High-pressure coal slurry pump valve

Abstract

The high-pressure coal slurry pump valve comprises a valve shell, a top shell, a manual switch mechanism, an electric switch mechanism and a filtering mechanism, the top shell is arranged at the top end of the valve shell, a pump valve mechanism is arranged in the valve shell, and the filtering mechanism is arranged at the position, located at the bottom end of the pump valve mechanism, in the valve shell; a manual switch mechanism and an electric switch mechanism are arranged in the top shell, an adjusting driving mechanism is arranged between the manual switch mechanism and the electric switch mechanism, and a lifting mechanism is arranged between one side of the adjusting driving mechanism and the top end of the pump valve mechanism. Therefore, the conical valve ring is arranged in the valve element, the polyurethane material is adopted, the elasticity of the conical valve ring is the same as that of rubber in function, the buffering effect on flowing of coal slurry is achieved, the conical design of the valve ring enables the conical design of the valve ring to make contact with the valve seat more tightly, the coal slurry is effectively sealed, and the service life of the valve ring is prolonged. The tapered structure also helps to reduce wear and resistance to fluid flow.

Description

Technical Field

[0001] The present application relates to the technical field of pumps and valves, and in particular to a high-pressure coal slurry pump and valve. Background Art

[0002] High-pressure coal slurry pump valve is a device used to adjust, control or cut off the flow of slurry in the slurry pump system. It can operate stably under high-pressure environment to ensure the normal operation of the slurry pump and the smooth transportation of slurry.

[0003] Existing pumps and valves are prone to the following defects

[0004] 1. Easy to wear: Coal slurry contains a large number of hard solid particles, which will cause serious scratches and wear on the pump valve during the flow process, resulting in seal failure and leakage, thereby reducing the service life of the pump valve.

[0005] 2. Due to the complexity of coal slurry and the harsh working environment of pumps and valves, the sealing performance of pumps and valves is easily affected, resulting in leakage problems.

[0006] 3. There is only one way to open the pump valve, which results in the pump valve not being able to open after the electric drive fails, and the pump body idling and causing damage. Therefore, it is necessary to improve a construction exploration device to solve the above problems. Summary of the invention

[0007] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0008] To this end, the first purpose of the present application is to provide a high-pressure coal slurry pump valve, which has two ways of opening the pump valve, and can be opened and closed by manual adjustment after the pump valve electric switch fails.

[0009] The second purpose of the present application is to propose a high-pressure coal slurry pump valve, which is provided with a conical valve ring inside the valve core, and the polyurethane material is used, which can show the same elasticity as rubber in function and play a buffering role in the flow of coal slurry. The conical design of the valve ring makes it more closely in contact with the valve seat, effectively sealing the coal slurry, and the conical structure also helps to reduce wear and resistance to fluid flow. The flow rate of the coal slurry is controlled by the contact area between the conical valve disc on the valve core and the valve seat. This conical tilted design makes the flow regulation more precise. The valve core contacts the valve seat through its conical structure, and the size of the fluid channel is changed according to the displacement of the valve core pushed by the pressure to adjust the flow rate. When the valve core is closed, it is in close contact with the valve seat to provide sealing to prevent leakage of coal slurry. When it is opened, the conical design of the valve core allows the fluid to pass smoothly, and the conical design of the valve seat makes it in close contact with the valve disc to form an effective sealing surface to reduce leakage of coal slurry. The conical design also helps to smoothly adjust the flow rate. The valve seat is made of high-strength alloy steel 20CrMnT i to meet the use requirements under high-pressure environments.

[0010] The third purpose of the present application is to propose a high-pressure coal slurry pump valve. By arranging a mounting frame and a filter screen at the bottom end of the valve housing, a large amount of hard solid particles contained in the coal slurry can be effectively filtered. By sealing and making the valve seat with high-strength alloy steel, the particles can be reduced from causing serious scratches and wear on the pump valve during the flow process, resulting in seal failure and leakage, thereby reducing the service life of the pump valve.

