Three-channel four-flow-path multifunctional water bath type vaporizer

Abstract

The utility model relates to the field of water bath type vaporizers, in particular to a three-channel four-flow multifunctional water bath type vaporizer which is characterized in that a shell pass is arranged in a water bath type vaporizer body; the first tube pass and the second tube pass penetrate through the water bath type vaporizer body for heat exchange, air outlets of the first tube pass and the second tube pass are communicated into the two-position three-way valve, and the air outlet end of the two-position three-way valve is communicated into the engine through a pipeline; and the third tube pass penetrates through the water bath type vaporizer body and absorbs heat from the shell pass. According to the utility model, heat exchange can be carried out on the first tube pass and the second tube pass through the shell pass, seamless coupling can be realized after vaporization of cryogenic LNG and temperature return of cooled NG through the arrangement of the two-position three-way valve, and the cryogenic LNG and the cooled NG are supplied to an engine, and heat absorption of a medium in the shell pass can be realized through the third tube pass, so that heat supply and pressurization can be carried out on an LNG cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of water bath type vaporizers, in particular to a three-channel four-flow multifunctional water bath type vaporizer. Background Art

[0002] As a clean energy source, LNG offers advantages such as high calorific value, stable combustion, and convenient storage and transportation, making it an ideal alternative to traditional diesel heavy-duty trucks. LNG heavy-duty trucks use liquefied natural gas as fuel. During operation, LNG must be converted from liquid to gas to power the engine. This conversion process is accomplished using a carburetor.

[0003] Currently, the application scope of traditional water bath vaporizers on the market is relatively limited. They are confined to single heat exchange scenarios and are not suitable for multi-functional heat exchange scenarios. Utility Model Content

[0004] The purpose of the utility model is to solve the limitations of the prior art and to propose a three-channel four-flow multifunctional water bath vaporizer.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The three-channel four-process multifunctional water bath vaporizer comprises a water bath vaporizer body, wherein the water bath vaporizer body is provided with a shell side;

[0007] a first tube pass and a second tube pass, wherein the first tube pass and the second tube pass both pass through the water bath carburetor body and exchange heat with the medium in the shell side, and the gas outlets thereof are both connected to the two-position three-way valve, and the gas outlet end of the two-position three-way valve is connected to the engine through a pipeline;

[0008] The third tube pass passes through the water bath evaporator body and exchanges heat with the medium in the shell side.

[0009] In addition, a preferred structure is that a first tube side inlet is provided at one end of the first tube side, a second tube side inlet is provided at one end of the second tube side, and both the first tube side inlet and the second tube side inlet are located outside the water bath vaporizer body.

[0010] In addition, a preferred structure is that the other ends of the first tube pass and the second tube pass both extend from the other side of the water bath vaporizer body and are connected to the two-position three-way valve.

[0011] In addition, a preferred structure is that the water bath evaporator body is respectively provided with a shell side inlet and a shell side outlet, and both the shell side inlet and the shell side outlet are connected to the shell side in the water bath evaporator body.

[0012] In addition, a preferred structure is that the medium in the first tube side is LNG, the medium in the second tube side is NG, the medium in the third tube side is R290, and the medium in the shell side is engine circulating hot water.

[0013] The beneficial effects of the present invention are as follows: heat exchange can be carried out on the first tube side and the second tube side through the shell side, and through the setting of the two-position three-way valve, the deep-cold LNG vaporization and the NG after cooling can be seamlessly coupled and supplied to the engine after warming up, and the heat of the medium in the shell side can be absorbed through the third tube side to heat and pressurize the LNG cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the three-channel four-flow multifunctional water bath vaporizer proposed in the utility model;

[0015] Figure 2 Schematic diagram of the structure of the water bath vaporizer in Example 2.

[0016] In the figure: 1 water bath carburetor body, 11 shell side inlet, 12 shell side outlet, 2 first tube side, 21 first tube side inlet, 3 second tube side, 31 second tube side inlet, 4 third tube side, 41 third tube side inlet, 42 third tube side outlet, 5 two-position three-way valve, 6 engine. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Example 1:

[0019] Reference Figure 1 The three-channel four-process multifunctional water bath vaporizer comprises a water bath vaporizer body 1, wherein a shell side is provided in the water bath vaporizer body 1;

[0020] The first pipe side 2 and the second pipe side 3 both pass through the water bath evaporator body 1 and exchange heat with the medium in the shell side, and their air outlets are connected to the two-position three-way valve 5, and the air outlet end of the two-position three-way valve 5 is connected to the engine 6 through a pipeline.

[0021] The third tube side 4 passes through the water bath evaporator body 1 and absorbs heat from the medium in the shell side.

[0022] A first pipe-side inlet 21 is provided at one end of the first pipe-side 2, and a second pipe-side inlet 31 is provided at one end of the second pipe-side 3. Both the first pipe-side inlet 21 and the second pipe-side inlet 31 are located outside the water-bath vaporizer body 1. The other ends of the first pipe-side 2 and the second pipe-side 3 extend from the other side of the water-bath vaporizer body 1 and are connected to the two-position three-way valve 5.

[0023] The first tube side 2 is a vaporization heat exchange tube, and the second tube side 3 is a temperature recovery heat exchange tube. LNG is supplied from the first tube side inlet 21 to the first tube side 2, and after being heated by the water in the shell side, it is finally supplied to the engine 6 through the two-position three-way valve 5.

