Hot air utilization system of closed boiler room and closed boiler room

Abstract

The utility model relates to a hot air utilization system of a closed boiler room and the closed boiler room, the closed boiler room comprises a room body and a boiler arranged in the room body, and the hot air utilization system comprises an air outlet formed in the position, close to the top, of the room body; the heat exchanger is used for being connected to a water supply pipeline, and the heat exchanger can heat flowing water in the water supply pipeline through hot air entering the heat exchanger; and an airflow generating device. The airflow generating device can blow hot air located on the upper side of the boiler to the position, close to the bottom, of the boiler. And hot air at the upper side of the boiler can be blown to the heat exchanger. Hot air at the upper furnace top of the boiler room can be effectively utilized, and energy waste is reduced. Due to the fact that hot air at the top of the boiler room is supplied to other positions, micro negative pressure is generated at the top of the boiler room, cold air close to the bottom of the boiler room flows upwards, the temperature of the furnace top can be rapidly reduced through airflow circulation, and influences of high temperature on electronic elements on the furnace top are avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of heat utilization in boiler rooms, and specifically, to a hot air utilization system and a closed boiler room for a closed boiler room. Background Art

[0002] Due to the cold winter weather and many factors such as anti-freezing of equipment, boiler rooms usually adopt a fully enclosed form. During operation, since hot air flows upward, the upper furnace roof position of a fully enclosed boiler room is in a high temperature state, and the hot air temperature can reach 60°C. In order to avoid heat accumulation, it is necessary to open a skylight on the boiler room roof to discharge the hot air into the atmosphere for heat dissipation. However, with such a design, the heat at the top cannot be effectively recovered and utilized, resulting in energy waste. In addition, the method of discharging the hot air from the boiler room through the skylight on the furnace roof has problems such as an unclear temperature drop at the furnace roof, which is likely to burn out the electronic components on the furnace roof and reduce the service life of the electronic components. Utility Model Content

[0003] The purpose of the present disclosure is to provide a hot air utilization system and a closed boiler room for a closed boiler room to at least partially solve the problems existing in the related art.

[0004] To achieve the above purpose, the present disclosure provides a hot air utilization system for a closed boiler room. The closed boiler room includes a room body and a boiler disposed in the room body. The hot air utilization system includes:

[0005] An air outlet disposed at a position near the top of the room body;

[0006] A heat exchanger for connecting to a water supply pipeline, and the heat exchanger can heat the flowing water in the water supply pipeline by the hot air entering the heat exchanger; and

[0007] An air flow generating device,

[0008] wherein the air flow generating device can blow the hot air at the upper side of the boiler in the room body to the position near the bottom of the boiler through the air outlet; and the air flow generating device can blow the hot air at the upper side of the boiler in the room body to the heat exchanger through the air outlet.

[0009] Optionally, the air flow generating device can blow the hot air at the upper side of the boiler in the room body to the position provided with an infrastructure platform or a rotating equipment near the bottom of the boiler through the air outlet.

[0010] Optionally, the air outlet is respectively communicated with the heat exchanger and the position near the bottom of the boiler through pipelines.

[0011] Optionally, it further includes:

[0012] A first pipeline, connected between a position near the bottom of the boiler and the air outlet; and

[0013] A second pipeline, with one end connected to the heat exchanger and the other end connected to the side wall of the first pipeline.

[0014] Optionally, a second valve is provided on the second pipeline, and a third valve is provided at a position on the first pipeline on the side away from the air outlet of the second pipeline.

[0015] Optionally, one end of the first pipeline near the air outlet is connected to the air outlet through two first branch pipelines, the number of the air flow generating devices is two and they are respectively installed on the corresponding first branch pipelines, and the two first branch pipelines are respectively provided with first valves.

[0016] Optionally, the end of the first pipeline away from the air outlet is connected to different positions near the bottom of the boiler through a plurality of second branch pipelines.

[0017] Optionally, the number of the air outlets is multiple, and the multiple air outlets are connected to the first pipeline through a third pipeline.

[0018] Optionally, the air flow generating device is a fan, and the fan is provided with a filter screen.

[0019] According to the second aspect of the present disclosure, a closed boiler room is provided, including a room body, a boiler arranged in the room body, and the above-mentioned hot air utilization system.

[0020] Through the above technical solution, the air flow generating device can return the hot air near the top position in the room body to the position near the bottom of the boiler (with a lower temperature) to heat the bottom of the boiler or the equipment arranged at the bottom position of the boiler; or, the air flow generating device can also return the hot air near the top position in the room body to the heat exchanger to heat the flowing water in the water supply pipeline. Or, the air flow generating device can also supply the hot air at the top of the room body to both the position near the bottom of the boiler and the heat exchanger simultaneously. Designed in this way, the hot air at the upper furnace top position of the boiler room can be effectively utilized, reducing energy waste. And since the hot air at the top of the boiler room is supplied to other positions, a slight negative pressure is generated at the top of the boiler room, so that the cold air near the bottom of the boiler room flows upward, and this air flow cycle can quickly reduce the temperature of the furnace top, avoiding the influence of high temperature on the electronic components at the furnace top.

