A monitoring device for optimizing unit operation mode
By designing a coal price monitoring table and a monitoring device for the control main board, the operating mode of the power plant units was optimized, the coal supply was adjusted, and the problem of high fuel costs was solved, achieving the effect of reducing unit fuel costs and minimizing power generation losses.
Patent Information
- Application Number
- CN202210476809.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-30
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2042-04-30
AI Technical Summary
In the existing technology, the monitoring devices for the operating modes of power plant units have not been effectively optimized, resulting in a high proportion of fuel costs and affecting the economic benefits of the power plant.
A monitoring device was designed, which included a coal price monitoring meter, a control mainboard and a power generation monitoring meter. The coal supply of the generator was adjusted through the control components, and the motor running speed was controlled by a computer program to adjust the transmission speed and coal input of the conveyor belt.
By optimizing the coal supply, the unit fuel cost is reduced, the power generation loss is reduced, and the economic benefits of the power plant are improved.
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Figure CN115041301B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of flue gas electrostatic dust removal, and in particular to a monitoring device for optimizing the operation mode of a unit. Background Art
[0002] The main elements of a power plant's sales revenue are electricity volume and electricity prices, including base electricity volume prices, transaction electricity volume prices, and other electricity volume prices. The price margin conditions discussed in this article are a tax-exclusive price of 377 yuan / kWh for the first phase and 361 yuan / kWh for the second phase.
[0003] Consumption associated with power generation includes fuel, desulfurization and denitrification materials, operating costs such as acids and alkalis, business taxes and surcharges, water resource fees levied on electricity consumption, desulfurization franchise fees, and management fees. Of these variable costs, unit fuel costs account for approximately 94%. The main factors influencing unit fuel costs are the unit price of standard coal and the overall coal consumption for power generation.
[0004] The current problem is to adjust the coal usage according to different power supply coal consumption prices. Summary of the Invention
[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.
[0006] In view of the above-mentioned problems existing in the existing monitoring device for optimizing the operation mode of the unit, the present invention is proposed.
[0007] Therefore, an object of the present invention is to provide a monitoring device for optimizing the operating mode of a unit.
[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a monitoring device for optimizing the operating mode of a unit, comprising: a unit, including a generator and a coal supply pipeline arranged on each of the generators; a monitoring component, including a coal price monitoring meter, a control main board connected to the coal price monitoring meter, and a power generation monitoring meter electrically connected to the control main board; and a control component, wherein the control component is arranged on each of the generators and electrically connected to the control main board.
[0009] As a preferred embodiment of the monitoring device for optimizing the operation mode of the unit according to the present invention, the coal supply pipeline includes an entry frame connected to the feed port of the generator, a conveyor belt connected to the entry frame, and a plurality of conveyor plates arranged on the conveyor belt.
[0010] The conveyor belt includes a first frame and a second frame connected to the first frame, a hinge is provided between the second frame, and the conveying plate is rotatably connected in the second frame.
[0011] As a preferred solution of the monitoring device for optimizing the unit operation mode described in the present invention, the hinged part includes an ear plate arranged at one end of the second frame, a matching block arranged at the other end of the second frame, and a rotating shaft arranged between the matching block and the ear plate.
[0012] As a preferred solution of the monitoring device for optimizing the operating mode of the unit as described in the present invention, wherein: the control component is arranged on the first frame, the first frame is provided with a receiving tube, the control component includes a bracket arranged in the receiving tube, an upper end plate arranged at the upper end of the bracket and a connecting tube arranged at the lower end of the bracket, a down-pressure rod is slidably connected in the connecting tube, a relative tube is provided at the lower end of the connecting tube, the relative tube and the connecting tube are located on the same straight line, the lower end of the down-pressure rod is provided with an elastic member, and the lower end of the down-pressure rod is provided with a pushing member.
[0013] As a preferred solution of the monitoring device for optimizing the operating mode of the unit as described in the present invention, the elastic member includes a base plate arranged at the lower end of the lower pressure rod and a spring arranged on the base plate, the other end of the spring is connected to the lower end of the connecting tube, and the lower end of the lower pressure rod is provided with a protruding end.
[0014] As a preferred solution of the monitoring device for optimizing the operating mode of the unit as described in the present invention, wherein: a toggle rod is rotatably connected in the upper end disk, a ratchet is rotatably connected in the upper end disk, a rotating wheel is provided on the upper end disk, a ratchet that cooperates with the ratchet is provided on the rotating wheel, an extension rod extends from the rotating wheel, an abutment rod is provided on the extension rod, a top rod that abuts the abutment rod extends outward from the end of the toggle rod, and a motor is provided at the rear end of the toggle rod.
