A fuel delivery device for a thermal power plant

Abstract

The application relates to the technical field of fuel conveying of thermal power plants, in particular to a fuel conveying device for a thermal power plant. The device comprises a conveying unit, a pressurizing unit and a lubricating unit. The conveying unit comprises a support, a tightening frame arranged on the support, a shaft arranged on the support and an auxiliary roller arranged on the shaft. The pressurizing unit comprises a storage tank arranged on the support, a swing assembly arranged on the universal assembly and an air inlet assembly arranged on the storage tank. When the conveying unit is in contact with the pressurizing unit, the storage tank of the pressurizing unit can maintain a slightly high pressure state, so that the lubricating oil of the pressurizing unit can enter the flow unit. The flow unit is in contact with the rolling element, and the rolling element can enter the rolling element every time to lubricate the shaft, so that artificial single lubrication is not needed, and the workload is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fuel conveying in thermal power plants, and in particular to a fuel conveying device for thermal power plants. BACKGROUND

[0002] The belt conveyor can realize high-speed continuous transportation, improve production efficiency and transportation capacity, ensure rapid and accurate conveying of materials, can carry a large amount of materials, and is suitable for large-scale fuel transportation demand. The wide application of the belt conveyor in fuel transportation in thermal power plants, its high efficiency, energy saving, environmental protection characteristics, and adaptability to different working conditions make it an ideal fuel conveying equipment for thermal power plants.

[0003] However, the existing belt conveyor needs to be maintained regularly when not in use, especially the lubrication of the conveying roller. Otherwise, the conveying belt may deviate during transportation. The reason is that the transmission roller is rusted due to long-term non-use. The traditional regular maintenance needs to be lubricated manually, which is extremely time-consuming and labor-intensive, making maintenance difficult. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title. Such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above-mentioned problem of troublesome maintenance and lubrication of the roller body of the belt conveyor, the present application is proposed.

[0006] Therefore, the purpose of the present application is to provide a fuel conveying device for thermal power plants.

[0007] To solve the above technical problems, the present application provides the following technical solutions: a fuel conveying device for thermal power plants, comprising a conveying unit, a support, a tightening frame arranged on the support, a roller frame arranged on the tightening frame, a supporting plate arranged on the roller frame, a roller body arranged on the supporting plate, an auxiliary roller arranged on the roller body, and a conveying belt arranged on the auxiliary roller.

[0008] The charging unit comprises a storage tank arranged on the support, a fitting assembly arranged on the storage tank, a universal assembly arranged on the fitting assembly, a swing assembly arranged on the universal assembly, and an air inlet assembly arranged on the storage tank.

[0009] As a preferred scheme of the fuel conveying device for thermal power plant, the fitting assembly comprises a support plate arranged on the storage tank, a groove arranged on the support plate, a sliding groove arranged on the groove, a sliding block arranged on the sliding groove, and a fitting wheel arranged on the sliding block.

[0010] As a preferred scheme of the fuel conveying device for thermal power plant, the universal assembly comprises a rotating shaft arranged on the fitting wheel, a universal joint arranged on the rotating shaft, a fixing plate arranged on the storage tank, and a transmission shaft arranged on the fixing plate and connected with the universal joint.

[0011] As a preferred scheme of the fuel conveying device for thermal power plant, the swinging assembly comprises a disc arranged on the transmission shaft, a fixing rod arranged on the disc, and a connecting rod arranged on the fixing rod.

[0012] As a preferred scheme of the fuel conveying device for thermal power plant, the air inlet assembly comprises an air inlet column arranged on the storage tank, a first piston block arranged on the air inlet column, a through groove arranged on the first piston block, a sliding rod arranged on the through groove, and a second piston block arranged on the sliding rod.

[0013] As a preferred scheme of the fuel conveying device for thermal power plant, the fuel conveying device further comprises,

[0014] The circulating unit comprises a circulating assembly arranged on the storage tank, a fixing assembly arranged on the supporting plate, a pressure receiving assembly arranged on the supporting plate, and an injection assembly arranged on the supporting plate.

[0015] As a preferred scheme of the fuel conveying device for thermal power plant, the circulating assembly comprises a conveying pipe arranged on the storage tank, and a cavity arranged on the supporting plate.

