A steam supply safety monitoring device for a thermal power unit under deep peak shaving working condition

Abstract

The application discloses a kind of steam supply safety monitoring devices under deep peak regulation working condition of thermal power generating unit, including support component, including installation assembly, and the foundation component being set on the installation assembly;Monitoring component, including the connecting assembly being set on the foundation component, and the monitoring assembly being set on the foundation component;Drainage component, including the plugging assembly being set on the connecting assembly, the drainage assembly being set in the foundation component, and the sealing assembly being set on the drainage assembly.The steam supply safety monitoring device under deep peak regulation working condition of thermal power generating unit can drive plugging plate and branch pipe to move when moving plate moves up and down, when the device alarms, plugging plate moves up and blocks the steam supply channel, at the same time, branch pipe also moves up and enters support steam hole, realizes that false alarm caused by pipe leakage can be eliminated while safety monitoring.

Description

Technical Field

[0001] This invention relates to the technical field of monitoring equipment, and in particular to a safety monitoring device for external steam supply under deep peak shaving conditions of thermal power units. Background Technology

[0002] Deep peak shaving operation of thermal power units refers to the rapid start-up or load increase of thermal power units to meet system demand when the power system load suddenly increases. External steam supply safety monitoring device refers to the device used to detect whether the steam supply is normal, thereby realizing the monitoring of the operation of the device.

[0003] Currently, there are still shortcomings in the existing safety monitoring devices for external steam supply. For example, when monitoring, the existing safety monitoring devices can only detect abnormalities inside the steam supply pipeline, but cannot rule out whether the device is issuing a false alarm due to pipeline leakage. This needs to be improved. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problem that existing safety monitoring devices for external steam supply under deep peak shaving conditions of thermal power units cannot detect whether the device issues a false alarm due to pipeline leakage, this invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a support component including an installation component and a base component disposed on the installation component; a monitoring component including a connection component disposed on the base component and a monitoring component disposed on the base component; a drainage component including a blocking component disposed on the connection component, a drainage component disposed inside the base component, and a sealing component disposed on the drainage component; and a control component including a limiting component disposed on the blocking component and a limiting component disposed on the limiting component.

[0007] As a preferred embodiment of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions described in this invention, the installation component includes an installation plate, fixing holes and installation grooves provided on the installation plate.

[0008] As a preferred embodiment of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions described in this invention, the basic components include a monitoring instrument installed inside the mounting slot, a screen installed on the monitoring instrument, and buttons.

[0009] As a preferred embodiment of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions described in this invention, the connecting assembly includes a steam supply channel disposed inside the monitor, connectors disposed on both sides of the steam supply channel, and fixing plates and threaded sleeves disposed on the connectors.

[0010] As a preferred embodiment of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions described in this invention, the monitoring component includes a mounting slot disposed inside the monitoring instrument, a pressure detector disposed inside the mounting slot, and a buzzer and a flashing light disposed inside the monitoring instrument.

[0011] As a preferred embodiment of the external steam supply safety monitoring device under deep peak shaving conditions of thermal power units described in this invention, the sealing component includes a groove disposed inside the monitor, a movable plate disposed inside the groove, a sealing plate disposed on the movable plate, and a sealing groove disposed on the inner wall of the steam supply channel.

[0012] As a preferred embodiment of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions described in this invention, the sealing assembly includes a sliding groove disposed inside the groove, a sealing block disposed inside the sliding groove, a sealing spring disposed on the right side of the sealing block, and a sealing plate disposed inside the groove.

[0013] As a preferred embodiment of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions described in this invention, the diversion component includes a steam branch hole disposed inside the steam supply pipeline and on the sealing plate, and a branch pipeline disposed on the movable plate.

[0014] As a preferred embodiment of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions described in this invention, the limiting component includes a limiting hole disposed on the groove, a limiting groove disposed inside the limiting hole, a rotating rod disposed on the lower side of the moving plate, a control rod disposed on the rotating rod, and a limiting block disposed between the rotating rod and the control rod.

