CN113075941A - Water addition system and water addition control method - Google Patents
Water addition system and water addition control method Download PDFInfo
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- CN113075941A CN113075941A CN202110337041.XA CN202110337041A CN113075941A CN 113075941 A CN113075941 A CN 113075941A CN 202110337041 A CN202110337041 A CN 202110337041A CN 113075941 A CN113075941 A CN 113075941A
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- metering pump
- monitoring device
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
Abstract
The embodiment of the application provides a water adding system and a water adding control method, wherein the system comprises: the system comprises a throttling valve, a flow meter, a metering pump, a back pressure valve and monitoring equipment, wherein the flow meter and the metering pump are connected with the monitoring equipment; the throttle valve is arranged at a water inlet of the water feeding pipeline; a flow meter is arranged between the throttle valve and the water outlet of the water feeding pipeline, and a metering pump is arranged between the flow meter and the water outlet of the water feeding pipeline; a back pressure valve is arranged between the metering pump and the water outlet of the water feeding pipeline; the throttle valve and the back pressure valve are used for responding to manual regulation and control operation of a user and regulating the water quantity according to the manual regulation and control operation; and the monitoring equipment is used for controlling the metering pump to regulate the water quantity according to the water flow detected by the flowmeter in an automatic control mode.
Description
Technical Field
The application relates to the technical field of flow control systems, in particular to a water adding system and a water adding control method.
Background
A Flow control system (Flow control system) is a feedback control system that uses a Flow rate as a controlled amount. Flow rate is the amount of fluid passing through a pipe per unit time. The flow control system is an important industrial control system and is widely applied to various industrial departments.
The existing flow control system is usually controlled at the front section of a pipeline conveying line, and usually, the flow control is carried out on a valve at a pipeline inlet in a manual regulation or automatic regulation mode, but the final pipeline water adding effect is difficult to adapt to the requirements of users.
Disclosure of Invention
The application aims to provide a water adding system and a water adding control method.
In a first aspect, the present application provides a watering system comprising: the system comprises a throttling valve, a flow meter, a metering pump, a back pressure valve and monitoring equipment, wherein the flow meter and the metering pump are connected with the monitoring equipment;
the throttle valve is arranged at a water inlet of the water feeding pipeline;
a flow meter is arranged between the throttle valve and the water outlet of the water feeding pipeline, and a metering pump is arranged between the flow meter and the water outlet of the water feeding pipeline;
a back pressure valve is arranged between the metering pump and the water outlet of the water feeding pipeline;
the throttle valve and the back pressure valve are used for responding to manual regulation and control operation of a user and regulating the water quantity according to the manual regulation and control operation;
and the monitoring equipment is used for controlling the metering pump to regulate the water quantity according to the water flow detected by the flowmeter in an automatic control mode.
In the system, a throttling valve is arranged at the water inlet of the water feeding pipeline, a back pressure valve is arranged at a position close to the water outlet, and a flowmeter and a metering pump are arranged between the throttling valve and the back pressure valve. Based on foretell system, not only can adjust the water yield of water inlet department through the choke valve, can also carry out the water yield to the pipeline region at measuring pump place based on the monitoring result of flowmeter and adjust to can also carry out flow control to the region of being close to the delivery port of watering pipeline through the back pressure valve, under the longer condition of watering pipeline, be favorable to satisfying the different demands of adding water with faster treatment effeciency.
In an alternative embodiment, the watering system further comprises a sensor assembly disposed between the back pressure valve and the water outlet of the watering line;
the sensor assembly is connected with the monitoring equipment;
the sensor assembly includes at least one of a water quality monitoring device and a water pressure monitoring device.
Through the implementation mode, the water adding system can not only provide the function of automatically controlling the flow, but also monitor the water quality or the water pressure in the water adding control process.
In an optional embodiment, the watering system further comprises an alarm device and a display unit, and both the alarm device and the display unit are connected with the monitoring equipment;
the monitoring equipment is used for controlling the alarm device to give an alarm according to the detection result detected by the sensor assembly;
the display unit is used for displaying the detection result detected by the sensor assembly and the water flow detected by the flowmeter.
Through the implementation mode, the alarm prompt is facilitated to be timely carried out in the water adding process, the serious influence on the material to be added with water due to the fact that the unqualified water quality or the unqualified water pressure condition cannot be timely found can be avoided, and the user can be favorably informed of the water adding condition of the pipeline.
In an alternative embodiment, the sensor assembly comprises the water quality monitoring device and the water pressure monitoring device;
the water quality monitoring device comprises: a residual chlorine sensor, a PH value detection sensor and a turbidity detection sensor;
the water pressure monitoring device comprises a water pressure sensor;
the residual chlorine sensor, the PH value detection sensor, the turbidity detection sensor and the water pressure sensor are connected in parallel.
