Low-energy-consumption additive blowing-in device for thermal power generation

Abstract

The invention discloses a low-energy-consumption additive blowing-in device for thermal power generation, and belongs to the technical field of thermal power generation, the low-energy-consumption additive blowing-in device for thermal power generation comprises a main air pipe, and further comprises two groups of blowing-in assemblies which are symmetrically mounted on the two sides of the main air pipe and comprise air pipes, and the other ends of the air pipes are connected with the output end of a Roots blower; the material supply mechanism is used for providing an additive and blowing the additive into the main air pipe in cooperation with the two blowing-in assemblies to collide with the fly ash flowing in the main air pipe so as to be mixed; the material supply mechanism comprises a material barrel and a bearing plate, a partition plate used for dividing the material barrel into the material barrel and the material barrel is fixedly connected into the material barrel, and the material supply mechanism further comprises a driving assembly installed on the material barrel and used for driving the bearing plate to linearly move or vibrate in the length direction of the material barrel; the elastic supporting assembly is installed on the material barrel and used for elastically supporting the lead screw in the driving assembly; according to the invention, an additive can be quickly blown into the main air pipe to be mixed with fly ash.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal power generation, and in particular relates to a low-energy consumption additive injection device for thermal power generation. Background Art

[0002] In the process of thermal power generation, a storage tank is generally used in conjunction with an air pipe to add additives, that is, the additives are blown into the fly ash by wind. For example, a low-energy consumption additive blowing device for thermal power generation proposed in a Chinese patent with announcement number CN118582747A includes: a storage box for storing additives and a blow-out pipe for the entry of additives; it also includes: an air collecting pipe, the air collecting pipe is embedded and installed on the inner wall of the thermal power chimney, and an air inlet mechanism is arranged at the top of the air collecting pipe; a first guide pipe, the first guide pipe is connected to the outside of the air collecting pipe, and the end of the first guide pipe is connected to an adjustment pipe, and a top adjustment groove and a bottom adjustment groove are respectively arranged on the inner side of the top and the outer side of the bottom of the adjustment pipe; a top adjustment plate, the top adjustment plate is rotatably connected to the inner side of the top adjustment groove, and an adjustment mechanism for adjusting its angle is arranged on the outer side of the top adjustment plate.

[0003] The technical solution proposed by the above patent is easy to install and use, and can directly use the flue gas of thermal power generation for power supply, and can adjust the wind force to facilitate the blowing in of additives.

[0004] However, how to blow additives into fly ash in a quantitative and accurate manner and mix them with the fly ash remains a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a low-energy consumption additive injection device for thermal power generation, which solves the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A low-energy consumption additive injection device for thermal power generation, comprising a main air duct, and also comprising:

[0007] The blowing assembly is provided with two groups and symmetrically installed on both sides of the main air duct, including an air duct, the air duct is obliquely installed on the main air duct and one end of the air duct extends into the main air duct, and the other end of the air duct is connected to the output end of the Roots blower;

[0008] The material supply mechanism is installed on the air duct, and is used to provide additives and cooperate with two sets of blowing components to blow them into the main air duct to collide with the fly ash flowing in the main air duct and then mix;

[0009] The material supply mechanism includes a material barrel and a bearing plate, wherein the material barrel is mounted on and communicated with the air duct, the bearing plate is slidably matched with a guide groove provided on the material barrel, and a partition for dividing the material barrel into cavity A and cavity B is fixedly connected inside the material barrel;

[0010] A driving assembly is provided at the lower part of the material barrel, and the driving assembly is installed on the material barrel to drive the bearing plate to perform linear motion or vibration along the length direction of the material barrel;

[0011] An elastic support component is provided on the upper part of the material barrel, and the elastic support component is installed on the material barrel and is used for elastically supporting the screw rod in the driving component.

