CN212319674U

CN212319674U - Integrated efficient energy-saving natural gas boiler

Info

Publication number: CN212319674U
Application number: CN202021926385.1U
Authority: CN
Inventors: 张明灿
Original assignee: Zhejiang Fun Fire Man Intelligent Technology Co ltd
Current assignee: Zhejiang Fun Fire Man Intelligent Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-01-08
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a high-efficient energy-conserving natural gas boiler of integrated form, including furnace body, setting at inside heat exchanger, steam cylinder, catch water, frequency conversion plunger pump, water storage tank and the boiler control system of furnace body, boiler control system control heat exchanger, steam cylinder, catch water, frequency conversion plunger pump work, the whole V type structure that is of furnace body, the heat exchanger is eight, and eight heat exchangers fall into two and incline the setting, and eight heat exchangers are independent control respectively, through improving boiler furnace body structure, improve the heat exchanger, improve the combustor, through installing condensing equipment additional simultaneously, improved boiler life for natural gas burns fully, and heat exchange efficiency is high-efficient, makes steam can obtain abundant utilization simultaneously, has improved the availability factor of steam, is favorable to the saving of the energy.

Description

Integrated efficient energy-saving natural gas boiler

Technical Field

The utility model relates to an energy-efficient natural gas boiler of integrated form.

Background

The existing traditional industrial natural gas boiler usually adopts a horizontal or vertical type as an integral structure form, a boiler body is made of conventional boiler steel, a heat exchange structure usually adopts carbon steel fire tube type arrangement combination, carbon steel is immersed in water for a long time and is easy to generate corrosion, the service life of the boiler is greatly influenced, combustion modes are direct-combustion single-return or two-return and three-return combustion modes, and some low-end boilers are not designed or provided with a smoke discharge condensing device for reducing cost, so that the smoke discharge temperature of smoke discharge ports of some boilers reaches more than 90 ℃, a large amount of heat energy is wasted, and the energy is not beneficial to energy conservation and environmental protection; meanwhile, the existing natural gas boiler is basically of a single-furnace body and single-heat exchanger structure, the steam supply and the gas heating quantity are difficult to control, the waste of gas and steam is easily caused, and meanwhile, if the steam supply is insufficient, the use of related equipment is influenced; meanwhile, the existing boiler can only meet the use requirements of 1-2 devices basically, the use amount of steam cannot be accurately controlled, and the switching operation of steam supply cannot be carried out.

Meanwhile, the steam demand of the existing equipment is not easy to be coincided with the steam supply of the boiler, so that the problems of insufficient steam supply or excessive steam supply are easily caused; therefore, there is a need to develop a new natural gas boiler to solve the problems encountered at present.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a through improving boiler furnace structure, improve the heat exchanger, improve the combustor, simultaneously through installing condensing equipment additional, boiler life has been improved, its burning is abundant, heat exchange efficiency is high-efficient, simultaneously through heat recovery, the heat energy of utilizing to discharge fume becomes cold water warm water and gets into the inside heat transfer that carries out of boiler, the loss and the waste of heat energy have both been reduced, simultaneously but also improved heat exchange speed, be favorable to the energy can be saved, simultaneously through the setting of a plurality of heat exchangers, make steam can obtain abundant utilization, the availability factor of steam has been improved, be favorable to the saving of the energy, the high-efficient energy-conserving natural gas boiler of integrated form that has practicality and use universality.

In order to solve the above problem, the utility model adopts the following technical scheme:

an integrated high-efficiency energy-saving natural gas boiler comprises a boiler body, heat exchangers, a steam cylinder, a steam-water separator, a variable-frequency plunger pump, a water storage tank and a boiler control system, wherein the heat exchangers, the steam cylinder, the steam-water separator and the variable-frequency plunger pump are arranged in the boiler body, the boiler control system controls the heat exchangers, the steam cylinder, the steam-water separator and the variable-frequency plunger pump to work, the whole boiler body is of a V-shaped structure, the number of the heat exchangers is eight, the eight heat exchangers are divided into two rows and are obliquely arranged, the eight heat exchangers are respectively and independently controlled, finned tubes are arranged in the heat exchangers and are spirally arranged, the upper ends of the finned tubes are water outlet ends, the lower ends of the finned tubes are water inlet ends, the water outlet ends of the finned tubes are connected with the steam cylinder, the steam-water separator is connected with the steam cylinder and the water storage, and one-way valves are arranged at the steam outlets.

