CN206209327U - A kind of Multifunctional intelligent control terminal system for central heating - Google Patents

Abstract

A kind of Multifunctional intelligent control terminal system for central heating, master controller is connected to the wire communication and wireless communication interface communicated with outside respectively, the overall-in-one control schema valve group being connected with master controller respectively, for master controller and the wire communication and wireless communication interface of external communication, sensor and the man-machine interface for carrying out interaction with user and receiving power supply and power supervisor for detecting heat supplying pipeline streamflow regime, overall-in-one control schema valve group is that the check valve assembly being connected with delivery port is provided with valve body, it is connected with valve for the valve drive component for driving valve, the bottom of valve body is provided with the temperature measurement component being connected with valve inner, controller is provided with valve drive component, the input of the output end connection valve drive component of controller.The utility model can maintain the hydraulic equilibrium of system by locally, remotely controlling the parameters such as heat supply pressure, the flow of user with automatic three kinds of modes, while avoiding heat distribution uneven, reduce heat supply energy consumption.

Description

A kind of Multifunctional intelligent control terminal system for central heating

Technical field

The utility model is related to a kind of terminal system for central heating.More particularly to it is a kind of integration for collecting The Multifunctional intelligent control terminal system of middle heat supply.

Background technology

In central heating system, due to hydraulic misadjustment problem and the difference of user's house type and home location, often result in User's heat distribution is uneven, and some users are cold, some user's heat, and this is accomplished by a kind of suitable terminal control system, installs In each family, it is monitored by the Heating State of terminal-pair user, is gone out with signal evaluations such as temperature, pressure, flows The Heating State of user, the heat supply condition to user is adjusted automatically, so as to ensure the heating quality of each user.It is simultaneously logical The regulating and controlling effect of control terminal is crossed, hydraulic equilibrium state is reached, it is to avoid the overheat of user and supercooling, intelligent control heat supply feelings Condition, improves the heating efficiency of heating system, and energy loss is greatly lowered.

There is various heating network structure due to regional difference and the problem of heat supply history in China, in addition, I Heat metering policy many years have been carried out by state, there are many heat metering equipment and algorithms, complicated and diversified heating network The presence of the heat metering equipment of structure and different brands and model have impact on the use of new energy-saving equipment, and urgent need is a set of can Compatible various pipe network structures, the intelligent terminal system of various heat metering equipment is in real time monitoring the heat supply shape of each family In the case of state, the heating parameter of adjust automatically user seeks the heat supply mode of optimization, reaches reducing energy consumption, and enhancing user is relaxed The purpose of appropriateness.

Because the design of the indoor heating network of user is various, pipeline product quality is uneven, and construction quality height differs, Often there is the problem of pipe network leakage, once occur bringing incalculable damage to the property of user.Other part user dislikes Meaning usurps the recirculated water of heating network, causes heating system operation irregularity.Being badly in need of one kind can monitor the indoor pipe network circulation of user The facility of water running situation, in the case where revealing, automatically shuts down supply channel, it is to avoid the property loss of user, while Cope with user and steal the problem for putting recirculated water.

The content of the invention

Technical problem to be solved in the utility model is to provide and a kind of can adapt to being used for for various heating network structures The Multifunctional intelligent control terminal system of central heating.

The technical scheme that the utility model is used is：A kind of Multifunctional intelligent control terminal system for central heating System, including master controller, described master controller are connected to wire communication and the wireless telecommunications communicated with outside respectively Interface, the overall-in-one control schema valve group being connected with described master controller respectively, the cable modem for master controller and external communication News and wireless communication interface, the sensor for detecting heat supplying pipeline streamflow regime and for carrying out interactive and reception with user The man-machine interface of power supply and power supervisor, wherein, described overall-in-one control schema valve group, including with water inlet, delivery port with And between water inlet and delivery port be used for regulating water flow valve valve body, be provided with the valve body and described water outlet Mouth is connected for the check valve assembly for detecting water flow, is additionally provided with described valve body and is connected for driving with described valve By the aperture of itself come the valve drive component of regulating water flow, the bottom of the valve body is provided with and is mutually used in conjunction with valve inner valve In detection valve body in water flow temperature temperature measurement component, be provided with the valve drive component signal input part respectively with the non-return Valve module is connected for the controller for gathering water flow signal and water flow temperature signal in valve body, the controller with temperature measurement component The described valve drive component of output end connection input, for passing through valve drive component according to the water flow signal for being gathered The opening angle of the described valve of control.

