CN214147836U

CN214147836U - Efficient energy-saving pot body structure and horizontal fuel oil and gas steam boiler

Info

Publication number: CN214147836U
Application number: CN202023158298.9U
Authority: CN
Inventors: 李宗营; 张德龙
Original assignee: Taikang Yinyu Boiler Manufacturing Co ltd
Current assignee: Taikang Yinyu Boiler Manufacturing Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-07
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a high-efficiency energy-saving pot body structure and horizontal fuel gas steam boiler, the heat preservation stove outer covering level sets up and transversely installs on the base, pot body and furnace body equal level install in the heat preservation stove outer covering, and the pot body is located the top of furnace body, the combustor is installed in the fire door department of furnace body, be provided with the heat transfer flame path structure and the water tank wind channel structure of many return strokes on the pot body, the water inlet end and the pot body intercommunication of heat transfer flame path structure, the play fire end of heat transfer flame path structure communicates with the fire inlet end of water tank wind channel structure through the baffling chamber, increase heat transfer flame path structure between the heat that furnace body and combustor provided, be used for hindering the furnace body to the thermal absorption, reduce heat to external transmission and exchange, the scattering and disappearing of very big reduction heat, improve heat utilization efficiency, water tank wind channel structure is with the direct transmission of the waste heat in, and a small part of heat exchange is converted and utilized for other media, so that the heat loss is greatly reduced, and the heat utilization efficiency is improved.

Description

Efficient energy-saving pot body structure and horizontal fuel oil and gas steam boiler

Technical Field

The utility model relates to a fuel gas steam boiler technical field, concretely relates to energy-efficient type pot body structure and horizontal fuel gas steam boiler.

Background

The gas-fuel steam boiler refers to a gas-fuel steam boiler or a fuel-fuel steam boiler or a steam boiler which can be used for burning fuel and burning fuel at the same time, and is distinguished according to the energy form adopted. The horizontal gas-fuel oil steam boiler adopts an offset furnace pipe wet-back type structure, high-temperature smoke gas sequentially washes a second return smoke pipe and a third return smoke pipe, and then the high-temperature smoke gas is discharged into the atmosphere from a rear smoke chamber through a chimney. The boiler is provided with movable front and rear smoke box covers, so that the boiler is convenient to overhaul. The industrial burner with excellent boiler performance adopts advanced technologies such as automatic combustion proportion regulation, automatic water supply regulation, program start and stop, full-automatic operation and the like, and has automatic protection functions such as high and low water level alarm, extremely low water level, ultrahigh steam pressure, flameout and the like.

In the prior art, the main defects and the core technology of the fuel-gas steam boiler are basically focused on the aspect of heat conversion efficiency, the improvement of the heat conversion efficiency leads the fuel-gas steam boiler to be more efficient and energy-saving, and the main problem that people need to overcome is that a burner of the conventional fuel-gas steam boiler sprays heat into a boiler, however, the absorption and conversion utilization effects of the boiler body on the heat are not ideal, one part of the heat can be absorbed and transmitted to the outside by the boiler body, and the other part of the heat can be taken away by smoke gas, so that great waste is caused, the general means for improving the heat utilization rate is to arrange a multi-return flame path in the boiler body, the heat conversion efficiency is improved through the contact surface and time of the boiler body and the heat, however, the heat in the boiler body is lost, the means for improving the heat efficiency conversion rate is lacked, the existing smoke waste heat recovery is to transfer the heat in the smoke gas to another medium for conversion and storage, therefore, the application provides a heat absorption and conversion device which can directly absorb and convert part of heat in the furnace body and the pot body, thereby reducing the heat absorption of the furnace body and the heat loss of flue gas, and improving the heat utilization and conversion efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an energy-efficient furnace body structure and horizontal fuel gas steam boiler to heat has a part to be absorbed by the furnace body and transmits the external world and directly scatters and disappears along with the flue gas in solving fuel gas steam boiler, reduces heat conversion efficiency, produces the very big extravagant problem.