[0021] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation part. Brief Description of the Drawings

[0022] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0023] Figure 1 Schematic diagram of a hot air utilization system for a closed boiler room according to an exemplary embodiment of the present disclosure.

[0024] Description of Reference Numerals

[0025] 1-room body; 101-air outlet; 2-boiler; 3-heat exchanger; 31-water supply pipeline; 4-airflow generating device; 51-first pipeline; 52-second pipeline; 53-third pipeline; 61-first branch pipeline; 62-second branch pipeline; 71-first valve; 72-second valve; 73-third valve. DETAILED DESCRIPTION

[0026] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0027] In the present disclosure, unless otherwise stated, the directional words used, such as "up", "down", "top", and "bottom", may be defined based on the actual usage direction of the relevant components, or may be defined based on the structure of the relevant components themselves. For example: an air outlet is arranged at a position close to the "top" of the room body, and the "top" here is based on the height direction, that is, the position of the room body away from the ground is called the "top"; the air flow generating device can blow the hot air in the room body located at the "upper side" of the boiler to the position close to the "bottom" of the boiler through the air outlet, and the "upper side" and "bottom" here are also based on the height direction, that is, the side of the boiler facing away from the bottom surface is called the "upper side", and the position close to the ground is called the "bottom".

[0028] In addition, in this disclosure, the terms "first", "second", etc. are used to distinguish one element from another and do not have order or importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0029] Reference Figure 1, this disclosure exemplarily shows a hot air utilization system for a closed boiler room. The closed boiler room includes a room body 1 and a boiler 2 disposed inside the room body 1. The hot air utilization system includes: an air outlet 101 disposed at a position near the top of the room body 1, a heat exchanger 3 for connecting to a water supply pipeline 31, and an air flow generating device 4. Among them, the heat exchanger 3 can heat the flowing water in the water supply pipeline 31 through the hot air entering the heat exchanger 3, and the air flow generating device 4 can blow the hot air at a position above the boiler 2 in the room body 1 to a position near the bottom of the boiler 2 through the air outlet 101; and the air flow generating device 4 can blow the hot air at a position above the boiler 2 in the room body 1 to the heat exchanger 3 through the air outlet 101. Here, the air flow generating device 4 can blow the hot air only to a position near the bottom of the boiler 2, or can also blow the hot air only to the heat exchanger 3, or can also blow the hot air to both a position near the bottom of the boiler 2 and the heat exchanger 3 at the same time. The specific flow path can be controlled by valves and the like.

[0030] In an embodiment of the present disclosure, the air outlet 101 can be opened on the top wall of the room body 1, or can also be opened at a position near the top of the side wall of the room body 1, and its quantity can be one, three, five, etc. The water supply pipeline 31 can refer to a pipeline for domestic water or a pipeline for heating, and the flowing water inside it can be heated when passing through the heat exchanger 3. The present disclosure does not limit the structure of the heat exchanger 3. It can be provided with an inlet and an outlet for the flowing water to flow in and out, and can be provided with an air inlet end for the hot air to enter and an air outlet end for the hot air to flow out. The hot air and the flowing water can exchange heat inside the heat exchanger 3.

[0031] The present disclosure does not limit the installation position of the air flow generating device 4. It can be installed inside the room body 1, or can also be installed outside the room body 1. Correspondingly, the path of the hot air flow can be inside the room body 1 or outside the room body 1. The present disclosure does not limit this.

[0032] It should be noted that the aforementioned "position near the bottom of the boiler 2" refers to the position near the ground of the boiler 2, such as 0 meters - 14 meters, and can be adaptively designed according to the actual situation. Since the temperature at the bottom position of the boiler 2 is relatively low, supplying hot air to this position can play a role in raising the temperature.

