CN210766975U - Variable pressure water supply equipment with high-level energy storage and intelligent sensing functions - Google Patents
Variable pressure water supply equipment with high-level energy storage and intelligent sensing functions Download PDFInfo
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- CN210766975U CN210766975U CN201921655384.5U CN201921655384U CN210766975U CN 210766975 U CN210766975 U CN 210766975U CN 201921655384 U CN201921655384 U CN 201921655384U CN 210766975 U CN210766975 U CN 210766975U
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Abstract
The utility model discloses a variable pressure water supply equipment with high-order energy storage and intelligent perception, including diaphragm type atmospheric pressure jar, automatically controlled cabinet, the water supply is responsible for, the water supply branch pipe, diaphragm type atmospheric pressure jar is installed at the building top, the end of intaking that the water supply is responsible for is located ground, the play water end that the water supply is responsible for links to each other with diaphragm type atmospheric pressure jar, be equipped with the main water pump on the water supply is responsible for, the water supply branch pipe both ends connect in the main water pump both ends, be equipped with auxiliary water pump on the water supply branch pipe, be equipped with the flowmeter on the water supply is responsible for, intake pressure sensor, go out water pressure sensor, the flowmeter. The utility model discloses a diaphragm type atmospheric pressure jar direct mount is in high-rise building's roof, therefore has avoided quality of water secondary pollution and has increased top layer user's water pressure, has promoted energy storage efficiency, has not only guaranteed quality of water safety, has promoted water supply equipment operating efficiency moreover.
Description
Technical Field
The utility model relates to a water supply equipment, in particular to variable voltage water supply equipment with high-order energy storage and intelligent perception.
Background
In the eighties, the gravity water supply mode of the roof water tank adopted by tap water is generally applied by the advantages of high energy storage and water supply efficiency and stable water pressure, but the water supply mode also has the following two defects: firstly, because the roof water tank is communicated with the atmosphere, the secondary pollution of water quality is easy to cause. Secondly, because the water tank on the top of the building is used for supplying water by gravity, the water pressure for residents in the top zone is low.
In the nineties, in order to overcome the defects, a roof water tank is removed, and water is supplied by a variable-frequency constant-pressure mode, so that the problem of the roof water tank is solved, and the problem of low water supply efficiency is caused. In order to solve the problem, an air energy storage tank is usually configured at the water outlet end of the variable-frequency constant-pressure water supply equipment, when the water pump stops with water valley and small flow, compressed air in the energy storage tank extrudes water in the tank to realize uninterrupted water supply, and the water pump is restarted to supply water and simultaneously store energy again until the pressure in the energy storage tank is reduced to the lower limit of the water supply pressure. When the water supply is carried out in a low-rise building, the contradiction between the water supply efficiency and the volume of the energy storage tank is not quite outstanding, but when the water supply is carried out in a high-rise building, the volume of the energy storage tank needs to be increased by times to maintain the same water quantity under the condition of the same water supply pressure difference, and the pressure bearing grade of the energy storage tank is correspondingly improved.
At present, the tap water pressurized water supply equipment installs an air energy storage tank on one floor or the negative floor because: first, the initial product configuration of a pressurized water supply facility is habitually retained and is habitually natural. Secondly, if the energy storage tank is installed at the top end of the building, corresponding installation building space is needed. In the existing 'design code for water supply and drainage of buildings', the description of the air pressure energy storage tank is the component parts of water supply equipment, and the air pressure energy storage tank is arranged in a water pump room on one floor or one floor below the ground, and the corresponding building structure and the pipeline design are the same. That is, from product to design, the pneumatic energy storage tank is installed together with the water pump, which is consistent with the performance of the water supply equipment product. The fundamental reason is that the problems of the existing air pressure energy storage tank are not sufficiently known.
At present, the volume of the air energy storage tank arranged at the water outlet end of the equipment is generally 0.06-3.53m for reasons of cost and installation space3If the water supply pressure range is 0.9-1.0MPa, the corresponding pressure difference is 0.1 MPa, the energy storage expansion water supply volume is only one tenth of that of the whole tank body, namely 0.006-0.353 m3. The air pressure tank widely used at present has the advantage that the higher the water supply pressure is, the smaller the energy storage regulating water supply amount is under the condition of the same volume according to P1V 1= P2V 2. The traditional water supply equipment needs to start the water pump 5 times in one hour under the water supply condition of the air pressure energy storage tank of 0.9-1.0 Mpa.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a simple structure, with low costs, energy storage are efficient has high-order energy storage and intelligent perception's variable voltage water supply equipment.
