Full-automatic pressure-stabilizing lime discharging tank

Abstract

The utility model relates to the technical field of well cementation equipment, in particular to a full-automatic pressure-stabilizing cement discharging tank which comprises a tank body, and a weighing assembly is arranged on a lower supporting leg of the tank body. The pressure stabilizing assembly comprises a pressure stabilizing bag, a pressure stabilizing air source inlet and a bypass pipe are arranged on the pressure stabilizing bag, the bypass pipe is connected with a straight discharging pipe, and a main emptying valve and a straight discharging valve are arranged on the straight discharging pipe; the air source system comprises an air distribution bag, and an external air inlet valve, a pressure stabilizing air source air inlet valve, a line sweeping valve and a tank body air inlet valve are arranged on the air distribution bag; the line sweeping valve is connected with the direct discharge pipe, the tank body air inlet valve is connected with the tank body, and the pressure stabilizing air source air inlet valve is sequentially connected with an electric proportional valve and an electric control air path reversing valve and then is connected to a pressure stabilizing air source inlet; and the PLC is connected with the valve of the pressure-stabilizing ash discharging tank, the control signal cable and the weighing assembly. The pressure stabilizing assembly, the gas source system and the PLC control system are designed in a matched mode, automatic control over electronic elements such as various valves is achieved, and the pressure, the gas-solid proportion and the ash supply amount of the pressure stabilizing bag can be effectively controlled.

Description

Technical Field

[0001] This utility model relates to the field of cementing equipment technology, specifically to a fully automatic pressure-stabilizing ash tank. Background Technology

[0002] Currently, varying numbers of 24m cementing tools are typically placed at cementing operation sites. 3 The cement truck uses a cement hopper. The construction team prepares cement in advance according to the work requirements. Before work begins, the ash discharge port of the ash hopper is connected to the cement truck's ash inlet. The cement truck has two ash inlets, allowing simultaneous connection to two ash discharge pipelines. During operation, continuous ash supply is achieved by controlling the pneumatic valve at the cement truck's inlet and the manual valve at the ash discharge port of the ash hopper. However, the ash supply speed of the ash hopper is easily affected by various factors such as conveying distance, internal pressure, and material level, leading to fluctuations in the ash supply. When the material level decreases, the air-to-solid ratio increases due to the looser material at the bottom of the discharge port, causing the ash supply speed to gradually slow down. This phenomenon complicates the water-cement ratio control during the mixing process, requiring constant adjustment of the water valve and the cement truck's ash inlet valve. Improper operation or untimely switching of ash hoppers can also cause ash supply interruptions. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a fully automatic pressure-stabilizing ash tank that can automatically control the operation of the pressure-stabilizing tank and effectively control the pressure of the pressure-stabilizing pack.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A fully automatic pressure-stabilized ash hopper includes:

[0006] The tank body is equipped with support legs at the bottom, and a weighing component is installed at the bottom of the support legs.

[0007] The pressure stabilizing assembly includes a pressure stabilizing package with a top cover; the top cover has a pressure stabilizing gas inlet; the pressure stabilizing package has a bypass pipe connected to a direct discharge pipe, which is connected to the tank body; the lower end of the pressure stabilizing package has a bypass valve; and the direct discharge pipe has a main vent valve and a direct discharge valve located before and after the bypass pipe, respectively.

[0008] The gas supply system includes a gas distribution manifold, which is equipped with an external inlet valve, a pressure-stabilizing gas source inlet valve, a line-sweeping valve, and a tank inlet valve. The line-sweeping valve is connected to the straight-through pipe. The tank inlet valve is connected to the tank. The pressure-stabilizing gas source inlet valve, which is led out from the gas distribution manifold, is connected to an electro-proportional valve and an electro-controlled gas path reversing valve in sequence through the pressure-stabilizing gas source gas path, and then connected to the pressure-stabilizing gas source inlet at the upper end of the pressure-stabilizing manifold. The upper end of the electro-proportional valve is equipped with a control signal cable for controlling the opening degree of the electro-proportional valve.

[0009] The discharge valve of the pressure stabilizing tank is located on the discharge pipe on one side of the tank body;

[0010] The discharge valve, located at the bottom of the tank, is used to control the discharge.

[0011] The PLC is connected to the valves, control signal cables, and weighing components of the pressure-stabilized ash hopper. The valves of the pressure-stabilized ash hopper include the pressure hopper discharge valve, unloading valve, bypass valve, main vent valve, direct discharge valve, external air inlet valve, pressure-stabilized air source inlet valve, line sweeping valve, tank body air inlet valve, electro-proportional valve, electro-controlled air circuit reversing valve, unloading valve, etc., which are automatically controlled by the PLC.