[0015] As a preferred solution of the monitoring device for optimizing the operating mode of the unit described in the present invention, the end of the extension rod is provided with a first connecting block, the first connecting block is rotatably connected to the second connecting block, and a connecting rod extends from the second connecting block and is hinged to the upper end of the lower pressure rod.
[0016] As a preferred solution of the monitoring device for optimizing the operating mode of the unit described in the present invention, the pushing member includes a retaining ring arranged at the lower end of the lower pressure rod, a protruding rod arranged on the transmission plate, and a connecting plate arranged on the transmission plate, and an attraction plate is arranged between the connecting plate and the second frame.
[0017] As a preferred solution of the monitoring device for optimizing the operating mode of the unit described in the present invention, the control main board is electrically connected to the motor.
[0018] The beneficial effects of the present invention are as follows: the operator can use a computer to send a signal to each control component. Each control component will change the operating speed of the motor according to the operator's set program, and then adjust the rotation speed of the push rod. The faster the push rod rotates, the more frequently the pressure rod is pressed down. The transmission speed of the conveyor belt is certain. The more times it is pressed down, the more transmission plates are pushed, which in turn increases the amount of coal fed in. If the pressure rod is pressed down less frequently, the amount of coal fed in will decrease. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:
[0020] Figure 1 This is a schematic diagram of the overall structure of the monitoring device for optimizing the unit operation mode of the present invention.
[0021] Figure 2 This is a schematic diagram of the coal supply pipeline structure described in the monitoring device for optimizing the unit operation mode of the present invention.
[0022] Figure 3 This is a schematic diagram of the entry frame structure of the monitoring device for optimizing the unit operation mode of the present invention.
[0023] Figure 4 This is a schematic diagram of the control component structure of the monitoring device for optimizing the unit operation mode of the present invention.
[0024] Figure 5 This is an exploded schematic diagram of the internal structure of the rotating wheel described in the monitoring device for optimizing the unit operation mode of the present invention. DETAILED DESCRIPTION
[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.
[0028] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.
[0029] Example 1
[0030] Reference Figure 1-5 The present invention discloses a monitoring device for optimizing the operating mode of a unit 100, including a unit 100. The unit 100 is the main equipment for generating electricity in a power plant. In this embodiment, the unit 100 includes a generator 101 and a coal supply pipeline 102 provided on each generator 101. The coal supply pipeline 102 transports coal to the generator 101 and generates electricity by burning the coal.
[0031] Furthermore, the present invention also includes a monitoring component 200, which includes a coal price monitoring table 201. The coal price monitoring table 201 is connected to the external network via WLAN and WIFI, and can obtain the latest coal price from the network in real time. The coal price monitoring table 201 is connected to the operator's computer. The operator can use the computer to change, input or output the coal price display of the coal price monitoring table 201. A control mainboard 202 is connected to the coal price monitoring table 201. In this embodiment, the control mainboard 202 is arranged in a chassis in the operator's room. It is essentially the mainboard of the computer and can be installed with a graphics card, memory, hard disk and external devices through a USB interface. A power generation monitoring table 203 is electrically connected to the control mainboard 202. The power generation monitoring table 203 transmits the power generation data of all generators 101 and a single generator 101 in the plant area to the control mainboard 202 through a line. The operator can also monitor the power generation data using a computer.
[0032] Furthermore, the coal supply pipeline 102 includes an entry frame 102a connected to the feed port of the generator 101. Generally, coal-fired generators are provided with a funnel-shaped feed port on one side, and the entry frame 102a is placed horizontally at the upper end of the feed port. A conveyor belt 103 is provided in the entry frame 102a. The conveyor belt 103 is responsible for transporting coal and delivering the coal to each generator 101 separately.
[0033] Preferably, there are several conveying plates 102b on the conveyor belt 103, and several conveying plates 102b are provided, and the conveying plates 102b play a major role in receiving coal in industrial production.
[0034] In this embodiment, the conveyor belt 103 includes a first frame 103a and a second frame 103b connected to the first frame 103a. The first frame 103a is placed on the entry frame 102a, and the two are connected by bolts. A hinge 104 is provided between the second frame 103b and the second frame 103b, and the conveying plate 102b is rotatably connected in the second frame 103b. In this embodiment, the hinge 104 includes an ear plate 104a provided at one end of the second frame 103b, a matching block 104b provided at the other end of the second frame 103b, and a rotating shaft provided between the matching block 104b and the ear plate 104a. The purpose of setting the second frame 103b to be hinged is to facilitate the operator to disassemble the second frame 103b.
[0035] Specifically, the present invention also includes a control component 300, which is arranged on each generator 101 and is used to control the amount of coal entering, and the control component 300 is electrically connected to the control main board 202. In order to achieve control of different coal supply amounts for each generator 101, the control component 300 is installed at the position of each generator 101 located on the first frame 103a, and in order to achieve installation, a receiving tube 204 is provided on the first frame 103a, and the receiving tube 204 is vertically arranged.