Described check valve assembly includes：H-shaped nut, the bottom of the H-shaped nut is connected to valve body by external screw thread In upper port, the lower port that the upper grooves lid of the H-shaped nut has upper end cover, the lower recess of the H-shaped nut is set There is the bottom end cover in valve body；The magnetic induction being connected with described controller is provided with the H-shaped nut upper grooves to close； Magnet is provided with by magnet frame in the H-shaped nut lower recess, the bottom of the magnet frame is located at valve body through lower port lid Delivery port in, the bottom of the magnet frame is provided with flap, wherein, described flap can drive institute in the presence of current Magnet frame System of Rotating about Fixed Axis certain angle is stated, so that the magnetic force on and off magnetic induction by magnet is closed.

Sealing gasket is provided between described H-shaped nut and described valve body upper port.

It is tongue tube or proximity switch or Hall switch that described magnetic induction is closed.

Described temperature measurement component includes the temperature element being connected with described controller, the temperature measuring head of the temperature element Crossing in aquaporin for valve is inserted into, and is placed in the closing chamber of water, the bottom fixed body of the temperature element passes through clamp nut It is fixed at the bottom opening of the valve body, and is sealed by sealing ring.

Described valve drive component includes the motor that signal input part is connected with described controller, and one end passes through connecting shaft The power transmission shaft that device is connected with the output shaft of the motor, the other end of the power transmission shaft runs through upper opening and the institute of the valve body The upper end of the valve stated is fixedly linked, so as to change the current of regulation valve body by driving the aperture of valve under the control of the controller Amount.

The lower part of described power transmission shaft is the top that the valve body is arranged on by spigot nut, the spigot nut Periphery is also cased with being seen for examining the dial of the power transmission shaft anglec of rotation.

Described controller include control unit, be connected with described control unit respectively for receiving remote control signal Receiving unit, the transmitting element for carrying out data upload, 232 communication units and the display list that is used for field adjustable Unit, and for providing power supply original power interface circuit, wherein, described receiving unit, transmitting element and 232 communication units point Not Tong Guo communication interface connection communication bus, described control unit GPIO ends difference connection valve drive component in motor, only The magnetic induction pass returned in valve module and the temperature element in temperature measurement component.

Described sensor is included for detecting the temperature sensor of heat supplying pipeline water flow temperature, for detecting heat supplying pipeline The flow sensor of water flow and the pressure sensor for detecting heat supplying pipeline water flow pressure.

Multifunctional intelligent control terminal system for central heating of the present utility model, can adapt to various heating networks Structure, the compatible various heat metering equipment of energy and mode, lift user's heat supply comfort level, prevent pipeline leakage, protect user's wealth The multifunctional intellectual heat supply terminal of safety is produced, the monitor in real time domestic heat situation in heat supplying process finds heat supply exception in time, Adjust automatically Heating State, while to heat supply control centre Real-time Feedback Heating State, with the heat supply of real-time monitoring heating system Amount, reaches reduction heat supply energy consumption, reduces heat cost, the purpose of energy-saving and emission-reduction.The utility model, can be by locally, remotely The parameters such as heat supply pressure, the flow of user are controlled with automatic three kinds of modes, the hydraulic equilibrium of system is maintained, while avoiding heat Distribution is uneven, reduces heat supply energy consumption.The utility model can accurate detection domestic heat information, automatically form closed-loop control, together When corresponding data is sent to heat supply control centre, so as to control centre's general control Heating State, reduce heat supply energy consumption and Cost.

Brief description of the drawings

Fig. 1 is the entire block diagram of the Multifunctional intelligent control terminal system that the utility model is used for central heating；

Fig. 2 is the external structure schematic diagram of the utility model overall-in-one control schema valve group；

Fig. 3 is the internal structure schematic diagram of the utility model overall-in-one control schema valve group；

Fig. 4 is the overall structure block diagram of the utility model intelligent controller；

Fig. 5 is the circuit theory diagrams of control unit in the utility model embodiment；

Fig. 6 is the circuit theory diagrams of receiving unit in the utility model embodiment；

Fig. 7 is the circuit theory diagrams of transmitting element in the utility model embodiment；

Fig. 8 is the circuit theory diagrams of 232 communication units in the utility model embodiment；

Fig. 9 is the circuit theory diagrams of communication interface in the utility model embodiment；

Figure 10 is the circuit theory diagrams of power interface circuit in the utility model embodiment；

Figure 11 is the circuit theory diagrams of display unit in the utility model embodiment；

Figure 12 is the Multifunctional intelligent control terminal system mounting location schematic diagram that the utility model is used for central heating.

