Small methanol engine supply integrated skid

Abstract

The utility model discloses a small -size methanol machine supply integrated pry dress, including pry dress base, the upper side of pry dress base is fixedly connected with methanol storage jar, the upper side of pry dress base is fixedly connected with methanol dirty liquid jar away from methanol storage jar's one side, one end of pry dress base middle part is fixedly connected with methanol output seat, the top of methanol storage jar is fixedly connected with the filling pipeline of one side near methanol dirty liquid jar, the one side of methanol storage jar near methanol output seat is connected with pump machine parallel line pipe. The utility model is provided with liquid level sensor and pressure gauge, and is equipped with each sampling pipeline, can add liquid level monitoring system, pressure monitoring system and combustible gas monitoring system, improves the degree of automation and security, and the automation control and operation of whole system are convenient to realize, and the automation operation degree of unmanned operation is basically reached.

Description

Technical Field

[0001] This utility model relates to the field of marine gas supply technology, and in particular to a skid-mounted integrated supply system for small methanol engines. Background Technology

[0002] Methanol is a toxic gas, but it is also a clean fuel, producing only carbon dioxide and water vapor when fully burned. Inland waterway methanol-fueled ships are a type of "new energy" inland waterway vessel that primarily uses methanol as its propulsion energy. Because methanol combustion leaves fewer pollutant residues, it can effectively improve the environmental performance of ships during operation. In response to the shipping industry's call for "decarbonization," the demand for methanol-fueled ships is growing.

[0003] However, due to the size limitations of inland waterway vessels, the usable space of general inland waterway vessels is relatively small. At the same time, due to the toxicity and low flash point of methanol fuel, it is dangerous to operate. It also needs to be emptied in advance during maintenance. The recovery of emptied methanol fuel is inconvenient, which reduces the utilization efficiency of methanol. Moreover, methanol fuel ships are just emerging and there is no design solution that can actually meet the needs of inland waterway vessels. Therefore, a design scheme for a small methanol engine supply integrated skid-mounted equipment is proposed. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a small-scale methanol engine supply integrated skid-mounted system that meets the space-saving requirements of inland waterway methanol fuel vessels, adapts to market demand, and has the advantages of small skid footprint, light weight, short manufacturing cycle, easy transportation, high integration, and the ability to ensure stable pressure and temperature of methanol supplied to the main engine. It fully considers the toxicity and low flash point characteristics of methanol fuel, formulates design indicators in combination with user needs, adopts a safer supply scheme, and can be equipped with leakage detection, safety protection and other functions to effectively ensure the safe use of methanol fuel on ships, thus solving the above-mentioned problems.

[0005] To achieve the above objectives, a small methanol generator integrated skid-mounted system is provided, comprising a skid-mounted base, a methanol storage tank fixedly connected to one side of the upper part of the skid-mounted base, a methanol sludge tank fixedly connected to the side of the upper part of the skid-mounted base away from the methanol storage tank, a methanol output seat fixedly connected to the middle of one end of the skid-mounted base, a filling pipeline fixedly connected to the top of the methanol storage tank near the methanol sludge tank, a pump parallel pipeline connected to the side of the methanol storage tank near the methanol output seat, two methanol supply pumps connected in parallel on the pump parallel pipeline, and a dual filter fixedly connected to the end of the pump parallel pipeline away from the methanol storage tank via a pipe. A pipe support frame is fixedly connected to the upper end of the skid-mounted base away from the methanol output seat, and a gas return pipeline is fixedly connected to the upper side of the pipe support frame near the methanol storage tank. The input end of the gas return pipeline is connected to the top of the methanol storage tank and the methanol sludge tank respectively. A drain pipe is fixedly connected to the side of the skid-mounted base away from the methanol storage tank. A pressurization conversion pipe is connected to the end of the drain pipe near the methanol waste tank. A diaphragm pump is installed on the pressurization conversion pipe. An emptying sampling pipe is installed below the end of the drain pipe away from the methanol waste tank. An filling sampling pipe is installed below the end of the filling pipe away from the methanol storage tank.

[0006] According to the small methanol generator integrated skid, the inner side of the methanol output base is provided with four methanol output pipelines, and the output end of the dual filter is connected to the four methanol output pipelines respectively through branch pipes and ESD valves.