Through above-mentioned implementation, the system of adding water can carry out the monitoring of multidimension degree to the water in the pipeline through the in-process that adds water pipe.
In an alternative embodiment, the throttle valve comprises: the device comprises a base, a main shell fixed on the base and an upper shell fixed on the main shell;
the main shell is provided with a water inlet hole and a water outlet hole;
a screw sleeve is embedded in the upper shell, a rotary screw is installed in the screw sleeve, a rotary seat is fixedly arranged at the position of the rotary screw, which extends out of the upper shell along the screw sleeve, a valve rod is arranged below the rotary screw, and a valve core is arranged at the bottom of the valve rod;
the rotary seat is used for driving the rotary screw in the screw sleeve to rotate, the rotary screw is used for driving the valve rod to rotate, and the valve rod is used for driving the valve core to rotate to ascend or descend when rotating so as to enable the water inlet hole and the water outlet hole to be communicated or separated.
Based on above-mentioned implementation, this rotatory screw rod is rotated in the inside of screw rod cover through the roating seat, and the valve rod that can drive the below is rotatory to can drive the case and rotate the lift, the apopore of this choke valve of being convenient for and the circulation of inlet opening use, the water flow that can swiftly, adjust this choke valve in a flexible way, convenient to use through the normal running fit between roating seat, rotatory screw rod, valve rod, the case.
In an optional embodiment, the valve core is provided with a fixing plate and a through hole;
a movable rod is arranged on the fixed plate in an extending mode and is located inside the rotary screw rod and the valve rod;
a plurality of movable plates and at least one positioning plate are arranged on one side of the movable rod, which is far away from the rotating seat;
the movable rod is used for driving part or all of the movable plates to move so as to change the opening of the through opening.
Through above-mentioned implementation, can carry out more subtle regulation to the opening aperture on the case under the drive effect of movable rod to the regulation and control mode of movable rod is simple, just can drive the fly leaf through the inside rotation movable rod at rotatory screw rod and valve rod and remove, makes each fly leaf expand or be closed, thereby adjusts the opening aperture, and the area that dams of case can be adjusted to the size through the control opening aperture. When the valve rod and the valve core are matched for rotary lifting, the valve rod and the valve core can have a large adjusting range, and the using mode is more flexible.
In an alternative embodiment, the plurality of movable plates includes a first movable plate, a second movable plate, and a third movable plate, and the at least one positioning plate includes a fourth positioning plate;
the first movable plate is fixedly connected with the movable rod;
the first movable plate and the second movable plate are movably connected through a sliding block;
the second movable plate is movably connected with the third movable plate through a sliding block;
the third movable plate is movably connected with the fourth positioning plate through a sliding block.
Through above-mentioned implementation, just can drive first fly leaf and remove through rotating the movable rod in the inside of rotatory screw rod and valve rod, and first fly leaf can drive the second fly leaf and remove, and the second fly leaf can drive the third fly leaf and use the fourth locating plate moves as the reference position, can control first fly leaf, second fly leaf, third fly leaf and expand or close on the case through the movable rod based on this implementation, is convenient for adjust the damming area.
In an alternative embodiment, the valve rod is sleeved with a corrugated pipe;
a first sealing ring is arranged at the connecting position between the main shell and the valve rod;
an annular seat is fixedly arranged in the main shell, and the annular seat is arranged on the outer side of the valve rod in a surrounding manner;
and a second sealing ring sleeved on the valve rod is arranged below the annular seat.
Through above-mentioned implementation, can promote the leakproofness.
In a second aspect, the present application provides a water adding control method, which is applied to a water adding system, where the water adding system includes: the system comprises a throttling valve, a flowmeter, a metering pump, a back pressure valve and monitoring equipment, wherein the throttling valve is installed at a water inlet of a water filling pipeline, the flowmeter is arranged between the throttling valve and a water outlet of the water filling pipeline, the metering pump is arranged between the flowmeter and the water outlet of the water filling pipeline, the throttling valve and the back pressure valve are used for responding to manual regulation and control operation of a user, and water quantity regulation is carried out according to the manual regulation and control operation, and the method comprises the following steps:
in the process of adding water to the material through the water adding pipeline, the flowmeter detects water flow and sends the detected water flow to the monitoring equipment;
and when the current control mode is determined to be the automatic control mode, the monitoring equipment controls the metering pump to regulate the water quantity according to the water flow detected by the flowmeter.
When the method is applied to the water adding system, richer flow regulation and control modes can be provided, under the condition that the flow meter detects the water flow between the water inlet and the water outlet, data reference can be provided for flow regulation devices in a plurality of specific areas, the water quantity at the water inlet can be regulated through the throttle valve, the water quantity can be automatically regulated in a pipeline area where the metering pump is located based on the monitoring result of the flow meter, the flow control can be carried out in the area close to the water outlet of the water adding pipeline through the back pressure valve, and under the condition that the water adding pipeline is longer, the method is favorable for meeting different water adding requirements with higher treatment efficiency.
