Liquid ammonia energy-saving gasification device of float glass ammonia decomposition hydrogen production system
By designing a liquid ammonia energy-saving gasification device in the ammonia decomposition hydrogen production system, and using steam pressure regulation and automatic adjustment systems, the problems of high energy consumption and reduced glass quality are solved, and the effects of reduced energy consumption and stable glass quality are achieved.
Patent Information
- Application Number
- CN202421514455.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Hydrogen stations have high energy consumption and are prone to reduce glass quality.
A floating glass ammonia decomposition hydrogen production system liquid ammonia energy-saving gasification device is designed, and the pressure reduction control is carried out through the steam pressure regulation pipeline to prevent the reverse infiltration of ammonia gas from steam, and the excess steam consumption is automatically adjusted according to the ammonia pressure through the automatic adjustment system, so that it can exchange heat with the liquid ammonia and convert it into a pressure-stable ammonia gas.
It effectively reduces the energy consumption of the hydrogen station, avoids the reverse infiltration of ammonia in steam, improves the gasification efficiency of ammonia, and ensures the stability of glass quality.
Smart Images
Figure CN222634330U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid ammonia energy-saving gasification devices, in particular to a liquid ammonia energy-saving gasification device for a float glass ammonia decomposition hydrogen production system. Background Art
[0002] At present, the float glass tin bath reduces hydrogen, mainly by ammonia decomposition. Ammonia decomposition requires the conversion of liquid ammonia into gaseous ammonia, but many processes use electric heating, resulting in high energy consumption of hydrogen stations. If steam is introduced into the ammonia decomposition system, there is a risk that steam will enter the liquid ammonia system, causing the hydrogen dew point to exceed the standard and affect the glass quality. Summary of the invention
[0003] The technical problem to be solved by the utility model is that the hydrogen station has high energy consumption and is easy to reduce the quality of glass.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a liquid ammonia energy-saving gasification device for a float glass ammonia decomposition hydrogen production system, including a liquid ammonia tank and an electric heating gasifier, the liquid ammonia tank is connected to a liquid ammonia output pipe, the liquid ammonia output pipe is connected to the electric heating gasifier through a heat exchange pipe, the heat exchange pipe is covered with an outer tube, the outer tube is connected to a steam input pipe and a steam output pipe, and the steam output pipe is connected to a condensate drain pipe.
[0005] Preferably, the heat exchange tube is connected to a heat exchanger, connecting flanges are provided at both ends of the heat exchanger, a heat exchange branch pipe is provided in the middle of the heat exchanger, the heat exchange branch pipe is evenly distributed along the axis of the heat exchanger, and the heat exchange branch pipe is connected to the heat exchange tube.
[0006] Preferably, a fixing ring is provided on the middle fixed sleeve of the heat exchanger, the fixing ring is connected to the outer heat exchange branch pipes, and the outer side wall of the fixing ring is fixedly connected to the inner wall of the outer tube.
[0007] Preferably, a pressure regulating pipeline is arranged in parallel on the steam input pipe, and the pressure regulating pipeline is provided with a pressure reducing valve, a pressure gauge and an automatic regulating valve in sequence along the steam conveying direction.
[0008] Preferably, the output pipeline of the electric heating gasifier is also connected to a pressure-boosting pipe, the pressure-boosting pipe is connected to the liquid ammonia tank, and the liquid ammonia tank is provided with a pressure transmitter.
[0009] Preferably, the condensate drain pipe is connected to the bottom end of the steam output pipe.
[0010] 1. The utility model provides a liquid ammonia energy-saving gasification device for a float glass ammonia decomposition hydrogen production system, which reduces the pressure of steam through a pressure regulating pipeline to make the steam pressure lower than the ammonia pressure, thereby preventing the steam from infiltrating into the ammonia gas in reverse, and then automatically adjusts the amount of surplus steam according to the ammonia pressure through an automatic regulating system, so that it exchanges heat with liquid ammonia, converts the liquid ammonia into ammonia gas with stable pressure, and the condensed steam is discharged through a steam discharge system.
