Low-temperature liquefied gas water bath vaporizer
By designing the inner and outer cylinder structure and the spiral vaporization tube, the problem of low vaporization efficiency and poor safety of liquefied gas in traditional vaporizers under low temperature conditions is solved, achieving uniform heating and stable gas supply, and reducing energy consumption and failure risk.
Patent Information
- Application Number
- CN202520118718.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-19
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-19
AI Technical Summary
Existing vaporizers have low vaporization efficiency and pose safety hazards in low-temperature environments. Traditional water bath vaporizers suffer from poor coolant circulation, leading to uneven vaporization. Electric heating vaporizers have high energy consumption and pose a risk of electrical failure.
The cryogenic liquefied gas water bath vaporizer adopts an inner and outer cylinder structure. A vaporization chamber is formed between the inner and outer cylinders. Coolant enters the vaporization chamber through the side wall of the inner cylinder. The vaporization tube is spirally set in the placement tank to ensure uniform circulation of coolant and improve heat exchange efficiency.
Achieving uniform heating and stable gas supply for liquefied petroleum gas in low-temperature environments improves vaporization efficiency, reduces energy consumption, minimizes the risk of component icing, and enhances safety.
Smart Images
Figure CN223952702U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of vaporizer, especially relates to a low-temperature liquefied gas water bath vaporizer. BACKGROUND
[0002] At present, low-temperature liquefied gas (such as liquid natural gas, liquid hydrogen gas and the like, hereinafter referred to as liquefied gas) is becoming the first choice of more and more car owners as clean and low-cost fuel, but in actual use, the liquefied gas needs to be heated to convert it into gaseous gas for use by the engine.
[0003] Therefore, a vaporizer needs to be installed between the liquefied gas storage device (referred to as liquid tank) and the engine, and the vaporizer generally adopts a water bath vaporizer. The heat energy required for heating the liquefied gas by the water bath vaporizer is provided by the cooling liquid (or other heat-conducting liquid) flowing through the engine. The cooling liquid affected by the high temperature of the engine flows into the vaporizer to heat and vaporize the liquefied gas entering the vaporization pipe from the liquid tank, and then supplies the engine. The cooling liquid is cooled by the endothermic process of liquefied gas vaporization and returns to the engine cooling system to cool the engine. The cooling liquid is heated again to flow into the vaporizer, forming a cycle.
[0004] However, in actual application, the phenomenon of icing of the gas supply pipeline and related components often occurs due to slow heating of the liquefied gas by the cooling liquid, which is particularly obvious in cold winter. This not only increases the probability of damage to parts, but also causes difficulty in starting the engine and reduces the performance of the engine during use, and also increases the gas consumption of the vehicle.
[0005] The traditional water bath vaporizer is provided with a cooling liquid inlet and an air inlet at one end of the cylinder body, and a cooling liquid outlet and an air outlet at the other end of the cylinder body. The cooling liquid flows straight from one end to the other end. This structure causes most of the cooling liquid to flow straight from the inlet to the outlet. The cooling liquid in the inner part of the cylinder body, especially the cooling liquid in the corners and side walls of the cylinder body, cannot participate in the cycle. This is exactly where the vaporizer coil is located. The poor circulation of the cooling liquid results in a too low temperature, which ultimately leads to uneven heating of the liquefied gas in the vaporization pipe and poor vaporization effect, and the phenomenon of icing of the gas supply (generally referring to fuel gas) pipeline and related components.
[0006] The electric heating type water bath vaporizer is an electric heating device added to the liquefied gas pipeline based on the above structure. The heating electricity is generated by the vehicle. Continuous heating of the water bath vaporizer during vehicle operation increases the energy consumption of the vehicle, increases the operating cost of the vehicle owner, and electric heating belongs to electrical products, which is prone to electrical faults, resulting in failure of the liquefied gas to be vaporized after heating. The use of the electric heating type increases the safety hazard, and may cause combustion and explosion when the liquefied gas leaks.
[0007] The above two methods cannot fundamentally solve the low efficiency of liquefied gas vaporization, and have various risks, and an efficient, safe, reliable and low-cost vaporization device is urgently needed.
[0008] Therefore, in view of the above-mentioned problems in actual production and implementation, a low-temperature liquefied gas water bath vaporizer is provided to solve the above technical problems. Invention content
[0009] The utility model provides a low-temperature liquefied gas water bath vaporizer, which solves the problems in the prior art.
[0010] The technical scheme of the utility model is as follows: a low-temperature liquefied gas water bath vaporizer includes an inner cylinder and an outer cylinder, a space is left between the inner cylinder and the outer cylinder to form a vaporization cavity, the vaporization cavity is closed at both ends, the inner cylinder and the outer cylinder are in communication with the vaporization cavity, the inner cylinder and the outer cylinder are respectively provided with an air inlet and an air outlet at both ends, a vaporization pipe is installed in the vaporization cavity, and the air inlet and the air outlet are respectively two ports of the vaporization pipe.
[0011] The inner cylinder and the outer cylinder are provided with a cooling liquid inlet and a cooling liquid outlet, the cooling liquid enters the inner cylinder through the cooling liquid inlet, passes through the side wall of the inner cylinder to enter the vaporization cavity, and finally flows out through the cooling liquid outlet.
