CN215862903U - Pumping device - Google Patents
Pumping device Download PDFInfo
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- CN215862903U CN215862903U CN202121854512.6U CN202121854512U CN215862903U CN 215862903 U CN215862903 U CN 215862903U CN 202121854512 U CN202121854512 U CN 202121854512U CN 215862903 U CN215862903 U CN 215862903U
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Abstract
The application discloses pumping equipment, pumping equipment includes first pipeline, delivery pump, detection device and controlling means, first pipeline is equipped with the feed liquor end and goes out the liquid end, the feed liquor end is equipped with the feed liquor valve, the delivery pump set up in first pipeline, and be located the feed liquor end with go out between the liquid end, detection device is used for detecting the state parameter of delivery pump, controlling means respectively with the feed liquor valve with the detection device electricity is connected. The scheme can solve the problem of overlong time required by the operation of the cold pump.
Description
Technical Field
The application belongs to the technical field of conveying devices, and particularly relates to pumping equipment.
Background
At present, with the continuous improvement of oilfield equipment, the oilfield equipment tends to be simpler to operate, comfortable in working environment, safe in production operation and intelligent in equipment operation. Liquid low-temperature media such as liquid nitrogen can be applied to oilfield exploitation, and pumping equipment can convey the liquid low-temperature media to a target position.
Since the temperature of the liquid cryogenic medium is low, in order to prevent the pumping device from being damaged due to a rapid temperature change, it is necessary to perform a cold pumping operation on the pumping device so that a pump included in the pumping device enters a cryogenic state before being operated. In the traditional technology, whether the cold pump operation can be finished or not mainly depends on whether the surface of the pump is frosted or not through artificial observation, and certain delay exists through the artificial observation, so that the time required by the cold pump operation is long, and the pumping efficiency of the liquid low-temperature medium is low.
SUMMERY OF THE UTILITY MODEL
It is an object of embodiments of the present application to provide a pumping apparatus that can solve the problem of the lengthy time required for cold pump operation.
In order to solve the technical problem, the present application is implemented as follows:
the embodiment of the application provides a pumping equipment, including first pipeline, delivery pump, detection device and controlling means, first pipeline is equipped with the feed liquor end and goes out the liquid end, the feed liquor end is equipped with the feed liquor valve, the delivery pump set up in first pipeline, and be located the feed liquor end with go out between the liquid end, detection device is used for detecting the state parameter of delivery pump, controlling means respectively with the feed liquor valve with the detection device electricity is connected.
In this application embodiment, pumping equipment's first pipeline is equipped with delivery pump and feed liquor valve, under the condition of receiving the cold pump instruction, can open the feed liquor valve automatically to make liquid medium get into the delivery pump, later can detect the state parameter of delivery pump, when this state parameter satisfies the default condition, then can open the delivery pump, thereby accomplish the cold pump operation. Therefore, after the pumping equipment disclosed by the embodiment of the application is adopted, whether the cold pump operation can be finished or not can be judged according to the detection result of the state parameter without human observation, and once the state parameter of the delivery pump meets the preset condition, the cold pump operation can be finished, so that the time required by the cold pump operation can be shortened by the pumping equipment, and the delivery efficiency of the liquid medium is improved.
Drawings
FIG. 1 is a schematic structural diagram of a pumping apparatus disclosed in an embodiment of the present application;
fig. 2 to 4 are schematic flow charts of control methods of a pumping apparatus disclosed in different embodiments of the present application, respectively.
Description of reference numerals:
110-a first pipeline, 120-a delivery pump, 130-a liquid inlet end, 140-a liquid outlet end, 150-a liquid inlet valve, 160-a booster pump, 170-a filter, 180-a pressure sensor, 190-a temperature sensor, 210-a second pipeline, 220-a recirculation valve, 230-a third pipeline, 240-an overflow valve, 250-a fourth pipeline, 260-a liquid return valve, 270-a safety valve and 280-an emptying valve.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The pumping device and the control method of the pumping device provided by the embodiment of the present application are described in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
Referring to fig. 1, the embodiment of the present application discloses a pumping apparatus, which may be used for conveying liquid low-temperature media such as liquid nitrogen, and may include a first pipeline 110, a conveying pump 120, a detection device and a control device, where the first pipeline 110 is provided with a liquid inlet end 130 and a liquid outlet end 140, the liquid inlet end 130 is provided with a liquid inlet valve 150, the conveying pump 120 is disposed on the first pipeline 110 and is located between the liquid inlet end 130 and the liquid outlet end 140, the detection device is used for detecting a state parameter of the conveying pump 120, and the control device is electrically connected with the liquid inlet valve 150 and the detection device, respectively. In case of receiving a cold pump command, the control device may open the liquid inlet valve 150 to allow the liquid medium to enter the delivery pump 120, and may open the delivery pump 120 when the state parameter of the delivery pump 120 satisfies a preset condition. Alternatively, the delivery pump 120 may be a plunger pump; the liquid inlet valve 150 may be an electric control valve, specifically, a pure electric control valve, or an electric control liquid valve or an electric control gas valve.