[0011] 2. Use the heat exchange branch pipe in the heat exchanger for heat exchange. The heat exchanger is connected to the heat exchange pipe with flanges and sealing rings to increase the heat exchange area and thus improve the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0013] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.
[0014] In the figure: 1. Liquid ammonia tank; 2. Pressure transmitter; 3. Steam input pipe; 4. Liquid ammonia output pipe; 5. Heat exchange tube; 6. Outer tube; 7. Heat exchanger; 8. Fixed ring; 9. Electric heating vaporizer; 10. Condensate drain pipe; 11. Pressure reducing valve; 12. Pressure gauge; 13. Automatic regulating valve. DETAILED DESCRIPTION
[0015] like Figure 1 As shown, the utility model proposes a liquid ammonia energy-saving gasification device for a float glass ammonia decomposition hydrogen production system, comprising a liquid ammonia tank 1 and an electric heating gasifier 9, the liquid ammonia tank 1 is connected to a liquid ammonia output pipe 4, the liquid ammonia output pipe 4 is connected to the electric heating gasifier 9 through a heat exchange pipe 5, the heat exchange pipe 5 is covered with an outer tube 6, the outer tube 6 is connected to a steam input pipe 3 and a steam output pipe, and the steam output pipe is connected to a condensate drain pipe 10.
[0016] The heat exchange tube 5 is arranged in a continuous bending form to form a coil structure. The steam is transported to the outer tube 6 through the steam input pipe 3. The liquid ammonia tank 1 transports the liquid ammonia to the heat exchange tube 5 through the liquid ammonia output pipe 4. The heat exchange tube 5 and the steam in the outer tube 6 are heated, so that the liquid ammonia enters the electric heating vaporizer 9 after the temperature is increased, and is stably gasified to generate ammonia. The steam after heat exchange is discharged through the steam output pipe, and the water generated in the steam flows into the condensation drain pipe 10 at the bottom end of the steam output pipe and is discharged through the condensation drain pipe 10, thereby achieving the purpose of reusing surplus steam and reducing the energy consumption of hydrogen production.
[0017] like Figure 1 The heat exchanger 7 is connected to the heat exchange tube 5 , and connecting flanges are arranged at both ends of the heat exchanger 7 . A heat exchange branch pipe is arranged in the middle of the heat exchanger 7 . The heat exchange branch pipes are evenly distributed along the axis of the heat exchanger 7 , and the heat exchange branch pipes are connected to the heat exchange tube 5 .
[0018] The end of the heat exchanger 7 is connected to the heat exchange tube 5 through a flange, and heat exchange branches are evenly arranged in the middle of the heat exchanger 7. By increasing the heat exchange surface, the heat exchange efficiency is improved, and then the flow rate of liquid ammonia can be increased to increase the output. After passing through the heat exchanger 7, the liquid ammonia will be mixed again, which can further improve the uniformity of the liquid ammonia heating.
[0019] like Figure 1 As shown. A fixing ring 8 is fixedly mounted in the middle of the heat exchanger 7, the fixing ring 8 is connected to the outer heat exchange branch pipes, and the outer wall of the fixing ring 8 is fixedly connected to the inner wall of the outer package pipe 6. The fixing ring 8 is not only used to fix the heat exchanger 7 in the outer package pipe 6, but also can control the flow direction of the steam in the outer package pipe 6, so that the steam passes through the heat exchange branch pipe located in the middle of the heat exchanger 7, avoiding uneven heating of some heat exchange branch pipes.