Preferably, the combustor is installed to the inside lower extreme of heat exchanger, and the upper end of combustor is equipped with gathers the fire circle, gather the fire circle and set up the lower extreme at the finned tube and keep the certain distance with the finned tube, be equipped with between combustor and the fire circle of gathering and mix the chamber in advance, one side of mixing the chamber in advance is equipped with the air intake, be equipped with on the furnace body with eight fan mounting holes of heat exchanger assorted, install the fan in the fan mounting hole, the fan passes through pipeline and air intake connection, the fan is frequency conversion direct current fan.

According to the arrangement, air is conveyed to the premixing cavity through the variable-frequency direct-current fan, so that the mixing proportion of gas and air reaches the degree of complete combustion, and in addition, the variable-frequency fan can automatically adjust the rotating speed of an air door and a fan according to the difference of evaporation capacity and steam pressure, and convey a proper amount of air to premixing; meanwhile, flame sprayed by the burner can not directly act on the finned tubes in the heat exchanger, water in the finned tubes is heated into steam in a heat radiation mode, the flame can not damage the finned tubes in an accelerating mode in the heat radiation mode, the service life of the heat exchanger can be prolonged, carbon emission and nitrogen emission can be reduced through complete combustion, and pollution to the atmospheric environment is reduced to the minimum degree.

Preferably, the upper end of the inside of the heat exchanger is provided with a flue, the side wall of the flue is provided with a copper capillary tube, the copper capillary tube is of a spiral structure, the upper end of the copper capillary tube is a warm water outlet, and the lower end of the copper capillary tube is a cold water inlet.

This setting absorbs the waste heat of gas burning through this kind of condensing equipment of copper capillary, has improved the heat transfer speed and the heat exchange efficiency of cold water, reduces the gas to the higher temperature of atmospheric emission simultaneously.

Preferably, a three-way valve is installed on one side of the heat exchanger, the three-way valve is respectively connected with the water inlet end of the finned tube, the variable frequency plunger pump and the cold water inlet of the copper capillary tube, and the variable frequency plunger pump supplies water to the finned tube and the copper capillary tube.

The arrangement ensures the synchronism of water supply in the finned tube and the copper capillary tube and improves the utilization rate of heat.

Preferably, the upper end of the flue is a smoke outlet, and a smoke exhaust valve is arranged at the position, located at the smoke outlet, of the furnace body.

This setting, through the effect of smoke damper, the discharge of control cigarette makes during the outside object can not get into the heat exchanger simultaneously, improves security and life, also is convenient for simultaneously to be connected with outside fume extractor.

Preferably, a pipeline IV is arranged between the air outlet pipe of the steam-water separator and the steam outlet and is connected with the steam outlet through the pipeline IV, and the pipeline IV surrounds the steam cylinder and is of an arc structure.

This setting, through refining the pipeline connected mode, be convenient for realize the steam supply to many equipment, realize the control of steam output.

Preferably, the number of the variable-frequency plunger pumps is eight, and each variable-frequency plunger pump is matched with a corresponding heat exchanger to work.

This setting provides appropriate discharge and water pressure through the frequency conversion in order to satisfy the demand of evaporation capacity and steam pressure, is convenient for realize supplying water and the accurate control of steam input.

Preferably, one end of the furnace body is provided with an access hole.

This setting is convenient for overhaul, change the inside accessory of boiler and part through the access hole, guarantees the normal work of boiler, the security when guaranteeing to use.

The utility model has the advantages that: through improving boiler furnace body structure, improve the heat exchanger, improve the combustor, simultaneously through installing condensing equipment additional, boiler life has been improved, its burning is abundant, heat exchange efficiency is high-efficient, simultaneously through heat recovery, the heat energy of utilizing to discharge fume becomes the inside heat transfer that carries out of warm water entering boiler with cold water, the loss and the waste of heat energy have both been reduced, the heat exchange speed has been improved again simultaneously, be favorable to the energy can be saved, simultaneously through the setting of a plurality of heat exchangers, make steam can obtain abundant utilization, the availability factor of steam has been improved, be favorable to the saving of the energy, the universality that has practicality and use.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, but the scope of the present invention is not limited thereto.

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

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic view of the installation of the steam-water separator of the present invention;

fig. 5 is a schematic view of the installation of the heat exchanger of the present invention;

the boiler comprises a boiler body 1, a boiler body 2, a steam outlet 3, a smoke outlet 4, a fan mounting hole 5, a water replenishing port 6, an inspection port 7, a warm water inlet 7, a heat exchanger 8, a smoke window 9, a copper capillary tube 10, a warm water outlet 11, an air outlet tube 12, a cold water inlet 13, a steam cylinder 14, a finned tube 15, a steam-water separator 16, a three-way valve 17, a fan 18, a variable frequency plunger pump 19, a fire gathering ring 20, an air inlet 21, a premixing cavity 22, a combustor 23, a bracket 24, a water storage tank 25, a smoke exhaust valve 26, a pipeline I27, a pipeline II 28, a pipeline III 29 and a pipeline III.

