Flue leak detection device
By combining a venturi tube structure with a tracer, rapid leak detection can be achieved without disassembling the flue, solving the problem of low efficiency in existing flue leak detection and simplifying the maintenance process.
Patent Information
- Application Number
- CN202520320323.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing methods for detecting leaks in flues are inefficient, and there is a need for a device that can quickly detect leaks without dismantling the flue.
The flue leak detection device, which adopts a Venturi tube structure, connects the tracer container to the narrow part of the tube body. It uses the Venturi effect to draw the tracer into the tube body and sends it into the flue through the fan system of the range hood, thus achieving leak detection without disassembling the flue.
It improves the efficiency of flue leak detection, enables visual detection of flue leaks, and simplifies the maintenance process.
Smart Images
Figure CN223637055U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of kitchen utensils, in particular to a flue leak detection device. BACKGROUND
[0002] The range hood is a kind of kitchen appliance, can quickly export the oil fume generated in the kitchen cooking process, realizes the purpose of purifying kitchen environment;Range hood is installed above kitchen stove, can quickly remove the harmful oil fume generated in the cooking process, and export outdoor, along with people's living standard unceasingly improves, range hood has become the indispensable household appliance in the kitchen.
[0003] When the range hood in the resident home appears the condition of running smoke, the trouble shooting needs to check whether the flue is damaged, the maintenance technician needs to check whether the flue of range hood is damaged when troubleshooting the reason of running smoke, the existing flue leak detection method is mainly to disassemble the flue, and carefully observe whether there is damage.
[0004] Traditional manual removal method is very troublesome to operate, and the efficiency is low, and a device that can quickly leak without disassembling the flue is needed, that is, the device that simulates smoke and visualizes the oil fume escaping in the flue. UTILITY MODEL CONTENTS
[0005] The utility model solves the technical problem to overcome the low efficiency defect of the flue leak detection method of prior art, and provides a flue leak detection device.
[0006] The utility model solves the above technical problem by the following technical scheme:
[0007] A flue leak detection device, comprising: a pipe body and a tracer containing part;
[0008] The pipe body has an air inlet and an air outlet, the air outlet is used for communicating with the air inlet of the range hood, the pipe body includes wide parts arranged at both ends and a narrow part arranged between the two wide parts, and the air inlet and the air outlet are arranged at the two wide parts respectively;
[0009] The inside of the tracer containing part communicates with the inside of the narrow part of the pipe body.
[0010] In the scheme, the pipe body of the flue leak detection device is formed into the structure of wide at both ends and narrow in the middle, that is, the venturi structure, and the inside of the tracer containing part communicates with the inside of the narrow part of the pipe body, due to the narrow tube effect of the venturi, when the gas passes through the pipe body, the tracer in the tracer containing part is sucked into the pipe body, flows out from the air outlet together with the gas, and then enters the inside of the range hood, to detect the flue in the range hood, that is, without disassembling the flue, the efficiency of flue leak detection is improved.
[0011] Preferably, the tracer mixing device comprises an oil pan and a smoke pipe.
[0012] The oil pan is sleeved on the narrow part, and the oil pan comprises a bottom plate and a baffle, the baffle is arranged on the circumferential side of the bottom plate and cooperates with the bottom plate to form an oil storage space, the oil storage space is used to store the tracer; the first end of the smoke pipe is communicated with the narrow part, and the second end of the smoke pipe is communicated with the oil storage space.
[0013] In this scheme, the oil pan is sleeved on the narrow part, which can save the space occupied by the flue leak detection device, and in addition, the arrangement of the oil pan can make the oil storage space as large as possible to store as much tracer as possible, thereby improving the flue leak detection efficiency. The first end of the smoke pipe is communicated with the narrow part, and due to the effect of the narrow tube of the Venturi tube, the tracer is quickly sucked into the pipe body.
[0014] Preferably, the wide part is funnel-shaped, and the narrower end of the wide part is connected with the narrow part.
