CN211821750U - Main body equipment conveying pipeline of long-distance water conveying and distributing pump station - Google Patents
Main body equipment conveying pipeline of long-distance water conveying and distributing pump station Download PDFInfo
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- CN211821750U CN211821750U CN201922042600.5U CN201922042600U CN211821750U CN 211821750 U CN211821750 U CN 211821750U CN 201922042600 U CN201922042600 U CN 201922042600U CN 211821750 U CN211821750 U CN 211821750U
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Abstract
The utility model discloses a long distance water delivery and transfer pump station main part equipment conveying pipeline relates to the water delivery and transfer system technical field of the big pipe diameter pipeline of long distance. The utility model comprises a conveying pipeline, a water inlet valve, a long-distance water delivery and transfer pump, an outlet valve and a hydraulic control maintenance ball valve with a hydraulic control device which are arranged on the conveying pipeline in sequence; the hydraulic control device comprises an oil tank, an oil supply device connected with the oil tank, a main pressure oil path for outputting pressure oil of the oil supply device, and an electro-hydraulic reversing valve consisting of a hydraulic control reversing valve and a switch control valve, wherein the electro-hydraulic reversing valve controls the on-off cavity of a servomotor of the hydraulic control maintenance ball valve to be opened and closed to reverse the pressure oil. The utility model discloses a conveying line adds the liquid accuse maintenance ball valve that has the liquid accuse device behind the outlet valve, makes to press conveying line and possesses duplicate protection, and the liquid accuse maintenance ball valve controllability that has the liquid accuse device simultaneously is more stable, reduces the fault rate.
Description
Technical Field
The utility model relates to a water delivery and transfer system technical field, especially a water delivery and transfer pump station main part equipment conveying pipeline are failed to long distance big pipe diameter pipeline.
Background
In recent years, with the increasing of water demand, cross-regional and cross-basin water delivery pipelines with long distance, high lift, large flow and complex terrain are adopted for more and more projects, and a pump station is mainly adopted for water transfer, so that rivers, lakes and reservoirs are communicated and flow, and an effective method for reasonably distributing water resources, treating water pollution and protecting ecological water resources is provided. The long-distance large-scale water transfer project is an important means for solving the contradiction between water resource supply and demand, and at present, the pipeline projects built at home and abroad bring good economic and social benefits.
The long-distance large-scale water conveying and distributing system has long pipelines, high pressure and large topographic relief, and requires a pump station to have high reliability, and the normal work of the whole water conveying and distributing system is often influenced by the fault of the pump station. The valve plays an irreplaceable role in a conveying pipeline of a pump station, and provides guarantee for reasonable, safe, economic and efficient conveying working conditions of long-distance large-scale water conveying and distributing pipe engineering. The valve fault is a common fault problem of a pump station, a shutdown accident caused by the valve fault frequently occurs, the valve is an important link of flow control, equipment maintenance, water pressure monitoring and unit start and stop, and the valve is required to be ensured to be in a normal working state during pipeline operation.
Therefore, it is necessary to design the pump station main body equipment conveying pipeline aiming at the problems of low stability of valve control in the pipeline and large overhauling workload of the conveying pipeline and the problem of long-time shutdown of the pump station caused by easy failure of the valve, so that the pump station main body equipment conveying pipeline can effectively solve the problem of valve control of a long-distance large-scale water conveying and transferring pipeline with complex terrain, the reliability of a water pump and accessory equipment is improved, the normal production order is ensured, the service life and the safety of the equipment are improved, and the pump station main body equipment conveying pipeline plays an important role in promoting prevention of various human-machine.
Disclosure of Invention
The utility model discloses a utility model aim at: the valve control stability to pump station main part equipment conveying pipeline is low to and the big problem of conveying pipeline maintenance work load, the utility model provides a long distance delivery water transfer pump station main part equipment conveying pipeline, this conveying pipeline add the pilot operated maintenance ball valve that has the pilot operated control device behind the outlet valve, make to press conveying pipeline and possess duplicate protection, reduce the fault rate and reduce maintenance work load, the pilot operated maintenance ball valve control performance that has the pilot operated control device simultaneously is more stable, further reduces the fault rate.
