Waste heat collection and utilization device for high-temperature waste gas of boiler

Abstract

The utility model relates to the technical field of waste heat collection, in particular to a waste heat collection and utilization device for high-temperature waste gas of a boiler, which comprises a shell, a cavity, a water storage cavity and a cavity are respectively arranged in the shell, one side of the shell is fixedly connected with a gas inlet pipe in a penetrating manner, and the gas inlet pipe is communicated with the cavity. The upper end of the shell is fixedly connected with a pipeline in a penetrating mode, and the other side of the shell is fixedly connected with an exhaust pipe in a penetrating mode. A plurality of through grooves are formed in the side walls of the heat exchange pipes, the through grooves are communicated with the interior of the cavity, the ends of the heat exchange pipes are communicated with the cavity, and filter cartridges are slidably connected to the interiors of the heat exchange pipes. Waste heat in high-temperature waste gas is recycled and used for heating water in the water storage cavity to generate steam, so that the overall energy utilization efficiency of the boiler system is remarkably improved, heat energy originally discharged into the atmosphere along with the waste gas is effectively utilized and converted into useful steam at present, and energy waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of waste heat collection technology, and in particular to a waste heat collection and utilization device for high-temperature exhaust gas from a boiler. Background Technology

[0002] Waste heat collection and utilization device for high-temperature exhaust gas from boilers refers to a device that uses a series of technical means and equipment to capture, convert and utilize the heat energy in the high-temperature exhaust gas emitted by boilers, so as to improve energy utilization efficiency and reduce energy consumption.

[0003] Existing waste heat collection and utilization devices fail to fully utilize the waste heat of high-temperature exhaust gases, resulting in the waste of some energy. Furthermore, the unrecovered waste heat requires additional fuel (such as natural gas, coal, or electricity) to compensate, increasing energy procurement costs. Utility Model Content

[0004] The purpose of this invention is to provide a waste heat collection and utilization device for high-temperature exhaust gas from boilers. This device improves the efficiency of high-temperature exhaust gas waste heat collection, thereby solving the problem of poor high-temperature exhaust gas waste heat collection efficiency in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waste heat collection and utilization device for high-temperature exhaust gas from a boiler includes a shell, inside which are respectively arranged a chamber, a water storage chamber, and a cavity. An air inlet pipe is fixedly connected through one side of the shell and communicates with the chamber. A pipe is fixedly connected through the upper end of the shell and communicates with the water storage chamber. An exhaust pipe is fixedly connected through the other side of the shell and communicates with the cavity. Multiple heat exchange tubes are fixedly disposed inside the shell. Multiple through grooves are provided on the sidewalls of the heat exchange tubes and communicate with the interior of the chambers. The ends of the heat exchange tubes communicate with the cavity. A filter cartridge is slidably connected inside the heat exchange tubes.

[0007] Preferably, an infusion tube is fixedly connected to the upper end of the housing, and a drain pipe is fixedly connected to the lower end of the housing. Both the infusion tube and the drain pipe are equipped with valves.

[0008] Preferably, an observation port is provided through the rear side of the housing, a transparent glass is fixedly connected inside the observation port, and a scale line is fixedly connected to the side wall of the transparent glass.

[0009] Preferably, a slot is provided through the lower end of the housing, and a blocking plate is fixedly connected inside the slot by bolts.

[0010] Preferably, the side wall of the housing is provided with a plurality of holes and grooves, and a circular plate is fixedly connected to the side wall of the filter cartridge, wherein the side wall of the circular plate is threadedly connected to the inner wall of the holes and grooves.

[0011] Preferably, a protrusion is fixedly connected to the side wall of the circular plate, and the protrusion is configured as T-shaped.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] 1. By recovering the waste heat from the high-temperature exhaust gas and using it to heat the water in the storage chamber to generate steam, the overall energy utilization efficiency of the boiler system is significantly improved. This allows the heat energy that would otherwise be discharged into the atmosphere with the exhaust gas to be effectively utilized and converted into useful steam, reducing energy waste.

[0014] 2. The design incorporates a detachable blocking plate and a threaded circular plate, making filter cartridge replacement simple and quick. During replacement, some impurities scraped off the filter cartridge surface fall through the slots to the outside of the chamber. This helps reduce impurity accumulation inside the chamber, preventing damage to the equipment or impact on exhaust gas purification efficiency. Attached Figure Description

[0015] Figure 1 This is a front view of the external structure of a waste heat collection and utilization device for high-temperature exhaust gas from a boiler, as proposed in this utility model.

