Device for improving production efficiency by utilizing waste heat of tail gas of ship based on marine pulping

Abstract

The utility model relates to the technical field of ship tail gas utilization, in particular to a device for improving production efficiency by utilizing ship tail gas waste heat based on ship pulping. Comprising a tail gas emission mechanism which is installed on a ship body. The device further comprises a heat exchange mechanism and a pulping reactor. The heat exchange mechanism is used for heating flowing water through heat generated when tail gas is exhausted so as to be matched with the pulping reactor to complete pulping work. The pulping reactor is mounted on one side of the heat exchange mechanism and used for dissolving a waste paper box into paper pulp; by means of a heat exchanger in the heat exchange mechanism, the temperature of production water can be increased to 50-60 DEG C through heat in tail gas, dependence on electric energy or fuel can be reduced by heating through waste heat of the tail gas, and therefore production efficiency is improved, and energy consumption is reduced. Meanwhile, a tail gas treatment device is further arranged in the tail gas emission mechanism, so that tail gas can enter a filtering system after heat exchange, harmful substances are removed, and the influence of emission on the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ship exhaust gas utilization, in particular to a device for improving production efficiency by utilizing waste heat of ship exhaust gas based on ship pulping. Background Art

[0002] Ship exhaust refers to the waste gas produced by a ship's engine when it burns fuel (typically heavy fuel oil or diesel) during operation. This exhaust contains a variety of pollutants, including carbon dioxide, sulfur oxides, nitrogen oxides, particulate matter, and some volatile organic compounds. These emissions not only pollute the environment but also have negative impacts on human health and ecosystems. Furthermore, the exhaust process is often accompanied by the dissipation of a large amount of heat, which wastes a significant amount of energy if directly discharged.

[0003] Therefore, the present invention provides a device for improving production efficiency based on ship pulping by utilizing waste heat from ship exhaust to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing exhaust gas contains a variety of pollutants, including carbon dioxide, sulfur oxides, nitrogen oxides, particulate matter, and some volatile organic compounds. These emissions not only pollute the environment but may also have negative impacts on human health and ecosystems. Furthermore, the exhaust gas process is usually accompanied by a large amount of heat discharge, which wastes a lot of heat energy when directly discharged.

[0005] The utility model provides the following technical solutions: a device for improving production efficiency based on ship pulping by utilizing waste heat from ship exhaust, comprising an exhaust gas emission mechanism installed on the hull; a heat exchange mechanism and a pulping reactor, wherein the heat exchange mechanism is used to utilize the heat from exhaust gas emission to heat flowing water and thereby cooperate with the pulping reactor to complete the pulping work; the pulping reactor is installed on one side of the heat exchange mechanism, and is used to dissolve waste paper boxes into pulp.

[0006] Preferably, the heat exchange mechanism includes an exhaust gas heat exchanger, a hot water reservoir and a circulation pump. The exhaust gas heat exchanger is installed on the exhaust gas emission mechanism. One side of the exhaust gas heat exchanger is connected to the hot water reservoir through a water pipe, one side of the hot water reservoir is connected to a circulation pump through a water pipe, the other side of the circulation pump is connected to a pulping reactor through a water pipe, and the other side of the pulping reactor is connected to the exhaust gas heat exchanger through a water pipe.

[0007] Preferably, the exhaust gas heat exchanger includes a fixed shell, a spiral guide tube and an insulation plate. The fixed shell is fixed on the exhaust gas emission mechanism. The spiral guide tube is installed on the exhaust gas emission mechanism. The insulation plate is installed in the gap between the spiral guide tube and the fixed shell.

[0008] Preferably, the pulping reactor, the hot water storage tank and the tail gas heat exchanger form a closed loop circulation through a water pipe.

[0009] Preferably, a temperature sensor is installed on the water pipe in the outlet direction of the exhaust gas heat exchanger.

[0010] Preferably, a pressure sensor and a pressure relief valve are installed on the water pipe in the outlet direction of the exhaust gas heat exchanger.

