Flame detection system and boiler
By introducing a combination system of air compressor and flow control valve into the flame detection device, the photoelectric sensor can be cleaned efficiently, solving the problems of decreased detection accuracy and high cost caused by dust accumulation in traditional flame detection devices in boilers, and achieving a low-cost and efficient cleaning effect.
Patent Information
- Application Number
- CN202520040774.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Traditional flame detection devices are exposed to high temperature, high humidity and high dust environment in boilers for a long time, which easily accumulates dust and dirt, affecting the accuracy and sensitivity of detection. They also have the problems of large space occupation and high cost.
Multiple flame detection devices are used, each equipped with a base and photocell. A system consisting of an air compressor and a flow control valve is used to clean the photocell with compressed air. Combined with a filter unit and a dust detection alarm unit, efficient cleaning of the photocell is achieved.
It improves the detection efficiency of the flame detection device, reduces energy consumption and costs, and occupies little space while significantly improving the cleaning effect.
Smart Images
Figure CN223726406U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of boiler, especially fire detection system and boiler. BACKGROUND
[0002] In the boiler system, the fire detection device plays a vital role, a burner of a boiler is equipped with multiple fire detection devices, the flame state in the burner can be monitored through the fire detection device, and the safety and stability of the combustion process are ensured. However, due to the harsh operating environment of the boiler, the fire detection device is exposed to the environment of high temperature, high humidity and high dust for a long time, so that dust and dirt are easily accumulated on the surface of the fire detection device, affecting the accuracy and sensitivity of flame detection. The traditional fire detection device not only has the problems of large occupied space and high cost, but also some fire detection devices have poor detection efficiency due to poor cleaning. SUMMARY
[0003] The utility model discloses a kind of fire detection system and boiler, and the occupied space is small, cost is low, cleaning effect is better, improve the detection efficiency of fire detection device.
[0004] To achieve this purpose, the utility model adopts the following technical scheme:
[0005] Fire detection system, comprising:
[0006] Multiple fire detection devices, the fire detection device includes base, and electric eye is installed on the base, the electric eye is used to monitor the flame state of the burner in the boiler, the base is equipped with airflow passage, the outlet end of the airflow passage is opposite to the electric eye;
[0007] Flow regulating valve, the flow regulating valve is selectively detachably connected with any base, the outlet end of the flow regulating valve and the inlet end of the airflow passage on the base connected with it are communicated;
[0008] Air compression device, the outlet end of the air compression device is communicated with the inlet end of the flow regulating valve.
[0009] Optionally, the flow regulating valve is screw-threaded to the base.
[0010] Optionally, the airflow passage includes one total passage and multiple sub-passage, the inlet end of the total passage is communicated with the outlet end of the flow regulating valve, the outlet end of the total passage is communicated with the inlet end of multiple sub-passage, and the outlet end of multiple sub-passage is arranged along the circumferential direction of the electric eye.
[0011] Optionally, the fire detection system further includes first filter unit, and the first filter unit is detachably installed at the inlet end of the air compression device.
[0012] Optionally, the fire detection system further comprises a second filter unit, which is detachably installed on a connecting pipeline between an outlet end of the air compression device and an inlet end of the airflow passage, and the second filter unit has a higher filtering precision than the first filter unit.
[0013] Optionally, the fire detection system further comprises:
[0014] a dust detection unit, which is located on the same side of the base as the electric eye, and is configured to monitor whether the amount of dust on the surface of the electric eye reaches a preset amount of dust;
[0015] an alarm unit, which is configured to prompt a user that the amount of dust on the surface of the electric eye has reached the preset amount of dust.
[0016] Optionally, the fire detection system further comprises a joint, a connecting pipe and a clamp, one end of the joint is in communication with the inlet end of the flow regulating valve, the other end of the joint is inserted into the connecting pipe, the clamp is sleeved outside the connecting pipe to press the inner circumferential wall of the connecting pipe against the outer circumferential wall of the joint, and the other end of the connecting pipe is connected to the outlet end of the air compression device.
[0017] Optionally, the fire detection system further comprises a cover, which is threadedly connected to the base and can block the airflow passage.
[0018] Optionally, the fire detection system further comprises a one-way valve, which is arranged at the inlet end of the airflow passage.
[0019] a boiler, which comprises a furnace body, a burner arranged in the furnace body, and the fire detection system, and the base is installed on the furnace body.