In figure

1：Valve body 11：Water inlet

12：Delivery port 13：Valve

2：Check valve assembly 21：Bottom end cover

22：Sealing gasket 23：H-shaped nut

24：Magnet 25：Magnet frame

26：Magnetic induction closes 27：Upper end cover

28：Flap 3：Valve drive component

31：Motor 32：Shaft joint

33：Power transmission shaft 34：Spigot nut

35：Dial 4：Temperature measurement component

41：Clamp nut 42：Sealing ring

43：Temperature element 431：Temperature measuring head

432：Bottom fixed body 5：Controller

51：Control unit 52：Receiving unit

53：Transmitting element 54：Communication interface

55：232 communication units 56：Display unit

100：For the Multifunctional intelligent control terminal system of central heating

200：Device for detecting temperature A：Master controller

B：Overall-in-one control schema valve group C：Wire communication and wireless communication interface

D：Sensor E：Man-machine interface and power supervisor

Specific embodiment

A kind of multifunctional intellectual for central heating of the present utility model is controlled eventually with reference to embodiment and accompanying drawing End system is described in detail.

A kind of Multifunctional intelligent control terminal system for central heating of the present utility model, by sensor to user The information such as indoor temperature, confession heat flow, water temperature be acquired, automatically generate control strategy, the heat supply by valve group to user State is adjusted.Controller being capable of compatible with digital amount signal, analog signalses.In terms of data communication, terminal system passes through Wireless and wired two kinds of form of communication carry out data transfer with heat supply control centre.Control terminal of the present utility model disclosure satisfy that The heat supplying pipeline of various structures, being capable of compatible current main central heating metering method.Do not influenceing the existing pipeline knot of user On the premise of structure and heat metering mode, hydraulic equilibrium is maintained automatically, while by intelligent algorithm, automatically adjusting the heat supply of user Energy consumption avoids the occurrence of local users overheat, and the situation of local users supercooling improves user's heat supply comfortableness.The terminal can also be monitored The flow ruuning situation of the indoor pipeline of user, is recognized accurately the water supply leakage signal of indoor pipeline, automatically shuts down pipeline, reduces User loses.The utility model is monitored by multiple means, the parameters to central heating terminal user, Reasonable Regulation And Control Temperature, pressure and data on flows, so as to realize that overall heat supply energy consumption is greatly lowered, reach energy-saving and emission-reduction and reduce heat cost Effect.

As shown in figure 1, a kind of Multifunctional intelligent control terminal system for central heating of the present utility model, including master Controller A, described master controller A are connected to the wire communication communicated with outside and wireless communication interface C respectively, point The overall-in-one control schema valve group B that is not connected with described master controller A, the wire communication for master controller A and external communication and Wireless communication interface C, the sensor D for detecting heat supplying pipeline streamflow regime and for carrying out interactive with user and receiving electricity The man-machine interface in source and power supervisor E.Described sensor D includes the TEMP for detecting heat supplying pipeline water flow temperature Device, the flow sensor for detecting heat supplying pipeline water flow and the pressure sensing for detecting heat supplying pipeline water flow pressure Device.Flow sensor, once there is pipe leakage, can in time be turned off with the indoor pipeline flow situation of real-time monitoring user, Avoid the property loss of user.The function can also prevent user's malice from stealing and put circulation water for heating, reduce the operation wind of heating system Danger.Wherein,

Described master controller A is made up of 32 control chips of model MSP430 or STM32 or LTC1700.It is main to appoint Business is to run control program and strategy, outside sensor signal is acquired and processed, to wired and wireless telecommunications numbers According to being processed, send the integrated valve group of instruction control and acted, user is received by HMI (man-machine interface keyboard and screen) Instruct and show corresponding information.

Described temperature sensor, pressure sensor and flow sensor：It is mainly used for the heating water to heat supply user Temperature, flow, pressure and other parameters are measured, and master controller A is arrived in output as electronic signals.