[0011] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a high-pressure coal slurry pump valve, which includes a valve shell, a top shell, a manual switch mechanism, an electric switch mechanism and a filter mechanism. The top shell is arranged at the top of the valve shell, and a pump valve mechanism is arranged inside the valve shell. The filter mechanism is arranged at the bottom of the pump valve mechanism inside the valve shell, and a manual switch mechanism and an electric switch mechanism are arranged inside the top shell. An adjustment drive mechanism is arranged between the manual switch mechanism and the electric switch mechanism, and a lifting mechanism is arranged between one side of the adjustment drive mechanism and the top of the pump valve mechanism.

[0012] Wherein, the manual switch mechanism comprises a rotating rod and a first driving gear, one side of the top shell is internally rotatably connected with the rotating rod, and one end of the rotating rod is fixedly connected with the first driving gear;

[0013] Wherein, the electric switch mechanism comprises a progressive motor, a driving shaft and a second driving gear, the outer wall of the top shell is fixedly connected to the progressive motor, the outer wall of the progressive motor is fixedly connected to the driving shaft, and one end of the driving shaft is fixedly connected to the second driving gear;

[0014] The pump valve mechanism includes a valve seat, a valve disc, a conical valve ring, a valve core and a driving rod. The valve seat is arranged inside the valve housing, a corresponding valve disc is arranged at the top of the valve seat, a valve core is arranged at the top of the valve disc, a conical valve ring is arranged between the valve disc and the valve core, and a driving rod runs through the middle of the valve disc and the valve core.

[0015] Among them, the filtering mechanism includes a filter screen, a mounting frame and a limit screw, six limit screws are fixedly connected to the bottom end of the valve seat, the outer wall of the limit screw is sleeved with a mounting frame, a filter screen is arranged inside the mounting frame, and the mounting frame and the limit screw are fixed by nuts.

[0016] The high-pressure coal slurry pump valve in the embodiment of the present application is provided with two ways of opening the pump valve, and the pump valve can be opened and closed by manual adjustment after the electric switch of the pump valve fails. By providing a mounting frame and a filter screen at the bottom end of the valve housing, a large amount of hard solid particles contained in the coal slurry can be effectively filtered. By sealing and making the valve seat with high-strength alloy steel, the particles can be reduced from causing serious scratches and wear on the pump valve during the flow process, resulting in seal failure and leakage, thereby reducing the service life of the pump valve.

[0017] In addition, the high-pressure coal slurry pump valve proposed in the present application may also have the following additional technical features:

[0018] A high-pressure coal slurry pump valve comprises a valve housing, a top housing, a manual switch mechanism, an electric switch mechanism and a filter mechanism, wherein the top housing is provided at the top end of the valve housing, a pump valve mechanism is provided inside the valve housing, a filter mechanism is provided inside the valve housing at the bottom end of the pump valve mechanism, a manual switch mechanism and an electric switch mechanism are provided inside the top housing, an adjustment drive mechanism is provided between the manual switch mechanism and the electric switch mechanism, and a lifting mechanism is provided between one side of the adjustment drive mechanism and the top end of the pump valve mechanism;

[0019] Wherein, the manual switch mechanism comprises a rotating rod and a first driving gear, one side of the top shell is internally rotatably connected with the rotating rod, and one end of the rotating rod is fixedly connected with the first driving gear;

[0020] Wherein, the electric switch mechanism comprises a progressive motor, a driving shaft and a second driving gear, the outer wall of the top shell is fixedly connected to the progressive motor, the outer wall of the progressive motor is fixedly connected to the driving shaft, and one end of the driving shaft is fixedly connected to the second driving gear;

[0021] The pump valve mechanism includes a valve seat, a valve disc, a conical valve ring, a valve core and a driving rod. The valve seat is arranged inside the valve housing, a corresponding valve disc is arranged at the top of the valve seat, a valve core is arranged at the top of the valve disc, a conical valve ring is arranged between the valve disc and the valve core, and a driving rod runs through the middle of the valve disc and the valve core.

[0022] Among them, the filtering mechanism includes a filter screen, a mounting frame and a limit screw, six limit screws are fixedly connected to the bottom end of the valve seat, the outer wall of the limit screw is sleeved with a mounting frame, a filter screen is arranged inside the mounting frame, and the mounting frame and the limit screw are fixed by nuts.