In an alternative embodiment, the watering system further comprises a sensor assembly disposed between the back pressure valve and the outlet of the watering line, the sensor assembly being connected to the monitoring device, the method further comprising:
and the monitoring equipment monitors water quality and/or water pressure according to the detection result detected by the sensor assembly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a water adding system according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of another water adding system according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram of monitoring a water filling control process according to an embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of a throttle valve according to an embodiment of the present application.
Fig. 5 is a schematic internal structural diagram of a throttle valve according to an embodiment of the present application.
Fig. 6 is a partial schematic view of the area a in fig. 5.
Fig. 7 is a schematic structural diagram of a valve element in a throttle valve according to an embodiment of the present disclosure.
Fig. 8 is an internal structural schematic diagram of a valve element provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1, fig. 1 is a schematic view of a water adding system according to an embodiment of the present disclosure.
As shown in fig. 1, the watering system comprises: throttle valve 101, flow meter 102, metering pump 103, back pressure valve 104, and monitoring device 105. Wherein, the flow meter 102 and the metering pump 103 are both connected with the monitoring device 105.
The throttle valve 101 is installed at a water inlet of the water charging pipeline. The throttle valve 101 is a valve for controlling a fluid flow by changing a throttle section or a throttle length, and has no flow negative feedback function. For the details of the structure of the throttle valve 101, reference is made to the following description, which is not described here.
A flow meter 102 is arranged between the throttle valve 101 and the water outlet of the water feeding pipeline.
A metering pump 103 is arranged between the flowmeter 102 and the water outlet of the water feeding pipeline.
A back pressure valve 104 is arranged between the metering pump 103 and the water outlet of the water feeding pipeline. The Back Pressure Valve 104 is derived from Back Pressure Valve, and can be used for controlling the flowing conditions of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The required line pressure is maintained by back pressure valve 104 to avoid excessive pressure fluctuations.
The throttle valve 101 is used for responding to manual regulation and control operation of a user and adjusting the water quantity according to the manual regulation and control operation. The back pressure valve 104 is used for responding to manual regulation and control operation of a user and adjusting water quantity according to the manual regulation and control operation.
The throttle valve 101 and the back pressure valve 104 can respectively meet the manual control requirements of users for a water inlet and a water outlet of the water feeding pipeline.
The monitoring device 105 is configured to control the metering pump 103 to adjust the water amount according to the water flow detected by the flow meter 102 in an automatic control mode.
Wherein, when adding water to the material that needs to add water through adding the water pipeline, accessible flowmeter 102 gathers the water flow that flows to the delivery port from the water inlet of this water pipeline that adds, and supervisory equipment 105 is given in the transmission of the water flow of gathering, and supervisory equipment 105 can be used to confirm according to the water flow that flowmeter 102 detected and add the water yield to measuring pump 103 output adds water signal, can carry the water yield in adding water signal, carry out the water yield according to the water yield that supervisory equipment 105 provided with this control measuring pump 103 and adjust. The specific calculation mode of the water adding amount is related to the type of the flowmeter 102 and the metering pump 103 which are actually selected, and the specific data calculation process is not limited in the application.
In some application scenarios, a manual regulation operation for throttle valve 101 or back pressure valve 104 may be initiated by monitoring device 105, and monitoring device 105 may determine an adjustment amount for throttle valve 101 or back pressure valve 104 according to the received manual regulation operation. Illustratively, a manual control knob and an automatic control button may be provided on the monitoring device 105, and when the automatic control button is pressed, the monitoring device 105, the flow meter 102 and the metering pump 103 may cooperate to control the automatic water feeding flow. When the manual manipulation knob is rotated, the monitoring apparatus 105 may control the throttle valve 101 or the back pressure valve 104 to perform flow rate adjustment according to the degree to which the manual manipulation knob is rotated. Therefore, the safety can be improved in a manual control mode in time under the condition that the automatic control mode is out of control.
In some application scenarios, monitoring device 105 may also be used to monitor changes in the state (e.g., changes in the opening) of throttle valve 101 and back-pressure valve 104.
The monitoring device 105 may be an electric control box deployed on the site, and the electric control box is electrically connected to an upper computer and a central control device of the central control room through wires. The electric control box and the equipment of the central control room can carry out bidirectional data interaction. The electric cabinet is also connected to a power supply 108 via a wire. The electric control box is electrically connected with the flowmeter 102 in a unidirectional way. The electric cabinet is used for receiving the water flow monitored by the flowmeter 102 in a single direction. The metering pump 103 is electrically connected with the electric cabinet in a one-way manner. The metering pump 103 is used for unidirectionally receiving a water adding signal sent by the electric control box.
