CN214890540U - Pipeline fluid metering pressure regulating device - Google Patents
Pipeline fluid metering pressure regulating device Download PDFInfo
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- CN214890540U CN214890540U CN202022782589.9U CN202022782589U CN214890540U CN 214890540 U CN214890540 U CN 214890540U CN 202022782589 U CN202022782589 U CN 202022782589U CN 214890540 U CN214890540 U CN 214890540U
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Abstract
The utility model discloses a pipeline fluid metering pressure regulating device, which comprises a metering pressure regulating branch and a manual cutting branch which are arranged in parallel; the metering pressure regulating branch is formed by connecting a first manual cut-off valve, a first pressure gauge, a first-level pressure regulating device, a second-level pressure regulating device, a flowmeter, a third-level pressure regulating device, a second pressure gauge and a second manual cut-off valve through pipe fittings; the pipeline at one end of the manual cut-off branch is connected with the pipeline in front of the first manual cut-off valve, and the pipeline at the other end of the manual cut-off branch is connected with the pipeline behind the second manual cut-off valve; a third manual cut-off valve is arranged in the middle of the manual cut-off branch pipeline; the pipeline fluid metering pressure regulating device also comprises a remote control device; the first pressure gauge, the first-stage pressure regulating device, the flowmeter and the third-stage pressure regulating device are respectively connected with the remote control device. The utility model discloses can be used for the fluid transport between the upper and lower reaches, be convenient for carry out pressure regulating and accurate measurement to the fluid of carrying toward the low reaches, be equipped with the equipment maintenance and the maintenance of the pressure regulating measurement branch road of being convenient for of bypass branch road.
Description
Technical Field
The invention relates to the technical field of fluid pressure regulation, in particular to a pipeline fluid metering pressure regulating device.
Background
In fluid transport pipelines such as urban gas pipe networks at different levels and LNG (liquefied natural gas) transport pipelines, the pressure of fluid transported to downstream needs to meet requirements, at present, a metering system and a pressure regulating system are often respectively arranged for detecting and controlling the pressure of a flowmeter for pipeline fluid transport, the two systems are mutually independent, information cannot be communicated in time, pressure regulation cannot be completed in time, and the system is complex in structure, large in occupied area and high in investment.
SUMMERY OF THE UTILITY MODEL
The invention aims to achieve the following purposes: the design is that the fluid delivered to the downstream can be accurately measured and recorded and the pressure can be adjusted between pipe networks with different pressures, meanwhile, the output pressure and flow data can be synchronously transmitted to a remote control device, and the remote control device can also control the output pressure of the device through a control line. In emergency, the remote control device can rapidly cut off the pipeline fluid metering pressure regulating device for conveying pipeline fluid.
In order to achieve the purpose, the invention provides the technical scheme that:
a pipeline fluid metering pressure regulating device comprises a bracket, a metering pressure regulating branch and a manual cutting branch, wherein the metering pressure regulating branch and the manual cutting branch are arranged on the bracket; the metering pressure regulating branch and the manual cutting branch are arranged in parallel; the metering pressure regulating branch is formed by connecting a first manual cut-off valve, a first pressure gauge, a primary pressure regulating device, a secondary pressure regulating device, a flowmeter, a tertiary pressure regulating device, a second pressure gauge and a second manual cut-off valve through pipe fittings; a pipeline at one end of the manual cutting branch is connected to a pipeline in front of the first manual cutting valve, and a pipeline at the other end of the manual cutting branch is connected to a pipeline behind the second manual cutting valve; a third manual cut-off valve is arranged in the middle of the manual cut-off branch pipeline; the pipeline fluid metering pressure regulating device also comprises a remote control device; the first pressure gauge, the first-stage pressure regulating device, the flowmeter, the second pressure gauge and the third-stage pressure regulating device are respectively connected with the remote control device through data signal transmission leads or a wireless network.
Further, the primary pressure regulating device comprises a first regulating valve and a first electric actuator; an output shaft of the first electric actuating mechanism is fixedly connected with a valve rod of the first regulating valve; the first electric actuating mechanism is connected with the remote control device through a data signal transmission lead or a wireless network.
