Exhaust passage smoke leakage detection device

Abstract

The utility model discloses an exhaust passage smoke leakage detection device, including power device, smoke generating bin and connecting hose, smoke generating bin connects between power device and connecting hose, and power device is used for blowing to the smoke generating bin and sends the flue gas to the connecting hose, connecting hose is used for with the check valve on the exhaust passage connection, is used for sending the flue gas to the exhaust passage, and the smoke generating bin includes first smoke generating pipe and second smoke generating pipe, and first smoke generating pipe and second smoke generating pipe are detachably connected through the mode of inserting, first smoke generating pipe is connected with connecting hose, and second smoke generating pipe is connected with power device. The detection system of the application is composed of power device, smoke generating bin, connecting hose and input point position module, and the leakage point of exhaust passage can be effectively found after starting according to steps, so as to realize accurate maintenance, change passive to initiative, find leakage during installation and maintain with minimum cost, avoid the problem of complaint after house delivery, greatly reduce maintenance cost and improve brand reputation.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas detection, and in particular to a device for detecting smoke leakage in exhaust ducts. Background Technology

[0002] With the high-quality development of urban construction, people have higher and higher requirements for housing quality. In recent years, complaints caused by kitchen exhaust duct leakage have been on the rise. Exhaust duct leakage often occurs after the owner has moved in and the decoration has been completed. Both the difficulty and cost of repair are very high, and it also has a great impact on the reputation of developers and construction companies.

[0003] Currently, the airtightness of exhaust duct installation is mainly achieved by sealing the joints between the exhaust duct and the wall or floor slab through various methods. Due to the influence of construction techniques and human operation, leakage is inevitable. At the same time, there is a lack of effective testing methods to check the airtightness of the exhaust duct installation and accurately identify the location of smoke leakage.

[0004] A Chinese utility model patent with application number 202321791083.1 discloses a detection device for a smoke exhaust duct, belonging to the field of smoke duct detection technology. Specifically, it includes a smoke box and a sealed door installed on the smoke box. The smoke box contains a first partition and a second partition. An equipment cavity is provided between the first partition and the top plate of the smoke box. A smoke chamber is provided between the first and second partitions. A control cavity is provided between the second partition and the bottom plate of the smoke box. An exhaust fan is installed on the top of the smoke box. The exhaust fan's top outlet extends to the outside of the smoke box, and its inlet extends to the smoke chamber. The exhaust fan's outlet is used to connect to a check valve or a smoke pipe. A smoke generator is installed in the control cavity. This utility model has a simple structure, is easy to use, and can quickly detect smoke leakage in the smoke duct with high detection efficiency.

[0005] The aforementioned device is costly and inconvenient to transport up and down stairs, making it unsuitable for use on construction sites. Utility Model Content

[0006] This utility model provides an exhaust duct smoke leakage detection device, which can quickly detect smoke leakage in the exhaust duct and has the advantages of convenient operation and easy transportation.

[0007] The technical problem to be solved is that existing testing equipment is not suitable for use on construction sites.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses an exhaust duct smoke leakage detection device, comprising a power unit, a smoke generating chamber, and a connecting hose. The smoke generating chamber is connected between the power unit and the connecting hose. The power unit is used to blow air into the smoke generating chamber to transport the smoke generated in the smoke generating chamber to the connecting hose. The connecting hose is used to connect to a check valve on the exhaust duct to transport the smoke into the exhaust duct. The smoke chamber includes a first smoke pipe and a second smoke pipe, which are detachably connected by a plug-in connection. The first smoke pipe is connected to a connecting hose, and the second smoke pipe is connected to a power unit.

[0009] This utility model discloses an exhaust duct smoke leakage detection device, wherein the first smoke-generating pipe is inserted into the second smoke-generating pipe.