[0012] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0013] Further technical solution: The driving assembly includes a screw, a crown gear A, a crown gear B, a ratchet and a motor. The ratchet is installed on a partition and is fixedly connected to a limit slider that slides with a limit slide groove provided on the screw. The crown gear B is fixedly connected to the end of the screw. The crown gear A is rotatably connected to the material barrel and meshes with the crown gear B. The output shaft of the motor detachably connected to the material barrel is fixedly connected to the crown gear A. The other end of the screw is connected to the elastic support assembly, and the screw is threadedly connected to the bearing plate.

[0014] Further technical solution: The elastic support assembly includes a support plate, an elastic member, a support frame and a cylinder. The support frame is rotatably connected to the screw rod, and the support frame is fixedly connected to the lower end of the support plate slidably connected to the material cylinder. The support plate is fixedly connected with a cylinder that slides with the guide groove. The elastic member is sleeved on the cylinder and its two ends respectively contact the support plate and the material cylinder.

[0015] A further technical solution also includes a regulating mechanism for regulating the blowing quality of the additive.

[0016] Further technical solution: The control mechanism includes:

[0017] An information collection module is used to detect the mass reduction rate information of the additive, the vibration information of the carrier plate, the air flow rate information in the air duct, and the air flow rate information in the main air duct;

[0018] A processing module, used for receiving the information acquired by the information acquisition module and importing the information into the evaluation model after performing the information tempering process, and then outputting the evaluation coefficient;

[0019] A judgment module receives the data information collected by the information collection module and the data information output by the processing module, makes judgments, and then outputs judgment information;

[0020] The control module is electrically connected to the motor and the Roots blower and is used for receiving the judgment information and forming the control information.

[0021] Further technical solution: The information collection module includes:

[0022] The flow rate detection unit A is a flow rate sensor A, which is used to detect the air flow rate information A in the air duct;

[0023] The flow rate detection unit B is a flow rate sensor B, which is used to detect the air flow rate information B in the main air duct;

[0024] A weight detection unit, comprising a weight sensor and a load-bearing plate, wherein the load-bearing plate is sleeved on the screw rod and fixedly connected to the weight sensor fixedly connected to the bearing plate, and is used to detect the weight reduction rate information of the additive;

[0025] The vibration detection unit is a vibration sensor used to detect vibration information of the bearing plate.

[0026] Further technical solution: The specific working mode of the regulatory mechanism is:

[0027] S1, obtaining air flow rate information A in the air duct, air flow rate information B in the main air duct, mass reduction rate information of the additive, and vibration information of the carrier plate through flow rate detection unit A, flow rate detection unit B, and weight detection unit;

[0028] S2, importing the air flow rate information A and the quality reduction speed information into the judgment module and performing a corresponding comparison with the corresponding air flow rate threshold and the quality reduction speed threshold. If the air flow rate information A is not within the air flow rate threshold, the judgment module forms the judgment information for controlling the Roots blower. At this time, the control module receives the judgment information for controlling the Roots blower and adjusts the power of the Roots blower until the air flow rate information A is within the air flow rate threshold. If the quality reduction speed information is not within the quality reduction speed threshold, the judgment module forms the control judgment information for the motor. At this time, the control module receives the judgment information for controlling the motor, controls the motor, causes the motor to reverse and adjust the height of the carrying plate, and then further adjusts the vibration frequency of the carrying plate until the quality reduction speed information is within the quality reduction speed threshold.

[0029] S3. Under the condition that the air flow rate information A and the mass reduction rate information are both within the corresponding thresholds, the air flow rate information A in the air duct, the air flow rate information B in the main air duct, the mass reduction rate information of the additive, and the vibration information of the support plate are dimensionlessly processed and imported into the evaluation model, and the evaluation coefficient is output. The obtained evaluation coefficient is imported into the judgment module for corresponding comparison with the preset coefficient threshold. If the evaluation coefficient is not within the coefficient threshold, the judgment module forms judgment information for controlling the motor and Roots blower, and the control module receives the judgment information for controlling the motor and Roots blower and controls the two until the evaluation coefficient is within the coefficient threshold.

