and the first quick response valve and the second quick response valve are respectively connected to the gas-liquid mixer; the bypass gas path comprises a second slug chamber connected between the first one-way valve and the first quick response valve and a fourth quick response valve connected between the third quick response valve and the second pressure-bearing glass tube; and the mixed conveying circulating system comprises a testing device, and an inlet of the testing device is connected with a third pressure transmitter. The test platform provides basic test conditions for the research of the oil-gas mixed transportation equipment, and is simple and convenient to operate, safe and reliable.
Description
Technical Field
The utility model relates to the technical field of petrochemical auxiliary tests. More particularly, the utility model relates to a comprehensive test platform of a multiphase pump or a compressor.
Background
In recent years, with the intensive research on the oil-gas mixed transportation process, equipment such as an oil-gas mixed transportation pump, a multiphase booster compressor and the like is developed. The currently common oil-gas mixed transportation equipment comprises a screw pump, a synchronous rotary pump, a plunger pump and the like. For a long time, the design and test of the oil-gas mixed transportation pump are mostly carried out under the rated working condition by using a liquid phase pump as a reference, the design and test of the multi-phase booster compressor are carried out under the rated working condition by using a pure gas compressor as a reference, however, in the actual working process on site, both the oil-gas mixed transportation pump and the multi-phase compressor are influenced by parameters such as gas content, flow, suction and discharge pressure and the like.
In addition, in the natural gas development process, the pressure in the well is gradually reduced at the later stage of the gas well development, the liquid carrying capacity of the gas is poor, a slug flow phenomenon is easily formed in the gas production process at a wellhead, and accumulated liquid in the shaft can appear in severe cases.
However, the research on the conventional domestic oil-gas mixed transportation pump test system is not mature, and a platform for the oil-gas mixed transportation pump test system capable of simulating slug flow working conditions at the same time is not seen, aiming at the basic test research platform of gas-liquid two-phase mixed transportation performance under the wide working condition with the gas content of 0-100%. Meanwhile, the existing oil-gas mixed transportation pump test platform is only suitable for conventional equipment such as screw pumps, synchronous rotary pumps and the like with independent lubrication and cooling circulation systems, and only has a primary gas-liquid separation system for recycling liquid. The multiphase booster compressor which is concerned by the applicant and is used for conveying the lubricating medium and the working medium in a mixed mode cannot be applied.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a comprehensive test platform for a multiphase pump or a compressor, which can realize a 0-100% wide-range gas-containing ratio oil-gas mixed transportation performance test and is an oil-gas mixed transportation comprehensive test platform capable of simulating slug flow working conditions.
To achieve these objects and other advantages in accordance with the purpose of the utility model, there is provided a comprehensive test platform for a multiphase pump or compressor, comprising:
the gas phase branch comprises an air compressor, a surge tank, a first regulating valve, a first pressure transmitter, a gas phase flowmeter, a first one-way valve and a first quick response valve which are connected in sequence;
the liquid phase branch comprises a water tank, a filter, a water pump, a second regulating valve, a second pressure transmitter, a liquid phase flowmeter, a second one-way valve and a second quick response valve which are connected in sequence;
the mixed transportation pressurization branch comprises a gas-liquid mixer, a first section plug cavity, a first pressure-bearing glass pipe, a first multiphase flowmeter, a third one-way valve, a third quick response valve, a second pressure-bearing glass pipe and a third pressure transmitter which are sequentially connected, wherein the first quick response valve of the gas phase branch and the second quick response valve of the liquid phase branch are respectively connected to the gas-liquid mixer;
the bypass gas path comprises a second slug chamber and a fourth quick response valve which are sequentially connected, the second slug chamber is connected between the first check valve and the first quick response valve, and the fourth quick response valve is connected between the third quick response valve and the second pressure-bearing glass tube;
mix transport circulation system, it includes by inverter motor driven test device, third pressure transmitter is connected to test device's import, second multiphase flowmeter, temperature transmitter and fourth pressure transmitter are connected gradually to test device's export.
Preferably, the mixed conveying and circulating system further comprises a gas-liquid separator and a first gate valve which are sequentially connected behind the fourth pressure transmitter, a pressure reducing device is arranged on the upper portion of the gas-liquid separator to safely release separated air, and water separated by the gas-liquid separator is connected to the water tank through the first gate valve.