[0012] Furthermore, the PLC is placed in a control box, which includes a box body and is equipped with a power interface, a network cable interface, a transmission cable interface, and a valve cable connection port for connecting to the PLC.

[0013] Furthermore, a pressure reducing valve connected to the PLC is also provided between the tank's air inlet valve and the air distribution manifold.

[0014] Furthermore, the housing is equipped with a display screen to show information such as the weight of the pressure stabilizing tank.

[0015] Furthermore, the tank body includes a cylindrical body, with an elliptical head at the top and a conical head at the bottom. The conical head has a support leg at the bottom, and a weighing component is provided at the bottom of the support leg.

[0016] Furthermore, a maintenance manhole is provided in the middle of the cylinder.

[0017] Furthermore, the elliptical end cap is equipped with a safety valve and a pressure sensor connected to the PLC.

[0018] Furthermore, a base is provided at the bottom of the tank.

[0019] Furthermore, the control box is mounted on the tank base.

[0020] Furthermore, a feed pipe is provided on one side of the tank, and the feed pipe is equipped with several tank feed valves connected to the PLC.

[0021] Technical effects of this utility model:

[0022] Compared with the prior art, the design of the pressure stabilizing component and the gas source system of this utility model, combined with the PLC control system, realizes the automatic control of various valves and other electronic components. It can effectively control the pressure of the pressure stabilizing pack, the gas-solid ratio and the amount of ash supplied, so that the water-cement ratio in the slurry mixing process can be controlled more effectively, avoiding the problem of ash interruption caused by improper manual operation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the fully automatic pressure-stabilizing ash tank of this utility model;

[0024] Figure 2 This is a rear view of the fully automatic pressure-stabilizing ash tank of this utility model;

[0025] Figure 3 This is a front view of the fully automatic pressure-stabilizing ash tank of this utility model;

[0026] Figure 4 This is a perspective view of the control box of this utility model;

[0027] Figure 5 This is the front view of the control box of this utility model.

[0028] In the diagram, 100 is the tank body; 200 is the pressure stabilizing component; 300 is the feed pipe; 400 is the air supply system; 500 is the control box; 600 is the pressure stabilizing tank discharge valve; and 700 is the unloading valve.

[0029] 101. Safety valve; 102. Manhole; 103. Pressure sensor; 104. Weighing assembly; 105. Base; 106. Shell; 107. Elliptical head; 108. Conical head; 109. Support leg;

[0030] 201. Pressure stabilizing unit; 202. Top cover; 203. Pressure stabilizing gas inlet; 204. Bypass pipe; 205. Main vent valve; 206. Direct vent valve; 207. Bypass valve; 208. Direct vent pipe;

[0031] 301. Feed valve for tank #1; 302. Feed valve for tank #2; 303. Feed valve for tank #3; 304. Plug;

[0032] 401. Gas manifold; 402. External air inlet valve; 403. Pressure-stabilized air source inlet valve; 404. Line sweeping valve; 405. Pressure reducing valve; 406. Tank inlet valve; 4031. Electro-proportional valve; 4032. Control signal cable; 4033. Electro-controlled air circuit reversing valve;

[0033] 501. Housing; 502. Front window; 503. Display screen; 504. Network cable interface; 505. Power interface; 506. Transmission cable interface for tank #1; 507. Transmission cable interface for tank #2; 508. Transmission cable interface for tank #3; 509. Cable interface for discharge valve of pressure stabilizing tank; 510. Cable interface for feed valve of tank #1; 511. Cable interface for feed valve of tank #2; 512. Cable interface for feed valve of tank #3; 513. Cable interface for venting and sweeping valve; 514. Cable interface for air inlet valve of tank body; 515. Cable interface for bypass valve; 516. Cable interface for direct discharge valve; 517. Cable interface for main vent valve; 518. Cable interface for sensor #1; 519. Cable interface for sensor #2; 520. Cable interface for sensor #3; 521. Cable interface for pressure sensor; 522. Cable interface for electro-proportional valve; 523. Cable interface for unloading valve. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0035] Example 1:

[0036] like Figure 1 and 2 As shown, this embodiment relates to a fully automatic pressure-stabilized ash hopper, which includes a hopper body 100, a pressure stabilizing component 200, a feed pipe 300, an air source system 400, a control box 500, a pressure-stabilized hopper discharge valve 600, and a discharge valve 700.

