Movable skid-mounted methanol gas supply system

Abstract

The utility model relates to a movable skid-mounted methanol gas supply system, which comprises a PLC (Programmable Logic Controller) control cabinet, a methanol storage tank and a working tank, the top of the methanol storage tank is provided with an overhaul inlet hole, one side of the overhaul inlet hole is provided with an oil gas recovery interface, the other side of the overhaul inlet hole is provided with a liquid level meter, the liquid level meter is electrically connected with the PLC control cabinet, and the PLC control cabinet is electrically connected with the working tank. A mechanical breather valve is arranged on one side of the liquid level meter, a liquid inlet pipe is arranged in the methanol storage tank, the liquid inlet pipe is connected with one end of a discharging pump, the other end of the discharging pump is connected with a basket filter, the basket filter is connected with a quick connector, and the discharging pump is electrically connected with a pump control box. The utility model not only solves the problems of long period, large occupied area, high cost, complicated reconstruction and extension and the like of the construction of a methanol fuel supply fixed station, but also has the advantages of strong reproducibility, flexible application, wide market popularization and application prospects, simplicity and convenience in operation and high safety.

Description

Technical Field

[0001] The utility model relates to the technical field of methanol gas supply equipment, in particular to a movable skid-mounted methanol gas supply system. Background Art

[0002] Methanol fuel is a new type of clean fuel made by mixing industrial methanol or fuel methanol with denatured alcohol additives and existing national standard gasoline and diesel (or component oil) in a certain volume (or weight ratio) through strict scientific processes. It is widely used in the shipbuilding field and ceramic industry.

[0003] Among them, most methanol fuel supply systems adopt a fixed station construction model. Methanol storage tanks require separate equipment foundations, piping systems, electronic control systems, etc., which need to be installed and debugged on site. The workload is large, the cycle is long, and the cost is high. In particular, it occupies a large area and is easily restricted by external conditions. It cannot adapt well to the use of methanol fuel in the ceramic industry and other industries. Utility Model Content

[0004] In view of the above problems, the utility model provides a movable skid-mounted methanol gas supply system, which not only solves the problems of long construction period, large footprint, high cost, and complex renovation and expansion of fixed methanol fuel supply stations, but also has strong replicability, flexible application, broad market promotion and application prospects, easy operation and high safety.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is as follows:

[0006] A movable skid-mounted methanol gas supply system comprises a PLC control cabinet, a methanol storage tank and a working tank, wherein an inspection hole is provided on the top of the methanol storage tank, an oil and gas recovery interface is provided on one side of the inspection hole, a liquid level gauge is provided on the other side of the inspection hole, the liquid level gauge is electrically connected to the PLC control cabinet, a mechanical breathing valve is provided on one side of the liquid level gauge, a liquid inlet pipe is provided inside the methanol storage tank, the liquid inlet pipe is connected to one end of a discharge pump, the other end of the discharge pump is connected to a basket filter, the basket filter is connected to a quick connector, the discharge pump is electrically connected to a pump control box, a liquid outlet is provided at the bottom of the methanol storage tank, the liquid outlet is connected to a first branch liquid supply pipe, and the The first branch liquid supply pipe is connected to the first feed pump, the first feed pump is connected to the check valve, a stop valve is provided between the check valve and the first feed pump, the liquid outlet is connected to the second branch liquid supply pipe, a stop valve is provided on the second branch liquid supply pipe, the liquid outlet is connected to the third branch liquid supply pipe, the third branch liquid supply pipe is connected to the second feed pump, the second feed pump is connected to the check valve, a stop valve is provided between the check valve and the second feed pump, the first feed pump is electrically connected to the PLC control cabinet, the second feed pump is electrically connected to the PLC control cabinet, the first branch liquid supply pipe, the second branch liquid supply pipe and the third branch liquid supply pipe are respectively connected to the main liquid supply pipe.

[0007] Preferably, the main liquid supply pipe is connected to a liquid supply port, the liquid supply port is arranged at the bottom of the working tank, a liquid supply solenoid valve is provided at the liquid supply port, and the liquid supply solenoid valve is electrically connected to the PLC control cabinet.