[0012] The inner cylinder and the outer cylinder are respectively provided with a first sealing plate and a second sealing plate on both sides, the vaporization cavity is closed at both ends through the first sealing plate and the second sealing plate, and the two ports of the vaporization pipe pass through the first sealing plate and the second sealing plate respectively.
[0013] As a preferred technical scheme, the first sealing plate is arranged close to the air outlet, and the second sealing plate is arranged close to the air inlet.
[0014] As a preferred technical scheme, the inner cylinder wall is provided with a through hole, and the vaporization cavity is in communication with the inside of the inner cylinder through the through hole.
[0015] As a preferred technical scheme, the through hole is located at the position close to the first sealing plate on the side wall of the inner cylinder.
[0016] As a preferred technical scheme, the outer wall of the inner cylinder is provided with a positioning strip, the positioning strip is arranged around the outer wall of the inner cylinder, the positioning strip and the outer wall of the inner cylinder form a placing groove, and the vaporization pipe is installed in the placing groove.
[0017] As a preferred technical scheme, the positioning strip is in a spiral shape, and the vaporization pipe and the placing groove are matched in shape.
[0018] As a preferred technical scheme, the height of the positioning strip is greater than the diameter of the vaporization pipe.
[0019] As a preferred technical scheme, the cooling liquid inlet is arranged on the second sealing plate and is communicated with the inside of the inner cylinder; and the cooling liquid outlet is arranged on the side wall of the outer cylinder and is communicated with the gasification cavity.
[0020] As a preferred technical scheme, the cooling liquid outlet is arranged on the side wall of the outer cylinder close to the second sealing plate
[0021] After the above technical scheme is adopted, the utility model has the beneficial effects that: the utility model discloses can control the flow direction of cooling liquid in the water bath vaporizer through the inner cylinder and the positioning strip spirally arranged, improves the circulation effect of cooling liquid, and overcomes the problem that part of cooling liquid cannot participate in circulation in traditional technology;The spiral coil part of the gasification pipe is arranged in the approximately closed or completely closed space formed by the placing groove, the outer cylinder and the inner cylinder, so that the liquefied gas in the gasification pipe is uniformly heated, the heat exchange efficiency can be enhanced, and the gas supply stability in a low-temperature environment can be ensured. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor of the ordinary skilled in the art.
[0023] Figure 1 It is the overall structure schematic diagram of the utility model;
[0024] Figure 2 It is the local sectional structure schematic diagram of the utility model;
[0025] Figure 3 It is the local structure schematic diagram of the utility model;
[0026] Figure 4 It is the sectional structure schematic diagram of the utility model;
[0027] Figure 5 It is the sectional structure schematic diagram of the utility model;
[0028] Figure 6 It is the gasification pipe structure schematic diagram of the utility model;
[0029] Figure 7 It is the positioning strip structure schematic diagram of the utility model.
[0030] In the drawing, 1, outer cylinder;2, inner cylinder;3, gas outlet;4, first sealing plate;5, gasification pipe;6, positioning strip;7, cooling liquid outlet;8, second sealing plate;9, cooling liquid inlet;10, gas inlet;11, through hole. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0032] As shown in the drawings, Figures 1 to 3 A low-temperature liquefied gas water bath vaporizer comprises an inner cylinder 2 and an outer cylinder 1, a space is left between the inner cylinder 2 and the outer cylinder 1 to form a gasification cavity, the gasification cavity is closed at both ends, the inner cylinder 2 and the outer cylinder 1 are in communication with the gasification cavity, the inner cylinder 2 and the outer cylinder 1 are respectively provided with an air inlet 10 and an air outlet 3 at both ends, and a gasification pipe 5 is installed in the gasification cavity, the air inlet 10 and the air outlet 3 are two ports of the gasification pipe 5.
[0033] The inner cylinder 2 and the outer cylinder 1 are provided with a cooling liquid inlet 9 and a cooling liquid outlet 7, the cooling liquid enters the inner cylinder 2 through the cooling liquid inlet 9, then passes through the side wall of the inner cylinder 2 to enter the gasification cavity, and finally flows out through the cooling liquid outlet 7.
[0034] As shown in the drawings, Figure 4 , Figure 5 The inner cylinder 2 and the outer cylinder 1 are respectively provided with a first sealing plate 4 and a second sealing plate 8 at both sides, the gasification cavity is closed at both ends through the first sealing plate 4 and the second sealing plate 8, and the two ports of the gasification pipe 5 pass through the first sealing plate 4 and the second sealing plate 8.
[0035] The first sealing plate 4 is arranged close to the air outlet 3, and the second sealing plate 8 is arranged close to the air inlet 10.
[0036] The inner cylinder 2 is provided with a through hole 11, and the gasification cavity is in communication with the inside of the inner cylinder 2 through the through hole 11. In the embodiment, a plurality of through holes 11 are evenly arranged along the circumferential direction of the side wall of the inner cylinder 2. The plurality of through holes 11 are located close to the first sealing plate 4 on the side wall of the inner cylinder 2.