The utility model adopts the technical scheme as follows:
according to the utility model provides a long distance water delivery and transfer pump station main part equipment conveying pipeline, be applied to between technology pond and the outlet pipe, including conveying pipeline and set gradually water intaking valve, long distance water delivery and transfer pump, outlet valve and the liquid accuse maintenance ball valve on conveying pipeline, the liquid accuse maintenance ball valve includes valve body, connects servomotor and the liquid accuse device of valve body; the hydraulic control device comprises an oil tank, an oil supply device connected with the oil tank, a main pressure oil path for outputting pressure oil of the oil supply device, a hydraulic control reversing valve for controlling the reversing of the main pressure oil path and a switch control valve for controlling the reversing of the hydraulic control reversing valve to control the reversing of the oil path; wherein, the main oil port A of the hydraulic control reversing valve1And a main oil port B1The hydraulic control reversing valve is respectively connected with an open cavity and a closed cavity of the servomotor, and a main oil port P of the hydraulic control reversing valve1A main pressure oil path is connected, and a main oil port T of the hydraulic control reversing valve1The oil tank is connected through an oil return path; control of said hydraulically-controlled reversing valveThe cavity a and the control cavity b are respectively connected with a main oil port A of the switch control valve2And a main oil port B2Main oil port P of on-off control valve2Main oil port T connected to main pressure oil path and switch control valve2And connecting to an oil return circuit.
Further, the hydraulic control reversing valve main oil port A1A hydraulic control one-way valve A is arranged on the cavity opening oil path connected with the servomotor cavity, and a main oil port B of the hydraulic control reversing valve1A hydraulic control one-way valve B is arranged on a cavity closing oil way connected with the servomotor cavity.
Furthermore, the cavity opening oil way and the cavity oil way are respectively provided with a control ball valve for locking the servomotor.
Further, the hydraulic control reversing valve is a three-position four-way hydraulic control reversing valve; the switch control valve is a three-position four-way electromagnetic directional valve.
Furthermore, a reducing pressure pipeline is arranged between the long-distance water delivery and regulation pump and the outlet valve.
Further, the hydraulic control maintenance ball valve is provided with a visual display device for displaying the state of passing.
Further, still include the drainage branch road to and insert the pressure switch and the pressure transmitter of drainage branch road, drainage branch road one end inserts the pipeline between hydraulic control ball valve and the outlet pipe, pressure switch and pressure transmitter are provided with the control valve of control clearance on inserting the pipeline of drainage branch road.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the main equipment conveying pipeline of the long-distance water delivery and distribution pump station of the utility model is additionally provided with the hydraulic control maintenance ball valve behind the water outlet valve of the conveying pipeline, so that the pressurized conveying pipeline can obtain double protection; when the pump station is overhauled, the connection between the main equipment of the pump station and the conveying pipeline can be closed by closing the water outlet valve and the hydraulic control overhauling ball valve, so that the conveying pipeline at the rear end of the water outlet valve is in a static pressure state, and the frequency of the closed water hammer effect of the conveying pipeline and the valve at the section of the conveying pipeline is reduced; on the other hand, the hydraulic control maintenance ball valve is additionally arranged, so that accumulated water in a conveying pipeline is not required to be drained during maintenance, the maintenance workload is effectively reduced, the maintenance efficiency is improved, and the shutdown time of a pump station is shortened;
2. the hydraulic control maintenance ball valve additionally arranged on the main body equipment conveying pipeline of the long-distance water delivery and transfer pump station performs automatic control through the hydraulic control device, the hydraulic control device has high stability, the problem of shutdown of a pump station unit caused by valve failure is further reduced, and the high-efficiency work of the conveying pipeline is ensured;
3. the utility model discloses a hydraulic control maintenance ball valve of long distance water delivery and transfer pump station main part equipment conveying pipeline installs visual position display device, can help the staff directly perceivedly, quick understanding valve on-off state, pressure state and pipeline running state, improves conveying pipeline's security, reduces the fault rate;
4. the utility model discloses a long distance is defeated to transfer pump station main part equipment conveying pipeline has increased pressure switch and pressure transmitter on its drainage branch road, but the water pressure condition of real time monitoring conveying pipeline export to in time judge pump station operating efficiency, further improve pipeline's security.
