CN106945811A - Air water system peculiar to vessel based on injection drainage - Google Patents

Abstract

The invention relates to a marine air-based water production system based on jet drainage, which is composed of a preheating device, a humidifying device, a condensation device and a jet drainage device. The preheater of the preheating device is equipped with an exhaust pipe of a ship power device. The upper part of the preheater is connected to the lower side of the humidifier through the hot air exhaust pipe, and the lower part is connected to the cold air intake pipe. The upper part of the humidifier of the humidifier is equipped with a spray device, and the spray device is connected to the water supply of the ship's power plant for cooling seawater. The upper part of the humidifier is connected to the upper part of the condenser through the hot and humid air exhaust pipe, the lower part of the humidifier is connected to the drain pipe, the lower part of the condenser of the condensing device is connected to the fresh water discharge pipe, and the side of the lower part is connected to the one-way valve and the air discharge pipe The mixed gas discharge pipe is connected, and the nozzle of the jet drainage device is arranged at the end of the exhaust pipe of the ship's power plant. The invention has compact structure, low operating cost, strong practical value and popularization significance.

Description

Marine Air Water Production System Based on Jet Drainage

technical field

The invention relates to a jet-drainage-based marine air water-making system, which does not require additional power and energy for operation, and belongs to the technical field of jet-drainage.

Background technique

Fresh water is one of the basic materials for the production and development of human society. The lack of fresh water will directly affect people's survival and health. Decades ago, people realized this problem and developed a lot of equipment for producing fresh water, some of which were located on the coast, and some were located on fixed towers off the coast, but these were all large in scale. It is suitable for industrial use, but for large and small ships drifting on the sea for a long time, these devices are not suitable, and fresh water needs to be provided by the outside world, which cannot be guaranteed in time. Therefore, it is very practical for these ships to develop a jet drainage based marine air water system.

Contents of the invention

Aiming at the shortage of fresh water on board, the present invention designs a marine air water production system based on jet drainage. This system can produce fresh water without power and energy. It is simple, practical, low in cost and has strong practical value. It has promotional significance.

In order to achieve the above object, the technical solution of the present invention is: a marine air water production system based on jet drainage, which is composed of a preheating device, a humidifying device, a condensation device and a jet drainage device, the preheating device includes a preheater, A cold air intake duct, a preheated air exhaust duct and a ship power unit exhaust duct; the humidifying device includes a humidifier, a water supply duct for cooling seawater of the ship power unit, an exhaust duct for hot and humid air, a drainage duct and a spraying device; The condensing device includes a condenser, an air discharge pipe, a fresh water discharge pipe and a one-way valve; the jet drainage device includes a nozzle and a gas mixing exhaust pipe; The upper part of the heater is connected to the lower side of the humidifier through the preheated air exhaust pipe, and the lower part is connected to the cold air intake pipe. The upper part of the humidifier is equipped with a spray device, and the spray device is connected to the water supply pipe for cooling the seawater of the ship's power plant. The upper part of the humidifier is connected to the upper part of the condenser through the hot and humid air exhaust pipe, the lower part of the humidifier is connected to the drainage pipe, the lower part of the condenser is connected to the fresh water discharge pipe, and the side of the lower part is connected to the mixed gas discharge pipe through a one-way valve and an air discharge pipe. The nozzle is arranged at the end of the exhaust pipe of the marine power plant.

Spray devices are evenly distributed in the humidifier, and fillers for increasing the gas-liquid contact area are placed in the humidifier. The types of the fillers are PVC fillers, oblique staggered fillers, stepped trapezoidal ramp fillers, and differential sine wave fillers. Any of packing, point wave packing, hexagonal honeycomb packing, two-way wave packing and oblique wave packing.

A U-shaped pipe is respectively arranged in the water supply pipeline and the drainage pipeline of the marine power plant for cooling seawater, which act as liquid seals and prevent the gas in the humidifier from passing through the water supply pipeline and drainage pipeline of the marine power plant for cooling seawater. leakage.

Fins are provided on the outer side of the part of the exhaust pipe of the ship power device passing through the preheater, which is used to improve the heat exchange efficiency of the waste heat of the exhaust gas of the ship power device for preheating the cold air.

The condenser is provided with several groups of metal circular tubes, which are connected to the outer wall of the condenser, so that the temperature of the circular tubes is close to the temperature of the outer wall, thereby enhancing the condensation effect; the circular tubes are also provided with drop-shaped fins, The condensed water of the heated and humidified air can be concentrated at the bottom of the condenser, so that the collected fresh water can be discharged into the fresh water storage device on the ship through the fresh water discharge pipe; when the condenser is in operation, it is placed in the seawater at the stern of the ship , so that the temperature of its outer wall is consistent with that of seawater.

The weight of the flip cover of the one-way valve is adapted to the pressure generated by the jet drainage, so as to ensure that the condensed air can pass through the one-way valve smoothly and prevent the gas in the air discharge pipe from flowing back into the condenser, thereby polluting the condensation fresh water collected in the tank.

