CN2169835Y - Vertical vibrasion heat exchanger - Google Patents

Abstract

The utility model relates to a heat exchanger providing hot water for heating, air-conditioning and living. The inner of the heat exchanger is axially provided with a steam inlet pipe and a condensate water pipe between which multi-layer flat spiral pipes coiled up by single pipes are parallelly arranged. In operating time, the flat spiral pipes impacted by water generate induction oscillation, thus enhance heat transfer effect and prevent pipe walls scaling. Heated cold water flowing from the bottom up is fully heated; therefore, the heat exchanger which is an ideal product in low-pressure no-corrosion type heat exchangers has the advantages of compact structure, small size, small heat loss, little resistance, high heat efficiency, good heat stability, convenient maintenance, etc.

Description

Vertical vibrasion heat exchanger

The utility model is a kind of steam-water heat exchanging equipment, is applicable to heating, air-conditioning and the life water system with hot water.

Existing heating, air-conditioning and life are shell-and-tube exchangers with what adopt usually in the water system of hot water, insert in the cylinder shell of garden by multibarrel tube bank, according to the combining structure between tube sheet and housing, can be divided into fixed tube sheet type, U-shaped pipe, floating head type and cannula type etc.Normally steam flows in pipe and condenses, and water flows in housing and is heated.This class heat exchanger volume is huge, complex structure, heat loss are serious, especially the outer fouling of pipe easy-clear not.

There is the people to design a kind of " horizontal floating coiled pipe vapour--water heat exchanger " in order to overcome the problems referred to above, the patent No. 912213442, it is that steam in heat exchanger enters the even perforate of pipe upper edge short transverse, the multilayer that is arranged in parallel is by the rich horizontal floating coiled pipe of forming through different copper pipes of several bend pipes, horizontal floating coiled pipe one end is the solid and gas end, one end is a free end, the inboard tube bank of the horizontal floating coiled pipe on the stiff end links with steam inlet tube and condensate pipe respectively with outside tube bank, this heat exchanger is in operation and causes fluctuating of coil pipe, strengthened heat-transfer effect, realized automatic desludging simultaneously, but the floating coiled pipe of this heat exchanger is made up of many copper pipes, the limited length of every pipe, make that the amplitude of floating coiled pipe is limited, thereby heat transfer and descale effect are still not really desirable, and weldering system technology is also comparatively complicated.

The purpose of this utility model is to provide a kind of simple structure, firm and durable, minimizing maintenance, thermal efficiency height, the good high efficiency steam-water heat exchanger of dust removing effects.

Realize that key problem in technology of the present utility model is: after high-temperature steam enters the steam inlet pipe of heat exchanger, enter immediately in the coil pipe that multilayer is arranged in parallel, carry out condensation and heat exchange.Described coil pipe is a horizontal coil tube, its inner steam inlet pipe middle with being located at interchanger joins, the outer end links to each other with the condensate pipe of steam inlet pipe one side, two ends are fixedly connected, cooling water enters from the bottom of heat exchanger, flow out from the top, thus there is not the stagnant area of cooling water in the heat exchanger, so the drag losses of cooling water is little.Owing to adopted horizontal coil tube, so the heat exchanger volume is little, the gas flow passage resistance force of waterproof is little, and heat transfer efficiency is higher, adopts spiral tube structure simultaneously, has eliminated the thermal stress issues that the copper pipe internal cause temperature difference causes.

The course of work of this heat exchanger is: steam flows from bottom to top in steam inlet pipe and enters in each horizontal coil tube respectively equably, after condensation, enter condensate pipe, and outside the discharge heat exchanger, cold water then enters the heat exchanger bottom by water inlet pipe through bottom end cover, flow from bottom to top then, when current during through horizontal coil tube, cold water quickens to flow between helix tube, the vortex is formed at the top at horizontal coil tube, therefore helix tube has hydraulic pressure official post helix tube to move upward up and down, be subjected to simultaneously helix tube deadweight and elastic force effect again and pin down, make helix tube vibrate up and down, thereby strengthened the turbulent fluctuation of cold water, therefore strengthened the heat-transfer effect of gas and cold water, owing to the vibration repeatedly of helix tube, tube wall is less scaling, even fouling is also vibrated and come off voluntarily simultaneously.Like this, enter the cold water of heat exchanger from water inlet pipe, discharge from hot-water line after the multi-layer helical pipe fully heats, sewage is then discharged from blow-off pipe.

This heat is imitated the thermal efficiency of parallel operation greater than 95%, and the pressure of saturated vapor can reach 1MPa, also can operate as normal when 0.1MPa and guarantee good exerting oneself.

It is little, simple in structure that this heat exchanger has a volume, firm and durable, and thermal efficiency height, characteristics such as less scaling are the ideal products that low pressure does not have corrosion class heat exchanger.

Further specify below in conjunction with embodiment accompanying drawing of the present utility model.

Fig. 1 is a structure cutaway view of the present utility model;

Fig. 2 is the A-A direction structure schematic diagram of Fig. 1.

Referring to Fig. 1: cylindrical shell of the present utility model (10) top and the bottom connect upper cover (1) and low head (14) with flange respectively; Pressure tapping (2) is housed, thermometer joint (6), safety valve (3), hot-water line (4), bypass pipe (5) on the upper cover (1); Have blow-off pipe (11) on the low head (14), admission tube head (12), cooling water inlet (13); Be provided with vertical steam inlet pipe (9) in the middle of the cylindrical shell (10), vertical steam inlet pipe (9) rear portion is provided with vapour and coagulates water pipe (8); The even perforate of steam inlet pipe (9) upper edge short transverse, every hole connects a flat spin coil pipe (7), and flat spin coil pipe (7) end in addition is connected with condensate pipe (8).Except that Pressure gauge and thermometer with screw thread with its knot mouth is connected, all the other pipelines all link with flange and heat exchanger.

Referring to Fig. 2: an end of horizontal coil tube and steam inlet pipe (9) link, end links with condensate pipe (8) in addition, whole horizontal coil tube is a copper pipe, 4/5ths of its length adopt in the same way concentric discs around, reverse concentric arc coiling is adopted in all the other 1/5th long outer rings.So more help the helix tube vibration, conduct heat and descale effect to improve.

Claims (2)

1, a kind of vertical oscillation heat exchanger, the coil pipe that it is characterized in that heat exchanger are a horizontal coil tube (7), and its inner steam inlet pipe (9) middle with being located at interchanger links to each other, and the outer end links to each other with steam inlet pipe (9) one side condensate pipes (8).

2, vertical oscillation heat exchanger according to claim 1 is characterized in that horizontal coil tube (7) is a copper pipe, 4/5ths of its length adopt in the same way concentric discs around, reverse concentric arc coiling is adopted in all the other 1/5th long outer rings.

Images