Novel pressurizing chamber and using system thereof

Abstract

The invention relates to the field of coal synthesis ammonia production, and particularly provides a novel pressurizing chamber and a using system thereof.The novel pressurizing chamber comprises a shell, a pressurizing chamber water inlet pipe is arranged at the bottom of one side of the shell, and a pressurizing chamber water outlet pipe is arranged on the opposite side of the shell; the top of the shell is provided with a pressurized gas inlet pipe and a pressurizing chamber exhaust pipe, the inner wall of the shell is provided with a fixing rod, the bottom of the fixing rod is connected with a fixing plate, and the fixing plate is arranged at the lower parts of the pressurized gas inlet pipe and the pressurizing chamber exhaust pipe; a connecting rod I and a connecting rod III are movably connected to the fixing plate, an elastic connecting rod is arranged between the connecting rod I and the connecting rod III, a floating ball is fixed to one side of the connecting rod I, a movable rod is connected to one side of the connecting rod III, an air inlet head and an exhaust head are arranged at the top of the movable rod, and the mounting height of the air inlet head is larger than that of the exhaust head; the air inlet head extends into the pressurized air inlet pipe to block the pressurized air inlet pipe, and the exhaust head extends into the pressurizing chamber exhaust pipe to block the pressurizing chamber exhaust pipe. Compared with the prior art, the system can automatically recover condensate water, and is energy-saving, environment-friendly and low in operation cost.

Description

Technical Field

[0001] This invention relates to the field of coal-to-ammonia synthesis, specifically providing a novel pressurization chamber and its application system. Background Technology

[0002] In the energy-intensive and complex coal-to-ammonia synthesis system, condensate generation is a common and significant phenomenon. It primarily originates from the phase change cooling of steam during the process, such as condensate generated from equipment and pipeline insulation and heat tracing, condensate from the cooling and separation of high-temperature shift gas in the shift conversion process, condensate from steam turbine condensers, condensate from steam used for process heating, and condensate from steam pipeline networks. Recovering this high-quality condensate and reusing it in the production system is a crucial step in energy conservation, emission reduction, and cost reduction.

[0003] In traditional processes, a transfer pump is typically used to increase the pressure of the condensate before it is transported to the condensate treatment unit. This process involves a large investment in the transfer pump, requires a large installation area, consumes a significant amount of electricity and generates considerable noise during operation, and incurs high maintenance costs. Summary of the Invention

[0004] The present invention addresses the shortcomings of the prior art by providing a novel pressure chamber with strong practicality.

[0005] A further technical objective of this invention is to provide a novel pressurization chamber operating system that is rationally designed, safe, and applicable.

[0006] The technical solution adopted by this invention to solve its technical problem is: A novel pressurization chamber includes a shell, with a pressurization chamber inlet pipe at the bottom of one side of the shell and a pressurization chamber outlet pipe on the opposite side. The pressurization chamber inlet pipe is equipped with an inlet check valve, and the pressurization chamber outlet pipe is equipped with an outlet check valve. The top of the housing is provided with a pressurized gas inlet pipe and a pressurized chamber exhaust pipe. A fixing rod is provided on the inner wall of the housing. A fixing plate is connected to the bottom of the fixing rod. The fixing plate is located at the lower part of the pressurized gas inlet pipe and the pressurized chamber exhaust pipe. Connecting rod I and connecting rod III are movably connected to the fixed plate. An elastic connecting rod is provided between connecting rod I and connecting rod III. A float is fixed on one side of connecting rod I, and a movable rod is connected to one side of connecting rod III. An air inlet head and an exhaust head are provided at the top of the movable rod. The installation height of the air inlet head is higher than that of the exhaust head. The air inlet head extends into the pressurized gas inlet pipe to block the pressurized gas inlet pipe, and the exhaust head extends into the pressurized chamber exhaust pipe to block the pressurized chamber exhaust pipe.

[0007] Furthermore, the top of the movable rod is provided with a horizontal plate, and the horizontal plate is provided with an air inlet and an exhaust outlet.

[0008] Preferably, the elastic connecting rod is a spring.

