Air pressure and cement ash dual-adjustment ash conveying device

Abstract

The air pressure and cement ash double-adjustment ash conveying device comprises a tank body, the bottom of the tank body is installed on a base through a supporting structure, a weighing sensor is further arranged between the supporting structure and the base and connected with a control system, and an ash inlet pipeline and an ash outlet pipeline are arranged on the side wall of the tank body. A proportional ash adjusting valve is mounted on the ash inlet pipeline close to the side wall of the tank body, the proportional ash adjusting valve is connected with a control system through an electric actuator, and a pressure adjusting device is arranged at the top of the tank body; the pressure in the tank body is accurately controlled by adopting the pressure regulating device, so that the pressure fluctuation in the tank body in the ash conveying process is small, the ash inlet amount of the tank body is regulated by adopting the proportional ash regulating valve, the weight of cement ash in the tank body is in a stable state, and uniform conveying of the cement ash is ensured; and favorable conditions are created for the subsequent accurate metering of the cement ash by the mixer.

Description

Technical Field

[0001] The invention belongs to the technical field of cementing ash supply equipment and relates to an ash conveying device with dual regulation of air pressure and cement ash. Background Art

[0002] During the cementing process in oil fields, a certain pressure of gas is introduced into the lower ash tank to fluidize the cement ash in the tank, so that the cement ash can be efficiently transported in the pipeline like a fluid. However, as the distance of the pipeline increases or the number of bends increases, the loss along the ash transportation increases, the kinetic energy of the fluidized cement ash gradually decays, and the ash transportation pressure fluctuates frequently. With the continuous decay of kinetic energy, the cement ash gradually settles in the pipeline, the ash transportation efficiency decreases, and even the pipeline is blocked. At the same time, due to the fluctuation of the ash transportation pressure, it becomes very difficult for the downstream mixer to accurately measure the cement ash, affecting the precise mixing of the cement slurry density. In order to solve the decay of the kinetic energy of ash transportation and eliminate pressure fluctuations, it is usually necessary to add a buffer tank at the rear end of the ash transportation pipe near the mixer, and pass a certain air pressure into the buffer tank to make the cement ash secondary fluidized and restore the kinetic energy, while also eliminating some of the pressure fluctuations.

[0003] After taking the above measures, the ash conveying effect has been improved to a certain extent, but the pressure in the buffer tank is still in an uncontrollable state, and the pressure in the tank fluctuates greatly. Although a pressure-stabilizing valve is provided, the existing pressure-stabilizing valve only plays a role in limiting the high pressure, and various fluctuations in pressure below the threshold cannot be eliminated well; in addition, the amount of ash entering the buffer tank is also uncontrolled, resulting in a large change in the uniformity of cement ash in the process from the buffer tank to the mixer, which affects the mixing density effect of the cement slurry. Summary of the invention

[0004] The purpose of the present invention is to provide an air pressure and cement ash dual-adjustment ash conveying device, which has the characteristics of small pressure fluctuation in the tank during ash conveying.

[0005] The technical solution adopted by the present invention is an ash conveying device with dual adjustment of air pressure and cement ash, which includes a tank body. The bottom of the tank body is installed on a base through a supporting structure. A weighing sensor is also arranged between the supporting structure and the base. The weighing sensor is connected to a control system. An ash inlet pipe and an ash outlet pipe are respectively arranged on the side walls of the tank body. A proportional ash regulating valve is installed on the ash inlet pipe near the side walls of the tank body. The proportional ash regulating valve is also connected to the control system through an electric actuator. A pressure regulating device is arranged on the top of the tank body.

[0006] The present invention is also characterized in that:

[0007] The upper part of the tank body is cylindrical, and the lower part of the tank body is funnel-shaped. An observation hole is arranged on the side wall of the upper part of the tank body. The ash inlet pipe and the ash outlet pipe are both located in the upper part of the tank body. A manhole and a fluidizing device are arranged on the side wall of the lower part of the tank body. There are at least three fluidizing devices which are evenly distributed around the tank body.

[0008] The supporting structure consists of three legs, which are distributed in a triangular shape. The top of each leg is fixedly connected to the tank body, and the bottom of each leg is fixedly connected to the base through a weighing sensor. Each weighing sensor is electrically connected to the control system.

[0009] One end of the ash outlet pipe and the ash inlet pipe are both connected to the interior of the tank body, the other end of the ash inlet pipe is provided with multiple interfaces, the other end of the ash outlet pipe is connected to the joint, a second butterfly valve is provided on the ash outlet pipe, the ash outlet pipe and the ash inlet pipe are connected through an emergency pipe, and a third butterfly valve is provided in the middle of the emergency pipe.

[0010] The joint is any one of a single-end large-diameter joint and a multi-end small-diameter joint.

[0011] The control system comprises a controller, to which a display, a weighing signal conversion device and an electric actuator are respectively connected, and a signal receiving end of the weighing signal conversion device is connected to a weighing sensor through a junction box.