[0036] It's worth noting that, after comprehensively analyzing the current situation and the cost of coal combustion and the marginal contribution to power generation, it can be determined that unit fuel costs currently account for approximately 94% of variable costs. The main factors influencing unit fuel costs are the unit price of standard coal and the overall power generation coal consumption. Control component 300 can then be used to control coal supply, thereby reducing power generation losses.
[0037] In this embodiment, the control component 300 includes a bracket 301 arranged in the receiving tube 204, the bracket 301 is arranged vertically, and an upper end plate 302 is arranged at the upper end of the bracket 301, and a connecting tube 303 is arranged at the lower end of the bracket 301, and a lower pressure rod 304 is slidably connected in the connecting tube 303, the lower pressure rod 304 is arranged vertically and slides in the vertical direction, and a pushing member 504 is arranged at the lower end of the lower pressure rod 304, when the lower pressure rod 304 moves downward, the pushing member 504 can be used to make the downward pressure of the lower pressure rod 304 drive the rotation of the conveying plate 102b, so that the coal on the conveying plate 102b falls into the feed port, and a relative tube 305 is arranged at the lower end of the connecting tube 303, and the relative tube 305 and the connecting tube 303 are located on the same straight line, and an elastic member 400 is arranged at the lower end of the lower pressure rod 304.
[0038] In this embodiment, the elastic member 400 includes a bottom plate 401 provided at the lower end of the lower pressure rod 304 and a spring 402 provided on the bottom plate 401. The other end of the spring 402 is connected to the lower end of the connecting tube 303, so that the lower pressure rod 304 will quickly return to its original position after moving downward.
[0039] Furthermore, a protruding end 403 is provided at the lower end of the lower pressure rod 304, and a toggle rod 404 is rotatably connected in the upper end plate 302, and the rotation plane of the toggle rod 404 is parallel to the surface of the upper end plate 302, and a ratchet 405 is rotatably connected in the upper end plate 302, and the rotation centers of the ratchet 405 and the toggle rod 404 are aligned, and a rotating wheel 406 is provided on the upper end plate 302, and the rotation center of the rotating wheel 406 is also aligned with the rotation center of the toggle rod 404.
[0040] Furthermore, the ratchet 405 is fixed on the upper end plate 302, and the rotating wheel 406 is also rotatably connected to the ratchet 405. An extension rod 408 is extended from the rotating wheel 406, and an abutment rod 409 is provided on the extension rod 408. The abutment rod 409 is arranged along the surface of the vertical extension rod 408, and a ratchet 407 is provided on the other side of the extension rod 408. The ratchet 407 cooperates with the ratchet 405, and a top rod 500 abuts against the abutment rod 409 is extended outward from the end of the toggle rod 404. When the toggle rod 404 is rotated, the top rod 500 will touch the abutment rod 409 and drive the abutment rod 409 to move, thereby driving the rotating wheel 406 to rotate, thereby realizing rotation, and a motor 501 is provided at the rear end of the toggle rod 404.
[0041] Furthermore, a first connecting block 502 is provided at the end of the extension rod 408, and a second connecting block 503 is rotatably connected to the first connecting block 502. A connecting rod extends from the second connecting block 503 and is hinged to the upper end of the lower pressure rod 304. Then, the rotation of the rotating wheel 406 will synchronously drive the lower pressure rod 304 to move downward, and a PLC control panel is provided between the motor 501 and the stepper motor 501.
[0042] In this embodiment, the pushing member 504 includes a retaining ring 504a provided at the lower end of the lower pressure rod 304, a protruding rod 504b provided on the transmission plate 102b, and a connecting plate 504c provided on the transmission plate 102b. A suction plate 505 is provided between the connecting plate 504c and the second frame 103b. The control main board 202 is electrically connected to the motor 501. According to the different coal prices every day, the operator can use the computer to send a signal to each control component 300. Each control component 300 will change the operating speed of the motor 501 according to the operator's setting program, and then adjust the rotation speed of the push rod 500. The faster the push rod 500 rotates, the more frequently the lower pressure rod 304 is pressed down, and the transmission speed of the conveyor belt 103 is fixed. The more times it is pressed down, the more transmission plates 102b are pushed, which in turn increases the amount of coal input. The fewer times the lower pressure rod 304 is pressed down, the less coal input will be.
