CN206786695U - A kind of Boiler Used Coldly coagulates energy-saving appliance - Google Patents

Abstract

The utility model provides a kind of Boiler Used Coldly and coagulates energy-saving appliance, can the unnecessary flue gas heat of recovered steam boiler, improve return water temperature, and heat exchange area is big, good effect of heat exchange.Specifically include into water supervisor, water outlet main pipe and multiple pipes row, one end and the water inlet supervisor's insertion of pipe row, as the water inlet of pipe row, the other end penetrates with water outlet main pipe, the delivery port as pipe row.The gas fired-boiler condensation energy-saving device is arranged at flue outlet, flue gas vertically blows to the pipe row in casing.When the heat-transfer area that flue gas passes through finned tube, as long as near wall temperature reaches dew-point temperature, Water vapor condensation is just had, the part latent heat of vaporization is discharged and passes to working medium in heating surface, substantial amounts of energy in smoke evacuation can be recycled, so as to reach the effect of energy-conserving and environment-protective.

Description

A kind of Boiler Used Coldly coagulates energy-saving appliance

Technical field

A kind of energy-saving appliance is the utility model is related to, more particularly to a kind of boiler energy-saving appliance, belongs to energy-conserving and emission-cutting technology neck Domain.

Background technology

Because the flue-gas temperature of general gas fired-boiler discharge is all higher, water vapour in flue gas still in superheat state, If directly discharging, the heat in flue gas can be wasted.If can the unnecessary flue gas heat of recovered steam boiler, can effectively reduce combustion gas Consumption, be advantageous to energy-saving and emission-reduction.

Current flue gas waste heat recovery technology is generally divided into two classes, and one kind is direct contact heat transfer type：Water directly passes through spray Mouth flows into heat smoke in a counter-current configuration, and air-flow cools down flue gas saturation by the evaporation endothermic of water.When there is sufficient amount of water When introducing flue gas, flue gas will be cooled to below its saturation temperature, less than the dew-point temperature of import flue gas.Finally, flue gas is with low Warm saturation state leaves system, and water then leaves system with heated state.Which is that flue gas directly contacts with water, although Without dust stratification, but while the contact area of flue gas and water is increased to improve heat exchange efficiency, the flow resistance of flue gas also phase It should increase, it is necessary to be equipped with blowing device to be improved gaseous fuel.Generally without ash after burning, but it is uncombusted to still suffer from part Carbon black and sour gas, therefore can be in certain acidity after water and flue gas directly contact and there is a little impurity to generate, make Can not be directly using, it is necessary to which increasing water processing establishment can just be used into water outlet quality decline.And pass through processing, the heat in water Amount vanishes, and has run counter to the original intention for reclaiming heat originally.Another kind of is indirect contact heat exchanger type：Liquid to be heated flows through cigarette Tube bank in gas air-flow, cooling smoke evacuation, heating working medium, does not occur directly to contact between flue gas and heated medium.For this The heat-exchanger rig of system is also commonly referred to as condensation energy-saving device, and layout and the structure of tube bank largely influence condensation energy-saving device Heat exchange efficiency.

Utility model content

In view of this, the utility model provides a kind of Boiler Used Coldly solidifying energy-saving appliance, being capable of the unnecessary flue gas of recovered steam boiler Heat, return water temperature is improved, reach the purpose for saving the energy, and heat exchange area is big, good effect of heat exchange.

Described Boiler Used Coldly, which coagulates energy-saving appliance, to be included：Water inlet supervisor, water outlet main pipe and two or more pipe row；The pipe is arranged Formed after being sequentially connected by the finned tube of more than two diameter parallels by bend pipe；One end of the pipe row is responsible for the water inlet Insertion, the other end penetrate with the water outlet main pipe；

Pipe row is arranged in parallel described in two or more, and two neighboring pipe row is staggered, and makes the fin of two neighboring pipe row Pipe mutually staggers.

As a kind of preferred embodiment of the present utility model, pipe row is vertically arranged described in two or more, the water inlet supervisor position Above water outlet main pipe.

As a kind of preferred embodiment of the present utility model, the pipeline in each pipe row positioned at bottom is light pipe.

As a kind of preferred embodiment of the present utility model, it is separately provided on the water inlet supervisor and water outlet main pipe The valve of working medium flow in regulation pipe row.

As a kind of preferred embodiment of the present utility model, it is provided with each pipe row with one end that water inlet supervisor is connected Valve.

Beneficial effect：

(1) energy-saving appliance can the unnecessary flue gas heat of recovered steam boiler, improve return water temperature, reach save the energy mesh , and heat exchange area is big, good effect of heat exchange.

