Ventilation device for gas boiler room

Abstract

The utility model discloses a gas boiler room ventilation device, including gas boiler room (1), the bottom of gas boiler room (1) wall is provided with air inlet device, the roof (13) of gas boiler room (1) is provided with exhaust device, the position of gas boiler room (1) in close to the roof (13) is provided with a plurality of gas sensor (2), air inlet device, exhaust device with gas sensor (2) all are electrically connected with the control box (3) of setting in gas boiler room (1) outside. The utility model can detect the gas concentration of gas boiler room, and can realize quick aeration.

Description

Technical Field

[0001] This utility model relates to a ventilation device, and more particularly to a ventilation device for a gas-fired boiler room. Background Technology

[0002] Many cigarette manufacturing enterprises have installed gas-fired boilers, and these systems often operate continuously for 24 hours. Gas leaks frequently occur during the operation of these boilers. These leaks not only affect production but also pose safety hazards. If a large gas leak is not detected in time, it could lead to an explosion, causing significant safety problems and economic losses.

[0003] Currently, tobacco manufacturing companies require staff to periodically conduct manual checks on the gas concentration in the boiler room. If the concentration exceeds safe limits, the boiler must be shut down for inspection. However, gas is less dense than air, so once a gas leak occurs, the concentration at the boiler room roof is higher than at the bottom. Manual checks are ineffective at measuring the gas concentration at the roof, leading to inaccurate results. Furthermore, once a gas leak is detected, it is difficult to quickly remove the gas from the boiler room. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation device for a gas-fired boiler room to solve the technical problems in the prior art. It can detect the gas concentration in the gas-fired boiler room and achieve rapid air exchange.

[0005] This utility model provides a ventilation device for a gas-fired boiler room, including a gas-fired boiler room. An air intake device is provided at the bottom of the wall of the gas-fired boiler room, and an exhaust device is provided on the roof of the gas-fired boiler room. Multiple gas sensors are provided inside the gas-fired boiler room near the roof. The air intake device, the exhaust device, and the gas sensors are all electrically connected to a control box located outside the gas-fired boiler room.

[0006] In the aforementioned ventilation device for a gas-fired boiler room, preferably, the air intake device includes louvers, which are installed at the bottom of the side wall of the gas-fired boiler room and are normally open.

[0007] In the aforementioned ventilation device for a gas-fired boiler room, preferably, the air intake device further includes an air intake fan, and multiple air intake fans are installed at the bottom of the side wall of the gas-fired boiler room, and all of the air intake fans are electrically connected to the control box.

[0008] In the aforementioned ventilation device for a gas-fired boiler room, preferably, a gas-fired boiler is installed inside the gas-fired boiler room, a gas pipeline is connected to the gas-fired boiler, an electric valve is installed on the gas pipeline, the electric valve is located outside the gas-fired boiler room, and the electric valve is electrically connected to the control box.

[0009] In the aforementioned ventilation device for a gas-fired boiler room, preferably, the exhaust device includes several air extraction cylinders, which are fixed on the roof of the gas-fired boiler room. Each air extraction cylinder is equipped with an air extraction valve, and each air extraction cylinder has a rain cap at its top.

[0010] In the aforementioned ventilation device for a gas-fired boiler room, preferably, the exhaust device further includes an exhaust fan, and multiple exhaust fans are installed on the roof of the gas-fired boiler room, all of which are electrically connected to the control box.

[0011] Compared with the prior art, this utility model can detect the gas concentration at the top of the gas boiler room in real time by setting a gas sensor. When the gas concentration exceeds the preset value, the control box controls the gas intake and exhaust devices to work, quickly discharge the gas in the gas boiler room, and ensure safe production. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Explanation of reference numerals in the attached diagram: 1. Gas boiler room; 2. Gas sensor; 3. Control box; 4. Louver; 5. Air intake fan; 6. Gas boiler; 7. Gas pipeline; 8. Electric valve; 9. Gas extraction cylinder; 10. Gas extraction valve; 11. Rain cap; 12. Exhaust fan; 13. Roof. Detailed Implementation

[0014] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0015] Embodiments of this utility model: such as Figure 1 As shown, a ventilation device for a gas-fired boiler room includes a gas-fired boiler room 1. An air intake device is installed at the bottom of the wall of the gas-fired boiler room 1, and an exhaust device is installed on the roof 13 of the gas-fired boiler room 1. Multiple gas sensors 2 are installed inside the gas-fired boiler room 1 near the roof 13. The air intake device, the exhaust device and the gas sensors 2 are all electrically connected to a control box 3 installed outside the gas-fired boiler room 1.

[0016] The air intake device is used to supply fresh air into the gas-fired boiler room 1, and the exhaust device is used to exhaust the gas from the gas-fired boiler room 1, thereby keeping the air in the gas-fired boiler room 1 fresh.

[0017] In addition, when the gas sensor 2 detects that the gas concentration in the gas boiler room 1 exceeds the preset value, the control box 3 can control the exhaust device and the intake device to work simultaneously to actively exchange air and quickly discharge the gas in the gas boiler room 1.

[0018] Specifically, the air intake device includes louvers 4, which are installed at the bottom of the side wall of the gas-fired boiler room 1 and are normally open. Outside air can enter the gas-fired boiler room 1 through the louvers 4, allowing air circulation between the inside and outside of the gas-fired boiler room 1.

[0019] The exhaust system includes several exhaust cylinders 9, which are fixed to the roof 13 of the gas boiler room 1. Each exhaust cylinder 9 is equipped with an exhaust valve 10, and each exhaust cylinder 9 has a rain cap 11 at its top. The exhaust valve 10 is an electric valve and is electrically connected to the control box 3.

