Flame detection device and aero-engine test run test system
By introducing liquid cooling and gas cooling systems into the flame detection device to cool the observation tube, the sensitivity problem of flame detection in high-temperature environments was solved, ensuring the safety and accuracy of aero-engine test runs.
Patent Information
- Application Number
- CN202520262413.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-18
AI Technical Summary
During aero-engine test runs, existing flame detection devices struggle to achieve high-sensitivity flame detection in high-temperature environments, posing a risk of fire or explosion.
The system employs an ultraviolet flame detector body, an observation tube, and a cooling system, including a liquid cooling system and an air cooling system. The observation tube is cooled by the liquid cooling system and the air cooling system to ensure that the ultraviolet flame detector can work normally in a high-temperature environment.
It achieves highly sensitive flame detection in high-temperature environments, preventing fires or explosions and ensuring the safety and accuracy of test runs.
Smart Images
Figure CN223597210U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to aero-engine test technical field, specifically, a kind of flame detection device and aero-engine test system. BACKGROUND
[0002] With the continuous development of aero-engine, not only its thrust is improved, but also reliability, life, adaptability to the surrounding environment are also important. When a new technology is developed or the existing engine is updated, aero-engine test must be carried out. Through the test of engine, performance indicators that cannot be obtained by theoretical calculation can be obtained, and the influence of external environment on main technical parameters of engine can be obtained.
[0003] During the aero-engine test, high-sensitivity flame in the engine cabin needs to be detected in real time to avoid fire or explosion. Since the cabin is a high-temperature environment, the flame detection device also needs to be high-temperature resistant. Therefore, how to meet the high-sensitivity detection of flame under high temperature becomes a real demand for flame detection in aero-engine test. SUMMARY
[0004] The following gives a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all contemplated aspects, and neither is it intended to identify key or critical elements of all aspects nor to delineate the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form to sequence the more detailed description given later.
[0005] The utility model aims at providing a kind of flame detection device, it can satisfy high-sensitivity detection of flame under high temperature.
[0006] The utility model also aims at providing a kind of aero-engine test system, it can satisfy high-sensitivity detection of flame under high temperature.
[0007] The embodiment of the utility model can be realized by the following mode:
[0008] A kind of flame detection device, the flame detection device includes:
[0009] The ultraviolet flame detector body has detection bulb, and the detection bulb is used to receive the light emitted by flame;
[0010] Observation tube is arranged on the side of detection bulb, and the observation tube is used to pass through the light;And
[0011] The cooling system comprises a liquid cooling system and a gas cooling system, both of which are used to cool the observation tube to avoid the ultraviolet flame detector body from being affected by high temperature.
[0012] Optionally, the liquid cooling system comprises a cooling tube sleeved outside the observation tube, the cooling tube having a cooling channel for cooling liquid to flow through, so as to liquid cool the observation tube by the cooling liquid in the cooling channel.
[0013] Optionally, the cooling tube has a cooling liquid inlet and a cooling liquid outlet at its two axial ends respectively, both of which are in communication with the cooling channel to allow cooling liquid to enter or exit the cooling channel; the cooling liquid inlet is located at one end of the cooling tube close to the ultraviolet flame detector body, and the cooling liquid outlet is located at one end of the cooling tube away from the ultraviolet flame detector body.
[0014] Optionally, the liquid cooling system further comprises a circulating pump, an inlet pipe and an outlet pipe, both ends of the inlet pipe being in communication with the circulating pump and the cooling liquid inlet respectively, both ends of the outlet pipe being in communication with the circulating pump and the cooling liquid outlet respectively; the circulating pump, the inlet pipe, the cooling tube and the outlet pipe form a liquid flow loop.
[0015] Optionally, the pipe wall of the cooling tube is a hollow structure having a tubular cavity, and the cooling channel is the tubular cavity.
[0016] Optionally, the cooling channel is a spiral channel arranged around the axis of the cooling tube.
[0017] Optionally, the gas cooling system comprises a gas tank and a gas pipe, the observation tube is provided with an air inlet, and both ends of the gas pipe are in communication with the gas tank and the air inlet respectively to allow cooling gas in the gas tank to enter the inside of the observation tube through the air inlet.
