CN102367967A

CN102367967A - High-low-area direct-coupled unit of energy-saving pressure-reducing substitutable-type turbine pump

Info

Publication number: CN102367967A
Application number: CN201110273971XA
Authority: CN
Inventors: 胡庆彥
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2012-03-07

Abstract

The invention relates to a high-low-area direct-coupled unit of an energy-saving pressure-reducing substitutable-type turbine pump, which aims at solving the heating and energy-saving problems of high-rise buildings, and adopts a technical scheme that: on a closed-type water supply-return heating pipe network, a pressurizing water circulating pump is used for pumping low-area water with pressure of a certain degree from a low-area water supply pipe to be supplied to a high-rise building, the water pump is controlled by a variable-frequency controller, a program logic controller (PLC) and a pressure sensor, a high-area pipe network is protected against vaporization and emptying, hot returned water which is used by the high-rise building is decompressed by a hydroturbine of the energy-saving pressure-reducing substitutable-type turbine pump, so the returned water of the low area is free from over-pressure. Energy which is produced by reducing the pressure of the returned water from high area to the low area is coaxially transferred by the energy-saving pressure-reducing substitutable-type turbine pump to a water pump head for pressurizing on the other end at identical speed or at different speeds, so pump lift of the supplied water is provided, and the pressurizing water circulating pump runs at a variable and low frequency to further save the electric energy.

Description

Energy-saving decompression substitutes formula turbine pump high low area direct connection unit

Technical field:

The present invention relates to a kind of heating equipment, specifically is that energy-saving decompression substitutes formula turbine pump high low area direct connection unit.

Background technology:

The turn of the century, along with economic development, skyscraper stands in the big ground of China like the mushrooms after rain.The thing followed is the change of the heating system of skyscraper; In the HVAC industry; The system that separates with the heat exchanger of enclosed is not because its circulation pump lift is considered the building discrepancy in elevation, only need consider pipeline along journey and local joint, going to solve skyscraper heating like this is to economize ability most.But because a variety of causes; The general reason on the low side of supply water temperature particularly, can not heat exchange or heat exchange uneconomical, so utilizing on the hydraulic pressure basis, the low district of heating; Supply the heating system in high district using with supercharging circulating pump stack lift, the main at present two big technological schools that divide in market in various places.First; It is voltage limiting mode in the logical big gas force open type of heating height subregion place's return pipe.Second; It is the pressure reducing mode that utilizes flow balance valve decompression current limliting amount enclosed.Its operation principle is: utilize the low district of heating pressure, laminate water supply with the supercharging water circulating pump, after the assurance high district heating, with flow balance valve decompression current limliting amount, the backwater that reduces pressure goes heating in the backheat source to backwater more again.If hang down the then termination of pumping protection inadequately of district's pressure, and regulate and distribute its pipe network of high low area flow equilibrium, with the check-valves on the feed pipe, the magnetic valve of return pipe or hydraulic pressure open and close valve during power failure, and isolated height district and low district pipe network make to hang down and distinguish not superpressure, reach security purpose.

Above-mentioned dual mode pluses and minuses are had nothing in common with each other, but power consumption is identical, and it is fixed that the lift of water pump all will come according to the building discrepancy in elevation.Nervous along with land used, building is increasingly high, its power consumption be enclosed the system that separates with heat exchanger the heating system energy consumption 3-7 doubly.How energy-conservation? This is a big problem.I declared patent " the energy conversion device " (patent No.: ZL200720102497.3) continue 2007; Use for reference again " double water pump patent 94215381.3 ", special research and development be used in skyscraper, high low area direct connection system, energy-saving decompression substitutes formula turbine pump high low area direct connection unit.Through experimental verification, fractional energy savings has surpassed 25% of original system.

Summary of the invention:

The objective of the invention is in order to solve skyscraper heating and energy saving problem.Technical scheme of the present invention is that on the confession backwater heating pipe network that pressure reduction is arranged of enclosed, feed pipe extracts the low district water supply that certain pressure is arranged from low district with the supercharging water circulating pump; Toward high rise building water supply; Water pump is by frequency-variable controller, PLC, pressure sensor control, and the high district of assurance pipe network is not vaporized, do not turned, and skyscraper uses up the backwater of heat; Substitute the hydraulic turbine decompression of formula turbine pump through energy-saving decompression, in order that make not superpressure of low district backwater.Energy-saving decompression substitutes that the energy of its high backwater decompression of distinguishing low district of formula turbine pump is coaxial to be transmitted moments of torsion with speed or different speed and give on the water pump head that other end supercharging uses, and improves the water supply lift supercharging water circulating pump step-down is turned round frequently, thereby saved electric energy.During power failure, isolated high district of the magnetic valve that is provided with on supercharging water circulating pump water supply network outlet non-return valve and the return pipe and low sound zone system.