[0009] A novel pressurized chamber system includes a pressurized chamber, wherein a pressurized chamber exhaust pipe at the top of the pressurized chamber is connected to a water chamber, a pressurized chamber inlet pipe is connected to the water chamber, and the water chamber is located at the top of the pressurized chamber; and a pressurized chamber outlet pipe is connected to a condensate treatment device. The inlet end of the water chamber is connected to the condensate inlet pipe, the drain pipe and the pressurization chamber exhaust pipe, and the other end of the condensate inlet pipe is connected to the production device. The water chamber outlet is connected to the pressurization chamber inlet pipe, water chamber exhaust pipe I, and water chamber exhaust pipe II; The condensate containing entrained gas separated in the water chamber and the gas discharged from the pressurization chamber through the pressurization chamber exhaust pipe pass through water chamber exhaust pipe II to water chamber exhaust pipe I and then are discharged into the trench.

[0010] Furthermore, the condensate inlet pipe is equipped with valve I, the drain pipe is equipped with valve II, the pressurization chamber exhaust pipe is equipped with valve V, the pressurization gas inlet pipe is equipped with valve IV, and the water chamber exhaust pipe II is equipped with valve III. During normal system operation, valves I, II, III, V, and IV are all in the open position; When the system is shut down, valves I, II, III, V, and IV are all closed.

[0011] Furthermore, a filter is provided on the water inlet pipe of the pressurization chamber, and the filter is Y-shaped.

[0012] Furthermore, a drain pipe is provided on the pressurized gas inlet pipe, and a drain valve is installed on the drain pipe.

[0013] Furthermore, a U-shaped liquid seal is provided on the water chamber exhaust pipe I, and the water chamber exhaust pipe II is connected to the water chamber exhaust pipe I after the U-shaped liquid seal.

[0014] Compared with the prior art, the novel pressurization chamber and its application system of the present invention have the following outstanding advantages: This invention does not use transfer pumps, motors, or electric drives; instead, it uses steam or compressed air as power to automatically recover condensate, making it energy-saving and environmentally friendly. The pressurization chamber in this invention is small in size and can be distributed or centrally installed along a wall or in a pit, resulting in minimal civil engineering work, simple construction, convenient installation, and easy maintenance.

[0015] The entire conveying process can be automatically controlled and operated without the need for additional instrumentation and control systems, enabling unattended operation and supervision. Furthermore, it operates without noise or vibration, exhibits stable and reliable performance, and has low operating costs, resulting in excellent economic benefits. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a novel pressurization chamber in its water inlet state. Figure 2 This is a schematic diagram of a novel pressurized chamber drainage structure. Figure 3 A schematic diagram of the structure of a new type of pressurized chamber system; The markings in the attached diagram represent: 1. Production unit; 2. Water chamber; 3. Pressurization chamber; 4. Condensate treatment unit; 5. Condensate inlet pipe; 6. Pressurization chamber inlet pipe; 7. Pressurization chamber exhaust pipe; 8. Pressurized gas inlet pipe; 9. Pressurization chamber outlet pipe; 10. Water chamber exhaust pipe I; 11. Water chamber exhaust pipe II; 12. Steam trap; 13. Valve I; 14. Filter; 15. Inlet check valve; 16. Outlet check valve; 17. Valve II; 18. Valve III; 19. Valve IV; 20. Valve V; 21. Steam trap; 22. Ditch; 23. U-shaped liquid seal. 3.1 Float, 3.2 Connecting rod I, 3.3 Connecting rod II, 3.4 Elastic connecting rod, 3.5 Fixed plate, 3.6 Fixed rod, 3.7 Movable rod, 3.8 Exhaust head, 3.9 Air inlet head, 3.10 Horizontal plate, 3.11 Connecting rod III, 3.12 Housing. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The following is a preferred embodiment: like Figure 1-2 As shown, a novel pressurization chamber in this embodiment includes a housing 3.12. In this embodiment, a pressurization chamber water inlet pipe 6 is provided on the bottom left side of the housing 3.12, and a pressurization chamber water outlet pipe 9 is provided on the right side. An inlet check valve 15 is provided on the pressurization chamber water inlet pipe 6, and an outlet check valve 16 is provided on the pressurization chamber water outlet pipe 9. The top of the housing 3.12 is provided with a pressurized gas inlet pipe 8 and a pressurized chamber exhaust pipe 7. A fixing rod 3.6 is provided on the inner wall of the housing 3.12. A fixing plate 3.5 is connected to the bottom of the fixing rod 3.6. The fixing plate 3.5 is located directly below the pressurized gas inlet pipe 8 and the pressurized chamber exhaust pipe 7.

