CN2312438Y

CN2312438Y - Multi-core and sleeve type steam heating apparatus

Info

Publication number: CN2312438Y
Application number: CN 97235052
Authority: CN
Inventors: 何家驹
Original assignee: HUAZHI GOODS AND MATERIALS CO Ltd SHANGHAI
Current assignee: HUAZHI GOODS AND MATERIALS CO Ltd SHANGHAI
Priority date: 1997-07-17
Filing date: 1997-07-17
Publication date: 1999-03-31
Anticipated expiration: 2007-07-17

Abstract

The utility model relates to a multi-core and sleeve type steam heating apparatus which is suitable for big load fluctuation of hot water, the output can be changed within any design value, and people are not needed to regulate. The inner part of an outer sleeve pipe passing steam is provided with one, two or over two U-shaped water passing inner core pipes arranged suspendedly to compose a unit steam heating apparatus. Then a plurality of unit steam heating apparatus are connected in series and in parallel to compose a whole as required to become product lines, and the utility model has the advantages of high efficiency, energy saving, convenient maintenance, etc.

Description

Multicore bushing type steam heater

It is big that the utility model relates to the fluctuation of load of a kind of adaptation hot water, and output can change between the design load arbitrarily, and don't the multicore bushing type steam heater of palpus manual adjustment, belongs to heating equipment heat exchanger class.

As everyone knows, existing heat exchanger roughly can be divided into three major types, and a class is the positive displacement steam heater, its common style is that shell is the container that stores water, flowing steam in the interior pipe, this kind heat exchanger is not because the outer water of pipe flows, and the steam condensate current drainage is not smooth in the interior pipe, the condensate liquid thickness, heat exchange property is very poor, and the solid content and the incrusted deposit of hydrostatic is serious in the container, more can influence heat exchange, because housing diameter is big, the safety problem that hydraulic pressure produces must be considered simultaneously; Second class is fixed tube sheet type and U-shaped tubular type steam heater, and this class is used general, and its shell also is a bulk container, store steam, circulating water in the interior pipe because the outer condensate flow of tube bank is big, is restrained intensive, liquid film is thick, current drainage is not smooth, and in-pipe flow speed is little, so heat-exchange performance is relatively poor, because housing diameter is big, the vapour pressure safety problem is also very outstanding simultaneously.The flow velocity of water is not high in the pipe, solid content and incrusted deposit are also more serious, behind scaling outside the steam pipe, influence heat exchange, the 3rd class is water one a water jacket tube heater, this be inside and outside laminar flow all be water, be not to use Steam Heating, and the interlayer pipe is that single bending forms, the welding of every section two, thermal stress is big, and scaling easy-clear not.

The purpose of this utility model is a kind of novel multicore bushing type steam heater of design, and it is big to reach heat-exchange capacity, and the security performance height is maintained heat exchanger easily.

In order to achieve the above object, the utility model is achieved like this: adopt the outer tube that diameter is little, be provided with one in each outer tube, U type inner core tube more than two or two, outer tube is walked steam, inner core tube is leaked water, form a unit steam heater, according to quantity of steam and hot water amount, allow indexs such as differential water pressures, a plurality of modular heaters then, its outer tube and inner core tube are respectively with various connection in series-parallel form combinations, at the hot and cold water entrance end pickling valve and blowoff valve are housed respectively,, steam trap are housed at the steam (vapor) outlet end so that regularly clean copper pipe inside, can connect with the recirculation interface, so that utilize.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model cellular construction schematic diagram;