Preferably, the mixed conveying and circulating system further comprises a second gate valve, an oil-water separator, a third gate valve, a fourth check valve and a fifth pressure transmitter which are sequentially connected, the second gate valve is connected between the gas-liquid separator and the first gate valve, water separated by the oil-water separator is connected to the water tank, and the fifth pressure transmitter circulates to the inlet of the test device.
Preferably, the mixed conveying circulation system further comprises a hydraulic station, an overflow valve, a fifth one-way valve and a fourth gate valve which are sequentially connected, the fourth gate valve is connected between the fifth pressure transmitter and the inlet of the testing device, a first liquid level meter is arranged on the gas-liquid separator, and a second liquid level meter is arranged on the oil-water separator.
Preferably, the first quick response valve, the second quick response valve and the third quick response valve are all electric valves or pneumatic valves.
Preferably, the test apparatus is a multiphase pump or a multiphase compressor.
The utility model at least comprises the following beneficial effects:
1. the test platform can realize oil-gas mixing under the gas content of 0-100% in a large range, can respectively complete key data test of the oil-gas mixed transportation pump or the compressor according to requirements, provides basic test conditions for research of oil-gas mixed transportation equipment, and is simple and convenient to operate, safe and reliable;
2. the test platform can simulate the slug flow working condition in the natural gas production process, the slug parameter is controllable and adjustable, and basic test conditions are provided for the capability of the oil-gas mixed transportation equipment for responding to the slug flow working condition;
3. the test platform provided by the utility model provides a two-stage separation system, and aims at a multiphase booster compressor which is used for conveying a lubricating medium and a working medium in a mixed manner, the lubricating medium can be separated and recycled through an oil-water separator, and the application range of the comprehensive test platform is expanded.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic diagram of the principle of the comprehensive test platform of the present invention.
Description of reference numerals:
1-a mixed conveying and circulating system; 101-test device; 102-a second multiphase flow meter; 103-a temperature transmitter; 104-a fourth pressure transmitter; 105-a gas-liquid separator; 106-a first liquid level meter; 107-second gate valve; 108-oil water separator; 109-a second level gauge; 110-a third gate valve; 111-fourth one-way valve 111; 112-a hydraulic station; 113-relief valve; 114-a fifth one-way valve; 115-fourth gate valve; 116-a fifth pressure transmitter; 117-first gate valve;
2, an air compressor; 3-a pressure stabilizing tank; 4-a first regulating valve; 5-a first pressure transmitter; 6-gas phase flow meter; 7-a first one-way valve; 8-a first fast response valve; 9-a second slug chamber; 10-a fourth fast response valve; 11-a water tank; 12-a filter; 13-a water pump; 14-a second regulating valve; 15-a second pressure transmitter; 16-a liquid phase flow meter; 17-a second one-way valve; 18-a second fast response valve; 19-gas-liquid mixer; 20-a first slug chamber; 21-a first pressure-bearing glass tube; 22-a first multiphase flow meter; 23-a third one-way valve; 24-a third fast response valve; 25-a second pressure-bearing glass tube; 26-third pressure transmitter.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the present invention provides a comprehensive test platform for a multiphase pump or a compressor, comprising:
the gas phase branch comprises an air compressor 2, a pressure stabilizing tank 3, a first regulating valve 4, a first pressure transmitter 5, a gas phase flowmeter 6, a first one-way valve 7 and a first quick response valve 8 which are connected in sequence;
the liquid phase branch comprises a water tank 11, a filter 12, a water pump 13, a second regulating valve 14, a second pressure transmitter 15, a liquid phase flowmeter 16, a second one-way valve 17 and a second quick response valve 18 which are connected in sequence;
the mixed transportation pressurization branch comprises a gas-liquid mixer 19, a first section plug cavity 20, a first pressure-bearing glass pipe 21, a first multiphase flowmeter 22, a third check valve 23, a third quick response valve 24, a second pressure-bearing glass pipe 25 and a third pressure transmitter 26 which are sequentially connected, wherein a first quick response valve 8 of the gas phase branch and a second quick response valve 18 of the liquid phase branch are respectively connected to the gas-liquid mixer 19;
the bypass gas path comprises a second slug chamber 9 and a fourth quick response valve 10 which are sequentially connected, the second slug chamber 9 is connected between the first check valve 7 and the first quick response valve 8, and the fourth quick response valve 10 is connected between the third quick response valve 24 and the second pressure-bearing glass tube 25;
the hybrid conveying circulation system 1 comprises a testing device 101 driven by a variable frequency motor, the third pressure transmitter 26 is connected to an inlet of the testing device 101, and an outlet of the testing device 101 is sequentially connected with a second multiphase flowmeter 102, a temperature transmitter 103 and a fourth pressure transmitter 104.