[0020] Connecting rod I 3.2 and connecting rod III 3.11 are movably connected to the fixed plate 3.5. A spring 3.4 is provided between connecting rod I 3.2 and connecting rod III 3.11. A float ball 3.1 is fixed to the other end of connecting rod I 3.2. A movable rod 3.7 is welded to the other end of connecting rod III 3.11. A horizontal plate 3.10 is fixed to the top of the movable rod 3.7. An air inlet head 3.9 and an exhaust head 3.8 are provided on the horizontal plate 3.10. The installation height of the air inlet head is higher than the installation height of the exhaust head.

[0021] The air inlet head 3.9 extends into the pressurized gas inlet pipe 8 to block the pressurized gas inlet pipe 8, and the exhaust head 3.8 extends into the pressurized chamber exhaust pipe 7 to block the pressurized chamber exhaust pipe 7.

[0022] like Figure 3 As shown, the pressurization chamber 3 is applied to the pressurization chamber usage system. The pressurization chamber exhaust pipe 7 at the top of the pressurization chamber 3 is connected to the water chamber 2, the pressurization chamber inlet pipe 6 is connected to the water chamber 2, and the water chamber 2 is located at the top of the pressurization chamber 3. The pressurization chamber outlet pipe 9 is connected to the condensate treatment device 4.

[0023] The inlet end of water chamber 2 is connected to condensate inlet pipe 5, drain pipe 21 and pressurization chamber exhaust pipe 7, and the other end of condensate inlet pipe 5 is connected to production device 1; The outlet end of water chamber 2 is connected to the pressurization chamber inlet pipe 6, water chamber exhaust pipe I 10 and water chamber exhaust pipe II 11; The gas entrained in the condensate separated in water chamber 2 and the gas discharged from pressurized chamber 3 through pressurized chamber exhaust pipe 7 are discharged into the drainage ditch 22 through water chamber exhaust pipe II 11 to water chamber exhaust pipe I 10.

[0024] Among them, valve I13 is installed on condensate inlet pipe 5, valve II17 is installed on drain pipe 21, valve V20 is installed on pressurized chamber exhaust pipe 7, valve IV19 is installed on pressurized gas inlet pipe 8, and valve III18 is installed on water chamber exhaust pipe II11. When the system is running normally, valves I13, II17, III18, V20 and IV19 are all in the open position; When the system is shut down, valves I13, II17, III18, V20 and IV19 are all in the closed state.

[0025] The pressurization chamber inlet pipe 6 is also equipped with a filter 14, which is Y-shaped in this embodiment.

[0026] A drain pipe 21 is provided on the pressurized gas inlet pipe 8, and a drain valve 12 is installed on the drain pipe 21.

[0027] A U-shaped liquid seal 23 is installed on the water chamber exhaust pipe I10, and the water chamber exhaust pipe II11 is connected to the water chamber exhaust pipe I11 after the U-shaped liquid seal 23.

[0028] The pressurization chamber 3 operates in two phases: water inlet and air outlet. Initially, the water inlet check valve 15 is open, while the water outlet check valve 16 is closed due to high back pressure. Water initially enters the valves, and the air outlet head 3.8 is separated from the air outlet pipe 7. Gas inside the pressurization chamber 3 is discharged through the pressurization chamber air outlet pipe 7. At this time, the float 3.1 is at a low position. As the water level rises, the float 3.1 rises continuously. When the float 3.1 reaches its highest point, the moving rod 3.7 moves upward, and the air outlet head 3.8 moves upward and seals with the opening of the pressurization chamber air outlet pipe 7, closing the air outlet pipe. Simultaneously, as the air inlet head 3.9 moves upward, it separates from the pressurized air inlet pipe 8, opening the air inlet pipe.