[0018] Optionally, the air inlet is arranged at one end of the observation tube close to the ultraviolet flame detector body.
[0019] Optionally, the flame detection device further comprises an amplifier and a data acquisition card, the amplifier is electrically connected with the ultraviolet flame detector body to acquire the detection signal output by the ultraviolet flame detector body and is used to amplify the detection signal, and the data acquisition card is electrically connected with the amplifier to acquire the signal amplified by the amplifier.
[0020] An aero-engine test system, comprising the above flame detection device.
[0021] The embodiment of the utility model provides a flame detection device and aero-engine test system's beneficial effect includes:
[0022] The embodiment of the utility model provides a kind of flame detection device, it includes ultraviolet flame detector body, observation tube and cooling system, ultraviolet flame detector body has detection bulb, detection bulb is used to receive the light emitted by flame, to carry out flame detection.Observation tube is arranged in the front side of bulb, for so the light emitted by flame is shot towards detection bulb by observation tube, guarantee the effective detection of flame.Cooling system includes liquid cooling system and gas cooling system, liquid cooling system and gas cooling system are used to cool observation tube, to effectively guarantee cooling effect, avoid ultraviolet flame detector body is influenced by high temperature, in other words, make ultraviolet flame detector can also effectively carry out flame detection in high temperature environment.
[0023] The embodiment of the utility model further provides a kind of aero-engine test system, it includes the flame detection device described above.As the aero-engine test system described above includes the flame detection device described above, can also have the beneficial effect that can effectively carry out flame detection in high temperature environment, guarantee test accurate. BRIEF DESCRIPTION OF DRAWINGS
[0024] The above features and advantages of the utility model can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, each component is not necessarily drawn to scale, and components having similar related properties or features can have the same or similar reference numerals.
[0025] Figure 1 The structure schematic diagram of the flame detection device provided according to an aspect of the utility model is shown;
[0026] Figure 2 The cross-sectional structure schematic diagram of cooling pipe in the flame detection device provided according to an aspect of the utility model is shown.
[0027] Reference signs:
[0028] 100-flame detection device;110-ultraviolet flame detector body;111-detection bulb;121-amplifier;122-data acquisition card;130-observation tube;131-inlet;140-cooling system;141-liquid cooling system;142-cooling pipe;143-cooling channel;144-cooling liquid inlet;145-cooling liquid outlet;146-circulating pump;147-liquid inlet pipe;148-liquid outlet pipe;149-gas cooling system;151-gas tank;152-gas pipe. DETAILED DESCRIPTION
[0029] The utility model will be described in detail below in combination with the drawings and specific embodiments. Note that the aspects described below in combination with the drawings and specific embodiments are only exemplary and should not be understood as limiting the scope of protection of the utility model.
[0030] In the description of the utility model, it should be noted that if the terms "upper", "lower", "inner", "outer", "vertical" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, and not the orientation or positional relationship of the device or element indicated or implied, therefore, it cannot be understood as a limitation on the utility model.
[0031] At the same time, it should be noted that if the terms "first", "second" and the like are used only for differentiation, they cannot be understood as indicating or implying relative importance.
[0032] In the description of the utility model, it should also be noted that unless otherwise specified or limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, integrally connected or detachably connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, or the communication between two elements, etc. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0033] Figure 1 The structure diagram of the flame detection device 100 provided by the embodiment is shown. Please refer to Figure 1 The embodiment provides a flame detection device 100, and also provides an aero-engine test system (not shown in the figure).
[0034] The aero-engine test system includes the above-mentioned flame detection device 100, and also includes the detection components required for traditional test, etc. In the test, the flame is detected in real time by the flame detection device 100.
[0035] The flame detection device 100 comprises an ultraviolet flame detector body 110, an observation tube 130 and a cooling system 140. The ultraviolet flame detector body 110 has a detection bulb 111 for receiving light emitted by a flame so as to detect the flame. The observation tube 130 is arranged in front of the bulb for the light emitted by the flame to pass through the observation tube 130 and reach the detection bulb 111, thereby ensuring effective detection of the flame. The cooling system 140 comprises a liquid cooling system 141 and a gas cooling system 149, both of which are used to cool the observation tube 130, thereby effectively ensuring the cooling effect and avoiding the influence of high temperature on the ultraviolet flame detector body 110. In other words, the ultraviolet flame detector can also effectively detect the flame in a high-temperature environment.