[0010] This utility model discloses an exhaust duct smoke leakage detection device. Further, a plastic inner shell is fixed on the inner wall of the insertion end of the second smoke generating pipe. The inner wall of the plastic inner shell is fixed with protrusions at even intervals at the same horizontal line. The outer wall of the first smoke generating pipe is formed with an outwardly convex annular protrusion. When the first smoke generating pipe is inserted into the second smoke generating pipe, the annular protrusion is pushed from the outside of the protrusion to the inside of the protrusion to achieve a snap-fit ​​engagement.

[0011] This utility model discloses an exhaust duct smoke leakage detection device, wherein the surface of the annular protrusion is an arc surface.

[0012] This utility model discloses an exhaust duct smoke leakage detection device. Furthermore, the connecting hose and the first smoke-generating pipe are fixed by a plug-in clamp; or by a plug-in sealing connection with tape.

[0013] This utility model discloses an exhaust duct smoke leakage detection device. Furthermore, the exhaust pipe of the power unit and the second smoke-generating pipe are fixed by a plug-in and adhesive tape sealing connection.

[0014] This utility model discloses an exhaust duct smoke leakage detection device, further comprising a filter screen that can be detachably installed at the outlet end of the first smoke-generating pipe.

[0015] This utility model discloses an exhaust duct smoke leakage detection device, wherein the power device is a gasoline blower.

[0016] This utility model discloses an exhaust duct smoke leakage detection device, wherein the first smoke generating pipe and the second smoke generating pipe are made of stainless steel round pipes.

[0017] This utility model discloses an exhaust duct smoke leakage detection device, wherein the connecting hose is an aluminum exhaust hose.

[0018] Compared with the prior art, this utility model has the following advantages: 1. The detection system, consisting of several modules including the power unit, smoke chamber, connecting hose, and input point location, can effectively detect leaks in the exhaust duct after starting according to the steps, enabling precise repairs and turning passive into proactive repairs. It can detect leaks during installation and repair them at the lowest cost, avoiding customer complaints after handover, greatly reducing maintenance costs, and improving brand reputation. 2. By designing a portable detection device, it is easy to carry up and down stairs, making it more suitable for use on construction sites; 3. The smoke chamber is designed for quick installation and disassembly, facilitating rapid connection and preventing smoke leakage.

[0019] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the power device of this utility model; Figure 3 This is a schematic diagram of the smoke-generating chamber structure of this utility model; Figure 4 This is a schematic diagram of the first smoke-generating pipe structure of this utility model; Figure 5 This is a diagram showing the insertion and mating of the first smoke-generating tube and the second smoke-generating tube of this utility model.

[0021] Figure label: 1. Power unit; 1.1. Gasoline blower; 1.2. Shoulder strap; 1.3. Handle throttle; 1.4. Air outlet pipe; 2. Smoke chamber; 2.1. First smoke pipe; 2.2. Second smoke pipe; 2.3. Plastic inner shell; 2.4. Raised strip; 2.5. Annular protrusion; 3. Connecting hose; 4. Check valve; 5. Smoke cake; 6. Handle; 7. Filter screen; 8. Hook. Detailed Implementation

[0022] like Figures 1-5 As shown, this utility model discloses an exhaust duct smoke leakage detection device, including a power unit 1, a smoke generating chamber 2 and a connecting hose 3. The smoke generating chamber 2 is connected between the power unit 1 and the connecting hose 3. The power unit 1 is used to blow air into the smoke generating chamber 2 to transport the smoke generated in the smoke generating chamber 2 to the connecting hose 3. The connecting hose 3 is used to connect to the check valve 4 on the exhaust duct to transport the smoke into the exhaust duct.

[0023] The power unit 1 is a handheld blower. In this embodiment, a single-barrel, air-cooled, four-stroke gasoline blower 1.1 is preferred. The gasoline blower 1.1 has a power of 2600W, a speed of 10.7r / min, and a maximum air volume of 1150m³ / h. The blower has a shoulder strap 1.2 for single-person transport, and the wind speed is controlled by the throttle 1.3 on the handle 6. It has an 8cm diameter plastic air outlet pipe 1.4. By selecting the portable gasoline blower 1.1, workers can carry it up and down stairs by themselves, making transportation more convenient. Moreover, it does not use electric power, making it more suitable for use on engineering sites.