When the inlet valve 150 is opened, the liquid medium can flow into the first pipeline 110 from the inlet end 130 and flow out of the first pipeline 110 from the outlet end 140 via the delivery pump 120. In the process of performing the cold pumping operation, since the temperature of the liquid medium is low, when the liquid medium enters the delivery pump 120, the temperature of the delivery pump 120 will be continuously decreased, so as to implement the cold pumping operation of the delivery pump 120. When the above state parameter satisfies the preset condition, it means that the transfer pump 120 has reached the working condition, and also means that the cold pump operation can be ended, so that the transfer pump 120 can be started, so that the transfer pump 120 enters the working state.
After the pumping equipment disclosed by the embodiment of the application is adopted, whether the cold pump operation can be finished or not can be judged according to the detection result of the state parameter without artificial observation, and once the state parameter of the delivery pump 120 meets the preset condition, the cold pump operation can be finished, so that the time required by the cold pump operation can be shortened by the pumping equipment, and the delivery efficiency of the liquid medium is improved. Meanwhile, after links needing participation of operators are reduced, the operation of the cold pump is simpler, the pumping equipment is not easy to damage due to the fact that the operation is considered, and the operators are not easy to be injured by the pumping equipment.
Since the suction pressure of the transfer pump 120 affects the operation performance of the transfer pump 120, in order to increase the suction pressure of the transfer pump 120, the pumping apparatus further includes a booster pump 160 disposed in the first pipeline 110, and the booster pump 160 is located between the liquid inlet end 130 and the transfer pump 120. The booster pump 160 may boost the suction pressure of the transfer pump 120 so that the transfer pump 120 may reach normal operating conditions more quickly, thereby further reducing the time required for cold pump operation.
The state parameter of the delivery pump 120 may only include the first temperature thereof, however, if it is determined whether the cold pump operation is completed only by the first temperature of the delivery pump 120, the obtained determination result is of low precision, so the state parameter may include the suction pressure in addition to the first temperature, at this time, the detection device may include a temperature sensor 190 and a pressure sensor 180, the temperature sensor 190 may be configured to detect the first temperature of the delivery pump 120, and the pressure sensor 180 may be configured to detect the suction pressure of the delivery pump 120, so as to determine whether the first temperature and the suction pressure of the delivery pump 120 simultaneously satisfy the preset condition, and thus the setting may make the ending condition of the cold pump operation more meet the normal operation requirement of the delivery pump 120, so as to improve the cold pump effect.
Alternatively, both the temperature sensor 190 and the pressure sensor 180 may be disposed on the delivery pump 120, that is, a sensor for detecting the first temperature and the suction pressure of the delivery pump 120 may be additionally added. In other embodiments, the temperature sensor 190 and the pressure sensor 180 are both disposed on the first pipeline 110, and since the first pipeline 110 originally needs to be disposed with the temperature sensor 190 and the pressure sensor 180 to monitor the state of the first pipeline 110, and the detection values of the temperature sensor 190 and the pressure sensor 180 have a certain corresponding relationship with the first temperature and the suction pressure of the transfer pump 120, the first temperature and the suction pressure of the transfer pump 120 can be obtained by directly obtaining the detection values of the temperature sensor 190 and the pressure sensor 180, so that no additional sensor is required to be disposed, and the structure of the pumping device is simpler. In addition, the temperature value measured by the temperature sensor 190 disposed on the first pipeline 110 has a certain corresponding relationship with the second temperature of the booster pump 160, so that the second temperature of the booster pump 160 can also be obtained by the temperature sensor 190, that is, the temperature sensor 190 is used for simultaneously detecting the first temperature of the transfer pump 120 and the second temperature of the booster pump 160, and no additional sensor is required to detect the second temperature of the booster pump 160.
In order to make the value measured by the detection means reflect the state of the transfer pump 120 more accurately, the distance between the detection means and the booster pump 160 may be made larger than the distance between the detection means and the transfer pump 120, in other words, the detection means is closer to the transfer pump 120, thereby detecting the state parameter of the transfer pump 120 more accurately.
