An automatic pressure relief and regulation device for high-pressure ammonia water

Abstract

This utility model relates to the field of high-pressure ammonia water pressure regulation, specifically a high-pressure ammonia water automatic pressure relief and regulation device. It includes an overflow pipe installed on the coke oven riser pipe as a branch, equipped with a safety valve and a check valve; a spring-loaded plunger installed inside the coke oven riser pipe; and a pressure relief modulation assembly mainly composed of a screw, pressure relief switch, support rod, etc., which works in conjunction with the movable plunger. The advantages of this utility model compared to existing technologies are: firstly, an overflow pipe is added to the coke oven riser pipe to reduce the ammonia water pressure by diverting the ammonia water within the pipe; secondly, a water pressure monitoring assembly is installed inside the coke oven riser pipe, along with a water pressure threshold preset assembly. By monitoring the water pressure in real time and synchronously transmitting the data according to the water pressure, the device promptly activates diversion and pressure relief measures when the ammonia water pressure exceeds the limit, automatically regulating and flexibly controlling the ammonia water pressure within the pipe.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure ammonia water pressure regulation, specifically to a high-pressure ammonia water automatic pressure relief and regulation device. Background Technology

[0002] When charging coal in a coke oven, a relatively high pressure ammonia water is required. The pressure inside the pipe is increased by installing a high pressure ammonia water pump. However, the pump is inconvenient to control flexibly, and there is always a waiting period for the adjustment process when adjusting the water pressure.

[0003] When the ammonia water pressure is too high, the ammonia water atomization effect inside the pipe increases, which threatens the stability of the gas collecting pipe pressure, the sealing of the coke oven, and its service life. Therefore, an automatic pressure relief and regulation device for high-pressure ammonia water is provided. Utility Model Content

[0004] The technical problem this invention aims to solve is that the regulation of high-pressure ammonia water in the coke oven riser pipe lacks flexibility, making it impossible to quickly adjust the pressure and directly reflect the results.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an automatic pressure relief and regulation device for high-pressure ammonia water, including a coke oven riser pipe and a high-pressure ammonia water pump installed on the coke oven riser pipe.

[0006] The coke oven riser pipe is bent to one side by a tee pipe. A stopper is installed inside the tee pipe. The liquid in the front end of the coke oven riser pipe pushes the stopper according to the hydraulic pressure in the pipe. The liquid flows from the space opened by the stopper into the rear end of the coke oven riser pipe.

[0007] A control box is installed on the coke oven riser pipe, and a touch switch is installed inside the control box. One end of the plunger is connected to a support rod that extends into the control box and is used to trigger the pressure relief switch by touch.

[0008] One end of the control box is embedded in the coke oven riser pipe and is connected to a reset component that causes the plug to return to its original position after the pipeline is depressurized.

[0009] The regulating box is equipped with a modulation component for setting the pressure relief parameters by changing the position of the pressure relief switch.

[0010] The coke oven riser pipe is located on one side of the area between the high-pressure ammonia pump and the plunger, and is connected to an overflow pipe. A safety valve associated with the pressure relief switch is installed on the overflow pipe.

[0011] Furthermore, the modulation assembly includes a screw rotatably connected to the top of the control box, a handle extending outward from one side of the control box at the end of the screw, a threaded sleeve connected to the screw, a limiting assembly for preventing the screw sleeve from rotating inside the control box, and a support for mounting a pressure relief switch at the bottom connected below the screw sleeve.

[0012] Furthermore, the limiting component includes a slide installed inside the control box and located on both sides of the support, and slide rods that are slidably connected to the slides on both sides of the support.

[0013] Furthermore, the reset assembly includes a square slide cylinder embedded in the coke oven riser pipe on one side of the control box. A reset spring is installed between the slide cylinder and the plug. The support rod is square and is embedded in the slide cylinder in a sliding connection to provide a limiting function for the reset spring.