[0012] The pressure regulating device includes a pressure regulating connecting pipe, one end of which is connected to the top of the tank body, a pressure gauge is installed on the pressure regulating connecting pipe, the other end of the pressure regulating connecting pipe is connected to a four-way pipe, and the other three interfaces of the four-way pipe are respectively connected to the post-valve pressure regulating valve, the pre-valve pressure regulating valve and the drain pipe, the post-valve pressure regulating valve and the pre-valve pressure regulating valve are arranged opposite to each other, the inlet end of the pre-valve pressure regulating valve is provided with a fourth butterfly valve, the outlet end of the pre-valve pressure regulating valve is connected to one end of the pressure relief pipe, the other end of the pressure relief pipe is connected to the drain pipe, and a fifth butterfly valve is arranged between the drain pipe and the four-way pipe.

[0013] The proportional ash regulating valve includes a valve body, an end face connecting flange is arranged on the top of the valve body, the valve body is matched and connected with the flange connecting end cover through the end face connecting flange, a through hole is opened in the middle of the flange connecting end cover, a valve core is arranged inside the valve body, and an electric actuator is connected with the valve core through the through hole.

[0014] The valve body includes a valve body shell, which is cylindrical. An end face connecting flange is arranged on the top of the valve body shell, an ash inlet is arranged on the bottom of the valve body shell, and the ash inlet is connected to the ash inlet pipe through a first butterfly valve. A step is arranged on the inner wall of the valve body shell for limiting the valve core. A first rectangular ash outlet is arranged on the side wall of the valve body shell, and the angle between the two vertical sides of the first rectangular ash outlet is 90°. A valve body ash outlet pipe cooperating with the first rectangular ash outlet is also arranged on the side wall of the valve body shell, and the valve body ash outlet pipe includes a rectangular cross-section ash outlet pipe, one end of the rectangular cross-section ash outlet pipe is fixedly connected to the side wall of the valve body shell, and the other end of the rectangular cross-section ash outlet pipe is connected to the circular cross-section ash outlet pipe, the circular cross-section ash outlet pipe is connected to the tank body, and the outlet direction of the circular cross-section ash outlet pipe is tangent to the cylindrical surface of the tank body.

[0015] The valve core is a cylindrical structure as a whole. The valve core is located inside the valve body shell. A first groove and a second groove are respectively opened along the outer wall of the valve core. A first sealing ring and a second sealing ring are matched and installed in the first groove and the second groove. A second rectangular ash outlet is opened on the side wall of the valve core. The second rectangular ash outlet matches the first rectangular ash outlet. The angle between the two vertical sides of the second rectangular ash outlet is 90°. An actuator connecting hole is opened on the top of the valve core, and the valve core is connected to the electric actuator through the actuator connecting hole.

[0016] The beneficial effects of the present invention are:

[0017] (1) The air pressure and cement ash dual-regulation ash conveying control device of the present invention uses a pressure regulating device to accurately control the pressure in the tank. When the pressure in the tank is lower than the set value, the pressure regulating valve after the valve automatically opens, and the air source enters the tank to supplement the pressure. When the pressure in the tank is higher than the set value, the pressure regulating valve before the valve automatically opens, and the high pressure is automatically unloaded. The pressure in the tank can always be maintained constant, so that the pressure fluctuation in the tank is small during the ash conveying process;

[0018] (2) The air pressure and cement ash dual-adjustment ash conveying control device of the present invention monitors the weight of cement ash in the tank through a control system, and uses a proportional ash regulating valve to adjust the ash intake into the tank, so that the weight of cement ash in the tank is in a stable state, ensuring the uniform conveying of cement ash and creating favorable conditions for the subsequent mixer to accurately measure cement ash. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the air pressure and cement ash dual-adjustment ash conveying control device of the present invention;

[0020] Figure 2 It is a top view of the air pressure and cement ash dual-adjustment ash conveying control device of the present invention;

[0021] Figure 3 It is a side view of the air pressure and cement ash dual-adjustment ash conveying control device of the present invention;

[0022] Figure 4 It is a structural schematic diagram of a proportional ash regulating valve in an ash conveying control device for dual regulation of air pressure and cement ash of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a valve body in the air pressure and cement ash dual-adjustment ash conveying control device of the present invention;

[0024] Figure 6 yes Figure 5 Cross-sectional view along the BB direction;

[0025] Figure 7 It is a structural schematic diagram of the valve core in the air pressure and cement ash dual-adjustment ash conveying control device of the present invention;

[0026] Figure 8It is a top view of the valve core in the air pressure and cement ash dual-adjustment ash conveying control device of the present invention;

[0027] Fig. 9 yes Figure 7 Cross-sectional view along DD direction.