[0016] As a preferred scheme of the fuel conveying device for thermal power plant, the fixing assembly comprises an inner ring arranged on the shaft, a rolling element arranged on the inner ring, an outer ring arranged on the rolling element, a circular hole arranged on the outer ring, a transverse plate arranged on the outer ring, and a tightening groove arranged on the supporting plate.

[0017] As a preferred scheme of the fuel conveying device for thermal power plant, the pressure receiving assembly comprises a pressure receiving rod arranged on the supporting plate, a matching block arranged on the cavity, a moving block arranged on the pressure receiving rod, and a restoring spring arranged on the cavity and connected with the moving block.

[0018] As a preferred scheme of the fuel conveying device of the thermal power plant, the injection assembly comprises a circular groove arranged on the moving block, a fixing frame arranged on the circular groove, a fixing spring arranged on the fixing frame, and a baffle arranged on the fixing spring.

[0019] The present application has the following advantages: the charging unit is in contact with the conveying unit, so that the storage tank of the charging unit can maintain a slightly high pressure state when the conveying unit conveys fuel, and the lubricating oil of the charging unit can enter the flow unit. The flow unit is in contact with the rolling element, and each contact can make a small amount of lubricating oil enter the rolling element, thereby lubricating the shaft body. Artificial single lubrication is no longer needed, and the workload is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a schematic diagram of a fuel conveying device of a thermal power plant.

[0022] Figure 2 It is an enlarged view of A in Figure 1

[0023] Figure 3 It is a schematic diagram of a thermal power plant fuel conveying device.

[0024] Figure 4 It is a schematic diagram of a thermal power plant fuel conveying device.

[0025] Figure 5 It is a schematic diagram of a thermal power plant fuel conveying device.

[0026] Figure 6 It is a schematic diagram of a thermal power plant fuel conveying device.

[0027] Figure 7 It is an enlarged view of B in Figure 6

[0028] Figure 8 It is an enlarged view of C in Figure 6

[0029] Figure 9 It is a schematic diagram of a thermal power plant fuel conveying device. DETAILED DESCRIPTION ​​​

[0030] In order to make the above objectives, features and advantages of the present application more obvious and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0031] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0032] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments.

[0033] Thirdly, the present application is described in detail in conjunction with the schematic drawings, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic drawings are only examples, which should not limit the scope of protection of the present application herein. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0034] Embodiment 1

[0035] Reference Figure 1 For the first embodiment of the present application, the embodiment provides a thermal power plant fuel conveying device, comprising a conveying unit 100, a pressure charging unit 200 and a flow unit 300, the conveying unit 100 is used to convey fuel, when the conveying unit 100 starts to convey, the pressure charging unit 200 contacts the conveying belt 107 of the conveying unit 100, and the conveying belt 107 drives the pressure charging unit 200 to drive, so that the pressure of the storage tank 201 of the pressure charging unit 200 gradually rises, and the lubrication of the conveying unit 100 is completed by lubricating the auxiliary roller 105 through the flow unit 300.

[0036] Specifically, the conveying unit 100 comprises a support 101, a plurality of groups of tightening frames 102 are installed on the top of the support 101, which are arranged according to the actual conveying distance of the thermal power plant fuel, a roller frame 103 is installed on the top of the tightening frame 102, a supporting plate 104 is installed on the top of the roller frame 103, the supporting plate 104 is provided with a mounting groove on the top side, which is used to embed the auxiliary roller 105, so that the shaft body 106 on the auxiliary roller 105 is installed on the supporting plate 104, and the conveying belt 107 is laid on the auxiliary roller 105, which is driven by the motor, and is assisted and supported by the auxiliary roller 105 in the process, so as to realize the conveying of the fuel.

[0037] The operation process is as follows: when the fuel is conveyed, the driving device of the belt conveyor is started, the conveying belt 107 moves along the predetermined path, the material is moved forward under the driving of the conveying belt 107, in the conveying process, the conveying belt 107 is supported and guided by a series of auxiliary rollers 105, which ensures stable operation, and after the material reaches the end of the conveying belt 107, it naturally falls into the storage point.