[0023] In an embodiment of the present application, the manual switch mechanism also includes a limit plate, a limit hole and a limit bolt. The rotating rod is located at one end on the outer side of the top shell and is fixedly connected to the limit plate. A limit hole is provided on the outer wall of the limit plate. The limit bolt is threadedly connected between the inside of the limit hole and the outer wall of the top shell.

[0024] In an embodiment of the present application, the adjustment drive mechanism includes a support plate, a slider, an adjustment drive shaft and a driven gear. The support plate is fixedly connected to the inside of the top shell, the slider is slidably connected to the inside of the support plate, the adjustment drive shaft is rotatably connected to the inside of the slider, and one end of the adjustment drive shaft is fixedly connected to the driven gear.

[0025] In an embodiment of the present application, an adjustment groove is formed on the outer wall of the top shell at the top end of the rotating rod, and an adjustment driving shaft is slidably connected inside the adjustment groove.

[0026] In an embodiment of the present application, the adjustment drive mechanism further includes a socket and an insertion rod, and sockets are provided at corresponding locations of the outer wall of the support plate, the outer wall of the top shell and the outer wall of the slider, and the insertion rod is slidably connected inside the socket.

[0027] In an embodiment of the present application, the lifting mechanism includes a toothed plate, a connecting shaft, a first gear and a second gear. The top shell is slidably connected to the toothed plate inside, the outer wall of the toothed plate is meshingly connected to the first gear, the middle part of the first gear is fixedly connected to the connecting shaft, and one end of the connecting shaft is fixedly connected to the second gear.

[0028] In an embodiment of the present application, a tooth plate is fixedly connected to the top end of the driving rod.

[0029] In an embodiment of the present application, the outer wall of the first driving gear is meshedly connected to the outer wall of the driven gear, and the outer wall of the driven gear is meshedly connected to the outer wall of the second gear.

[0030] In an embodiment of the present application, the first driving gear, the driven gear and the second driving gear are located in the same plane.

[0031] In an embodiment of the present application, an output pipe is connected through the outer wall of the valve housing.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0034] Figure 1 This is a schematic diagram of the overall structure of a high-pressure coal slurry pump valve according to an embodiment of the present application;

[0035] Figure 2 It is a schematic diagram of the overall structure of a high-pressure coal slurry pump valve from another angle according to another embodiment of the present application;

[0036] Figure 3 This is a schematic diagram of the overall top view of a high-pressure coal slurry pump valve according to another embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a high-pressure coal slurry pump valve mechanism according to another embodiment of the present application;

[0038] Figure 5 This is a schematic diagram of a valve seat structure of a high-pressure coal slurry pump valve according to another embodiment of the present application;

[0039] Figure 6 This is a schematic diagram of the combined structure of a valve disc, a conical valve ring, a valve core and a driving rod of a high-pressure coal slurry pump valve according to another embodiment of the present application;

[0040] Figure 7 This is a schematic diagram of the overall internal mechanical structure of a high-pressure coal slurry pump valve according to another embodiment of the present application;

[0041] Figure 8 This is a schematic diagram of the overall cross-sectional structure of a high-pressure coal slurry pump valve according to another embodiment of the present application;

[0042] Fig. 9 This is a schematic diagram of the internal mechanical structure of a high-pressure coal slurry pump valve according to another embodiment of the present application from a top view;

[0043] Fig.10 This is a schematic diagram of the structure of the filter mechanism for adjusting a high-pressure coal slurry pump according to another embodiment of the present application.