[0020] The fire detection system has the following beneficial effects:
[0021] The fire detection system provided by the utility model, the outlet end of the air compression device is communicated with the flow regulating valve, the flow regulating valve is detachably connected to the base of any fire detection device, the outlet end of the flow regulating valve is communicated with the inlet end of the airflow channel on the base, the outlet end of the flow regulating valve is opposite to the electric eye, the air compression device is started to make the compressed air enter the airflow channel through the flow regulating valve, and the compressed air can clean the dust and dirt on the electric eye. After the electric eye of one fire detection device is cleaned, the flow regulating valve is detached and installed on the base of other fire detection devices to be cleaned, the electric eyes of other multiple fire detection devices are sequentially cleaned, according to the fire detection devices at different positions, the flow of the compressed air can be regulated through the flow regulating valve, the electric eyes with different degrees of dust and dirt are cleaned, and the energy consumption of the air compression device can be reduced. One set of flow regulating valve can clean the electric eyes of multiple fire detection devices, the occupied space is small, the cost is low, the cleaning effect is better, and the detection efficiency of the fire detection device is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is the structural schematic diagram of the fire detection system provided by the utility model embodiment.
[0023] In the figure: 1, base; 2, electric eye; 3, flow regulating valve; 4, second filter unit; 5, joint; 6, connecting pipe; 7, mounting joint; 8, air inlet pipe. DETAILED DESCRIPTION
[0024] The utility model will be further explained in detail in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0025] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. 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.
[0026] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but is in contact through other feature between them.Moreover, first feature is in second feature "on", "above" and "on" include that first feature is in second feature directly above and obliquely above, or just indicate that first feature horizontal height is higher than second feature.First feature is in second feature "under", "below" and "under" include that first feature is in second feature directly below and obliquely below, or just indicate that first feature horizontal height is less than second feature.
[0027] In the description of the embodiment, the terms "upper", "lower", "right", "left", "horizontal", "vertical", and "radial" refer to the orientation or position shown in the drawings, which are for convenience and simplification of description and operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0028] As shown in Figure 1 The utility model discloses an embodiment provides a fire detection system, including air compression device, flow regulating valve 3 and a plurality of fire detection devices, and the fire detection device includes base 1, and installs electric eye 2 on base 1, and electric eye 2 is used for monitoring the flame state of the burner in the boiler, is equipped with airflow channel on base 1, and the outlet end of airflow channel is opposite electric eye 2, and flow regulating valve 3 is selectively detachably connected with any base 1, and the outlet end of flow regulating valve 3 and the import end of airflow channel on base 1 connected with it are communicated, and the outlet end of air compression device is communicated with the import end of flow regulating valve 3.
[0029] The outlet end of air compression device is communicated with flow regulating valve 3, and flow regulating valve 3 is detachably connected on the base 1 of any fire detection device, and the outlet end of flow regulating valve 3 is communicated with the import end of airflow channel on base 1, and the outlet end of flow regulating valve 3 is opposite electric eye 2, and the air compression device is started to make compressed air enter airflow channel through flow regulating valve 3, and compressed air can clean dust and dirt on electric eye 2.
[0030] After cleaning the electric eye 2 of a fire detection device, flow regulating valve 3 is detached and installed on the base 1 of other fire detection devices to be cleaned, and the electric eye 2 of other fire detection devices is cleaned in turn, and since the amount of dust accumulated on the electric eye 2 of fire detection devices at different positions is different, the opening of flow regulating valve 3 is adjusted to adjust the flow of compressed air sent to the airflow channel, and the electric eye 2 with different amounts of dust can be cleaned, and the energy consumption of the air compression device is reduced on the basis of ensuring the cleaning degree of the electric eye 2.
[0031] The flow regulating valve 3 and the air compression device can clean the electric eyes 2 of the plurality of fire detection devices, occupy small space, have low cost, have better cleaning effect, and greatly improve the detection efficiency of the fire detection device.
[0032] Further, the flow regulating valve 3 is threadedly connected to the base 1. The operation is simple and convenient, and the sealing performance is good.
[0033] Further, the air flow channel includes a total channel and a plurality of sub-channels. The inlet end of the total channel is in communication with the outlet end of the flow regulating valve 3. The outlet end of the total channel is in communication with the inlet ends of the plurality of sub-channels. The outlet ends of the plurality of sub-channels are arranged along the circumference of the electric eyes 2.
[0034] The outlet ends of the plurality of sub-channels are arranged along the circumference of the electric eyes 2, which can clean the electric eyes 2 in multiple directions, greatly improve the cleaning effect of the electric eyes 2, and further improve the detection efficiency of the electric eyes 2.
[0035] Further, the fire detection system further includes a first filter unit. The first filter unit is detachably installed at the inlet end of the air compression device.
[0036] The first filter unit is arranged at the inlet end of the air compression device, which can preliminarily filter the air entering the air compression device, ensure that the air entering the air compression device has less impurities, reduce the equipment failure phenomenon caused by impurities entering the air compression device, and further prevent more impurities from entering the flow regulating valve 3, thereby entering the air flow channel and affecting the cleaning effect of the electric eyes 2. When the first filter unit has more impurities accumulated thereon, the first filter unit can be disassembled for cleaning or replacement.