Furthermore, the secondary pressure regulating device adopts a self-operated regulating valve.
Further, the three-stage pressure regulating device comprises a second regulating valve, a second electric actuator and a pressure switch, and the second electric actuator is electrically connected with the pressure switch; a valve rod of the second pressure regulating valve is fixedly connected with an output shaft of the second electric actuating mechanism; the pressure switch and the second electric actuating mechanism are connected with the remote control device through a data signal transmission lead or a wireless network.
Further, the distance between the inlet of the flowmeter and the outlet of the self-operated regulating valve is more than 10 times of the diameter of the pipeline.
Further, the distance between the outlet of the flowmeter and the second regulating valve is more than 5 times of the diameter of the pipeline.
Furthermore, the metering pressure regulating branch and the manual cutting branch are fixed on the support through a plurality of U-shaped bolts.
Furthermore, an upstream connecting flange and a downstream connecting flange are respectively connected to the front and the back of the metering pressure regulating branch and the parallel pipeline of the manual cutting branch.
The beneficial effects of the utility model are that, can be used for the fluid transport between the upper and lower reaches, be convenient for carry out pressure regulating and accurate measurement to the fluid of carrying toward the low reaches, be equipped with the bypass branch road and be convenient for the maintenance and the maintenance of the equipment of pressure regulating measurement branch road, one-level regulator uses as the regulator under normal operating condition, changes the use of quick action emergency valve under emergency, need not set up quick action emergency valve alone. The whole device can be assembled and debugged in a factory, has a simple structure, and is convenient to manufacture and construct, assemble and transport.
Drawings
Fig. 1 is a schematic structural view of the fluid metering pressure regulator of the present invention.
In the figure, 1, an upstream connecting flange 2, a first manual cut-off valve 3, a first pressure gauge 4, a first regulating valve 5, a first electric actuator 6, a self-operated regulating valve 7, a third manual cut-off valve 8, a flowmeter 9, a second regulating valve 10, a second electric actuator 11, a pressure switch 12, a second pressure gauge 13, a second manual cut-off valve 14, a U-shaped bolt 15, a downstream connecting flange 16 and a support are arranged.
Detailed Description
As shown in the figure, the pipeline fluid metering and pressure regulating device comprises a bracket 16, a metering and pressure regulating branch and a manual cut-off branch, wherein the metering and pressure regulating branch is mounted on the bracket 16; the metering pressure regulating branch and the manual cutting branch are arranged in parallel; the metering pressure regulating branch and the manual branch parallel pipeline that cuts off are connected with upper reaches flange 1 and low reaches flange 15 respectively around, and upper reaches flange 1 and upper reaches pipe network output flange are connected, and low reaches flange 15 and low reaches pipe network input flange are connected. The metering pressure regulating branch and the manual cutting branch are fixed on the bracket 16 through a plurality of U-shaped bolts.
The metering pressure regulating branch is formed by connecting a first manual cut-off valve 2, a first pressure gauge 3, a primary pressure regulating device, a secondary pressure regulating device, a flowmeter 8, a tertiary pressure regulating device, a second pressure gauge 12 and a second manual cut-off valve 13 through pipe fittings; the pipeline at one end of the manual cutting branch is connected with the pipeline in front of the first manual cutting valve 2, and the pipeline at the other end of the manual cutting branch is connected with the pipeline behind the second manual cutting valve 13; a third manual cut-off valve 7 is arranged in the middle of the manual cut-off branch pipeline; the pipeline fluid metering pressure regulating device also comprises a remote control device; the first pressure gauge 3, the first-stage pressure regulating device, the flowmeter 8, the second pressure gauge 12 and the third-stage pressure regulating device are respectively connected with the remote control device through data signal transmission leads or a wireless network.
