CN215446895U

CN215446895U - Full premix condensing boiler

Info

Publication number: CN215446895U
Application number: CN202122058317.9U
Authority: CN
Inventors: 陈亚平
Original assignee: Tianjin Leading Technology Co ltd
Current assignee: Tianjin Leading Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-01-07
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a full-premixing condensing boiler, which relates to the technical field of combustion boilers, and particularly relates to a full-premixing condensing boiler. This full premix condensing boiler sets up level sensor through the bottom at the heat transfer water cavity, utilizes level sensor to detect the water level, and when the water level was lower, level sensor gave the PLC controller with water level signal transmission, and cold water is carried to the inside in heat transfer water cavity by PLC controller control water pump again, can avoid the inside in heat transfer water cavity to lack the condition that causes dry combustion method, is favorable to improving the life in heat transfer water cavity.

Description

Full premix condensing boiler

Technical Field

The utility model relates to the technical field of combustion boilers, in particular to a full-premixing condensing boiler.

Background

With the development of the gas boiler technology, a novel boiler called a full-premixing condensing gas boiler is developed, the combustion mode of the full-premixing condensing gas boiler is changed, and the gas and the air can be uniformly stirred in a combustion chamber in a stable proportion due to the appearance of the full-premixing technology, so that the air-fuel ratio can be flexibly controlled according to the combustion characteristics of the gas, the gas can be fully combusted, and the maximum energy efficiency ratio can be reached; and simultaneously, the emission reduction of the boiler is further realized. The full premix burner is different from a common burner, combustion holes are distributed in a columnar burner instead of jet flames, fine blue flames are distributed in the combustion holes, the heat transfer mode is mainly that convection heat transfer is changed into main heat transfer, and radiation heat transfer is adopted, so that uneven heating caused by smoke flowing is avoided. And the condensation is carried out, and due to the change of the material of the boiler, the novel condensation boiler has stronger corrosion resistance, and can reduce the temperature of the flue gas to be very low until condensate water is generated.

In-process of using full premix condensation gas boiler to boil water, full premix condensation gas boiler's combustion chamber generally is located the top of condensation chamber, when filtering inside water level lower, the condition of disappearance can appear in the heat exchange tube of combustion chamber department, lead to the condition of dry combustion to appear in the boiler, cause the damage of boiler easily, and simultaneously, when the high temperature of boiler burning, can produce a large amount of steam, make the inside atmospheric pressure of boiler really big easily, influence the safety of boiler, we provide a full premix condensation boiler for this reason.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a full-premixing condensing boiler, which solves the problems in the background technology.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a full premix condensing boiler, includes the casing, the inside fixed mounting of casing has the combustion chamber, the bottom fixedly connected with condensation chamber of combustion chamber, the outside fixed mounting of casing has the heat transfer water cavity, the left bottom fixed mounting in heat transfer water cavity has level sensor, the top fixed mounting in heat transfer water cavity has temperature sensor, the top fixed mounting of casing has the PLC controller, the top fixed mounting of PLC controller has the alarm lamp, the right side fixedly connected with flue gas pipe of combustion chamber bottom, the top fixedly connected with tail gas processing apparatus of flue gas pipe.

Optionally, the bottom of the condensation chamber is fixedly connected with a condensate pipe, the left side of the heat exchange water cavity is fixedly connected with a cold water pipe, and the middle of the cold water pipe is fixedly provided with a water delivery pump.

Optionally, the heat exchange water cavity is coated outside the combustion chamber and the condensation chamber, a hot water pipe is fixedly connected to the top of the heat exchange water cavity, and the bottom of the hot water pipe extends to the bottom of the shell.

Optionally, the left upper portion fixedly connected with side flow tube of heat transfer water cavity, the bottom fixedly connected with storage water tank of side flow tube, the bottom fixedly connected with back flow of storage water tank, the right-hand member and the left lower part intercommunication in heat transfer water cavity of back flow, the solenoid valve is all installed to the outside of side flow tube and back flow.

Optionally, the bottom fixedly connected with gas pipe of casing, the top fixedly connected with fan of gas pipe, the left side of fan communicates with the inside of combustion chamber.

Optionally, a particle filter screen is fixedly mounted inside the tail gas treatment device, an SCR catalyst layer is fixedly mounted at the top of the particle filter screen, and an activated carbon filter screen is fixedly connected to the top of the SCR catalyst layer.