[0015] As a preferred embodiment of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions described in this invention, the limiting component includes a limiting hole disposed in the middle of the limiting block, a cavity disposed on the control rod, a limiting rod disposed inside the cavity, a limiting block disposed on the limiting rod, and a limiting spring disposed on the outer wall of the limiting rod.

[0016] The beneficial effects of this invention are as follows: By pushing the limiting rod upward, the limiting block disengages from the limiting hole, allowing the limiting block to rotate within the limiting groove. When the limiting block rotates, the limiting groove releases the restriction on the rotating rod and control rod, enabling the moving plate to move up and down. This movement of the moving plate moves the sealing plate and branch pipe. When an alarm is triggered, the sealing plate moves upward to block the steam supply channel, preventing steam from passing through. Simultaneously, the branch pipe moves upward into the branch steam hole, squeezing the sealing block and causing it to move to the right, connecting the steam supply channel and the branch pipe. This allows the device to continue operating normally. If the internal air pressure returns to normal after the branch pipe is connected, it indicates a pipe leak. If the air pressure remains abnormal after connection, it indicates a problem with the device. This invention achieves both safety monitoring and the elimination of false alarms caused by pipe leaks. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions according to the present invention.

[0019] Figure 2 This is a schematic diagram of the installation components of the safety monitoring device for external steam supply under deep peak shaving conditions of thermal power units according to the present invention.

[0020] Figure 3 This is a schematic diagram of the sealing component structure of the external steam supply safety monitoring device for thermal power units under deep peak shaving conditions according to the present invention.

[0021] Figure 4 This is a schematic diagram of the limiting component structure of the safety monitoring device for external steam supply under deep peak shaving conditions of thermal power units according to the present invention. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used 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 different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0026] Example 1, referring to Figures 1-4 This is the first embodiment of the present invention, which provides a safety monitoring device for external steam supply under deep peak shaving conditions of thermal power units. The device includes a support component 100, an installation component 101 for installation and fixing, and a base component 102 set on the installation component 101. The base component 102 is used to display the data detected by the display device and to debug the device.

[0027] Furthermore, the monitoring component 200 includes a connection component 201 disposed on the base component 102, the connection component 201 being used to connect the thermal power unit and the external steam supply channel, and a monitoring component 202 disposed on the base component 102, wherein the detection component is used to detect the interior of the connection component 201.

[0028] Furthermore, the diversion component 300 includes a sealing component 301 disposed on the connecting component 201, wherein the sealing component 301 is used to seal the steam supply passage 201a inside the connecting component 201; a diversion component 302 disposed inside the base component 102, which is mainly used to divert water from the internal pipe when the sealing component 301 is sealing; and a sealing component 303 disposed on the diversion component 302, which is used to seal the steam branch hole 303a when the diversion component 302 is not connected to the outside.

[0029] Furthermore, the control component 400 includes a limiting component 401 disposed on the blocking component 301, the limiting component 401 being mainly used to limit the up and down movement of the blocking component 301, and a limiting component 402 disposed on the limiting component 401, the limiting component 402 being mainly used to limit the limiting component 401, so that the limiting component 401 can limit the blocking component 301.

[0030] In summary: By limiting the restricting component 401 with the limiting component 402, the blocking component 301 can move along with the restricting component 401 after the limiting component 402 is released, thereby blocking the internal channel of the connecting component 201 and achieving internal pipe sealing. As the blocking component 301 moves, it also drives the diversion component 302 to move, allowing the diversion component 302 to divert water from the internal channel. If the detection device returns to normal after diversion, it indicates that there is a leak in the steam supply pipeline. If it does not return to normal, it indicates that there is a problem with the equipment. This allows the detection component to determine whether there is a leak in the pipeline.

