Smoke exhaust system and method for newly-added equipment under chimney-free condition and using method of smoke exhaust system and method

Abstract

The invention relates to a smoke exhaust system, a smoke exhaust method and a using method for newly-added equipment under the chimney-free condition. The smoke exhaust method comprises the steps that adjacent existing smoke exhaust pipelines are communicated through connecting pipelines; the existing equipment and the newly-added equipment are connected into the smoke exhaust pipeline through the three-way valve; the three-way valve is selectively communicated with the smoke exhaust pipeline, and selective smoke exhaust of all devices is achieved. The characteristic that most of a diesel generator, a heating boiler, a domestic hot water boiler, a steam boiler and the like are used at different time or in an off-peak mode is utilized, an existing smoke exhaust pipeline is transformed, connected and communicated, an electric three-way valve and an intelligent control system are additionally arranged, waste gas emission of a newly-added boiler or a diesel generator can be achieved through an existing chimney, and energy conservation and emission reduction are achieved. The problem that smoke cannot be exhausted due to the fact that no smoke exhaust pipeline is reserved when a boiler, a heat supply device and other devices are additionally arranged in a formed building is solved.

Description

Technical Field

[0001] This invention relates to the field of smoke extraction technology, and in particular to a smoke extraction system, smoke extraction method, and usage method for new equipment without a chimney. Background Technology

[0002] In existing large public buildings such as hospitals, boilers or diesel generators are often needed to meet the operational load of subsequent equipment. However, the original building did not have a pre-designed exhaust system for the new boilers or diesel generators. If a separate design were to be made, the boiler and heating exhaust system would need to be redesigned and constructed, consuming enormous manpower and financial resources, with a long construction period and disruption to the normal use of the original building. If the exhaust gas from the equipment is directly connected to the existing chimney, the large amount of exhaust gas will obstruct the chimney's exhaust flow, affecting the exhaust efficiency.

[0003] The urgent need is to find a way to improve the smoke extraction efficiency without requiring extensive structural modifications to the existing building. Summary of the Invention

[0004] To address the aforementioned issues, a smoke exhaust system, method, and usage method for adding new equipment without a chimney are provided. This aims to enable new boilers or heating equipment to share existing smoke exhaust pipes for exhaust gas discharge, solving the problem of not being able to install smoke exhaust pipes when adding boilers, diesel generators, or other equipment in existing buildings due to the lack of flues.

[0005] The specific technical solution is as follows: The first aspect of the present invention is to provide a method for smoke extraction under the condition of adding a chimney-free equipment, comprising: Connect adjacent existing smoke exhaust pipes using connecting pipes; Use a three-way valve to connect existing and new equipment to the smoke exhaust duct; By using a three-way valve to selectively connect the smoke exhaust duct, selective smoke exhaust from all equipment can be achieved.

[0006] Furthermore, the connecting pipe is welded to the smoke exhaust pipe.

[0007] The second aspect of the present invention is to provide a smoke exhaust system for newly added equipment under chimney-free conditions, including a heating device 1, a heating device 2, a hot water device, a steam device, a smoke exhaust pipe 1, a smoke exhaust pipe 2, and a smoke exhaust pipe 3. Smoke exhaust pipe 1 and smoke exhaust pipe 2 are connected by a connecting pipe 1, and smoke exhaust pipe 2 and smoke exhaust pipe 3 are connected by a connecting pipe 2. The heating device 1, heating device 2, hot water device, and steam device are respectively connected to the smoke exhaust pipes through three-way valve 1, three-way valve 2, three-way valve 3, and three-way valve 4.

[0008] Furthermore, the smoke exhaust system also includes a control box, and heating equipment 1, heating equipment 2, hot water equipment, steam equipment, three-way valve 1, three-way valve 2, three-way valve 3 and three-way valve 4 are all electrically connected to the control box.