[0011] Preferably, an exhaust gas filtering device is installed on the exhaust gas emission mechanism.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. This utility model incorporates a heat exchange mechanism and a pulping reactor. The heat exchanger in the heat exchange mechanism utilizes the heat from the exhaust gas to raise the temperature of the production water to 50-60 degrees Celsius. At this temperature, the efficiency of soaking and dissolving waste paper boxes can be increased by 8%-10%. Utilizing waste heat from the exhaust gas for heating reduces reliance on electricity or fuel, thereby improving production efficiency and reducing energy consumption. Furthermore, an exhaust gas treatment device is incorporated into the exhaust emission mechanism, allowing the exhaust gas, after heat exchange, to enter a filtration system to remove harmful substances and minimize the environmental impact of emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the process of the utility model;

[0016] Figure 2 It is an overall schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the interior of the exhaust gas heat exchange device of the present utility model;

[0018] Figure 4 This is a schematic diagram of the installation positions of the temperature sensor, pressure sensor and pressure relief valve of the present invention.

[0019] In the figure: 1. Exhaust gas emission mechanism; 2. Heat exchange mechanism; 21. Exhaust gas heat exchanger; 211. Temperature sensor; 212. Pressure sensor; 213. Pressure relief valve; 214. Fixed shell; 215. Spiral guide tube; 216. Insulation plate; 22. Hot water storage tank; 23. Circulation pump; 3. Pulping reactor; 4. Exhaust gas filtration device; 5. Water pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the utility model for protection, but merely represents some of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back" and the like indicate positions or locations based on the positions or locations shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. Such terms are used solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The disclosed embodiments aim to address the problem of existing exhaust gases containing a variety of pollutants, including carbon dioxide, sulfur oxides, nitrogen oxides, particulate matter, and some volatile organic compounds. These emissions not only pollute the environment but may also have negative impacts on human health and ecosystems. Furthermore, the exhaust gas emission process is often accompanied by a large amount of heat discharge, and the direct discharge of this heat wastes a large amount of thermal energy. In view of this, the disclosed embodiments propose a device for improving production efficiency based on ship pulping by utilizing waste heat from ship exhaust. By providing a heat exchange mechanism and a pulping reactor, the heat exchanger in the heat exchange mechanism can heat the production water to 50-60 degrees Celsius. At this temperature, the efficiency of soaking and dissolving waste paper boxes can be increased by 8%-10%. Using waste heat from exhaust gas for heating can reduce dependence on electricity or fuel, thereby improving production efficiency and reducing energy consumption. An exhaust gas treatment device is also provided within the exhaust gas emission mechanism, allowing the exhaust gas to enter a filtration system after heat exchange to remove harmful substances, thereby reducing the impact of emissions on the environment.

[0025] like Figures 1 to 4 As shown, a device for improving production efficiency by utilizing waste heat from ship exhaust gas based on ship pulping includes an exhaust gas emission mechanism 1, which is installed on the hull; a heat exchange mechanism 2 and a pulping reactor 3, wherein the heat exchange mechanism 2 is used to utilize the heat from the exhaust gas emission to heat the flowing water and thereby cooperate with the pulping reactor 3 to complete the pulping work; the pulping reactor 3 is installed on one side of the heat exchange mechanism 2 and is used to dissolve waste paper boxes into pulp;

[0026] By installing heat exchange mechanism 2 and pulping reactor 3, the heat exchanger in heat exchange mechanism 2 can use the heat in the exhaust gas to raise the temperature of production water to 50-60 degrees Celsius. At this temperature, the efficiency of soaking and dissolving waste paper boxes can be increased by 8%-10%. Using waste heat from the exhaust gas for heating can reduce dependence on electricity or fuel, thereby improving production efficiency and reducing energy consumption. At the same time, an exhaust gas treatment device is also installed in the exhaust gas emission mechanism 1, so that the exhaust gas can enter the filtration system after heat exchange to remove harmful substances and reduce the impact of emissions on the environment.