Fig. 2 connects schematic side view for the utility model unit combination,

With reference to the accompanying drawings 1, this reality is novel by outer tube 1, inner core tube 2, air inlet connecting tube 3, the connecting tube 4 of giving vent to anger, carriage 5, water inlet collection case 6 and water outlet collection case 7 etc. are formed a modular heater, outer tube 1 is the vapor space, constitute by seamless steel pipe, wall curvature is big, be difficult for producing the slight crack corrosion, outer tube 1 is equipped with steam inlet connecting tube 3, the connecting tube 4 of giving vent to anger, being convenient to each outer tube connection in series-parallel connects, and both ends of the surface one end of outer tube 1 is with same material welded closure, other end outer wall is equipped with flange 8, inner core tube 2 is a U type copper tube, there is slipper bracket 5 to support near the U type elbow, openend passes ring flange 9, and with high phosphorus copper with their weldering knots together, two external parts collect case 6 with the hot water entrance respectively, 7 connect, flange 8 is used bolted on connection with ring flange 9, constitute a heating unit,, make heating unit with different length according to the hot water amount and the water temperature of customer requirements, several unit carry out the connection in series-parallel combination, constitute the body of product, Fig. 2 is a unit combination attachment side view, and cold water is from cooling water inlet 11, enter heating unit 15 lower inlet collection casees 6 by connection pipe 12, heat the back from 7 outputs of top outlet collection case through every U type inner core tube 2, and pass through the lower inlet collection case 6 of the next heating unit of hot water header 13 inputs, at last by hot water outlet 14 outputs; Steam is from 16 inputs of steam inlet pipe, enter heating unit by air inlet connecting tube 3, during the heating unit series connection, by vapour communicating pipe 17 give vent to anger connecting tube 4 and the next heating unit air inlet connecting tube 3 of preceding heating unit being linked together, become condensate water at last, by steam trap 18, by 19 outputs of condensate water delivery outlet pipe and recovery.

The utility model embodiment, outer tube 1 is an air space, constitute by φ 315 * 8mm seamless steel pipe, more than the withstand voltage 40Kg/cm, each sleeve pipe all has steam to import and export short tube, and inner core tube 2 is a U type copper tube, and caliber is φ 45 * 5mm, withstand voltage is more than the 15Kg/cm, and copper pipe and ring flange 9 are tied by the high phosphorus brazing.So single detachable dress of U type pipe, overhaul very easy, inner core copper pipe 2 external parts link with hot water entrance's header respectively, in actual use, outer tube 1 is that air space follows boiler-steam dome to be connected as a single entity in fact, and when having cold water to flow through in the copper pipe, steam just condenses, when water does not flow, do not consume vapour, cold water is heated to form 70～80 ℃ of hot water from the input of bottom header via every U type copper pipe, exports from the top header, heating process is only finished in 10 seconds, the hot water temperature is continual and steady, and no ponding storage in the equipment is confessed water and do not had cold water and derive in earlier stage at the beginning of any time, need not discharge cold water in a large number, save the water source.

The utlity model has energy-efficient, water saving, joint vapour and solidifying water reclaim advantages of higher, because core Water speed is high in the pipe, deposit-free or incrustation scale, and it is also convenient to clean.

Claims

1. the adaptation hot water fluctuation of load is big, output can change within the design load arbitrarily, multicore bushing type steam heater that must manual adjustment again, it is characterized in that in the outer tube of a logical steam, being provided with one, the water flowing inner core tube of the unsettled arrangement of U-shaped more than two or two, form a unit steam heater, be combined into an integral body by a plurality of modular heater connection in series-parallel as required then

2. multicore bushing type steam heater according to claim 1 is characterized in that being equipped with on the outer tube 1 air inlet connecting tube 3 and outgoing gas connection tube 4, and other end outer wall is equipped with flange 8 to biend one end with same material sealing,

3. multicore bushing type steam heater according to claim 1 is characterized in that inner core tube is a U type bend pipe, and its openend passes ring flange 9, and welds them together with high phosphorus copper, is provided with carriage 5 supports of slip near U type elbow,

4. multicore bushing type steam heater according to claim 1 is characterized in that inner core tube 2 places in the outer tube 1, and flange 8 and ring flange 9 are used bolted on connection, and two external parts of inner core tube collect case 6,7 with the hot water entrance respectively and link,

5. multicore bushing type steam heater according to claim 1 is characterized in that outer tube is made of seamless steel pipe and inner core tube is a copper tube.