[0015] In this scheme, the connection mode of the wide part and the narrow part can make the pressure smaller when the fluid flows through the narrow part (throat), and the flow rate of the fluid is increased, thereby improving the flue leak detection efficiency.
[0016] Preferably, the two wide parts are symmetrical with respect to the narrow part.
[0017] In this scheme, the above arrangement makes the Venturi tube more beautiful, and the air inlet of the Venturi tube is larger, which can quickly send the tracer into the flue.
[0018] Preferably, the first end of the smoke pipe is connected to the end of the narrow part closer to the air outlet.
[0019] In this scheme, the above arrangement makes the tracer closer to the air outlet, and thus closer to the flue, thereby improving the flue leak detection efficiency.
[0020] Preferably, the second end of the smoke pipe is connected to a position abutting the bottom plate.
[0021] In this scheme, the above arrangement can make the smoke pipe closer to the tracer in the oil pan, which can increase the efficiency of the tracer entering the flue.
[0022] Preferably, the outer circumferential side of the air outlet is provided with a connecting flange.
[0023] In this scheme, the above flange plays a connecting role.
[0024] Preferably, the flue leak detection device further comprises a smoke gathering device, the smoke gathering device is tubular, one end of the smoke gathering device is used to connect the air inlet of the extractor hood, and the other end is connected to the air outlet.
[0025] In this scheme, the smoke gathering device is used to prevent the tracer from leaking out of the Venturi tube to places other than the extractor hood and the flue.
[0026] Preferably, the smoke gathering device comprises a plurality of supporting ribs and a wind and rainproof cloth, the plurality of supporting ribs are uniformly arranged, and the wind and rainproof cloth is arranged outside the plurality of supporting ribs.
[0027] In the scheme, the supporting ribs and the wind and rainproof cloth are beneficial to prevent the smoke gathering device from being disturbed by the environment, and also strengthen the stability of the smoke gathering device.
[0028] Preferably, the smoke gathering device is funnel-shaped, one end of the smoke gathering device is a large opening, and the other end of the smoke gathering device is a small opening.
[0029] In the scheme, the shape of the smoke gathering device is used to match the air inlet and the air outlet.
[0030] The positive progress effect of the utility model lies in that the pipe body of the flue leak detection device is formed into a Venturi tube structure with wide two ends and narrow middle, and the inside of the tracer containing part is communicated with the inside of the narrow part of the pipe body, due to the narrow tube effect of the Venturi tube, when the gas passes through the pipe body, the tracer of the tracer containing part is sucked into the pipe body, flows out from the air outlet together with the gas, and then enters the inside of the range hood, so that the flue inside the range hood is detected, that is, the flue does not need to be disassembled, and the efficiency of flue leak detection is improved. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 It is a structural schematic view of the flue leak detection device according to an embodiment of the utility model.
[0032] Figure 2 It is a structural schematic view of the pipe body according to an embodiment of the utility model.
[0033] Figure 3 It is a longitudinal sectional view of the pipe body. Figure 2
[0034] Figure 4 It is a structural schematic view of the smoke gathering device according to an embodiment of the utility model.
[0035] Figure 5 It is another structural schematic view of the smoke gathering device according to an embodiment of the utility model.
[0036] Explanation of reference signs:
[0037] Flue leak detection device 500
[0038] Pipe body 100
[0039] Air inlet 110
[0040] Air outlet 120
[0041] Wide part 130
[0042] Narrow section 140
[0043] Flange 150
[0044] Tracer container 200
[0045] Oil tray 210
[0046] 220 smoke pipe
[0047] Smoke collection device 300
[0048] Support bar 310
[0049] Windproof and rainproof fabric 320
[0050] Large mouth 330
[0051] Small mouth 340
[0052] 400 range hood
[0053] 410 flue Detailed Implementation
[0054] The present invention will be described more clearly and completely below with reference to the accompanying drawings, but this does not limit the scope of the present invention to the present invention.