[0027] like Figure 1 and Figure 2As shown, the heat exchange mechanism 2 includes a tail gas heat exchanger 21, a hot water reservoir 22 and a circulation pump 23. The tail gas heat exchanger 21 is installed on the tail gas emission mechanism 1, and the tail gas heat exchanger 21 is used to use the heat emitted by the tail gas to heat the water in the water pipe 5; one side of the tail gas heat exchanger 21 is connected to the hot water reservoir 22 through the water pipe 5, and the hot water reservoir 22 is used to store the heated water; one side of the hot water reservoir 22 is connected to one side of the circulation pump 23 through the water pipe 5, and the circulation pump 23 is used to drive the water flow in the tail gas heat exchanger 21 and the pulping reactor 3; the other side of the circulation pump 23 is connected to the pulping reactor 3 through the water pipe 5, and the other side of the pulping reactor 3 is connected to the tail gas heat exchanger 21 through the water pipe 5.

[0028] During operation, a large amount of heat is released during the exhaust gas discharge process of the exhaust gas discharge mechanism 1. Therefore, the exhaust gas heat exchanger 21 exchanges heat between the heat discharged by the exhaust gas discharge mechanism 1 and the water flowing therein, thereby heating the water flow. Then, the water flows into the hot water reservoir 22 under the drive of the circulation pump 23. When the pulping reactor 3 is in operation, the circulation pump 23 flows the heated water flow in the hot water reservoir 22 into the pulping reactor 3, thereby enabling the pulping reactor 3 to better pulp.

[0029] By adopting the above-mentioned heat exchange mechanism 2, a large amount of heat released when the exhaust gas is discharged can be utilized, thereby avoiding energy waste. At the same time, the heat is used to heat the production water to 50-60 degrees. At this temperature, the efficiency of soaking and dissolving waste cardboard boxes can be increased by 8%-10%, thereby reducing dependence on electricity or fuel, thereby improving production efficiency and reducing energy consumption.

[0030] like Figure 3 As shown, the exhaust gas heat exchanger 21 includes a fixed shell 214, a spiral guide tube 215 and an insulation plate 216. The fixed shell 214 is fixed on the exhaust gas emission mechanism 1. The spiral guide tube 215 is installed on the exhaust gas emission mechanism 1. The insulation plate 216 is installed in the gap between the spiral guide tube 215 and the fixed shell 214.

[0031] The fixing shell 214 is used to fix the exhaust gas heat exchanger 21 on the exhaust gas emission mechanism 1. The spiral guide tube 215 on the exhaust gas emission mechanism 1 is used to supply water flow and then exchange heat with the exhaust gas emission mechanism 1, so that the water temperature in the spiral guide tube 215 increases. The insulation plate 216 is used to improve the heat transfer efficiency and prevent heat loss.

[0032] like Figure 2As shown, the pulping reactor 3, the hot water storage tank and the tail gas heat exchanger 21 form a closed loop through the water pipe 5; the pulping reactor 3, the hot water storage tank and the tail gas heat exchanger 21 are connected to form a closed loop through the water pipe 5, thereby realizing the recycling of the internal water flow, that is, the tail gas heat exchanger 21 heats the production water to a specified temperature and then flows into the hot water storage tank 22, and continues to enter the tail gas heat exchanger 21 for heat exchange after the pulping reactor 3 consumes the heat of the water.

[0033] like Figure 4 As shown, a temperature sensor 211 is installed on the water pipe 5 in the outlet direction of the exhaust gas heat exchanger 21. The temperature sensor 211 is used to detect the temperature of the water flow. When the temperature is too high, the power of the circulation pump 23 can be adjusted to increase the flow rate of the water flow, thereby reducing the heat exchange time and lowering the water flow temperature; when the water flow temperature is too low, the power of the circulation pump 23 can be adjusted to slow down the flow rate of the water flow, thereby increasing the heat exchange time and raising the water flow temperature.

[0034] like Figure 4 As shown, a pressure sensor 212 and a pressure relief valve 213 are installed on the water pipe 5 in the outlet direction of the exhaust gas heat exchanger 21. The pressure sensor 212 is used to detect the pressure in the water pipe 5. When the pressure is too high, the pressure in the water pipe 5 can be quickly relieved through the pressure relief valve 213, thereby ensuring the safe operation of the entire device.