Drawings
FIG. 1 is a schematic view of the main body equipment conveying pipeline of the long-distance water delivery and distribution pump station of the present invention;
the labels in the figure are: 1-a process water tank; 2-a water inlet valve; 3-long distance water conveying and adjusting pump; 4-a variable diameter pressure pipeline; 5-a water outlet valve; 6-hydraulic control maintenance ball valve; 7-a visual display device; 8-a pressure switch; 9-a pressure transmitter; 10-water outlet pipe; 6-1-main pressure oil circuit; 6-2-switch control valve; 6-3-hydraulic control reversing valve; 6-4-hydraulic control one-way valve A; 6-5-hydraulic control one-way valve B; 6-6-servomotor.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a main body equipment conveying pipeline of a long-distance water delivery and transfer pump 3 station disclosed in the present embodiment includes a water conveying pipeline connecting a process water tank 1 and a water outlet pipe 10, and a water inlet valve 2, a long-distance water delivery and transfer pump 3, a water outlet valve 5 and a hydraulic control maintenance ball valve 6 are sequentially disposed on the water conveying pipeline.
The hydraulic control overhaul ball valve 6 comprises a valve body, a servomotor 6-6 and a hydraulic control device for controlling the servomotor 6-6. Wherein, the servomotor 6-6 is connected with the valve rod of the valve body, and the hydraulic control device controls the servomotor 6-6 to work by controlling the inlet and outlet directions of the pressure oil of the cavity opening and closing of the servomotor 6-6. The hydraulic control device comprises an oil tank, an oil supply device, a main pressure oil path 6-1, a hydraulic control reversing valve 6-3 and a switch control valve 6-2; the oil supply device is connected with the oil tank and supplies pressure oil to the main pressure oil path 6-1, and the main oil port P of the hydraulic control reversing valve 6-31And a main port P of the on-off control valve 6-22A main oil port T connected with a main pressure oil path 6-1 and a hydraulic control reversing valve 6-31And a main oil port T of the on-off control valve 6-22Respectively connected with an oil tank, a hydraulic control reversing valve 6-3 for controlling the reversing of the pressure oil for opening and closing the cavity of the servomotor 6-6, and a main oil port A of the hydraulic control reversing valve 6-31The cavity opening pipeline is connected with the servomotor 6-6 cavity opening and the main oil port B of the hydraulic control reversing valve 6-31The closed cavity of the servomotor 6-6 is connected through a closed cavity pipeline, so that pressure oil of an open cavity oil way and a closed cavity oil way is adjusted to be reversed through reversing a valve core of the hydraulic control reversing valve 6-3; the switch control valve 6-2 is used for controlling the reversing of the control oil path of the hydraulic control solenoid valve, and the main oil port A of the switch control valve 6-22A control cavity a connected with the hydraulic control reversing valve 6-3 and a main oil port B of the switch control valve 6-22And the control cavity b of the hydraulic control reversing valve 6-3 is connected, so that the valve core of the switch control valve 6-2 is reversed to adjust the working position of the hydraulic control electromagnetic valve.
Optionally, a pilot operated check valve A6-4 can be arranged on the cavity pipeline, and a pilot operated check valve B6-5 can be arranged on the cavity closing pipeline; the hydraulic control reversing valve 6-3 is a three-position four-way hydraulic control reversing valve 6-3, and the hydraulic control reversing valve 6-3 is a normally closed reversing valve; the switch control valve 6-2 is a three-position four-way electromagnetic reversing valve, and the switch control valve 6-2 is a normally closed reversing valve.