In the above technical solution, the slug chamber is a section of pipe for flowing liquid or gas. This experiment platform is through adjusting different inlet liquid parameters that admits air to adjustment test device 101 inlet pressure and import flow, the parameter of giving the experimental parameter of multiunit, finally reachs the test device 101 performance curve of reference corresponding test device 101's discharge parameter, discharge flow, pressure, temperature promptly, for the reference.
In order to facilitate the description of the working principle of the test platform, four actions are defined for the 4 quick response valves, wherein the action a is to open the first quick response valve 8 and the third quick response valve 24 and close the second quick response valve 18 and the fourth quick response valve 10; action B is that the second quick response valve 18 and the third quick response valve 24 are opened, and the first quick response valve 8 and the fourth quick response valve 10 are closed; action C is that the first, second and third fast response valves 8, 18, 24 are opened and the fourth fast response valve 10 is closed; action D is to open the second and fourth fast response valves 18, 10 and close the first and third fast response valves 8, 24;
(1) when the pure gas performance test is carried out on the test device 101, the control system executes the action A, the air compressor 2 is started, the gas is injected into the pressure stabilizing tank 3 for pressure stabilization, enters the gas-liquid mixer 19 through the first regulating valve 4, the gas-phase flowmeter 6, the first check valve 7 and the first quick response valve 8, and enters the inlet of the test device 101 through the mixed transportation pressurization branch.
(2) When a pure liquid test is carried out on the test device 101, the control system executes action B, the water pump 13 is started to pump liquid from the water tank 11, and the liquid enters the gas-liquid mixer 19 through the second regulating valve 14, the liquid phase flowmeter 16, the second one-way valve 17 and the second quick response valve 18 and then enters the inlet of the test device 101 through the mixed transportation pressurization branch.
(3) When the test device 101 is subjected to a gas-liquid mixed transportation test, the control system executes action C, the water pump 13 and the air compressor 2 are started at the same time, liquid and air enter the gas-liquid mixer 19 through the liquid path branch and the gas phase gas path respectively and are fully mixed to form a gas-liquid mixture, and the gas-liquid mixture enters the inlet of the test device 101 through the mixed transportation pressurization branch.
(4) When the test apparatus 101 is simulated for the slug flow condition during the mixed gas-liquid transportation, the operation D is executed first, the duration is t1, and the operation C is automatically executed later, and the duration is t 2. After the action D is executed, air is pressurized and conveyed to the pressure stabilizing tank 3 through the air compressor 2 to be stabilized, enters the bypass air path through the gas phase flowmeter 6 and the first one-way valve 7, then enters the inlet of the testing device 101 through the fourth quick response valve 10 and the second pressure-bearing glass tube 25, and at the moment, the second slug chamber 9 and the second pressure-bearing glass tube 25 are filled with air; meanwhile, liquid is pumped by the water pump 13 and enters the mixed transportation pressurizing branch through the liquid phase branch, and at the moment, the first section plug cavity 20 and the first pressure-bearing glass tube 21 are filled with the liquid. After the timing is reached, the action C is executed, at the moment, air can only enter the mixed transportation pressurization branch through the air path branch instead of the bypass air path, the full pipe liquid in the first section plug cavity 20 is pushed to the downstream, and the full pipe liquid state can be seen in the second pressure-bearing glass pipe 25, so that the section plug flow is formed.