[0043] Operation process: The operator starts the motor 501 and the stepper motor 501 through the PLC control panel. When the motor 501 is started, the motor 501 drives the rotation of the toggle rod 404. When the top rod 500 on the toggle rod 404 rotates to the position of the abutment rod 409, the top rod 500 on the toggle rod 404 drives the rotation of the rotating wheel 406. When the rotating wheel 406 rotates, it drives the ratchet 407 to move on the ratchet 405. The initial position of the abutment rod 409 is in the middle and upper position of the ratchet 405. When the moving wheel 406 moves, it will rotate in the clockwise direction, and after the rotation, it will push the lower pressure rod 304 downward, and then as the ratchet 407 moves on the ratchet 405, and because of the upward force of the spring 402, it will continue to push the rotation of the rotating wheel 406, and the rotation will continue to rotate clockwise due to the ratchet 407, thereby driving the reset of the lower pressure rod 304, and the rotation speed of the toggle rod 404 is lower than the rotation speed of the rotating wheel 406, and it will return to its initial position in the upper middle position of the ratchet 405.
[0044] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0045] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.
[0046] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.
[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. A monitoring device for optimizing the operation mode of a unit, characterized by: include, A generator set (100) includes a generator (101) and a coal supply pipeline (102) provided on each generator (101); A monitoring component (200) includes a coal price monitoring meter (201), a control mainboard (202) connected to the coal price monitoring meter (201), and a power generation monitoring meter (203) electrically connected to the control mainboard (202); as well as, A control assembly (300) is provided on each of the generators (101) and is electrically connected to the control main board (202). The control assembly (300) comprises a bracket (301) provided in a receiving tube (204), an upper end plate (302) provided at the upper end of the bracket (301), and a connecting tube (303) provided at the lower end of the bracket (301). A lower pressure rod (304) is slidably connected in the connecting tube (303). A relative tube (305) is provided at the lower end of the connecting tube (303). The counter cylinder (305) and the auxiliary cylinder are located on the same straight line, the lower end of the lower pressure rod (304) is provided with an elastic member (400), the lower end of the lower pressure rod (304) is provided with a pushing member (504), the pushing member (504) includes a clamping ring (504a) provided at the lower end of the lower pressure rod (304), a protruding rod (504b) provided on the transmission plate (102b), and a connecting plate (504c) provided on the transmission plate (102b), and an attraction plate (505) is provided between the connecting plate (504c) and the second frame (103b).
2. The monitoring device for optimizing the unit operation mode according to claim 1, characterized in that: The coal supply pipeline (102) comprises an entry frame (102a) connected to the feed port of the generator (101), a conveyor belt (103) connected to the entry frame (102a), and a plurality of conveyor plates (102b) arranged on the conveyor belt (103). The conveyor belt (103) includes a first frame (103a) and a second frame (103b) connected to the first frame (103a), a hinge (104) is provided between the second frame (103b), and the conveying plate (102b) is rotatably connected in the second frame (103b).
3. The monitoring device for optimizing the unit operation mode according to claim 2, characterized in that: The hinge (104) comprises an ear plate (104a) arranged at one end of the second frame (103b), a matching block (104b) arranged at the other end of the second frame (103b), and a rotation axis arranged between the matching block (104b) and the ear plate (104a).
4. The monitoring device for optimizing the unit operation mode according to claim 2, characterized in that: The control assembly (300) is arranged on a first frame (103a), and a receiving tube (204) is arranged on the first frame (103a).
5. The monitoring device for optimizing the unit operation mode according to claim 4, characterized in that: The elastic member (400) includes a bottom plate (401) arranged at the lower end of the lower pressure rod (304) and a spring (402) arranged on the bottom plate (401), the other end of the spring (402) is connected to the lower end of the connecting tube (303), and the lower end of the lower pressure rod (304) is provided with a protruding end (403).
6. The monitoring device for optimizing the unit operation mode according to claim 5, characterized in that: A toggle rod (404) is rotatably connected in the upper end disc (302), a ratchet (405) is rotatably connected in the upper end disc (302), a rotating wheel (406) is provided on the upper end disc (302), a ratchet (407) matched with the ratchet (405) is provided on the rotating wheel (406), an extension rod (408) extends from the rotating wheel (406), an abutting rod (409) is provided on the extension rod (408), a top rod (500) extends outward from the end of the toggle rod (404) and abuts against the abutting rod (409), and a motor (501) is provided at the rear end of the toggle rod (404).
7. The monitoring device for optimizing the unit operation mode according to claim 6, characterized in that: The end of the extension rod (408) is provided with a first connecting block (502), the first connecting block (502) is rotatably connected to a second connecting block (503), and a connecting rod extends from the second connecting block (503) and is hinged to the upper end of the lower pressure rod (304).
8. The monitoring device for optimizing the unit operation mode according to claim 1 or 5, characterized in that: The control mainboard (202) is electrically connected to the motor (501).
Citation Information
Patent Citations
Smart grid broadcast system and method
CN102156918A
Quantitative fire coal conveying device for coal-fired power plant
CN212953195U