[0030] Further technical solution: The expression of the evaluation model is:

[0031]

[0032] Among them, CH PG is the evaluation coefficient, V 粉 represents the air flow rate information B, S represents the main air duct cross-sectional area, V represents the air flow rate information A, G represents the quality drop rate information, f represents the vibration information, V1 represents the mean of the upper and lower limits of the air flow rate threshold, G1 represents the mean of the upper and lower limits of the quality drop rate threshold, f1 represents the mean of the upper and lower limits of the vibration threshold, μ represents the blowing quality influence factor, V2 represents the lower limit of the air flow rate threshold, G2 represents the lower limit of the quality drop rate threshold, and f2 represents the lower limit of the vibration threshold.

[0033] The present invention provides a low-energy consumption additive injection device for thermal power generation, which has the following beneficial effects compared with the prior art:

[0034] 1. The relevant technicians turn on the Roots blower. At this time, the motor pushes the crown gear A to rotate forward. At this time, the crown gear A pushes the meshing crown gear B to stagger the teeth, thereby driving the screw to perform linear reciprocating motion relative to the ratchet. The screw pushes the bearing plate to vibrate. When the mass reduction speed information (weight reduction speed information) of the additive is within the preset mass reduction speed threshold, the motor is prompted to reverse. At this time, the screw pushes the bearing plate to slide along the material barrel, thereby pushing the additive on the bearing plate close to the material outlet of the material barrel until the mass reduction speed information is within the mass reduction threshold. At this time, the Roots blower forms a negative pressure in the air duct, and blows the additive on the bearing plate that is vibrating and suspended into the main air duct. At this time, the two streams of additives blown in from the air duct collide with the fly ash flowing in the main air duct, prompting the additive and fly ash to mix quickly and fill the space in the main air duct;

[0035] 2. The control mechanism provided in the present invention can evaluate the quality of blowing in additives and adjust the blowing conditions according to the evaluation results, thereby achieving efficient blowing in of additives. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0037] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0038] Figure 3 It is a schematic structural diagram of the driving assembly and the elastic supporting assembly of the present invention.

[0039] Figure 4 For the present invention Figure 3 A-section structure enlarged schematic diagram.

[0040] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure of part B.

[0041] Figure 6 It is a schematic diagram of the structure of the control mechanism 4 of the present invention.

[0042] Notes on the accompanying drawings: 1. main air duct; 2. blowing component; 201. air duct; 3. material supply mechanism; 301. material barrel; 3011. cavity A; 3012. cavity B; 3013. guide groove; 302. bearing plate; 303. driving assembly; 3031. screw rod; 3032. crown gear A; 3033. crown gear B; 3034. ratchet; 3035. motor; 304. elastic support assembly; 3041. support plate; 3042. elastic member; 3043. support frame; 3044. cylinder; 305. partition; 4. regulating mechanism; 401. information acquisition module; 4011. flow rate sensor A; 4012. flow rate sensor B; 4013. weight sensor; 4014. vibration sensor; 402. processing module; 403. judgment module; 404. control module. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0045] See also Figure 1 to Figure 6 , provided in one embodiment of the present invention, is a low-energy consumption additive blowing device for thermal power generation, comprising a main air duct 1, and also comprising:

[0046] The blowing assembly is provided with two groups and symmetrically installed on both sides of the main air duct 1, including an air duct 201, wherein the air duct 201 is obliquely installed on the main air duct 1 and one end thereof extends into the main air duct 1, and the other end of the air duct 201 is connected to the output end of the Roots blower;

[0047] The material supply mechanism 3 is installed on the air duct 201, and is used to provide additives and cooperate with two sets of blowing components to blow them into the main air duct 1 to collide with the fly ash flowing in the main air duct 1 and then mix them;

[0048] The material supply mechanism 3 includes a material barrel 301 and a bearing plate 302. The material barrel 301 is mounted on the air duct 201 and communicated with the air duct 201. The bearing plate 302 is slidably matched with a guide groove 3013 provided on the material barrel 301. A partition 305 for dividing the material barrel 301 into a cavity A 3011 and a cavity B 3012 is fixedly connected inside the material barrel 301. The material supply mechanism 3 also includes:

[0049] A driving assembly 303 is provided at the lower part of the material barrel 301. The driving assembly 303 is installed on the material barrel 301 and is used to drive the carrying plate 302 to perform linear motion or vibration along the length direction of the material barrel 301.