[0016] Figure 2 This is a front sectional view of a waste heat collection and utilization device for high-temperature exhaust gas from a boiler, as proposed in this utility model.

[0017] Figure 3 This is a top cross-sectional view of a waste heat collection and utilization device for high-temperature exhaust gas from a boiler, as proposed in this utility model.

[0018] Figure 4 This is a side sectional view of the waste heat collection and utilization device for high-temperature exhaust gas from a boiler, as proposed in this utility model.

[0019] Figure 5 This is a bottom cross-sectional view of the waste heat collection and utilization device for high-temperature exhaust gas from a boiler, as proposed in this utility model.

[0020] In the diagram: 001, shell; 101, chamber; 102, water storage chamber; 103, cavity; 104, air inlet pipe; 105, pipe; 106, infusion pipe; 107, drain pipe; 108, exhaust pipe; 109, slot; 110, blocking plate; 111, perforation; 002, heat exchange pipe; 201, through slot; 202, filter cartridge; 203, circular plate; 204, protrusion. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A waste heat collection and utilization device for high-temperature boiler exhaust gas includes a shell 001. The shell 001 contains a chamber 101, a water storage chamber 102, and a cavity 103. An air inlet pipe 104 is fixedly connected to one side of the shell 001, communicating with the chamber 101. A pipe 105 is fixedly connected to the upper end of the shell 001, communicating with the water storage chamber 102. An exhaust pipe 108 is fixedly connected to the other side of the shell 001, communicating with the cavity 103. Multiple heat exchange tubes 002 are fixedly disposed inside the shell 001. Multiple through grooves 201 are provided on the sidewalls of the heat exchange tubes 002, communicating with the interior of the chamber 101. The ends of the heat exchange tubes 002 communicate with the cavity 103. A filter cartridge 202 is slidably connected inside the heat exchange tubes 002. The water storage chamber 102 stores water. The air inlet pipe 104 is connected to the boiler exhaust gas discharge port. The pipe is connected to the external steam-using equipment. The filter cartridge 202 is made of polytetrafluoroethylene. The middle section of the heat exchange tube 002 is located inside the water storage chamber 102. The high-temperature exhaust gas generated by the boiler flows into the chamber 101 through the exhaust pipe and the air inlet pipe 104. Then, the exhaust gas flows into the heat exchange tube 002 through multiple slots 201 on the side wall of the heat exchange tube 002. The exhaust gas is then purified by the filter cartridge 202. The high-temperature exhaust gas then heats the middle section of the heat exchange tube 002. The heated heat exchange tube 002 then heats the water in the water storage chamber 102. When the water is heated to a suitable temperature, the water generates steam. The steam flows into the external steam-using equipment through the pipe 105, thereby collecting and utilizing the waste heat of the high-temperature exhaust gas. After heat exchange, the exhaust gas is discharged from the end of the heat exchange tube 002 into the cavity 103. Then, the exhaust gas is discharged through the exhaust pipe 108.

[0023] An infusion tube 106 is fixedly connected to the upper end of the housing 001, and a drain pipe 107 is fixedly connected to the lower end of the housing 001. Both the infusion tube 106 and the drain pipe 107 are equipped with valves. The infusion tube 106 is connected to an external water supply pipe. When it is necessary to infuse fluid into the water storage chamber 102, the operator opens the valve inside the infusion tube 106, and then the water inside the external water supply pipe flows into the water storage chamber 102 through the infusion tube 106. When it is necessary to drain the water from the water storage chamber 102, the operator opens the valve inside the drain pipe 107, and then the water from the water storage chamber 102 is drained through the drain pipe 107.

[0024] An observation port is provided through the rear side of the shell 001. A transparent glass is fixedly connected inside the observation port, and a scale line is fixedly connected to the side wall of the transparent glass. The transparent glass is borosilicate glass. The operator can observe the liquid level of the water inside the water storage chamber 102 through the observation port.

[0025] A slot 109 is provided through the lower end of the housing 001. A blocking plate 110 is fixedly connected inside the slot 109 by bolts. The slot 109 communicates with the chamber 101. When it is necessary to clean the inside of the chamber 101, the operator removes the connecting bolts between the blocking plate 110 and the slot 109, and then takes the blocking plate 110 out of the slot 109. Then the inside of the chamber 101 is cleaned. A sealing gasket is provided between the side wall of the blocking plate 110 and the inner wall of the slot 109.