In the embodiment of the present application, the throttle valve 101, the flow meter 102, the metering pump 103, and the back pressure valve 104 are connected in series.
The metering pump 103 may include a first metering pump and a second metering pump, both of which are connected to the monitoring device 105. When the monitoring device 105 is configured to determine the water adding amount according to the water flow detected by the flow meter 102, the monitoring device 105 may be further configured to provide the water adding amount to the first metering pump and/or the second metering pump, so that the first metering pump and/or the second metering pump perform water amount adjustment according to the water adding amount. Wherein, set up two measuring pumps and be favorable to reducing control error.
In one example, the metering pump 103 may be of the type "JX-JM 1200/0.3".
In the system, the throttle valve 101 is arranged at the water inlet of the water feeding pipeline, the back pressure valve 104 is arranged at the position close to the water outlet, and the flowmeter 102 and the metering pump 103 are arranged between the throttle valve 101 and the back pressure valve 104, so that richer flow regulation and control modes can be provided. In the case where the flow rate of water between the water inlet and the water outlet is detected by the flow meter 102, data references can be provided for a plurality of zone-specific flow regulating devices. Based on above-mentioned system, not only can adjust the water yield of water inlet department through choke valve 101, can also be based on the monitoring result of flowmeter 102, carry out the water yield regulation to the pipeline region that measuring pump 103 is located to can also carry out flow control to the region that is close to the delivery port of watering pipeline through back pressure valve 104, under the longer condition of watering pipeline, be favorable to satisfying the different demands of watering with faster treatment effeciency.
As shown in fig. 2, the watering system may further include a sensor assembly 109, and the sensor assembly 109 is disposed between the back pressure valve 104 and the water outlet of the watering pipe. That is, the sensor unit 109 on the side away from the back pressure valve 104 is a water outlet of the water supply line as a water supply port.
The sensor assembly 109 is electrically connected to the monitoring device 105.
The sensor assembly 109 includes at least one of a water quality monitoring device and a water pressure monitoring device. The water adding system not only can provide the function of automatically controlling the flow, but also can monitor the water quality or the water pressure in the water adding control process.
The flow meter 102, the water quality monitoring device, and the water pressure monitoring device can respectively perform flow monitoring, water quality monitoring, and water pressure monitoring, and the monitoring device 105 can perform analysis processing (for example, statistics on some data or generation of some control instructions) according to the content detected by the flow meter 102, the water quality monitoring device, and the water pressure monitoring device.
Wherein, water quality monitoring device includes: a residual chlorine sensor, a pH value detection sensor and a turbidity detection sensor. The water pressure monitoring device comprises a water pressure sensor.
Under the condition that the sensor assembly 109 comprises the water quality monitoring device and the water pressure monitoring device, the residual chlorine sensor, the PH value detection sensor, the turbidity detection sensor and the water pressure sensor are connected in parallel. The mutual interference caused when the water quality and the water pressure are detected at the same time can be avoided by the parallel connection mode.
The residual chlorine sensor, the PH value detection sensor, the turbidity detection sensor and the water pressure sensor are all electrically connected with the monitoring equipment 105. The particular sensor model should not be construed as limiting the application.
Through the chlorine residue sensor the PH value detection sensor with the setting of turbidity detection sensor can be convenient for carry out water quality testing, is favorable to carrying out water pressure detection through setting up water pressure sensor. Based on this implementation, the system of adding water can carry out the monitoring of multidimension degree to the water in the pipeline through the in-process that adds water pipe.
If the monitoring device 105 is an electrical cabinet, the electrical cabinet may have a monitoring module, a processor, and a control module disposed thereon. The monitoring module may be a monitoring station configured to receive data transmitted by the flow meter 102 and the sensor assemblies 109 and send the received data to the processor, and the processor may analyze the data sent by the monitoring module, for example, the water adding amount may be determined according to the collected water flow. The control module may receive a processing instruction sent by the processor, for example, may convert the processing instruction sent by the processor according to the water adding amount into a water adding signal provided to the metering pump 103.
Optionally, the water adding system may further include an alarm device 106, and the alarm device 106 is connected to the monitoring device 105. The alarm device 106 is electrically connected to the monitoring apparatus 105. The alarm device 106 may be an audible and visual alarm.
The monitoring device 105 is configured to control the alarm device 106 to give an alarm according to the detection result detected by the sensor assembly 109.
Through this implementation, be favorable to in time adding water in-process and report to the police and indicate, can avoid in time discovering quality of water unqualified or the unqualified condition of water pressure and cause serious influence to the material that is added water because of failing. The alarm device 106 can give an alarm in time when the water quality or the water pressure is abnormal, so as to prompt a worker to perform treatment in time.
Optionally, the watering system may further include a display unit 107, and the display unit 107 is connected to the monitoring device 105. The display unit 107 is electrically connected to the monitoring device 105.