The action duration time t1, t2 can be set by the control center, and the length and the pipe diameter of the first slug chamber 20 and the second slug chamber 9 can be switched, so that the length and the frequency of slugs can be adjusted. When the slug flow working condition is simulated, the scheme calculation is needed in advance: the time required by the formation of the slug is calculated through the required slug frequency, and the required flow can be calculated according to the length, the pipe diameter and the time of the slug. During the test, the flow regulation is realized by regulating the first regulating valve 4 and the second regulating valve 14.
The test device 101 can be a multiphase pump or a multiphase compressor, is driven by a variable frequency motor, and can adjust the rotating speed through a control center; the first regulating valve 4 and the second regulating valve 14 respectively regulate the gas phase branch flow and the liquid phase branch flow; through adjusting the outlet pressure of air compressor machine 2 and water pump 13 can realize mixing the pressure regulation of gas circuit, finally this application comprehensive test platform can realize carrying out the capability test under different flow, different gas-liquid ratio and the different rotational speeds to test device 101. The control center that this application refers to is the controller of conventional control motor, valve, air compressor machine 2, water pump 13 etc. and opening and close or adjust speed etc. for the prior art of common general knowledge, does not describe herein again.
The first pressure transmitter 5, the second pressure transmitter 15, the third pressure transmitter 26, the fourth pressure transmitter 104 and the fifth pressure transmitter 116 respectively acquire gas phase branch pressure at the outlet of the air compressor 2, liquid phase branch pressure at the outlet of the water suction pump 13, inlet pressure of the testing device 101, outlet pressure of the testing device 101 and oil return pressure of the lubrication loop. The temperature transmitter 103 can collect the temperature of the medium at the outlet of the test device 101.
The first quick response valve 8, the second quick response valve 18, the third quick response valve 24 and the fourth quick response valve 10 can be pneumatic valves or electric valves with signal feedback, valves with timely signal feedback are selected and can be controlled by a control center, if corresponding commands are sent to the quick response valves but corresponding feedback signals are not received, an alarm device can be arranged in the control center, and the alarm device is started to prompt an operator to quickly respond to the valve faults.
In another technical solution, the hybrid transportation cycle system 1 further includes a gas-liquid separator 105 and a first gate valve 117 sequentially connected to the fourth pressure transmitter 104, a pressure reducing device is disposed on the upper portion of the gas-liquid separator 105 to safely release the separated air, and the water separated by the gas-liquid separator 105 is connected to the water tank 11 through the first gate valve 117.
The hybrid transport cycle system 1 of the present application provides for the selection of two modes of operation. One of them is a multiphase mixed-delivery compressor which is researched by the applicant, and is characterized by that the lubricating cooling medium is fed from inlet of compressor, mixed with working medium and discharged from outlet of compressor, so that it has need of lubricating medium separation. And the second mode is that an independent lubricating circulation system is attached to a conventional multiphase mixed transmission pump or compressor on the market, and a lubricating medium does not need to be separated.
The above-mentioned technical scheme is the second kind of operational mode, opens first gate valve 117, closes second gate valve 107 and fourth gate valve 115. Since the test apparatus 101 is provided with a lubricating and cooling system having an independent circulation, after the first stage gas-liquid separation is performed, the separated liquid-phase medium is directly returned to the water tank 11 through the first gate valve 117.
In another technical solution, the hybrid transportation cycle system 1 further includes a second gate valve 107, an oil-water separator 108, a third gate valve 110, a fourth check valve 111, and a fifth pressure transmitter 116, which are connected in sequence, the second gate valve 107 is connected between the gas-liquid separator 105 and the first gate valve 117, water separated by the oil-water separator 108 is connected to the water tank 11, and the fifth pressure transmitter 116 circulates to the inlet of the test device 101.
The above technical solution is the first operation mode, the second gate valve 107 and the fourth gate valve 115 are opened, and the first gate valve 117 is closed. When the testing device 101 is used for testing, an outlet of the testing device 101 enters the gas-liquid separator 105 through the second multiphase flowmeter 102, the temperature transmitter 103 and the fourth pressure transmitter 104 to perform gas-liquid separation, separated air is safely released through the pressure reduction device, a separated oil-water mixture enters the next-stage oil-water separator 108 through the second gate valve 107, separated water returns to the water tank 11 to be recycled, and separated hydraulic oil returns to an inlet of the testing device 101 through the third gate valve 110, the fourth check valve 111 and the fifth pressure transmitter 116.