[0055] like Figures 1 to 5 As shown, this embodiment provides a flue leak detection device 500, which includes: a pipe body 100 and a tracer container 200; the pipe body 100 has an air inlet 110 and an air outlet 120, the air outlet 120 is used to communicate with the air intake of a range hood 400, the pipe body 100 includes a wide portion 130 disposed at both ends thereon and a narrow portion 140 disposed between the two wide portions 130, the air inlet 110 and the air outlet 120 are respectively disposed in the two wide portions 130; the interior of the tracer container 200 communicates with the interior of the narrow portion 140 of the pipe body 100.
[0056] In this embodiment, the tube body 100 of the flue leak detection device 500 is formed into a structure that is wide at both ends and narrow in the middle, that is, a Venturi tube structure. The interior of the tracer container 200 is connected to the interior of the narrow part 140 of the tube body 100. As a result, when the gas passes through the tube body 100, due to the narrow tube effect of the Venturi tube, the tracer inside the tracer container 200 will be drawn into the tube body 100 and flow out from the gas outlet 120 along with the gas. Then it enters the interior of the range hood to detect leaks in the flue 410 inside the range hood. In other words, there is no need to disassemble the flue 410, which improves the efficiency of flue 410 leak detection.
[0057] It should be noted that the tracer includes a fluorescent tracer, by adding the fluorescent tracer to the oil product for smoking, the oil product is placed in the oil pan, the pipe body 100 is connected to the air inlet of the range hood 400, and the oil product is sucked into the pipe body 100 and diffused into the flue 410 of the range hood 400 by the suction of the range hood 100; in addition, the mixture of the tracer and the oil product is sucked into the flue 410 of the range hood 400 by using the fan system of the range hood 400.
[0058] Reference Figures 1 to 3 It should be understood that the tracer mixing device includes an oil pan 210 and a smoke pipe 220; the oil pan 210 is sleeved on the narrow part 140, the oil pan 210 includes a bottom plate and a baffle, the baffle is arranged around the side of the bottom plate and cooperates with the bottom plate to form an oil containing space, and the oil containing space contains the above-mentioned oil product for smoking; the first end of the smoke pipe 220 is communicated with the narrow part 140, and the second end of the smoke pipe 220 is communicated with the oil containing space.
[0059] In the present embodiment, the oil pan 210 sleeved on the narrow part 140 can save the space occupied by the flue leakage detection device 500, and in addition, the arrangement of the above-mentioned oil pan 210 can make the oil containing space as large as possible to contain as much as possible of the above-mentioned oil product for smoking, so as to improve the flue 410 leakage detection efficiency. The first end of the smoke pipe 220 is communicated with the narrow part 140, and due to the effect of the narrow tube of the Venturi tube, the oil product containing the tracer is quickly sucked into the pipe body 100.
[0060] It should be noted that the hollow radius of the narrow part 140 decreases first and then increases from one end of the narrow part 140 to the other end; in addition, the tracer and the edible oil are mixed in a magnetic stirrer at a weight ratio of 1:1000 for half an hour until they are evenly mixed, and the mixture is used as the smoking raw material, and the smoking raw material is placed in the oil pan 210.
[0061] Reference Figures 1 to 3 It should be understood that the wide part 130 is formed in a funnel shape, and the narrower end of the wide part 130 is connected with the narrow part 140.
[0062] In the present embodiment, the connection mode of the above-mentioned wide part 130 and the narrow part 140, when the fluid flows through the narrow part 140 (throat), the pressure will decrease, and the fluid flow rate will increase, so as to improve the leakage detection efficiency of the flue leakage detection device 500.
[0063] It should be noted that the fan system of the range hood 400 itself is used as an external power source, and when the gas passes through the throat, a strong negative pressure or even a vacuum is formed, so that the mixture of the tracer and the edible oil outside is sucked into the pipe body 100 and is atomized into particles with extremely small particle size, so as to be fully mixed with air and sent into the flue 410.
