CN103615660B - A kind of water bath type vaporizer utilizing engine waste heat energy - Google Patents
A kind of water bath type vaporizer utilizing engine waste heat energy Download PDFInfo
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Abstract
本发明公开了一种利用发动机废热能的水浴式汽化器，包括：换热筒体，在换热筒体的两端分设有液化天然气进口与气化天然气出口，在换热筒体内设有螺旋形换热管，螺旋形换热管的两端分别与换热筒体的液化天然气进口与气化天然气出口连通，换热筒体两端还分设有进水接口与出水接口，液化天然气储罐通过输送管路与换热筒体的液化天然气进口连通，换热筒体的气化天然气出口通过输送管路与气体暂存箱连通，气体暂存箱通过输送管路与发动机相连，发动机旁设有水箱，水箱通过输送管路与换热筒体的进水接口连通，换热筒体的出水接口通过输送管路与水箱连通，在换热筒体与液化天然气储罐之间设有加压机构。本发明具有节能环保的优点。
The invention discloses a water-bath carburetor utilizing waste heat energy of an engine, comprising: a heat exchange cylinder, a liquefied natural gas inlet and a gasified natural gas outlet are respectively provided at both ends of the heat exchange cylinder, and a spiral Heat exchange tube, the two ends of the spiral heat exchange tube are respectively connected with the liquefied natural gas inlet and the gasified natural gas outlet of the heat exchange cylinder. The delivery pipeline is connected with the liquefied natural gas inlet of the heat exchange cylinder, and the gasified natural gas outlet of the heat exchange cylinder is connected with the gas temporary storage box through the delivery pipeline, and the gas temporary storage box is connected with the engine through the delivery pipeline. Water tank, the water tank is connected with the water inlet interface of the heat exchange cylinder through the delivery pipeline, and the water outlet interface of the heat exchange cylinder is connected with the water tank through the delivery pipeline, and a pressurization mechanism is arranged between the heat exchange cylinder and the liquefied natural gas storage tank . The invention has the advantages of energy saving and environmental protection.
Description
技术领域 technical field
本发明涉及液化天然气汽化装置技术领域，具体涉及一种利用发动机废热能的水浴式汽化器。 The invention relates to the technical field of liquefied natural gas vaporization devices, in particular to a water-bath vaporizer utilizing engine waste heat energy.
背景技术 Background technique
现阶段，贮存在液化天然气瓶中的低温液化天然气一般通过汽化器将液化天然气转化成气化天然气来供发动机使用，目前所使用的液化天然气汽化器主要采用电热元件加热的方式来提供液化天然气气化所需要的能量，这种汽化器造价高，耗能大，企业生产成本较高，同时，发动机在使用过程中会不断产生热能，这些热能都是直接散到空气中浪费掉，造成了能源的浪费。 At present, the low-temperature liquefied natural gas stored in the liquefied natural gas bottle is generally converted into gasified natural gas through a vaporizer for use by the engine. The energy required, this kind of carburetor is expensive, consumes a lot of energy, and the production cost of the enterprise is relatively high. At the same time, the engine will continuously generate heat energy during use, and these heat energy will be directly dissipated into the air to be wasted, resulting in a waste of energy.
发明内容 Contents of the invention
本发明的目的是提供一种成本较低、节能环保的一种利用发动机废热能的水浴式汽化器。 The object of the present invention is to provide a water-bath type carburetor that utilizes the waste heat energy of the engine with low cost, energy saving and environmental protection.