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

the utility model provides an energy-efficient type pot body structure and horizontal fuel gas steam boiler, includes combustor, base, the pot body, furnace body and heat preservation stove outer covering, heat preservation stove outer covering level sets up and transversely installs on the base, the pot body with the equal horizontal installation of furnace body is in the heat preservation stove outer covering, just the pot body is located the top of furnace body, the combustor is installed the fire department of furnace body, be provided with the heat transfer flame path structure and the water tank wind channel structure of many return strokes on the pot body, the end of intaking of heat transfer flame path structure with pot body intercommunication, the play fire end of heat transfer flame path structure through the baffling chamber with the end intercommunication of advancing fire of water tank wind channel structure.

The further technical scheme is as follows: the heat exchange flame path structure comprises a first heat storage pipe, a second heat storage pipe, a first heat exchange assembly, a second heat exchange assembly and a third heat exchange assembly, wherein the first heat storage pipe and the second heat storage pipe are located below the pot body and are arranged in parallel with the pot body, the first heat storage pipe and the second heat storage pipe are distributed triangularly, a plurality of the first heat exchange assembly is communicated with the first heat storage pipe and the pot body, the second heat exchange assembly is communicated with the first heat storage pipe and the second heat storage pipe, and the third heat exchange assembly is communicated with the second heat storage pipe and the pot body.

The further technical scheme is as follows: the first heat exchange assembly is composed of a plurality of parallel tube banks, and the adjacent tube banks are provided with flame paths for flame circulation.

The further technical scheme is as follows: and a communicating pipe is arranged between the first heat storage pipe and the second heat storage pipe, and a plurality of furnace wall cooling pipes communicated with the pot body are arranged on the communicating pipe.

The further technical scheme is as follows: the water tank air duct structure comprises a heat exchanger, a heat-preservation smoke tube and a plurality of fire tubes, wherein the fire tubes are arranged in the boiler body in a penetrating mode, and the heat exchanger is communicated with the outer ends of the fire tubes through the heat-preservation smoke tube.

The further technical scheme is as follows: the heat exchanger comprises a heat exchange water tank, heat exchange plates and baffle plates, wherein the air inlet end of the heat exchange water tank is communicated with the outer end of the fire tube, the heat exchange plates are uniformly arranged in the heat exchange water tank in a penetrating mode and are communicated with the heat exchange water tank, the baffle plates are arranged at two ends of the heat exchange plates, and a baffle flue is formed between the heat exchange plates and the baffle plates.

The further technical scheme is as follows: a plurality of annular depressions are provided on the fire tube.

Compared with the prior art, the utility model discloses can reach one of following beneficial effect at least:

1. the utility model provides a high-efficient energy-saving pot body structure and horizontal fuel gas steam boiler increases heat transfer flame path structure between the heat that furnace body and combustor provided, on the one hand is used for hindering the furnace body to the thermal absorption, reduces heat to external transmission and exchange, on the other hand, can further absorb the conversion to the heat of furnace body transmission, then in the water of transmission in the pot body, very big reduction heat scatters and disappears, improve heat utilization efficiency, heat transfer flame path structure also can convert the absorption heat and store, the heat that exists also can play the heat preservation effect to the furnace body; the water tank air channel structure directly transmits most of the waste heat in the flue gas to the pot body to heat the water body, and a small part of heat exchange is converted and utilized for other media.

2. First heat exchange assemblies, second heat exchange assemblies and third heat exchange assemblies in the heat transfer flame path structure group together and form the combustion chamber, and the heat is directly absorbed by each heat exchange assemblies, greatly reduces the heat to the transmission of furnace body, and heat transfer flame path structure itself can be formed with the flame path structure of many return strokes moreover, has improved heat and each heat exchange assemblies' contact time and area, improves thermal conversion efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the high-efficiency energy-saving furnace body structure and the horizontal fuel oil-gas steam boiler of the utility model.