[0064] Reference Figure 3It is to be understood that the two wide portions 130 are symmetrical with respect to the narrow portion 140.
[0065] In the present embodiment, the above arrangement makes the pipe body 100 more beautiful and the air inlet of the pipe body 100 larger, so that the tracer can be quickly sent into the flue 410.
[0066] Reference Figure 2 It is to be understood that the first end of the smoke pipe 220 is connected to the end of the narrow portion 140 closer to the air outlet 120.
[0067] In the present embodiment, the above arrangement makes the tracer closer to the air outlet 120 and thus closer to the flue 410, so as to improve the efficiency of leak detection of the flue 410.
[0068] Reference Figures 1 to 3 It is to be understood that the second end of the smoke pipe 220 is connected to the position abutting against the bottom plate.
[0069] In the present embodiment, the above arrangement makes the smoke pipe 220 closer to the tracer in the oil pan 210, which can accelerate the efficiency of the tracer entering the flue 410.
[0070] Reference Figure 2 It is to be understood that the air outlet 120 is provided with a connecting flange 150 on the outer circumferential side.
[0071] In the present embodiment, the above flange 150 serves as a connecting function.
[0072] It is to be noted that the flange 150 is used to connect the pipe body 100 to the smoke gathering device 300.
[0073] Reference Figures 4 to 5 It is to be understood that the flue leak detection device 500 further comprises a smoke gathering device 300, which is tubular, one end of the smoke gathering device 300 is used to connect to the air inlet of the range hood, and the other end is connected to the air outlet 120.
[0074] In the present embodiment, the smoke gathering device 300 is used to prevent the tracer from leaking out of the pipe body 100 to any place other than the range hood 400 and the flue 410.
[0075] Reference Figures 4 to 5 It is to be understood that the smoke gathering device 300 comprises a plurality of support ribs 310 and a wind and rainproof cloth 320, the plurality of support ribs 310 are uniformly arranged, and the wind and rainproof cloth 320 is arranged on the outer side of the plurality of support ribs 310.
[0076] In the present embodiment, the support ribs 310 and the wind and rainproof cloth 320 are beneficial to prevent the smoke gathering device 300 from being disturbed by the environment, and also strengthen the stability of the smoke gathering device 300.
[0077] It should be noted that the wind and rain-proof cloth 320 communicates the suction port of the range hood 400 with the gas outlet 120 of the pipe body 100, the upper end and the lower end of the wind and rain-proof cloth 320 are supported by the support rib with sufficient strength to prevent the cavity from shrinking under negative pressure, and the support rib 310 can be folded for easy storage; in addition, all the connections are strictly sealed to ensure air tightness, and the wind and rain-proof cloth 320 is tied with the range hood 400 by a rope; the wind and rain-proof cloth 320 is made of Gore-Tex fabric and eVent fabric.
[0078] Reference Figures 4 to 5 It should be understood that the smoke gathering device 300 is formed in a funnel shape, one end of the smoke gathering device 300 is a large opening part 330, and the other end of the smoke gathering device 300 is a small opening part 340.
[0079] In this embodiment, the shape of the smoke gathering device 300 is used to adapt to the suction port and the gas outlet 120.
[0080] It should be noted that the large opening part 330 is to ensure that the suction port of the range hood 400 can be wrapped, and the small opening part 340 has four holes corresponding to the four holes on the upper end of the pipe body 100, and the circular cover is locked by a screw after covering the above-mentioned holes.
[0081] In summary, in the smoke flue leak detection device 500 provided in this embodiment: the pipe body 100 of the smoke flue leak detection device 500 is formed into a Venturi tube structure with wide ends and a narrow middle part, and the inside of the tracer containing part 200 is communicated with the inside of the narrow part 140 of the pipe body 100. Due to the narrow tube effect of the Venturi tube, when the gas passes through the pipe body 100, the tracer in the tracer containing part 200 will be sucked into the pipe body 100 and flow out of the gas outlet 120 together with the gas, and then enter the inside of the range hood 400. The smoke flue 410 inside the range hood 400 is detected for leakage, that is, without disassembling the smoke flue 410, the efficiency of the smoke flue leak detection is improved.