[0037] Further, the fire detection system further includes a second filter unit 4. The second filter unit 4 is detachably installed on the connecting pipeline between the outlet end of the air compression device and the inlet end of the air flow channel. The filtering precision of the second filter unit 4 is higher than that of the first filter unit.
[0038] The second filter unit 4 is arranged on the connecting pipeline between the outlet end of the air compression device and the inlet end of the air flow channel. The filtering precision of the second filter unit 4 is higher than that of the first filter unit. The second filter unit 4 performs secondary precision filtration on the compressed air, further improves the purity of the air entering the air flow channel, prevents too many impurities from entering the air flow channel and causing blockage, and thus affects the cleaning effect of the compressed air on the electric eyes 2.
[0039] Exemplarily, the outlet end of the second filtering unit 4 is communicated with the inlet end of the air flow channel, the inlet end of the second filtering unit 4 is communicated with the outlet end of the flow regulating valve 3, and the inlet end of the flow regulating valve 3 is communicated with the outlet end of the air compression device. In other embodiments, the outlet end of the flow regulating valve 3 is communicated with the air flow channel of the base 1, the inlet end is communicated with the outlet end of the second filtering unit 4, and the inlet end of the second filtering unit 4 is communicated with the outlet end of the air compression device.
[0040] Further, the fire detection system further comprises a dust detection unit and an alarm unit, the dust detection unit is located on the same side of the base 1 as the electric eye 2, the dust detection unit is used to monitor whether the dust amount on the surface of the electric eye 2 reaches a preset dust amount, and the alarm unit is used to prompt the user that the dust amount on the surface of the electric eye 2 has reached the preset dust amount.
[0041] The fire detection system further comprises a controller, and the dust detection unit and the alarm unit are both in communication connection with the controller. The dust amount on the surface of the electric eye 2 can be detected by the dust detection unit. If the dust amount reaches the preset dust amount, the dust detection unit will transmit a signal to the controller, the controller will simultaneously transmit a signal to the alarm unit, and the alarm unit will issue a prompt signal, so as to facilitate the staff to clean the dust on the surface of the electric eye 2 in time. Exemplarily, the dust detection unit is a dust sensor.
[0042] Further, the fire detection system further comprises a connector 5, a connecting pipe 6 and a clamp, one end of the connector 5 is communicated with the inlet end of the flow regulating valve 3, the other end is inserted into the connecting pipe 6, the clamp is sleeved outside the connecting pipe 6 to press the inner circumferential wall of the connecting pipe 6 against the outer circumferential wall of the connector 5, and the other end of the connecting pipe 6 is connected to the outlet end of the air compression device.
[0043] By arranging the connecting pipe 6, the use distance of the flow regulating valve 3 relative to the air compression device can be extended, so as to facilitate the staff to clean the fire detection device at different positions. The clamp is sleeved outside the connecting pipe 6, the clamp is adjusted to press the inner circumferential wall of the connecting pipe 6 against the outer circumferential wall of the connector 5, so as to fix the connector 5 and the connecting pipe 6, thereby preventing the connector 5 from falling off during the cleaning process.
[0044] Exemplarily, the connector 5 can adopt a self-locking male and female head, which is convenient to disassemble and has good sealing performance. It should be noted that the self-locking male and female head belongs to the prior art and will not be introduced here.
[0045] Further, the fire detection system further comprises a mounting connector 7, the inlet end of the mounting connector 7 is communicated with the outlet end of the air compression device, and the outlet end of the mounting connector 7 is communicated with the inlet end of the connecting pipe 6.
[0046] In order to ensure the installation stability of the mounting connector 7, the mounting connector 7 further comprises a fixing part, and the fixing part is screw-connected to the air compression device.
[0047] Exemplarily, the inlet end outer peripheral wall of the mounting joint 7 is provided with a plurality of axially spaced connecting rings, the air inlet pipe 8 is connected to the outlet end of the air compression device, the inlet end of the mounting joint 7 is inserted into the outlet end of the air inlet pipe 8, the air inlet pipe 8 is a hose, and the inlet end of the mounting joint 7 and the outlet end of the air inlet pipe 8 are in interference fit to prevent air leakage at the connecting position of the mounting joint 7 and the air inlet pipe 8; the plurality of connecting rings can increase the friction coefficient between the connecting rings and the inner peripheral wall of the air inlet pipe 8, so that the outlet end of the air inlet pipe 8 is more fixedly connected to the inlet end of the mounting joint 7. The outlet end of the mounting joint 7 is in communication with the inlet end of the connecting pipe 6 through the self-locking male and female heads, which is convenient to disassemble and has good sealing performance.
[0048] Exemplarily, the air inlet pipe 8 is mounted on the air compression device through the self-locking male and female heads, and the inlet end of the air inlet pipe 8 is in communication with the outlet end of the air compression device.