Further, the primary pressure regulating device comprises a first regulating valve 4 and a first electric actuator 5; an output shaft of the first electric actuator 5 is fixedly connected with a valve rod of the first regulating valve 4; the first electric actuator 5 is connected with the remote control device through a data signal transmission lead or a wireless network.
Furthermore, the two-stage pressure regulating device adopts a self-operated regulating valve 6.
Further, the three-stage pressure regulating device comprises a second pressure regulating valve 9, a second electric actuator 10 and a pressure switch 11; the second electric actuator 10 is electrically connected with the pressure switch 11; the valve rod of the second pressure regulating valve 9 is fixedly connected with the output shaft of the second electric actuator 10; the pressure switch 11 and the second electric actuator 10 are connected with the remote control device through a data signal transmission lead or a wireless network.
Further, the distance between the inlet of the flowmeter 8 and the outlet of the self-operated regulating valve 6 is more than 10 times of the diameter of the pipeline; the distance between the outlet of the flow meter 8 and the second regulating valve 9 is more than 5 times the diameter of the pipeline. So as to avoid the adverse effect of instability of the fluid flow caused by the self-operated regulating valve 6 and the second regulating valve 9.
When the pipeline fluid metering pressure regulating device works normally, the first manual cut-off valve 2 and the second manual cut-off valve 13 are opened, the third manual cut-off valve 7 is closed, at the moment, the manual cut-off branch is cut off, and fluid flows through the metering pressure regulating branch. The first pressure gauge 3 displays the pressure of the fluid input at the upstream; when the pressure value in the first pressure gauge 3 is not at the preset pressure value which can pass through the first pressure regulating device, the first electric actuator 5 opens the first regulating valve 4 to a certain opening degree under the control of the remote control device to regulate the fluid for one time, so that the fluid pressure is reduced, and then the fluid enters the self-operated regulating valve 6; the self-operated regulating valve 6 is provided with pipelines which are respectively communicated with the front pipeline and the rear pipeline of the self-operated regulating valve 6, and secondary pressure regulation is carried out according to the pressure difference of the front pipeline and the rear pipeline; after the fluid after secondary pressure regulation is accurately metered and recorded by the flowmeter 8, the metering result is sent to the remote control device, the fluid enters the second regulating valve 9, the second regulating valve 9 is controlled by the second electric actuator 10, the control signal of the electric actuator 10 is from the electric signal sent by the pressure switch 11, the electric signal of the pressure switch 11 corresponds to the output pressure of the second regulating valve 9, and the output pressure can be set on the pressure switch 11, therefore, the pressure switch 11 sends out a corresponding electric signal according to the fluctuation of the output pressure and sends the corresponding electric signal to the second electric actuator 10, the second electric actuator 10 is prompted to act to change the opening degree of the second regulating valve 9, and the output pressure is ensured to be stabilized at the output pressure value set by the pressure switch 11. The second pressure gauge 12 displays the output pressure of the fluid. The fluid is regulated to the required output pressure by the second regulating valve 9 and then is delivered to a downstream pipe network through the second manual cut-off valve 13 and the downstream connecting flange.
The fluid flow data recorded by the flow meter 8 and the pressure signal of the pressure switch 11 can be transmitted to the remote control device through data transmission lines, and the control signal of the remote control device can also be transmitted to the first electric actuator 5 and the pressure switch 11. The control signal transmitted to the first electric actuator 5 controls the opening of the first regulating valve 4 to regulate the pressure of the fluid for the first time; the control signal sent to the pressure switch 11 controls the output pressure value set by the pressure switch, which can also be set directly on the pressure switch 11 at the plant commissioning site to accurately control the output pressure of the plant.
When the metering pressure regulating branch needs maintenance, the first manual cut-off valve 2 and the second manual cut-off valve 13 are closed, the metering pressure regulating branch is cut off, maintenance or repair can be carried out on various devices of the branch, if downstream equipment does not allow fluid conveying to be interrupted, the third manual cut-off valve 7 can be opened to guarantee that fluid is conveyed to a downstream pipe network in a short time and uninterruptedly before the maintenance of the metering pressure regulating branch is maintained before the first manual cut-off valve 2 and the second manual cut-off valve 13 are closed.
