CN103061384A - Secondary-pressurizing energy-saving water-supply system for high-rise building and energy-saving water supply method - Google Patents
Secondary-pressurizing energy-saving water-supply system for high-rise building and energy-saving water supply method Download PDFInfo
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- CN103061384A CN103061384A CN201310027405XA CN201310027405A CN103061384A CN 103061384 A CN103061384 A CN 103061384A CN 201310027405X A CN201310027405X A CN 201310027405XA CN 201310027405 A CN201310027405 A CN 201310027405A CN 103061384 A CN103061384 A CN 103061384A
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Abstract
Disclosed are a secondary-pressurizing energy-saving water-supply system for a high-rise building and an energy-saving water supply method. The secondary-pressurizing energy-saving water-supply system for the high-rise building comprises a valve, a main water inlet pipe, a mainstream flow sensor, a mainstream pressure sensor, a tee joint, an ejector, an auxiliary pressure sensor, a water pump, a first one-way valve, a control box with a controller, a virtual high-level water tank, a second one-way valve, a first electric adjusting valve, a second electric adjusting valve, an auxiliary flow sensor, a surge tank and a user pipeline which are connected mutually. The structure of the ejector is optimized, the technique of the virtual high-level water-tank is adopted, and the energy-saving water supply method is free in energy input, so that the rate of energy recovery of water in a municipal water pipe network is greatly increased, power consumption of the main pump is reduced by 10-35%, the energy is saved, the stability and security is improved and energy conservation and environmental friendliness are achieved significantly.
Description
Technical field
The invention belongs to the high-floor feedwater field, particularly a kind of energy-conservation high-floor feedwater system and energy saving water supply method thereof for secondary pressurized.
Background technology
Present highrise building all over the world is more and more, and is also more and more extensive to the demand of secondary water-supply.The comparatively leading second pressure water supply mode of present stage technology is the box type negative-pressure-free water system, the characteristics of this water system are first municipal administration to be come water to let out in the water tank, supply water to the secondary pressurized main pump by flow control valve or the flow matches device based on threeway afterwards.For reaching the pressure coupling, between water tank and threeway, usually also need a little pump or auxiliary pump so that the water of water tank reaches the pressure that municipal administration comes water.The shortcoming of this water system is that stability is not enough, and energy-saving effect is not obvious, not only not energy-conservation on the contrary power consumption under large flow water supply condition.
The patent No. is to disclose a kind of adjustable ratio jet device in the Chinese patent of CN2177115Y, this invention has solved ejector itself can not enter ejector mixing chamber and the problem that is inhaled into fluid by regulation and control, its solution is at the nozzle place water sealing slice to be set, can be inhaled into the flow that fluid enters mixing chamber by regulation and control by turning handle, thereby regulate the ratio of pipe network inflow and water tank water intake amount.But it still exists technical deficiency to show: water sealing slice is arranged on jet expansion and causes flow losses excessive, has seriously reduced the flow velocity of pipe network water at jet expansion, and the pressure with pipe network water does not take full advantage of.
The patent No. is to disclose the box non-negative pressure method of water supply device of a kind of compensation in the Chinese patent of CN 202157370 U, this invention arranges a compensation tank, supplies water simultaneously by compensation tank and main pump pipeline, improves compensation ability, improve roof tank water quality, reduce the municipal ductwork pressure fluctuation.But it also has very large deficiency in energy saving, shows: main line water and compensation water are realized mixing by compensated pump, not only do not have energy-conservation this power consumption link of compensated pump that also increased; In addition, do not have the gas type accumulator on its compensation tank, city planting ductwork water becomes normal pressure after entering compensation tank, does not take full advantage of potential energy and the kinetic energy of city planting ductwork water.
In sum, can be found out by the problems referred to above that the major defect that existing second pressure water supply equipment exists is not have efficient energy recycle device, energy consumption can't accomplish that greatly energy-conserving and environment-protective, stable deficiency and safety need further to improve.
Summary of the invention
The invention provides a kind of energy-conservation high-floor feedwater system and energy saving water supply method thereof for secondary pressurized, comprise that described energy-conservation high-floor feedwater system for secondary pressurized includes valve, main water inlet tube, the main current flow quantity sensor, the main flow pressure sensor, threeway, injector, auxiliary pressure sensor, water pump, the first one way valve, control cabinet with controller, virtual high level cistern, the second one way valve, the first electric control valve, the second electric control valve, the auxiliary flow sensor, vacuum tank and user pipe interconnect, by to the improvement of ejector structure and use virtual high level cistern technology, and in conjunction with its energy saving water supply method under the prerequisite of energy input, greatly improved the energy recovery rate of city planting ductwork water, reduced the power consumption of main pump 10-35%, saved energy, can also further improve stability and the safety of water supply, accomplish energy-conserving and environment-protective truly.