The low district heat supply that the present invention includes pressure reduction supplies return pipe net, high district's supercharging water circulating pump, high district heat supply pipeline, high district water return pipeline, energy-saving decompression to substitute formula turbine pump, magnetic valve, VFC cabinet, valve, pressure detecting instrument.Turbine pump is that the hydraulic turbine and water pump head fixedly are assemblied in the bearing spider both sides by same mechanical axis; With speed or different speed motion; Can paperback, upright dress; The hydraulic turbine of turbine pump set decompression usefulness on height district water return pipeline is the active turbine; The set water pump head of water supply line is passive turbine in the height district, and it is different with function that it takes turns the footpath; Turbine pump water pump head can be contained in supercharging respectively with electronic water circulating pump front and back, magnetic valve or hydraulic pressure must be housed behind the hydraulic turbine open and close valve; Electronic booster water pump is by frequency converter, PLC control adjustment operation.

The invention has the beneficial effects as follows and improve the stability that heating is supplied water, cut down the consumption of energy.

Description of drawings:

Fig. 1 is a fundamental diagram of the present invention;

Fig. 2 is a turbine pump paperback structural representation;

Fig. 3 is the upright assembling structure sketch map of turbine pump.

Among the figure: 1, low district supplies valve on the backwater, and 2, water collector, 3, valve on the unit, 4, the eddy flow dirt separator, 5, the under-voltage protection pressure sensor; 6, supercharging water circulating pump, 7, check-valves, 8, water wheels pump side water pump, 9, axle, 10, the water wheels pump side hydraulic turbine; 11, the unit level pressure is with pressure sensor 12, high district user, and 13, air bleeding valve, 14, Pressure gauge, 15, magnetic valve, 16, back-water valve (BWV); 17, water collector, 18, low district user, 19, low district return pipe net, 20, unit VFC cabinet.

The specific embodiment:

Like Fig. 1,2, shown in 3, starting the water filling stage, all open low district and supply valve (1) on the backwater; Water collector (2) is gone up valve, valve on the unit (3) etc., water filling in the high sound zone system; System water gets into high district feed pipe through eddy flow dirt separator (4) back, and supercharging water circulating pump (6) is by under-voltage protection pressure sensor (5) control start and stop; Magnetic valve (15) manual control is closed all the time, until height district user (12) water is arranged, till the not exhaust of air bleeding valve (13).During normal the operation; When the unit level pressure is distinguished not exhaust of user (12) system exhaust valve (13) with pressure sensor (11) indication height; And after certain safety pressure margin was arranged, unit VFC cabinet (20) dropped into operation automatically, and magnetic valve (15) is opened automatically; Adjustment back-water valve (BWV) (16); Water wheels pump side water pump (8), axle (9), the water wheels pump side hydraulic turbine (10) promote progressively to accelerate down running in the high low area pressure differential, make high district pressure reduce to low district pressure near after incorporate low district return pipe net (19) into, the water wheels pump side hydraulic turbine (10) coaxial (9) driving torque drive water wheels pump side water pumps (8); Frequency converter in the VFC cabinet is reduced on the low frequency of system's normal operating condition for supercharging circulating pump (6) by 50HZ, reach the purpose of energy savings.To adjust upward valve of water collector (17), water knockout drum (2) this moment, make the normal operation of low district user (18).During power failure, high sound zone system is by check-valves (7), magnetic valve (15) and the isolated purpose of safety that reaches in low district.System's backwater can not produce water hammer owing to receive the damping action of the hydraulic turbine.

Claims

1. energy-saving decompression substitutes formula turbine pump high low area direct connection unit, it is characterized in that the low district heat supply that includes pressure reduction supplies return pipe net, high district's supercharging water circulating pump, high district heat supply pipeline, high district water return pipeline, energy-saving decompression to substitute formula turbine pump, magnetic valve, VFC cabinet, valve, pressure detecting instrument.

2. substitute formula turbine pump high low area direct connection unit based on the described energy-saving decompression of claim 1; It is characterized in that turbine pump is that the hydraulic turbine and water pump head fixedly are assemblied in the bearing spider both sides through same mechanical axis; With speed or the motion of difference speed, can paperback or upright dress formation.

3. energy-saving decompression according to claim 2 substitutes formula turbine pump high low area direct connection unit; It is characterized in that the turbine pump hydraulic turbine that set decompression is used on height district water return pipeline is the active turbine; The set water pump head of water supply line is passive turbine in the height district, and it is different with function that it takes turns the footpath.

4. substitute formula turbine pump high low area direct connection unit according to claim 2 or 3 described energy-saving decompressions; It is characterized in that the water pump head on the turbine pump can be contained in supercharging water circulating pump front or back respectively; Magnetic valve or hydraulic pressure must be housed behind the hydraulic turbine open and close valve, the supercharging water circulating pump is by frequency converter, PLC control adjustment operation.