Further, in order to achieve the diversion of the liquid medium, the pumping device further comprises a second pipeline 210 and a recirculation valve 220, the second pipeline 210 is communicated with the first pipeline 110, the connection position of the second pipeline 210 and the first pipeline is located between the booster pump 160 and the delivery pump 120, and the recirculation valve 220 is arranged on the second pipeline 210. When the flow rate of the liquid medium is large, the recirculation valve 220 may be opened, so that a part of the liquid medium enters the second pipeline 210, thereby achieving the diversion of the liquid medium.
Furthermore, in order to improve the safety of the operation of the delivery pump 120, the pumping device further includes a third pipeline 230 and an overflow valve 240, the third pipeline 230 is communicated with an overflow port of the delivery pump 120, and the overflow valve 240 is disposed on the third pipeline 230.
Optionally, the pumping apparatus further comprises a fourth pipeline 250 and a liquid return valve 260, the fourth pipeline 250 is communicated with the third pipeline 230, the liquid return valve 260 is disposed on the fourth pipeline 250, and the liquid return valve 260 may be communicated with the liquid storage tank. After the liquid return valve 260 is opened, the liquid medium in the third pipeline 230 can flow back to the liquid storage tank through the fourth pipeline 250, so that the liquid medium in the third pipeline 230 can be recycled. Further optionally, the fourth pipeline 250 may be communicated with the second pipeline 210, so that the liquid medium in the second pipeline 210 may also be recycled. In addition, a safety valve 270 may be further disposed on the fourth pipeline 250, and the safety valve 270 may further improve the safety of the pumping device during operation.
The liquid mediums in the second pipe 210 and the third pipe 230 can enter the liquid storage tank through the fourth pipe 250, and of course, the liquid mediums can also be directly discharged into the air, at this time, the pumping device further includes a vent valve 280, the vent valve 280 is disposed in the third pipe 230, and the vent valve 280 is located downstream of the overflow valve 240. When the air release valve 280 is opened, the liquid medium in the third pipeline 230 can be discharged into the air, and of course, the liquid medium in the second pipeline 210 can also be discharged into the air through the third pipeline 230.
The recirculation valve 220, the overflow valve 240, the liquid return valve 260, the safety valve 270, and the blow-down valve 280 may be electrically controlled valves, specifically, may be purely electric control valves, and may also be electrically controlled liquid valves or electrically controlled gas valves.
Further, the pumping apparatus further includes a filter 170, the filter 170 is disposed on the first pipeline 110, and the filter 170 is located between the inlet end 130 and the delivery pump 120. The filter 170 may increase the cleanliness of the liquid medium in the first pipe 110, thereby extending the working life of the transfer pump 120.
Referring to fig. 1 and fig. 2 simultaneously, an embodiment of the present application discloses a control method of a pumping apparatus, which may be applied to the pumping apparatus described in any of the above embodiments, and may include:
s110, under the condition that a cold pump command is received, the liquid inlet valve 150 is opened, so that the liquid medium enters the conveying pump 120.
When the liquid inlet valve 150 is opened, the liquid medium can flow into the first pipeline 110 from the liquid inlet 130 and enter the delivery pump 120, and the temperature of the delivery pump 120 will continuously decrease when the liquid medium enters the delivery pump 120 due to the low temperature of the liquid medium, thereby achieving the cold pumping operation of the delivery pump 120.
And S120, detecting the state parameters of the delivery pump 120.
The status parameter may reflect the current status of the delivery pump 120, and optionally may include a first temperature of the delivery pump 120, which is the current temperature of the delivery pump 120.
And S130, when the state parameters meet preset conditions, starting the delivery pump 120.
When the above state parameter satisfies the preset condition, it means that the transfer pump 120 has reached the working condition, and also means that the cold pump operation can be ended, so that the transfer pump 120 can be started, so that the transfer pump 120 enters the working state.
After the control method disclosed by the embodiment of the application is adopted, whether the cold pump operation can be finished or not is based on the detection result of the state parameter, and manual observation is not needed, so that the cold pump operation can be finished once the state parameter of the delivery pump 120 meets the preset condition, and the control method can shorten the time required by the cold pump operation, thereby improving the delivery efficiency of the liquid medium. Meanwhile, after links needing participation of operators are reduced, the operation of the cold pump is simpler, the pumping equipment is not easy to be damaged by manual operation, and the operators are not easy to be injured by the pumping equipment.