[0028] In the figure, 1. tank body, 2. observation hole, 3. ash outlet pipe, 4. ash inlet pipe, 5. base, 6. weighing sensor;

[0029] 7. Proportional ash regulating valve, 701. Valve body, 7011. Valve body shell, 7012. Ash inlet, 7013. First rectangular ash outlet, 7014. Rectangular cross-section ash outlet pipe, 7015. Circular cross-section ash outlet pipe, 7016. Step;

[0030] 702. The end face is connected with a flange, 703. The flange is connected with an end cover;

[0031] 704. valve core, 7041. first groove, 7042. second groove, 7043. first sealing ring, 7044. second sealing ring, 7045. second rectangular ash outlet, 7046. connecting hole;

[0032] 8. Control system, 801. Display, 802. Controller, 803. Weighing signal conversion device, 804. Junction box;

[0033] 9. Fluidizing device, 10. First butterfly valve, 11. Manhole, 12. Electric actuator, 13. Second butterfly valve, 14. Third butterfly valve, 15. Single-end large-diameter joint, 16. Multi-end small-diameter joint, 17. Pressure regulating connecting pipe, 18. Pressure gauge, 19. Pressure regulating valve before valve, 20. Fourth butterfly valve, 21. Pressure relief pipe, 22. Pressure regulating valve after valve, 23. Fifth butterfly valve, 24. Drain pipe, 25. Support leg. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] The air pressure and cement ash dual-adjustment ash conveying device of the present invention is as follows: Figure 1As shown, it includes a tank body 1, the bottom of the tank body 1 is installed on a base 5 through a supporting structure, a weighing sensor 6 is also arranged between the supporting structure and the base 5, and the weighing sensor 6 is connected to a control system 8. The weighing sensor 6 weighs the weight of cement inside the tank body 1 and transmits the weight data to the control system 8, so that the weight of cement inside the tank body 1 can be monitored in real time. An ash inlet pipe 4 and an ash outlet pipe 3 are respectively arranged on the side wall of the tank body 1, and cement ash is filled into the tank body 1 through the ash inlet pipe 4, and then the ash is transported through the ash outlet pipe 3. A proportional ash regulating valve 7 is installed on the ash inlet pipe 4 near the side wall of the tank body 1, and the proportional ash regulating valve 7 is connected to the control system 8 through an electric actuator 12. The proportional ash regulating valve 7 is used to adjust the ash inlet amount of the tank body 1 in real time, so that the weight of cement ash in the tank body 1 is always in a dynamic stable state, ensuring the uniform transportation of cement ash in the pipeline, and a pressure regulating device is arranged on the top of the tank body 1.

[0036] The upper part of the tank body 1 is cylindrical, and the lower part of the tank body 1 is funnel-shaped. An observation hole 2 is arranged on the side wall of the upper part of the tank body 1. The ash inlet pipe 4 and the ash outlet pipe 3 are both located in the upper part of the tank body 1. A manhole 11 and a fluidizing device 9 are respectively arranged on the side wall of the lower part of the tank body 1. There are at least three fluidizing devices 9 and they are evenly distributed around the tank body 1. The fluidizing device 9 can make the cement ash fluidized more fully.

[0037] The supporting structure is composed of three legs 25, which are distributed in a triangular shape. The top of each leg 25 is fixedly connected to the tank body 1, and the bottom of each leg 25 is fixedly connected to the base 5 through a weighing sensor 6. Each weighing sensor 6 is electrically connected to the control system 8.

[0038] The control system 8 includes a controller 802 , to which a display 801 , a weighing signal conversion device 803 and an electric actuator 12 are respectively connected. A signal receiving end of the weighing signal conversion device 803 is connected to the weighing sensor 6 via a junction box 804 .

[0039] The ash outlet pipe 3 and the ash inlet pipe 4 are as follows: Figure 2 As shown, one end of the ash outlet pipe 3 and the ash inlet pipe 4 are both connected to the interior of the tank body 1, and the other end of the ash inlet pipe 4 is provided with multiple interfaces. The other end of the ash outlet pipe 3 is connected to the joint, and a second butterfly valve 13 is provided on the ash outlet pipe 3. The ash outlet pipe 3 and the ash inlet pipe 4 are connected through an emergency pipe, and a third butterfly valve 14 is provided in the middle of the emergency pipe.

[0040] The joint is any one of a single-end large-diameter joint 15 and a multi-end small-diameter joint 16, wherein the large-diameter joint 15 is used for a single device requiring a large flow rate of ash supply, and the multi-end small-diameter joint 16 is used for a single device or multiple devices requiring a small flow rate of ash supply.