[0026] The side wall of the housing 001 is provided with multiple slots 111. A circular plate 203 is fixedly connected to the side wall of the filter cartridge 202. The side wall of the circular plate 203 is threadedly connected to the inner wall of the slots 111. When the filter cartridge 202 needs to be replaced after long-term use, the circular plate 203 rotates. Through the threaded engagement between the circular plate 203 and the slots 111, the circular plate 203 is turned out from the inside of the slots 111. At the same time, the circular plate 203 drives the filter cartridge 202 to rotate and slide, thereby removing the filter cartridge 202 from the inside of the end of the heat exchange tube 002. Then the filter cartridge 202 is replaced. A sealing ring is provided between the side wall of the circular plate 203 and the inner wall of the slots 111.

[0027] A protrusion 204 is fixedly connected to the side wall of the circular plate 203. The protrusion 204 is T-shaped. The operator can rotate the circular plate 203 by manually rotating the protrusion 204.

[0028] In this invention, the high-temperature exhaust gas generated by the boiler flows into the chamber 101 through the exhaust pipe and the inlet pipe 104. Then, the exhaust gas flows into the heat exchange pipe 002 through multiple slots 201 on the side wall of the heat exchange pipe 002. The exhaust gas is then purified by the filter cartridge 202. The purified high-temperature exhaust gas heats the middle section of the heat exchange pipe 002. The heated heat exchange pipe 002 transfers heat to the water in the water storage chamber 102. When the water is heated to a suitable temperature, the water generates steam. The steam flows into the external steam-using equipment through the pipe 105, thereby collecting and utilizing the waste heat of the high-temperature exhaust gas. After heat exchange, the exhaust gas is discharged into the cavity 103 from the end of the heat exchange pipe 002. Then, the exhaust gas is discharged through the exhaust pipe 108.

[0029] When the filter cartridge 202 needs to be replaced after long-term use, the operator removes the connecting bolts between the plug plate 110 and the slot 109, and then takes the plug plate 110 out of the slot 109. The operator manually rotates the protrusion 204 to make the circular plate 203 rotate. Through the threaded engagement between the circular plate 203 and the slot 111, the circular plate 203 is turned out of the slot 111. At the same time, the circular plate 203 drives the filter cartridge 202 to rotate and slide, thereby removing the filter cartridge 202 from the end of the heat exchange tube 002. Then the filter cartridge 202 is replaced. At the same time, some impurities scraped off the surface of the filter cartridge 202 fall into the outside of the chamber 101 through the slot 109. Then the operator cleans the remaining impurities inside the chamber 101.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waste heat collection and utilization device for high-temperature exhaust gas from a boiler, characterized in that, include The housing (001) has a chamber (101), a water storage chamber (102), and a cavity (103) respectively. An air inlet pipe (104) is fixedly connected to one side of the housing (001) and communicates with the chamber (101). A pipe (105) is fixedly connected to the upper end of the housing (001) and communicates with the water storage chamber (102). An exhaust pipe (108) is fixedly connected to the other side of the housing (001) and communicates with the cavity (103). Multiple heat exchange tubes (002) are fixedly disposed inside the housing (001). Multiple through grooves (201) are provided on the side wall of the heat exchange tubes (002). The through grooves (201) are connected to the interior of the chamber (101). The end of the heat exchange tubes (002) is connected to the cavity (103). A filter cartridge (202) is slidably connected inside the heat exchange tubes (002).

2. The waste heat collection and utilization device for high-temperature boiler exhaust gas according to claim 1, characterized in that, An infusion tube (106) is fixedly connected to the upper end of the housing (001), and a drain pipe (107) is fixedly connected to the lower end of the housing (001). Valves are provided inside both the infusion tube (106) and the drain pipe (107).

3. The waste heat collection and utilization device for high-temperature boiler exhaust gas according to claim 1, characterized in that, An observation port is provided through the rear side of the housing (001), and a transparent glass is fixedly connected inside the observation port. A scale line is fixedly connected to the side wall of the transparent glass.

4. The waste heat collection and utilization device for high-temperature boiler exhaust gas according to claim 1, characterized in that, The lower end of the housing (001) is provided with a slot (109), and a plug plate (110) is fixedly connected inside the slot (109) by bolts.

5. The waste heat collection and utilization device for high-temperature boiler exhaust gas according to claim 1, characterized in that, The side wall of the housing (001) is provided with a plurality of holes and grooves (111), and the side wall of the filter cartridge (202) is fixedly connected with a circular plate (203), and the side wall of the circular plate (203) is threadedly connected to the inner wall of the holes and grooves (111).

6. The waste heat collection and utilization device for high-temperature boiler exhaust gas according to claim 5, characterized in that, The circular plate (203) has a protrusion (204) fixedly connected to its side wall, and the protrusion (204) is T-shaped.

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