[0036] The flame detection device 100 provided in the embodiment will be further described below.
[0037] Please continue to refer to Figure 1 In the embodiment, the inner surface of the observation tube 130 is polished by a mirror surface, thereby greatly enhancing the flame detection range and ensuring the flame detection sensitivity. Further, the flame detection device 100 further comprises an amplifier 121 and a data acquisition card 122. The amplifier 121 is connected with the ultraviolet flame detector body 110, thereby obtaining the detection signal output by the ultraviolet flame detector body 110 and amplifying the detection signal. The data acquisition card 122 is electrically connected with the amplifier 121, thereby obtaining the detection signal amplified by the amplifier 121, thereby helping to more sensitively detect the flame signal and further discover the flame earlier to avoid fire or explosion caused by fire. Specifically, the amplifier 121 can be a controller with amplification function or the like.
[0038] Figure 2 A cross-sectional structure diagram of the cooling tube 142 in the flame detection device 100 provided in the embodiment is shown. Please refer to Figure 1 and Figure 2 In the embodiment, the liquid cooling system 141 comprises a cooling tube 142, which is sleeved outside the observation tube 130. The cooling tube 142 has a cooling channel 143 for cooling liquid to flow, so as to liquid cool the observation tube 130 by the cooling liquid in the cooling channel 143. Specifically, the cooling tube 142 is a tubular structure surrounded by an annular tube wall, and the observation tube 130 is inserted into the cooling tube 142, i.e. the tube wall surrounds the observation tube 130 outside. The cooling liquid can be cooling water or other more efficient cooling liquid.
[0039] Optionally, the cooling pipe 142 is a hollow structure, so that a tubular cavity is formed in the wall of the cooling pipe 142, which can be used as the cooling channel 143 of the cooling pipe 142, and the cooling channel 143 is arranged around the observation pipe 130 to cool the observation pipe 130. It can be understood that in other embodiments, the structure of the cooling channel 143 can be arranged according to requirements, for example, the cooling channel 143 is arranged as a spiral channel arranged around the axis of the cooling pipe 142, so as to prolong the residence time of the cooling liquid in the cooling channel 143 and improve the cooling effect.
[0040] Further, the cooling pipe 142 has a cooling liquid inlet 144 and a cooling liquid outlet 145 at the two axial ends respectively, and the cooling liquid inlet 144 and the cooling liquid outlet 145 are in communication with the cooling channel 143. During the cooling process, the cooling liquid enters the cooling channel 143 from the cooling liquid inlet 144, flows in the cooling channel 143 and exchanges heat with the observation pipe 130 to achieve cooling, and then exits the cooling channel 143 from the cooling liquid outlet 145, so as to realize the entry and exit of the cooling liquid in the cooling channel 143. At the same time, the cooling liquid inlet 144 is located at one end of the cooling pipe 142 close to the ultraviolet flame detector body 110, and correspondingly, the cooling liquid outlet 145 is located at one end of the cooling pipe 142 away from the ultraviolet flame detector body 110, so as to ensure the cooling effect near the ultraviolet flame detector body 110 and avoid the influence of high temperature on the ultraviolet flame detector body 110.
[0041] Further, the cooling system further comprises a circulating pump 146, a liquid inlet pipe 147 and a liquid outlet pipe 148. The two ends of the liquid inlet pipe 147 are in communication with the circulating pump 146 and the cooling liquid inlet 144 respectively, and the two ends of the liquid outlet pipe 148 are in communication with the circulating pump 146 and the cooling liquid outlet 145 respectively, so that the circulating pump 146, the liquid inlet pipe 147, the cooling pipe 142 and the liquid outlet pipe 148 form a liquid flow loop, and the cooling liquid flows along the liquid flow loop under the pumping action of the circulating pump 146.