For achieving the above object, technical scheme of the present invention is:
A kind of energy-conservation high-floor feedwater system for secondary pressurized, described energy-conservation high-floor feedwater system for secondary pressurized includes valve 2, main water inlet tube 3, main current flow quantity sensor 4, main flow pressure sensor 5, threeway 6, injector 7, auxiliary pressure sensor 8, water pump 9, the first one way valve 10, control cabinet 11 with controller, virtual high level cistern 12, the second one way valve 16, the first electric control valve 17, the second electric control valve 18, auxiliary flow sensor 19, vacuum tank 21 and user pipe 22, main water inlet tube 3 connects access city planting ductwork 1 by valve 2, be provided with main current flow quantity sensor 4 and main flow pressure sensor 5 on the main water inlet tube 3, the left end of the delivery port connecting tee 6 of main water inlet tube 3, the right-hand member of threeway 6 connects the playpipe of injector 7, the upper end of threeway 6 is by being provided with the first electric control valve 17 and being connected the pipeline of one way valve 16 and connecting the water inlet 23 of virtual high level cistern 12, the delivery port 24 of virtual high level cistern 12 is by being provided with auxiliary flow sensor 19 and being connected the pipeline of electric control valve 18 and connecting the induction tunnel of injector 7, injector 7 is connected with water pump 9 by the pipeline that is provided with auxiliary pressure sensor 8, water pump 9 connects user pipe 22 by the pipeline that is provided with the first one way valve 10, and the pipeline between the first one way valve 10 and user pipe 22 is equipped with vacuum tank 21; Described main current flow quantity sensor 4, main flow pressure sensor 5, auxiliary pressure sensor 8, water pump 9, the first electric control valve 17, the second electric control valve 18 and auxiliary flow sensor 19 all are connected with controller in the control cabinet 10, main current flow quantity sensor 4 is used for measuring the flow of main water inlet tube 3, main flow pressure sensor 5 is used for measuring the pressure of main water inlet tube 3, auxiliary pressure sensor 8 is used for measuring pressure before the pump of water pump 9, and auxiliary flow sensor 19 is used for measuring the flow of the injection current that injector 7 derives.
Described virtual high level cistern 12 comprises box or pot type water tank 111, liquid level sensor 13, gas type accumulator 14, virtual high level cistern with pressure sensor 15, blowoff valve 20, the water inlet 23 of virtual high level cistern 12, the delivery port 24 of virtual high level cistern 12; Wherein liquid level sensor 13, gas type accumulator 14 and virtual high level cistern are arranged on the water tank 111 with pressure sensor 15, liquid level sensor 13 is used for measuring the liquid level in the water tank 111, gas type accumulator 14 is used for storing pressure and the energy of flow that flows into the water in the water tank 111, virtual high level cistern is used for measuring pressure in the water tank 111 with pressure sensor 15, blowoff valve 20 is arranged on the lower end of water tank 111, the water inlet 23 of virtual high level cistern 12 is arranged on the side of water tank 111, and the delivery port 24 of virtual high level cistern 12 is arranged on the lower end of water tank 111.
Described injector 7 comprises playpipe 25, mixing machine 26, and induction tunnel 27, collapsible tube 28, changeover portion 29 and diffuser pipe 30, described playpipe 25 stretches into into the left end of mixing machine 26, and the right-hand member contraction section of playpipe 25 stretches into into the left end of collapsible tube 28; The upper end of mixing machine 26 connects induction tunnel 27, and the right-hand member of mixing machine 26 connects the bigger diameter end of collapsible tube 28; The miner diameter end of collapsible tube 28 is connected with changeover portion 29 left ends, and the right-hand member of changeover portion 29 links to each other with the miner diameter end of diffuser pipe 30; The axis conllinear of playpipe 25, collapsible tube 28, changeover portion 29 and diffuser pipe 30.
The left end of described playpipe 25 is pipe, and the right-hand member of playpipe 25 is the shrinkage type Taper Pipe; Collapsible tube 28 is the shrinkage type conical tube, and changeover portion 29 is pipe, and the pipe diameter of changeover portion 29 is identical with the miner diameter end diameter of collapsible tube 28 and diffuser pipe 30; The left end of diffuser pipe 30 is the expanding conical tube, and the right-hand member of diffuser pipe 30 is pipe.