[0014] Furthermore, a drain pipe is installed below the control box.

[0015] Furthermore, a one-way valve is installed on the overflow pipe to prevent ammonia water in the overflow pipe from flowing back into the coke oven riser pipe.

[0016] The advantages of this invention compared to existing technologies are as follows: Firstly, an overflow pipe is added to the coke oven riser pipe to reduce the ammonia water pressure inside the pipe by diverting the ammonia water. Secondly, a water pressure monitoring component is installed inside the coke oven riser pipe, along with a water pressure threshold preset component. By monitoring the water pressure inside the pipe in real time and synchronously transmitting the transmission according to the water pressure, the diversion and pressure relief measures are activated in a timely manner when the ammonia water pressure inside the pipe exceeds the standard, thereby automatically adjusting and flexibly controlling the ammonia water pressure inside the pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of an automatic pressure relief and regulating device for high-pressure ammonia water according to this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the external structure of an automatic pressure relief and regulating device for high-pressure ammonia water according to this utility model. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the internal structure of a high-pressure ammonia water automatic pressure relief and regulation device according to this utility model. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the internal structure of a high-pressure ammonia water automatic pressure relief and regulation device according to this utility model. Figure 2 .

[0021] Figure 5 yes Figure 3 A partial structural diagram.

[0022] Figure 6 yes Figure 4 A partial structural diagram.

[0023] Figure 7 yes Figure 5 A schematic diagram of the structure of part A.

[0024] As shown in the figure: 1. Coke oven riser pipe, 2. High-pressure ammonia pump, 3. Overflow pipe, 4. Check valve, 5. Safety valve, 6. Control box, 7. Screw, 8. Handle, 9. Screw sleeve, 10. Support, 11. Pressure relief switch, 12. Slide rod, 13. Slide frame, 14. Support rod, 15. Slide cylinder, 16. Return spring, 17. Plug, 18. Drain pipe. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an automatic pressure relief and regulating device for high-pressure ammonia water, combined with an attached... Figure 1-2 This includes a coke oven riser pipe 1 and a high-pressure ammonia pump 2 installed on the coke oven riser pipe 1. The coke oven riser pipe 1 is bent to one side by installing a tee pipe, combined with an attached... Figure 3 The coke oven riser pipe 1 is equipped with a plug 17 inside the three-way pipe. The liquid in the front end of the coke oven riser pipe 1 pushes the plug 17 according to the hydraulic pressure in the pipe, and the liquid flows from the space opened by the plug 17 into the rear end of the coke oven riser pipe 1.

[0027] At the location of the coke oven riser pipe 1 downstream of the high-pressure ammonia pump 2, a branch is set up, and a plug 17 is blocked at the branch position. The plug 17 is movable inside the pipe and is pushed backward by the water flow in front. The space opened up by the plug 17 is the ammonia water flow channel, and the degree to which the plug 17 moves backward is directly related to the water pressure.

[0028] Combined with appendix Figure 5 A control box 6 is installed on the coke oven riser pipe 1. A touch switch is installed inside the control box 6. One end of the plunger 17 is connected to a support rod 14 that extends into the control box 6 and is used to trigger the pressure relief switch 11 by touch.

[0029] As an extension of the plunger 17, the support rod 14 moves the same distance as the plunger 17 is pushed backward by the water pressure. When the water pressure reaches the preset pressure, the support rod 14 also moves to the limit position and touches the pressure relief switch 11, thereby activating the pressure relief mechanism on the coke oven riser pipe 1.

[0030] Combined with appendix Figure 1-2The coke oven riser pipe 1 is located on one side of the area between the high-pressure ammonia pump 2 and the plug 17, and is connected to an overflow pipe 3. A safety valve 5 associated with the pressure relief switch 11 is installed on the overflow pipe 3, and a one-way valve 4 is installed on the overflow pipe 3 to prevent ammonia water in the overflow pipe 3 from flowing back into the coke oven riser pipe 1.