The utility model provides a full-premixing condensing boiler which has the following beneficial effects:

1. this full premix condensing boiler, bottom through at the heat transfer water cavity sets up level sensor, utilize level sensor to detect the water level, when the water level is lower, level sensor gives the PLC controller with water level signal transmission, again by PLC controller control water delivery pump to the inside transport cold water in heat transfer water cavity, can avoid the inside in heat transfer water cavity to lack the condition that causes dry combustion method, be favorable to improving the life in heat transfer water cavity, inside through at the heat transfer water cavity sets up temperature sensor, utilize temperature sensor to detect the inside temperature in heat transfer water cavity, when the inside temperature in heat transfer water cavity is higher, utilize temperature sensor to give signal transmission to the PLC controller, send the police dispatch newspaper by PLC controller control alarm lamp again, the convenience is reminded operating personnel, reduce dangerous emergence.

2. This full premix condensing boiler, through setting up the storage water tank, when the temperature of heat transfer water intracavity portion is too high, open the solenoid valve on the side flow pipe, make the hot water of heat transfer water intracavity portion flow into in the storage water tank, reinject cold water to the inside in heat transfer water chamber again, can be quick cool down heat transfer water chamber, avoid taking place danger, through setting up tail gas processing apparatus, utilize the inside particle filter screen of tail gas processing apparatus to filter the particulate matter in the tail gas, later catalyze by the nitrogen oxide in the SCR catalyst layer to the tail gas again, make it turn into carbon dioxide and oxygen, adsorb the filtration by the active carbon filter screen to tail gas at last again, can avoid the pollution of tail gas to the air.

Drawings

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

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

FIG. 3 is a schematic structural diagram of the tail gas treatment device of the present invention.

In the figure: 1. a housing; 2. a combustion chamber; 3. a condensing chamber; 4. a condensate pipe; 5. a heat exchange water cavity; 6. a cold water pipe; 7. a water delivery pump; 8. a liquid level sensor; 9. a hot water pipe; 10. a temperature sensor; 11. a PLC controller; 12. an alarm lamp; 13. a lateral flow tube; 14. a water storage tank; 15. a return pipe; 16. an electromagnetic valve; 17. a gas pipe; 18. a fan; 19. a flue gas pipe; 20. a tail gas treatment device; 21. a particle filter screen; 22. an SCR catalyst layer; 23. an active carbon filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 2, the present invention provides a technical solution: a full-premixing condensing boiler comprises a shell 1, a combustion chamber 2 is fixedly arranged inside the shell 1, a condensing chamber 3 is fixedly connected to the bottom of the combustion chamber 2, a heat exchange water cavity 5 is fixedly arranged outside the shell 1, a condensing water pipe 4 is fixedly connected to the bottom of the condensing chamber 3, a cold water pipe 6 is fixedly connected to the left side of the heat exchange water cavity 5, a water delivery pump 7 is fixedly arranged in the middle of the cold water pipe 6, a liquid level sensor 8 is fixedly arranged at the bottom of the left side of the heat exchange water cavity 5, the liquid level sensor 8 is arranged at the bottom of the heat exchange water cavity 5, the liquid level sensor 8 is utilized to detect the water level, when the water level is lower, level sensor 8 gives PLC controller 11 with water level signal transmission, is carried cold water by PLC controller 11 control water delivery pump 7 to the inside of heat transfer water cavity 5 again, can avoid the inside of heat transfer water cavity 5 to lack the condition that causes dry combustion method, is favorable to improving the life of heat transfer water cavity 5.

Referring to fig. 1 to 2, a heat exchange water chamber 5 is covered outside a combustion chamber 2 and a condensation chamber 3, a hot water pipe 9 is fixedly connected to the top of the heat exchange water chamber 5, the bottom of the hot water pipe 9 extends to the bottom of a shell 1, a temperature sensor 10 is fixedly installed at the top of the heat exchange water chamber 5, a temperature sensor 10 is arranged inside the heat exchange water chamber 5, the temperature inside the heat exchange water chamber 5 is detected by the temperature sensor 10, when the temperature inside the heat exchange water chamber 5 is high, a signal is transmitted to a PLC controller 11 by the temperature sensor 10, an alarm lamp 12 is controlled by the PLC controller 11 to give an alarm, so that an operator can be reminded conveniently, danger is reduced, the PLC controller 11 is fixedly installed at the top of the shell 1, the alarm lamp 12 is fixedly installed at the top of the PLC controller 11, a lateral flow pipe 13 is fixedly connected to the upper portion of the left side of the heat exchange water chamber 5, bottom fixedly connected with storage water tank 14 of lateral flow pipe 13, through setting up storage water tank 14, when the inside temperature of heat transfer water cavity 5 is too high, open solenoid valve 16 on the lateral flow pipe 13, make the inside hot water of heat transfer water cavity 5 flow into storage water tank 14, pour into cold water into again to the inside of heat transfer water cavity 5, can be quick cool down heat transfer water cavity 5, avoid taking place danger, storage water tank 14's bottom fixedly connected with back flow 15, the right-hand member of back flow 15 and the left lower part intercommunication in heat transfer water cavity 5, solenoid valve 16 is all installed to the outside of lateral flow pipe 13 and back flow 15.