Fig. 2 is a schematic structural view of the furnace body and the pot body in fig. 1 of the present invention.

Fig. 3 is a schematic structural view of the heat exchange flue structure in fig. 1 according to the present invention.

FIG. 4 is a schematic view of the fire tube of FIG. 1 according to the present invention.

Reference numerals: 1. a burner; 2. a base; 3. a pan body; 4. a furnace body; 5. a thermal insulation material; 6. a heat preservation furnace shell; 7. a heat exchange flue structure; 71. a first heat storage pipe; 72. a second heat storage pipe; 73. a first heat exchange assembly; 731. a tube bank; 74. a second heat exchange assembly; 75. a third heat exchange assembly; 8. a fire tube; 81. an annular recess; 11. a communicating pipe; 12. furnace wall cooling tubes; 13. a water tank air duct structure; 131. a heat exchanger; 132. a heat preservation smoke pipe; 1311. a heat exchange water tank; 1312. a heat exchange plate; 1313. and (7) a baffle plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

embodiment 1 please refer to fig. 1 and an embodiment shown, an energy-efficient pot body structure and a horizontal fuel gas steam boiler comprise a burner 1, a base 2, a pot body 3, a furnace body 4 and a heat preservation furnace shell 6, wherein the heat preservation furnace shell 6 is horizontally arranged and transversely installed on the base 2, the pot body 3 and the furnace body 4 are both horizontally installed in the heat preservation furnace shell 6, the pot body 3 is located above the furnace body 4, the burner 1 is installed at a fire hole of the furnace body 4, a multi-return-stroke heat exchange fire path structure 7 and a water tank air channel structure 13 are arranged on the pot body 3, a water inlet end of the heat exchange fire path structure 7 is communicated with the pot body 3, and a fire outlet end of the heat exchange fire path structure 7 is communicated with a fire inlet end of the water tank air channel structure 13 through a baffling cavity 14.

The high-efficiency energy-saving pot body structure and the horizontal fuel gas steam boiler are characterized in that a heat-insulating furnace shell 6 is horizontally arranged and transversely arranged on a base 2, a pot body 3 and a furnace body 4 are horizontally arranged in the heat-insulating furnace shell 6, the pot body 3 is positioned above the furnace body 4, a burner 1 is arranged at a fire hole of the furnace body 4, the burner 1 can be of a fuel type or a fuel type, the burner 1 sprays fire into the furnace body 4, the pot body 3 is heated and boiled to generate steam, an external control device is used for controlling the work of the fuel gas steam boiler, a multi-return-stroke heat exchange fire path structure 7 and a water tank air channel structure 13 are arranged on the pot body 3, a water inlet end of the heat exchange fire path structure 7 is communicated with the pot body 3 and used for water circulation, the water heated in the furnace body 4 is lifted to the pot body 3, a fire outlet end of the heat exchange fire path structure 7 is communicated with a fire inlet end of the water tank structure 13 through a baffling cavity 14, on the one hand is used for hindering furnace body 4 to thermal absorption, reduce heat to external transmission and exchange, on the other hand, can be with the further absorption conversion of heat to the transmission of furnace body 4, then transmit in the water of pot body 3, the water in the heat transfer flame path structure 7 absorbs the heat and converts the storage, the heat of existence also can play the heat preservation effect to furnace body 4, water tank air duct structure 13 transmits the waste heat majority in the flue gas for pot body 3, few partial heat exchanges get up for other medium conversion utilization, this pot body structure is in the aspect of the thermal conversion link and the flue gas waste heat utilization of pot body 3 and furnace body 4, very big thermal scattering and disappearing of reduction, improve heat utilization efficiency.