The display unit 107 is used for displaying the detection result detected by the sensor assembly 109 and the water flow detected by the flowmeter 102.
The display unit 107 can also be used to display the content sent by the monitoring device 105 to the metering pump 103, for example, the amount of water added can be displayed. Under the control of the monitoring device 105, the display unit 107 may change the displayed content.
The display unit 107 may also be configured to display a control command sent by the central control room to the monitoring device 105, display current status information (for example, opening degree) of the throttle valve 101 and the back pressure valve 104, display a simulation graph of the water supply pipeline, and display a statistical flow rate change curve, a water pressure abnormal position, a water pressure abnormal time or a water quality abnormal time.
Through foretell implementation, be favorable to the user to learn the pipeline condition of adding water.
The arrangement of the throttle valve 101, the metering pump 103 and the back pressure valve 104 in the system is beneficial to controlling the flow and the water pressure in the water adding process (the throttle valve 101, the metering pump 103 and the back pressure valve 104 are used for controlling the water flow and the water pressure, the control mode can adopt electric control or manual control, and the setting of actual parameters can be adjusted according to the actual use requirement). The flowmeter 102 can measure water flow, the metering pump 103 can simultaneously complete water flow conveying, metering and adjusting functions, and the two metering pumps 103 are convenient to use simultaneously, so that control errors are reduced. When the electric cabinet is used as the monitoring device 105, the electric cabinet can perform data processing according to the water flow information fed back by the flowmeter 102, automatically calculate the water addition amount, and then control the metering pump 103 to perform corresponding flow regulation according to the water addition amount, so as to automatically control the water addition amount in an electric control mode.
As shown in fig. 3, the system is advantageous to monitor the water flow, water quality and water pressure conditions of the materials when water is added to the materials respectively by the arrangement of the flowmeter 102, the water quality monitoring device and the water pressure monitoring device, so as to realize multidimensional monitoring. And alarming and displaying can be carried out according to the monitored condition.
A throttle valve 101 according to an embodiment of the present invention will be described below.
As shown in fig. 4, the throttle valve 101 includes: a base 201, a main casing 202 fixed to the base 201, and an upper casing 203 fixed to the main casing 202. The main housing 202 is located above the base 201, and the upper housing 203 is located above the main housing 202.
The main housing 202 is provided with a water inlet 2021 and a water outlet 2022. The passage formed when the water inlet 2021 and the water outlet 2022 communicate with each other is used for flowing fluid.
As shown in fig. 5, a screw housing 204 is embedded in the upper housing 203. A rotary screw 205 is installed in the screw housing 204. The rotary screw 205 is fixedly provided with a rotary seat 206 along the position where the screw sleeve 204 extends out of the upper housing 203, and the rotary seat 206 can be regarded as being positioned above the rotary screw 205. A valve rod 208 is arranged below the rotating screw 205, and a valve core 209 is arranged at the bottom of the valve rod 208.
The rotary base 206 is configured to drive the rotary screw 205 in the screw sleeve 204 to rotate, the rotary screw 205 is configured to drive the valve rod 208 to rotate, and the valve rod 208 is configured to drive the valve element 209 to rotate up or down when rotating, so as to communicate or isolate the water inlet 2021 and the water outlet 2022, thereby achieving flow regulation.
Optionally, an adapter 207 may be provided between the rotary screw 205 and the valve stem 208, the adapter 207 being used to achieve the engagement between the rotary screw 205 and the valve stem 208.
Based on the above implementation, the rotary base 206 rotates the rotary screw 205 inside the screw sleeve 204, and the valve rod 208 below the rotary base can be driven to rotate, so that the valve core 209 can be driven to rotate and lift, the water outlet 2022 and the water inlet 2021 of the throttle valve 101 can be conveniently circulated and used, and the water flow of the throttle valve 101 can be quickly and flexibly adjusted through the rotation fit among the rotary base 206, the rotary screw 205, the valve rod 208 and the valve core 209, and the use is convenient.
Optionally, a bellows 301 is sleeved on the upper outer side of the valve rod 208. An annular seat 303 is fixedly disposed in the main housing 202, the annular seat 303 is disposed around the outer side of the valve stem 208, and the bellows 301 is located above the annular seat 303. A first sealing ring 302 is disposed at a connecting position between the main housing 202 and the valve stem 208, and the first sealing ring 302 may be disposed at a connecting position between the inner side of the upper end of the main housing 202 and the valve stem 208. Below the annular seat 303 is provided a second sealing ring 304 (see fig. 6) fitted over the valve stem 208. Thereby, the sealing performance can be improved.
As an embodiment, as shown in fig. 7, the valve body 209 is provided with a fixed plate 402 and a through hole 403. The fixed plate 402 may be provided inside the valve element 209, and a plurality of through holes 403 may be opened outside the fixed plate 402. A water filter 501 may be provided at the port 403.