[0007] According to the aforementioned small methanol generator integrated skid, both the methanol storage tank and the methanol waste tank are equipped with level sensors, and pressure gauges are fixedly connected to the top of both the methanol storage tank and the methanol waste tank.

[0008] According to the small methanol generator supply integrated skid, a safety return pipeline is fixedly connected to the output section of the pump parallel pipeline, and the end of the safety return pipeline away from the pump parallel pipeline is connected to the top of the methanol storage tank.

[0009] According to the aforementioned small methanol generator integrated skid, both ends of the pressurization conversion pipeline are connected to the top and bottom of the methanol sludge tank respectively via electrically controlled valves, and the discharge pipelines are connected to the pressurization conversion pipelines at both ends of the diaphragm pump respectively via shut-off valves. The input end of the diaphragm pump is equipped with a filter.

[0010] According to the aforementioned small methanol generator integrated skid, the filling return gas pipeline includes a methanol vapor venting pipeline and a pressure balance return gas pipeline, and a return gas sampling pipeline is provided below one end of the return gas connection of the pressure balance return gas pipeline, and one end of the methanol vapor venting pipeline is fixedly connected to an exhaust mast pipeline.

[0011] According to the small methanol generator supply integrated skid, the end of the discharge pipeline away from the diaphragm pump is connected to each methanol pipeline on the skid base through multiple branch pipes and shut-off valves.

[0012] According to the aforementioned small methanol generator integrated skid, a nitrogen input pipeline is provided on the side of the discharge pipeline near the methanol storage tank on the skid base. The output end of the nitrogen input pipeline is connected to each pipeline on the skid base through branch pipes and shut-off valves.

[0013] The above solution has at least one of the following beneficial effects: 1. This utility model is equipped with a liquid level sensor and a pressure gauge. In conjunction with various sampling pipelines, a liquid level monitoring system, a pressure monitoring system, and a combustible gas monitoring system can be added to improve the degree of automation and safety. It facilitates the automated control and operation of the entire system, basically achieving unmanned operation and enhancing the practicality of the device.

[0014] 2. This utility model is equipped with a methanol waste tank, which, together with a pressurization conversion pipeline and a diaphragm pump, can increase the venting force during venting by using the diaphragm pump. By placing methanol into the methanol waste tank, the risk of methanol leakage is reduced. If necessary, the flow path can be changed by switching valves to use the power of the diaphragm pump to reflux methanol. This dual-purpose design not only saves production costs but also improves methanol utilization. It is also easy to arrange aesthetically. The flow rate of methanol fuel can be automatically controlled by valves to meet different operating conditions, thus enhancing the practicality of the device.

[0015] 3. Based on the operating conditions of inland waterway vessels, this utility model can be designed to eliminate the need for heat exchanger heating, reducing the floor space required. Furthermore, the use of instrument pipes as pipelines significantly reduces the number of weld joints. The highly integrated, modular, and standardized design, along with the reasonable layout of the pipeline system and the installation of valves in locations that facilitate operation and maintenance when necessary, allows for mass production while meeting the requirements of the relevant CCS classification society specifications, and is also easy to maintain.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 A three-dimensional structural diagram of the left side of the integrated skid-mounted small methanol generator according to this utility model; Figure 2 A three-dimensional structural diagram of the integrated skid-mounted small methanol generator according to this utility model; Figure 3 This utility model provides a pipeline diagram for the integrated skid-mounted small methanol generator.