The energy saving water supply method of described energy-conservation high-floor feedwater system for secondary pressurized is for when the water supply volume of user pipe 22 is little, and the discharge that namely detects main water inlet tube by main current flow quantity sensor 3 is Q
1And Q
1During less than setting value Q, the controller in the control cabinet 11 just controls the second electric control valve 18 that is connected with injector 7 and cuts out, so that water supply volume all from the playpipe 25 of injector 7, is come steadily to supply water like this; When user's water supply volume was large, the discharge that namely detects main water inlet tube 3 by main current flow quantity sensor 3 was Q
2And Q
2During greater than setting value Q, the second electric control valve 18 that the controller control in the control cabinet is connected with injector 7 is opened, and according to Q
2And the control of the controller in the difference control cabinet between the Q arranges the aperture of the second electric control valve 18 so that the flow value that auxiliary flow sensor 19 detects reaches (Q
2-Q) * 120% is if namely the flow value that detects of auxiliary flow sensor 19 is greater than (Q
2-Q) aperture of controlling the second electric control valve 18 of the controller in 120% control cabinet of * diminishes until the flow value that auxiliary flow sensor 19 detects reaches (Q
2-Q) * 120% is if the flow value that auxiliary flow sensor 19 detects is less than (Q
2-Q) the interior controller of 120% control cabinet of * is controlled the aperture change of the second electric control valve 18 greatly until the flow value that auxiliary flow sensor 19 detects reaches (Q
2-Q) * 120%, the water in the virtual like this high level cistern 12 enter mixing machine 26 from induction tunnel 27; And playpipe 25 is the shrinkage type jet pipe, the flow rate of water flow that ejects from the playpipe right-hand member is larger, so that its pressure flows to the pressure of the current A2 in the induction tunnel 27 less than virtual high level cistern 12, therefore the left end at collapsible tube 28 forms low-pressure area, under the swabbing action of current A1 in playpipe 25, current A2 in the induction tunnel 27 further accelerate decompression inflow changeover portions 29 by collapsible tube 28 after flowing into current A1 blending in low-pressure area and the playpipe 25, speed and the pressure of current after the blending in changeover portion 29 remains unchanged, then flow into diffuser pipe 30, the current that flow into diffuser pipe 30 flow into the front pipe of water pump 9 after diffuser pipe 30 interior deceleration pressurizations, controller in control cabinet 10 is delivered to user pipe 22 after handling water pump 9 pressurizations again, reach more than 60% of city planting ductwork hydraulic pressure so that arrive the pressure energy of current before water pump 9 of user pipe 22 like this, when the controller in control cabinet 10 is handled water pump 9 work simultaneously, vacuum tank 21 is also filled with water, when user's water supply volume is lower than default water limiting value, controller in the control cabinet 10 cuts out water pump 9, stop to draw water from city planting ductwork 1, this moment, user's water was flowed into to realize to supply water by the water of vacuum tank 21 interior storages, when the liquid level in liquid level sensor 13 detects virtual high level cistern 12 is lower than the low level setting value in addition, controller in the control cabinet 12 is controlled the first electric control valve 17 and is opened, make the water in the city planting ductwork 1 flow into water tank 111, meanwhile, controller in the control cabinet 12 is according to the work of virtual high level cistern with the value control gas type accumulator 14 of pressure sensor 15, the air intake valve that is about to gas type accumulator 14 is opened, gas type accumulator 14 just begins to store pressure-air and accumulation of energy, so that the pressure of the current of city planting ductwork 1 and the energy of flow can be stored by air energy-storage device 13 in virtual high level cistern, when the liquid level in liquid level sensor 13 detects virtual high level cistern 11 is higher than high-order setting value, controller in the control cabinet 12 controls the first electric control valve 17 and cuts out, city planting ductwork 1 stops to virtual high level cistern 12 water fillings, in addition in the energy saving water supply process, virtual high level cistern pressure sensor 15 is used for guaranteeing the security of operation of virtual high level cistern 11, when ductwork pressure occurs when unusual, be the pipeline of city planting ductwork when bearing pressure and being higher than default municipal ductwork pressure limiting value the controllers in the control cabinet 12 handle the first electric control valve 17 and close, and when virtual high level cistern pressure sensor 15 was sensed pressure in the water tank 111 and is lower than water tank hydraulic pressure value of defining of setting, the controllers in the control cabinet 12 cut out the second electric control valve 18; And auxiliary pressure sensor 8 is for detection of the operation conditions of described energy-conservation high-floor feedwater system, show in real time energy recovery rate and energy-saving effect with this, and if the inconsistent i.e. explanation of database of the system monitoring expert system in the controller in the force value that detects of auxiliary pressure sensor 8 and the control cabinet 12 eligible for repair operation troubles appears.