Wherein, a movable rod 401 (see fig. 4) extends from the fixed plate 402, and the movable rod 401 can be located inside the rotary screw 205 and the valve rod 208. A plurality of movable plates and at least one positioning plate are disposed on one side of the movable rod 401 away from the rotary base 206. Each movable plate may be disposed outside the movable bar 401.
The movable rod 401 is used to drive part or all of the movable plates to move, so as to change the opening of the through opening 403.
As an embodiment, as shown in fig. 8, the plurality of movable plates may include a first movable plate 404, a second movable plate 405, and a third movable plate 406, and at least one of the positioning plates may include a fourth positioning plate 407.
The first movable plate 404 is fixedly connected to the movable rod 401. The first movable plate 404 and the second movable plate 405 can be movably connected through a sliding block 408. The second movable plate 405 and the third movable plate 406 can be movably connected through a sliding block 408. The third movable plate 406 and the fourth positioning plate 407 can be movably connected through a sliding block 408. For example, each movable plate and each positioning plate may be provided with a sliding slot 409, and the movable connection between the movable plates and the positioning plates may be achieved by a manner of matching the sliding block 408 with the sliding slot 409.
For example, the lower sliding slot 409 of the first movable plate 404 may be movably connected to the second movable plate 405 through a sliding block 408, the lower side of the second movable plate 405 may also be movably connected to the third movable plate 406 through the sliding block 408, and the lower side of the third movable plate 406 may also be movably connected to a fourth positioning plate 407 fixed to the fixed plate 402 through the sliding block 408.
It can be understood that other movable connection manners may be adopted by those skilled in the art, so that the movable plates can shield the through opening 403 in the valve element 209 to different degrees under the driving action of the movable rod 401, thereby changing the flow blocking area.
By rotating the movable rod 401 inside the rotary screw 205 and the valve rod 208, the first movable plate 404 is driven to move by the second movable plate 405, and the second movable plate 405 is driven by the third movable plate 406 to move with the fourth positioning plate 407 as a reference position. Based on the implementation, the first movable plate 404, the second movable plate 405, and the third movable plate 406 can be controlled by the movable rod 401 to be unfolded or closed on the valve spool 209, so that the intercepting area can be adjusted conveniently.
Through the implementation mode, the opening degree of the port 403 on the valve core 209 can be finely adjusted under the driving action of the movable rod 401, the regulation and control mode of the movable rod 401 is simple, the movable rod 401 can be driven to move by rotating the inside of the rotary screw 205 and the valve rod 208, the movable plates are unfolded or closed, the opening degree of the port 403 is adjusted, and the closure area of the valve core 209 can be adjusted by controlling the opening degree of the port 403. When the valve rod 208 and the valve core 209 are matched for rotating and lifting, a larger adjusting range can be achieved, and the using mode is more flexible.
The flow rate regulation principle of the throttle valve 101 may include: during the use of the throttle valve 101, the screw sleeve 204 rotates inside the rotary seat 206 to drive the rotary screw 205 to rotate, and the rotary screw 205 can drive the lower adapter 207 and the valve rod 208 to rotate, so that the valve rod 208 can drive the valve core 209 at the bottom to rotate, rise or fall, thereby facilitating the circulation of the water outlet 2022 and the water inlet 2021 of the throttle valve 101. During this rotational use, the bellows 301, the first sealing ring 302, and the second sealing ring 304 in the throttle valve 101 may enhance the sealing of the valve stem 208. By rotating the movable rod 401 inside the rotary screw 205 and the valve rod 208, the expansion or the closing of the first movable plate 404, the second movable plate 405, and the third movable plate 406 on the valve element 209 can be controlled under the driving action of the movable rod 401, so as to adjust the flow area of the valve element 209. For example, when the movable rod 401 is rotated, the first plate 404 may be pulled to be unfolded by the movable rod 401, and the first plate 404 may continuously pull the second plate 405 and the third plate 406 to be unfolded, thereby closing the opening 403 of the valve element 209, and it is understood that when the rotation direction of the movable rod 401 is changed, the plates in the unfolded state may be folded, thereby increasing the opening degree of the opening 403. Based on the principle, the size of the through hole 403 can be controlled through the rotation action of the movable plate, so that the flow interception area can be adjusted. When the movable connection matching mode between the movable plates and each movable plate in the valve core 209 and the rotation lifting matching mode between the valve rod 208 and the valve core 209 are used in combination, the flow rate adjusting range of the throttle valve 101 is wider, and the use mode is more flexible.