The utility model provides a technical scheme of above-mentioned problem is: a variable pressure water supply device with high-level energy storage and intelligent sensing comprises a diaphragm type air pressure tank, an electric control cabinet, a water supply main pipe and a water supply branch pipe, wherein the diaphragm type air pressure tank is installed at the top end of a building, the water supply main pipe extends to the top end of the building from the ground, the water inlet end of the water supply main pipe is located on the ground, the water outlet end of the water supply main pipe is connected with the diaphragm type air pressure tank, a main water pump is arranged on the part, located on the ground, of the water supply main pipe, the two ends of the water supply branch pipe are connected with the two ends of the main water pump in parallel, an auxiliary water pump is arranged on the water supply branch pipe, two sides of the main water pump and two sides of the auxiliary water pump on the water supply branch pipe are respectively provided with a check valve and a flow switch, a main pipe flow meter and a water inlet pressure sensor are, the flow switch, the flow meter and the water inlet pressure sensor and the water outlet pressure sensor are all connected with the electric control cabinet.
According to the variable pressure water supply equipment with high-level energy storage and intelligent sensing, the water outlet end of the water supply main pipe is provided with the automatic exhaust valve.
The variable pressure water supply equipment with high-order energy storage and intelligent sensing comprises an electric control cabinet, a variable pressure control unit, an intelligent water use sensing unit, an electronic non-negative pressure control unit, a central control unit, an auxiliary frequency converter, a main frequency converter, a touch screen and a wireless communication module, wherein the output end of a water outlet pressure sensor is respectively connected with the input end of the variable pressure control unit and the input end of the intelligent water use sensing unit, the output end of a flow meter is respectively connected with the input end of the variable pressure control unit and the input end of the intelligent water use sensing unit, the output end of the variable pressure control unit and the output end of the intelligent water use sensing unit are both connected with the central control unit, the output end of a water inlet pressure sensor is connected with the central control unit after passing through the electronic non-negative pressure control unit, and the flow switch, the touch screen and the wireless communication, the central control unit is connected with the auxiliary water pump after passing through the auxiliary frequency converter, and is connected with the main water pump after passing through the main frequency converter.
According to the variable pressure water supply equipment with high-level energy storage and intelligent sensing, the main chip of the central control unit adopts a PLC I with the model number of S7-200 SMART.
According to the variable pressure water supply equipment with high-level energy storage and intelligent sensing, the main chip of the variable pressure control unit adopts a PLC II with the model number of S7-200.
According to the variable pressure water supply equipment with high-level energy storage and intelligent sensing, the main chip of the intelligent water use sensing unit adopts PLC III with the model number of S7-200.
The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions is characterized in that the auxiliary frequency converter is EV1000, and the main frequency converter is EV 2000.
The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions is characterized in that the flow switch is VH 500.
According to the variable pressure water supply equipment with high-level energy storage and intelligent sensing functions, the type of the main chip of the wireless communication module is GRM 203.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a diaphragm type atmospheric pressure jar direct mount is in every high-rise building's pipe shaft to replace roof water tank and air energy storage jar, because diaphragm type atmospheric pressure jar is totally airtight and have 0.1 Mpa air pressure, therefore avoided quality of water secondary pollution and increased top layer user's water pressure, promoted energy storage efficiency, not only guaranteed quality of water safety, promoted water supply equipment operating efficiency moreover. The diaphragm type air pressure tank water supply and the water pump water supply, the auxiliary water pump water supply and the main water pump water supply are stably switched, and the water supply quality is improved.
2. The utility model discloses be equipped with the no negative pressure control unit of electron, the no negative pressure control unit of electron remains the running water inlet tube net pressure throughout and is not less than the settlement threshold value, and the original pressure of make full use of running water improves water supply efficiency and maintains pipe network safety.
3. The utility model discloses be equipped with variable voltage control unit, variable voltage control unit will keep end user water pressure stable according to user's flow variation automatic adjustment water supply pressure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a structural block diagram of the electric control cabinet in fig. 1.
Fig. 3 is a circuit diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, the variable pressure water supply equipment with high-level energy storage and intelligent sensing comprises a diaphragm type air pressure tank 1, an electric control cabinet 3, a water supply main pipe and a water supply branch pipe, wherein the diaphragm type air pressure tank 1 is installed at the top end of a building, the water supply main pipe extends from the ground to the top end of the building, the water inlet end of the water supply main pipe is located on the ground, the water outlet end of the water supply main pipe is connected with the diaphragm type air pressure tank 1, a main water pump 6 is arranged on the water supply main pipe at the ground part, two ends of the water supply branch pipe are connected in parallel with two ends of the main water pump 6, an auxiliary water pump 5 is arranged on the water supply branch pipe, two sides of the main water pump 6 on the water supply main pipe and two sides of the auxiliary water pump 5 on the water supply branch pipe are respectively provided with a check valve 7 and a flow switch 8, a flow meter 9 and a water inlet pressure sensor 10 are arranged at a position between the The flow switch 8, the flowmeter 9 and the water inlet pressure sensor 10 are connected with the water outlet pressure sensor 4 and the electric control cabinet 3.