[0035] like Figure 2 As shown, the exhaust gas emission mechanism 1 is equipped with an exhaust gas filter device 4, which is used to allow the exhaust gas to enter the filtration system after heat exchange, remove harmful substances, and reduce the impact of the exhaust on the environment.

[0036] The overall working process is that a large amount of heat will be released during the emission process of the exhaust gas emission mechanism 1, so the exhaust gas heat exchanger 21 exchanges heat between the heat emitted by the exhaust gas emission mechanism 1 and the water flowing inside it, thereby heating the water flow, and then flows to the hot water storage tank 22 under the drive of the circulation pump 23. When the pulping reactor 3 is running, the circulation pump 23 flows the heated water in the hot water storage tank 22 into the pulping reactor 3, thereby enabling the pulping reactor 3 to better pulp; at the same time, the exhaust gas heat exchanger 21 heats the production water to a specified temperature and then flows into the hot water storage tank 22, and after the pulping reactor 3 consumes the heat of the water, it continues to enter the exhaust gas heat exchanger 21 for heat exchange, thereby realizing the recycling of the water flow.

[0037] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for improving production efficiency based on ship pulping by utilizing waste heat from ship exhaust, comprising an exhaust gas discharge mechanism (1), wherein the exhaust gas discharge mechanism (1) is mounted on the ship hull; characterized in that: It also includes a heat exchange mechanism (2) and a pulping reactor (3). The heat exchange mechanism (2) is used to utilize the heat generated during exhaust gas discharge to heat the flowing water, thereby cooperating with the pulping reactor (3) to complete the pulping work. The pulping reactor (3) is installed on one side of the heat exchange mechanism (2). The pulping reactor (3) is used to dissolve the waste paper box into pulp.

2. The device for improving production efficiency by utilizing waste heat from ship exhaust gas in ship pulping according to claim 1, characterized in that: The heat exchange mechanism (2) comprises an exhaust gas heat exchanger (21), a heat water reservoir (22) and a circulation pump (23). The exhaust gas heat exchanger (21) is mounted on the exhaust gas discharge mechanism (1). One side of the exhaust gas heat exchanger (21) is connected to the heat water reservoir (22) via a water pipe (5). One side of the heat water reservoir (22) is connected to a circulation pump via a water pipe (5). The other side of the circulation pump (23) is connected to a pulping reactor (3) via a water pipe (5). The other side of the pulping reactor (3) is connected to the exhaust gas heat exchanger (21) via a water pipe (5).

3. The device for improving production efficiency by utilizing waste heat from ship exhaust gas in ship pulping according to claim 2, characterized in that: The exhaust gas heat exchanger (21) comprises a fixed shell (214), a spiral guide tube (215) and a heat preservation plate (216); the fixed shell (214) is fixed on the exhaust gas discharge mechanism (1); the spiral guide tube (215) is installed on the exhaust gas discharge mechanism (1); and the heat preservation plate (216) is installed in the gap between the spiral guide tube (215) and the fixed shell (214).

4. The device for improving production efficiency by utilizing waste heat from ship exhaust gas in ship pulping according to claim 3, characterized in that: The pulping reactor (3), the hot water storage (22) and the tail gas heat exchanger (21) form a closed loop circulation through the water pipe (5).

5. The device for improving production efficiency by utilizing waste heat from ship exhaust gas in ship pulping according to claim 4, characterized in that: A temperature sensor (211) is installed on the water pipe (5) in the outlet direction of the exhaust gas heat exchanger (21).

6. The device for improving production efficiency by utilizing waste heat from ship exhaust gas in ship pulping according to claim 5, characterized in that: A pressure sensor (212) and a pressure relief valve (213) are installed on the water pipe (5) in the outlet direction of the exhaust gas heat exchanger (21).

7. The device for improving production efficiency by utilizing waste heat from ship exhaust gas in ship pulping according to claim 6, characterized in that: An exhaust gas filtering device (4) is installed on the exhaust gas emission mechanism (1).

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