[0050] An elastic support assembly 304 is provided on the upper portion of the material barrel 301 . The elastic support assembly 304 is installed on the material barrel 301 and is used to elastically support the screw rod 3031 in the driving assembly 303 .

[0051] The driving assembly 303 includes a screw rod 3031, a crown gear A3032, a crown gear B3033, a ratchet 3034 and a motor 3035. The ratchet 3034 is mounted on the partition 305 and is fixedly connected to a limiting slider (not shown in the figure) that slidably cooperates with a limiting slide groove (not shown in the figure) provided on the screw rod 3031. The crown gear B3033 is fixedly connected to the end of the screw rod 3031. The crown gear A3032 is rotatably connected to the material barrel 301 and meshes with the crown gear B3033. The output shaft of the motor 3035 detachably connected to the material barrel 301 is fixedly connected to the crown gear A3032, the other end of the screw rod 3031 is connected to the elastic support assembly 304, the screw rod 3031 is threadedly connected to the bearing plate 302, the teeth of the crown gear A3032 and the crown gear B3033 are right-angled triangles, when the crown gear A3032 reverses, the right-angled sides of its teeth and the right-angled sides of the teeth of the crown gear B3033 are stressed, which can push the screw rod 3031 to rotate and then push the bearing plate 302 to slide along the guide groove 3013. When the crown gear A3032 rotates forward, the beveled sides of the teeth of the crown gear A3032 and the beveled sides of the crown gear B3033 are stressed, the two are misaligned, and because the limiting screw rod 3031 of the ratchet 3034 cannot rotate forward, the screw rod 3031 can only vibrate following the crown gear B3033, thereby driving the bearing plate 302 to vibrate.

[0052] The motor 3035 pushes the crown gear A3032 to rotate forward, and the crown gear A3032 pushes the meshing crown gear B3033 to stagger the teeth, thereby driving the screw rod 3031 to perform linear reciprocating motion relative to the ratchet wheel 3034, and the screw rod 3031 pushes the carrier plate 302 to vibrate. When the mass reduction speed information (weight reduction speed information) of the additive is within the preset mass reduction speed threshold, the motor 3035 is prompted to reverse, and the screw rod 3031 pushes the carrier plate 302 to slide along the guide groove 3013, thereby pushing the additive on the carrier plate 302 to approach the material outlet of the material barrel 301, until the mass reduction speed information is within the mass reduction threshold.

[0053] Among them, the elastic support assembly 304 includes a support plate 3041, an elastic member 3042, a support frame 3043 and a cylinder 3044, the support frame 3043 is rotatably connected to the screw rod 3031, the support frame 3043 is fixedly connected to the lower end of the support plate 3041 slidably connected to the guide groove 3013, the support plate 3041 is fixedly connected with a cylinder 3044 that slidably cooperates with the material barrel 301, the elastic member 3042 is sleeved on the cylinder 3044 and the two ends correspond to the support plate 3041 and the material barrel 301 respectively. The purpose of this arrangement is to use the elastic member 3042 to push the support plate 3041 to drive the support frame 3043 to give the support frame 3043 an elastic thrust, thereby prompting the support plate 3041 to rotate or vibrate under the drive of the driving assembly 303.