The box advantage of comparing without the negative pressure secondary supply equipment of the present invention and tradition: the present invention uses the virtual high level cistern technology of a virtual high position and injector injection principle, so that the pressure of city planting ductwork water is fully utilized, water flow pressure before the water pump can return to more than 60% of city planting ductwork hydraulic pressure, reduced the power of water pump, save the energy, reduced the initialization expense of water pump; In addition, the volume of virtual high level cistern is reduced to 1/3 of legacy equipment, has reduced the initialization expense of equipment, has reduced the volumetric spaces of equipment; At last, the present invention can provide according to user's water demand stable water supply by control system.
Description of drawings
Fig. 1 is the structural representation of virtual high level cistern of the present invention.
Fig. 2 is the structural representation of the water supply network of the present invention energy-conservation high-floor feedwater system of being used for secondary pressurized.
Fig. 3 is the structural representation of injector of the present invention, and wherein arrow represents water (flow) direction.
The specific embodiment
The present invention will be further described below by specific embodiment:
As shown in Figure 2, the energy-conservation high-floor feedwater system that is used for secondary pressurized, described energy-conservation high-floor feedwater system for secondary pressurized includes valve 2, main water inlet tube 3, main current flow quantity sensor 4, main flow pressure sensor 5, threeway 6, injector 7, auxiliary pressure sensor 8, water pump 9, the first one way valve 10, control cabinet 11 with controller, virtual high level cistern 12, the second one way valve 16, the first electric control valve 17, the second electric control valve 18, auxiliary flow sensor 19, vacuum tank 21 and user pipe 22, main water inlet tube 3 connects access city planting ductwork 1 by valve 2, be provided with main current flow quantity sensor 4 and main flow pressure sensor 5 on the main water inlet tube 3, the left end of the delivery port connecting tee 6 of main water inlet tube 3, the right-hand member of threeway 6 connects the playpipe of injector 7, the upper end of threeway 6 is by being provided with the first electric control valve 17 and being connected the pipeline of one way valve 16 and connecting the water inlet 23 of virtual high level cistern 12, the delivery port 24 of virtual high level cistern 12 is by being provided with auxiliary flow sensor 19 and being connected the pipeline of electric control valve 18 and connecting the induction tunnel of injector 7, injector 7 is connected with water pump 9 by the pipeline that is provided with auxiliary pressure sensor 8, water pump 9 connects user pipe 22 by the pipeline that is provided with the first one way valve 10, and the pipeline between the first one way valve 10 and user pipe 22 is equipped with vacuum tank 21; Described main current flow quantity sensor 4, main flow pressure sensor 5, auxiliary pressure sensor 8, water pump 9, the first electric control valve 17, the second electric control valve 18 and auxiliary flow sensor 19 all are connected with controller in the control cabinet 10, main current flow quantity sensor 4 is used for measuring the flow of main water inlet tube 3, main flow pressure sensor 5 is used for measuring the pressure of main water inlet tube 3, auxiliary pressure sensor 8 is used for measuring the front pressure of pump of water pump 9, auxiliary flow sensor 19 is used for measuring the flow of the injection current that injector 7 derives, and one way valve 9 and one way valve 16 are used for anti-sealing and reflux.