Described wire communication and wireless communication interface：It is responsible for connection end host, user's temperature controller, heat supply control centre The communication connection of (Surveillance center of heat supply company), integrated valve group, the wireless communication mode for using is bluetooth, radio frequency, movement The forms such as communication, wire communication uses MBUS agreements.

As shown in Fig. 2 overall-in-one control schema valve group B of the present utility model, including with water inlet 11, delivery port 12 and position It is used for the valve body 1 of the valve 13 of regulating water flow between water inlet 11 and delivery port 12, the water inlet of the valve body 1 also sets up There is fastening body 6.It is provided with the valve body 1 and be connected with described delivery port 12 for the check valve assembly 2 for detecting water flow, It is additionally provided with described valve body 1 and is connected for driving valve 13 by the aperture of itself come regulating water flow with described valve 13 Valve drive component 3, the bottom of the valve body 1 is provided with and is connected for the thermometric for detecting water flow temperature in valve body 1 with the inside of valve body 1 Component 4, is provided with signal input part and is mutually used in conjunction with the check valve assembly 2 and temperature measurement component 4 respectively on the valve drive component 3 In the controller 5 of water flow signal and water flow temperature signal in collection valve body 1, the output end connection of the controller 5 is described The input of valve drive component 3, for controlling described valve 13 by valve drive component 3 according to the water flow signal for being gathered Opening angle.

As shown in figure 3, described check valve assembly 2 includes：H-shaped nut 23, the bottom of the H-shaped nut 23 passes through outer spiral shell Line is connected in the upper port of valve body 1, and sealing gasket 22 is provided between described H-shaped nut 23 and the described upper port of valve body 1. The lower port that the upper grooves lid of the H-shaped nut 23 has upper end cover 27, the lower recess of the H-shaped nut 23 is provided with position In the bottom end cover 21 in valve body 1；The magnetic induction being connected with described controller 5 is provided with the upper grooves of H-shaped nut 23 26 are closed, it is tongue tube or proximity switch or Hall switch that described magnetic induction closes 26.Magnetic induction pass is provided with the upper end cover 27 26 cable-through holes being connected with the controller 5；Magnet is provided with by magnet frame 25 in the lower recess of H-shaped nut 23 24, the bottom of the magnet frame 25 is located in the delivery port 12 of valve body 1 through lower port lid 21, and the bottom of the magnet frame 25 is set There is flap 28, wherein, described flap 28 can drive the System of Rotating about Fixed Axis certain angle of the magnet frame 25 in the presence of current, So as to close 26 by the magnetic force on and off magnetic induction of magnet 24.

When water enters valve body by the right-hand member of valve body 1, flap 28 deflects, and touches magnetic induction and closes 26, system worked well；When Into the water of valve body 1 flow it is very little or none when, flap 28 is progressively closed off, magnetic field to magnetic induction close 26 event resolves, be System cannot normal work and close.When i.e. flap 28 is in zero-bit, valve 1 is closed.

Described temperature measurement component 4 includes the temperature element 43 being connected with described controller 5, the temperature element 43 Temperature measuring head 431 is inserted into the aquaporin excessively of valve 13, and is placed in the closing chamber of water.The bottom fixed body of the temperature element 43 432 are fixed at the bottom opening of the valve body 1 by clamp nut 41, and are sealed by sealing ring 42.The temperature of water is by surveying Warm element 43 feeds back to controller 5；The regulation of water-carrying capacity and shut-off, valve reality is driven by controller 5 by controlling valve drive component 3 It is existing.When temperature is less than required value, the supply water temperature or flow of system are suitably adjusted, and meet the requirement of heat supply temperature.

Described valve drive component 3 includes the motor 31 that signal input part is connected with described controller 5, and one end passes through The power transmission shaft 33 that shaft joint 32 is connected with the output shaft of the motor 31, the other end of the power transmission shaft 33 runs through the valve body 1 Upper opening be fixedly linked with the upper end of described valve 13, so as under the control of controller 5 by driving the aperture of valve 13 The water-carrying capacity of regulation valve body 1.The lower part of described power transmission shaft 33 is to be arranged on the upper of the valve body 1 by spigot nut 34 Portion, the periphery of the spigot nut 34 is also cased with being seen for examining the dial 35 of the anglec of rotation of power transmission shaft 33.