[0054] In the embodiment of the present invention, the relevant technician turns on the Roots blower, and the motor 3035 pushes the crown gear A3032 to rotate forward. At this time, the crown gear A3032 pushes the crown gear B3033 meshing with it to perform tooth staggering, thereby driving the screw rod 3031 to perform linear reciprocating motion relative to the ratchet 3034, and the screw rod 3031 pushes the bearing plate 302 to vibrate. When the mass reduction rate information (weight reduction rate information) of the additive is within the preset mass reduction rate threshold, the motor 3035 is prompted to reverse, and the screw rod 3031 pushes the carrier plate 302 to slide along the guide groove 3013, thereby pushing the additive on the carrier plate 302 close to the material outlet of the material barrel 301 until the mass reduction rate information is within the mass reduction threshold. At this time, the Roots blower forms a negative pressure in the air duct 201, and blows the additive vibrating and suspended on the carrier plate 302 into the main air duct 1. At this time, the two streams of additives blown in from the air duct 201 collide with the fly ash flowing in the main air duct 1, prompting the additive and fly ash to mix quickly and fill the space in the main air duct 1.

[0055] See also Figure 6 As an embodiment of the present invention, it also includes a regulating mechanism 4 for regulating the injection quality of the additive, including:

[0056] The information collection module 401 is used to detect the mass reduction rate information of the additive, the vibration information of the carrier plate 302, the air flow rate information in the air duct 201 and the air flow rate information in the main air duct 1;

[0057] The processing module 402 is used to receive the information acquired by the information acquisition module 401 and import it into the evaluation model after performing the non-quantity tempering process, and then output the evaluation coefficient;

[0058] The judgment module 403 receives the data information collected by the information collection module 401 and the data information output by the processing module 402, makes judgments, and then outputs judgment information;

[0059] A control module 404, electrically connected to the motor 3035 and the Roots blower, for receiving the judgment information and forming control information;

[0060] Wherein, the information collection module 401 includes:

[0061] The flow rate detection unit A is a flow rate sensor A4011, which is used to detect the air flow rate information A in the air duct 201;

[0062] The flow rate detection unit B is a flow rate sensor B4012, which is used to detect the air flow rate information B in the main air duct 1;

[0063] The weight detection unit includes a weight sensor 4013 and a load-bearing plate, wherein the load-bearing plate is sleeved on the screw rod 3031 and fixedly connected to the weight sensor 4013 fixedly connected to the bearing plate 302, and is used to detect the mass reduction rate information of the additive;

[0064] The vibration detection unit is a vibration sensor 4014, which is used to detect the vibration information (vibration frequency, which can promote the additive to be more dispersed) of the carrier plate 302;

[0065] The specific working mode of the regulating mechanism 4 is:

[0066] S1, obtaining the air flow rate information A in the air duct 201, the air flow rate information B in the main air duct 1, the mass reduction rate information of the additive, and the vibration information of the carrying plate 302 through the flow rate detection unit A, the flow rate detection unit B, and the weight detection unit;

[0067] S2, importing the air flow rate information A and the quality reduction speed information into the judgment module 403 and making a corresponding comparison with the corresponding air flow rate threshold and the quality reduction speed threshold. If the air flow rate information A is not within the air flow rate threshold, the judgment module 403 forms the judgment information for controlling the Roots blower. At this time, the control module 404 receives the judgment information for controlling the Roots blower and adjusts the power of the Roots blower until the air flow rate information A is within the air flow rate threshold. If the quality reduction speed information is not within the quality reduction speed threshold, the judgment module 403 forms the control judgment information for the motor 3035. At this time, the control module 404 receives the judgment information for controlling the motor 3035, controls the motor 3035, and causes the motor 3035 to reverse and adjust the height of the carrier plate 302. Thereafter, the vibration frequency of the carrier plate 302 is further adjusted until the quality reduction speed information is within the quality reduction speed threshold.

[0068] S3. Under the condition that the air flow rate information A and the mass reduction rate information are both within the corresponding thresholds, the air flow rate information A in the air duct 201, the air flow rate information B in the main air duct 1, the mass reduction rate information of the additive, and the vibration information of the carrier plate 302 are dimensionlessly processed and then imported into the evaluation model, and the evaluation coefficient is output. The obtained evaluation coefficient is imported into the judgment module 403 for corresponding comparison with the preset coefficient threshold. If the evaluation coefficient is not within the coefficient threshold, the judgment module 403 forms the judgment information for controlling the motor and the Roots blower, and the control module 404 receives the judgment information for controlling the motor and the Roots blower to control the two until the evaluation coefficient is within the coefficient threshold, wherein the expression of the evaluation model is:

[0069]

[0070] Among them, CH PG is the evaluation coefficient, V 粉 represents the air flow rate information B, S represents the cross-sectional area of ​​the main air duct 1, V represents the air flow rate information A, G represents the quality drop rate information, f represents the vibration information, V1 represents the mean of the upper and lower limits of the air flow rate threshold, G1 represents the mean of the upper and lower limits of the quality drop rate threshold, f1 represents the mean of the upper and lower limits of the vibration threshold, μ represents the blowing quality influence factor, V2 represents the lower limit of the air flow rate threshold, G2 represents the lower limit of the quality drop rate threshold, and f2 represents the lower limit of the vibration threshold.

[0071] It should be noted that, in this article, relational terms such as A and B are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-energy consumption additive injection device for thermal power generation, comprising a main air duct (1), characterized in that: Also includes: The blowing assembly is provided with two groups and is symmetrically installed on both sides of the main air duct (1), comprising an air duct (201), wherein the air duct (201) is obliquely installed on the main air duct (1) and one end of the air duct (201) extends into the main air duct (1), and the other end of the air duct (201) is connected to the output end of the Roots blower; The material supply mechanism (3) is installed on the air duct (201) and is used to provide additives and cooperate with two sets of blowing components to blow the additives into the main air duct (1) to collide with the fly ash flowing in the main air duct (1) and then mix them; The material supply mechanism (3) comprises a material barrel (301) and a carrying plate (302); the material barrel (301) is mounted on the air duct (201) and is in communication with the air duct (201); the carrying plate (302) is slidably matched with a guide groove (3013) provided on the material barrel (301); a partition plate (305) is fixedly connected inside the material barrel (301) for dividing the material barrel (301) into a cavity A (3011) and a cavity B (3012); A driving assembly (303) is provided at the lower part of the material barrel (301), and the driving assembly (303) is installed on the material barrel (301) and is used to drive the bearing plate (302) to perform linear motion or vibration along the length direction of the material barrel (301); An elastic support assembly (304) is provided on the upper portion of the material barrel (301). The elastic support assembly (304) is installed on the material barrel (301) and is used to elastically support the screw rod (3031) in the driving assembly (303).

2. The low-energy consumption additive injection device for thermal power generation according to claim 1, characterized in that: The driving assembly (303) comprises a screw rod (3031), a crown gear A (3032), a crown gear B (3033), a ratchet (3034) and a motor (3035). The ratchet (3034) is mounted on the partition (305) and is fixedly connected to a limit slider which is slidably matched with a limit slide groove provided on the screw rod (3031). The crown gear B (3033) is fixedly connected to the end of the screw rod (3031). The crown gear A (3032) is rotatably connected to the material barrel (301) and meshes with the crown gear B (3033). The output shaft of the motor (3035) which is detachably connected to the material barrel (301) is fixedly connected to the crown gear A (3032). The other end of the screw rod (3031) is connected to the elastic support assembly (304). The screw rod (3031) is threadedly connected to the bearing plate (302).

3. The low-energy consumption additive injection device for thermal power generation according to claim 2, characterized in that: The elastic support assembly (304) comprises a support plate (3041), an elastic member (3042), a support frame (3043) and a barrel (3044); the support frame (3043) is rotatably connected to the screw rod (3031); the support frame (3043) is fixedly connected to the lower end of the support plate (3041) slidably connected to the guide groove (3013); the support plate (3041) is fixedly connected with a barrel (3044) slidably matched with the material barrel (301); the elastic member (3042) is sleeved on the barrel (3044) and its two ends respectively contact the support plate (3041) and the material barrel (301).

4. The low-energy consumption additive injection device for thermal power generation according to claim 1, characterized in that: It also includes a regulating mechanism (4) for regulating the injection quality of the additive.