As shown in Figure 1, described virtual high level cistern 12 comprises box or pot type water tank 111, liquid level sensor 13, gas type accumulator 14, virtual high level cistern with pressure sensor 15, blowoff valve 20, the water inlet 23 of virtual high level cistern 12, the delivery port 24 of virtual high level cistern 12; Wherein liquid level sensor 13, gas type accumulator 14 and virtual high level cistern are arranged on the water tank 111 with pressure sensor 15, liquid level sensor 13 is used for measuring the liquid level in the water tank 111, gas type accumulator 14 is used for storing pressure and the energy of flow that flows into the water in the water tank 111, virtual high level cistern is used for measuring pressure in the water tank 111 with pressure sensor 15, blowoff valve 20 is arranged on the lower end of water tank 111, the water inlet 23 of virtual high level cistern 12 is arranged on the side of water tank 111, and the delivery port 24 of virtual high level cistern 12 is arranged on the lower end of water tank 111.When the liquid level in liquid level sensor 13 detects virtual high level cistern 12 is lower than the low level setting value, controller in the control cabinet is controlled the first electric control valve 17 and is opened, make the water in the city planting ductwork 1 flow into water tank 111, meanwhile, controller in the control cabinet is according to the work of the value control air energy-storage device 14 of virtual high level cistern 12 usefulness pressure sensors 15, the pressure of city planting ductwork current and the energy of flow are stored by gas type accumulator 14 in water tank like this, rather than be wasted, improved capacity usage ratio.When the liquid level in liquid level sensor 12 detects virtual high level cistern 11 was higher than high-order setting value, the controller control electric control valve 15 in the control cabinet cut out, and city planting ductwork 1 stops to virtual high level cistern 12 water fillings.Utilize the gas type accumulator to store pressure and the energy of flow of the water of city planting ductwork, be equivalent in the situation that does not promote virtual high level cistern height, utilize the pressure of city planting ductwork water self that water extraction is raised to the height corresponding with its pressure, therefore, this water tank with the gas type accumulator is referred to as virtual high level cistern.The energy that the gas type accumulator stores is used for increasing the pressure fluctuation that draught jet capacity and pressure and heeling pump suction produce.
As shown in Figure 3, described injector 7 comprises playpipe 25, mixing machine 26, induction tunnel 27, collapsible tube 28, changeover portion 29 and diffuser pipe 30, described playpipe 25 stretches into into the left end of mixing machine 26, and the right-hand member contraction section of playpipe 25 stretches into into the left end of collapsible tube 28; The upper end of mixing machine 26 connects induction tunnel 27, and the right-hand member of mixing machine 26 connects the bigger diameter end of collapsible tube 28; The miner diameter end of collapsible tube 28 is connected with changeover portion 29 left ends, and the right-hand member of changeover portion 29 links to each other with the miner diameter end of diffuser pipe 30; The axis conllinear of playpipe 25, collapsible tube 28, changeover portion 29 and diffuser pipe 30.The left end of described playpipe 25 is pipe, and the right-hand member of playpipe 25 is the shrinkage type Taper Pipe, and the current of city planting ductwork 1 accelerate decompression therein; Collapsible tube 28 is the shrinkage type conical tube, accelerates post-decompression current and forms negative pressuren zone at the bigger diameter end of collapsible tube 28, the water in this negative pressuren zone suction induction tunnel 27; Current accelerate decompression in collapsible tube 28 interior continuation after mixing; Changeover portion 29 is pipe, and the pipe diameter of changeover portion 29 is identical with the miner diameter end diameter of collapsible tube 28 and diffuser pipe 30; The left end of diffuser pipe 30 is the expanding conical tube, and the right-hand member of diffuser pipe 30 is pipe, the current supercharging of slowing down therein.
The energy saving water supply method of described energy-conservation high-floor feedwater system for secondary pressurized is for when the water supply volume of user pipe 22 is little, and the discharge that namely detects main water inlet tube by main current flow quantity sensor 3 is Q
1And Q
1During less than setting value Q, the controller in the control cabinet 11 just controls the second electric control valve 18 that is connected with injector 7 and cuts out, so that water supply volume all from the playpipe 25 of injector 7, is come steadily to supply water like this; When user's water supply volume was large, the discharge that namely detects main water inlet tube 3 by main current flow quantity sensor 3 was Q
2And Q
2During greater than setting value Q, the second electric control valve 18 that the controller control in the control cabinet is connected with injector 7 is opened, and according to Q
2And the control of the controller in the difference control cabinet between the Q arranges the aperture of the second electric control valve 18 so that the flow value that auxiliary flow sensor 19 detects reaches (Q