[0082] The operation of the smoke flue leak detection device 500 is as follows: the tracer mixed with cooking oil is used as a smoke generating material and is placed in the oil containing tray 210, under the action of the fan system of the range hood 400, the smoke generating material in the oil containing tray 210 is sucked into the pipe body 100 and rapidly atomized and diffused to form oil fume under the action of negative pressure. The oil fume formed in turn passes through the pipe body 100, the smoke gathering device 300 and the suction port of the range hood 400 into the smoke flue 410. When a sufficient amount of oil fume is introduced into the smoke flue 410, a ultraviolet lamp is used to irradiate the outer surface of the whole smoke flue 410 and the objects or walls around it. If the smoke flue 410 is damaged at some place, the oil fume containing the tracer will escape from the damaged place and adhere to the outer wall of the damaged place of the smoke flue 410 and the objects around the smoke flue 410. Under the irradiation of the ultraviolet lamp, fluorescence can be observed, which realizes the visualization of oil fume leakage conveniently.
[0083] In the description of the utility model, need understanding is, the term "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and so on indicate the orientation or position relation of device or element in normal use, just is for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation at any time, with a particular orientation structure and operation, therefore can not be understood as the restriction of the utility model in this aspect.
[0084] Although the above describes the specific implementation of the utility model, but the person skilled in the art should understand, this is just an example, the protection scope of the utility model is defined by the appended claims. The person skilled in the art can make a variety of changes or modifications to these embodiments without departing from the principles and essence of the utility model, but these changes and modifications all fall within the protection scope of the utility model.
Claims
1. A flue leak detection device, characterized in that, It includes: Tube body and tracer container; The pipe body has an air inlet and an air outlet, the air outlet being used to communicate with the air intake of a range hood. The pipe body includes wide portions disposed at both ends and narrow portions disposed between the two wide portions. The air inlet and the air outlet are respectively disposed in the two wide portions. The interior of the tracer container is connected to the interior of the narrow section of the tube.
2. The flue leak detection device as described in claim 1, characterized in that, The tracer container includes an oil tray and a smoke tube; The oil-holding tray is fitted onto the narrow section. The oil-holding tray includes a base plate and a baffle. The baffle surrounds the periphery of the base plate and together with the base plate, forms an oil-holding space. The oil-holding space is used to hold tracers. The first end of the smoke tube is connected to the narrow section, and the second end of the smoke tube is connected to the oil-holding space.
3. The flue leak detection device as described in claim 1, characterized in that, The wide portion is formed in the shape of a funnel, and the narrower end of the wide portion is connected to the narrow portion.
4. The flue leak detection device as described in claim 1, characterized in that, The two wide portions are symmetrical with respect to the narrow portions.
5. The flue leak detection device as described in claim 2, characterized in that, The first end of the flue is connected to the end of the narrow section closer to the air outlet.
6. The flue leak detection device as described in claim 2, characterized in that, The second end of the flue is connected to the position that abuts the base plate.
7. The flue leak detection device as described in claim 1, characterized in that, A connecting flange is provided on the outer periphery of the air outlet.
8. The flue leak detection device as described in claim 1, characterized in that, It also includes a smoke collection device, which is tubular, with one end connected to the air intake of the range hood and the other end connected to the air outlet.
9. The flue leak detection device as described in claim 8, characterized in that, The smoke collection device includes multiple supporting ribs and windproof and rainproof fabric. The multiple supporting ribs are evenly arranged, and the windproof and rainproof fabric is arranged around the outside of the multiple supporting ribs.
10. The flue leak detection device as described in claim 8, characterized in that, The smoke-gathering device is funnel-shaped, with one end having a large opening and the other end having a small opening.