[0037] like Figure 3 As shown, the tank 100 includes a cylindrical body 106, with an elliptical end cap 107 at the top and a conical end cap 108 at the bottom. A maintenance manhole 102 is provided in the middle of the cylindrical body 106. A support leg 109 is provided at the bottom of the conical end cap 108. A weighing component 104 is provided at the bottom of the support leg 109. A base 105 is provided at the bottom of the tank 100. A safety valve 101 and a pressure sensor 103 are provided on the elliptical end cap 107.

[0038] like Figure 3 As shown, the pressure stabilizing assembly 200 includes a pressure stabilizing package 201, with an upper cover 202 on the upper part of the pressure stabilizing package 201. The pressure stabilizing package 201 and the upper cover 202 are connected in a movable manner, preferably by a clamp connection. The upper cover 202 is provided with a pressure stabilizing gas inlet 203. A bypass pipe 204 is provided on the pressure stabilizing package 201, which is connected to a direct discharge pipe 208. The direct discharge pipe 208 is connected to a conical end cap 108. A bypass valve 207 is provided at the lower end of the pressure stabilizing package 201. A main vent valve 205 and a direct discharge valve 206 are respectively provided on the direct discharge pipe 208 at positions before and after the bypass pipe 204.

[0039] like Figure 1 As shown, the feed pipe 300 is located on one side of the cylinder 106. The feed pipe 300 is equipped with a No. 1 tank feed valve 301, a No. 2 tank feed valve 302 and a No. 3 tank feed valve 303. A plug 304 is provided at the tail end of the feed pipe 300.

[0040] like Figure 3As shown, the gas source system 400 includes a gas distribution manifold 401, which is equipped with an external gas inlet valve 402, a pressure-stabilizing gas source inlet valve 403, a line sweeping valve 404, a pressure reducing valve 405, and a tank inlet valve 406. The sweep valve 404 is connected to the straight discharge pipe 208; the tank inlet valve 406 is connected to the tank 100, and a pressure reducing valve 405 is also provided between the tank inlet valve 406 and the gas distribution manifold 401; the pressure-stabilizing gas source inlet valve 403 led out from the gas distribution manifold 401 is connected in sequence through the pressure-stabilizing gas source air circuit to an electro-proportional valve 4031 and an electro-controlled air circuit reversing valve 4033, and then connected to the pressure-stabilizing gas source inlet 203 at the upper end of the pressure-stabilizing manifold 201; the upper end of the electro-proportional valve 4031 is provided with a control signal cable 4032 for controlling the opening of the electro-proportional valve 4031, and the control gas source pressure of the pressure-stabilizing manifold 201 is set by a PID (Proportional Integral Derivative) control system. The electro-controlled air circuit reversing valve 4033 controls whether the pressure-stabilizing gas source air circuit is connected or closed by an electrical signal transmitted from the PLC. When the pressure-stabilizing gas source circuit is connected, the pressure stabilizing unit 201 can work. When the pressure-stabilizing gas source circuit is closed, the pressure stabilizing function of the pressure stabilizing unit 201 is turned off, and the gas in the vent pipe can be directly vented through the straight vent pipe 208 and the main vent valve 205.

[0041] like Figure 2 As shown, the pressure stabilizing tank discharge valve 600 is located on the discharge pipe on one side of the conical end cap 108 of the tank body 100. The unloading valve 700 is located at the bottom of the tank body 100 and is used to control unloading.

[0042] like Figure 1 As shown, the control box 500 is mounted on the base 105, and the PLC is placed inside the control box 500. Figure 4 and Figure 5As shown, the control box 500 includes a box body 501. A front window 502 is provided on one side of the front of the box body 501, and a weight display screen 503 capable of displaying the weight of the pressure stabilizing tank is located inside the front window 502. One side of the box body 501 is provided with an external power interface 505 and a network cable interface 504, as well as signal and power transmission cable interfaces for three corresponding bulk material tanks: a transmission cable interface 506 for tank #1, a transmission cable interface 507 for tank #2, and a transmission cable interface 508 for tank #3. The lower side of the box body 501 has multiple cable connection ports, including those for the pressure stabilizing tank discharge port. The control box 500 includes cable interfaces for various valves, sensors, and other electrical components, such as valve cable interface 509, #1 tank feed valve cable interface 510, #2 tank feed valve cable interface 511, #3 tank feed valve cable interface 512, venting and sweeping valve cable interface 513, tank inlet valve cable interface 514, bypass valve cable interface 515, direct discharge valve cable interface 516, main venting valve cable interface 517, #1 sensor cable interface 518, #2 sensor cable interface 519, #3 sensor cable interface 520, pressure sensor cable interface 521, electro-proportional valve cable interface 522, and unloading valve cable interface 523. It can automatically control these components to achieve automatic material feeding and discharging, air feeding and discharging, and tank pressure regulation.