2-Q) * 120% is if namely the flow value that detects of auxiliary flow sensor 19 is greater than (Q
2-Q) aperture of controlling the second electric control valve 18 of the controller in 120% control cabinet of * diminishes until the flow value that auxiliary flow sensor 19 detects reaches (Q
2-Q) * 120% is if the flow value that auxiliary flow sensor 19 detects is less than (Q
2-Q) the interior controller of 120% control cabinet of * is controlled the aperture change of the second electric control valve 18 greatly until the flow value that auxiliary flow sensor 19 detects reaches (Q
2-Q) * 120%, the water in the virtual like this high level cistern 12 enter mixing machine 26 from induction tunnel 27; And playpipe 25 is the shrinkage type jet pipe, the flow rate of water flow that ejects from the playpipe right-hand member is larger, so that its pressure flows to the pressure of the current A2 in the induction tunnel 27 less than virtual high level cistern 12, therefore the left end at collapsible tube 28 forms negative pressuren zone, under the swabbing action of current A1 in playpipe 25, current A2 in the induction tunnel 27 further accelerate decompression inflow changeover portions 29 by collapsible tube 28 after flowing into current A1 blending in negative pressuren zone and the playpipe 25, speed and the pressure of current after the blending in changeover portion 29 remains unchanged, then flow into diffuser pipe 30, the current that flow into diffuser pipe 30 flow into the front pipe of water pump 9 after diffuser pipe 30 interior deceleration pressurizations, controller in control cabinet 10 is delivered to user pipe 22 after handling water pump 9 pressurizations again, reach more than 60% of city planting ductwork hydraulic pressure so that arrive the pressure energy of current before water pump 9 of user pipe 22 like this, when the controller in control cabinet 10 is handled water pump 9 work simultaneously, vacuum tank 21 is also filled with water, when user's water supply volume is lower than default water limiting value, controller in the control cabinet 10 cuts out water pump 9, stop to draw water from city planting ductwork 1, this moment, user's water was flowed into to realize to supply water by the water of vacuum tank 21 interior storages, when the liquid level in liquid level sensor 13 detects virtual high level cistern 12 is lower than the low level setting value in addition, controller in the control cabinet 12 is controlled the first electric control valve 17 and is opened, make the water in the city planting ductwork 1 flow into water tank 111, meanwhile, controller in the control cabinet 12 is according to the work of virtual high level cistern with the value control gas type accumulator 14 of pressure sensor 15, the air intake valve that is about to gas type accumulator 14 is opened, gas type accumulator 14 just begins to store pressure-air and accumulation of energy, so that the pressure of the current of city planting ductwork 1 and the energy of flow are stored by air energy-storage device 13 in virtual high level cistern, when the liquid level in liquid level sensor 13 detects virtual high level cistern 11 is higher than high-order setting value, controller in the control cabinet 12 controls the first electric control valve 17 and cuts out, city planting ductwork 1 stops to virtual high level cistern 12 water fillings, in addition in the energy saving water supply process, virtual high level cistern pressure sensor 15 is used for guaranteeing the security of operation of virtual high level cistern 11, when ductwork pressure occurs when unusual, be the pipeline of city planting ductwork when bearing pressure and being higher than default municipal ductwork pressure limiting value the controllers in the control cabinet 12 handle the first electric control valve 17 and close, and when virtual high level cistern pressure sensor 15 was sensed pressure in the water tank 111 and is lower than water tank hydraulic pressure value of defining of setting, the controllers in the control cabinet 12 cut out the second electric control valve 18; And auxiliary pressure sensor 8 is for detection of the operation conditions of described energy-conservation high-floor feedwater system, show in real time energy recovery rate and energy-saving effect with this, and if the inconsistent i.e. explanation of database of the system monitoring expert system in the controller in the force value that detects of auxiliary pressure sensor 8 and the control cabinet 12 eligible for repair operation troubles appears.
The pressure of current before water pump that mixes by the injector injection can reach more than 60% of city planting ductwork hydraulic pressure, so just the hydraulic pressure with city planting ductwork effectively uses, reduce the operating power of water pump, realized energy-saving effect, and can reduce the initialization expense of equipment.When the water supply volume of user pipe is excessive; the user pipe water mainly comes the self-virtualizing high level cistern; gas type accumulator on the virtual high level cistern can aspirate the pressure fluctuation that produces by heeling pump; the water yield of playpipe is not with increase in demand; it is stable that speed in the playpipe and pressure keep; keep the pressure stability of city planting ductwork water side, thereby protected city planting ductwork.