[0033] By using the above technical solution, the air flow generating device 4 can return the hot air near the top position in the housing body 1 to the position near the bottom of the boiler 2 (with a lower temperature) to heat the bottom of the boiler 2 or the equipment arranged at the bottom position of the boiler 2; or, the air flow generating device 4 can also return the hot air near the top position in the housing body 1 to the heat exchanger 3 to heat the flowing water in the water supply pipeline 31. Or, the air flow generating device 4 can also supply the hot air at the top of the housing body 1 to the position near the bottom of the boiler 2 and the heat exchanger 3 simultaneously. With such a design, the hot air at the upper furnace top position of the boiler room can be effectively utilized, which can greatly reduce energy waste compared with the traditional way of discharging it to the atmosphere, and can quickly reduce the temperature at the furnace top position to avoid the influence of high temperature on the electronic components at the furnace top. In addition, since the hot air at the top of the boiler room is supplied to other positions, a slight negative pressure is generated at the top of the boiler room, so that the cold air near the bottom of the boiler room can automatically flow upward, and this air flow cycle can further accelerate the reduction of the furnace top temperature.

[0034] In the embodiments of the present disclosure, the air flow generating device 4 can blow the hot air at the position above the boiler 2 in the housing body 1 to the position near the bottom of the boiler 2 where there is an infrastructure platform or a turning equipment through the air outlet 101. The purpose of such a design is that the infrastructure platform is beneficial to building the equipment or pipelines for the return of hot air. And the turning equipment needs to work in a set temperature environment, and the return of hot air can heat the turning equipment so that it can meet the use conditions, without the need to additionally set an electric heating device for the turning equipment, reducing energy consumption waste. The present disclosure does not limit the turning equipment. For example, in the embodiments of the present disclosure, the hot air can be blown to the 0 m and 13.7 m positions of the boiler 2. The turning equipment at the 0 m position includes: a forced draft fan and its hydraulic oil station and lubricating oil station, a primary air fan and its hydraulic oil station and lubricating oil station, a slag extractor and its hydraulic oil station, a pebble coal fan and its cooler, a coal mill and its hydraulic oil station and lubricating oil station, a seal fan, a plasma cooling water pump, a drain flash tank and its drain pump, etc. The turning equipment at the 13.7 m position includes: a coal feeder and its control cabinet, an air preheater and its support bearing oil station, a guide bearing oil station, a driving device and a speed reducer, a plasma air heater, a flame detector fan and its control cabinet, etc.

[0035] The present disclosure does not limit how the hot air from the air outlet 101 is supplied to the bottom position of the boiler 2 and the heat exchanger 3. For example, in the embodiments of the present disclosure, the air outlet 101 can be respectively communicated with the heat exchanger 3 and the position near the bottom of the boiler 2 through pipelines. The pipelines can be arranged inside the housing body 1 or can also be arranged outside the housing body 1.

[0036] Specifically, referring to Figure 1, in an embodiment of the present disclosure, the hot air utilization system may further include: a first pipeline 51 connected between a position near the bottom of the boiler 2 and the air outlet 101; and a second pipeline 52, one end of which is connected to the heat exchanger 3 and the other end of which is connected to the side wall of the first pipeline 51. With such a design, the hot air from the air outlet 101 can flow to the position near the bottom of the boiler 2 through the first pipeline 51, or can also flow to the heat exchanger 3 through a part of the first pipeline 51 and the second pipeline 52. In addition, in some other embodiments, a main pipeline communicating with the air outlet 101 may be provided, and then two branch pipelines respectively connected to the main pipeline may be provided. One of the two branch pipelines extends to the heat exchanger 3, and the other extends to the position near the bottom of the boiler 2.

[0037] Further, referring to Figure 1 , in an embodiment of the present disclosure, the second pipeline 52 may be provided with a second valve 72, and a third valve 73 may be provided at a position on the side of the first pipeline 51 away from the air outlet 101 with respect to the second pipeline 52. Here, it should be explained that "the side of the first pipeline 51 away from the air outlet 101 with respect to the second pipeline 52" refers to the side of the connection position of the first pipeline 51 and the second pipeline 52 away from the air outlet 101. With such a design, for example, when the temperature near the bottom of the boiler 2 is very low in winter, the second valve 72 can be closed and the third valve 73 can be opened. At this time, the hot air can be supplied to the position near the bottom of the boiler 2 through the first pipeline 51 to heat the bottom of the boiler 2 and the rotating equipment around it; when the temperature near the bottom of the boiler 2 can meet the usage requirements in summer, the third valve 73 can be closed and the second valve 72 can be opened, so that the hot air can enter the heat exchanger 3 through a part of the first pipeline 51 and the second pipeline 52 to heat the flowing water in the water supply pipeline, so that the flowing water can be supplied to apartments, etc. as domestic hot water. Or the second valve 72 and the third valve 73 can also be opened at the same time, so that the hot air can be supplied to both the heat exchanger 3 and the position near the bottom of the boiler 2 at the same time. The hot air utilization system has strong applicability and convenient operation, and can switch the working state according to actual needs.