[0020] A gas boiler 6 is installed in the gas boiler room 1. A gas pipeline 7 is connected to the gas boiler 6. An electric valve 8 is installed on the gas pipeline 7. The electric valve 8 is located outside the gas boiler room 1 and is electrically connected to the control box 3.

[0021] Because the gas boiler 6 and steam pipes inside the gas boiler room 1 have high temperatures, and proper insulation will result in relatively large heat dissipation from their surfaces, the ambient temperature inside the gas boiler room 1 will be higher than normal. Therefore, a certain number of gas extraction cylinders 9 are installed on the roof 13 of the gas boiler room 1. The gas extraction cylinders 9 can be made of thin steel pipes, so that the gas extraction cylinders 9 do not need to be too high to form a "chimney effect" and automatically extract gas to the outside. A rain cap 11 is installed at the outlet of the gas extraction cylinder 9 or an elbow is installed at the upper end of the gas extraction cylinder 9 to prevent rainwater from flowing into the room along the gas extraction cylinder 9.

[0022] Furthermore, the air intake device also includes an air intake fan 5. Multiple air intake fans 5 are installed at the bottom of the side wall of the gas boiler room 1, and all air intake fans 5 are electrically connected to the control box 3.

[0023] The exhaust system also includes exhaust fans 12. Multiple exhaust fans 12 are installed on the roof 13 of the gas boiler room 1, and all exhaust fans 12 are electrically connected to the control box 3.

[0024] The control box 3 is equipped with a PLC programmable controller, which is a commercially available product and can be purchased directly. The PLC programmable controller is used to receive signals from the gas sensor 2 and control the working status of the intake fan 5, electric valve 8, gas extraction valve 10, and exhaust fan 12.

[0025] The working principle of this utility model is as follows: During daily operation, outside air enters the gas boiler room 1 through the louvers 4, and the air in the gas boiler room 1 is discharged from the exhaust pipe 9 on the roof 13. This air circulation not only improves the indoor environment, but also allows the gas boiler 6 to continuously replenish fresh air, which helps the combustion inside the boiler. If there is a natural gas leak indoors, since the density of natural gas is less than that of air, it helps to naturally discharge the leaked natural gas from the room.

[0026] The gas pump 9 is also equipped with a gas extraction valve 10. When the indoor temperature is not very high in winter, the gas extraction valve 10 can be closed or partially closed to slow down the flow of hot air in the room and maintain the temperature inside the gas boiler room 1. Therefore, the gas pump 9 also plays a role in regulating the temperature of the boiler room.

[0027] If a large amount of natural gas leaks, the gas pump 9 installed on the roof 13 cannot completely remove the leaking natural gas. When the natural gas accumulates to a certain density in the upper part of the gas boiler room 1, the gas sensor 2 installed below the roof 13 detects the natural gas. As long as one gas sensor 2 detects the leaking natural gas, it will send a signal to the PLC programmable controller in the control box 3. The PLC programmable controller controls the exhaust fan 12 installed on the roof 13 and the intake fan 5 installed at the bottom of the side wall to work. The intake fan 5 introduces fresh air into the gas boiler room 1, and the exhaust fan 12 expels the leaked natural gas and air from the gas boiler room 1 to the outside. This strengthens the air circulation in the room and smoothly removes the leaked natural gas through mechanical forced discharge, preventing the risk of explosion due to excessive accumulation of natural gas in the room. At the same time, the PLC programmable controller also controls the electric valve 8 to cut off the gas pipeline 7, thereby stopping the supply of gas to the gas boiler 6. After the leaked natural gas in the gas boiler room 1 has been completely discharged and the leak point has been repaired and restored to normal, the electric valve 8 must be manually opened to restore the gas supply.

[0028] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A ventilation device for a gas-fired boiler room, comprising a gas-fired boiler room (1), characterized in that: An air intake device is provided at the bottom of the wall of the gas boiler room (1), and an exhaust device is provided on the roof (13) of the gas boiler room (1). Multiple gas sensors (2) are provided in the gas boiler room (1) near the roof (13). The air intake device, the exhaust device and the gas sensors (2) are all electrically connected to a control box (3) located outside the gas boiler room (1).

2. The ventilation device for a gas-fired boiler room according to claim 1, characterized in that: The air intake device includes a louver (4), which is installed at the bottom of the side wall of the gas boiler room (1) and is normally open.

3. The ventilation device for a gas-fired boiler room according to claim 2, characterized in that: The air intake device also includes an air intake fan (5). Multiple air intake fans (5) are installed at the bottom of the side wall of the gas boiler room (1). All of the air intake fans (5) are electrically connected to the control box (3).

4. The ventilation device for a gas-fired boiler room according to claim 1, characterized in that: The gas boiler room (1) is equipped with a gas boiler (6), and a gas pipeline (7) is connected to the gas boiler (6). An electric valve (8) is installed on the gas pipeline (7). The electric valve (8) is located outside the gas boiler room (1) and is electrically connected to the control box (3).

5. The ventilation device for a gas-fired boiler room according to claim 1, characterized in that: The exhaust device includes several air pumps (9), which are fixed on the roof (13) of the gas boiler room (1). Each air pump (9) is equipped with an air pump valve (10) and a rain cap (11) is provided at the top of each air pump (9).

6. The ventilation device for a gas-fired boiler room according to claim 5, characterized in that: The exhaust device also includes exhaust fans (12). Multiple exhaust fans (12) are installed on the roof (13) of the gas boiler room (1). All of the exhaust fans (12) are electrically connected to the control box (3).

Images