Claims (5)
1. energy-conservation high-floor feedwater system that is used for secondary pressurized, it is characterized in that described energy-conservation high-floor feedwater system for secondary pressurized includes valve (2), main water inlet tube (3), main current flow quantity sensor (4), main flow pressure sensor (5), threeway (6), injector (7), auxiliary pressure sensor (8), water pump (9), the first one way valve (10), control cabinet (11) with controller, virtual high level cistern (12), the second one way valve (16), the first electric control valve (17), the second electric control valve (18), auxiliary flow sensor (19), vacuum tank (21) and user pipe (22), main water inlet tube (3) connects access city planting ductwork (1) by valve (2), be provided with main current flow quantity sensor (4) and main flow pressure sensor (5) on the main water inlet tube (3), the left end of the delivery port connecting tee (6) of main water inlet tube (3), the right-hand member of threeway (6) connects the playpipe of injector (7), the upper end of threeway (6) is by being provided with the first electric control valve (17) and being connected the pipeline of one way valve (16) and connecting the water inlet (23) of virtual high level cistern (12), the delivery port (24) of virtual high level cistern (12) is by being provided with auxiliary flow sensor (19) and being connected the pipeline of electric control valve (18) and connecting the induction tunnel of injector (7), injector (7) is connected with water pump (9) by the pipeline that is provided with auxiliary pressure sensor (8), water pump (9) connects user pipe (22) by the pipeline that is provided with the first one way valve (10), and the pipeline between the first one way valve (10) and user pipe (22) is equipped with vacuum tank (21); Described main current flow quantity sensor (4), main flow pressure sensor (5), auxiliary pressure sensor (8), water pump (9), the first electric control valve (17), the second electric control valve (18) and auxiliary flow sensor (19) all with control cabinet (10) in controller be connected, main current flow quantity sensor (4) is used for measuring the flow of main water inlet tube (3), main flow pressure sensor (5) is used for measuring the pressure of main water inlet tube (3), auxiliary pressure sensor (8) is used for measuring pressure before the pump of water pump (9), and auxiliary flow sensor (19) is used for measuring the flow of the injection current that injector (7) derives.
2. the energy-conservation high-floor feedwater system for secondary pressurized according to claim 1, it is characterized in that described virtual high level cistern (12) comprise box or pot type water tank (111), liquid level sensor (13), gas type accumulator (14), virtual high level cistern with pressure sensor (15), blowoff valve (20), the water inlet (23) of virtual high level cistern (12), the delivery port (24) of virtual high level cistern (12); Liquid level sensor (13) wherein, gas type accumulator (14) and virtual high level cistern are arranged on the water tank (111) with pressure sensor (15), liquid level sensor (13) is used for measuring the liquid level in the water tank (111), gas type accumulator (14) is used for storing pressure and the energy of flow that flows into the water in the water tank (111), virtual high level cistern is used for measuring the interior pressure of water tank (111) with pressure sensor (15), blowoff valve (20) is arranged on the lower end of water tank (111), the water inlet (23) of virtual high level cistern (12) is arranged on the side of water tank (111), and the delivery port (24) of virtual high level cistern (12) is arranged on the lower end of water tank (111).
3. the energy-conservation high-floor feedwater system for secondary pressurized according to claim 2, it is characterized in that described injector (7) comprises playpipe (25), mixing machine (26), induction tunnel (27), collapsible tube (28), changeover portion (29) and diffuser pipe (30), described playpipe (25) stretches into into the left end of mixing machine (26), and the right-hand member contraction section of playpipe (25) stretches into into the left end of collapsible tube (28); The upper end of mixing machine (26) connects induction tunnel (27), and the right-hand member of mixing machine (26) connects the bigger diameter end of collapsible tube (28); The miner diameter end of collapsible tube (28) is connected with changeover portion (29) left end, and the right-hand member of changeover portion (29) links to each other with the miner diameter end of diffuser pipe (30); The axis conllinear of playpipe (25), collapsible tube (28), changeover portion (29) and diffuser pipe (30).
4. the energy-conservation high-floor feedwater system for secondary pressurized according to claim 3, the left end that it is characterized in that described playpipe (25) is pipe, the right-hand member of playpipe 25 is the shrinkage type Taper Pipe; Collapsible tube (28) is the shrinkage type conical tube, and changeover portion (29) is pipe, and the pipe diameter of changeover portion (29) is identical with the miner diameter end diameter of collapsible tube (28) and diffuser pipe (30); The left end of diffuser pipe (30) is the expanding conical tube, and the right-hand member of diffuser pipe (30) is pipe.