And an automatic exhaust valve 2 is arranged at the water outlet end of the water supply main pipe.
As shown in fig. 2, the electric control cabinet 3 includes a variable voltage transformation control unit 11, an intelligent water consumption sensing unit 12, an electronic non-negative pressure control unit 13, a central control unit 14, an auxiliary frequency converter 15, a main frequency converter 16, a touch screen 17 and a wireless communication module 18, wherein an output end of the water outlet pressure sensor 4 is respectively connected with an input end of the variable voltage transformation control unit 11 and an input end of the intelligent water consumption sensing unit 12, an output end of the flow meter 9 is respectively connected with an input end of the variable voltage transformation control unit 11 and an input end of the intelligent water consumption sensing unit 12, an output end of the variable voltage transformation control unit 11 and an output end of the intelligent water consumption sensing unit 12 are both connected with the central control unit 14, an output end of the water inlet pressure sensor 10 is connected with the central control unit 14 after passing through the electronic non-negative pressure control unit 13, and, The wireless communication module 18 is connected with the central control unit 14, the central control unit 14 is connected with the auxiliary water pump 5 after passing through the auxiliary frequency converter 15, and the central control unit 14 is connected with the main water pump 6 after passing through the main frequency converter 16.
As shown in FIG. 3, the main chip of the central control unit 14 is PLC I with model S7-200 SMART. The main chip of the variable voltage transformation control unit 11 adopts a PLC II with the model number of S7-200. The main chip of the intelligent water use sensing unit 12 adopts a PLC III with the model number of S7-200, and the electronic non-negative pressure control unit 13 adopts an AI-519BPID controller. The auxiliary frequency converter 15 is EV1000, and the main frequency converter 16 is EV 2000. The model of the flow switch 8 is VH 500. The model of the main chip of the wireless communication module 18 is GRM 203.
The 4-20mA signal of the water outlet pressure sensor is input from the 1+ end of the EMAI04 analog quantity module and is shared by the PLC I of the central control unit 14, the PLC II of the variable pressure control unit 11 and the PLC III of the intelligent water sensing unit 12. The 4-20mA signal of the water inlet pressure sensor is connected to the AI-519BPID controller through IN1/COM, and the electronic non-negative pressure control signal is transmitted to the central control unit 14 through the A/B terminal. The instantaneous flow and accumulated flow data of the flowmeter 9 are transmitted to the PLC II of the variable voltage transformation control unit 11, the PLC III of the intelligent water consumption sensing unit 12 and the PLC I of the central control unit 14 through RS485 serial ports. The switching value signal of the flow switch 8 is respectively connected to the input ends.3 and.5 of the PLC I of the central control unit 14. The operation signals of the auxiliary frequency converter 15EV1000 and the main frequency converter 16EV2000 are respectively controlled by normally open contacts of the relays KA1 and KA2, and the relay coils KA1 and KA2 are respectively connected to output ends.0 and.2 of the PLC I of the central control unit 14. The Ethernet port of the touch screen 17HMI is connected to the Ethernet port of the PLC i of the central control unit 14, and communication between the two is realized. The RS485 serial port of the PLC I of the central control unit 14 is connected with the PLC II of the variable voltage control unit 11, the PLC III of the intelligent water consumption sensing unit 12 and the RS485 serial port of the wireless communication module 18GRM203 to achieve communication. And an RS485 serial port of a PLC I of the central control unit 14 is connected with RS485 serial ports of the auxiliary frequency converter 15EV1000 and the main frequency converter 16EV2000 so as to realize communication and control.