为实现上述目的，本发明采用了如下技术方案：所述的一种利用发动机废热能的水浴式汽化器，包括：内部为中空结构且密封的换热筒体，在换热筒体的两端分别设置有与其内部相密封连通的液化天然气进口与气化天然气出口，在换热筒体内设置有螺旋形换热管，螺旋形换热管的两端分别与换热筒体的液化天然气进口与气化天然气出口密封连通，在换热筒体上靠近液化天然气进口的一端设置有与换热筒体内部密封连通的进水接口，在换热筒体上靠近气化天然气出口的一端设置有与换热筒体内部密封连通的出水接口，液化天然气储罐的出液口通过输送管路与换热筒体的液化天然气进口密封连通，换热筒体的气化天然气出口通过输送管路与气体暂存箱的入口密封连通，气体暂存箱的出口通过输送管路与发动机相连，在发动机旁设置有水箱，水箱的出水口通过输送管路与换热筒体的进水接口密封连通，换热筒体的出水接口通过输送管路与水箱的进水口密封连通，在换热筒体与液化天然气储罐之间还设置有能增加液化天然气储罐内压力的加压机构。 In order to achieve the above object, the present invention adopts the following technical solution: the water-bath type carburetor utilizing waste heat energy of the engine includes: a heat exchange cylinder with a hollow structure inside and a sealed heat exchange cylinder, and the two ends of the heat exchange cylinder are respectively There is a liquefied natural gas inlet and a gasified natural gas outlet that are sealed and connected to the inside, and a spiral heat exchange tube is arranged in the heat exchange cylinder. The end of the heat exchange cylinder close to the inlet of the liquefied natural gas is provided with a water inlet port which is in sealing communication with the inside of the heat exchange cylinder, and the end of the heat exchange cylinder close to the outlet of the gasification natural gas is provided with a water exchange interface The water outlet port inside the heat exchange cylinder is sealed and connected. The liquid outlet of the LNG storage tank is in sealing communication with the LNG inlet of the heat exchange cylinder through the transmission pipeline. The gasified natural gas outlet of the heat exchange cylinder is connected with the gas temporary The inlet of the storage tank is sealed and connected, and the outlet of the gas temporary storage tank is connected to the engine through the delivery pipeline. A water tank is installed next to the engine. The water outlet interface of the cylinder body is in sealing communication with the water inlet of the water tank through the delivery pipeline, and a pressurizing mechanism capable of increasing the internal pressure of the LNG storage tank is also provided between the heat exchange cylinder body and the LNG storage tank.
进一步地，前述的一种利用发动机废热能的水浴式汽化器，其中：所速的加压机构的结构为：在换热筒体的两端还分别设置有与其内部相密封连通的第二液化天然气进口与第二气化天然气出口，在换热筒体内还设置有加压管，加压管的两端分别与第二液化天然气进口与第二气化天然气出口相密封连通，第二液化天然气进口通过输送管路与液化天然气储罐的出液口相密封连通，第二气化天然气出口通过输送管路与液化天然气储罐的进液口相密封连通。 Furthermore, the aforementioned water-bath evaporator utilizing engine waste heat energy, wherein: the structure of the fast pressurizing mechanism is: the two ends of the heat exchange cylinder are respectively provided with a second liquefied natural gas that is sealed and communicated with its interior. The inlet and the second gasified natural gas outlet are also provided with a pressurized tube in the heat exchange cylinder. The two ends of the pressurized tube are respectively connected to the second liquefied natural gas inlet and the second gasified natural gas outlet. The second vaporized natural gas outlet is sealed and communicated with the liquid inlet of the liquefied natural gas storage tank through the delivery pipeline.
进一步地，前述的一种利用发动机废热能的水浴式汽化器，其中：所述的输送管路包括输送管道、以及安装在输送管道上的控制阀。 Further, the aforementioned water-bath carburetor utilizing engine waste heat energy, wherein: the delivery pipeline includes a delivery pipeline and a control valve installed on the delivery pipeline.
通过上述技术方案的实施，本发明的有益效果是：能将发动机工作时产生的废能热作为使液化天然气汽化所需的热能，不仅保证了液化天然气的换热效率，避免了能量的浪费，而且设备结构简单，企业生产成本低。 Through the implementation of the above-mentioned technical solution, the beneficial effect of the present invention is: the waste energy heat generated when the engine is working can be used as the heat energy required for the vaporization of the liquefied natural gas, which not only ensures the heat exchange efficiency of the liquefied natural gas, but also avoids the waste of energy. Moreover, the equipment structure is simple, and the production cost of the enterprise is low.
附图说明 Description of drawings
图1为本发明所述的一种利用发动机废热能的水浴式汽化器的结构示意图。 Fig. 1 is a structural schematic diagram of a water-bath carburetor utilizing waste heat energy of an engine according to the present invention.
