CN2262219Y - Leak-proof multipurpose oil combustion gas burning pressure-free boiler - Google Patents

Abstract

The utility model relates to an oil combusting gas burning boiler without pressure. Multiple groups of mutually independent tubular heat exchangers are arranged in a shell of the boiler. The water inlet ends of the tubular heat exchangers and the water outlet ends of the tubular heat exchangers, which are used for heating cold water from the outside, are arranged outside the boiler body. At least one group is connected with a hot water heating cycle system driven by a water pump. The group of the heat exchangers is not communicated with the boiler. As a consequence, the utility model prevents the water in heating pipes from flowing back to the shell of the boiler. The water with high purity in the shell of the boiler can be prevented from deposition. The utility model is also provided with a heat pipe type boiled water tank. The boiler thoroughly avoids the leak phenomenon of boilers without pressure and is safe and reliable to use. The utility model can simultaneously provide the water for heating, the water for a bathroom, the boiled water and a lithium bromide refrigerating heat source.

Description

The anti-multipurpose fuel-firing gas-firing pressure-less boiler of metalling run out

The utility model relates to the fuel-firing gas-firing pressure-less boiler, particularly a kind of anti-multipurpose pressure-less boiler of metalling run out.The part that boils water boiler afterheat adopts heat-pipe heat exchanger.

In the general pressure-less boiler heating operation, the water of whole system will reflux and cause boiler " to metal run out " when water pump stops.In order to solve " metalling run out " problem, need set up resistance control valve, float mechanism and float amplifier etc., these mechanism's general designation backwater controllers.Their setting can solve " metalling run out " problem theoretically, but in the actual motion because malfunctioning, the ball float of control is too big and a difficult problem such as mechanism's complex process can't thoroughly solve, the phenomenon of metalling run out still often takes place, and has influenced the promotion and application of pressure-less boiler.And set up backwater controller and need to strengthen pump lift, the pressure loss and energy consumption are increased, the building that is not suitable for more than five layers adopts.No matter be the pressure-bearing type oil burning boiler at present, still do not have the pressure type boiler and all be with fuel and directly heat water in the drum, output steam or heating hot water.Used water can not be handled through strict, thereby fouling in the drum, oxidation are serious, and influence is conducted heat and the thermal efficiency.And existing normal-pressure boiler can not be exported the hot water of boiling water and several different temperatures simultaneously according to user's needs, and purposes is single, can't satisfy various different needs.

The purpose of this utility model is the above-mentioned difficulties that will overcome prior art, and a kind of multipurpose pressure-less boiler of metalling run out of can preventing is provided, and makes the use of pressure-less boiler safer reliable, reduces energy consumption, can be applicable to the skyscraper more than five layers.The thermal source of hot water, boiling water and lithium bromide air-conditioning system can be provided simultaneously.And to make non-scaling in the drum.

Solution of the present utility model comprises combustor, front smoke box, boiler barrel, burner hearth, smoke pipe group, chimney and back smoke box etc., it is characterized in that being provided with in the boiler barrel the separate pipe heat exchanger of many groups, their water inlet end and water side all are in the body of heater outside, are used to heat the extraneous cold water that feeds; The hot-water heating circulatory system that wherein has at least a group of access to drive by water pump, this group heat exchanger is not connected with boiler, thereby prevents in the current twice-cooked stir-frying tube in the steam heating pipe; Be filled with high-purity water at boiler drum, can prevent fouling.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the anti-multi-functional pressure-less boiler of metalling run out.

As shown in the figure, this boiler comprises major parts such as combustor 1, front smoke box 2, boiler barrel 3, burner hearth 5, smoke pipe group 7, chimney 11 and back smoke box 12.In boiler barrel 3, be filled with the water 6 of certain water level, preferably treated high-purity water or distilled water, they mainly play a part to conduct heat as heating working medium, do not carry out outer loop, thereby consumption are less, also can not form incrustation scale in boiler.The fuel of this boiler is oil or gas, comprises coal gas, natural gas and oil liquefied gas etc.When combustor 1 work, a heat part of being given birth to is absorbed by the drum around the burner hearth 5, remainder is along with after flame flow to stove along burner hearth, flow to front smoke box 2 through return pipe group 16 again, smoke box 12 after smoke pipe group 7 in drum flow to then, most heats are passed behind water, after chimney 11 enters atmosphere.The steam 8 that produces riddles the drum upper space.

Be provided with the safe mouth of pipe 9 at boiler barrel 3 tops, this mouth of pipe inserts in the water seal tube by bend pipe, and the water seal tube is communicated with atmosphere.The structure ordinary people of water seal tube understands, and does not draw among the figure.Pressure in so not only can the balance boiler equal outside atmospheric pressure, plays the safeguard protection effect, and can air-isolation, avoids oxygen to enter, and plays the effect of corroding of preventing.The drum top also is provided with air bleeding valve 10 etc.