The utility model discloses a theory of operation does: when the intelligent water consumption sensing unit 12 senses that the user does not use water or the water consumption is small, the information is read by the central control unit 14, the auxiliary water pump 5 is controlled to decelerate and stop running after the energy storage of the diaphragm type air pressure tank 1 is completed, and the water supply equipment enters a high-level energy storage water supply state. When the diaphragm type air pressure tank 1 supplies water to a user, the intelligent water consumption sensing unit 12 can sense the water consumption rate of the user, calculate the optimal pressurizing and water supplementing point, start the auxiliary frequency converter 15 in advance to drive the auxiliary water pump 5, and smoothly convert the energy of the high diaphragm type air pressure tank 1 into the auxiliary water pump 5 to supply water to the user before the energy is reduced to the lower limit. When the intelligent water consumption sensing unit 12 senses that the water consumption of the user is further increased to be above the rated flow of the auxiliary water pump 5, the main frequency converter 16 is started to drive the main water pump 6 to operate, and meanwhile, the auxiliary water pump 5 is controlled to decelerate until the flow of the auxiliary water pump 5 is zero, and the auxiliary water pump exits from operation. When the water consumption of a user is reduced to be within the rated flow range of the auxiliary water pump 5, the auxiliary water pump 5 starts to operate, and meanwhile, the main water pump 6 is controlled to decelerate until the flow is zero, and the operation is stopped. When the intelligent water consumption sensing unit 12 senses that the user does not use water or the water consumption is small, the auxiliary water pump 5 stores energy for the diaphragm type air pressure tank 1, and the water supply equipment automatically enters a high-level energy storage pressure maintaining state after the energy storage is finished. The electronic non-negative pressure control unit 13 and the variable pressure control unit 11 automatically participate in the whole process to ensure high-quality water supply. The electronic non-negative pressure control unit 13 always keeps the pressure of the tap water inlet pipe network not lower than a set threshold value, fully utilizes the original pressure of tap water, improves the water supply efficiency and maintains the safety of the pipe network. The variable pressure control unit 11 will automatically adjust the water supply pressure according to the user flow change, keeping the water pressure of the end user stable. All the running water pumps are withdrawn, and the running water pumps are all stopped by adopting variable-frequency driving to decelerate to zero flow, so that the water supply pressure fluctuation is reduced, and the water hammer is prevented from being generated.
Claims (9)
1. The utility model provides a variable pressure water supply equipment with high-order energy storage and intelligent perception which characterized in that: the device comprises a diaphragm type air pressure tank, an electric control cabinet, a water supply main pipe and a water supply branch pipe, wherein the diaphragm type air pressure tank is arranged at the top end of a building, the water supply main pipe extends from the ground to the top end of the building, the water inlet end of the water supply main pipe is positioned on the ground, the water outlet end of the water supply main pipe is connected with the diaphragm type air pressure tank, a main water pump is arranged on the ground part of the water supply main pipe, the two ends of the water supply branch pipe are connected in parallel with the two ends of the main water pump, an auxiliary water pump is arranged on the water supply branch pipe, check valves and flow switches are respectively arranged on the two sides of the main water pump on the water supply main pipe and the two sides of the auxiliary water pump on the water supply branch pipe, a flow meter and a water inlet pressure sensor are arranged at the position between the main water pump and the water inlet, are all connected with an electric control cabinet.
2. The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions as claimed in claim 1, wherein the variable pressure water supply equipment comprises: and an automatic exhaust valve is arranged at the water outlet end of the water supply main pipe.
3. The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions as claimed in claim 1, wherein the variable pressure water supply equipment comprises: the electric control cabinet comprises a variable transformation control unit, an intelligent water use sensing unit, an electronic non-negative pressure control unit, a central control unit, an auxiliary frequency converter, a main frequency converter, a touch screen and a wireless communication module, wherein the output end of the water outlet pressure sensor is respectively connected with the input end of the variable transformation control unit and the input end of the intelligent water use sensing unit, the output end of the flow meter is respectively connected with the input end of the variable transformation control unit and the input end of the intelligent water use sensing unit, the output end of the variable transformation control unit and the output end of the intelligent water use sensing unit are both connected with the central control unit, the output end of the water inlet pressure sensor is connected with the central control unit after passing through the electronic non-negative pressure control unit, the flow switch, the touch screen and the wireless communication module are connected with the central control unit, and the central control unit is connected, the central control unit is connected with the main water pump through the main frequency converter.
4. The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions as claimed in claim 3, wherein the variable pressure water supply equipment comprises: the main chip of the central control unit adopts a PLC I with the model number of S7-200 SMART.
5. The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions as claimed in claim 3, wherein the variable pressure water supply equipment comprises: the main chip of the variable voltage transformation control unit adopts a PLC II with the model number of S7-200.
6. The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions as claimed in claim 3, wherein the variable pressure water supply equipment comprises: the main chip of the intelligent water sensing unit adopts PLC III with the model number of S7-200.
7. The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions as claimed in claim 3, wherein the variable pressure water supply equipment comprises: the auxiliary frequency converter is EV1000, and the main frequency converter is EV 2000.
8. The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions as claimed in claim 3, wherein the variable pressure water supply equipment comprises: the flow switch is in a model of VH 500.
9. The variable pressure water supply equipment with high-level energy storage and intelligent sensing functions as claimed in claim 3, wherein the variable pressure water supply equipment comprises: the model of the main chip of the wireless communication module is GRM 203.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565735A (en) * | 2019-09-30 | 2019-12-13 | 湖南省大成水务发展有限责任公司 | Variable pressure water supply equipment with high-level energy storage and intelligent sensing functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565735A (en) * | 2019-09-30 | 2019-12-13 | 湖南省大成水务发展有限责任公司 | Variable pressure water supply equipment with high-level energy storage and intelligent sensing functions |
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