具体实施方式 Detailed ways
下面结合附图和具体实施例对本发明作进一步说明。 The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
如图1所述的一种利用发动机废热能的水浴式汽化器，包括：内部为中空结构且密封的换热筒体1，在换热筒体1的左、右两端分别设置有与其内部相密封连通的第一气化天然气出口3与第一液化天然气进口2，在换热筒体1内设置有螺旋形换热管4，螺旋形换热管4的左端与换热筒体1左端的第一气化天然气出口3密封连通，螺旋形换热管4的右端与换热筒体1右端的第一液化天然气进口2密封连通，在换热筒体1上靠近第一液化天然气进口2的一端设置有与换热筒体1密封连通的进水接口5，在换热筒体1上靠近第一气化天然气出口3的一端设置有与换热筒体1密封连通的出水接口6，液化天然气储罐7的出液口通过第一输送管道8及安装在第一输送管道8上的第一控制阀9与换热筒体1的第一液化天然气进口2密封连通，换热筒体1的第一气化天然气出口3通过第二输送管道81及安装在第二输送管道81上的第二控制阀91与气体暂存箱10的入口密封连通，气体暂存箱10的出口通过第三输送管道82及安装在第三输送管道82上的第三控制阀92与发动机11相连，在发动机11旁设置有水箱12，水箱12的出水口第四输送管道83及安装在第四输送管道83上的第四控制阀93与换热筒体1的进水接口5密封连通，换热筒体1的出水接口6通过第五输送管道84及安装在第五输送管道84上的第五控制阀94与水箱12的进水口密封连通，在换热筒体1与液化天然气储罐7之间还设置有能增加液化天然气储罐7内压力的加压机构，在本实施例中，所述的加压机构的结构为：在换热筒体1的左、右两端分别设置有与其内部相密封连通的第二气化天然气出口13第二液化天然气进口14，在换热筒体1内还设置有加压管15，加压管15的左端与第二气化天然气出口13密封连通，加压管15的右端与第二液化天然气进口14密封连通，第二液化天然气进口14通过第六输送管道85及安装在第六输送管道85上的第六控制阀95与液化天然气储罐7的出液口密封连通，第二气化天然气出口13通过第七输送管道86及安装在第七输送管道86上的第七控制阀96与液化天然气储罐7的进液口相密封连通。 As shown in Figure 1, a water-bath carburetor utilizing engine waste heat energy includes: a heat exchange cylinder 1 with a hollow structure and a seal inside, and the left and right ends of the heat exchange cylinder 1 are respectively provided with The first gasified natural gas outlet 3 and the first liquefied natural gas inlet 2 are sealed and communicated. A spiral heat exchange tube 4 is arranged in the heat exchange cylinder 1. The left end of the spiral heat exchange tube 4 is connected to the left end of the heat exchange cylinder 1. The first gasified natural gas outlet 3 is in sealed communication, and the right end of the spiral heat exchange tube 4 is in sealed communication with the first liquefied natural gas inlet 2 at the right end of the heat exchange cylinder 1, and on the heat exchange cylinder 1 close to the first liquefied natural gas inlet 2 One end is provided with a water inlet port 5 in sealing communication with the heat exchange cylinder 1, and the end of the heat exchange cylinder 1 close to the first gasification natural gas outlet 3 is provided with a water outlet 6 in sealing communication with the heat exchange cylinder 1, and the liquefaction The liquid outlet of the natural gas storage tank 7 is in sealing communication with the first liquefied natural gas inlet 2 of the heat exchange cylinder 1 through the first delivery pipeline 8 and the first control valve 9 installed on the first delivery pipeline 8, and the heat exchange cylinder 1 The first gasified natural gas outlet 3 of the first gasification natural gas outlet 3 is in sealing communication with the inlet of the gas temporary storage tank 10 through the second delivery pipeline 81 and the second control valve 91 installed on the second delivery pipeline 81, and the outlet of the gas temporary storage box 10 is connected through the third The delivery pipeline 82 and the third control valve 92 installed on the third delivery pipeline 82 are connected to the engine 11, the water tank 12 is arranged beside the engine 11, the fourth delivery pipeline 83 of the water outlet of the water tank 12 and the fourth delivery pipeline 83 installed on the fourth delivery pipeline 83 The fourth control valve 93 on the top is in sealing communication with the water inlet port 5 of the heat exchange cylinder 1, and the water outlet port 6 of the heat exchange cylinder 1 passes through the fifth delivery pipe 84 and the fifth control valve installed on the fifth delivery pipe 84 94 is in sealing communication with the water inlet of the water tank 12, and a pressurizing mechanism capable of increasing the internal pressure of the