[0038] Embodiment 2

[0039] Referring to Figures 1-4 For the second embodiment of the application, which is different from the first embodiment: the pressurizing unit 200 comprises a storage tank 201 arranged on the support 101, a top of the storage tank 201 is provided with a fitting assembly 202, the fitting assembly 202 is kept in contact with the conveying belt 107, one end of the fitting assembly 202 is provided with a universal assembly 203, one end of the universal assembly 203 is provided with a swing assembly 204, a top of the storage tank 201 is provided with an air inlet assembly 205, the storage tank 201 stores lubricating oil, the fitting assembly 202 moves with the conveying belt 107 to drive the universal assembly 203 to move, the universal assembly 203 drives the swing assembly 204 to move, the swing assembly 204 drives the air inlet assembly 205 to move, the air inlet assembly 205 circulates and pressurizes the storage tank 201, so that the storage tank 201 maintains a slightly high pressure state when the conveying belt 107 moves, so that the lubricating oil can enter the circulating unit 300.

[0040] Specifically, the fitting assembly 202 comprises a support plate 202a arranged on the storage tank 201, a groove 202b is formed in the outer wall of the support plate 202a, a sliding groove 202c is formed in the inner wall of the groove 202b, a sliding block 202d is arranged on the inner wall of the sliding groove 202c, a fitting wheel 202e is movably connected to the sliding block 202d, a support spring 202f is arranged on the inner bottom wall of the groove 202b, the support spring 202f applies an upward elastic force to the sliding block 202d, so that the fitting wheel 202e on the sliding block 202d can always be in contact with the conveying belt 107, and when the weight of the fuel on the top side of the conveying belt 107 changes, the support spring 202f on the support plate 202a can keep the fitting wheel 202e in contact with the conveying belt 107, ensuring the rotation transmission of the fitting wheel 202e.

[0041] Further, the universal assembly 203 comprises a rotating shaft 203a arranged on the fitting wheel 202e, a universal joint 203b is arranged at one end of the rotating shaft 203a, a fixed plate 203c is arranged on the top of the storage tank 201, a transmission shaft 203d is arranged on the fixed plate 203c and connected with the universal joint 203b, the rotating shaft 203a rotates to drive the transmission shaft 203d to rotate through the universal joint 203b, and then the transmission direction is turned.

[0042] Further, the swing assembly 204 comprises a disc 204a arranged on the transmission shaft 203d, an outer wall of the disc 204a is provided with a fixed rod 204b, an outer wall of the fixed rod 204b is provided with a connecting rod 204c, the disc 204a rotates to drive the fixed rod 204b to move in rotation, and the fixed rod 204b moves in rotation to drive the connecting rod 204c to swing up and down.

[0043] Further, the air inlet assembly 205 comprises an air inlet column 205a arranged on the storage tank 201, an inner wall of the air inlet column 205a is provided with a first piston block 205b, a top of the first piston block 205b is provided with a through slot 205c, an inner wall of the through slot 205c is provided with a sliding rod piece 205d, and a second piston block 205e arranged on the sliding rod piece 205d, when the second piston block 205e moves upward, the sliding rod piece 205d moves to the limit distance in the through slot 205c to pull the first piston block 205b to move upward, at this time, the second piston block 205e is separated from the first piston block 205b, the through slot 205c is opened, so that the second piston block 205e will not cause the negative pressure in the storage tank 201 when moving upward with the first piston block 205b, when the second piston block 205e moves downward, the second piston block 205e is embedded in the through slot 205c, at this time, the first piston block 205b is integrated with the second piston block 205e.

[0044] The remaining structure is the same as that of example 1.

[0045] Operation process: the supporting spring enables the matching wheel 202e to be tensioned up and down, so that the matching wheel 202e is always matched with the lower end of the conveying belt 107, when the conveying belt 107 conveys, the conveying belt 107 drives the matching wheel 202e to rotate, the matching wheel 202e drives the rotating shaft 203a to rotate, the rotating shaft 203a drives the transmission shaft 203d to rotate through the universal joint 203b, the transmission shaft 203d drives the disc 204a to rotate, the disc 204a drives the fixed rod 204b to move in rotation, the fixed rod 204b drives the connecting rod 204c to swing up and down, the connecting rod 204c is movably connected with the top of the second piston block 205e, when the second piston block 205e moves upward, the second piston block 205e is separated from the first piston block 205b, at this time, the through slot 205c is opened, so that the second piston block 205e will not cause the negative pressure in the storage tank 201 when moving upward with the first piston block 205b, when the second piston block 205e moves downward, the second piston block 205e is embedded in the through slot 205c, at this time, the first piston block 205b is integrated with the second piston block 205e, at this time, the gas in the air inlet column 205a is extruded into the storage tank 201, so that the gas pressure in the storage tank 201 is increased, and the lubricating oil stored in the storage tank 201 is affected by the gas pressure to enter the injection unit.