Valve in valve body 1 given by Fig. 3 is valve, but valve described in the utility model is not limited to valve, can also be butterfly valve, lock Valve etc..

The controller 5 includes 16 analog quantity ALT-CH alternate channels, and the instrument that can receive 4-20mA or 0-5V is believed with simulation Number, it is also possible to the signal of digital instrument is received by field bus protocols such as Modbus.In intelligent controller and centralized Control Mbus bus protocols are used between the heart, is easy to concentrate metrical information, long-range change control valve parameter and data long-term monitoring.Collocation The remote communication modules such as GPRS can realize wired or wireless communication.Intelligence control system can be by modes such as IGCT or relays Arrange in pairs or groups different types of automatically controlled execution unit, the shut-down mechanism for driving valve.

As shown in figure 4, described controller 5 includes control unit 51, respectively with being used for that described control unit 51 is connected Receive the receiving unit 52 of remote control signal, the transmitting element 53 for carrying out data upload, 232 communication units 55 and be used for The display unit 56 that field adjustable is used, and for providing power supply original power interface circuit, wherein, described receiving unit 52nd, the communication unit 55 of transmitting element 53 and 232 is respectively by the connection communication bus MBUS of communication interface 54, described control unit 51 GPIO ends difference connection valve drive component 3 in motor 31, the magnetic induction in check valve assembly 2 close 26 and temperature measurement component 4 In temperature element 43.Wherein：

Described control unit 21 can be using control chips such as model MSP430 or LPC1768.As shown in figure 5, this Utility model embodiment is using the control chip of model STM32F103.

Described receiving unit 22 and the main task of transmitting element 23 is to complete data-signal by the circuit of Fig. 6 and Fig. 7 Transmission and receiving, detailed process meets the communication standard of MBUS agreements.

232 described communication units 25 can be using the serial communication chip of model SP3232 or MAX3250.Such as Fig. 8 Shown, the utility model embodiment is using the communication chip of model MAX3232CSE, the limb 13 and pin 14 of MAX3232CSE It is reception and the transmitting terminal of serial port chip.

Described communication interface 24 as shown in figure 9, each provide 232 communications line terminals, 485 communications line terminals, MBUS communications line terminals.Described power interface circuit is as shown in Figure 10.Described display unit 26 is as shown in figure 11.

Overall-in-one control schema valve group B of the present utility model, valve 13 in valve body 1 aperture in the case where controller 5, power transmission shaft 33 are acted on It is certain angle, you can regulation uninterrupted；After controller 5 is connected to system signal, control power transmission shaft 33 drives valve 13 to rotate 90 degree, you can Shuttoff Valve 1.

As shown in figure 12, at user indoor one or many places set device for detecting temperature 200, in real time transmission user heat supply Temperature information.Device for detecting temperature 200 is by wirelessly or non-wirelessly connecting the multi-functional intelligence for central heating of the present utility model Wire communication and wireless communication interface C in energy control terminal system 100, are sent to this practicality new by the temperature of indoor diverse location Master controller A in the Multifunctional intelligent control terminal system 100 for central heating of type, master controller A are by integration Control valve group B is adjusted to the Heating State of user.

Claims (9)

1. a kind of Multifunctional intelligent control terminal system for central heating, including master controller（A）, it is characterised in that institute The master controller stated（A）The wire communication and wireless communication interface communicated with outside are connected to respectively（C）, respectively with institute The master controller stated（A）Connected overall-in-one control schema valve group（B）, for master controller（A）With the wire communication of external communication and Wireless communication interface（C）, sensor for detecting heat supplying pipeline streamflow regime（D）And for carrying out interactive with user and connecing Receive man-machine interface and the power supervisor of power supply（E）, wherein, described overall-in-one control schema valve group（B）, including with water inlet （11）, delivery port（12）And positioned at water inlet（11）And delivery port（12）Between for regulating water flow valve（13）Valve body （1）, the valve body（1）On be provided with and described delivery port（12）It is connected for the check valve assembly for detecting water flow（2）, Described valve body（1）On be additionally provided with and described valve（13）It is connected for driving valve（13）Water is adjusted by the aperture of itself The valve drive component of flow（3）, the valve body（1）Bottom be provided with and valve body（1）Inside is connected for detecting valve body（1）It is interior The temperature measurement component of water flow temperature（4）, the valve drive component（3）On be provided with signal input part respectively with the check valve assembly （2）And temperature measurement component（4）It is connected for gathering valve body（1）The controller of interior water flow signal and water flow temperature signal（5）, it is described Controller（5）The described valve drive component of output end connection（3）Input, for logical according to the water flow signal for being gathered Cross valve drive component（3）The described valve of control（13）Opening angle.