[0041] Pressure regulating devices, such as Figure 3As shown, the pressure regulating device includes a pressure regulating connecting pipe 17, one end of which is connected to the top of the tank body 1, and a pressure gauge 18 is installed on the pressure regulating connecting pipe 17. The pressure in the tank body 1 can be directly observed through the pressure gauge 18. The other end of the pressure regulating connecting pipe 17 is connected to a four-way pipe, and the other three interfaces of the four-way pipe are respectively connected to a post-valve pressure regulating valve 22, a pre-valve pressure regulating valve 19 and an exhaust pipe 24. The post-valve pressure regulating valve 22 and the pre-valve pressure regulating valve 19 are arranged opposite to each other. The post-valve pressure regulating valve 22 is used for low-pressure air replenishment, and the pre-valve pressure regulating valve 19 is used for high-pressure unloading. A fourth butterfly valve 20 is provided at the inlet end of the front pressure regulating valve 19, and the outlet end of the front pressure regulating valve 19 is connected to one end of the pressure relief pipe 21, and the other end of the pressure relief pipe 21 is connected to the drain pipe 24, and a fifth butterfly valve 23 is provided between the drain pipe 24 and the four-way pipe. When the pressure in the tank is lower than the set value, the post-valve pressure regulating valve 22 automatically opens, and the air source enters the tank body 1 for pressure replenishment. When the pressure in the tank is higher than the set value, the front-valve pressure regulating valve 19 automatically opens, and the high pressure is automatically unloaded. The pressure in the tank body 1 can always be maintained constant, so that the pressure fluctuation in the tank body 1 is small during the ash conveying process.

[0042] Proportional ash regulating valve 7, such as Figure 4 As shown, the proportional ash regulating valve 7 includes a valve body 701, an end face connecting flange 702 is arranged on the top of the valve body 701, the valve body 701 is matched and connected with the flange connecting end cover 703 through the end face connecting flange 702, a through hole is opened in the middle of the flange connecting end cover 703, a valve core 704 is arranged inside the valve body 701, and the electric actuator 12 is connected with the valve core 704 through the through hole. The proportional ash regulating valve 7 is used to adjust the ash intake of the tank body 1, so that the weight of cement ash in the tank body 1 is in a stable state, ensuring the uniform transportation of cement ash, and creating favorable conditions for the subsequent mixer to accurately measure the cement ash.

[0043] Valve body 701, such as Figure 5 and Figure 6As shown, the valve body 701 includes a valve body shell 7011, the valve body shell 7011 is cylindrical, the top of the valve body shell 7011 is provided with an end face connection flange 702, the bottom of the valve body shell 7011 is an ash inlet 7012, the ash inlet 7012 is connected to the ash inlet pipe 4 through the first butterfly valve 10, the inner wall of the valve body shell 7011 is provided with a step that limits the valve core 704, and a first rectangular ash outlet 7013 is opened on the side wall of the valve body shell 7011. The angle between the two vertical sides of the first rectangular ash outlet 7013 is 90°, and the side of the valve body shell 7011 is provided with a first rectangular ash outlet 7013. A valve body ash outlet pipe that cooperates with the first rectangular ash outlet 7013 is also provided on the wall, and the valve body ash outlet pipe includes a rectangular cross-section ash outlet pipe 7014, one end of the rectangular cross-section ash outlet pipe 7014 is fixedly connected to the side wall of the valve body shell 7011, and the other end of the rectangular cross-section ash outlet pipe 7014 is connected to a circular cross-section ash outlet pipe 7015, and the outlet direction of the circular cross-section ash outlet pipe 7015 is tangent to the inner wall of the tank body 1, so that the cement ash can enter the tank body 1 along the tangential direction and quickly settle along the inner surface of the tank body 1 under the action of centrifugal force, thereby effectively improving the cement ash filling efficiency.

[0044] Valve core 704, such as Figure 7 and Figure 8 ,as well as Fig. 9 As shown, the valve core 704 is a cylindrical structure as a whole. The valve core 704 is located inside the valve body shell 7011. A first groove 7041 and a second groove 7042 are respectively opened along the outer wall of the valve core 704. A first sealing ring 7043 and a second sealing ring 7044 are matched and installed in the first groove 7041 and the second groove 7042. A second rectangular ash outlet 7045 is opened on the side wall of the valve core 704. The second rectangular ash outlet 7045 matches the first rectangular ash outlet 7013. The angle between the two vertical sides of the second rectangular ash outlet 7045 is 90°. By adjusting the rotation angle of the valve core 704, the proportional change of the flow area of ​​the first rectangular ash outlet 7013 can be achieved. An actuator connecting hole 7046 is opened on the top of the valve core 704. The valve core 704 is connected to the electric actuator 12 through the actuator connecting hole 7046. The control system 8 controls the rotation of the valve core 704 through the electric actuator 12.

[0045] The working process of the air pressure and cement ash dual-adjustment ash conveying control device of the present invention is as follows:

[0046] Connect the ash outlet pipe of the ash supply equipment to the ash inlet pipe 4, open the first butterfly valve 10, the fourth butterfly valve 20 and the fifth butterfly valve 23, close the second butterfly valve 13 and the third butterfly valve 14, and manually open the proportional ash regulating valve 7; start the ash supply equipment to fill the tank body 1 with cement ash; after the gas-ash mixture enters the tank body 1 in a tangential direction, it moves in a spiral motion downward along the inner surface of the tank body under the action of gravity, and due to the centrifugal force, the cement ash particles are thrown to the tank wall and separated from the gas, and the airflow continues to move from bottom to top near the central axis of the tank body 1 in the form of a spiral motion, and is discharged from the exhaust pipe 24 after passing through the pressure regulating connecting pipe 17.