[0029] Second, air intake and drainage: When the float 3.1 is at its highest point, the exhaust head 3.8 is sealed to the outlet of the pressurized chamber exhaust pipe 7, the exhaust pipe is closed, and the air intake head 3.9 moves upward and separates from the pressurized gas inlet pipe 8, opening the air intake pipe. At this time, pressurized gas enters the pressurized chamber 3 through the pressurized gas inlet pipe 8, pushing the condensate in the pressurized chamber 3 towards the high-pressure zone under the pressure of the pressurized gas. At this time, the inlet check valve 15 cannot accept water due to the high pressure inside the valve, and the condensate is discharged through the outlet check valve 16. When the float 3.1 reaches its lowest position, the moving rod 3.7 falls back, the exhaust head 3.8 returns to the separated state from the exhaust pipe 7, and the air intake head 3.9 returns to the sealed state from the pressurized gas inlet pipe 8. The pressurized gas is shut off and no longer enters the pressurized chamber 2, and the gas in the pressurized chamber 2 begins to be discharged, entering the next cycle.

[0030] The float 3.1 is installed on the fixed plate 3.5 via connecting rod I 3.2, connecting rod II 3.3, elastic connecting rod 3.4, and connecting rod III 3.11. The elastic connecting rod 3.4 adopts a spring structure and can extend and retract freely. After installation, connecting rod II 3.3, connecting rod III 3.11, and elastic connecting rod 3.4 must be able to move freely.

[0031] The outlet of production unit 1 is connected to condensate inlet pipe 5. Condensate generated during the coal-to-ammonia synthesis process is transported to water chamber 2 through condensate inlet pipe 5, where steam and water are separated and stored.

[0032] The inlet of water chamber 2 is connected to condensate inlet pipe 5, drain pipe 21, and pressurized chamber exhaust pipe 7, while the outlet is connected to pressurized chamber inlet pipe 6, water chamber exhaust pipe I 10, and water chamber exhaust pipe II 11. Condensate generated during ammonia synthesis is transported to water chamber 2 through condensate inlet pipe 5, where it undergoes steam-water separation and is stored. Then, under gravity, the condensate enters pressurized chamber 3 through pressurized chamber inlet pipe 6. The condensate continuously accumulates in pressurized chamber 3, causing the liquid level to rise. When the liquid level in pressurized chamber 3 reaches its highest point, the air inlet of pressurized chamber 3 opens, and the exhaust port closes. Pressurized gas enters pressurized chamber 3 through pressurized gas inlet pipe 8, continuously increasing the pressure within the chamber. Under the action of the pressurized gas, the condensate is discharged from pressurized chamber through pressurized chamber outlet pipe 9 and transported to condensate treatment device 4 for further purification and recycling. As the liquid in pressurization chamber 3 is discharged, when the liquid level in pressurization chamber 3 reaches its lowest point, the air inlet of pressurization chamber 3 closes and the exhaust port opens, preventing pressurized gas from entering pressurization chamber 3 again. Simultaneously, the remaining gas in pressurization chamber 3 is discharged through pressurization chamber exhaust pipe 7 and enters water chamber 2. As the pressure in pressurization chamber 3 decreases, the condensate in water chamber 2, under the influence of gravity, enters pressurization chamber 3 through pressurization chamber inlet pipe 6, beginning the next working cycle.

[0033] The gas entrained in the condensate separated in water chamber 2 and the gas discharged from pressurization chamber 3 through pressurization chamber exhaust pipe 7 are discharged into the trench 10 through water chamber exhaust pipe 11.

[0034] When the equipment is running normally, all five valves are open and do not require adjustment; when the equipment is shut down, all valves are closed, isolating it from the production equipment.

[0035] The Y-type filter 14 can effectively filter impurities in the condensate, preventing impurities from clogging pipes, valves, etc., and protecting the stable operation of the device.

[0036] An inlet check valve 15 and an outlet check valve 16 are installed on the inlet pipe 6 and outlet pipe 9 of the pressurization chamber, respectively, to ensure that the condensate can only flow in the forward direction and avoid backflow.

[0037] A drain pipe 21 is installed on the pressurized gas inlet pipe 8, and a drain valve 12 is installed on the drain pipe 21. The pressurized gas can be compressed air or steam. Whether it is compressed air or steam, condensate is easily generated during pipeline transportation. This part of the condensate is automatically discharged into the water chamber 2 through the drain valve 12 and the drain pipe 21, and is recycled together with the condensate generated by the device.