[0044] As shown in the figure: 1. valve housing; 2. top housing; 3. manual switch mechanism; 31. rotating rod; 32. limiting plate; 33. limiting hole; 34. limiting bolt; 35. first drive gear; 4. adjusting slot; 5. electric switch mechanism; 51. progressive motor; 52. drive shaft; 53. second drive gear; 6. adjusting drive mechanism; 61. support plate; 62. jack; 63. slider; 64. adjusting drive shaft; 65. driven gear; 66. plug rod; 7. lifting mechanism; 71. tooth plate; 72. connecting shaft; 73. first gear; 74. second gear; 8. filtering mechanism; 81. filter screen; 82. mounting bracket; 83. limiting screw; 9. pump valve mechanism; 91. valve seat; 92. valve disc; 93. conical valve ring; 94. valve core; 95. driving rod; 10. output pipe. DETAILED DESCRIPTION

[0045] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0046] The high-pressure coal slurry pump valve of the embodiment of the present application is described below with reference to the accompanying drawings.

[0047] like Figure 1 As shown, the high-pressure coal slurry pump valve of the embodiment of the present application includes a valve shell 1, a top shell 2, a manual switch mechanism 3, an electric switch mechanism 5 and a filter mechanism 8. The top shell 2 is arranged at the top of the valve shell 1, and a pump-valve mechanism 9 is arranged inside the valve shell 1. The filter mechanism 8 is arranged at the bottom end of the pump-valve mechanism 9 inside the valve shell 1, and the manual switch mechanism 3 and the electric switch mechanism 5 are arranged inside the top shell 2. An adjusting drive mechanism 6 is arranged between the manual switch mechanism 3 and the electric switch mechanism 5, and a lifting mechanism 7 is arranged between one side of the adjusting drive mechanism 6 and the top of the pump-valve mechanism 9.

[0048] Specifically, the manual switch mechanism 3 includes a rotating rod 31 and a first driving gear 35. The rotating rod 31 is rotatably connected inside one side of the top shell 2, and one end of the rotating rod 31 is fixedly connected to the first driving gear 35. By sliding the slider 63 downward, the driven gear 65 is engaged with the first driving gear 35. By rotating the limiting bolt 34 out of the limiting hole 33, and then rotating the turntable to drive the first driving gear 35 to rotate, the first driving gear 35 drives the driven gear 65 to rotate, and the pump valve can be manually opened;

[0049] Specifically, the electric switch mechanism 5 includes a progressive motor 51, a drive shaft 52 and a second drive gear 53. The outer wall of the top shell 2 is fixedly connected to the progressive motor 51, the outer wall of the progressive motor 51 is fixedly connected to the drive shaft 52, and one end of the drive shaft 52 is fixedly connected to the second drive gear 53. Starting the progressive motor 51 drives the drive shaft 52 to rotate, the drive shaft 52 drives the second drive gear 53 to rotate, the second drive gear 53 drives the driven gear 65 to rotate, the driven gear 65 drives the second gear 74 to rotate, and drives the connecting shaft 72 and the first gear 73 to rotate, so as to facilitate the tooth plate 71 to slide along the inside of the top shell 2, move the drive shaft 52, the valve core 94 and the valve disc 92 upward, so that the valve disc 92 is away from the valve seat 91, so as to facilitate the opening of the pump valve;

[0050] Specifically, the pump valve mechanism 9 includes a valve seat 91, a valve disc 92, a conical valve ring 93, a valve core 94 and a driving rod 95. The valve seat 91 is arranged inside the valve housing 1, and a corresponding valve disc 92 is arranged at the top of the valve seat 91. A valve core 94 is arranged at the top of the valve disc 92. A conical valve ring 93 is arranged between the valve disc 92 and the valve core 94. A driving rod 95 runs through the middle of the valve disc 92 and the valve core 94. The flow rate of the coal slurry is controlled by the contact area between the conical valve disc 92 on the valve core 94 and the valve seat 91. This conical tilting design makes the flow rate regulation more precise. The valve core 94 contacts the valve seat 91 through its conical structure, and changes the size of the fluid channel according to the displacement of the valve core 94 pushed by the pressure to adjust the flow rate. The valve core 94 is in close contact with the valve seat 91 when closed, providing sealing to prevent leakage of the coal slurry.

[0051] Specifically, the filtering mechanism 8 includes a filter screen 81, a mounting frame and a limit screw 83. Six limit screws 83 are fixedly connected to the bottom end of the valve seat 91. The outer wall of the limit screw 83 is sleeved with a mounting frame. The inside of the mounting frame is provided with a filter screen 81. The mounting frame and the limit screw 83 are fixed by nuts. By providing the mounting frame and the filter screen 81 at the bottom end of the valve housing 1, a large amount of hard solid particles contained in the coal slurry can be effectively filtered.

