Three-dimensional flow centrifugal fan with self-checking function

Abstract

The utility model relates to the technical field of self-inspection of centrifugal fans, and discloses a three-dimensional flow centrifugal fan with a self-inspection function, which comprises a fan main body and a self-inspection mechanism, a damping base is arranged at the bottom end of the fan main body; the self-checking mechanism comprises a control device, a signal connector, a temperature measuring assembly and a vibration measuring assembly. The temperature measuring assembly comprises a temperature sensor, a mounting seat and a protective cover; the vibration measurement assembly comprises a first vibration sensor and a second vibration sensor; through cooperation of the fan body, the self-checking mechanism, the temperature sensor, the first vibration sensor, the second vibration sensor and the signal connector, temperature measurement and vibration measurement are conducted on the fan body, monitoring signals are transmitted to the control equipment, problems are found in time, maintenance and repair are conducted, normal operation of the equipment is ensured, and the service life of the equipment is prolonged. The service life of the three-dimensional flow centrifugal fan is prolonged, the detection head is effectively protected through the installation base and the protective cover, and the protective cover can be disassembled and maintained through the fixing piece.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fan self-checking, in particular to a three-dimensional flow centrifugal fan with a self-checking function. Background Art

[0002] Centrifugal fans are a common type of air handling equipment, commonly used in applications such as ventilation, air conditioning, heating, ventilation and air purification. They generate centrifugal force through the rotating impeller to draw air into or push it out of the machine. Centrifugal fans play an important role in industrial, commercial and residential buildings, providing fresh air indoors and maintaining suitable temperature and humidity.

[0003] A three-dimensional flow centrifugal fan is a type of fan that combines the features of an axial flow fan and a centrifugal fan. It usually has an appearance structure similar to an axial flow fan, but its internal design structure has features similar to a centrifugal fan, hence the name "three-dimensional flow". The working principle of a three-dimensional flow centrifugal fan is to generate airflow through a rotating impeller, with both radial centrifugal force and axial flow direction. This design can achieve higher wind pressure and flow than ordinary axial flow fans. Therefore, three-dimensional flow centrifugal fans are often used in systems that require medium air volume and medium static pressure, such as air conditioning systems, ventilation systems, cooling systems, etc.

[0004] The existing three-dimensional flow centrifugal fan has certain disadvantages when in use. After long-term use, the three-dimensional flow centrifugal fan is prone to malfunction due to abnormalities, which reduces the service life of the three-dimensional flow centrifugal fan and cannot meet people's needs. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a three-dimensional flow centrifugal fan with a self-checking function, which can solve the technical problems raised in the background technology.

[0007] (II) Technical solution

[0008] The utility model is implemented by the following technical scheme: a three-dimensional flow centrifugal fan with a self-checking function, comprising a fan main body and a self-checking mechanism detachably arranged on the fan main body; wherein, a shock-absorbing base is detachably arranged on the bottom end of the fan main body, and the shock-absorbing base can transmit the vibration generated when the fan main body is running to the surrounding environment; the self-checking mechanism comprises a control device detachably mounted on the upper end of the shock-absorbing base, a temperature measuring component detachably mounted at the air outlet of the fan main body and a vibration measuring component mounted on the fan main body, an alarm device is arranged inside the control device, and the control device can control the opening and closing of the fan main body; the temperature measuring component and the vibration measuring component are both connected to the control device, and the temperature measuring component can monitor the temperature changes when the fan is running, promptly discover problems and take corresponding measures, and the vibration measuring component monitoring vibration can help predict problems such as bearing failure and impeller imbalance, and timely perform maintenance and repair to ensure the normal operation of the equipment; the temperature measuring component comprises a A temperature sensor on the outside of the air outlet of the fan body, a mounting base detachably mounted on the inside of the air outlet of the fan body and a protective cover detachably fixed on the mounting base, wherein the protective cover can effectively protect the temperature sensor, and the protective cover is provided with a plurality of ventilation holes; one end of the temperature sensor extends into the interior of the protective cover; the vibration measuring assembly comprises a plurality of first vibration sensors detachably mounted on the outer casing of the fan body and a second vibration sensor detachably mounted at the bearing position of the driving end of the fan body, wherein the first vibration sensor and the second vibration sensor cooperate to monitor the vibration of the fan body; the self-test mechanism also comprises a plurality of signal connectors connected to the control device; a plurality of groups of the signal connectors are detachably mounted on the temperature sensor, the first vibration sensor and the second vibration sensor, respectively, and the signal connector can transmit the monitoring signals of the temperature sensor, the first vibration sensor and the second vibration sensor to the control device, so that the control device can control the fan body to open and close.