[0008] Preferably, a working tank level meter and a flow meter are provided on the top of the working tank, the working tank level meter is connected to the PLC control cabinet, and the flow meter is connected to the PLC control cabinet.

[0009] Preferably, a ball valve is provided between the unloading pump and the liquid inlet pipe.

[0010] Preferably, a ball valve is provided between the basket filter and the quick connector.

[0011] Preferably, a ball valve is provided on the first branch liquid supply pipe, and the ball valve is located between the liquid outlet and the first feed pump.

[0012] Preferably, a ball valve is provided on the third branch liquid supply pipe, and the ball valve is located between the liquid outlet and the second feed pump.

[0013] Preferably, the PLC control cabinet is electrically connected to the combustible gas detector.

[0014] Preferably, the PLC control cabinet is electrically connected to an explosion-proof sound and light alarm.

[0015] Preferably, the methanol storage tank is formed by welding.

[0016] The utility model has the following positive effects:

[0017] 1. The utility model adopts a highly integrated, modular and standardized design, with three-dimensional piping design, reasonable piping system layout, and valves installed in positions that are convenient for operation and maintenance when necessary; and is equipped with a liquid level monitoring system, a pressure monitoring system, a combustible gas monitoring system, etc., with a high degree of automation and safety, realizing the automatic control and operation of the entire system, basically reaching the level of automated operation without human operation.

[0018] 2. The utility model realizes the utilization of methanol fuel through methanol storage tanks, PLC control cabinets and working tanks, which not only solves the problems of long construction period, large floor space, high cost and complex reconstruction and expansion of fixed methanol fuel supply stations, but also realizes full automatic control of the entire operation process, including pump start and stop, tank liquid level monitoring, pressure and flow control, leakage monitoring, etc. It can minimize the occurrence of safety accidents such as human misoperation, overpressure and leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the working tank of the utility model.

[0021] Explanation of numbers in the figure: 1-methanol storage tank, 2-maintenance entry hole, 3-oil and gas recovery interface, 4-mechanical breathing valve, 5-liquid level gauge, 6-PLC control cabinet, 7-combustible gas detector, 8-explosion-proof sound and light alarm, 9-pump control box, 10-unloading pump, 11-basket filter, 12-ball valve, 13-quick connector, 14-liquid supply port, 15-liquid inlet pipe, 16-liquid outlet, 17-first feed pump, 18-stop valve, 19-check valve, 20-second feed pump, 21-working tank level gauge, 22-flow meter, 23-liquid supply solenoid valve, 24-working tank, 25-main liquid supply pipe, 251-first branch liquid supply pipe, 252-second branch liquid supply pipe, 253-third branch liquid supply pipe. DETAILED DESCRIPTION

[0022] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0023] Example: Figure 1 or Figure 2 As shown, a movable skid-mounted methanol gas supply system includes a PLC control cabinet 6, a methanol storage tank 1 and a working tank 24, wherein an inspection hole 2 is provided on the top of the methanol storage tank 1, an oil and gas recovery interface 3 is provided on one side of the inspection hole 2, a liquid level gauge 5 is provided on the other side of the inspection hole 2, the liquid level gauge 5 is electrically connected to the PLC control cabinet 6, a mechanical breathing valve 4 is provided on one side of the liquid level gauge 5, a liquid inlet pipe 15 is provided inside the methanol storage tank 1, the liquid inlet pipe 15 is connected to one end of a discharge pump 10, the other end of the discharge pump 10 is connected to a basket filter 11, the basket filter 11 is connected to a quick connector 13, the discharge pump 10 is electrically connected to a pump control box 9, a liquid outlet 16 is provided at the bottom of the methanol storage tank 1, the liquid outlet 16 is connected to a first branch liquid supply pipe 251, and the first branch liquid supply pipe 251 It is connected to the first feed pump 17, which is connected to the check valve 19, and a stop valve 18 is provided between the check valve 19 and the first feed pump 17. The liquid outlet 16 is connected to the second branch liquid supply pipe 252, and the second branch liquid supply pipe 252 is provided with a stop valve 18. The liquid outlet 16 is connected to the third branch liquid supply pipe 253, and the third branch liquid supply pipe 253 is connected to the second feed pump 20. The second feed pump 20 is connected to the check valve 19, and a stop valve 18 is provided between the check valve 19 and the second feed pump 20. The first feed pump 17 is electrically connected to the PLC control cabinet 6, and the second feed pump 20 is electrically connected to the PLC control cabinet 6. The first branch liquid supply pipe 251, the second branch liquid supply pipe 252 and the third branch liquid supply pipe 253 are respectively connected to the main liquid supply pipe 25.