liquefied natural gas storage tank 7 is also provided between the heat exchange cylinder 1 and the liquefied natural gas storage tank 7. In this embodiment, the described The structure of the pressurizing mechanism is: the left and right ends of the heat exchange cylinder 1 are respectively provided with a second gasified natural gas outlet 13 and a second liquefied natural gas inlet 14 which are sealed and communicated with the inside of the heat exchange cylinder 1. A pressurized pipe 15 is provided, the left end of the pressurized pipe 15 is in sealing communication with the second gasified natural gas outlet 13, the right end of the pressurized pipe 15 is in sealed communication with the second liquefied natural gas inlet 14, and the second liquefied natural gas inlet 14 is transported through the sixth The pipeline 85 and the sixth control valve 95 installed on the sixth delivery pipeline 85 are in sealing communication with the liquid outlet of the LNG storage tank 7, and the second gasified natural gas outlet 13 passes through the seventh delivery pipeline 86 and is installed on the seventh delivery pipeline. The seventh control valve 96 on 86 is in sealing communication with the liquid inlet of the LNG storage tank 7 .
本发明的工作原理如下：发动机11使用过程中持续产生的热能不断加热水箱12中的水，水箱12中加热后的水从第四输送管道83与进水接口5进入换热筒体1，使换热筒体1内的充满加热后的水，接着使液化天然气储罐7中的液化天然气从第一输送管道8与第一液化天然气进口2进入换热筒体1内的螺旋形换热管4，在液化天然气从螺旋形换热管4的进液端向左侧的出气端输送的过程中，液化天然气逐渐吸收换热筒体1内加热水的热量而逐渐气化，当液化天然气输送至螺旋形换热管4的出气端时，液化天然气会完全气化成气化天然气，接着气化天然气会从第二输送管道81进入气体暂存箱10中进行暂时储存，这样有利用发动机的安全工作，气体暂存箱10中的气化天然气再从第三输送管道82进入发动机11中供发动机11使用；在液化天然气从第一输送管道8、螺旋形换热管4、第二输送管道81、气体暂存箱10与第三输送管道82进入发动机11的过程中，液化天然气储罐7中的液化天然气会同时从第六输送管道85与第二液化天然气进口14进入换热筒体1内的加压管15，在液化天然气从加压管15右侧的进液端向左侧的出气端输送的过程中，液化天然气逐渐吸收换热筒体1内加热水的热量而逐渐气化，当液化天然气输送至加压管15的出气端时，液化天然气会完全气化成气化天然气，接着气化天然气会从第二气化天然气出口13与第七输送管道86进入液化天然气储罐7，气化天然气进入液化天然气储罐7后，不仅提高了液化天然气储罐7内的压力，使液化天然气的循环输送更加容易，也进一步提高了液化天然气储罐7的温度，避免了液化天然气储罐7在使用过程中出现罐体表面的霜化；同时在液化天然气在螺旋形换热管4与加压管15中从右至左逐渐气化的过程中，会逐渐吸收换热筒体1中的热水热量，使换热筒体1内水温降低，这时水温较低的水会从第五输送管道84进入水箱12中被发动机11产生的热能重新加热并继续输送至换热筒体1中；本发明的优点是：能将发动机工作时产生的废能热作为使液化天然气汽化所需的热能，不仅保证了液化天然气的换热效率，避免了能量的浪费，而且设备结构简单，企业生产成本低。 The working principle of the present invention is as follows: the heat energy continuously generated during the use of the engine 11 continuously heats the water in the water tank 12, and the heated water in the water tank 12 enters the heat exchange cylinder 1 from the fourth delivery pipe 83 and the water inlet interface 5, so that The heat exchange cylinder 1 is filled with heated water, and then the liquefied natural gas in the liquefied natural gas storage tank 7 enters the spiral heat exchange tube in the heat exchange cylinder 1 from the first delivery pipeline 8 and the first liquefied natural gas inlet 2 4. During the process of transporting the liquefied natural gas from the liquid inlet end of the spiral heat exchange tube 4 to the left gas outlet end, the liquefied natural gas gradually absorbs the heat of the heating water in the heat exchange cylinder 1 and gradually vaporizes. When the liquefied natural gas is transported When it reaches the gas outlet end of the spiral heat exchange tube 4, the liquefied natural gas will be completely gasified into gasified natural gas, and then the gasified natural gas will enter the gas temporary storage tank 10 from the second delivery pipeline 81 for temporary storage, so that the safety of the engine can be utilized. Work, the vaporized natural gas in the gas temporary storage tank 10 enters the engine 11 from the third delivery pipeline 82 for use by the engine 11; 1. When the gas temporary storage tank 10 and the