[0043] This invention automatically controls the pressure stabilizing switch of the pressure stabilizing tank 201 via an electro-proportional valve 4031. The control air source pressure of the pressure stabilizing tank 201 is set using a PID (Proportional Integral Derivative) algorithm. The pressure and flow rate of the pressure stabilizing switch of the pressure stabilizing tank 201 are controlled via the control signal cable 4032 of the electro-proportional valve 4031, thereby automatically controlling the material conveying operation of the pressure stabilizing tank and providing system support for fully automatic pressure-stabilized ash discharge. The pressure stabilizing tank of this invention has three feed valves, each connected to a corresponding bulk material tank. A PLC can control the sequential discharge of the bulk material tanks and the valves participating in pressure-stabilized ash discharge in the pressure stabilizing tank. The number of bulk material tanks is not limited to the three mentioned above and can be configured according to the depth of the cementing well.

[0044] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the above-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A full-automatic constant pressure ash discharging tank, characterized in that, The utility model relates to a stable pressure under ash tank, including: The tank body is equipped with supporting legs at the lower part, and the bottom of the supporting legs is equipped with a weighing assembly; The stable pressure assembly includes a stable pressure bag, and the upper part of the stable pressure bag is equipped with an upper cover; the upper cover is equipped with a stable pressure gas source inlet; the stable pressure bag is equipped with a bypass pipe, and the bypass pipe is connected with a direct discharge pipe; the direct discharge pipe is connected with the tank body; the lower end of the stable pressure bag is equipped with a bypass valve; the direct discharge pipe is equipped with a total emptying valve and a direct discharge valve at the front and rear positions of the bypass pipe respectively; The gas source system includes a gas distribution bag, and the gas distribution bag is equipped with an external gas inlet valve, a stable pressure gas source inlet valve, a wire sweeping valve and a tank body gas inlet valve; the wire sweeping valve is connected with the direct discharge pipe; the tank body gas inlet valve is connected with the tank body; the stable pressure gas source inlet valve led out of the gas distribution bag is connected with an electric proportional valve and an electric control gas path reversing valve in sequence through a stable pressure gas source gas path, and then connected into the stable pressure gas source inlet at the upper end of the stable pressure bag; the upper end of the electric proportional valve is equipped with a control signal cable for controlling the opening degree of the electric proportional valve; The stable pressure tank discharge valve is arranged on the discharge pipe at one side of the tank body; The discharge valve is arranged at the bottom of the tank body; The PLC is connected with the valves of the stable pressure under ash tank, control signal cables and the weighing assembly.

2. The fully automatic pressure-stabilized ash discharging tank according to claim 1, characterized in that, The PLC is arranged in a control box, and the control box includes a box body; the box body is equipped with a power supply interface and a network cable interface connected with the PLC, a transmission cable interface and a valve cable connection port.

3. The fully automatic pressure-stabilized ash discharging tank according to claim 2, characterized in that, The box body is equipped with a display screen.

4. The fully automatic pressure-stabilized ash discharging tank according to claim 1, characterized in that, A pressure reducing valve connected with the PLC is further arranged between the tank body gas inlet valve and the gas distribution bag.

5. The fully automatic pressure-stabilized ash discharging tank according to claim 1, characterized in that, The tank body includes a cylinder body, and the upper part of the cylinder body is an elliptical head, and the lower part of the cylinder body is a conical head; the lower part of the conical head is equipped with supporting legs, and the bottom of the supporting legs is equipped with a weighing assembly.

6. The fully automatic pressure-stabilized ash discharging tank according to claim 5, characterized in that, The middle part of the cylinder body is equipped with a manhole for maintenance.

7. The fully automatic pressure-stabilized ash discharging tank according to claim 5, characterized in that, The upper surface of the elliptical head is equipped with a safety valve and a pressure sensor connected with the PLC.

8. The fully automatic pressure-stabilized ash discharging tank according to claim 2, characterized in that, The bottom of the tank body is equipped with a base.

9. The fully automatic pressure-stabilized ash discharging tank according to claim 8, characterized in that, The control box is installed on the base of the tank body.

10. The fully automatic pressure-stabilized ash discharging tank according to any one of claims 1-9, characterized in that, A feeding pipe is arranged at one side of the tank body, and the feeding pipe is equipped with a plurality of tank body feeding valves connected with the PLC.

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