Detailed Description

Referring to fig. 1 to 5, the integrated high-efficiency energy-saving natural gas boiler comprises a boiler body 1, a heat exchanger 8, a steam cylinder 14, steam-water separators 16, a variable-frequency plunger pump 19, a water storage tank 25 and a boiler control system which are arranged inside the boiler body 1, wherein the boiler control system controls the heat exchanger 8, the steam cylinder 14, the steam-water separators 16 and the variable-frequency plunger pump 19 to work, the boiler body 1 is integrally of a V-shaped structure, the eight heat exchangers 8 are eight, the eight heat exchangers are divided into two rows and are obliquely arranged, the eight heat exchangers are respectively and independently controlled, finned tubes 15 are arranged inside the heat exchanger 8, the finned tubes 15 are spirally arranged, the upper ends of the finned tubes 15 are water outlet ends, the lower ends of the finned tubes 15 are water inlet ends, the water outlet ends of the finned tubes 15 are connected with the steam cylinder 14, the steam-water separators 16 are connected with the steam cylinder, the steam-water separator 16 is provided with two air outlet pipes 12, each steam-water separator 16 is connected with four steam outlets 2 through each steam-water separated air outlet pipe 12, and one-way valves are arranged at the steam outlets 2.

Further, a combustor 23 is installed at the lower end inside the heat exchanger 8, a fire gathering ring 20 is arranged at the upper end of the combustor 23, the fire gathering ring 20 is arranged at the lower end of the finned tube 15 and keeps a certain distance from the finned tube 15, a pre-mixing cavity 22 is arranged between the combustor 23 and the fire gathering ring 20, an air inlet 21 is formed in one side of the pre-mixing cavity 22, eight fan mounting holes 4 matched with the heat exchanger 8 are formed in the furnace body 1, a fan 18 is installed in each fan mounting hole 4, the fan 18 is connected with the air inlet 21 through a pipeline, and the fan 18 is a variable-frequency direct-current fan.

Further, a flue 9 is arranged at the upper end inside the heat exchanger 8, a copper capillary tube 10 is arranged on the side wall of the flue 9, the copper capillary tube 10 is of a spiral structure, the upper end of the copper capillary tube 10 is a warm water outlet, and the lower end of the copper capillary tube 10 is a cold water inlet.

Further, a three-way valve 17 is installed on one side of the heat exchanger 8, the three-way valve 17 is respectively connected with the water inlet end of the finned tube 15, the variable frequency plunger pump 19 and the cold water inlet 13 of the copper capillary tube 10, and the variable frequency plunger pump 19 supplies water to the finned tube 15 and the copper capillary tube 10.

Further, the upper end of the flue 9 is a smoke outlet 3, and a smoke exhaust valve 26 is arranged at the smoke outlet 3 of the furnace body 1.

Further, a pipeline four is arranged between the gas outlet pipe 12 of the steam-water separator 16 and the steam outlet 2 and is connected through the pipeline four, and the pipeline four is arranged around the steam cylinder 14 and is of an arc structure.

Furthermore, the number of the variable-frequency plunger pumps 19 is eight, and each variable-frequency plunger pump is matched with a corresponding heat exchanger to work.

Furthermore, one end of the furnace body 1 is provided with an access hole 6.

Further, a warm water inlet 7 is arranged on the water storage tank 25, and the warm water inlet 7 is connected with the warm water outlet 11 through a pipeline.

Further, a first pipeline 27 is connected between the steam-water separators 16, and an electromagnetic valve is arranged on the first pipeline 27.

Further, a second pipeline 28 is arranged between the water outlet end of the finned tube 15 and the water storage tank 25 and is connected with the second pipeline 28.

Further, a third pipeline 29 is arranged between the steam-water separator 16 and the water storage tank 25 and is connected with the third pipeline 29.

Further, a support 24 is arranged inside the furnace body 1, and the heat exchanger 8, the steam cylinder 14 and the steam-water separator 16 are fixed with the furnace body 1 through the support 1.

Further, one end of the furnace body 1, which is positioned at the water storage tank 25, is provided with a water replenishing port 5.