[0047] During the cement ash filling process, the weighing sensor 6 at the bottom of the three legs transmits the cement ash weight information in the tank to the controller 802 in real time after being converted by the weighing signal conversion device 803, and displays it on the screen through the display 801. When the cement ash weight reaches the set value, the first butterfly valve 10 and the fifth butterfly valve 23 are closed, and the fluidizing device 9 is opened to fluidize the cement ash in the tank. Then, the air source switch of the post-valve pressure regulating valve 22 is opened to pass the set air pressure, and the first butterfly valve 10 is opened to supply ash to the tank body 1. The second butterfly valve 13 is opened to start ash discharge. The proportional ash regulating valve 7 is controlled by the control system 8. The control system 8 adjusts the valve port size of the proportional ash regulating valve 7 through the electric actuator 12 according to the dry ash weight in the tank body 1 to control the ash intake, so that the cement ash weight in the tank body 1 is always maintained within the set range, so that the density of the fluidized gas-ash mixture in the tank body 1 is maintained constant, ensuring uniform ash delivery from the ash discharge pipeline 3 to the mixer.

[0048] At the same time, since the mixer of the cementing equipment needs to accurately control the amount of ash fed during the water-cement mixing, the ash supply needs to be kept uniform and the ash supply speed needs to be stable. The ash supply speed is related to the ash delivery pressure. The greater the pressure, the faster the ash supply speed, and vice versa. In order to maintain a stable ash supply speed, it is necessary to ensure that the pressure in the tank body 1 is constant. The pressure gauge 18 can directly observe the pressure inside the tank body 1. When the pressure inside the tank body 1 is lower than the set pressure, the post-valve pressure regulating valve 22 automatically opens, and the external gas source replenishes gas to the tank body 1 through the pressure regulating connecting pipe 17. When the pressure inside the tank reaches the set pressure, the post-valve pressure regulating valve 22 closes; when the pressure inside the tank body 1 is higher than the set pressure, the pre-valve pressure regulating valve 19 automatically opens, and the gas in the tank is discharged from the pressure relief pipe 21 through the pressure regulating connecting pipe 17.

[0049] When the ash supply of the tank body 1 fails and cannot meet the ash supply requirements, the third butterfly valve 14 is opened, the first butterfly valve 10 and the second butterfly valve 13 are closed, and the ash is directly supplied from the emergency pipeline to ensure the continuity of the construction.

[0050] The specific embodiment of the air pressure and cement ash dual regulation ash conveying control device of the present invention is as follows:

[0051] Example 1

[0052] The air pressure and cement ash dual-adjustment ash conveying device of the present invention comprises a tank body 1, the bottom of the tank body 1 is installed on a base 5 through a supporting structure, a weighing sensor 6 is also arranged between the supporting structure and the base 5, the weighing sensor 6 is connected to a control system 8, an ash inlet pipe 4 and an ash outlet pipe 3 are respectively arranged on the side walls of the tank body 1, a proportional ash regulating valve 7 is installed on the ash inlet pipe 4 near the side wall of the tank body 1, the proportional ash regulating valve 7 is also connected to the control system 8 through an electric actuator 12, and a pressure regulating device is arranged on the top of the tank body 1.

[0053] The upper part of the tank body 1 is cylindrical, and the lower part of the tank body 1 is funnel-shaped. An observation hole 2 is arranged on the side wall of the upper part of the tank body 1. The ash inlet pipe 4 and the ash outlet pipe 3 are both located in the upper part of the tank body 1. A manhole 11 and a fluidizing device 9 are respectively arranged on the side wall of the lower part of the tank body 1. There are at least three fluidizing devices 9 and they are evenly distributed around the tank body 1.

[0054] The supporting structure consists of three legs, which are distributed in a triangular shape. The top of each leg is fixedly connected to the tank body 1, and the bottom of each leg is fixedly connected to the base 5 through a weighing sensor 6. Each weighing sensor 6 is electrically connected to the control system 8.

[0055] One end of the ash outlet pipe 3 and the ash inlet pipe 4 are both connected to the interior of the tank body 1, and the other end of the ash inlet pipe 4 is provided with multiple interfaces. The other end of the ash outlet pipe 3 is connected to a joint. A second butterfly valve 13 is provided on the ash outlet pipe 3. The ash outlet pipe 3 and the ash inlet pipe 4 are connected through an emergency pipe, and a third butterfly valve 14 is provided in the middle of the emergency pipe.

[0056] The joint is any one of a single-end large-diameter joint 15 and a multi-end small-diameter joint 16 .

[0057] Example 2

[0058] The air pressure and cement ash dual-adjustment ash conveying device of the present invention comprises a tank body 1, the bottom of the tank body 1 is installed on a base 5 through a supporting structure, a weighing sensor 6 is also arranged between the supporting structure and the base 5, the weighing sensor 6 is connected to a control system 8, an ash inlet pipe 4 and an ash outlet pipe 3 are respectively arranged on the side walls of the tank body 1, a proportional ash regulating valve 7 is installed on the ash inlet pipe 4 near the side wall of the tank body 1, the proportional ash regulating valve 7 is also connected to the control system 8 through an electric actuator 12, and a pressure regulating device is arranged on the top of the tank body 1.