As described above, it is possible to judge whether the cold pump operation is completed only by the first temperature of the transfer pump 120, but in order to improve the accuracy of the obtained judgment result, the state parameter may include the suction pressure in addition to the first temperature, and at this time, the preset condition in step S130 is: the first temperature is lower than the first preset temperature, and the suction pressure is higher than the preset pressure. That is, the cold pump operation can be terminated when the first temperature of the transfer pump 120 reaches the temperature corresponding to the normal operation state and the suction pressure of the transfer pump 120 reaches the pressure corresponding to the normal operation state. Therefore, the arrangement can make the ending condition of the cold pump operation more accord with the normal working requirement of the delivery pump 120, thereby improving the cold pump effect.
When the pumping apparatus further includes a booster pump 160 disposed in the first pipeline 110, further, as shown in fig. 3, the control method of the pumping apparatus further includes:
and S140, when the second temperature of the booster pump 160 is lower than the second preset temperature, starting the booster pump 160.
After the cold pump operation is performed for a period of time, the temperature of the booster pump 160 is less than the second preset temperature, at this time, the booster pump 160 can be operated, and under the action of the booster pump 160, the liquid medium in the first pipeline 110 can flow at a higher speed, so that the temperature of the transfer pump 120 is reduced more quickly, and the purpose of further reducing the time required for the cold pump operation is achieved.
The pumping arrangement further comprises a power source which can power the transfer pump 120 and the booster pump 160, whereby the power source is connected to the booster pump 160 and the transfer pump 120. Alternatively, the power source may be an engine, hydraulic cylinder, or the like. The power source needs to be preheated when being started, so that the rotating speed of the power source is gradually increased until the state of the power source can meet the condition of normal work. Based on this, as shown in fig. 4, the step S140 specifically includes:
when the second temperature of the booster pump 160 is less than the second preset temperature and the rotational speed of the power source is greater than the first preset rotational speed, the booster pump 160 is started.
That is, when both the second temperature of the booster pump 160 and the rotational speed of the power source satisfy a certain condition, the booster pump 160 is turned on, thereby preventing the power source from being started without being preheated in place, which results in a shortened life span of the power source.
The rotation speed of the booster pump 160 in the operating state, which refers to a state where the pumping apparatus normally delivers the liquid medium, may be defined as the first rotation speed. With continued reference to fig. 4, the step S140 of starting the booster pump 160 specifically includes: the booster pump 160 is activated such that the booster pump 160 operates at the second rotational speed. Wherein the second rotation speed is less than the first rotation speed. That is, during the cold pumping process, the rotation speed of the booster pump 160 is lower than that during the normal operation thereof, and the liquid medium is driven to flow rapidly by the low-speed operation of the booster pump 160, so that the booster pump 160 can be started earlier without affecting the service life of the booster pump 160, and the first temperature of the transfer pump 120 can reach the first preset temperature more quickly.
Referring again to fig. 4, in a further embodiment, the method of controlling the pumping apparatus further comprises:
s150, when the rotating speed of the power source is greater than the second preset rotating speed, the rotating speed of the power source is adjusted to the maximum rotating speed, and the rotating speed of the booster pump 160 is adjusted to the first rotating speed.
The second preset rotation speed is greater than the first preset rotation speed, that is, after the rotation speed of the power source reaches the first preset rotation speed, the power source is continuously increased until the rotation speed reaches the second preset rotation speed, and at this time, the preheating of the power source is completed, so that the rotation speed of the power source can be adjusted to the maximum rotation speed, and the rotation speed of the booster pump 160 is adjusted to the rotation speed during normal operation. As the rotational speed of the booster pump 160 is further increased, the transfer pump 120 can more quickly reach a normal operating condition.
Optionally, when the pumping apparatus further comprises the second pipe 210 and the recirculation valve 220, the control method of the pumping apparatus further comprises:
s160, when the cold pump command is received, the recirculation valve 220 is opened.
At this time, if the flow rate of the liquid medium is too fast, the diversion of the liquid medium may be achieved by the recirculation valve 220.
And S170, closing the recirculation valve 220 when the rotating speed of the power source is greater than a second preset rotating speed.
When the rotational speed of the power source is greater than the second preset rotational speed, the power source warm-up is completed, and at this time, the booster pump 160 is operated at the rotational speed in the normal operation, and thus the recirculation valve 220 is closed, so that the state parameters of the transfer pump 120 can more quickly reach the preset conditions, thereby shortening the time required for the cold pump operation.
In order to prevent the booster pump 160 from being frozen by the moisture in the booster pump 160 after the liquid medium is introduced into the first pipeline 110, the booster pump 160 may be controlled to perform the inching, and optionally, the control method of the pumping apparatus further includes:
and S180, when the second temperature of the booster pump 160 is lower than the third preset temperature, controlling the booster pump 160 to perform inching.