third delivery pipeline 82 enter the engine 11, the liquefied natural gas in the liquefied natural gas storage tank 7 will enter the heat exchange cylinder 1 from the sixth delivery pipeline 85 and the second liquefied natural gas inlet 14 at the same time The pressurized pipe 15, in the process of transporting the liquefied natural gas from the liquid inlet end on the right side of the pressurized pipe 15 to the gas outlet end on the left side, the liquefied natural gas gradually absorbs the heat of the heating water in the heat exchange cylinder 1 and gradually vaporizes, When the liquefied natural gas is delivered to the gas outlet end of the pressurized pipe 15, the liquefied natural gas will be completely vaporized into gasified natural gas, and then the gasified natural gas will enter the liquefied natural gas storage tank 7 from the second gasified natural gas outlet 13 and the seventh delivery pipeline 86, After the gasified natural gas enters the LNG storage tank 7, it not only increases the pressure in the LNG storage tank 7, makes the circulating transportation of the LNG easier, but also further increases the temperature of the LNG storage tank 7, avoiding the pressure of the LNG storage tank. 7 Frosting occurs on the surface of the tank during use; at the same time, when the liquefied natural gas is gradually gasified from right to left in the spiral heat exchange tube 4 and the pressure tube 15, it will gradually absorb in the heat exchange cylinder 1 The heat of the hot water reduces the temperature of the water in the heat exchange cylinder 1. At this time, the water with a lower water temperature will enter the water tank 12 from the fifth delivery pipe 84 and be reheated by the heat energy generated by the engine 11 and continue to be transported to the heat exchange cylinder 1. middle; the advantages of the present invention are: the waste energy heat generated when the engine is working can be used as the heat energy required for vaporizing the liquefied natural gas, which not only ensures the heat exchange efficiency of the liquefied natural gas, avoids the waste of energy, but also has a simple structure of the equipment, and the enterprise Low production cost.
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| CN106610028A (en) * | 2017-01-06 | 2017-05-03 | 张家港市华地机械装备有限公司 | Electric heating type CNG (compressed natural gas) heater |
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| CN202441512U (en) * | 2012-03-08 | 2012-09-19 | 宁波明欣化工机械有限责任公司 | Automobile gas fuel saturation process control device |
| CN102644534A (en) * | 2012-05-07 | 2012-08-22 | 湖北三江船艇科技有限公司 | Starting system for non-cyclical water-cooling single liquefied natural gas fuel engine |
| CN102840057A (en) * | 2012-09-07 | 2012-12-26 | 张家港富瑞特种装备股份有限公司 | Self-boosting device of gas cylinder used for liquefied natural gas vehicle and boosting method thereof |
| CN203202609U (en) * | 2013-03-21 | 2013-09-18 | 宁波明欣化工机械有限责任公司 | Integrated vaporization pressure stabilizer |
| CN203571424U (en) * | 2013-12-03 | 2014-04-30 | 张家港市华地机械装备有限公司 | Water bath type carburetor by using waste heat energy of engine |
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| Publication number | Publication date |
|---|---|
| CN103615660A (en) | 2014-03-05 |
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Denomination of invention: A water bath type vaporizer utilizing engine waste heat energy Granted publication date: 20151230 Pledgee: CITIC Bank Limited by Share Ltd. Suzhou branch Pledgor: ZHANGJIAGANG HUADI MACHINERY EQUIPMENT Co.,Ltd. Registration number: Y2025980060745 |