[0038] A U-shaped liquid seal 23 is installed on the water chamber vent pipe I 10; the water chamber vent pipe II 11 connects to the water chamber vent pipe I 10 after the U-shaped liquid seal 23. During the condensate delivery process, gas in the pressurization chamber 3 is periodically discharged into the water chamber 2, causing pressure fluctuations within the water chamber 2. The purpose of the U-shaped liquid seal 23 is to create a liquid seal using the liquid height within the U-shaped tube. When the pressure within the water chamber 2 changes, the height difference of the liquid column in the U-shaped liquid seal 23 effectively prevents external gas from backflowing into the water chamber 2, ensuring unidirectional gas flow within the water chamber 2. Simultaneously, when the pressure within the water chamber 2 changes, the height of the liquid column in the U-shaped liquid seal 23 also changes accordingly, thereby maintaining pressure stability within the water chamber 2.

[0039] The water chamber 2 is installed at a higher height than the pressurization chamber 3. The condensate in the water chamber 2 flows into the pressurization chamber 3 by gravity, eliminating the need for an additional power unit and saving costs.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A novel pressurization chamber, comprising a shell, characterized in that, The bottom of one side of the housing is provided with a pressurized chamber water inlet pipe and the opposite side is provided with a pressurized chamber water outlet pipe. The pressurized chamber water inlet pipe is provided with an inlet check valve and the pressurized chamber water outlet pipe is provided with an outlet check valve. The top of the housing is provided with a pressurized gas inlet pipe and a pressurized chamber exhaust pipe. A fixing rod is provided on the inner wall of the housing. A fixing plate is connected to the bottom of the fixing rod. The fixing plate is located at the lower part of the pressurized gas inlet pipe and the pressurized chamber exhaust pipe. Connecting rod I and connecting rod III are movably connected to the fixed plate. An elastic connecting rod is provided between connecting rod I and connecting rod III. A float is fixed on one side of connecting rod I, and a movable rod is connected to one side of connecting rod III. An air inlet head and an exhaust head are provided at the top of the movable rod. The installation height of the air inlet head is higher than that of the exhaust head. The air inlet head extends into the pressurized gas inlet pipe to block the pressurized gas inlet pipe, and the exhaust head extends into the pressurized chamber exhaust pipe to block the pressurized chamber exhaust pipe.

2. The novel pressurization chamber according to claim 1, characterized in that, The top of the movable rod is provided with a horizontal plate, and the horizontal plate is provided with an air inlet and an exhaust outlet.

3. The novel pressurization chamber according to claim 1, characterized in that, The elastic connecting rod is a spring.

4. A novel pressurized chamber operating system, characterized in that, Includes the pressurization chamber described in any of claims 1-3, wherein the pressurization chamber exhaust pipe at the upper part of the pressurization chamber is connected to the water chamber, the pressurization chamber inlet pipe is connected to the water chamber, and the water chamber is located at the upper part of the pressurization chamber, and the pressurization chamber outlet pipe is connected to a condensate treatment device; The inlet end of the water chamber is connected to the condensate inlet pipe, the drain pipe and the pressurization chamber exhaust pipe, and the other end of the condensate inlet pipe is connected to the production device. The water chamber outlet is connected to the pressurization chamber inlet pipe, water chamber exhaust pipe I, and water chamber exhaust pipe II; The condensate containing entrained gas separated in the water chamber and the gas discharged from the pressurization chamber through the pressurization chamber exhaust pipe pass through water chamber exhaust pipe II to water chamber exhaust pipe I and then are discharged into the trench.

5. A novel pressurization chamber operating system according to claim 4, characterized in that, The condensate inlet pipe is equipped with valve I, the drain pipe is equipped with valve II, the pressurization chamber exhaust pipe is equipped with valve V, the pressurization gas inlet pipe is equipped with valve IV, and the water chamber exhaust pipe II is equipped with valve III. During normal system operation, valves I, II, III, V, and IV are all in the open position; When the system is shut down, valves I, II, III, V, and IV are all closed.

6. A novel pressurized chamber operating system according to claim 5, characterized in that, The pressurization chamber inlet pipe is equipped with a filter, which is Y-shaped.

7. A novel pressurized chamber operating system according to claim 4, characterized in that, The pressurized gas inlet pipe is equipped with a drain pipe, and a drain valve is installed on the drain pipe.

8. A novel pressurized chamber operating system according to claim 4, characterized in that, A U-shaped liquid seal is provided on the water chamber exhaust pipe I, and the water chamber exhaust pipe II is connected to the water chamber exhaust pipe I after the U-shaped liquid seal.

Images