[0052] Furthermore, the above-mentioned high-pressure coal slurry pump valve also includes:

[0053] In this embodiment, the manual switch mechanism 3 also includes a limit plate 32, a limit hole 33 and a limit bolt 34. The rotating rod 31 is located at one end of the outer side of the top shell 2 and is fixedly connected to the limit plate 32. The outer wall of the limit plate 32 is provided with a limit hole 33. The limit bolt 34 is threadedly connected between the inside of the limit hole 33 and the outer wall of the top shell 2, and the limit bolt 34 is rotated out from the inside of the limit hole 33.

[0054] In this embodiment, the adjusting drive mechanism 6 includes a support plate 61, a slider 63, an adjusting drive shaft 64 and a driven gear 65. The interior of the top shell 2 is fixedly connected to the support plate 61, the interior of the support plate 61 is slidably connected to the slider 63, the interior of the slider 63 is rotatably connected to the adjusting drive shaft 64, one end of the adjusting drive shaft 64 is fixedly connected to the driven gear 65, the second driving gear 53 drives the driven gear 65 to rotate, the driven gear 65 drives the second gear 74 to rotate, and drives the connecting shaft 72 and the first gear 73 to rotate, so as to push the tooth plate 71 to slide along the interior of the top shell 2, and move the driving shaft 52, the valve core 94 and the valve disc 92 upward.

[0055] In this embodiment, an adjustment slot 4 is formed on the outer wall of the top shell 2 at the top end of the rotating rod 31 , and an adjustment driving shaft 64 is slidably connected inside the adjustment slot 4 .

[0056] In this embodiment, the adjustment drive mechanism 6 also includes a socket 62 and an insertion rod 66. The outer wall of the support plate 61, the outer wall of the top shell 2 and the outer wall of the slider 63 are all provided with sockets 62 at corresponding positions. The inner part of the socket 62 is slidably connected with the insertion rod 66. By sliding the insertion rod 66 out of the socket 62, the drive shaft 52 is pushed to drive the slider 63 to slide inside the support plate 61.

[0057] In this embodiment, the lifting mechanism 7 includes a tooth plate 71, a connecting shaft 72, a first gear 73 and a second gear 74. The top shell 2 is internally slidably connected with the tooth plate 71, the outer wall of the tooth plate 71 is meshingly connected with the first gear 73, the middle part of the first gear 73 is fixedly connected with the connecting shaft 72, and one end of the connecting shaft 72 is fixedly connected with the second gear 74, so that the driven gear 65 fits the second driving gear 53. After adjustment, the insertion rod 66 is reinserted into the inside of the socket 62, and the step motor 51 is started to drive the driving shaft 52 to rotate, the driving shaft 52 drives the second driving gear 53 to rotate, and the second driving gear 53 drives the driven gear 65 to rotate.

[0058] In this embodiment, the top end of the driving rod 95 is fixedly connected with a tooth plate 71, and the driven gear 65 drives the second gear 74 to rotate, and drives the connecting shaft 72 and the first gear 73 to rotate, so as to push the tooth plate 71 to slide along the inside of the top shell 2, and move the driving shaft 52, the valve core 94 and the valve disc 92 upward.

[0059] In this embodiment, the outer wall of the first driving gear 35 is meshedly connected to the outer wall of the driven gear 65, and the outer wall of the driven gear 65 is meshedly connected to the outer wall of the second gear 74. By rotating the limiting bolt 34 out of the limiting hole 33 and then rotating the turntable to drive the first driving gear 35 to rotate, the first driving gear 35 drives the driven gear 65 to rotate.

[0060] In this embodiment, the first driving gear 35 , the driven gear 65 and the second driving gear 53 are located in the same plane.

[0061] In this embodiment, an output pipe 10 is connected through the outer wall of the valve housing 1 .