(2) multiple independent pipe rows are set, when a pipe row is broken down, do not influence the use of whole energy-saving appliance；And Pipe row corresponding to need to only being replaced during maintenance.

(3) arrangement mode of comb is changed, is arranged using top-bottom cross, working medium alternating contractions and expansion between finned tube Flowed in bending channel, flow disturbance during than in-line arrangement in crucial corridor is violent.

(4) pipe row most descends row to use light pipe, is cleared up beneficial to dirt.

Brief description of the drawings

Fig. 1 is the side view of condensation energy-saving device of the present utility model；

Fig. 2 is the structural representation of pipe row.

Wherein：1- water inlets supervisor, 2- water outlet main pipes, 3- pipes row, 4- energy-saving appliances casing, 5- light pipes, 6- finned tubes

Embodiment

With reference to the accompanying drawings and examples, the utility model is described in detail.

The present embodiment provides a kind of gas fired-boiler condensation energy-saving device, and the energy-saving appliance being capable of the unnecessary flue gas of recovered steam boiler Heat, return water temperature is improved, and heat exchange area is big, good effect of heat exchange.

As shown in figure 1, the condensation energy-saving device includes：Water inlet supervisor 1, water outlet main pipe 2 and five pipe rows 3.

The structure of pipe row 3 is as shown in Fig. 2 pipe row 3 is after being sequentially connected by the finned tube 6 of four diameter parallels by bend pipe Formed.One end of pipe row 3 and the insertion of water inlet supervisor 1, as the water inlet of pipe row 3, the other end penetrates with water outlet main pipe 2, as The delivery port of pipe row 3.Pipe row 3 places vertically in energy-saving appliance casing 4, and five pipe rows 3 are arranged in parallel.Five pipe rows 3 use Staggered tubes structure, i.e., two neighboring pipe row about 3 are staggered, and the finned tube of two neighboring pipe row is mutually staggered, such as Fig. 1 institutes Show.Using this kind of structure, fluid working substance flows between finned tube in alternating contractions and the bending channel of expansion, is closing during than in-line arrangement The flow disturbance of key corridor is violent.

To ensure the smooth circulation of fin intraductal working medium, water inlet supervisor 1 is arranged on the top of water outlet main pipe 2, makes fluid working substance The circulation style under upper is used in finned tube.

In use, the gas fired-boiler condensation energy-saving device is arranged at flue outlet, flue gas vertically blows to the pipe in casing Row.When flue gas is by the heat-transfer area of finned tube, as long as near wall temperature reaches dew-point temperature, Water vapor condensation is just had, is discharged Go out the part latent heat of vaporization and pass to working medium in heating surface, substantial amounts of energy in smoke evacuation can be recycled, so as to reach The effect of energy-conserving and environment-protective.

For ease of the dirt in fluid working substance to flowing down, the finned tube that each pipe is arranged to bottom is changed to common light pipe 5. Valve is respectively arranged with water inlet supervisor and water outlet main pipe simultaneously, the flow for fluid working substance in energy-saving adjusting device.Each The water inlet of pipe row is also respectively arranged with valve, when some pipe, which is arranged, to break down, need to only close the valve of pipe row water inlet Door is repaired, and does not influence the use of the other pipe rows of energy-saving appliance.

To sum up, preferred embodiment of the present utility model is these are only, is not intended to limit protection of the present utility model Scope.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc., should be included in Within the scope of protection of the utility model.

Claims (5)

1. a kind of Boiler Used Coldly coagulates energy-saving appliance, it is characterised in that including：Water inlet supervisor, water outlet main pipe and two or more pipe row；Institute It is to be formed after being sequentially connected by the finned tube of more than two diameter parallels by bend pipe to state pipe row；One end of pipe row with it is described Water inlet supervisor's insertion, the other end penetrate with the water outlet main pipe；

Pipe row is arranged in parallel described in two or more, and two neighboring pipe row is staggered, and makes the finned tube phase of two neighboring pipe row Mutually stagger.

2. Boiler Used Coldly as claimed in claim 1 coagulates energy-saving appliance, it is characterised in that pipe row is vertically arranged described in two or more, The water inlet supervisor is above water outlet main pipe.

3. Boiler Used Coldly as claimed in claim 2 coagulates energy-saving appliance, it is characterised in that positioned at bottom in each pipe row Pipeline is light pipe.

4. Boiler Used Coldly as claimed in claim 1 or 2 coagulates energy-saving appliance, it is characterised in that in the water inlet supervisor and water outlet master The valve of working medium flow in regulation pipe row is separately provided on pipe.

5. Boiler Used Coldly as claimed in claim 1 or 2 coagulates energy-saving appliance, it is characterised in that is led in each pipe row with water inlet The connected one end of pipe is provided with valve.