2. a kind of Multifunctional intelligent control terminal system for central heating according to claim 1, it is characterised in that Described check valve assembly（2）Including：H-shaped nut（23）, the H-shaped nut（23）Bottom valve body is connected to by external screw thread （1）Upper port in, the H-shaped nut（23）Upper grooves lid have upper end cover（27）, the H-shaped nut（23）Bottom The lower port of groove is provided with positioned at valve body（1）Interior bottom end cover（21）；The H-shaped nut（23）Be provided with upper grooves with Described controller（5）Connected magnetic induction is closed（26）；The H-shaped nut（23）Pass through magnet frame in lower recess（25）Set There is magnet（24）, the magnet frame（25）Bottom run through lower port lid（21）Positioned at valve body（1）Delivery port（12）It is interior, the magnetic Brandreth（25）Bottom be provided with flap（28）, wherein, described flap（28）The magnetic can be driven in the presence of current Brandreth（25）System of Rotating about Fixed Axis certain angle, so as to pass through magnet（24）The magnetic induction of magnetic force on and off close（26）.

3. a kind of Multifunctional intelligent control terminal system for central heating according to claim 2, it is characterised in that Described H-shaped nut（23）With described valve body（1）Sealing gasket is provided between upper port（22）.

4. a kind of Multifunctional intelligent control terminal system for central heating according to claim 2, it is characterised in that Described magnetic induction is closed（26）It is tongue tube or proximity switch or Hall switch.

5. a kind of Multifunctional intelligent control terminal system for central heating according to claim 1, it is characterised in that Described temperature measurement component（4）Include and described controller（5）Connected temperature element（43）, the temperature element（43）'s Temperature measuring head（431）It is inserted into valve（13）Cross in aquaporin, and be placed in the closing chamber of water, the temperature element（43）Bottom Fixed body（432）By clamp nut（41）It is fixed on the valve body（1）Bottom opening at, and by sealing ring（42）It is close Envelope.

6. a kind of Multifunctional intelligent control terminal system for central heating according to claim 1, it is characterised in that Described valve drive component（3）Signal input part is included with described controller（5）Connected motor（31）, one end is by connecting Axle device（32）With the motor（31）The connected power transmission shaft of output shaft（33）, the power transmission shaft（33）The other end through described Valve body（1）Upper opening and described valve（13）Upper end be fixedly linked, so as in controller（5）Control under by drive Valve（13）Aperture change regulation valve body（1）Water-carrying capacity.

7. a kind of Multifunctional intelligent control terminal system for central heating according to claim 6, described transmission Axle（33）Lower part be by spigot nut（34）It is arranged on the valve body（1）Top, the spigot nut（34）It is outer Also it is cased with week seeing power transmission shaft for inspection（33）The dial of the anglec of rotation（35）.

8. a kind of Multifunctional intelligent control terminal system for central heating according to claim 1, it is characterised in that Described controller（5）Including control unit（51）, respectively with described control unit（51）It is connected for receiving remote control The receiving unit of signal（52）, transmitting element for carrying out data upload（53）, 232 communication units（55）Adjusted with for scene The display unit that examination is used（56）, and for providing power supply original power interface circuit, wherein, described receiving unit（52）、 Transmitting element（53）With 232 communication units（55）Pass through communication interface respectively（54）Connection communication bus（MBUS）, the control Unit（51）GPIO ends difference connection valve drive component（3）In motor（31）, check valve assembly（2）In magnetic induction close （26）And temperature measurement component（4）In temperature element（43）.

9. a kind of Multifunctional intelligent control terminal system for central heating according to claim 1, it is characterised in that Described sensor（D）Including the temperature sensor for detecting heat supplying pipeline water flow temperature, for detecting heat supplying pipeline current The flow sensor of flow and the pressure sensor for detecting heat supplying pipeline water flow pressure.