5. The low-energy consumption additive injection device for thermal power generation according to claim 4, characterized in that: The control mechanism (4) comprises: An information collection module (401) is used to detect the mass reduction rate information of the additive, the vibration information of the carrier plate (302), the air flow rate information in the air duct (201), and the air flow rate information in the main air duct (1); A processing module (402) is used to receive the information acquired by the information acquisition module (401), perform a volume-free tempering process on the information, and then import the information into the evaluation model, thereby outputting an evaluation coefficient; A judgment module (403) receives the data information collected by the information collection module (401) and the data information output by the processing module (402), makes judgments, and then outputs judgment information; The control module (404) is electrically connected to the motor (3035) and the Roots blower, and is used to receive the judgment information and form the control information.

6. The low-energy consumption additive injection device for thermal power generation according to claim 5, characterized in that: The information collection module (401) comprises: The flow rate detection unit A is a flow rate sensor A (4011) used to detect air flow rate information A in the air duct (201); The flow rate detection unit B is a flow rate sensor B (4012) used to detect the air flow rate information B in the main air duct (1); A weight detection unit, comprising a weight sensor (4013) and a load-bearing plate, wherein the load-bearing plate is sleeved on the screw rod (3031) and fixedly connected to the weight sensor (4013) fixedly connected to the bearing plate (302), and is used to detect the mass reduction rate information of the additive; The vibration detection unit is a vibration sensor (4014) used to detect vibration information of the supporting plate (302).

7. The low-energy consumption additive injection device for thermal power generation according to claim 6, characterized in that: The specific working mode of the control mechanism (4) is as follows: S1, obtaining air flow rate information A in the air duct (201), air flow rate information B in the main air duct (1), additive mass reduction rate information, and vibration information of the carrier plate (302) through flow rate detection unit A, flow rate detection unit B, and weight detection unit; S2, importing the air flow rate information A and the quality reduction speed information into the judgment module (403) and comparing them with the corresponding air flow rate threshold and the quality reduction speed threshold. If the air flow rate information A is not within the air flow rate threshold, the judgment module (403) generates judgment information for controlling the Roots blower. At this time, the control module (404) receives the judgment information for controlling the Roots blower and adjusts the power of the Roots blower until the air flow rate information A is within the air flow rate threshold. If the quality reduction speed information is not within the quality reduction speed threshold, the judgment module (403) generates control judgment information for the motor (3035). At this time, the control module (404) receives the judgment information for controlling the motor (3035), controls the motor (3035), and causes the motor (3035) to reverse and adjust the height of the carrier plate (302). Thereafter, the vibration frequency of the carrier plate (302) is further adjusted until the quality reduction speed information is within the quality reduction speed threshold. S3. Under the condition that the air flow rate information A and the mass reduction rate information are both within the corresponding threshold values, the air flow rate information A in the air duct (201), the air flow rate information B in the main air duct (1), the mass reduction rate information of the additive, and the vibration information of the support plate (302) are dimensionlessly processed and then introduced into the evaluation model, and the evaluation coefficient is output. The obtained evaluation coefficient is introduced into the judgment module (403) for corresponding comparison with the preset coefficient threshold value. If the evaluation coefficient is not within the coefficient threshold value, the judgment module (403) forms judgment information for controlling the motor and the Roots blower, and the control module (404) receives the judgment information for controlling the motor and the Roots blower and controls the two until the evaluation coefficient is within the coefficient threshold value.

8. The low-energy consumption additive injection device for thermal power generation according to claim 7, characterized in that: The expression of the evaluation model is: Among them, CH PG is the evaluation coefficient, V 粉 represents air flow rate information B, S represents the cross-sectional area of ​​the main air duct (1), V represents air flow rate information A, G represents quality drop rate information, f represents vibration information, V1 represents the average of the upper and lower limits of the air flow rate threshold, G1 represents the average of the upper and lower limits of the quality drop rate threshold, f1 represents the average of the upper and lower limits of the vibration threshold, μ represents the blowing quality influence factor, V2 represents the lower limit value of the air flow rate threshold, G2 represents the lower limit value of the quality drop rate threshold, and f2 represents the lower limit value of the vibration threshold.

Images