[0024] The first branch liquid supply pipe 251 and the third branch liquid supply pipe 253 are in a one-in-one relationship. For example, if the pump of the first branch liquid supply pipe 251 is broken and needs to be repaired, the pump of the third branch liquid supply pipe 253 is activated for delivery. If both the first branch liquid supply pipe 251 and the third branch liquid supply pipe 253 are broken or cannot be used due to power outage, the manual mode of the second branch liquid supply pipe 252 is used.

[0025] In this embodiment, the main liquid supply pipe 25 is connected to the liquid supply port 14 (the pipeline and the pipe port are sealed and connected to ensure that the methanol fuel can enter the working tank), the liquid supply port 14 is arranged at the bottom of the working tank 24, and a liquid supply solenoid valve 23 is provided at the liquid supply port 14 (the PLC control cabinet can control the liquid supply solenoid valve, thereby controlling the input amount of methanol fuel), and the liquid supply solenoid valve 23 is electrically connected to the PLC control cabinet 6.

[0026] In this embodiment, a working tank level meter 21 and a flow meter 22 are provided on the top of the working tank 24 . The working tank level meter 21 is connected to the PLC control cabinet 6 , and the flow meter 22 is connected to the PLC control cabinet 6 .

[0027] In this embodiment, a ball valve 12 is provided between the unloading pump 10 and the liquid inlet pipe 15 .

[0028] In this embodiment, a ball valve 12 is provided between the basket filter 11 and the quick connector 13 .

[0029] In this embodiment, a ball valve 12 is disposed on the first branch liquid supply pipe 251 , and the ball valve 12 is located between the liquid outlet 16 and the first feed pump 17 .

[0030] In this embodiment, a ball valve 12 is provided on the third branch liquid supply pipe 253 , and the ball valve 12 is located between the liquid outlet 16 and the second feed pump 20 .

[0031] In this embodiment, the PLC control cabinet 6 is electrically connected to the combustible gas detector 7 .

[0032] In this embodiment, the PLC control cabinet 6 is electrically connected to the explosion-proof sound and light alarm 8 .

[0033] In this embodiment, the methanol storage tank 1 is formed by welding.

[0034] The working principle of the utility model is as follows: after the methanol tank truck arrives at the site of use, the methanol fuel is transported to the methanol storage tank through the unloading pump, and the methanol fuel stored in the storage tank is transported to each methanol fuel use terminal (working tank) through the bottom liquid outlet pipeline system of the methanol storage tank and the methanol fuel pump, wherein the methanol tank truck is connected to the quick connector, the unloading pump is turned on, and the methanol fuel is transported to the methanol storage tank, and then the PLC control cabinet displays that the methanol storage tank is full according to the reading of the liquid level gauge, controls the closing of the unloading pump, and then transports the methanol fuel through the liquid outlet, the first feeding pump and the second feeding pump are turned on, and the methanol fuel is transported to the working tank, the PLC control cabinet controls the first feeding pump and the second feeding pump according to the working tank liquid level gauge and flow meter in the working tank to ensure the normal operation of the working tank, and at the same time, the PLC control cabinet is connected with a combustible gas detector and an explosion-proof sound and light alarm, which can provide timely reminders when an accident occurs.