In another technical solution, the hybrid transportation cycle system 1 further includes a hydraulic station 112, an overflow valve 113, a fifth check valve 114, and a fourth gate valve 115, which are connected in sequence, the fourth gate valve 115 is connected between the fifth pressure transmitter 116 and the inlet of the test device 101, the gas-liquid separator 105 is provided with a first liquid level meter 106, and the oil-water separator 108 is provided with a second liquid level meter 109.
In the above technical solution, if the mixed delivery circulation system 1 is used for a period of time and the lubricating hydraulic oil therein is lost, the second liquid level meter 109 controls the hydraulic station 112 to start the oil pump to replenish the oil to the system by monitoring that the oil level in the oil-water separator 108 exceeds a set range. The hydraulic oil passes through the relief valve 113, the fifth check valve 114, and the fourth gate valve 115, and enters the inlet of the test apparatus 101 to perform a lubrication cycle. The relief valve 113 can regulate the pumping pressure of the hydraulic oil.
While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. A comprehensive test platform of a multiphase pump or a compressor is characterized by comprising:
the gas phase branch comprises an air compressor, a surge tank, a first regulating valve, a first pressure transmitter, a gas phase flowmeter, a first one-way valve and a first quick response valve which are connected in sequence;
the liquid phase branch comprises a water tank, a filter, a water pump, a second regulating valve, a second pressure transmitter, a liquid phase flowmeter, a second one-way valve and a second quick response valve which are connected in sequence;
the mixed transportation pressurization branch comprises a gas-liquid mixer, a first section plug cavity, a first pressure-bearing glass pipe, a first multiphase flowmeter, a third one-way valve, a third quick response valve, a second pressure-bearing glass pipe and a third pressure transmitter which are sequentially connected, wherein the first quick response valve of the gas phase branch and the second quick response valve of the liquid phase branch are respectively connected to the gas-liquid mixer;
the bypass gas path comprises a second slug chamber and a fourth quick response valve which are sequentially connected, the second slug chamber is connected between the first check valve and the first quick response valve, and the fourth quick response valve is connected between the third quick response valve and the second pressure-bearing glass tube;
mix transport circulation system, it includes by inverter motor driven test device, third pressure transmitter is connected to test device's import, second multiphase flowmeter, temperature transmitter and fourth pressure transmitter are connected gradually to test device's export.
2. The comprehensive test platform of the multiphase pump or compressor according to claim 1, wherein the mixed delivery circulation system further comprises a gas-liquid separator and a first gate valve which are sequentially connected to the fourth pressure transmitter, a pressure reducing device is arranged at the upper part of the gas-liquid separator to safely release the separated air, and the water separated by the gas-liquid separator is connected to the water tank through the first gate valve.
3. The comprehensive test platform of the multiphase pump or compressor according to claim 2, wherein the mixed delivery circulation system further comprises a second gate valve, an oil-water separator, a third gate valve, a fourth check valve and a fifth pressure transmitter which are sequentially connected, the second gate valve is connected between the gas-liquid separator and the first gate valve, water separated by the oil-water separator is connected to the water tank, and the fifth pressure transmitter circulates to the inlet of the test device.
4. The comprehensive test platform of the multiphase pump or compressor according to claim 3, wherein the mixed delivery circulation system further comprises a hydraulic station, an overflow valve, a fifth one-way valve and a fourth gate valve which are connected in sequence, the fourth gate valve is connected between the fifth pressure transmitter and the inlet of the test device, the gas-liquid separator is provided with a first liquid level meter, and the oil-water separator is provided with a second liquid level meter.
5. The comprehensive test platform of the multiphase pump or compressor according to claim 1, wherein the first quick response valve, the second quick response valve and the third quick response valve are all electrically operated valves or pneumatically operated valves.
6. The multiphase pump or compressor integrated test platform of claim 1, wherein the test device is a multiphase pump or a multiphase compressor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962282A (en) * | 2022-03-29 | 2022-08-30 | 哈尔滨工程大学 | Multifunctional centrifugal pump suction inlet pressurization test device and test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962282A (en) * | 2022-03-29 | 2022-08-30 | 哈尔滨工程大学 | Multifunctional centrifugal pump suction inlet pressurization test device and test method |
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