[0018] Legend: 1. Skid-mounted base; 2. Methanol storage tank; 3. Methanol waste tank; 4. Methanol output base; 5. Nitrogen input pipeline; 6. Drainage pipeline; 7. Pressurization conversion pipeline; 8. Diaphragm pump; 9. Pump parallel pipeline; 10. Methanol supply pump; 11. Dual filter; 12. Filling pipeline; 13. Filling return gas pipeline; 14. Filling sampling pipeline; 15. Exhaust sampling pipeline; 16. Return gas sampling pipeline; 17. Exhaust mast pipeline; 18. Safety return pipeline; 19. Methanol vapor venting pipeline; 20. Pressure balance return gas pipeline. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. Preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model. The drawings are all in a very simplified form and use non-precise proportions. They are only used to help to explain the embodiments of the present utility model in a convenient and clear way, and should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1-3 This utility model embodiment provides a small-scale methanol generator integrated skid-mounted unit, including a skid-mounted base 1. A methanol storage tank 2 is fixedly connected to one side of the upper part of the skid-mounted base 1. A methanol wastewater tank 3 is fixedly connected to the upper part of the skid-mounted base 1 away from the methanol storage tank 2. A methanol output seat 4 is fixedly connected to the middle of one end of the skid-mounted base 1. Four methanol output pipelines are arranged inside the methanol output seat 4. The output end of the dual filter 11 is connected to the four methanol output pipelines respectively through branch pipes and ESD valves. A filling pipe is fixedly connected to the top of the methanol storage tank 2 near the methanol wastewater tank 3. Route 12, the side of the methanol storage tank 2 near the methanol output seat 4 is connected to a pump parallel pipeline 9, two methanol supply pumps 10 are connected in parallel on the pump parallel pipeline 9, a safety return pipeline 18 is fixedly connected to the output section of the pump parallel pipeline 9, and the end of the safety return pipeline 18 away from the pump parallel pipeline 9 is connected to the top of the methanol storage tank 2. The end of the pump parallel pipeline 9 away from the methanol storage tank 2 is fixedly connected to a dual filter 11 through a pipeline. The pump parallel pipeline 9 and the two methanol supply pumps 10 can be used to form a one-in-one-out standby mode, which is convenient for maintenance without stopping the machine. A pipe support frame is fixedly connected to the upper end of the skid-mounted base 1 away from the methanol output seat 4, and a gas return pipeline 13 is fixedly connected to the upper side of the pipe support frame near the methanol storage tank 2. The input end of the gas return pipeline 13 is connected to the top of the methanol storage tank 2 and the methanol sludge tank 3 respectively. The gas return pipeline 13 includes a methanol vapor venting pipeline 19 and a pressure balance return pipeline 20. A return gas sampling pipeline 16 is set below the return gas connection end of the pressure balance return pipeline 20. One end of the methanol vapor venting pipeline 19 is fixedly connected to an exhaust mast pipeline 17, which can be discharged at high altitude through the exhaust mast to reduce pollution. A drain line 6 is fixedly connected to the side of the skid-mounted base 1 away from the methanol storage tank 2. The end of the drain line 6 away from the diaphragm pump 8 is connected to each methanol pipeline on the skid-mounted base 1 through multiple branch pipes and shut-off valves. The end of the drain line 6 near the methanol sludge tank 3 is connected to a pressurization conversion line 7. A diaphragm pump 8 is installed on the pressurization conversion line 7. Both ends of the pressurization conversion line 7 are connected to the top and bottom of the methanol sludge tank 3 through electrically controlled valves. The drain line 6 is connected to the pressurization conversion line 7 at both ends of the diaphragm pump 8 through shut-off valves. A filter is installed at the input end of the diaphragm pump 8. The diaphragm pump 8 can be used to increase the evacuation force when evacuating, and the methanol can be put into the methanol sludge tank 3 to reduce the risk of methanol leakage. If necessary, the methanol can be refluxed by switching valves to change the flow path. A nitrogen input pipeline 5 is installed on the side of the drain pipe 6 near the methanol storage tank 2 on the skid-mounted base 1. The output end of the nitrogen input pipeline 5 is connected to each pipeline on the skid-mounted base 1 through a branch pipe and a shut-off valve. Both methanol storage tank 2 and methanol waste liquid tank 3 are equipped with liquid level sensors. Pressure gauges are fixedly connected to the top of both methanol storage tank 2 and methanol waste liquid tank 3. An emptying sampling pipe 15 is installed below the end of the discharge pipeline 6 away from methanol waste liquid tank 3. An filling sampling pipe 14 is installed below the end of the filling pipeline 12 away from methanol storage tank 2. By adding a liquid level monitoring system, a pressure monitoring system, and a combustible gas monitoring system, the degree of automation and safety can be improved, and the automated control and operation of the entire system can be easily realized.