The diameter of the nozzle The diameter of the exhaust pipe mixed with gas Satisfy ,and The size depends on the exhaust pressure of the ship's power plant.

Beneficial effects of the present invention:

The present invention relates to a jet drainage-based marine air water production system. The appearance of this invention can effectively solve the problem of the shortage of fresh water during the voyage of sea ships. At the same time, this invention can produce fresh water without power and energy, which is simple and practical , low cost, strong practical value and popularization significance.

Description of drawings

Fig. 1 is the structural representation of the marine air water system based on jet drainage of the present invention;

Figure 2 is a schematic diagram of the distribution of circular tubes and fins;

Fig. 3 is a schematic diagram of a drop-shaped fin;

Fig. 4 is a schematic diagram of the structure of a one-way valve;

Figure 5 is an enlarged view of the jet drainage device.

detailed description

Further detailed description will be given below in conjunction with the accompanying drawings.

As shown in Figure 1, the marine air water system based on jet drainage of the present invention is composed of a preheating device, a humidifying device, a condensing device and a jet drainage device, the preheating device includes a preheater 1, and the cold air enters Gas pipeline 2, preheated air exhaust pipeline 3 and ship power plant exhaust pipeline 4. The humidifying device includes a humidifier 5 , a water supply pipeline 6 for cooling seawater of the marine power plant, a hot and humid air exhaust pipeline 7 , a drainage pipeline 8 and a spraying device 9 . The condensing device includes a condenser 10 , an air discharge pipe 11 , a fresh water discharge pipe 12 and a one-way valve 13 . The jet drainage device includes a nozzle 14 and a gas mixing exhaust pipe 15 . The ship power plant exhaust duct 4 passes through the preheater 1, and the cold air intake duct 2 and the preheated air exhaust duct 3 are located below and above the preheater 1, respectively. The humidifying device and the preheating device are connected to the lower side of the humidifier 5 through the preheating air exhaust pipe 3, and the water supply pipe 6 for cooling the seawater of the marine power plant is above the humidifier 5 and the spray device 9 in the humidifier 5 Connected, the hot and humid air exhaust pipe 7 is located above the side of the humidifier 5 , while the drain pipe 8 is located below the humidifier 5 . There is a U-shaped pipe in the water supply pipe 6 and the drainage pipe 8 for cooling seawater of the marine power plant, which acts as a liquid seal and prevents the gas in the humidifier 5 from overflowing from these two pipes. The condensing device and the humidifying device are connected to the top of the condenser 10 through the hot and humid air exhaust pipe 7, the air discharge pipe 11 and the fresh water discharge pipe 12 are respectively located under and directly below the side of the condenser 10, and the one-way valve 13 is installed on the air discharge pipe 11 on. The nozzle 14 in the jet drainage device exists at the end of the exhaust pipe 4 of the ship's power plant, and the mixed gas discharge pipe 15 is connected to the air exhaust pipe 11 for mixing the condensed air with the exhaust gas of the ship's power plant discharge.

As shown in Figure 2 and Figure 3, there are several groups of round tubes in the condenser 10, and the round tubes are connected with the outer wall of the condenser 10, thereby enhancing the condensation effect; there are also drop-shaped fins on the round tubes, such a structure can make The condensed water collects at the bottom of the condenser 10 so that the collected fresh water is discharged into the fresh water storage device on board through the fresh water discharge pipe 12 .

As shown in Figure 4, the gas enters the valve body from the right side, which generates pressure on the rotatable flip cover 16, and the flip cover 16 rotates upwards, so that the one-way valve 13 is in an open state; Rotate down, so that the one-way valve 13 is in the closed state, thereby preventing the tail gas of the marine power plant from entering the interior of the device. The top cover of the one-way valve can be opened for inspection and repair of the inside of the one-way valve.

As shown in Figure 5, the diameter of the nozzle 14 of the jet drainage device The diameter of the exhaust pipe 15 mixed with the gas Satisfy ,and The size depends on the exhaust pressure of the ship's power plant.

The material of the preheater 1 should be firm and reliable, and have certain thermal insulation properties. The material of the humidifier 5 should be solid, reliable and corrosion-resistant, so that the damage of the seawater to the humidifier can be reduced to a relatively low level. Cold air intake pipe 2, preheated air exhaust pipe 3, water supply pipe 6 for ship power plant cooling sea water, hot and humid air exhaust pipe 7, drainage pipe 8, air discharge pipe 11, fresh water discharge pipe 12 and gas mixed exhaust The material of pipeline 15 should be solid and reliable, and corrosion-resistant simultaneously, can be immersed in seawater for a long time and work without needing to change. Ship power unit exhaust pipe 4 will be strong and reliable, can use for a long time and does not need to change. One-way valve 13 should choose sensitive and reliable type. The jet drainage device should be stable and reliable. The material of the condensing device 10 should be firm and reliable, and corrosion-resistant, so that it will not be damaged under long-term immersion in seawater. The fins in the system should choose materials with better heat transfer effect.