[0009] Preferably, the temperature sensor, the first vibration sensor and the second vibration sensor are symmetrically provided with mounting blocks, and the mounting blocks are provided with mounting rods detachably connected to the fan body.

[0010] Preferably, the temperature sensor is provided with a detection head extending into the interior of the protective cover, and the mounting seat is provided with a through hole corresponding to the detection head.

[0011] Preferably, a fixing piece is vertically arranged at one end of the protective cover, and fixing grooves corresponding to the fixing piece are evenly spaced on the mounting seat, and the fixing piece can be installed in the fixing groove to fix the protective cover.

[0012] Preferably, the fixing member includes a fixing block connected to the fixing groove and a clamping ring arranged on the fixing block, and two sides of the outer surface of the fixing block are respectively threadedly connected to the fixing groove.

[0013] Preferably, a plurality of groups of the fixing members are arranged in a circular array on one end surface of the protective cover, and the protective cover is a cylindrical structure.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a three-dimensional flow centrifugal fan with a self-checking function, which has the following beneficial effects:

[0016] The three-dimensional flow centrifugal fan with a self-checking function can measure the temperature and vibration of the fan body through the fan body and the self-checking mechanism, and the temperature sensor, the first vibration sensor, the second vibration sensor and the signal connector can transmit the monitoring signal to the control device, so as to find problems in time and perform maintenance and repair to ensure the normal operation of the equipment and extend the service life of the three-dimensional flow centrifugal fan. The detection head can be effectively protected by the provided mounting seat and protective cover, and the protective cover can be disassembled and maintained by the provided fixings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial structural diagram of the utility model.

[0018] Figure 2 It is a partial structural diagram of the blower main body and the self-checking mechanism in the utility model.

[0019] Figure 3 It is a partial structural diagram of the protective cover and the fixing member in the utility model.

[0020] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 It is a partial structural diagram of the mounting seat and the fixing groove in the utility model.

[0022] Figure 6 It is a partial structural diagram of the first vibration sensor and the mounting block in the utility model.