Whether the booster pump 160 needs to be controlled to inching or not is determined according to the second temperature of the booster pump 160, so that the inching operation timing can better meet the state of the booster pump 160, and the booster pump 160 can be better prevented from being frozen. Further alternatively, the third preset temperatures may be set to a plurality of different values, and when the second temperature of the booster pump 160 reaches these third preset temperatures, the booster pump 160 may be controlled to perform inching, thereby more reliably preventing the booster pump 160 from being frozen.
When the pumping device further includes the third line 230 and the overflow valve 240, the control method of the pumping device further includes:
s190, when the cold pump command is received, the relief valve 240 is opened.
Further, when the pumping apparatus further includes the fourth pipeline 250 and the liquid return valve 260, the control method of the pumping apparatus further includes:
s210, under the condition that a cold pump command is received, the liquid return valve 260 is opened.
The transfer pump 120 has a plurality of cold ends, and when the transfer pump 120 is in different states, there may be a situation where a part of the cold ends are blocked, so in order to make each cold end of the transfer pump 120 sufficiently precooled, the control method of the pumping apparatus further includes:
and S220, when the first temperature of the delivery pump 120 is lower than the fourth preset temperature, controlling the delivery pump 120 to perform inching.
Whether the transfer pump 120 needs to be controlled to perform the jog operation is determined according to the first temperature of the transfer pump 120, so that the timing of the jog operation can be more consistent with the state of the transfer pump 120, and the pre-cooling of the transfer pump 120 can be more fully performed. Further alternatively, the fourth predetermined temperature may be set to a plurality of different values, and when the first temperature of the transfer pump 120 reaches these fourth predetermined temperatures, the transfer pump 120 may be controlled to perform the inching operation, thereby more reliably ensuring that each cold end of the transfer pump 120 is sufficiently precooled.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a pumping equipment, its characterized in that includes first pipeline (110), delivery pump (120), detection device and controlling means, first pipeline (110) are equipped with feed liquor end (130) and play liquid end (140), feed liquor end (130) are equipped with feed liquor valve (150), delivery pump (120) set up in first pipeline (110), and be located feed liquor end (130) with go out between liquid end (140), detection device is used for detecting the state parameter of delivery pump (120), controlling means respectively with feed liquor valve (150) with the detection device electricity is connected.
2. A pumping apparatus according to claim 1, further comprising a booster pump (160) disposed in the first conduit (110), the booster pump (160) being located between the inlet (130) and the transfer pump (120).
3. A pumping apparatus according to claim 2, wherein the detection means comprises a temperature sensor (190) and a pressure sensor (180).
4. A pumping apparatus according to claim 3, wherein the temperature sensor (190) and the pressure sensor (180) are both provided in the first conduit (110), the temperature sensor (190) being configured to detect a first temperature of the transfer pump (120) and a second temperature of the booster pump (160).
5. A pumping apparatus according to claim 2, wherein the distance between the detection means and the booster pump (160) is greater than the distance between the detection means and the delivery pump (120).
6. A pumping arrangement according to claim 2, further comprising a second conduit (210) and a recirculation valve (220), the second conduit (210) communicating with the first conduit (110) and being connected between the booster pump (160) and the transfer pump (120), the recirculation valve (220) being arranged in the second conduit (210).
7. Pumping apparatus according to claim 1, further comprising a third conduit (230) and an overflow valve (240), the third conduit (230) being in communication with an overflow port of the delivery pump (120), the overflow valve (240) being provided in the third conduit (230).
8. The pumping apparatus according to claim 7, further comprising a fourth line (250) and a liquid return valve (260), the fourth line (250) being in communication with the third line (230), the liquid return valve (260) being provided to the fourth line (250).
9. The pumping apparatus according to claim 7, further comprising a dump valve (280), the dump valve (280) being disposed in the third conduit (230), and the dump valve (280) being located downstream of the excess flow valve (240).
10. The pumping apparatus of claim 1, further comprising a filter (170), the filter (170) being disposed in the first conduit (110), and the filter (170) being located between the intake (130) and the transfer pump (120).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121854512.6U CN215862903U (en) | 2021-08-09 | 2021-08-09 | Pumping device |
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| CN202121854512.6U CN215862903U (en) | 2021-08-09 | 2021-08-09 | Pumping device |
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| CN215862903U true CN215862903U (en) | 2022-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639202A (en) * | 2021-08-09 | 2021-11-12 | 烟台杰瑞石油装备技术有限公司 | Pumping equipment and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639202A (en) * | 2021-08-09 | 2021-11-12 | 烟台杰瑞石油装备技术有限公司 | Pumping equipment and control method thereof |
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