[0062] It should be noted that the control method of the present application can be automatically controlled by a controller, and the control method of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field, and the present application is mainly used to protect mechanical structures, so the present application will no longer explain the control method and circuit connection in detail.

[0063] In summary, the high-pressure coal slurry pump valve of the embodiment of the present application is operated by sliding the plug rod 66 out of the socket 62, pushing the drive shaft 52 to drive the slider 63 to slide inside the support plate 61, so that the driven gear 65 fits the second drive gear 53, and after adjustment, the plug rod 66 is reinserted into the socket 62, and the progressive motor 51 is started to drive the drive shaft 52 to rotate, the drive shaft 52 drives the second drive gear 53 to rotate, the second drive gear 53 drives the driven gear 65 to rotate, the driven gear 65 drives the second gear 74 to rotate, and drives the connecting shaft The gear plate 72 and the first gear 73 rotate to push the toothed plate 71 to slide along the inside of the top shell 2, and the drive shaft 52, the valve core 94 and the valve disc 92 are moved upward, so that the valve disc 92 is away from the valve seat 91, so as to open the pump valve, and the slider 63 is slid downward to make the driven gear 65 engage with the first driving gear 35, and the limiting bolt 34 is turned out from the limiting hole 33, and then the turntable is rotated to drive the first driving gear 35 to rotate, and the first driving gear 35 drives the driven gear 65 to rotate, so that the pump valve can be manually opened, and the pump valve can be opened manually by There are two ways to open the pump valve. The pump valve can be opened and closed manually after the electric switch of the pump valve fails. A conical valve ring 93 is arranged inside the valve core 94, and the polyurethane material can show the same elasticity as rubber in its function, which plays a buffering role in the flow of coal slurry. The conical design of the valve ring makes it more closely contacted with the valve seat 91, effectively sealing the coal slurry. The conical structure also helps to reduce wear and resistance to fluid flow. The flow rate of the coal slurry is controlled by the contact area between the conical valve disc 92 on the valve core 94 and the valve seat 91. This conical tilt design makes the flow regulation more precise. The valve core 94 contacts the valve seat 91 through its conical structure, and the displacement of the valve core 94 is changed according to the pressure to adjust the flow rate by changing the size of the fluid channel. When closed, the valve core 94 is in close contact with the valve seat 91 to provide sealing to prevent leakage of coal slurry. When opened, the conical design of the valve core 94 allows the fluid to pass smoothly, and the conical design of the valve seat 91 allows it to be in close contact with the valve disc 92 to form an effective sealing surface to reduce leakage of coal slurry. The conical design also helps to smoothly regulate the flow rate. The valve seat 91 is made of high-strength alloy steel 20CrMnT i to meet the use requirements under high-pressure environments. The valve seat 91 is coated with a wear-resistant layer to further improve the wear resistance. By arranging a mounting frame and a filter screen 81 at the bottom end of the valve housing 1, a large number of hard solid particles in the coal slurry can be effectively filtered. By sealing and making the valve seat 91 of high-strength alloy steel, it is possible to reduce the particles from causing serious scratches and wear on the pump valve during the flow process, resulting in seal failure and leakage, thereby reducing the service life of the pump valve. By arranging a through output pipe 10 on the outside of the valve housing 1, the high-pressure coal slurry can be discharged.