As figure, key of the present utility model is the heat exchanger that has adopted the novel arrangement structure, be set up in parallel multi units tube formula heat exchanger 4 at boiler barrel 3 tops, it is separate that each organizes heat exchanger, according to heat exchanger tube length difference, the hot water of different temperatures can be provided respectively, thereby reach heating, have a bath and multiple use such as lithium bromide refrigerating.Here the pipe heat exchanger 4 of Cai Yonging can be helix tube type or coiled heat exchanger.They can assemble and dismantle by joint, can also carry out serial or parallel connection in case of necessity, to satisfy various different needs.During work, by cold water, its cold wall contacts with the saturated vapor of outside in the pipe heat exchanger, and steam discharges gasification latent heat, condenses into liquid, and its heat is passed to the cold water in the heat exchanger, and heat exchanger is with regard to exportable hot water.The liquid that condenses drips again under the gravity effect and melts down the body bottom.Because of whole process occurs in the sealing system, adopt pure water as working medium again, drum is with regard to non flouling behaviour, thereby can not influence boiler heat-transfer.Here pure water plays a part to conduct heat only as heating working medium, do not carry out outer loop, thereby consumption is less.

The heat exchanger 4 of respectively organizing among the figure just passes drum, and is not connected with drum.When a group of access heating system wherein, independent mutually with boiler by the closed cycle system that water pump drives, even shutdown, the water in the system can not flow in the drum yet, thereby has thoroughly avoided the phenomenon of metalling run out.

In order to make full use of the waste heat of back smoke box, this boiler is at the back smoke box 12 other boiled water tanks 14 that are provided with, and the temperature end of heat pipe heat 13 is in the smoke box 12 of back, and low-temperature end is in the boiled water tank 14.Vent valve 15 open in usual is housed on the boiled water tank.Heat pipe and boiled water tank assembly can be separate accessories, have to install and detachability, and this boiler can be selected and adjusting flexibly according to user's needs.When not needing boiling water, the hot water in the boiled water tank can be delivered in the heat exchanger as the user, thus the inflow temperature and the thermal efficiency of raising boiler.

The utility model is compared with existing pressure-less boiler, has following advantage:

1, thoroughly avoided the phenomenon of metalling run out of pressure-less boiler, safe and reliable, solved one People thirst for the technical barrier that solves for a long time.

2, the thermal source of heating water, bathroom water and lithium bromide refrigerating can be provided simultaneously. By Heat exchange of heat pipe can also provide boiling water, makes it to become the Multipurpose non-pressure boiler.

3, can not produce incrustation scale, not influence boiler heat-transfer.Thereby furnace temperature needn't be too high, helps prolonged boiler service life.Simultaneously water treatment facilities be needn't adopt, investment and operating cost reduced.

4, move under sealing state, oxide etch is little, and body of heater and burner hearth wall thickness can design more thinnerly, save steel, and boiler life prolongs greatly.

5, heat exchanger is a packet type, and a certain group only breaks down and to need to repair and change this group to get final product, easy to maintenance.

6, body of heater communicates with atmosphere through water seal, even heat exchanger breaks, water wherein with pressure flows in the drum and also can overflow from safety device, does not cause drum to produce and breaks, and is safe in utilization.

Claims (4)

1, the anti-multipurpose fuel-firing gas-firing pressure-less boiler of metalling run out, comprise combustor (1), front smoke box (2), boiler barrel (3), burner hearth (5), smoke pipe group (7), chimney (11) and back smoke box (12), it is characterized in that being provided with in the boiler barrel (3) the separate pipe heat exchanger (4) of many groups, their water inlet end and water side all are in the body of heater outside, are used to heat the extraneous cold water that feeds; The hot-water heating circulatory system that wherein has at least a group of access to drive by water pump, this group heat exchanger is not connected with boiler, thereby prevents in the current twice-cooked stir-frying tube in the steam heating pipe; In boiler barrel (3), be filled with high-purity water (6), can prevent fouling.

2, boiler as claimed in claim 1 is characterized in that boiler barrel (3) top is provided with the safe mouth of pipe (9), and this mouth of pipe inserts in the water seal tube by bend pipe, and the water seal tube is communicated with atmosphere.

3,, it is characterized in that pipe heat exchanger (4) is helix tube type or coiled heat exchanger as right 1 or 2 described boilers.

4, boiler as claimed in claim 1 or 2 is characterized in that the other boiled water tank (14) that is provided with of back smoke box (12), and the temperature end of heat pipe heat (13) is in the back smoke box (12), and low-temperature end is in the boiled water tank (14).