[0059] The upper part of the tank body 1 is cylindrical, and the lower part of the tank body 1 is funnel-shaped. An observation hole 2 is arranged on the side wall of the upper part of the tank body 1. The ash inlet pipe 4 and the ash outlet pipe 3 are both located in the upper part of the tank body 1. A manhole 11 and a fluidizing device 9 are respectively arranged on the side wall of the lower part of the tank body 1. There are at least three fluidizing devices 9 and they are evenly distributed around the tank body 1.

[0060] The supporting structure consists of three legs, which are distributed in a triangular shape. The top of each leg is fixedly connected to the tank body 1, and the bottom of each leg is fixedly connected to the base 5 through a weighing sensor 6. Each weighing sensor 6 is electrically connected to the control system 8.

[0061] One end of the ash outlet pipe 3 and the ash inlet pipe 4 are both connected to the interior of the tank body 1, and the other end of the ash inlet pipe 4 is provided with multiple interfaces. The other end of the ash outlet pipe 3 is connected to a joint. A second butterfly valve 13 is provided on the ash outlet pipe 3. The ash outlet pipe 3 and the ash inlet pipe 4 are connected through an emergency pipe, and a third butterfly valve 14 is provided in the middle of the emergency pipe.

[0062] The joint is any one of a single-end large-diameter joint 15 and a multi-end small-diameter joint 16 .

[0063] The control system 8 includes a controller 802 , to which a display 801 , a weighing signal conversion device 803 and an electric actuator 12 are respectively connected. A signal receiving end of the weighing signal conversion device 803 is connected to the weighing sensor 6 via a junction box 804 .

[0064] The pressure regulating device includes a pressure regulating connecting pipe 17, one end of which is connected to the top of the tank body 1, and a pressure gauge 18 is installed on the pressure regulating connecting pipe 17. The other end of the pressure regulating connecting pipe 17 is connected to a four-way pipe, and the other three interfaces of the four-way pipe are respectively connected to a post-valve pressure regulating valve 22, a pre-valve pressure regulating valve 19 and an exhaust pipe 24. The post-valve pressure regulating valve 22 and the pre-valve pressure regulating valve 19 are arranged opposite to each other, and a fourth butterfly valve 20 is arranged at the inlet end of the pre-valve pressure regulating valve 19, and the outlet end of the pre-valve pressure regulating valve 19 is connected to one end of a pressure relief pipe 21, and the other end of the pressure relief pipe 21 is connected to an exhaust pipe 24, and a fifth butterfly valve 23 is arranged between the exhaust pipe 24 and the four-way pipe.

[0065] Example 3

[0066] The air pressure and cement ash dual-adjustment ash conveying device of the present invention comprises a tank body 1, the bottom of the tank body 1 is installed on a base 5 through a supporting structure, a weighing sensor 6 is also arranged between the supporting structure and the base 5, the weighing sensor 6 is connected to a control system 8, an ash inlet pipe 4 and an ash outlet pipe 3 are respectively arranged on the side walls of the tank body 1, a proportional ash regulating valve 7 is installed on the ash inlet pipe 4 near the side wall of the tank body 1, the proportional ash regulating valve 7 is also connected to the control system 8 through an electric actuator 12, and a pressure regulating device is arranged on the top of the tank body 1.

[0067] The upper part of the tank body 1 is cylindrical, and the lower part of the tank body 1 is funnel-shaped. An observation hole 2 is arranged on the side wall of the upper part of the tank body 1. The ash inlet pipe 4 and the ash outlet pipe 3 are both located in the upper part of the tank body 1. A manhole 11 and a fluidizing device 9 are respectively arranged on the side wall of the lower part of the tank body 1. There are at least three fluidizing devices 9 and they are evenly distributed around the tank body 1.

[0068] The supporting structure consists of three legs, which are distributed in a triangular shape. The top of each leg is fixedly connected to the tank body 1, and the bottom of each leg is fixedly connected to the base 5 through a weighing sensor 6. Each weighing sensor 6 is electrically connected to the control system 8.

[0069] One end of the ash outlet pipe 3 and the ash inlet pipe 4 are both connected to the interior of the tank body 1, and the other end of the ash inlet pipe 4 is provided with multiple interfaces. The other end of the ash outlet pipe 3 is connected to a joint. A second butterfly valve 13 is provided on the ash outlet pipe 3. The ash outlet pipe 3 and the ash inlet pipe 4 are connected through an emergency pipe, and a third butterfly valve 14 is provided in the middle of the emergency pipe.

[0070] The joint is any one of a single-end large-diameter joint 15 and a multi-end small-diameter joint 16 .