Specifically, the hydraulic control device controls the servomotor 6-6 to perform an opening action: the electromagnet at the end of the switch control valve 6-2 a is electrified, the valve core of the switch control valve 6-2 is reversed under the action of the electromagnet, so that the control cavity a of the hydraulic control reversing valve 6-3 is communicated with the oil tank for oil return, the control cavity b is communicated with the main pressure oil way 6-1 for introducing pressure oil, the valve core of the hydraulic control reversing valve 6-3 is reversed, the open cavity of the servomotor 6-6 is communicated with the pressure oil, the closed cavity is communicated with the oil return, and the servomotor 6-6 executes the opening action; when the electromagnets at the two ends of the switch control valve 6-2 are de-energized, the valve core of the switch control valve 6-2 returns to the middle position, the control cavities a and B of the hydraulic control reversing valve 6-3 are both communicated with the oil return, the valve core of the hydraulic control reversing valve 6-3 returns to the middle position under the action of the spring, the two cavities of the relay 6-6 which are opened and closed are both communicated with the oil return, and the relay 6-6 is kept at the middle position under the action of the hydraulic control one-way valve A6-4 and the hydraulic control one-way valve B6-5. The hydraulic control device controls the servomotor 6-6 to execute closing action: the electromagnet at the end of the switch control valve 6-2 b is electrified, the valve core of the switch control valve 6-2 is reversed under the action of the electromagnet, so that the control cavity a of the hydraulic control reversing valve 6-3 is communicated with pressure oil, the control cavity b is communicated with return oil, the valve core of the hydraulic control reversing valve 6-3 is reversed, the open cavity of the servomotor 6-6 is communicated with return oil, the closed cavity is communicated with pressure oil, and the servomotor 6-6 executes closing action; when the electromagnets at the two ends of the switch control valve 6-2 are powered off, the valve core of the switch control valve 6-2 returns to the middle position, the control cavities a and b of the hydraulic control reversing valve 6-3 are both communicated with oil return, the valve core of the hydraulic control reversing valve 6-3 returns to the middle position under the action of the spring, the two cavities of the relay 6-6 which are opened and closed are both communicated with oil return, and the relay 6-6 is kept at the middle position under the action of the hydraulic control one-way valve.
Optionally, the cavity opening oil path and the cavity oil path are respectively provided with a control ball valve for locking the servomotor 6-6.
Specifically, the control ball valve is used for keeping the servomotor 6-6 in a predetermined position and in a locked state. The control ball valves are kept in an opening state in a normal state, the servomotor 6-6 enters a locking state when the two control ball valves are closed, and the control of the servomotor 6-6 can be recovered by opening the two control ball valves.
Optionally, a variable diameter pressure pipeline 4 is arranged between the long-distance water delivery and delivery pump 3 and the outlet valve.
Specifically, after the long-distance water delivery and delivery pump 3 pressurizes the delivery pipeline, the water flow is in a pressure state in the delivery pipeline, and the running state of full water in the pipeline can be improved through the reducing of the reducing pressure pipeline 4.
Optionally, the hydraulic control maintenance ball valve 6 is provided with a visual display device 7 for displaying the passing state of the hydraulic control maintenance ball valve 6.
Specifically speaking, visual display device 7 is used for the direct quick demonstration liquid accuse to overhaul the state of closing of ball valve 6 to the supplementary interior water pressure state of judging the pipeline improves the stability of valve and pipeline work, and the trouble is in time investigated and repaired in the help.
Optionally, a drainage branch is arranged on the conveying pipeline between the hydraulic control ball valve and the water outlet pipe 10, a pressure switch 8 and a pressure transmitter 9 which are connected in parallel are arranged on the drainage branch, and control valves for controlling the passage are respectively arranged on the pipelines of the drainage branch connected with the pressure switch 8 and the pressure transmitter 9.