[0046] Embodiment 3

[0047] With reference to Figures 5-8 For the third embodiment of the present application, which is different from the above embodiments, it further comprises the flow unit 300, which comprises the flow assembly 301 arranged on the storage box 201, the fixing assembly 302 arranged on the supporting plate 104, the fixing assembly 302 being used for connecting the shaft body 106, the inside of the supporting plate 104 being provided with the pressure receiving assembly 303, the lubricating oil of the pressure receiving assembly 303 entering the inside of the fixing assembly 302 through the injection assembly 304 when the pressure receiving assembly 303 is pressed by the fixing assembly 302, and further lubricating the rolling element 302b.

[0048] Specifically, the flow assembly 301 comprises the transportation pipe 301a arranged on the storage box 201, and the cavity 301b arranged on the supporting plate 104, the transportation pipe 301a being connected with each supporting plate 104, and the inside of each group of supporting plates 104 being provided with the cavity 301b, and the cavity 301b temporarily storing the lubricating oil.

[0049] Further, the fixing assembly 302 comprises the inner ring 302a arranged on the shaft body 106, the rolling element 302b mounted on the inner ring 302a, the outer ring 302c mounted on the outer side of the rolling element 302b, the outer ring 302c, the rolling element 302b and the inner ring 302a forming a bearing, the bottom side of the outer ring 302c being provided with the circular hole 302d, the pressure receiving rod 303a being embedded into the bottom side of the rolling element 302b through the circular hole 302d, the outer wall of the outer ring 302c being provided with the horizontal plate 302e, the inner wall of the supporting plate 104 being provided with the tightening groove 302f, the horizontal plate 302e being embedded into the tightening groove 302f, and the circular hole 302d being accurately positioned to the top side of the pressure receiving rod 303a through the installation of the tightening groove 302f and the horizontal plate 302e.

[0050] Further, the pressure receiving assembly 303 comprises the pressure receiving rod 303a arranged on the supporting plate 104, the cooperating block 303b mounted on the inside top wall of the cavity 301b, the moving block 303c mounted on the bottom of the pressure receiving rod 303a, the moving block 303c being embedded into the bottom of the cooperating block 303b, the pressure receiving rod 303a extending into the inside of the cavity 301b, and the restoring spring 303d arranged on the cavity 301b and connected with the moving block 303c, the restoring spring 303d exerting upward elastic force on the pressure receiving rod 303a.

[0051] Further, the injection assembly 304 comprises a circular groove 304a arranged on the moving block 303c, a fixing frame 304b arranged on the circular groove 304a, a fixing spring 304c mounted on the top of the fixing frame 304b, a baffle 304d mounted on the top of the fixing spring 304c, the fixing spring 304c pulls the baffle 304d downward, so that the top side of the circular groove 304a is shielded by the baffle 304d, and when the moving block 303c moves upward, the lubricating oil on the top side of the moving block 303c cannot flow back into the cavity 301b through the circular groove 304a.

[0052] The remaining structures are the same as those in Embodiment 2.