[0023] In the figure: 1. fan body; 2. shock-absorbing base; 3. control device; 4. temperature sensor; 5. mounting base; 6. protective cover; 7. first vibration sensor; 8. second vibration sensor; 9. signal connector; 10. detection head; 11. mounting block; 12. mounting rod; 13. through hole; 14. fixing piece; 15. fixing groove; 16. fixing block; 17. retaining ring. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] Example 1: Please refer to Figure 1 - Figure 6A three-dimensional flow centrifugal fan with a self-checking function in this embodiment comprises a fan body 1 and a self-checking mechanism detachably arranged on the fan body 1; wherein a shock-absorbing base 2 is detachably arranged at the bottom end of the fan body 1, and the shock-absorbing base 2 can transmit the vibration generated when the fan body 1 is running to the surrounding environment; the self-checking mechanism comprises a control device 3 detachably mounted on the upper end of the shock-absorbing base 2, a temperature measuring component detachably mounted at the air outlet of the fan body 1, and a vibration measuring component mounted on the fan body 1, an alarm device is arranged inside the control device 3, and the control device 3 can control the opening and closing of the fan body 1; the temperature measuring component and the vibration measuring component are both connected to the control device 3 The temperature measuring component can monitor the temperature changes during the operation of the fan, find problems in time and take corresponding measures, and the vibration measuring component can monitor the vibration to help predict problems such as bearing failure and impeller imbalance, and perform maintenance and repair in time to ensure the normal operation of the equipment; the temperature measuring component includes a temperature sensor 4 that can be detachably mounted on the outside of the air outlet of the fan body 1, a mounting base 5 that can be detachably mounted on the inside of the air outlet of the fan body 1 and a protective cover 6 that can be detachably fixed on the mounting base 5, the protective cover 6 can effectively protect the temperature sensor 4, and a plurality of ventilation holes are arranged on the protective cover 6; one end of the temperature sensor 4 extends into the interior of the protective cover 6; the vibration measuring component includes a plurality of detachable mounting bases 5, and a plurality of ventilating holes are arranged on the protective cover 6. A first vibration sensor 7 mounted on the outer casing of the fan body 1 and a second vibration sensor 8 detachably mounted at the bearing position of the driving end of the fan body 1, the first vibration sensor 7 and the second vibration sensor 8 cooperate to monitor the vibration of the fan body 1; the self-test mechanism also includes a plurality of groups of signal connectors 9 connected to the control device 3; the plurality of groups of signal connectors 9 are detachably mounted on the temperature sensor 4, the first vibration sensor 7 and the second vibration sensor 8, respectively, the signal connectors 9 can transmit the monitoring signals of the temperature sensor 4, the first vibration sensor 7 and the second vibration sensor 8 to the control device 3, so that the control device 3 can control the fan body 1 to start and close, the first vibration sensor 7 and the second vibration sensor 8 are connected to the control device 3, and the first vibration sensor 7 and the second vibration sensor 8 are connected to the control device 3. A vibration sensor 7 and a second vibration sensor 8 can perform all-round vibration monitoring on the fan body 1, and the temperature sensor 4 can perform temperature monitoring on the air outlet of the fan body 1, and transmit the vibration monitoring signal and the temperature monitoring signal to the control device 3 through the signal connector 9. When the vibration signal and the temperature signal exceed the set threshold, they are set as abnormal data. When abnormal data is detected or the equipment is operating abnormally, an alarm can be issued to the operator in time, and even a shutdown function can be realized to avoid further damage or accidents. Through this self-check function, the reliability and safety of equipment operation can be effectively improved, helping enterprises to reduce failure rates and improve production efficiency.

[0026] The temperature sensor 4, the first vibration sensor 7 and the second vibration sensor 8 are symmetrically provided with mounting blocks 11, and the mounting blocks 11 are provided with mounting rods 12 detachably connected to the fan body 1. The fan body 1 is provided with a plurality of groups of mounting holes corresponding to the mounting rods 12, and one side of the mounting block 11 is in contact with the outer shell surface of the fan body 1.

[0027] The temperature sensor 4 is provided with a detection head 10 extending into the interior of the protective cover 6, the mounting base 5 is provided with a through hole 13 corresponding to the detection head 10, and the protective cover 6 is provided with a ventilation hole for temperature measurement.

[0028] One end of the protective cover 6 is vertically provided with a fixing piece 14 , and the mounting seat 5 is provided with fixing grooves 15 corresponding to the fixing piece 14 at equal intervals. The fixing piece 14 can be installed in the fixing groove 15 to fix the protective cover 6 .

[0029] The fixing member 14 includes a fixing block 16 connected to the fixing groove 15 and a clamping ring 17 arranged on the fixing block 16 . Both sides of the outer surface of the fixing block 16 are respectively threadedly connected to the fixing groove 15 .

[0030] A plurality of groups of fixing members 14 are arranged in a circular array on one end surface of the protective cover 6, and the protective cover 6 is a cylindrical structure.

