Device capable of reducing temperature of industrial gas

Abstract

The utility model relates to the technical field of gasification furnace gas treatment, and discloses a device capable of reducing the temperature of industrial gas, which comprises a steel structure, the outer side of the steel structure is fixedly connected with a gas inlet pipeline, and the inside of the steel structure is fixedly connected with a plurality of heat exchangers with special structures. The outer side of the steel structure is fixedly connected with a plurality of cooling water tank chambers, one side of the steel structure is fixedly connected with a coal gas outlet pipeline, one side of the steel structure is fixedly connected with a tank chamber connecting pipe, and the interior of the steel structure is fixedly connected with a manhole; the outer sides of the multiple cooling water tank chambers are fixedly connected with an inlet and outlet mechanism used for allowing objects or liquid to enter and exit, and the inlet and outlet mechanism comprises a cooling water outlet. The utility model has the advantages of compact process connection, production efficiency improvement, high efficiency, energy conservation, energy consumption reduction, resource utilization rate improvement, convenient maintenance, fault risk reduction, equipment service life prolonging and maintenance cost prolonging.

Description

TECHNICAL FIELD

[0001] The utility model relates to gasification furnace coal gas processing technical field especially relates to a device that can reduce industrial coal gas temperature. BACKGROUND

[0002] Industrial coal gas is obtained by dry distillation and gasification of solid fuels such as coal and coke, and has diverse components, is applied to industrial heating, power generation, chemical raw materials and domestic gas fields, has the benefits of high energy utilization efficiency, relatively low cost, reducing environmental pollution, wide and flexible use, etc., in industrial production, the device for reducing the temperature of industrial coal gas, the reasons cover aspects such as ensuring the safe operation of equipment (preventing damage to equipment materials, avoiding the failure of sealing elements), meeting process requirements (adapting to subsequent processing procedures, improving product quality), recycling resources and energy saving (recycling condensate, improving energy utilization efficiency) and reducing environmental pollution (reducing harmful gas emissions, meeting environmental protection regulations).

[0003] The device for reducing the temperature of industrial coal gas is generally composed of a heat exchange part, a coal gas flow part and a condensate treatment part, and is based on the principle of heat exchange, directly or indirectly contacts heat exchange, so that high-temperature coal gas at 180-200 DEG C is cooled to 40-50 DEG C by heat transfer with cooling medium (such as water) at about 32 DEG C in the device, the cooling medium is recycled, the condensate is collected, treated and recycled, and the temperature sensor is used for monitoring and controlling the device to ensure that the temperature of the coal gas meets the requirements of the subsequent process, at present, the coal gas from the bag-type dust collector at the tail of the domestic gasification furnace is not ideal after heat exchange by the conventional heat exchanger, the temperature is generally high, some even reach 100 DEG C, which cannot meet the requirements of the desulfurization process, affects the desulfurization effect in the later period and the service life of the equipment.

[0004] The temperature of the existing device for reducing the temperature of industrial coal gas is generally high, some even reach 100 DEG C, which cannot meet the requirements of the desulfurization process, affects the desulfurization effect in the later period and the service life of the equipment, most of the desulfurizing agents have the best activity in a specific temperature range, and the structure of the active center of the desulfurizing agent will change when the temperature is too high, which reduces the reaction capacity of the desulfurizing agent with the sulfur components in the coal gas, leads to the decrease of the desulfurization efficiency, cannot effectively remove the sulfur impurities in the coal gas, makes the sulfur content of the coal gas entering the subsequent process exceed the standard, the high temperature changes the balance state of the desulfurization reaction, moves the reaction to the direction unfavorable to desulfurization, further reduces the desulfurization effect, and affects the quality of the final product or causes the damage of the subsequent production equipment due to sulfur corrosion, therefore, the device for reducing the temperature of industrial coal gas is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortage, the utility model provides a device that can reduce industrial coal gas temperature, aims at improving the problem that the device in prior art is generally high in temperature when using, some even reach 100 DEG C, can not satisfy the desulfurization process demand, influence the desulfurization effect in later period, influence equipment service life.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A device that can reduce industrial coal gas temperature, including steel structure, the outside fixed coupling of steel structure has the coal gas inlet pipeline, the inside fixed coupling of steel structure has a plurality of special structure heat exchanger, the outside fixed coupling of steel structure has a plurality of cooling water tank chamber, the side fixed coupling of steel structure has the coal gas outlet pipeline, the side fixed coupling of steel structure has the tank chamber connecting pipe, the inside fixed coupling of steel structure has the manhole, the outside fixed coupling of a plurality of cooling water tank chamber has the in-out mechanism for the object or liquid in-out for object or liquid in-out;