[0024] NG is supplied into the second tube side 3 from the second tube side inlet 31 , and after being reheated by the water in the shell side, it is finally supplied to the engine 6 through the two-position three-way valve 5 .

[0025] The water-bath evaporator body 1 is provided with a shell-side inlet 11 and a shell-side outlet 12, both of which communicate with the shell side within the water-bath evaporator body 1. The shell-side inlet 11 and the shell-side outlet 12 allow water to circulate within the shell side. The medium within the shell side is engine circulating water, which serves as a heat source for the three tube sides.

[0026] The medium in the first tube side 2 is LNG, the medium in the second tube side 3 is NG, the medium in the third tube side 3 is R290, and the medium in the shell side is engine circulating hot water.

[0027] In Example 1, the medium in the first tube side 2 is LNG, and the medium in the second tube side 3 is NG. LNG is natural gas, and NG is liquefied natural gas. The LNG in the first tube side 2 is heated and pressurized in the shell side and then directly supplied to the engine 6. The NG in the second tube side 3 is cooled and returned to room temperature before being supplied to the engine 6.

[0028] Furthermore, the two-position, three-way valve 5 allows for seamless coupling of cryogenic LNG vaporization and NG reheating after cooling. This ensures consistent engine air supply, whether in winter or summer. The two-position, three-way valve 5 switches between LNG and NG supply according to the cooling unit's instructions. When the temperature falls below the set point, the second pipe 3 opens to supply NG, while when the temperature exceeds the set point, the first pipe 2 opens to supply LNG. In winter, when not cooling, the two-position, three-way valve 5 is normally open, heating the LNG supply through the first pipe 2. In summer, when cooling is in progress, the two-position, three-way valve 5 closes the first pipe 2 and opens the second pipe 3 to supply NG reheating.

[0029] Furthermore, the medium in the third pipe side 4 is R290, which refers to propane. It comes from the circulation pump assembly and has the advantages of not being easily frozen, easy to vaporize, and easy to liquefy. Its function in this water bath vaporizer is to transport heat. R290 absorbs heat from the engine circulating water in the shell side of the water bath vaporizer, and then releases heat into the LNG cylinder, thus transporting heat. It is worth noting that the two ends of the circulation pump assembly are respectively connected to the third pipe side inlet 41 and the third pipe side outlet 42 at both ends of the third pipe side 4, so that the circulation of R290 can be realized. The specific structure of the LNG cylinder and the circulation pump assembly has been disclosed in other Chinese patents. For details, see CN 113266762B, patent number: ZL202110683211.X. This does not belong to the main technical problems to be solved in this technical solution, so it will not be elaborated on.

[0030] In the present invention, heat exchange can be performed on the first pipe side 2 and the second pipe side 3 through the shell side. By setting the two-position three-way valve 5, the deep-cold LNG vaporization and the NG after cooling can be seamlessly coupled and supplied to the engine 6. In addition, the third pipe side 4 can absorb heat from the medium in the shell side to heat and pressurize the LNG cylinder.

[0031] Example 2:

[0032] Reference Figure 2 The difference between this embodiment and the first embodiment is that the second pipe side 3 and the two-position three-way valve 5 are removed in this embodiment, and the first pipe side 2 directly supplies the fuel to the engine 6. The rest of the structure is the same as that of the first embodiment. The second embodiment is a water bath carburetor in a hot supercharged state, and does not include the application of cold energy air conditioning.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Three-channel, four-flow multifunctional water bath vaporizer, including: A water bath type vaporizer body (1), wherein a shell side is provided in the water bath type vaporizer body (1); A first pipe side (2) and a second pipe side (3), both of which pass through the water bath type vaporizer body (1) and exchange heat with the medium in the shell side, and whose gas outlets are both connected to the two-position three-way valve (5), and the gas outlet end of the two-position three-way valve (5) is connected to the engine (6) through a pipeline; The third tube side (4) passes through the water bath type vaporizer body (1) and exchanges heat with the medium in the shell side.

2. The three-channel four-flow multifunctional water bath vaporizer according to claim 1, characterized in that: One end of the first tube side (2) is provided with a first tube side inlet (21), and one end of the second tube side (3) is provided with a second tube side inlet (31), and both the first tube side inlet (21) and the second tube side inlet (31) are located outside the water bath vaporizer body (1).

3. The three-channel four-flow multifunctional water bath vaporizer according to claim 2, characterized in that: The other ends of the first tube side (2) and the second tube side (3) extend from the other side of the water bath vaporizer body (1) and are connected to the two-position three-way valve (5).

4. The three-channel four-flow multifunctional water bath vaporizer according to claim 1, characterized in that: The water bath type vaporizer body (1) is provided with a shell side inlet (11) and a shell side outlet (12), respectively, and the shell side inlet (11) and the shell side outlet (12) are both communicated with the shell side in the water bath type vaporizer body (1).

5. The three-channel four-flow multifunctional water bath vaporizer according to claim 1, characterized in that: The medium in the first tube side (2) is LNG, the medium in the second tube side (3) is NG, the medium in the third tube side (4) is R290, and the medium in the shell side is engine circulating hot water.

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