Efficient vaporizer for hydrogen production through ammonia decomposition
通过设计一种包括减压器和缓冲罐的氨分解制氢用高效汽化器,解决了现有液氨汽化设备独立和手调式导致的扩产、减产困难和汽化效率降低的问题,实现了灵活的 Equipment configuration and efficient ammonia vaporization.
Patent Information
- Application Number
- CN202421299624.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-07
AI Technical Summary
In the existing ammonia decomposition hydrogen production process, the liquid ammonia vaporization equipment is independent and manual adjustment, resulting in design and construction during production expansion and reduction, and long-term operation leads to a decrease in vaporization efficiency.
Design a high-efficiency vaporizer for hydrogen production for ammonia decomposition, including a first pressure reducer, a second pressure reducer and a buffer tank. Through the combined structure of the vaporizer body, the exhaust main pipe and the liquid inlet main pipe, flexible addition and removal are achieved, and The air pressure is adjusted by a second pressure reducer to improve the vaporization efficiency.
The vaporizer structure facilitates the addition and dismantling of production expansion, production reduction, improves the vaporization efficiency of liquid ammonia and reduces production costs.
Smart Images
Figure CN222437650U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen energy production, in particular to a high-efficiency vaporizer for producing hydrogen by decomposing ammonia. Background Art
[0002] Ammonia decomposition to produce hydrogen is a method of industrial hydrogen production through chemical means. The raw material for ammonia decomposition to produce hydrogen is ammonia gas. In order to better store and transport ammonia, it is usually carried out in the form of liquid ammonia. The liquid ammonia needs to be vaporized before the ammonia decomposition to produce hydrogen process.
[0003] At present, the vaporization of liquid ammonia is achieved through conventional vaporization skids. However, conventional vaporization skids still have the following shortcomings:
[0004] 1. The gasification skid is an independent device and needs to be designed and constructed separately when expanding or reducing production;
[0005] 2. The gasification skid is connected in series with a two-stage manually adjustable pressure reducing valve. Long-term operation will lead to reduced gasification efficiency. Utility Model Content
[0006] In order to solve the technical problems existing in the background technology, the utility model provides a high-efficiency vaporizer for hydrogen production by decomposing ammonia, which is convenient for installation and removal during expansion and reduction of production and improves vaporization efficiency.
[0007] The technical solution adopted by the utility model is:
[0008] A high-efficiency vaporizer for producing hydrogen by decomposing ammonia, comprising:
[0009] A first pressure reducer and a second pressure reducer are sequentially connected to the liquid ammonia supply side, the outlet of the second pressure reducer is connected with a liquid inlet main pipe, and a plurality of liquid inlet main pipes are sequentially connected, the liquid inlet main pipe is connected with a vaporizer body, the outlet of the vaporizer body is connected with an exhaust main pipe, and a plurality of exhaust main pipes are sequentially connected.
[0010] Furthermore, a buffer tank is provided between the first pressure reducer and the second pressure reducer.
[0011] Furthermore, a sewage outlet is provided at the center of the lower end of the buffer tank, and a relief port, an on-site pressure gauge, and a pressure guide port are provided at the upper end of the buffer tank, and the relief port is provided at the center of the upper end of the buffer tank.
[0012] Furthermore, an exhaust connecting pipe is connected to the exhaust main pipe, and the exhaust connecting pipe is used to communicate with the carburetor body.
[0013] Furthermore, a liquid inlet connecting pipe is provided on the liquid inlet main pipe, and the liquid inlet connecting pipe and the exhaust connecting pipe are used to be connected with the vaporizer body.
[0014] Furthermore, the carburetor body, the exhaust manifold, and the liquid inlet manifold are arranged in the same number.
[0015] Furthermore, the exhaust manifold and the liquid inlet manifold have the same structure;
[0016] The exhaust connecting pipe and the liquid inlet connecting pipe have the same structure, and the position of the exhaust connecting pipe on the exhaust main pipe is the same as the position of the liquid inlet connecting pipe on the liquid inlet main pipe;
[0017] Used to improve versatility and reduce production costs.