[0038] Referring to Figure 1 , in an embodiment of the present disclosure, one end of the first pipeline 51 near the air outlet 101 may be connected to the air outlet 101 through two first branch pipelines 61. The number of the air flow generating devices 4 may be two and they are respectively installed on the corresponding first branch pipelines 61. The two first branch pipelines 61 may be respectively provided with first valves 71. With such a design, one or two air flow generating devices 4 can be selectively turned on according to actual needs during use. And when one of the air flow generating devices 4 fails, the corresponding first valve 71 can be closed and maintenance and replacement can be carried out. The other air flow generating device 4 can continue to work, avoiding the system from having to stop running for maintenance and replacement due to the damage of the air flow generating device 4.

[0039] Referring to Figure 1 , in the embodiments of the present disclosure, one end of the first pipeline 51 away from the air outlet 101 can be connected to different positions near the bottom of the boiler 2 through a plurality of second branch pipelines 62. With such a design, by providing a plurality of second branch pipelines 62, different positions near the bottom of the boiler 2 can be heated simultaneously, improving the function selection of the hot air utilization system, and enabling different positions near the bottom of the boiler 2 to be heated simultaneously, avoiding the problem of uneven heating at the bottom.

[0040] In order to increase the circulation speed of the hot air at the top of the housing body 1, referring to Figure 1 , in the embodiments of the present disclosure, the number of air outlets 101 can be multiple, and the multiple air outlets 101 can be connected to the first pipeline 51 through a third pipeline 53, that is, the hot air from the multiple air outlets 101 can converge to the first pipeline 51 through the third pipeline 53. The multiple air outlets 101 can more evenly discharge the hot air at various positions on the furnace top to the heat exchanger 3 or the positions near the bottom of the boiler 2.

[0041] The present disclosure does not limit the type of the air flow generating device 4. For example, in the embodiments of the present disclosure, the air flow generating device 4 can be a fan, and the fan can be provided with a filter screen (not shown in the figure). By providing the filter screen, the reflux hot air can be filtered to ensure that the reflux hot air remains clean and avoid carrying solid impurities, dust, etc. In addition to the fan, in some other embodiments, the air flow generating device 4 can also be an air pump or the like.

[0042] According to the second aspect of the present disclosure, a closed boiler room is provided, including a housing body 1, a boiler 2 arranged in the housing body 1, and the aforementioned hot air utilization system. Since this closed boiler room has all the beneficial effects of the aforementioned hot air utilization system, they will not be elaborated here.

[0043] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0044] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0045] Furthermore, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A hot air utilization system for a closed boiler room, the closed boiler room comprising a room body and a boiler disposed within the room body, characterized in that, The hot air utilization system includes: An air outlet, which is arranged at a position near the top of the housing body; A heat exchanger, which is used to connect to a water supply pipeline. The heat exchanger can heat the flowing water in the water supply pipeline by the hot air entering the heat exchanger; and An air flow generating device, wherein, the air flow generating device can blow the hot air at a position above the boiler in the housing body to a position near the bottom of the boiler through the air outlet; and the air flow generating device can blow the hot air at a position above the boiler in the housing body to the heat exchanger through the air outlet.

2. The hot air utilization system according to claim 1, wherein The air flow generating device can blow the hot air at a position above the boiler in the housing body to a position near the bottom of the boiler where there is an infrastructure platform or a rotating equipment.

3. The hot air utilization system according to claim 1, characterized in that, The air outlet is respectively communicated with the heat exchanger and a position near the bottom of the boiler through pipelines.

4. The hot air utilization system according to claim 3, characterized in that, It further includes: A first pipeline, which is connected between a position near the bottom of the boiler and the air outlet; And A second pipeline, one end of which is connected to the heat exchanger and the other end of which is connected to the side wall of the first pipeline.

5. The hot air utilization system according to claim 4, characterized in that, A second valve is arranged on the second pipeline, and a third valve is arranged at a position on the first pipeline on the side far from the air outlet of the second pipeline.

6. The hot air utilization system according to claim 4, wherein One end of the first pipeline near the air outlet is connected to the air outlet through two first branch pipelines. The number of the air flow generating devices is two and they are respectively installed on the corresponding first branch pipelines. The two first branch pipelines are respectively provided with first valves.

7. The hot air utilization system according to claim 4, characterized in that The other end of the first pipeline far from the air outlet is connected to different positions near the bottom of the boiler through a plurality of second branch pipelines.

8. The hot air utilization system according to claim 4, characterized in that, The number of the air outlets is multiple, and the multiple air outlets are connected to the first pipeline through a third pipeline.

9. The hot air utilization system according to claim 1, wherein The air flow generating device is a fan, and the fan is provided with a filter screen.

10. A closed boiler room, characterized in that, It includes a housing body, a boiler arranged in the housing body, and the hot air utilization system according to any one of claims 1-9.

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