Based on the same inventive concept, an embodiment of the present application further provides a water adding control method, which is applied to the water adding system, and the water adding system includes: the water quantity control system comprises a throttle valve 101, a flow meter 102, a metering pump 103, a back pressure valve 104 and a monitoring device 105, wherein the throttle valve 101 is installed at a water inlet of a water feeding pipeline, the flow meter 102 is arranged between the throttle valve 101 and a water outlet of the water feeding pipeline, the metering pump 103 is arranged between the flow meter 102 and the water outlet of the water feeding pipeline, and the throttle valve 101 and the back pressure valve 104 are used for responding to manual regulation and control operation of a user and adjusting water quantity according to the manual regulation and control operation.
The method comprises the following steps: during the process of adding water to the material through the water adding pipeline, the flow meter 102 detects the water flow and sends the detected water flow to the monitoring device 105. When the current control mode is determined to be the automatic control mode, the monitoring device 105 controls the metering pump 103 to adjust the water amount according to the water flow detected by the flow meter 102.
When the method is applied to the water adding system, richer flow regulation and control modes can be provided, under the condition that the flow meter 102 is used for detecting the water flow between the water inlet and the water outlet, data reference can be provided for flow regulation devices in a plurality of specific areas, the water quantity at the water inlet can be regulated through the throttle valve 101, the water quantity in a pipeline area where the metering pump 103 is located can be automatically regulated based on the monitoring result of the flow meter 102, the flow control can be carried out on the area close to the water outlet of the water adding pipeline through the back pressure valve 104, and under the condition that the water adding pipeline is long, the method is favorable for meeting different water adding requirements with higher treatment efficiency.
Optionally, the watering system further comprises a sensor assembly 109 arranged between the back pressure valve 104 and the outlet of the watering pipe, the sensor assembly 109 being connected to the monitoring device 105, the method further comprising: the monitoring device 105 performs water quality monitoring and/or water pressure monitoring according to the detection result detected by the sensor assembly 109.
Optionally, the watering system further comprises an alarm device 106, the alarm device 106 being connected to the monitoring apparatus 105, the method further comprising: the monitoring device 105 controls the alarm device 106 to give an alarm according to the detection result detected by the sensor assembly 109.
Optionally, the watering system further includes a display unit 107, the display unit 107 is connected to the monitoring device 105, and the method further includes: the monitoring device 105 controls the display unit 107 to display the detection result detected by the sensor assembly 109 and the currently monitored water flow rate according to the detection result detected by the sensor assembly 109.
For further details of the water feeding system, reference may be made to the relevant contents of the foregoing description, which are not repeated herein. The application is not limited to specific computational details.
In summary, when the water adding system is put into use, a water adding pipeline can be used to convey water to be added to a material (i.e. water required for adding water to the material) from a water inlet to a water outlet, and a throttle valve 101, a flowmeter 102, a metering pump 103, a back pressure valve 104 and a sensor assembly 109 are sequentially arranged on the water adding pipeline along the line, during the use process, the electric control box serving as a monitoring device 105 is communicated with a central control room, when automatic control is required, the monitoring device 105 starts an electric control function, the flowmeter 102 collects water flow, after the monitoring device 105 receives the water flow collected by the flowmeter 102, a processor performs operation analysis (calls some models or expressions to automatically calculate the water adding amount) to obtain water adding information, and a preset transmission module sends the water adding information (water adding amount or a water adding signal carrying the water adding information) to the metering pump 103, the metering pump 103 thus performs a corresponding flow rate regulation. For the water adding amount in the automatic control process, the throttle valve 101 and/or the back pressure valve 104 can be controlled in a manual control mode to adjust the flow rate (or adjust the water pressure) according to the actual water adding requirement. In the whole water adding process, the actual water flow, the water quality and the water pressure condition of the materials in the water adding process can be monitored in a multi-dimensional mode, the monitored result can be displayed immediately through the display unit 107, and in addition, when the water pressure abnormality and the water quality abnormality are monitored, an alarm can be timely sent out through the alarm device 106.
In the embodiments provided in the present application, it should be understood that the disclosed embodiments may be implemented in other ways. The above-described embodiments are merely illustrative, and for example, a module or a device may be divided into only one logical function, and may be implemented in other ways, and for example, a plurality of units or components may be combined or may be integrated. In addition, unless indicated otherwise, the terms "connected" and "connecting" are used broadly and may be used in a generic sense to refer to any connection between elements, devices or units through some form of communication interface, indirect coupling or communication connection, whether electrical, mechanical or otherwise. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed to a plurality of places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Unless otherwise indicated, "plurality" means two or more, and the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or component 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 application.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A watering system, comprising: the system comprises a throttling valve, a flow meter, a metering pump, a back pressure valve and monitoring equipment, wherein the flow meter and the metering pump are connected with the monitoring equipment;
the throttle valve is arranged at a water inlet of the water feeding pipeline;
a flow meter is arranged between the throttle valve and the water outlet of the water feeding pipeline, and a metering pump is arranged between the flow meter and the water outlet of the water feeding pipeline;
a back pressure valve is arranged between the metering pump and the water outlet of the water feeding pipeline;
the throttle valve and the back pressure valve are used for responding to manual regulation and control operation of a user and regulating the water quantity according to the manual regulation and control operation;
and the monitoring equipment is used for controlling the metering pump to regulate the water quantity according to the water flow detected by the flowmeter in an automatic control mode.