[0031] Example 2, refer to Figures 1-3 The second embodiment of the present invention includes: further, the mounting assembly 101 includes a mounting plate 101a, a fixing hole 101b disposed on the mounting plate 101a and a mounting groove 101c, wherein the fixing hole 101b is used to fix the mounting plate 101a in the position to be fixed with expansion screws, and the mounting groove 101c is used to fix the monitoring instrument 102a inside the base assembly 102.

[0032] Preferably, the shape of the mounting slot 101c perfectly matches the shape of the monitor 102a body, making the connection between the mounting slot 101c and the monitor 102a more stable.

[0033] Furthermore, the basic component 102 includes a monitor 102a disposed inside the mounting slot 101c, a screen 102b disposed on the monitor 102a, and a button 102c.

[0034] Preferably, screen 102b is used to display the data monitored by the device, and button 102c is used to debug monitor 102a.

[0035] Furthermore, the connection assembly 201 includes a steam supply channel 201a disposed inside the monitor 102a, connectors 201b disposed on both sides of the steam supply channel 201a, and a fixing piece 201c and a threaded sleeve 201d disposed on the connectors 201b.

[0036] The connector 201b is used to connect to the steam supply pipeline and the thermal power unit, so that the equipment can monitor the inside of the pipeline. The fixing plate 201c and the threaded sleeve 201d are used to reinforce the connection of the connector 201b. The steam supply channel 201a is used to allow the gas to pass through normally, and at the same time, it is convenient for the monitoring instrument 102a to monitor.

[0037] Furthermore, the monitoring component 202 includes a mounting slot 202a disposed inside the monitoring instrument 102a, a pressure detector 202b disposed inside the mounting slot 202a, and a buzzer 202c and a flashing light 202d disposed inside the monitoring instrument 102a.

[0038] The placement slot 202a is used to place the pressure detector 202b in the equipment, the buzzer 202c is used to sound to remind on-site personnel, and the flashing light 202d is mainly used to work with the buzzer to alarm the site.

[0039] Preferably, after the device is installed, the steam supply channel 201a is connected to the pipeline, and the pipeline is monitored by the pressure detector 202b in the device. When the internal pressure is constant, the value inside the pressure detector 202b remains unchanged. When a pipeline leak occurs, the pressure detector 202b changes, and the sounder and flashing light 202d in the equipment issue an alarm to warn the personnel on site.

[0040] In summary: During installation, the monitor 102a is fixed in place by the mounting plate 101a, and then connected to the external pipeline by the connector 201b in the connecting assembly 201. The fixing plate 201c and the threaded sleeve 201d are used to reinforce the connection between the connector 201b and the external pipeline. After installation, the pressure detector 202b detects the air pressure inside the steam supply channel 201a. When the internal pressure is constant, the value inside the pressure detector 202b remains unchanged, indicating that the device is operating normally. When a pipeline leak occurs, the pressure detector 202b changes, indicating that there is a problem with the device.

[0041] Example 3, referring to Figures 3-4 The third embodiment of the present invention includes: further, the sealing assembly 301 includes a groove 301a disposed inside the monitor 102a, a movable plate 301b disposed inside the groove 301a, wherein the movable plate 301b is used to move inside the groove 301a, a sealing plate 301c disposed on the movable plate 301b, and a sealing groove 301d disposed on the inner wall of the steam supply channel 201a, wherein the sealing plate 301c and the sealing groove 301d are adapted to each other.

[0042] Preferably, when the movable plate 301b moves upward, the sealing plate 301c moves inside the sealing groove 301d. When the movable plate 301b rises to the top, the sealing plate 301c seals the internal channel, thus blocking the internal channel.

[0043] Furthermore, the sealing assembly 303 includes a groove 302a disposed inside the groove 301a, a sealing block 302b disposed inside the groove 302a, which restricts the movement trajectory of the sealing block 302b by the groove 302a, a sealing spring 302c disposed on the right side of the sealing block 302b, which pushes the sealing block 302b to the left so that the sealing block 302b is always at the leftmost position when no force is applied, and a sealing plate 302d disposed inside the groove 301a, which is used to further seal the steam branch hole 303a.