5. the energy saving water supply method of the energy-conservation high-floor feedwater system for secondary pressurized according to claim 3 is characterized by when the water supply volume of user pipe (22) is little, and the discharge that namely detects main water inlet tube by main current flow quantity sensor (3) is Q
1And Q
1During less than setting value Q, the controller in the control cabinet (11) just controls the second electric control valve (18) that is connected with injector (7) and cuts out, so that water supply volume all from the playpipe (25) of injector (7), is come steadily to supply water like this; When user's water supply volume was large, the discharge that namely detects main water inlet tube (3) by main current flow quantity sensor (3) was Q
2And Q
2During greater than setting value Q, the second electric control valve (18) that the controller control in the control cabinet is connected with injector (7) is opened, and according to Q
2And the difference between the Q arranges the aperture of the second electric control valve (18), and according to Q
2And the control of the controller in the difference control cabinet between the Q arranges the aperture of the second electric control valve (18) so that the flow value that auxiliary flow sensor (19) detects reaches (Q
2-Q) * 120% is if namely the flow value that detects of auxiliary flow sensor (19) is greater than (Q
2-Q) aperture of controlling the second electric control valve (18) of the controller in 120% control cabinet of * diminishes until the flow value that auxiliary flow sensor (19) detects reaches (Q
2-Q) * 120% is if the flow value that auxiliary flow sensor (19) detects is less than (Q
2-Q) the interior controller of 120% control cabinet of * is controlled the aperture change of the second electric control valve (18) greatly until the flow value that auxiliary flow sensor (19) detects reaches (Q
2Water in the-Q) * 120%, virtual like this high level cistern (12) enters mixing machine (26) from induction tunnel (27); And playpipe (25) is the shrinkage type jet pipe, the flow rate of water flow that ejects from the playpipe right-hand member is larger, so that its pressure flows to the pressure of the current A2 in the induction tunnel (27) less than virtual high level cistern (12), therefore the left end at collapsible tube (28) forms negative pressuren zone, under the swabbing action of current A1 in playpipe (25), current A2 in the induction tunnel (27) further accelerates decompression inflow changeover portion (29) by collapsible tube (28) after flowing into current A1 blending in negative pressuren zone and the playpipe (25), speed and the pressure of current after the blending in changeover portion (29) remains unchanged, then flow into diffuser pipe (30), the current that flow into diffuser pipe (30) slow down to pressurize in diffuser pipe (30) and flow into afterwards the front pipe of water pump (9), controller in control cabinet (10) is delivered to user pipe (22) after handling water pump (9) pressurization again, reach more than 60% of city planting ductwork hydraulic pressure so that arrive the current of user pipe (22) at the front pressure energy of water pump (9) like this, when the controller in control cabinet (10) is handled water pump (9) work simultaneously, vacuum tank (21) is also filled with water, when user's water supply volume is lower than default water limiting value, controller in the control cabinet (10) cuts out water pump (9), stop to draw water from city planting ductwork (1), this moment, user's water was flowed into to realize to supply water by the water that stores in the vacuum tank (21), when the liquid level in liquid level sensor (13) detects virtual high level cistern (12) is lower than the low level setting value in addition, controller in the control cabinet (12) is controlled the first electric control valve (17) and is opened, make the water in the city planting ductwork (1) flow into water tank (111), meanwhile, controller in the control cabinet (12) is according to the work of virtual high level cistern with the value control gas type accumulator (14) of pressure sensor (15), the air intake valve that is about to gas type accumulator (14) is opened, gas type accumulator 14 just begins to store pressure-air and accumulation of energy, so that the pressure of the current of city planting ductwork (1) and the energy of flow are stored by air energy-storage device (13) in virtual high level cistern, when the liquid level in liquid level sensor (13) detects virtual high level cistern (11) is higher than high-order setting value, controller in the control cabinet (12) controls the first electric control valve (17) and cuts out, city planting ductwork (1) stops to virtual high level cistern (12) water filling, in addition in the energy saving water supply process, virtual high level cistern pressure sensor (15) is used for guaranteeing the security of operation of virtual high level cistern (11), when ductwork pressure occurs when unusual, be the pipeline of city planting ductwork when bearing pressure and being higher than default municipal ductwork pressure limiting value the controller in the control cabinet (12) handle the first electric control valve (17) and close, and the pressure in virtual high level cistern pressure sensor (15) is sensed water tank (111) is when being lower than water tank hydraulic pressure value of defining of setting, and the controller in the control cabinet (12) cuts out the second electric control valve (18); And auxiliary pressure sensor (8) is for detection of the operation conditions of described energy-conservation high-floor feedwater system, show in real time energy recovery rate and energy-saving effect with this, and auxiliary pressure sensor (8) is if eligible for repair operation troubles appears in the inconsistent i.e. explanation of the database of the system monitoring expert system in the controller in the force value that detects and the control cabinet (12).
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| CN108755846A (en) * | 2018-05-31 | 2018-11-06 | 陈晓茜 | A kind of high level resident automation water-storing device |
| CN109523889A (en) * | 2018-11-30 | 2019-03-26 | 中国建筑设计研究院有限公司 | A kind of building secondary water-supply energy conservation pilot test system and method |
| CN112359914A (en) * | 2020-11-16 | 2021-02-12 | 张广英 | High-drop injection energy-saving water supply system |
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| CN115748882A (en) * | 2022-11-08 | 2023-03-07 | 中都工程设计有限公司 | Energy-saving water supply system |
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