[0071] The control system 8 includes a controller 802 , to which a display 801 , a weighing signal conversion device 803 and an electric actuator 12 are respectively connected. A signal receiving end of the weighing signal conversion device 803 is connected to the weighing sensor 6 via a junction box 804 .

[0072] The pressure regulating device includes a pressure regulating connecting pipe 17, one end of which is connected to the top of the tank body 1, and a pressure gauge 18 is installed on the pressure regulating connecting pipe 17. The other end of the pressure regulating connecting pipe 17 is connected to a four-way pipe, and the other three interfaces of the four-way pipe are respectively connected to a post-valve pressure regulating valve 22, a pre-valve pressure regulating valve 19 and an exhaust pipe 24. The post-valve pressure regulating valve 22 and the pre-valve pressure regulating valve 19 are arranged opposite to each other, and a fourth butterfly valve 20 is arranged at the inlet end of the pre-valve pressure regulating valve 19, and the outlet end of the pre-valve pressure regulating valve 19 is connected to one end of a pressure relief pipe 21, and the other end of the pressure relief pipe 21 is connected to an exhaust pipe 24, and a fifth butterfly valve 23 is arranged between the exhaust pipe 24 and the four-way pipe.

[0073] The proportional ash regulating valve 7 includes a valve body 701, an end face connecting flange 702 is arranged at the top of the valve body 701, the valve body 701 is matched and connected with the flange connecting end cover 703 through the end face connecting flange 702, a through hole is opened in the middle of the flange connecting end cover 703, a valve core 704 is arranged inside the valve body 701, and the electric actuator 12 is connected to the valve core 704 through the through hole.

[0074] The valve body 701 includes a valve body shell 7011, which is cylindrical. The top of the valve body shell 7011 is provided with an end face connection flange 702. The bottom of the valve body shell 7011 is an ash inlet 7012, which is connected to the ash inlet pipe 4 through the first butterfly valve 10. The inner wall of the valve body shell 7011 is provided with a step 7016 that limits the valve core 704. The side wall of the valve body shell 7011 is provided with a first rectangular ash outlet 7013. The first rectangular ash outlet 7013 has two vertical sides. The angle between the two surfaces is 90°, and a valve body ash outlet pipe cooperating with the first rectangular ash outlet 7013 is also arranged on the side wall of the valve body shell 7011, and the valve body ash outlet pipe includes a rectangular cross-section ash outlet pipe 7014, one end of the rectangular cross-section ash outlet pipe 7014 is fixedly connected to the side wall of the valve body shell 7011, and the other end of the rectangular cross-section ash outlet pipe 7014 is connected to the circular cross-section ash outlet pipe 7015, the circular cross-section ash outlet pipe 7015 is connected to the tank body 1, and the outlet direction of the circular cross-section ash outlet pipe 7015 is tangent to the cylindrical surface of the tank body 1.

[0075] The valve core 704 is a cylindrical structure as a whole. The valve core 704 is located inside the valve body shell 7011. A first groove 7041 and a second groove 7042 are respectively opened along the outer wall of the valve core 704. A first sealing ring 7043 and a second sealing ring 7044 are matched and installed in the first groove 7041 and the second groove 7042. A second rectangular ash outlet 7045 is opened on the side wall of the valve core 704. The second rectangular ash outlet 7045 matches the first rectangular ash outlet 7013, and the angle between the two vertical sides of the second rectangular ash outlet 7045 is 90°. An actuator connecting hole 7046 is opened on the top of the valve core 704, and the valve core 704 is connected to the electric actuator 12 through the actuator connecting hole 7046.

Claims

1. Air pressure and cement ash dual adjustment ash conveying device, characterized in that: The invention comprises a tank body (1), wherein the bottom of the tank body (1) is mounted on a base (5) via a supporting structure, a weighing sensor (6) is further arranged between the supporting structure and the base (5), and the weighing sensor (6) is connected to a control system (8), an ash inlet pipe (4) and an ash outlet pipe (3) are respectively arranged on the side walls of the tank body (1), a proportional ash regulating valve (7) is installed on the ash inlet pipe (4) near the side wall of the tank body (1), and the proportional ash regulating valve (7) is further connected to the control system (8) via an electric actuator (12), and a pressure regulating device is arranged on the top of the tank body (1).

2. The air pressure and cement ash dual adjustment ash conveying device according to claim 1 is characterized in that: The upper part of the tank body (1) is cylindrical, and the lower part of the tank body (1) is funnel-shaped. An observation hole (2) is provided on the side wall of the upper part of the tank body (1). The ash inlet pipe (4) and the ash outlet pipe (3) are both located in the upper part of the tank body (1). A manhole (11) and a fluidizing device (9) are provided on the side wall of the lower part of the tank body (1). There are at least three fluidizing devices (9) that are evenly distributed around the tank body (1).

3. The air pressure and cement ash dual adjustment ash conveying device according to claim 1 is characterized in that: The support structure is composed of three legs, which are distributed in a triangular shape. The top of each leg is fixedly connected to the tank body (1), and the bottom of each leg is fixedly connected to the base (5) through a weighing sensor (6). Each weighing sensor (6) is electrically connected to a control system (8).

