CN112524586A

CN112524586A - Full-premixing plate type steam generator

Info

Publication number: CN112524586A
Application number: CN202011475172.6A
Authority: CN
Inventors: 李希德
Original assignee: Fucheng Hedexing Energy Equipment Technology Co ltd
Current assignee: Fucheng Hedexing Energy Equipment Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-03-19

Abstract

A full-premixing plate type steam generator relates to the technical field of steam generators and comprises a main shell, a burner, a vaporization section, a temperature rising section and a preheating section. The top of the main casing body be equipped with the gas inlet, the bottom of the main casing body is equipped with the exhanst gas outlet, main casing body inside from the top down is equipped with combustor, vaporization section, section of heating, preheating section in proper order, vaporization section upper end and steam outlet intercommunication, main water inlet is located the bottom of the main casing body. The combustor include the fire and arrange and ignition, the fire arrange including upper fire arrange and lower floor fire arrange, the upper fire arrange with lower floor fire arrange the through-hole of evenly distributed different shapes and size, ignition is located the below that the fire was arranged. The vaporization section, the temperature raising section and the preheating section adopt a tubular structure, and the periphery of the tube wall is provided with heat absorbing blades. The invention has the advantages of uniform flame distribution, consistent strength, full combustion, uniform heating of the heated body, high thermal efficiency, difficult generation of carbon deposition in the heated body and high safety.

Description

Full-premixing plate type steam generator

Technical Field

The invention relates to the technical field of steam generators, in particular to a full premix plate type steam generator.

Background

The steam generator is a device for heating water to generate steam by utilizing heat generated by fuel combustion, and is widely applied to the food industry, the biological equipment industry, the chemical industry and the like. The traditional atmospheric combustion module furnace or full-premix combustion module furnace adopts or upwards or radially burns burning flame, so that the problem of uneven section temperature in the process of cooling and condensing flue gas cannot be avoided, carbon deposition is easily generated in a heated body, the heat transfer efficiency is influenced, coke cleaning has to be performed regularly, and great troubles are caused. And the flame is distributed unevenly, the intensity is inconsistent, burn insufficiently, form the concentrated area of flame easily, make the heated body heated unevenly, the thermal efficiency is lower.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a full premix plate type steam generator which has the advantages of uniform flame distribution, uniform strength, sufficient combustion, uniform heating of a heated body, high thermal efficiency, difficult generation of carbon deposition in the heated body and high safety.

In order to solve the problems, the invention adopts the following technical scheme: a full-premix plate steam generator is characterized by comprising a main shell, a burner, a vaporization section, a temperature raising section and a preheating section,

the top of the main shell body is provided with a fuel gas inlet, the bottom of the main shell body is provided with a flue gas outlet, the inside of the main shell body is sequentially provided with a burner, a vaporization section, a temperature rising section and a preheating section from top to bottom, the upper end of the vaporization section is communicated with a steam outlet, a water inlet of the vaporization section is communicated with a water outlet of the temperature rising section through a pipeline, a water inlet of the temperature rising section is communicated with a water outlet of the preheating section, a water inlet of the preheating section is a main water inlet, and the main water inlet is positioned at,

the burner comprises a fire grate and an ignition device, the fire grate comprises an upper fire grate and a lower fire grate, through holes with different shapes and sizes are uniformly distributed on the upper fire grate and the lower fire grate, the ignition device is positioned below the fire grate,

the vaporization section, the temperature raising section and the preheating section adopt a tubular structure, and the periphery of the tube wall is provided with heat absorbing blades.

Further: the pipelines of the vaporization section, the temperature raising section and the preheating section are horizontally arranged, the end parts of the pipelines all extend out of the outer side of the main shell, and adjacent pipelines are communicated through a connecting bent pipe positioned on the outer side of the main shell.

The invention has the beneficial effects that:

1. the flame distribution is uniform, the intensity is consistent, the combustion is sufficient, the heated body is uniformly heated, the heat efficiency is high, carbon deposition is not easily generated in the heated body, and the safety is high.