[0042] In this embodiment, the gas cooling system 149 comprises a gas tank 151 and a gas pipe 152, and the observation pipe 130 is provided with an air inlet 131, and the two ends of the gas pipe 152 are in communication with the gas tank 151 and the air inlet 131 respectively, so that the cooling gas in the gas tank 151 can be introduced into the observation pipe 130 through the air inlet 131. Specifically, the observation pipe 130 is a tubular structure with a through hole in the middle, and the air inlet 131 is arranged on the wall of the observation pipe 130 and is in communication with the through hole in the observation pipe 130, so that the cooling gas in the gas tank 151 can enter the observation pipe 130 through the gas pipe 152 and the air inlet 131.
[0043] Further, the air inlet 131 is arranged at one end of the observation tube 130 close to the ultraviolet flame detector body 110. Specifically, the observation tube 130 is arranged in the cooling tube 142, and both ends of the observation tube 130 extend out of both ends of the cooling tube 142. The air inlet 131 is arranged at the part of the observation tube 130 outside the cooling tube 142, and this part is closer to the ultraviolet flame detector body 110 than the cooling tube 142.
[0044] The embodiment of the utility model provides the flame detection device 100 and aero-engine test system, through setting up liquid cooling system 141 and air cooling system 149 to carry out cooling to observation tube 130 simultaneously, thereby guaranteeing that ultraviolet flame detector body 110 works stably in high temperature environment, improve product service life, and liquid cooling system 141 simple structure is easy to disassemble, and the cost is lower. Moreover, the signal detected by the ultraviolet flame detector body 110 is amplified by the amplifier 121 and finally outputs the signal to the data acquisition card 122, which can realize higher sensitive monitoring of the flame signal, can discover the flame earlier, and avoid fire or explosion caused by fire.
[0045] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A flame detection apparatus, characterized by, The flame detection device comprises: an ultraviolet flame detector body having a detection bulb for receiving light emitted by a flame; a viewing tube arranged on one side of the detection bulb and configured to transmit the light; and a cooling system comprising a liquid cooling system and a gas cooling system, both of which are configured to cool the viewing tube to prevent the ultraviolet flame detector body from being affected by high temperature.
2. The flame detection device according to claim 1, wherein the liquid cooling system comprises a cooling tube sleeved on the viewing tube, the cooling tube having a cooling channel for cooling liquid to flow through, so as to cool the viewing tube by the cooling liquid in the cooling channel.
3. The flame detection device according to claim 2, wherein the cooling tube has a cooling liquid inlet and a cooling liquid outlet at two axial ends thereof, both of which are in communication with the cooling channel to allow the cooling liquid to flow in and out of the cooling channel; the cooling liquid inlet is located at one end of the cooling tube close to the ultraviolet flame detector body, and the cooling liquid outlet is located at one end of the cooling tube away from the ultraviolet flame detector body.
4. The flame detection device according to claim 3, wherein the liquid cooling system further comprises a circulating pump, an inlet pipe and an outlet pipe, both ends of the inlet pipe being in communication with the circulating pump and the cooling liquid inlet, and both ends of the outlet pipe being in communication with the circulating pump and the cooling liquid outlet; the circulating pump, the inlet pipe, the cooling tube and the outlet pipe form a liquid flow loop.
5. The flame detection device according to claim 2, wherein the tube wall of the cooling tube is a hollow structure having a tubular cavity, and the cooling channel is the tubular cavity.
6. The flame detection device according to claim 2, wherein the cooling channel is a spiral channel arranged around the axis of the cooling tube.
7. The flame detection device according to claim 1, wherein the gas cooling system comprises a gas tank and a gas pipe, the viewing tube is provided with a gas inlet, and both ends of the gas pipe are in communication with the gas tank and the gas inlet to allow the cooling gas in the gas tank to flow into the interior of the viewing tube through the gas inlet.
8. The flame detection device according to claim 7, wherein the gas inlet is arranged at one end of the viewing tube close to the ultraviolet flame detector body.
9. The flame detection device according to claim 1, wherein the flame detection device further comprises an amplifier and a data acquisition card, the amplifier is electrically connected to the ultraviolet flame detector body to obtain a detection signal output by the ultraviolet flame detector body and amplify the detection signal, and the data acquisition card is electrically connected to the amplifier to obtain the signal amplified by the amplifier.
10. An aero-engine test system, comprising The aero-engine test system comprises the flame detection device according to any one of claims 1-9.