[0009] The above-mentioned smoke exhaust system is used as follows: When heating equipment 1 is turned off, and heating equipment 2, hot water equipment, and steam equipment are turned on, control three-way valves 1, 2, 3, and 4 to keep the smoke exhaust pipe of heating equipment 1 closed, so that the flue gas generated by heating equipment 2, hot water equipment, and steam equipment 4 is discharged through smoke exhaust pipe 3, smoke exhaust pipe 2, and smoke exhaust pipe 1 respectively; or When the steam equipment is turned off, heating equipment 1, heating equipment 2, and hot water equipment are turned on, controlling three-way valves 1, 2, 3, and 4 to keep the exhaust pipes of the steam equipment closed, so that the flue gas generated by heating equipment 1, heating equipment 2, and hot water equipment is discharged through exhaust pipes 3, 2, and 1 respectively.

[0010] The third aspect of the present invention is to provide a flue gas system for new equipment without a chimney, including a diesel generator and a boiler, both of which are connected to a flue gas duct four, and a three-way valve five is installed at the connection between the diesel generator and the boiler and the flue gas duct four.

[0011] Furthermore, the flue gas system also includes a control box, diesel generator, boiler equipment, and three-way valves with five electrical connections.

[0012] The above-mentioned flue gas system is used as follows: When the boiler is shut down and the diesel generator is turned on, adjust the three-way valve five to close the flue gas duct of the boiler, and the flue gas generated by the diesel generator will be discharged through the flue gas duct four; or When the boiler is turned on and the diesel generator is turned off, adjust the three-way valve five to close the exhaust pipe of the diesel generator, and the flue gas generated by the boiler is discharged through the exhaust pipe four.

[0013] The beneficial effects of the above scheme are: 1) This invention utilizes the characteristic that diesel generators, heating boilers, domestic hot water boilers, steam boilers, etc. are mostly used at different times or during off-peak periods. It modifies and connects existing flue pipes, and by adding electric three-way valves and intelligent control systems, it enables new boilers or diesel generators to use existing chimneys for exhaust gas emission. This solves the problem that it is impossible to exhaust smoke when adding boilers, heating equipment, etc. in existing buildings due to the lack of pre-reserved flue pipes. 2) This invention achieves automatic switching of the flue gas pipeline at different times through the automatic control of the electric three-way valve and the intelligent control system, which solves the problem of poor flue gas emission caused by insufficient chimney cross-section or insufficient draft when sharing a chimney. 3) Using the method provided by this invention, in most cases where it is not feasible to install a chimney in the later stages of a building, existing equipment and chimneys can be used to form a new smoke exhaust system by adding an electric three-way valve and an intelligent control system, thereby achieving a large amount of exhaust gas emission. The new equipment does not require changes to the original building structure or the installation of new smoke exhaust pipes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first state of the smoke extraction system provided in Embodiment 1 of the present invention: Figure 2 This is a schematic diagram of the second state of the smoke extraction system provided in Embodiment 1 of the present invention: Figure 3 This is a schematic diagram of the first state of the smoke exhaust system provided in Embodiment 2 of the present invention; Figure 4 This is a schematic diagram of the second state of the smoke exhaust system provided in Embodiment 2 of the present invention.

[0015] In the attached diagram: 1. Heating equipment one; 2. Heating equipment two; 3. Hot water equipment; 4. Steam equipment; 5. Diesel generator equipment; 6. Boiler equipment; 8. Control box; y1. Exhaust pipe one; y2. Exhaust pipe two; y3. Exhaust pipe three; y4. Exhaust pipe four; a1. Three-way valve one; a2. Three-way valve two; a3. Three-way valve three; a4. Three-way valve four; a4. Three-way valve five. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0019] In large public buildings such as hospitals that are already in place, it is often necessary to add equipment such as boilers or diesel generators, depending on the operating load of the hospital's subsequent equipment.