Referring to fig. 2 to 3, a gas pipe 17 is fixedly connected to the bottom of the housing 1, a fan 18 is fixedly connected to the top of the gas pipe 17, the left side of the fan 18 is communicated with the inside of the combustion chamber 2, the gas is conveyed to the inside of the combustion chamber 2 through the gas pipe 17, so that the gas is combusted in the inside of the combustion chamber 2, a flue gas pipe 19 is fixedly connected to the right side of the bottom of the combustion chamber 2, a tail gas treatment device 20 is fixedly connected to the top of the flue gas pipe 19, a particle filter screen 21 is fixedly installed in the tail gas treatment device 20, the particulate matter in the tail gas is filtered through the particle filter screen 21 in the tail gas treatment device 20, so that the particulate matter in the tail gas can be removed conveniently, an SCR catalyst layer 22 is fixedly installed at the top of the particle filter screen 21, nitrogen oxide in the tail gas is catalyzed through the SCR catalyst layer 22 to be converted into carbon dioxide and oxygen, an activated carbon filter screen 23 is fixedly connected to the top of the SCR catalyst layer 22, the tail gas is adsorbed and filtered through the activated carbon filter screen 23, so that the pollution of the tail gas to the air can be avoided.

In conclusion, when the fully premixed condensing boiler is used, cold water is injected into the heat exchange water cavity 5 through the cold water pipe 6, then gas is injected into the combustion chamber 2 through the gas pipe 17 for combustion, the cold water in the heat exchange water cavity 5 is heated, the liquid level in the heat exchange water cavity 5 is detected through the liquid level sensor 8, the situation that the liquid level in the heat exchange water cavity 5 is too low is avoided, then the temperature in the heat exchange water cavity 5 is detected through the temperature sensor 10, the well-burned hot water flows out of the hot water pipe 9, when the water temperature is too high, the electromagnetic valve 16 on the lateral flow pipe 13 is opened, the hot water flows into the water storage tank 14, the cold water is timely injected into the heat exchange water cavity 5, and the situation that the temperature of the heat exchange water cavity 5 is too high is avoided.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A full premix condensing boiler, comprising a housing (1), characterized in that: the utility model discloses a heat exchanger, including casing (1), the inside fixed mounting of casing (1) has combustion chamber (2), the bottom fixedly connected with condensation chamber (3) of combustion chamber (2), the outside fixed mounting of casing (1) has heat transfer water cavity (5), the left bottom fixed mounting of heat transfer water cavity (5) has level sensor (8), the top fixed mounting of heat transfer water cavity (5) has temperature sensor (10), the top fixed mounting of casing (1) has PLC controller (11), the top fixed mounting of PLC controller (11) has alarm lamp (12), the right side fixedly connected with flue pipe (19) of combustion chamber (2) bottom, the top fixedly connected with tail gas treatment device (20) of flue pipe (19).

2. A fully premixed condensing boiler according to claim 1, characterized in that: the bottom fixedly connected with condensate pipe (4) of condensation chamber (3), the left side fixedly connected with cold water pipe (6) of heat transfer water chamber (5), the middle part fixed mounting of cold water pipe (6) has water delivery pump (7).

3. A fully premixed condensing boiler according to claim 1, characterized in that: the heat exchange water cavity (5) is coated outside the combustion chamber (2) and the condensation chamber (3), the top of the heat exchange water cavity (5) is fixedly connected with a hot water pipe (9), and the bottom of the hot water pipe (9) extends to the bottom of the shell (1).

4. A fully premixed condensing boiler according to claim 1, characterized in that: the heat exchange water chamber is characterized in that a lateral flow pipe (13) is fixedly connected to the left upper portion of the heat exchange water chamber (5), a water storage tank (14) is fixedly connected to the bottom of the lateral flow pipe (13), a return pipe (15) is fixedly connected to the bottom of the water storage tank (14), the right end of the return pipe (15) is communicated with the left lower portion of the heat exchange water chamber (5), and electromagnetic valves (16) are mounted outside the lateral flow pipe (13) and the return pipe (15).

5. A fully premixed condensing boiler according to claim 1, characterized in that: the bottom fixedly connected with gas pipe (17) of casing (1), the top fixedly connected with fan (18) of gas pipe (17), the left side of fan (18) and the inside intercommunication of combustion chamber (2).

6. A fully premixed condensing boiler according to claim 1, characterized in that: the inside fixed mounting of tail gas processing apparatus (20) has granule filter screen (21), the top fixed mounting of granule filter screen (21) has SCR catalyst layer (22), the top fixedly connected with active carbon filter screen (23) of SCR catalyst layer (22).