[0031] When this three-dimensional flow centrifugal fan with a self-checking function is in use, the temperature sensor 4 can monitor the temperature at the air outlet of the fan body 1, and transmit the vibration monitoring signal and the temperature monitoring signal to the control device 3 through the signal connector 9. When the vibration signal and the temperature signal exceed the set threshold, they are set as abnormal data. When abnormal data is monitored or the equipment is operating abnormally, an alarm can be issued to the operator in time, and even a shutdown function can be realized to avoid further damage or accidents. Through this self-checking function, the reliability and safety of equipment operation can be effectively improved, helping enterprises to reduce failure rates and improve production efficiency.

[0032] This three-dimensional flow centrifugal fan with a self-checking function can measure the temperature and vibration of the fan body 1 through the set fan body 1 and the self-checking mechanism, and the temperature sensor 4, the first vibration sensor 7, the second vibration sensor 8 and the signal connector 9, and transmit the monitoring signal to the control device 3, so as to find problems in time and perform maintenance and repair to ensure the normal operation of the equipment and extend the service life of the three-dimensional flow centrifugal fan. The detection head 10 can be effectively protected by the set mounting seat 5 and the protective cover 6, and the protective cover 6 can be disassembled and maintained by the set fixing part 14.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A three-dimensional flow centrifugal fan with a self-checking function, characterized in that: include: A fan body (1) and a self-test mechanism detachably arranged on the fan body (1); Wherein, a shock-absorbing base (2) is detachably provided at the bottom end of the fan body (1); The self-test mechanism comprises a control device (3) detachably mounted on the upper end of the shock-absorbing base (2), a temperature measuring component detachably mounted at the air outlet of the fan body (1), and a vibration measuring component mounted on the fan body (1); The temperature measuring component and the vibration measuring component are both connected to the control device (3); The temperature measuring assembly comprises a temperature sensor (4) detachably mounted on the outside of the air outlet of the fan body (1), a mounting seat (5) detachably mounted on the inside of the air outlet of the fan body (1), and a protective cover (6) detachably fixed on the mounting seat (5); One end of the temperature sensor (4) extends into the interior of the protective cover (6); The vibration measuring assembly comprises a plurality of groups of first vibration sensors (7) detachably mounted on the outer shell of the fan body (1) and a second vibration sensor (8) detachably mounted at the bearing position of the drive end of the fan body (1); The self-test mechanism also includes a plurality of groups of signal connectors (9) connected to the control device (3); Several groups of the signal connectors (9) are detachably mounted on the temperature sensor (4), the first vibration sensor (7) and the second vibration sensor (8).

2. A three-dimensional flow centrifugal fan with a self-checking function as claimed in claim 1, characterized in that: The temperature sensor (4), the first vibration sensor (7) and the second vibration sensor (8) are all symmetrically provided with mounting blocks (11), and the mounting blocks (11) are provided with mounting rods (12) detachably connected to the fan body (1).

3. The three-dimensional flow centrifugal fan with self-checking function as claimed in claim 1, characterized in that: The temperature sensor (4) is provided with a detection head (10) extending into the interior of the protective cover (6), and the mounting seat (5) is provided with a through hole (13) corresponding to the detection head (10).

4. A three-dimensional flow centrifugal fan with a self-checking function as claimed in claim 1, characterized in that: A fixing piece (14) is vertically arranged at one end of the protective cover (6), and fixing grooves (15) corresponding to the fixing piece (14) are arranged at equal intervals on the mounting seat (5).

5. A three-dimensional flow centrifugal fan with a self-checking function as claimed in claim 4, characterized in that: The fixing member (14) comprises a fixing block (16) connected to the fixing groove (15) and a clamping ring (17) arranged on the fixing block (16); both sides of the outer surface of the fixing block (16) are respectively threadedly connected to the fixing groove (15).

6. A three-dimensional flow centrifugal fan with a self-checking function as claimed in claim 4, characterized in that: A plurality of groups of the fixing members (14) are arranged in a circular array on one end surface of the protective cover (6), and the protective cover (6) is in a cylindrical structure.

Images