[0020] Heating, steam, and hot water boilers are not used simultaneously most of the time. For example, heating boilers are only turned on in winter, steam boilers are only turned on during the day, and hot water boilers are mostly turned on in the morning and evening (the amount of hot water used at other times is less, and the hot water in the hot water storage tank can meet the demand).

[0021] Example 1 like Figure 1 , Figure 2 As shown, the smoke exhaust system provided in this embodiment includes heating equipment 1, heating equipment 2, hot water equipment 3, steam equipment 4, smoke exhaust pipe 1 y1, smoke exhaust pipe 2 y2, and smoke exhaust pipe 3 y3. Smoke exhaust pipe 1 y1 and smoke exhaust pipe 2 y2 are connected by connecting pipe 1, and smoke exhaust pipe 2 y2 and smoke exhaust pipe 3 y3 are connected by connecting pipe 2. Heating equipment 1, heating equipment 2, hot water equipment 3, and steam equipment 4 are respectively connected to the smoke exhaust pipes through three-way valve 1 a1, three-way valve 2 a2, three-way valve 3 a3, and three-way valve 4 a4.

[0022] In the above system, during the non-heating season, when hot water and steam are used extensively and heating is not required or only a small amount is needed, heating equipment 1 is turned off, while heating equipment 2, hot water equipment 3, and steam equipment 4 are turned on. The states of three-way valves a1, a2, a3, and a4 are controlled to keep the exhaust pipe of heating equipment 1 closed, ensuring that the flue gas generated by heating equipment 2, hot water equipment 3, and steam equipment 4 can only be discharged through exhaust pipes y3, y2, and y1, respectively.

[0023] When the heat exchange volume of the heating boiler is high during the heating season, the use of domestic hot water and steam can be planned to be staggered throughout the day. For example, hospitalized patients use a large amount of domestic hot water during their non-working hours in the morning and evening, requiring the domestic hot water boiler to be turned on. The steam boiler is mainly used by the disinfection supply center during the working hours of medical staff. During these working hours, the hot water in the domestic hot water storage tank can meet the demand. The operating times of the hot water boiler and the steam boiler can also be adjusted. At this time, the steam equipment 4 is turned off, and the heating equipment 1, heating equipment 2, and hot water equipment 3 are turned on. The states of the three-way valves 1a1, 2a2, 3a3, and 4a4 are controlled to keep the exhaust pipe of the steam equipment 4 in a closed state, so that the flue gas generated by the heating equipment 1, heating equipment 2, and hot water equipment 3 can only be discharged through the exhaust pipes 3y3, 2y2, and 1y1, respectively.

[0024] It should be noted that, in this embodiment, 3 of the 4 devices are existing devices, and any additional device can be added to make them share the same exhaust chimney. Furthermore, arbitrary combinations and conversions can be achieved through the coordinated opening angles of the 4 sets of electric three-way valves.

[0025] Example 2 The diesel generator is running to ensure a primary load, while the boiler equipment's operating requirements are not within this load range. Therefore, the diesel generator will not be activated simultaneously with any other boiler equipment.

[0026] like Figure 3 , Figure 4 As shown, this embodiment utilizes the characteristic that diesel generator equipment and boiler equipment cannot be used simultaneously, and connects the new equipment to the existing chimney for sharing. Specifically, the exhaust system provided in this embodiment 2 includes diesel generator equipment 5 and boiler equipment. Both diesel generator equipment 5 and boiler equipment are connected to exhaust pipe 4. A three-way valve 5a5 is installed at the connection between diesel generator equipment 5 and boiler equipment 6 and exhaust pipe 4y4.

[0027] In the above system, when boiler equipment 6 is off and diesel generator 5 is on, adjusting the three-way valve 5a5 closes the exhaust pipe of boiler equipment 6, allowing the flue gas generated by diesel generator 5 to be discharged through exhaust pipe 4y4. When the external power supply is cut off, the boiler equipment is no longer under primary load, and diesel generator 5 is shut off. Adjusting the three-way valve 5a5 closes the exhaust pipe of diesel generator 5, allowing the flue gas generated by boiler equipment 6 to be discharged only through exhaust pipe 4y4.