[0031] Between the high-pressure ammonia pump 2 and the pressure measuring plunger 17 on the coke oven riser pipe 1, a three-way pipe is also installed to provide a pressure relief water flow channel for the coke oven riser pipe 1, namely the overflow pipe 3. The other end of the overflow pipe 3 is connected to the container that provides ammonia water. Its purpose is to divert the ammonia water in the coke oven riser pipe 1 and reduce the ammonia water pressure in the pipe.

[0032] Combined with appendix Figure 3-4 The control box 6 is equipped with related electrical control equipment that is compatible with the pressure relief switch 11. This is within the scope of existing technology and will not be elaborated on here. The pressure relief switch 11 is interconnected with the safety valve 5 through the electrical control equipment and related control system. Under normal conditions, the safety valve 5 on the overflow pipe 3 is in a normally closed state. After the start signal is transmitted through the pressure relief switch 11, it opens and provides a pressure relief diversion channel for the coke oven riser pipe 1.

[0033] Combined with appendix Figure 5 The control box 6 is embedded in the coke oven riser pipe 1 at one end and is connected to a reset component that causes the plug 17 to return to its original position after the pressure in the pipeline is released. The reset component includes a square slide cylinder 15 embedded in the coke oven riser pipe 1 on one side of the control box 6. A reset spring 16 is installed between the slide cylinder 15 and the plug 17. The support rod 14 is square and is embedded in the slide cylinder 15 in a sliding connection to provide a limiting function for the reset spring 16. After the water pressure in the coke oven riser pipe 1 decreases, the plug 17 will move forward with the action of the reset spring 16. When the reset spring 16 is completely in a state without external force, the plug 17 just completely seals the front and rear ends of the coke oven riser pipe 1.

[0034] Combined with appendix Figure 1-4 A drain pipe 18 is installed below the control box 6 to prevent liquid in the coke oven riser pipe 1 from flowing into the control box 6 through the gap in the slide cylinder 15, and to provide a drainage channel for it.

[0035] In order to avoid such accidents that could lead to water entering the control box 6, the screw 7, screw sleeve 9, pressure relief switch 11 and related electrical control equipment in the control box 6 are all made of waterproof and alkali-resistant materials, or are equipped with related protective measures.

[0036] Combined with appendix Figure 5-7The regulating box is equipped with a modulation component for setting the pressure relief parameter by changing the position of the pressure relief switch 11. The modulation component includes a screw 7 rotatably connected to the top of the regulating box 6. The end of the screw 7 extends outward to one side of the regulating box 6 and is connected to a handle 8. A screw sleeve 9 is threadedly connected to the screw 7. A limiting component for preventing the screw sleeve 9 from rotating is connected inside the regulating box 6. The limiting component includes a slide 13 installed inside the regulating box 6 and located on both sides of the support 10. Slide rods 12 that slide and are slidably connected to the slide 13 are connected on both sides of the support 10. A support 10 with the pressure relief switch 11 installed at the bottom is connected below the screw sleeve 9.

[0037] By holding the handle 8 on one side of the control box 6 and rotating the screw 7, under the limiting conditions provided by the sliding rod 12 and the sliding frame 13 for the screw sleeve 9, the support 10 carries the pressure relief switch 11 to move within the control box 6, thereby changing the distance between the support rod 14 and the pressure relief switch 11. Since the movement of the support rod 14 is related to the ammonia water pressure in the coke oven riser pipe 1 through the plug 17, the threshold for high-pressure ammonia water pressure relief of the regulating device can be set by manually setting the position of the support 10 in advance.

[0038] In a specific implementation of this utility model, ammonia water flows normally in the coke oven riser pipe 1, the high-pressure ammonia water pump 2 and the one-way valve 4 are in the normally open state, while the safety valve 5 is in the normally closed state.