Working process of the present invention is as follows:

Under the action of the jet drainage device, the exhaust gas of the ship power unit makes the air enter the system, and the air entering the system is first heated by the waste heat of the exhaust gas of the ship power unit in the preheating device, so that the cold air becomes hot air, and then enters the humidification device In the process, the humidification device fully contacts the seawater after cooling the ship's power plant, so that the hot air becomes hot and humid air, and the hot and humid air enters the condensing device through the pipeline. Under the action of the condensing device, the hot and humid air condenses into fresh water. Under the action, it is concentrated at the bottom of the condensing device, and then the collected fresh water is discharged into the fresh water storage device on the ship through the drain pipe of the condensing device, and the remaining air is mixed with the exhaust gas of the ship's power plant through the check valve and discharged out of the system.

Claims (7)

1. A marine air water production system based on jet drainage, which is composed of a preheating device, a humidifying device, a condensation device and a jet drainage device, characterized in that: the preheating device includes a preheater (1), and the cold air enters Air pipe (2), preheated air exhaust pipe (3) and ship power plant exhaust pipe (4); the humidification device includes a humidifier (5), ship power plant cooling sea water supply pipe (6), damp heat Air exhaust pipe (7), drain pipe (8) and spraying device (9); said condensing device includes condenser (10), air discharge pipe (11), fresh water discharge pipe (12) and one-way valve ( 13); the jet drainage device includes a nozzle (14) and a gas mixing exhaust pipe (15); the preheater (1) is pierced with a ship power plant exhaust pipe (4), and the preheater (1) The upper part is connected to the lower side of the humidifier (5) through the preheated air exhaust pipe (3), and the lower part is connected to the cold air intake pipe (2). The upper part of the humidifier (5) is equipped with a spray device (9). The shower device (9) is connected to the water supply pipe (6) of the ship's power plant for cooling seawater, and the upper part of the humidifier (5) is connected to the upper part of the condenser (10) through the hot and humid air exhaust pipe (7), and the humidifier (5) The lower part is connected to the drainage pipe (8), the lower part of the condenser (10) is connected to the fresh water discharge pipe (12), and the side of the lower part is connected to the mixed gas discharge pipe (15) through the check valve (13) and the air discharge pipe (11). The nozzle (14) is arranged at the end of the exhaust pipe (4) of the ship's power plant. 2. The marine air water production system based on jet drainage according to claim 1, characterized in that: the spray device (9) is evenly distributed in the humidifier (5), and there is placed in the humidifier (5) for increasing Gas-liquid contact area packing, the types of packing are PVC packing, staggered packing, stepped trapezoidal ramp packing, differential sine wave packing, point wave packing, hexagonal honeycomb packing, two-way wave packing and oblique folding wave packing any of the. 3. The marine air water production system based on jet drainage according to claim 1, characterized in that: the water supply pipeline (6) and the drainage pipeline (8) of the marine power plant for cooling seawater are respectively provided with a U-shaped pipe , which acts as a liquid seal to prevent the gas in the humidifier (5) from leaking from the water supply pipe (6) and the drainage pipe (8) for cooling seawater of the marine power plant. 4. The marine air water production system based on jet drainage according to claim 1, characterized in that: the part of the exhaust pipe (4) of the ship power plant passing through the preheater (1) is provided with ribs on the outside of the pipe The fins are used to improve the heat exchange efficiency of the waste heat of the ship's power plant exhaust to preheat the cold air. 5. The marine air water system based on jet drainage according to claim 1, characterized in that: the condenser (10) is provided with several groups of metal round tubes, and the round tubes are connected to the outer wall of the condenser (10) , so that the temperature of the round tube is close to the temperature of the outer wall, thereby enhancing the condensation effect; the round tube is also provided with drop-shaped fins, which can allow the condensed water of the heated and humidified air to gather at the bottom of the condenser (10), thereby passing The fresh water discharge pipe (12) discharges the collected fresh water into the fresh water storage device on board; when the condenser (10) is in operation, it is placed in the sea water at the stern of the ship to keep the temperature of its outer wall consistent with the sea water temperature. 6. The marine air water production system based on jet drainage according to claim 1, characterized in that: the weight of the flap (16) of the one-way valve (13) is adapted to the pressure generated by jet drainage to ensure condensation The final air can smoothly pass through the one-way valve (13) and prevent the gas in the air discharge pipe (11) from flowing back into the condenser (10), and pollute the fresh water collected in the condenser (10). 7. The jet drainage-based marine air water production system according to claim 1, characterized in that: the diameter of the nozzle (14) Diameter of exhaust pipe (15) mixed with gas Satisfy ,and The size depends on the exhaust pressure of the ship's power plant.