[0008] As the further description of the above technical scheme:

[0009] The in-out mechanism includes cooling water outlet, the outside fixed coupling of cooling water outlet is in the outside of one of cooling water tank chamber, and the outside fixed coupling of another cooling water tank chamber has cooling water inlet;

[0010] As the further description of the above technical scheme:

[0011] The outside fixed coupling of coal gas inlet pipeline has coal gas inlet, and the inside fixed coupling of coal gas outlet pipeline has coal gas outlet;

[0012] As the further description of the above technical scheme:

[0013] The outside fixed coupling of steel structure has condensate outlet, and the condensate outlet can make condensate discharge from its inside, avoid remaining too much in the device, make the device fail.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses a can reduce industrial coal gas temperature's device's three -dimensional schematic view is provided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A kind of can reduce industrial coal gas temperature's device's three -dimensional schematic view is provided.

[0017] LEGEND:

[0018] 1, coal gas inlet pipeline;2, cooling water tank chamber;3, special structure heat exchanger;4, tank chamber connecting pipe;5, manhole;6, steel structure;7, coal gas outlet pipeline;N1, cooling water outlet;N2, cooling water inlet;N3, coal gas inlet;N4, coal gas outlet;N5, condensate outlet. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] Referring to Figure 1 The utility model provides an embodiment: a kind of can reduce industrial coal gas temperature's device, including steel structure 6, steel structure 6 has strong supporting capacity, can stably bear the weight of each part of device, ensure that the whole device keeps stable during operation, the outside of the steel structure 6 is fixedly connected with condensate outlet N5, condensate outlet N5 position design is reasonable, it is convenient for condensate to discharge smoothly, effectively avoid because condensate is stored in device in large quantity, to prevent such as equipment corrosion, operating efficiency reduces and so on failure, ensure that device can continue to operate stably.

[0021] The outer side of the steel structure 6 is fixedly connected with a gas inlet pipeline 1, and the layout of the gas inlet pipeline 1 is beneficial to the smooth entry of high-temperature gas into the device, and prepares for the subsequent cooling treatment. The outer side of the gas inlet pipeline 1 is fixedly connected with a gas inlet N3, and the design of the gas inlet N3 enables the gas to accurately and accurately enter the special structure heat exchanger 3, and ensures the sealing of the connection to prevent gas leakage.

[0022] The inside of the steel structure 6 is fixedly connected with a plurality of special structure heat exchangers 3, and the special structure heat exchangers 3 realize efficient heat exchange in a unique structure, utilize the principle of counterflow heat exchange, and enable the gas and the cooling water to fully exchange heat, so that the temperature of the gas is quickly and effectively reduced, and the requirement of the subsequent desulfurization process on the temperature of the gas is met. The outer side of the steel structure 6 is fixedly connected with a plurality of cooling water tank chambers 2, and the cooling water tank chambers 2 play a role in storing and preliminarily adjusting the cooling water, and ensure that the temperature and flow of the cooling water entering the special structure heat exchanger 3 are relatively stable, thereby providing protection for efficient heat exchange.

[0023] One side of the steel structure 6 is fixedly connected with a gas outlet pipeline 7, and the gas outlet pipeline 7 stably transports the gas subjected to the cooling treatment to the subsequent desulfurization process, thereby ensuring the coherence of the production process. The inside of the gas outlet pipeline 7 is fixedly connected with a gas outlet N4, and the gas outlet N4 ensures that the gas subjected to the cooling treatment can flow out smoothly, and is tightly connected with the pipeline to prevent leakage of the gas during the transportation process.