Specifically, the pressure switch 8 can detect the pressure of the conveying pipeline at any time, and the detection work is carried out by opening the corresponding control valve; the pressure transmitter 9 can master the pressure trend condition of the pipeline in real time and carry out monitoring work by opening the corresponding control valve.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A main body equipment conveying pipeline of a long-distance water conveying and regulating pump (3) station is applied between a process water pool (1) and a water outlet pipe (10), and is characterized by comprising a conveying pipeline, and a water inlet valve (2), a long-distance water conveying and regulating pump (3), an outlet valve and a hydraulic control overhaul device which are sequentially arranged on the conveying pipelineThe hydraulic control maintenance ball valve (6) comprises a valve body, a servomotor (6-6) connected with the valve body and a hydraulic control device; the hydraulic control device comprises an oil tank, an oil supply device connected with the oil tank, a main pressure oil path (6-1) for outputting pressure oil of the oil supply device, a hydraulic control reversing valve (6-3) for controlling the reversing of the main pressure oil path (6-1) and a switch control valve (6-2) for controlling the hydraulic control reversing valve (6-3) to control the reversing of the oil path; wherein, the main oil port A of the hydraulic control reversing valve (6-3)1And a main oil port B1Respectively connected with an open cavity and a closed cavity of the servomotor (6-6), and a main oil port P of the hydraulic control reversing valve (6-3)1A main oil port T connected to a main pressure oil path (6-1) of the hydraulic control reversing valve (6-3)1The oil tank is connected through an oil return path; the control cavity a and the control cavity b of the hydraulic control reversing valve (6-3) are respectively connected with the main oil port A of the switch control valve (6-2)2And a main oil port B2Main oil port P of on-off control valve (6-2)2A main oil port T connected with the main pressure oil path (6-1) and the switch control valve (6-2)2And connecting to an oil return circuit.
2. The main equipment conveying pipeline of a long-distance water conveying and adjusting pump (3) station as claimed in claim 1, characterized in that the hydraulic control reversing valve (6-3) is provided with a main oil port A1A hydraulic control one-way valve A (6-4) is arranged on the cavity opening oil path connected with the cavity opening of the servomotor (6-6), and a main oil port B of the hydraulic control reversing valve (6-3)1A hydraulic control one-way valve B (6-5) is arranged on a cavity closing oil way connected with the cavity closing of the servomotor (6-6).
3. The long-distance water delivery and transfer pump (3) station main body equipment conveying pipeline as claimed in claim 2, wherein the open cavity oil path and the closed cavity oil path are respectively provided with a control ball valve for locking the servomotor (6-6).
4. The long-distance water transfer and transfer pump (3) station main body equipment conveying pipeline of any one of claims 1 to 3, characterized in that the hydraulic control reversing valve (6-3) is a three-position four-way hydraulic control reversing valve (6-3); the switch control valve (6-2) is a three-position four-way electromagnetic directional valve.
5. The long-distance water transfer and transfer pump (3) station main body equipment conveying pipeline according to any one of claims 1 to 3, characterized in that a reducing pressure pipeline (4) is arranged between the long-distance water transfer and transfer pump (3) and an outlet valve.
6. The long-distance water transfer and transfer pump (3) station main body equipment conveying pipeline of any one of claims 1 to 3, characterized in that the hydraulic control service ball valve (6) is provided with a visual display device (7) for displaying the on-off state.
7. The main body equipment conveying pipeline of a long-distance water transfer and transfer pump (3) station according to any one of claims 1 to 3, characterized by further comprising a diversion branch, and a pressure switch (8) and a pressure transmitter (9) which are connected into the diversion branch, wherein one end of the diversion branch is connected into the conveying pipeline between the hydraulic control ball valve and the water outlet pipe (10), and a control valve for controlling the switch is arranged on a pipeline of the pressure switch (8) and the pressure transmitter (9) which is connected into the diversion branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922042600.5U CN211821750U (en) | 2019-11-22 | 2019-11-22 | Main body equipment conveying pipeline of long-distance water conveying and distributing pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922042600.5U CN211821750U (en) | 2019-11-22 | 2019-11-22 | Main body equipment conveying pipeline of long-distance water conveying and distributing pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211821750U true CN211821750U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922042600.5U Active CN211821750U (en) | 2019-11-22 | 2019-11-22 | Main body equipment conveying pipeline of long-distance water conveying and distributing pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211821750U (en) |
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2019
- 2019-11-22 CN CN201922042600.5U patent/CN211821750U/en active Active
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