[0044] Preferably, the lower end of the sealing block 302b is set as an inclined surface, so that when the sealing block 302b is squeezed, it can be pushed to the right.

[0045] Furthermore, the diversion assembly 302 includes a steam branch hole 303a disposed inside the steam supply pipe and on the sealing plate 302d, and a branch pipe 303b disposed on the movable plate 301b.

[0046] Among them, the branch steam hole 303a is used to facilitate the entry of the branch pipe 303b and to facilitate the connection between the steam supply channel 201a and the branch pipe 303b.

[0047] Preferably, when the moving plate 301b moves upward, the top of the branch pipe will push the sealing block 302b upward, so that the sealing block 302b exposes the branch pipe hole 303a to the right. Then the branch pipe 303b continues to move upward into the interior and connects with the steam supply channel 201a to realize the diversion of the internal pipe.

[0048] Furthermore, the limiting component 401 includes a limiting hole 401a disposed on the groove 301a, a limiting groove 401b disposed inside the limiting hole 401a, a rotating rod 401c disposed on the lower side of the moving plate 301b, a control rod 401d disposed on the rotating rod 401c, and a limiting block 401e disposed between the rotating rod 401c and the control rod 401d.

[0049] Among them, the limiting groove 401b is spiral-shaped, and the limiting block 401e must rotate when the rotating rod 401c moves upward. The control rod 401d is used to facilitate the up and down movement of the internal moving plate 301b.

[0050] Preferably, the limiting component 401 restricts the vertical movement of the moving plate 301b by the cooperation of the limiting groove 401b inside the limiting hole 401a and the limiting block 401e. When the moving plate 301b moves vertically, the limiting block 401e on the rotating rod 401c slides inside the limiting groove 401b. At the same time, the limiting block 401e itself must rotate. When the limiting block 401e cannot rotate, the moving plate 301b cannot move, thus restricting the moving plate 301b.

[0051] Furthermore, the limiting assembly 402 includes a limiting hole 402a disposed in the middle of the limiting block 401e, a cavity 402b disposed on the control rod 401d, a limiting rod 402c disposed inside the cavity 402b, a limiting block 402d disposed on the limiting rod 402c, and a limiting spring 402e disposed on the outer wall of the limiting rod 402c.

[0052] The limiting spring 402e is used to push the limiting rod 402c downward, so that the limiting rod 402c is always on the lower side. The limiting hole 402a is used to cooperate with the limiting block 402d to lock the limiting block 401e. The limiting rod 402c can only slide and cannot rotate inside the cavity 402b.

[0053] Preferably, the limiting spring pushes the limiting rod 402c so that the limiting rod 402c is on the lower side, so that the limiting block 402d on the limiting rod 402c is inside the limiting hole 402a. There is a connecting rod between the limiting hole 402a and the limiting rod 402c. When the limiting block 402d is inside the limiting hole 402a, the limiting block 401e cannot rotate, thereby locking the moving plate 301b.

[0054] In summary: By pushing the limiting rod 402c upwards, the limiting block 402d on the limiting rod 402c disengages from the limiting hole 402a. Then, by pushing the control rod 401d upwards, the moving plate 301b moves upwards, thereby causing the sealing plate 301c to move upwards. When the moving plate 301b rises to its top, the sealing plate 301c seals the internal channel, achieving blockage. Simultaneously, as the moving plate 301b moves upwards, the top of the branch pipe 303b pushes the sealing block 302b upwards. This causes the sealing block 302b to protrude to the right through the steam branch hole 303a. Then, the branch pipe 303b continues upward into the interior and connects with the steam supply channel 201a, thus diverting the internal pipeline. This connects the steam supply channel 201a and the branch pipe 303b, allowing the device to continue operating normally. If the internal air pressure returns to normal after the branch pipe 303b is connected, it indicates that there is a leak in the pipeline. If the air pressure is still abnormal after connection, it indicates that there is a problem with the device. This allows for safety monitoring while also eliminating false alarms caused by pipeline leaks.