[0020] like Figure 1 As shown. A pressure regulating pipeline is arranged in parallel on the steam input pipe 3, and a pressure reducing valve 11, a pressure gauge 12 and an automatic regulating valve 13 are sequentially arranged on the pressure regulating pipeline along the steam delivery direction. When the steam pressure is relatively high, the pressure reducing valve 11 and the automatic regulating valve 13 are controlled according to the display of the pressure gauge 12, so that the steam enters through the pressure regulating pipeline and the steam is depressurized. After the steam pressure is reduced, the steam is prevented from reversely penetrating into the ammonia gas, which affects the quality of the product.
[0021] like Figure 1 As shown, in order to ensure the stable output of liquid ammonia in the liquid ammonia tank 1. The output pipeline of the electric heating gasifier 9 is also connected to a pressure-boosting pipe, which is connected to the liquid ammonia tank 1. The liquid ammonia tank 1 is provided with a pressure transmitter 2. According to the pressure vertical provided by the pressure transmitter 2, ammonia is supplemented in the liquid ammonia tank 1 through the pressure-boosting pipe to ensure the stable pressure in the liquid ammonia tank 1, thereby maintaining the stable output of liquid ammonia.
[0022] like Figure 1 As shown, in order to separate the condensed water, the condensed water drain pipe 10 is connected to the bottom end of the steam output pipe. When the steam flows out from the outer tube 6, the condensed water drain pipe 10 is connected to the bottom end of the vertical section of the steam output pipe, and the condensed water flowing out with the steam enters the condensed water drain pipe 10 under the action of gravity, and is discharged after a certain volume of condensed water is stored in the condensed water drain pipe 10.
Claims
1. Liquid ammonia energy-saving gasification device for float glass ammonia decomposition hydrogen production system, characterized by: The invention comprises a liquid ammonia tank (1) and an electric heating vaporizer (9), wherein the liquid ammonia tank (1) is connected to a liquid ammonia output pipe (4), the liquid ammonia output pipe (4) is connected to the electric heating vaporizer (9) via a heat exchange pipe (5), the heat exchange pipe (5) is covered with an outer tube (6), the outer tube (6) is connected to a steam input pipe (3) and a steam output pipe, and the steam output pipe is connected to a condensate drain pipe (10).
2. The energy-saving liquid ammonia gasification device for the float glass ammonia decomposition hydrogen production system as claimed in claim 1, characterized in that: The heat exchange tube (5) is connected to a heat exchanger (7), connecting flanges are provided at both ends of the heat exchanger (7), a heat exchange branch pipe is provided in the middle of the heat exchanger (7), the heat exchange branch pipe is evenly distributed along the axis of the heat exchanger (7), and the heat exchange branch pipe is connected to the heat exchange tube (5).
3. The energy-saving liquid ammonia gasification device for the float glass ammonia decomposition hydrogen production system as claimed in claim 2, characterized in that: A fixing ring (8) is fixedly sleeved in the middle of the heat exchanger (7), the fixing ring (8) being connected to the outer heat exchange branch pipes, and the outer wall of the fixing ring (8) being fixedly connected to the inner wall of the outer covering pipe (6).
4. The energy-saving liquid ammonia gasification device for the float glass ammonia decomposition hydrogen production system as claimed in claim 1, characterized in that: A pressure regulating pipeline is arranged in parallel on the steam input pipe (3), and a pressure reducing valve (11), a pressure gauge (12) and an automatic regulating valve (13) are sequentially arranged on the pressure regulating pipeline along the steam conveying direction.
5. The energy-saving liquid ammonia gasification device for the float glass ammonia decomposition hydrogen production system as claimed in claim 1, characterized in that: The output pipeline of the electric heating gasifier (9) is also connected to a pressure-compensating pipe, which is connected to the liquid ammonia tank (1), and the liquid ammonia tank (1) is provided with a pressure transmitter (2).
6. The energy-saving liquid ammonia gasification device for the float glass ammonia decomposition hydrogen production system as claimed in claim 1, characterized in that: The condensate drain pipe (10) is connected to the bottom end of the steam output pipe.