[0037] The outer wall of the inner cylinder 2 is provided with a positioning strip 6, the positioning strip 6 is arranged around the outer wall of the inner cylinder 2, the positioning strip 6 and the outer wall of the inner cylinder 2 form a placing groove, and the gasification pipe 5 is installed in the placing groove.
[0038] Specifically, the positioning strip 6 is fixedly connected with the outer wall of the inner cylinder 2 by welding or the like.
[0039] As shown in the drawings, Figure 6 , Figure 7 In the embodiment, the positioning strip 6 is in a spiral shape, and the gasification pipe 5 is matched with the shape of the placing groove.
[0040] The height of the positioning strip 6 is greater than the diameter of the gasification tube 5. The cooling liquid inlet 9 is arranged on the second sealing plate 8 and is connected with the inside of the inner cylinder 2; the cooling liquid outlet 7 is arranged on the side wall of the outer cylinder 1 and is connected with the gasification cavity.
[0041] The cooling liquid outlet 7 is arranged on the side wall of the outer cylinder 1 close to the second sealing plate 8.
[0042] The working principle of the low-temperature liquefied gas water bath gasifier is as follows:
[0043] The cooling liquid affected by the high temperature of the engine flows into the inner cylinder 2 of the water bath gasifier through the cooling liquid inlet 9, flows into the gasification cavity and the space formed by the outer cylinder 1 and the inner cylinder 2 through the through hole 11 on one side of the inner cylinder 2, and then heats the liquefied gas entering the gasification tube 5 through the gas inlet 10 to make the liquefied gas gasify, so that the gasified gas is supplied to the engine through the gas outlet 3, the cooling liquid is cooled through the heat absorption process of the liquefied gas gasification, and then returns to the engine cooling system through the cooling liquid outlet 7 to cool the engine, and the cooling liquid is cooled again to flow into the water bath gasifier, so that the circulation is formed.
[0044] The above is only a preferred embodiment of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A low-temperature liquefied gas water bath vaporizer, characterized in that, It includes an inner cylinder (2) and an outer cylinder (1), with a space between the inner cylinder (2) and the outer cylinder (1) forming a vaporization chamber. The vaporization chamber is closed at both ends. The inner cylinder (2) and the outer cylinder (1) are connected to the vaporization chamber. The inner cylinder (2) and the outer cylinder (1) are respectively provided with an air inlet (10) and an air outlet (3) at both ends. A vaporization pipe (5) is installed in the vaporization chamber. The air inlet (10) and the air outlet (3) are the two ports of the vaporization pipe (5). The inner cylinder (2) and outer cylinder (1) are provided with a coolant inlet (9) and a coolant outlet (7). The coolant enters the inner cylinder (2) through the coolant inlet (9), passes through the side wall of the inner cylinder (2) and enters the vaporization chamber, and finally flows out through the coolant outlet (7).
2. The cryogenic liquefied gas water bath vaporizer according to claim 1, characterized in that, The inner cylinder (2) and the outer cylinder (1) are respectively provided with a first sealing plate (4) and a second sealing plate (8). The two ends of the vaporization chamber are sealed by the first sealing plate (4) and the second sealing plate (8). The two ports of the vaporization pipe (5) pass through the first sealing plate (4) and the second sealing plate (8) respectively.
3. A low-temperature liquefied gas water bath vaporizer according to claim 2, characterized in that, The first sealing plate (4) is positioned near the air outlet (3), and the second sealing plate (8) is positioned near the air inlet (10).
4. A low-temperature liquefied gas water bath vaporizer according to claim 2, characterized in that, The inner cylinder (2) has a through hole (11) on its wall, and the vaporization chamber is connected to the inside of the inner cylinder (2) through the through hole (11).
5. A low-temperature liquefied gas water bath vaporizer according to claim 4, characterized in that, The through hole (11) is located on the side wall of the inner cylinder (2) near the first sealing plate (4).
6. A low-temperature liquefied gas water bath vaporizer according to claim 1, characterized in that, The outer wall of the inner cylinder (2) is provided with a positioning strip (6), which surrounds the outer wall of the inner cylinder (2). The positioning strip (6) and the outer wall of the inner cylinder (2) form a placement groove, and the gasification pipe (5) is installed in the placement groove.
7. A low-temperature liquefied gas water bath vaporizer according to claim 6, characterized in that, The positioning strip (6) is spiral-shaped, and the vaporization tube (5) matches the shape of the placement groove.
8. A low-temperature liquefied gas water bath vaporizer according to claim 7, characterized in that, The height of the positioning strip (6) is greater than the diameter of the gasification tube (5).
9. A low-temperature liquefied gas water bath vaporizer according to claim 2, characterized in that, The coolant inlet (9) is installed on the second sealing plate (8) and is connected to the inside of the inner cylinder (2); the coolant outlet (7) is installed on the side wall of the outer cylinder (1) and is connected to the vaporization chamber.
10. A low-temperature liquefied gas water bath vaporizer according to claim 9, characterized in that, The coolant outlet (7) is located on the side wall of the outer cylinder (1) near the second sealing plate (8).