2. The watering system of claim 1, further comprising a sensor assembly disposed between the back pressure valve and an outlet of the watering line;
the sensor assembly is connected with the monitoring equipment;
the sensor assembly includes at least one of a water quality monitoring device and a water pressure monitoring device.
3. The watering system according to claim 2, further comprising an alarm device and a display unit, wherein the alarm device and the display unit are both connected to the monitoring device;
the monitoring equipment is used for controlling the alarm device to give an alarm according to the detection result detected by the sensor assembly;
the display unit is used for displaying the detection result detected by the sensor assembly and the water flow detected by the flowmeter.
4. The watering system of claim 2, wherein the sensor assembly comprises the water quality monitoring device and the water pressure monitoring device;
the water quality monitoring device comprises: a residual chlorine sensor, a PH value detection sensor and a turbidity detection sensor;
the water pressure monitoring device comprises a water pressure sensor;
the residual chlorine sensor, the PH value detection sensor, the turbidity detection sensor and the water pressure sensor are connected in parallel.
5. The watering system of claim 1, wherein the throttle valve comprises: the device comprises a base, a main shell fixed on the base and an upper shell fixed on the main shell;
the main shell is provided with a water inlet hole and a water outlet hole;
a screw sleeve is embedded in the upper shell, a rotary screw is installed in the screw sleeve, a rotary seat is fixedly arranged at the position of the rotary screw, which extends out of the upper shell along the screw sleeve, a valve rod is arranged below the rotary screw, and a valve core is arranged at the bottom of the valve rod;
the rotary seat is used for driving the rotary screw in the screw sleeve to rotate, the rotary screw is used for driving the valve rod to rotate, and the valve rod is used for driving the valve core to rotate to ascend or descend when rotating so as to enable the water inlet hole and the water outlet hole to be communicated or separated.
6. The watering system of claim 5, wherein the cartridge has a retaining plate and a port;
a movable rod is arranged on the fixed plate in an extending mode and is located inside the rotary screw rod and the valve rod;
a plurality of movable plates and at least one positioning plate are arranged on one side of the movable rod, which is far away from the rotating seat;
the movable rod is used for driving part or all of the movable plates to move so as to change the opening of the through opening.
7. The watering system according to claim 6, wherein the plurality of movable plates comprises a first movable plate, a second movable plate, and a third movable plate, and the at least one positioning plate comprises a fourth positioning plate;
the first movable plate is fixedly connected with the movable rod;
the first movable plate and the second movable plate are movably connected through a sliding block;
the second movable plate is movably connected with the third movable plate through a sliding block;
the third movable plate is movably connected with the fourth positioning plate through a sliding block.
8. The watering system of claim 5, wherein the valve stem is sleeved with a bellows;
a first sealing ring is arranged at the connecting position between the main shell and the valve rod;
an annular seat is fixedly arranged in the main shell, and the annular seat is arranged on the outer side of the valve rod in a surrounding manner;
and a second sealing ring sleeved on the valve rod is arranged below the annular seat.
9. A water adding control method is characterized by being applied to a water adding system, and the water adding system comprises: the system comprises a throttling valve, a flowmeter, a metering pump, a back pressure valve and monitoring equipment, wherein the throttling valve is installed at a water inlet of a water filling pipeline, the flowmeter is arranged between the throttling valve and a water outlet of the water filling pipeline, the metering pump is arranged between the flowmeter and the water outlet of the water filling pipeline, the throttling valve and the back pressure valve are used for responding to manual regulation and control operation of a user, and water quantity regulation is carried out according to the manual regulation and control operation, and the method comprises the following steps:
in the process of adding water to the material through the water adding pipeline, the flowmeter detects water flow and sends the detected water flow to the monitoring equipment;
and when the current control mode is determined to be the automatic control mode, the monitoring equipment controls the metering pump to regulate the water quantity according to the water flow detected by the flowmeter.
10. The method of claim 9, wherein the watering system further comprises a sensor assembly disposed between the backpressure valve and an outlet of the watering line, the sensor assembly connected to the monitoring device, the method further comprising:
and the monitoring equipment monitors water quality and/or water pressure according to the detection result detected by the sensor assembly.
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| CN202110337041.XA CN113075941A (en) | 2021-03-29 | 2021-03-29 | Water addition system and water addition control method |
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| CN202110337041.XA CN113075941A (en) | 2021-03-29 | 2021-03-29 | Water addition system and water addition control method |
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