[0024] The smoke chamber 2 is used to hold the smoke generated by the smoke pellet 5. It includes a first smoke pipe 2.1 and a second smoke pipe 2.2. The first smoke pipe 2.1 and the second smoke pipe 2.2 are detachably connected by a plug-in connection. The first smoke pipe 2.1 is connected to the connecting hose 3, and the second smoke pipe 2.2 is connected to the exhaust pipe 1.4 of the power unit 1. In use, the operator ignites the smoke pellet 5 and puts it into the first smoke pipe 2.1. Then, the operator quickly plugs the first smoke pipe 2.1 and the second smoke pipe 2.2 into the connection and starts the gasoline blower 1.1 to deliver the smoke in the smoke chamber 2 to the exhaust duct through the connecting hose 3 for testing.

[0025] The first smoke-generating pipe 2.1 and the second smoke-generating pipe 2.2 are made of stainless steel round pipes. The second smoke-generating pipe 2.2 has one large end and one small end. The large end connects to the first smoke-generating pipe 2.1, and the small end connects to the air outlet pipe 1.4. The first smoke-generating pipe 2.1 is inserted into the second smoke-generating pipe 2.2. A plastic inner shell 2.3 is fixed to the inner wall of the insertion end of the second smoke-generating pipe 2.2. Protrusions 2.4 are evenly spaced on the inner wall of the plastic inner shell 2.3 at the same horizontal line. An outwardly convex annular protrusion 2.5 is formed on the outer wall of the first smoke-generating pipe 2.1. The first smoke-generating pipe 2.1 is inserted into the second smoke-generating pipe 2.2, and the annular protrusion 2.5 protrudes from the protrusions 2.4. The outer side of 4 is pushed to the inner side of the protrusion 2.4 to achieve a snap-fit ​​engagement. Since the plastic inner shell 2.3 and the protrusion 2.4 are made of plastic and have a certain degree of elasticity, when the first smoke tube 2.1 is inserted into the second smoke tube 2.2, forcefully connecting the first smoke tube 2.1 and the second smoke tube 2.2 can push the annular protrusion 2.5 from the outer side of the protrusion 2.4 to the inner side of the protrusion 2.4 to achieve a snap-fit ​​engagement. When disassembling, forcefully pull the first smoke tube 2.1 out of the second smoke tube 2.2, thereby achieving quick installation and disassembly, facilitating installation, and preventing the first smoke tube 2.1 and the second smoke tube 2.2 from detaching during operation, causing smoke leakage.

[0026] In addition, the surface of the annular protrusion 2.5 is set as an arc surface, so that the annular protrusion 2.5 can pass through the convex strip 2.4 to insert the first smoke tube 2.1 into the second smoke tube 2.2.

[0027] Furthermore, a handle 6 is installed on the outer wall of the first smoke-generating pipe 2.1 for easy operation; a filter screen 7 is detachably installed at the air outlet end of the first smoke-generating pipe 2.1, and a hook 8 is provided on the filter screen 7. The hook 8 hooks onto the end of the first smoke-generating pipe 2.1, so that the filter screen 7 is detachably connected to the first smoke-generating pipe 2.1. By setting the filter screen 7, the residue generated by the smoke cake 5 can be prevented from being blown into the exhaust duct.

[0028] In this embodiment, the connecting hose 3 is preferably made of aluminum exhaust hose, which is resistant to high temperature and has an adjustable shape and angle, making it easy to adjust on-site. The connecting hose 3 and the first smoke-generating pipe 2.1 are fixed by plug-in fitting with clamps. The clamps can be existing pipe clamp components, which will not be described in detail in this application. The connecting hose 3 and the first smoke-generating pipe 2.1 can also be connected and fixed by plug-in fitting with tape wrapping and sealing connection, which has better sealing performance than pipe clamp connection.

[0029] In this embodiment, the connecting hose 3 is directly sleeved on the check valve and then fixed with adhesive tape.