[0021] Working Principle: The methanol storage tank 2 and methanol waste tank 3 of this utility model are equipped with level sensors and pressure gauges. In conjunction with the sampling pipes at the ends of each pipeline, the addition of a level monitoring system, pressure monitoring system, and combustible gas monitoring system can improve the level of automation and safety, facilitating the automated control and operation of the entire system, and basically achieving unmanned operation. The methanol waste tank 3, together with the pressurization conversion pipeline 7 and diaphragm pump 8, can increase the venting force during venting by using the diaphragm pump 8, and reduce the risk of methanol leakage by putting methanol into the methanol waste tank 3. When necessary, the methanol can be refluxed by switching valves to change the flow path using the power of the diaphragm pump 8. This dual-purpose design not only saves production costs but also improves methanol utilization.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A small methanol generator supply integrated skid-mounted, including a skid-mounted base (1), characterized in that: A methanol storage tank (2) is fixedly connected to one side of the upper part of the skid-mounted base (1). A methanol sludge tank (3) is fixedly connected to the side of the upper part of the skid-mounted base (1) away from the methanol storage tank (2). A methanol output seat (4) is fixedly connected to the middle of one end of the skid-mounted base (1). A filling pipeline (12) is fixedly connected to the top of the methanol storage tank (2) near the methanol sludge tank (3). A pump parallel pipeline (9) is connected to the side of the methanol storage tank (2) near the methanol output seat (4). Two methanol supply pumps (10) are connected in parallel on the pump parallel pipeline (9). A dual filter (11) is fixedly connected to the end of the pump parallel pipeline (9) away from the methanol storage tank (2) through a pipeline. A pipe support frame is fixedly connected to the upper end of the skid-mounted base (1) away from the methanol output seat (4), and a gas return pipeline (13) is fixedly connected to the upper side of the pipe support frame near the methanol storage tank (2). The input end of the gas return pipeline (13) is connected to the top of the methanol storage tank (2) and the methanol sludge tank (3) respectively. A drain pipe (6) is fixedly connected to the side of the skid-mounted base (1) away from the methanol storage tank (2). The end of the drain pipe (6) near the methanol sludge tank (3) is connected to a pressurization conversion pipe (7). A diaphragm pump (8) is installed on the pressurization conversion pipe (7). A filling and sampling pipe (14) is installed below the end of the filling pipe (12) away from the methanol storage tank (2).

2. The integrated skid-mounted small methanol generator supply according to claim 1, characterized in that, The methanol output seat (4) has four methanol output pipelines on its inner side. The output end of the dual filter (11) is connected to the four methanol output pipelines through branch pipes and ESD valves respectively.

3. The integrated skid-mounted small methanol generator supply according to claim 1, characterized in that, Both the methanol storage tank (2) and the methanol waste liquid tank (3) are equipped with level sensors, and pressure gauges are fixedly connected to the top of both the methanol storage tank (2) and the methanol waste liquid tank (3).

4. The integrated skid-mounted small methanol generator supply according to claim 1, characterized in that, A safety return pipeline (18) is fixedly connected to the output section of the pump parallel pipeline (9), and the end of the safety return pipeline (18) away from the pump parallel pipeline (9) is connected to the top of the methanol storage tank (2).

5. The integrated skid-mounted small methanol generator according to claim 1, characterized in that, Both ends of the pressurization conversion pipeline (7) are connected to the top and bottom of the methanol waste tank (3) respectively through an electric control valve. The discharge pipeline (6) is connected to the pressurization conversion pipeline (7) at both ends of the diaphragm pump (8) respectively through a shut-off valve. The input end of the diaphragm pump (8) is equipped with a filter.

6. The integrated skid-mounted small methanol generator according to claim 1, characterized in that, The refueling return gas pipeline (13) includes a methanol vapor venting pipeline (19) and a pressure balance return gas pipeline (20), and a return gas sampling pipeline (16) is provided below the return gas connection end of the pressure balance return gas pipeline (20). One end of the methanol vapor venting pipeline (19) is fixedly connected to an exhaust mast pipeline (17).

7. The integrated skid-mounted small methanol generator according to claim 5, characterized in that, The end of the discharge pipeline (6) away from the diaphragm pump (8) is connected to each methanol pipeline on the skid base (1) through multiple branch pipes and shut-off valves.

8. The integrated skid-mounted small methanol generator according to claim 1, characterized in that, A nitrogen input pipeline (5) is provided on the side of the drain pipe (6) near the methanol storage tank (2) on the skid-mounted base (1). The output end of the nitrogen input pipeline (5) is connected to each pipeline on the skid-mounted base (1) through a branch pipe and a shut-off valve.

Images