4. The air pressure and cement ash dual adjustment ash conveying device according to claim 1 is characterized in that: One end of the ash outlet pipe (3) and the ash inlet pipe (4) are both connected to the interior of the tank body (1), the other end of the ash inlet pipe (4) is provided with a plurality of interfaces, the other end of the ash outlet pipe (3) is connected to a joint, a second butterfly valve (13) is provided on the ash outlet pipe (3), the ash outlet pipe (3) and the ash inlet pipe (4) are connected via an emergency pipe, and a third butterfly valve (14) is provided in the middle of the emergency pipe.

5. The air pressure and cement ash dual adjustment ash conveying device according to claim 4 is characterized in that: The joint is any one of a single-end large-diameter joint (15) and a multi-end small-diameter joint (16).

6. The air pressure and cement ash dual adjustment ash conveying device according to claim 1 is characterized in that: The control system (8) comprises a controller (802), to which a display (801), a weighing signal conversion device (803) and an electric actuator (12) are respectively connected, and a signal receiving end of the weighing signal conversion device (803) is connected to a weighing sensor (6) via a junction box (804).

7. The air pressure and cement ash dual adjustment ash conveying device according to claim 1 is characterized in that: The pressure regulating device comprises a pressure regulating connecting pipe (17), one end of which is connected to the top of the tank body (1), a pressure gauge (18) is installed on the pressure regulating connecting pipe (17), the other end of which is connected to a four-way pipe, the other three interfaces of the four-way pipe are respectively connected to a post-valve pressure regulating valve (22), a pre-valve pressure regulating valve (19) and an exhaust pipe (24), the post-valve pressure regulating valve (22) and the pre-valve pressure regulating valve (19) are arranged opposite to each other, a fourth butterfly valve (20) is arranged at the inlet end of the pre-valve pressure regulating valve (19), the outlet end of the pre-valve pressure regulating valve (19) is connected to one end of a pressure relief pipe (21), the other end of the pressure relief pipe (21) is connected to an exhaust pipe (24), and a fifth butterfly valve (23) is arranged between the exhaust pipe (24) and the four-way pipe.

8. The air pressure and cement ash dual adjustment ash conveying device according to claim 1 is characterized in that: The proportional ash regulating valve (7) comprises a valve body (701), an end face connecting flange (702) is arranged at the top end of the valve body (701), the valve body (701) is matched and connected with a flange connecting end cover (703) via the end face connecting flange (702), a through hole is opened in the middle of the flange connecting end cover (703), a valve core (704) is arranged inside the valve body (701), and the electric actuator (12) is connected to the valve core (704) via the through hole.

9. The air pressure and cement ash dual adjustment ash conveying device according to claim 8, characterized in that: The valve body (701) comprises a valve body shell (7011), the valve body shell (7011) is cylindrical, an end face connecting flange (702) is arranged at the top of the valve body shell (7011), an ash inlet (7012) is arranged at the bottom of the valve body shell (7011), the ash inlet (7012) is connected to the ash inlet pipe (4) via a first butterfly valve (10), a step (7016) is arranged on the inner wall of the valve body shell (7011) for limiting the valve core (704), a first rectangular ash outlet (7013) is arranged on the side wall of the valve body shell (7011), and the first rectangular ash outlet (7013) is provided on the inner wall of the valve body shell (7011). 3) The angle between the two vertical side surfaces is 90°. The side wall of the valve body shell (7011) is also provided with a valve body ash outlet pipe that cooperates with the first rectangular ash outlet (7013). The valve body ash outlet pipe includes a rectangular cross-section ash outlet pipe (7014). One end of the rectangular cross-section ash outlet pipe (7014) is fixedly connected to the side wall of the valve body shell (7011), and the other end of the rectangular cross-section ash outlet pipe (7014) is connected to a circular cross-section ash outlet pipe (7015). The circular cross-section ash outlet pipe (7015) is connected to the tank body (1), and the outlet direction of the circular cross-section ash outlet pipe (7015) is tangent to the cylindrical surface of the tank body (1).

10. The air pressure and cement ash dual-adjustment ash conveying device according to claim 8, characterized in that: The valve core (704) is a cylindrical structure as a whole. The valve core (704) is located inside the valve body shell (7011). A first groove (7041) and a second groove (7042) are respectively provided along the outer wall of the valve core (704). A first sealing ring (7043) and a second sealing ring (7044) are matched and installed in the first groove (7041) and the second groove (7042). A second rectangular ash outlet (7045) is provided on the side wall of the valve core (704). The second rectangular ash outlet (7045) matches the first rectangular ash outlet (7013). The angle between the two vertical sides of the second rectangular ash outlet (7045) is 90°. An actuator connecting hole (7046) is provided on the top of the valve core (704). The valve core (704) is connected to the electric actuator (12) through the actuator connecting hole (7046).

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