CN2132140Y

CN2132140Y - Steam spraying heating pump

Info

Publication number: CN2132140Y
Application number: CN 92218254
Authority: CN
Inventors: 王博
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-04
Filing date: 1992-07-04
Publication date: 1993-05-05
Anticipated expiration: 2002-07-04

Abstract

The utility model relates to a novel steam spraying heating pump which makes use of a steam spraying principle to direct heat up hot water, belonging to the liquid heater of a heat-generation unit. The steam spraying heating pump is characterized in that a one-way valve is arranged at the entrance of a steam spraying pipe to adjust steam flow and prevent the back flow of circulating water; an exhaust pipe 4 is arranged above a pump body in order to exhaust gas; the both ends of the pump body adopt a ball-shaped head structure; the connection of the pump body and the whole pipelines adopts weld bead connection. The steam spraying heating pump has the advantages of simple structure, low cost, convenient commercial process, no vibration, low noise, good energy saving effect, safe operation, and no steam water impaction. The utility model is an ideal hot-water heating heat exchanger for high buildings whose heights are more than 30m.

Description

Steam spraying heating pump

A kind of steam sprays heat pump, is to utilize the steam ejector principle directly to be heated into the device of hot water, is used for heating system, belongs to the fluid heater that heat-generating device is arranged.

In the heating system field, the mode that adds hot water has following several at present: 1. positive displacement heating; 2. water tank type heating; 3. carbonated drink Hybrid Heating; Preceding two kinds of mode of heatings are commonplace; but its distinct disadvantage is arranged; because surface-type heater; bulky, investment is high, the thermal efficiency is low, condensate return system is complicated; energy waste is bigger; and direct-type heater water hammer is serious, produces strong vibrations and noise during heating, does not meet environmental protection requirement.And the steam-water injection that uses at present, though solved the problem of vapour, hydrothermal exchange, the injection pressurization of but having ignored steam must rely on water circulating pump to overcome the flow resistance of water in the heating system, so energy-saving effect is not obvious in the hot water system.Existing steam sprays heat pump, because flange arrangement is adopted at its both ends, easily form eddy current loss at two ends and cause the loss of kinetic energy, bearing capacity is also poor, between each parts that have with being threaded, its fastness and air-tightness are all good inadequately, and above-mentioned steam sprays the usefulness that heat pump can only be used for supplying with the hot water heating of bathroom hot water and low-rise building, can't solve skyscraper (more than 30 meters) hot water heating problem.

Task of the present utility model is to design and a kind ofly can reduces the kinetic energy consumption of carbonated drink when mixing, and improves pump lift, can spray heat pump for the novel steam of the skyscraper hot water heating more than 30 meters.

Structure of the present utility model is seen accompanying drawing 1.

1-check valve 2-jet pipe 3-pump housing 4-blast pipe

5-dome head 6-mixing tube 7-diffuser pipe 8-water inlet pipe

The operation principle that steam sprays heat pump is: saturated vapor adiabatic expansion steam jet of coming from the vapour source, steam flows in the outside nozzle adjustment, wrap up under the effect in this low-voltage high speed air-flow suction, produce pressure differential between the backwater of heating system and the steam flow, thereby the backwater that makes heating system is inhaled into mixing tube and is heated and quickens, steam is passed to water with heat and momentum in mixing tube after, the temperature reduction condenses into water, enter diffuser pipe with recirculated water, the speed falling pressure increases, until outlet pressure reaches the flow resistance that overcomes water in the heating system.

The characteristics of this heat pump are to be provided with check valve 1 in the porch of steam jet 2, can prevent that like this recirculated water from flowing backwards, and the water hammer when avoiding starting improves the security reliability of jet pump work greatly; Above the pump housing 3, be provided with blast pipe 4, so that gas is discharged; 5 of dome head structure is adopted at two ends at the pump housing 3, has both improved bearing capacity, has reduced as far as possible again because the kinetic energy loss that eddy current causes; Connection between jet pipe 2, blast pipe 4, mixing tube 6, water inlet pipe 8 and the pump housing 3 and mixing tube 6 and diffuser pipe 7 all adopts weld seam to connect, and meets the manufacturing technology condition of pressure vessel, processes also easy.

The advantage of this heat pump is simple in structure, cheap, be convenient to suitability for industrialized production, both can play the effect that adds hot water, again system is played pressurization, can provide enough pressure head to overcome the flow resistance of hot water system, security of operation, no steam and water bursting phenomenon, noise is low, energy-saving effect is obvious, is the desirable hot water heating heat-exchanger rig of skyscraper more than 30 meters.

Embodiment: pump housing diameter 200mm, pump housing length 400mm, the employing ordinary steel is made, the dome head structure is adopted at pump housing two ends, and entering jet pipe 2 porch at steam has check valve 1, connects between connection and mixing tube and the diffuser pipe between jet pipe, blast pipe, water inlet pipe, mixing tube and the pump housing and all adopts weld seam to connect, this injection pump lift can reach more than 30 meters, be used for the skyscraper hot water system, shockproof, noiselessness.

Claims

1, a kind of steam sprays heat pump, is made up of the pump housing, jet pipe, mixing tube, diffuser pipe, it is characterized in that: establish check valve 1 in the porch of jet pipe 2; On the pump housing 3, be provided with blast pipe 4; The two ends of the pump housing 3 are dome head 5.

2, heat pump according to claim 1 is characterized in that: between jet pipe 2, blast pipe 4, mixing tube 6, water inlet pipe 8 and the pump housing 3 and the connection between mixing tube 6 and the diffuser pipe 7 be weld seam and connect.