[0035] In summary, the utility model not only solves the problems of long construction period, large floor space, high cost, and complex renovation and expansion of fixed methanol fuel supply stations, but also has strong replicability, flexible application, broad market promotion and application prospects, simple operation, and high safety.

[0036] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A movable skid-mounted methanol gas supply system, comprising a PLC control cabinet (6), a methanol storage tank (1) and a working tank (24), characterized in that: The top of the methanol storage tank (1) is provided with an inspection hole (2), one side of the inspection hole (2) is provided with an oil and gas recovery interface (3), the other side of the inspection hole (2) is provided with a liquid level gauge (5), the liquid level gauge (5) is electrically connected to the PLC control cabinet (6), one side of the liquid level gauge (5) is provided with a mechanical breathing valve (4), the interior of the methanol storage tank (1) is provided with a liquid inlet pipe (15), the liquid inlet pipe (15) is connected to one end of a discharge pump (10), the other end of the discharge pump (10) is connected to a basket filter (11), the basket filter (11) is connected to a quick connector (13), the discharge pump (10) is electrically connected to a pump control box (9), the bottom of the methanol storage tank (1) is provided with a liquid outlet (16), the liquid outlet (16) is connected to a first branch liquid supply pipe (251), the first branch liquid supply pipe (251) is connected to a first feed pump (17), the first feed pump (17) is connected to a first feed pump (18), and the first feed pump (17) is connected to a first feed pump (18). 7) is connected to a check valve (19), a stop valve (18) is provided between the check valve (19) and the first feed pump (17), the liquid outlet (16) is connected to a second branch liquid supply pipe (252), the second branch liquid supply pipe (252) is provided with a stop valve (18), the liquid outlet (16) is connected to a third branch liquid supply pipe (253), the third branch liquid supply pipe (253) is connected to a second feed pump (20), the second feed pump ( The first feed pump (17) is electrically connected to the PLC control cabinet (6), the second feed pump (20) is electrically connected to the PLC control cabinet (6), and the first branch liquid supply pipe (251), the second branch liquid supply pipe (252) and the third branch liquid supply pipe (253) are respectively connected to the main liquid supply pipe (25).

2. The movable skid-mounted methanol gas supply system according to claim 1 is characterized in that: The main liquid supply pipe (25) is connected to the liquid supply port (14), the liquid supply port (14) is arranged at the bottom of the working tank (24), a liquid supply solenoid valve (23) is arranged at the liquid supply port (14), and the liquid supply solenoid valve (23) is electrically connected to the PLC control cabinet (6).

3. The movable skid-mounted methanol gas supply system according to claim 2 is characterized in that: A working tank liquid level meter (21) and a flow meter (22) are provided on the top of the working tank (24); the working tank liquid level meter (21) is connected to the PLC control cabinet (6), and the flow meter (22) is connected to the PLC control cabinet (6).

4. The movable skid-mounted methanol gas supply system according to claim 1 is characterized in that: A ball valve (12) is provided between the discharge pump (10) and the liquid inlet pipe (15).

5. The movable skid-mounted methanol gas supply system according to claim 1 is characterized in that: A ball valve (12) is provided between the basket filter (11) and the quick connector (13).

6. The movable skid-mounted methanol gas supply system according to claim 1 is characterized in that: The first branch liquid supply pipe (251) is provided with a ball valve (12), and the ball valve (12) is located between the liquid outlet (16) and the first feed pump (17).

7. The movable skid-mounted methanol gas supply system according to claim 1 is characterized in that: The third branch liquid supply pipe (253) is provided with a ball valve (12), and the ball valve (12) is located between the liquid outlet (16) and the second feed pump (20).

8. The movable skid-mounted methanol gas supply system according to claim 1 is characterized in that: The PLC control cabinet (6) is electrically connected to the combustible gas detector (7).

9. The movable skid-mounted methanol gas supply system according to claim 1 is characterized in that: The PLC control cabinet (6) is electrically connected to the explosion-proof sound and light alarm (8).

10. The movable skid-mounted methanol gas supply system according to claim 1 is characterized in that: The methanol storage tank (1) is formed by welding.

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