[0039] During use, the highest pressure threshold of the high-pressure ammonia water in the coke oven riser pipe 1 can be set by turning the handle 8 and changing the position of the pressure relief switch 11 in the control box 6.

[0040] When the water pressure inside the coke oven riser pipe 1 changes, it causes the plug 17 inside the pipe to move. When the water pressure reaches the set threshold, the moving plug 17 will cause the end of the support to move and touch the pressure relief switch 11. The pressure relief system is triggered, and through the relevant electrical control system, the safety valve 5 on the overflow pipe 3 is activated. A portion of the water flow inside the coke oven riser pipe 1 is dispersed through the overflow pipe 3, thereby reducing the output water pressure at the rear end of the pipe. When the pressure returns to a bearable state, that is, below the set threshold, the support rod 14 moves forward with the plug 17 and releases the contact with the pressure relief switch 11, thereby closing the safety valve 5 and stopping the overflow pipe 3 from diverting the high-pressure ammonia water inside the coke oven riser pipe 1.

[0041] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-pressure ammonia water automatic pressure relief and regulation device, comprising a coke oven riser pipe (1) and a high-pressure ammonia water pump (2) installed on the coke oven riser pipe (1), characterized in that: The coke oven riser pipe (1) is bent to one side by installing a three-way pipe. A plug (17) is installed inside the three-way pipe. The liquid in the front end of the coke oven riser pipe (1) pushes the plug (17) according to the hydraulic pressure in the pipe. The liquid flows from the space made up by the plug (17) into the rear end of the coke oven riser pipe (1). A control box (6) is installed on the coke oven riser pipe (1). A touch switch is installed inside the control box (6). One end of the plunger (17) is connected to a support rod (14) that extends into the control box (6) and is used to trigger the pressure relief switch (11) by touch. One end of the control box (6) is embedded in the coke oven riser pipe (1) and is connected to a reset component that causes the plug (17) to return to its original position after the pipeline is depressurized; The control box (6) is equipped with a modulation component for setting the pressure relief parameter by changing the position of the pressure relief switch (11); The coke oven riser pipe (1) is located on one side of the area between the high-pressure ammonia pump (2) and the plunger (17), and is connected to an overflow pipe (3). A safety valve (5) associated with the pressure relief switch (11) is installed on the overflow pipe (3).

2. The high-pressure ammonia water automatic pressure relief and regulation device according to claim 1, characterized in that: The modulation assembly includes a screw (7) rotatably connected to the top of the control box (6), a handle (8) extending outward from one side of the control box (6) at the end of the screw (7), a screw sleeve (9) threadedly connected to the screw (7), a limiting assembly for preventing the screw sleeve (9) from rotating is connected inside the control box (6), and a support (10) with a pressure relief switch (11) installed at the bottom is connected below the screw sleeve (9).

3. The high-pressure ammonia water automatic pressure relief and regulation device according to claim 2, characterized in that: The limiting component includes a slide (13) installed inside the control box (6) and located on both sides of the support (10), and slide rods (12) that are slidably connected to the slide (13) are provided on both sides of the support (10).

4. The high-pressure ammonia water automatic pressure relief and regulation device according to claim 1, characterized in that: The reset assembly includes a square slide cylinder (15) embedded in the coke oven riser pipe (1) on one side of the control box (6). A reset spring (16) is installed between the slide cylinder (15) and the plug (17). The support rod (14) is square and is embedded in the slide cylinder (15) in a sliding connection to provide a limiting function for the reset spring (16).

5. The high-pressure ammonia water automatic pressure relief and regulation device according to claim 1, characterized in that: A drain pipe (18) is installed below the control box (6).

6. The high-pressure ammonia water automatic pressure relief and regulation device according to claim 1, characterized in that: A one-way valve (4) is installed on the overflow pipe (3) to prevent ammonia water in the overflow pipe (3) from flowing back into the coke oven riser pipe (1).

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