[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for exhausting smoke from newly added equipment under chimney-free conditions, characterized in that, include: Connect adjacent existing smoke exhaust pipes using connecting pipes; The existing and new equipment are connected to the exhaust duct using a three-way valve; The three-way valve is used to selectively connect the exhaust duct, thereby enabling selective exhaust of all equipment.

2. The method for exhausting smoke under chimney-free conditions for newly added equipment according to claim 1, characterized in that, The connecting pipe is welded to the smoke exhaust pipe.

3. A smoke exhaust system for newly added equipment without a chimney, characterized in that, The method for exhausting smoke under chimney-free conditions using the newly added equipment as described in claim 1 or 2 includes a heating device 1, a heating device 2, a hot water device, a steam device, an exhaust pipe 1, an exhaust pipe 2, and an exhaust pipe 3. The exhaust pipe 1 and the exhaust pipe 2 are connected by a connecting pipe 1, and the exhaust pipe 2 and the exhaust pipe 3 are connected by a connecting pipe 2. The heating device 1, the heating device 2, the hot water device, and the steam device are respectively connected to the exhaust pipes through three-way valves 1, 2, 3, and 4.

4. The smoke exhaust system under the condition of no chimney for newly added equipment as described in claim 3, characterized in that, The smoke exhaust system also includes a control box, and the heating equipment 1, the heating equipment 2, the hot water equipment, the steam equipment, the three-way valve 1, the three-way valve 2, the three-way valve 3 and the three-way valve 4 are all electrically connected to the control box.

5. The method of using the smoke exhaust system according to claim 3 or 4, characterized in that, When heating equipment 1 is turned off, heating equipment 2, hot water equipment, and steam equipment are turned on, controlling three-way valve 1, three-way valve 2, three-way valve 3, and three-way valve 4, so that the exhaust pipe of heating equipment 1 is in a closed state, and the flue gas generated by heating equipment 2, hot water equipment, and steam equipment is discharged through exhaust pipe 3, exhaust pipe 2, and exhaust pipe 1, respectively.

6. The method of using the smoke exhaust system according to claim 3 or 4, characterized in that, When the steam equipment is turned off, heating equipment 1, heating equipment 2, and hot water equipment are turned on, controlling three-way valve 1, three-way valve 2, three-way valve 3, and three-way valve 4 to keep the exhaust pipe of the steam equipment closed, so that the flue gas generated by heating equipment 1, heating equipment 2, and hot water equipment is discharged through exhaust pipe 3, exhaust pipe 2, and exhaust pipe 1, respectively.

7. A smoke exhaust system for newly added equipment without a chimney, characterized in that, The method for exhausting smoke under chimney-free conditions using the newly added equipment as described in claim 1 or 2 includes a diesel generator and a boiler, both of which are connected to exhaust pipe four, and a three-way valve five is installed at the connection between the diesel generator and the boiler and the exhaust pipe four.

8. The smoke exhaust system under the condition of no chimney for newly added equipment as described in claim 7, characterized in that, The flue gas system also includes a control box, and the diesel generator, boiler equipment and the three-way valve are electrically connected.

9. The method of using the smoke exhaust system according to claim 7 or 8, characterized in that, When the boiler is shut down and the diesel generator is turned on, adjust the three-way valve five to close the flue gas duct of the boiler, and the flue gas generated by the diesel generator will be discharged through the flue gas duct four.

10. The method of using the smoke extraction system according to claim 7 or 8, characterized in that, When the boiler is turned on and the diesel generator is turned off, adjust the three-way valve five to close the exhaust pipe of the diesel generator, and the flue gas generated by the boiler is discharged through the exhaust pipe four.

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