[0024] One side of the steel structure 6 is fixedly connected with a tank chamber connecting pipe 4, and the tank chamber connecting pipe 4 connects the cooling water tank chambers 2, so that the cooling water circulates in the tank chamber connecting pipe 4, thereby further improving the utilization rate of the cooling water and the overall cooling effect. The inside of the steel structure 6 is fixedly connected with a manhole 5, and the manhole 5 is provided to facilitate the workers to enter the inside of the device for maintenance and repair, so that potential problems can be found and solved in time, and the long-term stable operation of the device is ensured.

[0025] The outer side of each of the cooling water tank chambers 2 is fixedly connected with an inlet and outlet mechanism for the inlet and outlet of objects or liquids. The inlet and outlet mechanism comprises a cooling water outlet N1, which is accurately arranged on the outer side of one of the cooling water tank chambers 2, so that the cooling water subjected to heat absorption can flow out, thereby providing an outlet for the recycling of the cooling water. The outer side of another cooling water tank chamber 2 is fixedly connected with a cooling water inlet N2, and the cooling water inlet N2 enables the low-temperature cooling water to smoothly enter the cooling water tank chamber 2, thereby providing a low-temperature heat source for the subsequent heat exchange with the high-temperature gas.

[0026] Working principle: coal gas enters the special structure heat exchanger 3 through low temperature coal gas inlet pipeline 1, after heat exchange and cooling, it is connected with desulfurization inlet pipeline through coal gas outlet N3, the condensed liquid condensed by coal gas cooling is connected with ammonia distillation process through condensed liquid outlet N5 connecting pipeline, cooling water inlet pipeline is connected with cooling water inlet N2 to enter cooling water tank chamber 2, then enters the special structure heat exchanger 3 to carry out countercurrent heat exchange, cooling water tank chamber 2 is connected by chamber connecting pipe 4, finally cooling water outlet N1 is connected with cooling water return pipeline, the heat exchanger is arranged in vertical type, all equipment is supported by steel structure 6, and manhole 5 is installed between multiple heat exchangers, so that maintenance is facilitated.

[0027] Specifically, the temperature of coal gas in coal gas inlet pipeline 1 is 180-200 DEG C, the gas flow rate in the cooler is 4.5-18 m / s, the pressure is 3-10.0 kpa, the temperature of coal gas is reduced to 40-50 DEG C after heat exchange by the special structure heat exchanger 3, then it is connected with pipeline through coal gas outlet N3 to go to subsequent desulfurization process, the temperature of cooling water in cooling water inlet N2 is about 32 DEG C, then it enters cooling water tank chamber 2, special structure heat exchanger 3 and chamber connecting pipe 4 in turn, and finally flows out of the heat exchanger from cooling water outlet N1, and the temperature when flowing out is about 45 DEG C; the condensed water condensed by steam in coal gas is 30-40 DEG C, and it is connected with subsequent ammonia distillation process through condensed liquid outlet N5.

[0028] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A device for reducing the temperature of industrial gas, comprising a steel structure (6), characterized in that: A gas inlet pipe (1) is fixedly connected to the outside of the steel structure (6). Multiple heat exchangers (3) are fixedly connected to the inside of the steel structure (6). Multiple cooling water tanks (2) are fixedly connected to the outside of the steel structure (6). A gas outlet pipe (7) is fixedly connected to one side of the steel structure (6). A tank connecting pipe (4) is fixedly connected to one side of the steel structure (6). A manhole (5) is fixedly connected to the inside of the steel structure (6). An inlet / outlet mechanism for allowing objects or liquids to enter or exit is fixedly connected to the outside of the multiple cooling water tanks (2).

2. The device for reducing the temperature of industrial gas according to claim 1, characterized in that: The inlet / outlet mechanism includes a cooling water outlet (N1), the outside of which is fixedly connected to the outside of one of the cooling water tank chambers (2), and the outside of the other cooling water tank chamber (2) is fixedly connected to a cooling water inlet (N2).

3. The device for reducing the temperature of industrial gas according to claim 1, characterized in that: A gas inlet (N3) is fixedly connected to the outside of the gas inlet pipe (1), and a gas outlet (N4) is fixedly connected to the inside of the gas outlet pipe (7).

4. The device for reducing the temperature of industrial gas according to claim 1, characterized in that: The steel structure (6) is fixedly connected to a condensate outlet (N5) on its outer side. The condensate outlet (N5) allows condensate to be discharged from its interior, preventing excessive flow inside the device and thus preventing device malfunction.

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