The utility model discloses during the use, be connected steam outlet and outside steam input equipment through the pipeline, in operation, the water pressure in the frequency conversion plunger pump with the water storage tank is gone into in finned tube and copper capillary, subsequently, fan work, combustor work, flame is spout by gathering the fire circle, provide the heat with the mode of heat radiation, cooling water in the finned tube absorbs the heat, make aqueous gasification become vapor, water and vapor enter the steam cylinder by pipeline two, rethread pipeline three enter the catch water, carry out steam-water separation through the catch water, water directly gets into the water storage tank, vapor gets into the steam outlet by pipeline four, at last get into equipment and the space that need steam through the pipeline; meanwhile, the air carries residual heat generated by the fuel gas to move upwards, the cooling water in the copper capillary tube absorbs the heat in the air, the temperature of the discharged air is reduced, the water in the copper capillary tube directly enters the water storage tank after absorbing the heat, the water temperature is improved, the use amount and time of the fuel gas are saved, and the heating time of the cooling water and the steam generation efficiency are reduced.

The utility model discloses a motor, combustor, frequency conversion plunger pump, smoke damper, check valve, solenoid valve etc. all control through boiler control system to make eight heat exchangers and supplementary supporting device reach independent control's purpose, realize the synchronization or the independent work of a certain or a plurality of heat exchangers.

The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an energy-efficient natural gas boiler of integrated form, includes furnace body, sets up heat exchanger, steam cylinder, catch water, frequency conversion plunger pump, water storage tank and the boiler control system inside the furnace body, boiler control system control heat exchanger, steam cylinder, catch water, frequency conversion plunger pump work, its characterized in that: the steam-water separation furnace is characterized in that the whole furnace body is of a V-shaped structure, the eight heat exchangers are eight, the eight heat exchangers are divided into two rows and are obliquely arranged, the eight heat exchangers are respectively and independently controlled, finned tubes are spirally arranged inside the heat exchangers, the upper ends of the finned tubes are water outlet ends, the lower ends of the finned tubes are water inlet ends, the water outlet ends of the finned tubes are connected with a steam cylinder, a steam-water separator is connected with the steam cylinder and a water storage tank, eight steam outlets are formed in the upper end of the furnace body, an air outlet pipe is arranged on the steam-water separator, the number of the steam-water separator is two, the air outlet pipe of each steam-water.

2. The integrated high-efficiency energy-saving natural gas boiler as claimed in claim 1, wherein: the combustor is installed to the inside lower extreme of heat exchanger, and the upper end of combustor is equipped with gathers the fire circle, gather the fire circle setting at the lower extreme of finned tube and keep the certain distance with the finned tube, be equipped with between combustor and the gathering fire circle and mix the chamber in advance, one side in advance mixes the chamber is equipped with the air intake, be equipped with on the furnace body with eight fan mounting holes of heat exchanger assorted, install the fan in the fan mounting hole, the fan passes through pipeline and air intake connection, the fan is frequency conversion direct current fan.

3. The integrated high-efficiency energy-saving natural gas boiler as claimed in claim 1, wherein: the inside upper end of heat exchanger is equipped with the flue, is equipped with copper capillary on the lateral wall of flue, and copper capillary is helical structure, and the upper end of copper capillary is the warm water export, and the lower extreme of copper capillary is cold water import.

4. The integrated high-efficiency energy-saving natural gas boiler as claimed in claim 3, wherein: and a three-way valve is installed on one side of the heat exchanger and is respectively connected with the water inlet end of the finned tube, the variable frequency plunger pump and the cold water inlet of the copper capillary tube, and the variable frequency plunger pump supplies water to the finned tube and the copper capillary tube.

5. The integrated high-efficiency energy-saving natural gas boiler as claimed in claim 3, wherein: the upper end of the flue is a smoke outlet, and a smoke exhaust valve is arranged at the position, located at the smoke outlet, of the furnace body.

6. The integrated high-efficiency energy-saving natural gas boiler as claimed in claim 1, wherein: and a fourth pipeline is arranged between the air outlet pipe of the steam-water separator and the steam outlet and is connected with the steam outlet through the fourth pipeline, and the fourth pipeline surrounds the steam cylinder and is of an arc structure.

7. The integrated high-efficiency energy-saving natural gas boiler as claimed in claim 1, wherein: the number of the variable-frequency plunger pumps is eight, and each variable-frequency plunger pump is matched with a corresponding heat exchanger to work.

8. The integrated high-efficiency energy-saving natural gas boiler as claimed in claim 1, wherein: and one end of the furnace body is provided with an access hole.