Example 2:

on the basis of the above embodiment 1, in embodiment 2, referring to fig. 2 and fig. 3, the heat exchange flue structure 7 includes a first heat storage pipe 71, a second heat storage pipe 72, a first heat exchange assembly 73, a second heat exchange assembly 74, and a third heat exchange assembly 75, the first heat storage pipe 71 and the second heat storage pipe 72 are located below the pot body 3 and are arranged in parallel with the pot body 3, the first heat storage pipe 71, the second heat storage pipe 72, and the pot body 3 are distributed in a triangular shape, the plurality of first heat exchange assemblies 73 communicate the first heat storage pipe 71 with the pot body 3, the second heat exchange assembly 74 communicates the first heat storage pipe 71 and the second heat storage pipe 72, and the third heat exchange assembly 75 communicates the second heat storage pipe 72 with the pot body 3.

Preferably, the first heat exchange assembly 73 is composed of a plurality of tube rows 731 which are parallel to each other, and the adjacent tube rows 731 are provided with flame paths for flame circulation.

Preferably, a communicating pipe 11 is arranged between the first heat storage pipe 71 and the second heat storage pipe 72, and a plurality of furnace wall cooling pipes 12 communicating with the pot body 3 are arranged on the communicating pipe 11.

The first heat storage pipe 71, the second heat storage pipe 72 and the pot body 3 are arranged in parallel and distributed in a triangular shape, the first heat exchange assembly 73, the second heat exchange assembly 74 and the third heat exchange assembly 75 enable the first heat storage pipe 71, the second heat storage pipe 72 and the pot body 3 to be communicated with each other, the first heat exchange assembly 73 is composed of a plurality of parallel pipe rows 731, adjacent pipe rows 731 are provided with flame paths for flame circulation, and a multi-return flame path structure is formed, heat provided by the burner 1 enters the first heat exchange assembly 73, the second heat exchange assembly 74 and the third heat exchange assembly 75 and then is blocked by a rear wall of the furnace body 4, the baffled heat enters the first heat exchange assembly 73 composed of the plurality of pipe rows 731 through a flame inlet, then enters the flame path 8 through the flame paths between the pipe rows 731, the heat exchange flame path structure 7 can form a multi-return flame path structure, contact time and area of the heat and each heat exchange assembly are improved, the heat conversion efficiency is improved, the heat exchange flame path structure 7 can also convert and store the absorbed heat, and the stored heat can also play a role in heat preservation of the furnace body 4, so that the heat utilization rate is further improved.

And heat insulation materials 5 are filled between the outer sides of the first heat exchange assembly 73, the second heat exchange assembly 74 and the third heat exchange assembly 75 and the inner wall of the furnace body 4, so that the heat transfer to the furnace body 4 and the outside can be reduced, and the heat loss is reduced.

Example 3:

on the basis of the above embodiment, embodiment 3 shows an embodiment, the water tank air duct structure 13 includes a heat exchanger 131, a heat preservation smoke pipe 132 and a plurality of fire pipes 8, the fire pipes 8 are installed in the pot body 3 in a penetrating manner, and the heat exchanger 131 is communicated with the outer ends of the fire pipes 8 through the heat preservation smoke pipe 132.

Preferably, the heat exchanger 131 comprises a heat exchange water tank 1311, heat exchange plates 1312 and a baffle 1313, an air inlet end of the heat exchange water tank 1311 is communicated with an outer end of the fire tube 8, the heat exchange plates 1312 are uniformly and penetratingly arranged in the heat exchange water tank 1311, the heat exchange plates 1312 are communicated with the heat exchange water tank 1311, the baffle 1313 are arranged at two ends of the heat exchange plates 1312, and a baffling flue is formed between the heat exchange plates 1312 and the baffle 1313.

The water tank air duct structure 13 is communicated with the heat exchange flame path structure 7, is the last flame return, basically only remains flue gas, most of the residual heat in the flue gas is converted into water in the pot body 3 through the fire tube 8, and a small part of the residual heat in the flue gas can be absorbed by the heat exchanger 131 and transmitted to other media for absorption.

A baffling flue is formed between the heat exchange plates 1312 and the baffle plate 1313 in the heat exchanger 131 to form a multi-return flue, so that the waste heat of the flue gas is greatly utilized.