[0064] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0066] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A high-pressure coal slurry pump valve, comprising a valve housing (1), a top housing (2), a manual switch mechanism (3), an electric switch mechanism (5) and a filter mechanism (8), characterized in that: A top shell (2) is arranged at the top of the valve shell (1), a pump valve mechanism (9) is arranged inside the valve shell (1), a filter mechanism (8) is arranged inside the valve shell (1) at the bottom end of the pump valve mechanism (9), a manual switch mechanism (3) and an electric switch mechanism (5) are arranged inside the top shell (2), an adjustment drive mechanism (6) is arranged between the manual switch mechanism (3) and the electric switch mechanism (5), and a lifting mechanism (7) is arranged between one side of the adjustment drive mechanism (6) and the top of the pump valve mechanism (9); The manual switch mechanism (3) comprises a rotating rod (31) and a first driving gear (35); one side of the top shell (2) is internally rotatably connected to the rotating rod (31); one end of the rotating rod (31) is fixedly connected to the first driving gear (35); The electric switch mechanism (5) comprises a progressive motor (51), a drive shaft (52) and a second drive gear (53); the outer wall of the top shell (2) is fixedly connected to the progressive motor (51); the outer wall of the progressive motor (51) is fixedly connected to the drive shaft (52); and one end of the drive shaft (52) is fixedly connected to the second drive gear (53); The pump valve mechanism (9) comprises a valve seat (91), a valve disc (92), a conical valve ring (93), a valve core (94) and a driving rod (95); the valve seat (91) is arranged inside the valve housing (1); a corresponding valve disc (92) is arranged at the top of the valve seat (91); a valve core (94) is arranged at the top of the valve disc (92); a conical valve ring (93) is arranged between the valve disc (92) and the valve core (94); and a driving rod (95) runs through the middle of the valve disc (92) and the valve core (94); The filter mechanism (8) comprises a filter screen (81), a mounting frame and a limit screw (83); the bottom end of the valve seat (91) is fixedly connected to six limit screws (83); the outer wall of the limit screw (83) is sleeved with a mounting frame; the interior of the mounting frame is provided with a filter screen (81); and the mounting frame and the limit screw (83) are fixed by nuts.

2. The high pressure coal slurry pump valve according to claim 1, characterized in that: The manual switch mechanism (3) further comprises a limit plate (32), a limit hole (33) and a limit bolt (34); one end of the rotating rod (31) is located outside the top shell (2) and is fixedly connected to the limit plate (32); the limit hole (33) is provided on the outer wall of the limit plate (32); and the limit bolt (34) is threadedly connected between the inside of the limit hole (33) and the outer wall of the top shell (2).

3. The high pressure coal slurry pump valve according to claim 1, characterized in that: The adjusting drive mechanism (6) comprises a support plate (61), a slider (63), an adjusting drive shaft (64) and a driven gear (65); the interior of the top shell (2) is fixedly connected to the support plate (61); the interior of the support plate (61) is slidably connected to the slider (63); the interior of the slider (63) is rotatably connected to the adjusting drive shaft (64); and one end of the adjusting drive shaft (64) is fixedly connected to the driven gear (65).

4. The high pressure coal slurry pump valve according to claim 1, characterized in that: An adjustment groove (4) is formed on the outer wall of the top shell (2) at the top end of the rotating rod (31), and an adjustment drive shaft (64) is slidably connected inside the adjustment groove (4).

5. The high pressure coal slurry pump valve according to claim 3, characterized in that: The adjustment drive mechanism (6) further comprises a socket (62) and an insertion rod (66); the sockets (62) are provided at corresponding locations of the outer wall of the support plate (61), the outer wall of the top shell (2) and the outer wall of the sliding block (63); and the insertion rod (66) is slidably connected inside the socket (62).

6. The high pressure coal slurry pump valve according to claim 1, characterized in that: The lifting mechanism (7) comprises a toothed plate (71), a connecting shaft (72), a first gear (73) and a second gear (74); the toothed plate (71) is slidably connected to the interior of the top shell (2); the first gear (73) is meshingly connected to the outer wall of the toothed plate (71); the middle of the first gear (73) is fixedly connected to the connecting shaft (72); and one end of the connecting shaft (72) is fixedly connected to the second gear (74).

7. The high pressure coal slurry pump valve according to claim 1, characterized in that: The top end of the driving rod (95) is fixedly connected to a toothed plate (71).

8. The high pressure coal slurry pump valve according to claim 1, characterized in that: The outer wall of the first driving gear (35) is meshedly connected to the outer wall of the driven gear (65), and the outer wall of the driven gear (65) is meshedly connected to the outer wall of the second gear (74).

9. The high pressure coal slurry pump valve according to claim 1, characterized in that: The first driving gear (35), the driven gear (65) and the second driving gear (53) are located on the same plane.

10. The high pressure coal slurry pump valve according to claim 1, characterized in that: An output pipe (10) is connected through the outer wall of the valve housing (1).

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