[0018] Furthermore, an exhaust blind plate is sealed and arranged at the exhaust main pipe far away from the second pressure reducer.
[0019] Furthermore, the liquid inlet main pipe far away from the second pressure reducer is connected to the ammonia storage tank;
[0020] An air inlet blind plate is sealed and arranged at the liquid inlet main pipe close to the second pressure reducer, and a sampling port is arranged on the air inlet blind plate.
[0021] Furthermore, the execution components of the first pressure reducer are respectively connected to the pressure conducting port and the sampling port.
[0022] The advantages of the utility model of a high-efficiency vaporizer for hydrogen production by decomposing ammonia are:
[0023] 1. The combined structure of the carburetor body, exhaust manifold and liquid inlet manifold facilitates the installation and removal during expansion or reduction of production;
[0024] 2. The second pressure reducer is adjusted by the gas production pressure to improve the vaporization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the specific implementation of the utility model, the drawings required in the specific implementation are briefly introduced below. The drawings in the following description are implementations of the utility model.
[0026] Figure 1 This is a general three-dimensional schematic diagram of a high-efficiency vaporizer for producing hydrogen by decomposing ammonia provided by the utility model example;
[0027] Figure 2 This utility model example Figure 1 An enlarged three-dimensional schematic diagram of part A;
[0028] Figure 3 The utility model provides a general front view schematic diagram of a high-efficiency vaporizer for producing hydrogen by decomposing ammonia.
[0029] In the figure:
[0030] 11. The first pressure reducer, 12. The second pressure reducer,
[0031] 2. Buffer tank,
[0032] 21. Sewage outlet, 22. Release outlet, 23. Local pressure gauge, 24. Pressure guide port,
[0033] 3. Carburetor body,
[0034] 41. Exhaust main pipe, 42. Exhaust connecting pipe,
[0035] 51. Liquid inlet main pipe, 52. Liquid inlet connecting pipe. DETAILED DESCRIPTION
[0036] In order to more clearly and explicitly illustrate the specific implementation purpose and implementation method of the utility model, the technical solution of the utility model will be fully described below. The described embodiment is a part of the embodiment of the utility model, not all the embodiments. Without making creative work, all other embodiments based on the embodiment described in the utility model belong to the protection scope of the utility model.
[0037] The utility model discloses a high-efficiency vaporizer for producing hydrogen by decomposing ammonia. Figure 1 , Figure 2 , Figure 3 As shown, including:
[0038] The first pressure reducer 11 and the second pressure reducer 12 are sequentially connected to the liquid ammonia supply side, and a buffer tank 2 is connected between the first pressure reducer 11 and the second pressure reducer 12. A sewage outlet 21 is provided at the center of the lower end of the buffer tank 2, and a relief port 22, an on-site pressure gauge 23, and a pressure guide port 24 are provided at the upper end of the buffer tank 2. The relief port 22 is provided at the center of the upper end of the buffer tank 2.
[0039] The outlet of the second pressure reducer 12 is connected with a liquid inlet main pipe 51, and a plurality of liquid inlet main pipes 51 are connected in sequence. The liquid inlet main pipe 51 is connected with a liquid inlet connecting pipe 52, and the liquid inlet connecting pipe 52 is connected with a vaporizer body 3. The outlet of the vaporizer body 3 is connected with an exhaust main pipe 41, and a plurality of exhaust main pipes 41 are connected in sequence. The exhaust main pipe 41 is connected with an exhaust connecting pipe 42, and the exhaust connecting pipe 42 is used to communicate with the vaporizer body 3.
[0040] In order to reduce production costs and improve versatility, the exhaust manifold 41 and the liquid inlet manifold 51 have the same structure; the exhaust connecting pipe 42 and the liquid inlet connecting pipe 52 have the same structure, and the position of the exhaust connecting pipe 42 on the exhaust manifold 41 is the same as the position of the liquid inlet connecting pipe 52 on the liquid inlet manifold 51.