[0049] Further, the fire detection system further comprises a cover, the cover is threadedly connected to the base 1, and the cover can block the air flow channel. After the electric eye 2 of the fire detection device is cleaned, the flow regulating valve 3 is detached from the base 1, and the cover is installed, so that dust is prevented from entering the air flow channel, dust and dirt are prevented from accumulating on the surface of the electric eye 2, and the detection efficiency of the electric eye 2 is affected.
[0050] The utility model also provides a boiler, including furnace body, be located in the combustor of furnace body, and fire detection system, base 1 is installed in furnace body.
[0051] The base 1 is provided with a mounting chamber, the detection end of the electric eye 2 is located in the mounting chamber, one end of the plurality of sub-channels extends to the inner wall of the mounting chamber, the outlet end of the plurality of sub-channels is in communication with the mounting chamber, the inner cavity of the furnace body is provided with a detection channel, the detection channel is in communication with the mounting chamber, one end of the detection channel is opposite to the flame end of the combustor, and the other end of the detection channel is opposite to the detection end of the electric eye 2, and the electric eye 2 can monitor the flame state in the combustor in real time.
[0052] It should be noted that the mounting chamber has an open end, the opening surrounds the detection channel, and the light of the flame end of the combustor can pass through the detection channel into the mounting chamber and be received by the detection end of the electric eye 2.
[0053] The compressed air provided by the air compression device enters the air flow channel through the flow regulating valve 3, the outlet end of the air flow channel is opposite to the electric eye 2, the compressed air enters the mounting chamber through the air flow channel, and the dust and dirt on the surface of the electric eye 2 in the mounting chamber can be cleaned, and the dust and dirt enter the inner cavity of the furnace body along with the airflow.
[0054] Further, the fire detection system further comprises a one-way valve arranged at the inlet end of the gas flow channel.
[0055] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.
Claims
1. A fire detection system characterized by, The fire detection system comprises: a plurality of fire detection devices, each of which comprises a base (1) and an electric eye (2) mounted on the base (1), the electric eye (2) being used to monitor the flame state of a burner in a boiler, the base (1) being provided with an air flow passage, the outlet end of the air flow passage being opposite to the electric eye (2); a flow regulating valve (3) selectively detachably connected to any of the bases (1), the outlet end of the flow regulating valve (3) being in communication with the inlet end of the air flow passage of the base (1) connected thereto; an air compression device, the outlet end of the air compression device being in communication with the inlet end of the flow regulating valve (3).
2. The flame-detecting system of claim 1, wherein, The flow regulating valve (3) is threadedly connected to the base (1).
3. The flame-detecting system of claim 1, wherein, The air flow passage comprises a main passage and a plurality of sub-passage, the inlet end of the main passage being in communication with the outlet end of the flow regulating valve (3), the outlet end of the main passage being in communication with the inlet end of the plurality of sub-passage, the outlet end of the plurality of sub-passage being arranged along the circumference of the electric eye (2).
4. The flame-detecting system of claim 1, wherein, The fire detection system further comprises a first filter unit, the first filter unit being detachably mounted on the inlet end of the air compression device.
5. The flame-detecting system of claim 4, wherein, The fire detection system further comprises a second filter unit (4), the second filter unit (4) being detachably mounted on the connecting pipeline between the outlet end of the air compression device and the inlet end of the air flow passage, the second filter unit (4) having a higher filtering precision than the first filter unit.
6. The flame-detecting system of claim 1, wherein, The fire detection system further comprises: a dust detection unit, the dust detection unit being located on the same side of the base (1) as the electric eye (2), the dust detection unit being used to monitor whether the dust amount on the surface of the electric eye (2) reaches a preset dust amount; an alarm unit, the alarm unit being used to prompt the user that the dust amount on the surface of the electric eye (2) has reached the preset dust amount.
7. The flame-detecting system of claim 1, wherein The fire detection system further comprises a connector (5), a connecting pipe (6) and a clamp, one end of the connector (5) being in communication with the inlet end of the flow regulating valve (3), the other end of the connector (5) being inserted into the connecting pipe (6), the clamp being sleeved on the connecting pipe (6) to press the inner circumferential wall of the connecting pipe (6) against the outer circumferential wall of the connector (5), the other end of the connecting pipe (6) being connected to the outlet end of the air compression device.
8. The flame-detecting system of claim 1, wherein, The fire detection system further comprises a cover, the cover being threadedly connected to the base (1), the cover being capable of blocking the air flow passage.
9. The flame-detecting system of claim 1, wherein, The fire detection system further comprises a one-way valve, the one-way valve being provided at the inlet end of the air flow passage.
10. A boiler characterised by The fire detection system is used in a furnace body, a burner provided in the furnace body and a fire detection system as claimed in any one of claims 1-9, the base (1) being mounted on the furnace body.