Example 4:

on the basis of the above embodiment, embodiment 4 shows an embodiment in which a plurality of annular recesses 81 are provided in the fire tube 8.

The fire tube 8 is provided with a plurality of annular recesses 81, and the plurality of annular recesses 81 can increase the contact time and area of the fire tube 8 with flue gas, thereby improving the heat conversion efficiency.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides an energy-efficient pot body structure and horizontal fuel gas steam boiler, includes combustor (1), base (2), the pot body (3), furnace body (4) and heat preservation stove outer covering (6), heat preservation stove outer covering (6) level setting and transversely install on base (2), the pot body (3) with the equal horizontal installation of furnace body (4) is in heat preservation stove outer covering (6), just the pot body (3) are located the top of furnace body (4), install combustor (1) the fire door department of furnace body (4), its characterized in that: the pot body (3) is provided with a heat exchange flame path structure (7) with multiple return strokes and a water tank air channel structure (13), the water inlet end of the heat exchange flame path structure (7) is communicated with the pot body (3), and the fire outlet end of the heat exchange flame path structure (7) is communicated with the fire inlet end of the water tank air channel structure (13) through a baffling cavity (14).

2. The efficient energy-saving pot body structure and the horizontal fuel oil and gas steam boiler according to claim 1, wherein: the heat exchange flame path structure (7) comprises a first heat storage pipe (71), a second heat storage pipe (72), a first heat exchange assembly (73), a second heat exchange assembly (74) and a third heat exchange assembly (75), wherein the first heat storage pipe (71) and the second heat storage pipe (72) are positioned below the pot body (3) and are arranged in parallel with the pot body (3), the first heat storage pipe (71), the second heat storage pipe (72) and the pot body (3) are distributed in a triangular mode, the first heat exchange assembly (73) is communicated with the first heat storage pipe (71) and the pot body (3), the second heat exchange assembly (74) is communicated with the first heat storage pipe (71) and the second heat storage pipe (72), and the third heat exchange assembly (75) is communicated with the second heat storage pipe (72) and the pot body (3).

3. The efficient energy-saving pot body structure and the horizontal fuel oil and gas steam boiler according to claim 2, wherein: the first heat exchange assembly (73) is composed of a plurality of mutually parallel tube rows (731), and the adjacent tube rows (731) are provided with flame paths for flame circulation.

4. The efficient energy-saving pot body structure and the horizontal fuel oil and gas steam boiler according to claim 2, wherein: a communicating pipe (11) is arranged between the first heat storage pipe (71) and the second heat storage pipe (72), and a plurality of furnace wall cooling pipes (12) communicated with the pot body (3) are arranged on the communicating pipe (11).

5. The efficient energy-saving pot body structure and the horizontal fuel oil and gas steam boiler according to claim 1, wherein: the water tank air duct structure (13) comprises a heat exchanger (131), a heat-preservation smoke tube (132) and a plurality of fire tubes (8), the fire tubes (8) are arranged in the pot body (3) in a penetrating mode, and the heat exchanger (131) is communicated with the outer ends of the fire tubes (8) through the heat-preservation smoke tube (132).

6. The efficient energy-saving pot body structure and the horizontal fuel oil and gas steam boiler according to claim 5, wherein: the heat exchanger (131) comprises a heat exchange water tank (1311), heat exchange plates (1312) and baffle plates (1313), the air inlet end of the heat exchange water tank (1311) is communicated with the outer end of the fire tube (8), the heat exchange plates (1312) are uniformly arranged in the heat exchange water tank (1311) in a penetrating mode, the heat exchange plates (1312) are communicated with the heat exchange water tank (1311), the baffle plates (1313) are arranged at two ends of the heat exchange plates (1312), and a baffling flue is formed between the heat exchange plates (1312) and the baffle plates (1313).

7. The efficient energy-saving pot body structure and the horizontal fuel oil and gas steam boiler according to claim 5, wherein: a plurality of annular recesses (81) are provided on the fire tube (8).