When the fluid delivery needs to be quickly cut off in an emergency, a control signal can be sent to the first electric actuator 5 by the remote control device, and at the moment, the first electric actuator 5 serves as an emergency cut-off valve to quickly close the first regulating valve 4, so that the fluid delivery is quickly cut off, and the production safety is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The pipeline fluid metering pressure regulating device is characterized by comprising a bracket (16), a metering pressure regulating branch and a manual cutting branch, wherein the metering pressure regulating branch and the manual cutting branch are installed on the bracket (16); the metering pressure regulating branch and the manual cutting branch are arranged in parallel; the metering pressure regulating branch is formed by connecting a first manual cut-off valve (2), a first pressure gauge (3), a primary pressure regulating device, a secondary pressure regulating device, a flowmeter, a tertiary pressure regulating device, a second pressure gauge (12) and a second manual cut-off valve (13) through pipe fittings; a pipeline at one end of the manual cutting branch is connected to a pipeline in front of the first manual cutting valve (2), and a pipeline at the other end of the manual cutting branch is connected to a pipeline behind the second manual cutting valve (13); a third manual cut-off valve (7) is arranged in the middle of the manual cut-off branch pipeline; the pipeline fluid metering pressure regulating device also comprises a remote control device; the first pressure gauge (3), the first-level pressure regulating device, the flowmeter (8), the second pressure gauge (12) and the third-level pressure regulating device are respectively connected with the remote control device through data signal transmission leads or a wireless network.
2. The metering pressure regulator of claim 1, wherein the primary pressure regulator comprises a first regulating valve (4) and a first electric actuator (5); an output shaft of the first electric actuator (5) is fixedly connected with a valve rod of the first regulating valve (4); the first electric actuator (5) is connected with the remote control device through a data signal transmission lead or a wireless network.
3. The metering pressure regulator of claim 1, wherein the three-stage pressure regulator comprises a second regulating valve (9), a second electric actuator (10) and a pressure switch (11); the second electric actuator (10) is electrically connected with the pressure switch (11); the valve rod of the second regulating valve (9) is fixedly connected with the output shaft of the second electric actuating mechanism (10); the pressure switch (11) is connected with the remote control device through a data signal transmission lead or a wireless network.
4. The device for metering and regulating pressure of pipe fluid according to claim 1, wherein the distance between the inlet of the flowmeter (8) and the outlet of the self-operated regulating valve (6) is more than 10 times of the diameter of a pipeline.
5. The device for metering and regulating pressure of pipe fluid according to claim 3, characterized in that the distance between the outlet of the flowmeter (8) and the second regulating valve (9) is more than 5 times the diameter of the pipeline.
6. The plumbing fluid metering pressure regulating device of claim 5, wherein the metering pressure regulating branch and the manual shut off branch are secured to the bracket by a plurality of U-bolts.
7. The device for metering and regulating the pressure of the pipeline fluid as claimed in claim 6, wherein an upstream connecting flange (1) and a downstream connecting flange (15) are respectively connected with the metering pressure regulating branch and the manual cutting branch in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782589.9U CN214890540U (en) | 2020-11-26 | 2020-11-26 | Pipeline fluid metering pressure regulating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782589.9U CN214890540U (en) | 2020-11-26 | 2020-11-26 | Pipeline fluid metering pressure regulating device |
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| CN214890540U true CN214890540U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022782589.9U Active CN214890540U (en) | 2020-11-26 | 2020-11-26 | Pipeline fluid metering pressure regulating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155275A1 (en) * | 2022-02-21 | 2023-08-24 | 烟台杰瑞石油装备技术有限公司 | Pressure regulating system and pressure regulating system control method |
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2020
- 2020-11-26 CN CN202022782589.9U patent/CN214890540U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155275A1 (en) * | 2022-02-21 | 2023-08-24 | 烟台杰瑞石油装备技术有限公司 | Pressure regulating system and pressure regulating system control method |
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