[0053] Operation process: one set of the storage box 201 is provided with three sets of the conveying pipe 301a, the lubricating oil in the storage box 201 enters the cavity 301b opened on the supporting plate 104 through the conveying pipe 301a, and when the conveying belt 107 conveys the fuel, the rolling element 302b cyclically touches and presses the pressure bar 303a on the bottom side, so that the pressure bar 303a keeps a certain moving range to move up and down, when the pressure bar 303a moves downward, the pressure bar 303a drives the moving block 303c to move, the moving block 303c moves downward from the inside of the cooperating block 303b, so that the lubricating oil in the cavity 301b is extruded by the moving block 303c and enters the moving gap on the top of the moving block 303c through the circular groove 304a, then when the pressure bar 303a moves upward, the pressure bar 303a drives the moving block 303c to move upward, so that the lubricating oil on the top of the moving block 303c is pressed between the cooperating block 303b and the moving block 303c and enters the rolling element 302b through the installation channel of the pressure bar 303a, so that a small amount of lubricating oil enters the rolling element 302b with each movement of the pressure bar 303a, so that the rolling element 302b can be lubricated, and the conveying unit 100 no longer needs to be artificially lubricated and maintained, thereby reducing the workload of the staff.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not limit the present application. Although the present application 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 application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A fuel delivery apparatus for a thermal power plant, characterized by: Including, The conveying unit (100) comprises a support (101), a tightening frame (102) arranged on the support (101), a roller frame (103) arranged on the tightening frame (102), a supporting plate (104) arranged on the roller frame (103), a shaft body (106) arranged on the supporting plate (104), an auxiliary roller (105) arranged on the shaft body (106), and a conveying belt (107) arranged on the auxiliary roller (105); The pressurizing unit (200) comprises a storage box (201) arranged on the support (101), a fitting assembly (202) arranged on the storage box (201), a universal assembly (203) arranged on the fitting assembly (202), a swing assembly (204) arranged on the universal assembly (203), and an air inlet assembly (205) arranged on the storage box (201); The fitting assembly (202) comprises a supporting plate (202a) arranged on the storage box (201), a groove body (202b) arranged on the supporting plate (202a), a sliding groove (202c) arranged on the groove body (202b), a sliding block (202d) arranged on the sliding groove (202c), and a fitting wheel (202e) arranged on the sliding block (202d); The universal assembly (203) comprises a rotating shaft (203a) arranged on the fitting wheel (202e), a universal joint (203b) arranged on the rotating shaft (203a), a fixed plate (203c) arranged on the storage box (201), and a transmission shaft (203d) arranged on the fixed plate (203c) and connected with the universal joint (203b); The swing assembly (204) comprises a disc (204a) arranged on the transmission shaft (203d), a fixed rod (204b) arranged on the disc (204a), and a connecting rod (204c) arranged on the fixed rod (204b); Further comprising a flow unit (300) comprising a flow assembly (301) arranged on the storage box (201), a fixed assembly (302) arranged on the supporting plate (104), a pressure receiving assembly (303) arranged on the supporting plate (104), and an injection assembly (304) arranged on the supporting plate (104); The storage box (201) stores lubricating oil, the fitting assembly (202) moves with the conveying belt (107) to drive the universal assembly (203) to move, the universal assembly (203) moves to drive the swing assembly (204) to move, the swing assembly (204) drives the air inlet assembly (205) to move, and the air inlet assembly (205) performs cyclic pressure injection on the storage box (201).

2. The thermal power plant fuel delivery apparatus of claim 1, wherein: The air inlet assembly (205) comprises an air inlet column (205a) arranged on the storage tank (201), a first piston block (205b) arranged on the air inlet column (205a), a through groove (205c) arranged on the first piston block (205b), a sliding rod piece (205d) arranged on the through groove (205c), and a second piston block (205e) arranged on the sliding rod piece (205d).

3. The fuel delivery apparatus for a thermal power plant of claim 2, wherein: The flow assembly (301) comprises a transport pipe (301a) arranged on the storage tank (201), and a cavity (301b) arranged on the supporting plate (104).

4. The thermal power plant fuel delivery apparatus of claim 3, wherein: The fixing assembly (302) comprises an inner ring (302a) arranged on the shaft body (106), a rolling element (302b) arranged on the inner ring (302a), an outer ring (302c) arranged on the rolling element (302b), a circular hole (302d) arranged on the outer ring (302c), a transverse plate (302e) arranged on the outer ring (302c), and a tightening groove (302f) arranged on the supporting plate (104).

5. The thermal power plant fuel delivery apparatus of claim 4, wherein: The pressure receiving assembly (303) comprises a pressure receiving rod (303a) arranged on the supporting plate (104), a matching block (303b) arranged on the cavity (301b), a moving block (303c) arranged on the pressure receiving rod (303a), and a restoring spring (303d) arranged on the cavity (301b) and connected with the moving block (303c).

6. The thermal power plant fuel delivery apparatus of claim 5, wherein: The injection assembly (304) comprises a circular groove (304a) arranged on the moving block (303c), a fixing frame (304b) arranged on the circular groove (304a), a fixing spring (304c) arranged on the fixing frame (304b), and a baffle (304d) arranged on the fixing spring (304c).

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