[0030] The exhaust pipe of the power unit 1 and the second smoke-generating pipe 2.2 are connected by a plug-in joint and a sealing method with tape wrapping, which provides better sealing, is convenient to install and disassemble, and is more suitable for on-site operation.

[0031] The operation steps are as follows: The testing and inspection must be carried out on the first floor. Before the test, all floor check valves 4 must be installed in place. A WeChat group chat must be established in advance to facilitate timely feedback of smoke leakage information and execution of various instructions such as inspection, recording, and relocation. Inspection personnel on each floor should be in place, with one person on every two floors observing the smoke leakage. After all devices are in place, connect the connecting hose 3 to the check valve 4 and the first smoke generating pipe 2.1, and connect the second smoke generating pipe 2.2 to the exhaust pipe. After igniting the smoke cake 5, quickly connect the first smoke generating pipe 2.1 and the second smoke generating pipe 2.2, turn on the power unit 1, and send the smoke generated by the smoke cake 5 from the smoke generating chamber 2 to the exhaust duct. Personnel on each floor should observe the smoke leakage and send the exhaust duct inspection video to the group chat for subsequent summary and recording, and to quickly find the leak point for accurate repair.

[0032] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A smoke leakage detection device for an exhaust duct, characterized in that, It includes a power unit (1), a smoke chamber (2), and a connecting hose (3). The smoke chamber (2) is connected between the power unit (1) and the connecting hose (3). The power unit (1) is used to blow air into the smoke chamber (2) to transport the smoke generated in the smoke chamber (2) to the connecting hose (3). The connecting hose (3) is used to connect to a check valve (4) on the exhaust duct to transport the smoke into the exhaust duct. The smoke chamber (2) includes a first smoke pipe (2.1) and a second smoke pipe (2.2). The first smoke pipe (2.1) and the second smoke pipe (2.2) are detachably connected by a plug-in connection. The first smoke pipe (2.1) is connected to a connecting hose (3), and the second smoke pipe (2.2) is connected to a power unit (1).

2. The exhaust duct smoke leakage detection device according to claim 1, characterized in that, The first smoke-generating tube (2.1) is inserted into the second smoke-generating tube (2.2).

3. The exhaust duct smoke leakage detection device according to claim 2, characterized in that, A plastic inner shell (2.3) is fixed on the inner wall of the insertion end of the second smoke-generating tube (2.2). The inner wall of the plastic inner shell (2.3) is fixed with protrusions (2.4) at equal intervals on the same horizontal line. The outer wall of the first smoke-generating tube (2.1) is formed with an outwardly protruding annular protrusion (2.5). The first smoke-generating tube (2.1) is inserted into the second smoke-generating tube (2.2). The annular protrusion (2.5) is pushed from the outside of the protrusion (2.4) to the inside of the protrusion (2.4) to achieve a snap-fit ​​engagement.

4. The exhaust duct smoke leakage detection device according to claim 3, characterized in that, The surface of the annular protrusion (2.5) is an arc surface.

5. The exhaust duct smoke leakage detection device according to claim 1, characterized in that, The connecting hose (3) and the first smoke-generating pipe (2.1) are fixed by a plug-in clamp; or by a plug-in sealing tape connection.

6. The exhaust duct smoke leakage detection device according to claim 1, characterized in that, The air outlet pipe (1.4) of the power unit (1) and the second smoke-generating pipe (2.2) are fixed by a plug-in and adhesive tape sealing connection.

7. The exhaust duct smoke leakage detection device according to claim 1, characterized in that, The first smoke-generating pipe (2.1) has a detachable filter screen (7) installed at its outlet end.

8. The exhaust duct smoke leakage detection device according to claim 7, characterized in that, The power unit (1) is a gasoline blower (1.1).

9. The exhaust duct smoke leakage detection device according to claim 1, characterized in that, The first smoke-generating tube (2.1) and the second smoke-generating tube (2.2) are made of stainless steel round tubes.

10. The exhaust duct smoke leakage detection device according to claim 1, characterized in that, The connecting hose (3) is an aluminum exhaust hose.

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