[0041] The carburetor body 3, the exhaust manifold 41, and the liquid inlet manifold 51 are interconnected to form an integral module, and multiple groups are arranged in parallel.
[0042] An exhaust blind plate is sealed at the exhaust main pipe 41 away from the second pressure reducer 12; the liquid inlet main pipe 51 away from the second pressure reducer 12 is connected to the ammonia storage tank; an air intake blind plate is sealed at the liquid inlet main pipe 51 close to the second pressure reducer 12, and a sampling port is provided on the air intake blind plate, and the actuator of the first pressure reducer 11 is respectively connected to the pressure guide port 24 and the sampling port.
[0043] Based on the above, the embodiment of the utility model of a high-efficiency vaporizer for hydrogen production by decomposing ammonia is used as inspiration. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A high-efficiency vaporizer for hydrogen production by decomposing ammonia, characterized in that: include: A first pressure reducer (11) and a second pressure reducer (12) are sequentially connected to the liquid ammonia supply side; the outlet of the second pressure reducer (12) is connected to a liquid inlet main pipe (51); a plurality of liquid inlet main pipes (51) are sequentially connected; the liquid inlet main pipe (51) is connected to a vaporizer body (3); the outlet of the vaporizer body (3) is connected to an exhaust main pipe (41); a plurality of exhaust main pipes (41) are sequentially connected.
2. The high-efficiency vaporizer for producing hydrogen by decomposing ammonia according to claim 1, characterized in that: A buffer tank (2) is provided between the first pressure reducer (11) and the second pressure reducer (12).
3. The high-efficiency vaporizer for producing hydrogen by decomposing ammonia according to claim 2, characterized in that: A sewage outlet (21) is arranged at the center of the lower end of the buffer tank (2), and a relief outlet (22), an on-site pressure gauge (23), and a pressure guide port (24) are arranged at the upper end of the buffer tank (2), wherein the relief outlet (22) is arranged at the center of the upper end of the buffer tank (2).
4. The high-efficiency vaporizer for hydrogen production by decomposing ammonia according to claim 3, characterized in that: The exhaust main pipe (41) is connected to an exhaust connecting pipe (42), and the exhaust connecting pipe (42) is used to communicate with the carburetor body (3).
5. The high-efficiency vaporizer for producing hydrogen by decomposing ammonia according to claim 4, characterized in that: The liquid inlet main pipe (51) is connected to a liquid inlet connecting pipe (52), and the liquid inlet connecting pipe (52) and the exhaust connecting pipe (42) are used to communicate with the carburetor body (3).
6. The high-efficiency vaporizer for producing hydrogen by decomposing ammonia according to claim 5, characterized in that: The carburetor body (3), the exhaust manifold (41), and the liquid inlet manifold (51) are provided in the same number.
7. The high-efficiency vaporizer for producing hydrogen by decomposing ammonia according to claim 5, characterized in that: The exhaust manifold (41) and the liquid inlet manifold (51) have the same structure; The exhaust connecting pipe (42) and the liquid inlet connecting pipe (52) have the same structure, and the position of the exhaust connecting pipe (42) on the exhaust main pipe (41) is the same as the position of the liquid inlet connecting pipe (52) on the liquid inlet main pipe (51); Used to improve versatility and reduce production costs.
8. The high-efficiency vaporizer for producing hydrogen by decomposing ammonia according to claim 3, characterized in that: An exhaust blind plate is sealed and arranged at the exhaust main pipe (41) away from the second pressure reducer (12).
9. The high-efficiency vaporizer for producing hydrogen by decomposing ammonia according to claim 3, characterized in that: A liquid inlet main pipe (51) far away from the second pressure reducer (12) is connected to the ammonia storage tank; An air intake blind plate is sealed and arranged at the liquid intake main pipe (51) close to the second pressure reducer (12), and a sampling port is arranged on the air intake blind plate.
10. The high-efficiency vaporizer for producing hydrogen by decomposing ammonia according to claim 9, characterized in that: The execution components of the first pressure reducer (11) are respectively connected to the pressure guide port (24) and the sampling port.