2. The fire arrange including upper fire arrange with lower floor's fire arrange, the upper fire arrange with lower floor's fire arrange the through-hole of evenly distributed different shapes and size, after gas that mixes in advance gets into from the gas import, at first break up through the dispersion that upper fire was arranged, then pass the through-hole that lower floor's fire was arranged, because the shape and the size of the through-hole that upper fire was arranged and lower floor's fire were arranged are different, consequently, the gas that mixes in advance is broken up by the dispersion once more, consequently, can guarantee that flame distribution is even, the burning intensity is unanimous, it is more abundant to burn, avoid forming flame concentration district, make the heated body thermally equivalent, the thermal efficiency is higher.

3. The main shell is internally provided with a burner, a vaporization section, a temperature raising section and a preheating section from top to bottom in sequence, premixed gas is sprayed from a gas inlet at the top of the main shell and is ignited to impact and burn downwards under the action of upper-layer air pressure, flue gas absorbs heat from top to bottom in a pipeline passing through the vaporization section, the temperature raising section and the preheating section in sequence, the temperature of the flue gas is gradually reduced, the temperature of the full section is uniform and is reduced in sequence in the cooling and condensing process of the flue gas, and combusted condensed water is collected downwards in a downstream manner, so that the vaporization section, the temperature raising section and the preheating section have a scouring effect, the temperature is continuously reduced, and heat is recovered to. More importantly, the flue gas flows downstream without dead angles, not only carbon deposition is not easy to form, but also the ash removal effect is achieved, and the advantages of no carbon deposition and no need of coke removal are achieved.

4. The end parts of the pipelines all extend out of the outer side of the main shell, and the adjacent pipelines are communicated through an outer side connecting bent pipe positioned on the main shell. The pipeline in the whole heated area is designed to have no welding point, so that the problem that the welding point is easy to leak due to repeated heating is solved, the safety is improved, the heat preservation effect is ensured, and the heat efficiency is improved.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the fire grate of the present invention;

FIG. 4 is a schematic structural view of the fire grate of the present invention;

FIG. 5 is a schematic structural view of the fire grate of the present invention;

in the figure: 1 fire row, 2 upper fire row, 3 lower fire row, 4 vaporization section, 5 temperature rising section, 6 preheating section, 7 preheating section water outlet, 8 preheating section water inlet, 9 temperature rising section water inlet, 10 temperature rising section water outlet, 11 steam outlet, 12 connecting bent pipe, 13 vaporization section water inlet, 14 main shell, 15 gas inlet and 16 flue gas outlet.

Detailed Description

As shown in fig. 1, 2, 3, 4 and 5, a full premix plate steam generator includes a main housing 14, a burner, a vaporization section 4, a warming-up section 5 and a preheating section 6.

The top of main casing body 14 be equipped with gas inlet 15, the bottom of main casing body 14 is equipped with exhanst gas outlet 16, main casing body 14 is inside from the top down is equipped with the combustor in proper order, vaporization section 4, intensification section 5, preheating section 6, vaporization section 4 upper end and steam outlet 11 intercommunication, vaporization section water inlet 13 passes through the pipeline and intensification section delivery port 10 intercommunication, intensification section water inlet 9 and preheating section delivery port 7 intercommunication, preheating section water inlet 8 is main water inlet, main water inlet is located main casing body 14's bottom.

The combustor include fire row 1 and ignition, fire row 1 include that upper fire arranges 2 and lower floor fire row 3, the through-hole of evenly distributing different shapes and size on upper fire row 2 and lower floor fire row 3, ignition is located the below that 1 was arranged to the fire.

The vaporization section 4, the temperature rise section 5 and the preheating section 6 adopt a tubular structure, and heat absorption blades are arranged on the periphery of the tube wall.

The pipelines of the vaporization section 4, the temperature rise section 5 and the preheating section 6 are horizontally arranged, the end parts of the pipelines all extend out of the outer side of the main shell 14, and the adjacent pipelines are communicated through a connecting elbow 12 positioned on the outer side of the main shell 14.

The present invention is not limited to the above-described embodiments.

Claims

1. A full-premix plate steam generator is characterized by comprising a main shell, a burner, a vaporization section, a temperature raising section and a preheating section,

2. The steam generator of claim 1, wherein the tubes of the vaporizing section, the warming section and the preheating section are horizontally disposed, the ends of the tubes extend out of the main housing, and adjacent tubes are connected to each other by a connecting elbow located outside the main housing.