[0055] The remaining structure is the same as that in Example 2.

[0056] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing 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 elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the 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. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention) may be omitted.

[0057] 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 it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A safety monitoring device for external steam supply under deep peak shaving conditions of thermal power units, characterized in that: include, The support component (100) includes a mounting assembly (101) and a base assembly (102) disposed on the mounting assembly (101). The monitoring component (200) includes a connection component (201) disposed on the base component (102) and a monitoring component (202) disposed on the base component (102). The drainage component (300) includes a plugging component (301) disposed on the connecting component (201), a drainage component (302) disposed inside the base component (102), and a sealing component (303) disposed on the drainage component (302); and, The control component (400) includes a limiting component (401) disposed on the blocking component (301) and a limiting component (402) disposed on the limiting component (401). The mounting assembly (101) includes a mounting plate (101a), a fixing hole (101b) provided on the mounting plate (101a), and a mounting groove (101c). The basic component (102) includes a monitor (102a) disposed inside the mounting slot (101c), a screen (102b) disposed on the monitor (102a), and a button (102c). The connecting assembly (201) includes a steam supply channel (201a) disposed inside the monitor (102a), connectors (201b) disposed on both sides of the steam supply channel (201a), and a fixing piece (201c) and a threaded sleeve (201d) disposed on the connector (201b). The monitoring component (202) includes a mounting slot (202a) disposed inside the monitor (102a), a pressure detector (202b) disposed inside the mounting slot (202a), and a buzzer (202c) and a flashing light (202d) disposed inside the monitor (102a). The sealing assembly (301) includes a groove (301a) disposed inside the monitor (102a), a movable plate (301b) disposed inside the groove (301a), a sealing plate (301c) disposed on the movable plate (301b), and a sealing groove (301d) disposed on the inner wall of the steam supply channel (201a). While the blocking component (301) moves, it will also drive the diversion component (302) to move, so that the diversion component (302) can divert the steam supply channel inside the monitor (102a). If the detection device returns to normal after diversion, it indicates that there is a leak in the steam supply pipeline. If it does not return to normal, it indicates that there is a problem with the equipment. The sealing assembly (303) includes a sealing plate (302d) disposed inside the groove (301a). The diversion assembly (302) includes a steam branch hole (303a) disposed inside the steam supply pipe and on the sealing plate (302d), and a branch pipe (303b) disposed on the movable plate (301b).

2. The safety monitoring device for external steam supply under deep peak shaving conditions of thermal power units according to claim 1, characterized in that: The sealing assembly (303) includes a groove (302a) disposed inside the groove (301a), a sealing block (302b) disposed inside the groove (302a), and a sealing spring (302c) disposed on the right side of the sealing block (302b).

3. The safety monitoring device for external steam supply under deep peak shaving conditions of thermal power units according to claim 2, characterized in that: The limiting component (401) includes a limiting hole (401a) disposed on the groove (301a), a limiting groove (401b) disposed inside the limiting hole (401a), a rotating rod (401c) disposed on the lower side of the moving plate (301b), a control rod (401d) disposed on the rotating rod (401c), and a limiting block (401e) disposed between the rotating rod (401c) and the control rod (401d).

4. The safety monitoring device for external steam supply under deep peak shaving conditions of thermal power units according to claim 3, characterized in that: The limiting assembly (402) includes a limiting hole (402a) disposed in the middle of the limiting block (401e), a cavity (402b) disposed on the control rod (401d), a limiting rod (402c) disposed inside the cavity (402b), a limiting block (402d) disposed on the limiting rod (402c), and a limiting spring (402e) disposed on the outer wall of the limiting rod (402c).

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