Novel graphite quench tower

Abstract

The utility model relates to a novel graphite quench tower which comprises a steel shell, a liquid collecting tank is arranged at the inner bottom of the steel shell, a conical air outlet cylinder is arranged at the top of the steel shell, a gas distribution pipe is arranged above the liquid collecting tank, a plurality of honeycomb-shaped graphite heat exchange blocks are arranged above the gas distribution pipe in a stacked mode, and cooling pipelines are inserted in the graphite heat exchange blocks in a penetrating mode. The spraying system comprises a water pump, a spraying pipe, a water tank and a water inlet pipe, the lower end of the water inlet pipe penetrates through the graphite heat exchange blocks, the upper end of the water inlet pipe is communicated with the water tank, the water pump is communicated with the water inlet pipe, and a water outlet of the water tank is communicated with the spraying pipe. The lower end face of each graphite heat exchange block is a concave conical face, and the honeycomb holes of every two adjacent graphite heat exchange blocks are arranged in a staggered mode. And a gas-liquid redistribution cavity is formed between the two stacked graphite heat exchange blocks, so that the gas floating speed is reduced, and the heat exchange effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite heat exchanger technical field, especially a kind of novel graphite quench tower. BACKGROUND

[0002] Graphite cooling tower is the high-efficiency heat transfer equipment commonly used in chemical field, usually used for the rapid cooling of high-temperature gas (corrosive flue gas, chlorine-containing waste liquid incineration gas), cold and hot two kinds of fluids are separated by a solid wall, and heat is transferred from one side to the other side through graphite wall, so that the mixing of two kinds of fluids can be avoided, and the heat exchange of two kinds of fluids can be achieved. The current round block type graphite heat exchanger, several graphite blocks are built-in for heat exchange, in order to improve the heat exchange efficiency, a graphite layer with relatively thick thickness is usually erected for heat exchange, and the high-efficiency heat exchange purpose is achieved by prolonging the heat exchange flow channel. However, the graphite layer with relatively thick thickness increases the cost of the cooling tower and causes the tower body to be relatively heavy, which is extremely inconvenient for installation and transportation, and therefore needs to be improved. SUMMARY

[0003] Therefore, it is necessary to provide a novel graphite quench tower aiming at the above problems.

[0004] A novel graphite quench tower, comprising a steel shell, a liquid collecting tank is installed at the inner bottom of the steel shell, a conical gas outlet cylinder is arranged at the top of the steel shell, a gas distribution pipe is installed above the liquid collecting tank, the gas inlet of the gas distribution pipe penetrates through the steel shell and is communicated with the pipeline outside, a plurality of graphite heat exchange blocks in honeycomb shape are arranged in layers above the gas distribution pipe, cooling pipelines are inserted into the graphite heat exchange blocks, a spraying system is arranged above the graphite heat exchange blocks at the top layer, a demisting net is arranged between the spraying system and the gas outlet cylinder, the spraying system comprises a water pump, a spraying pipe, a water tank and a water inlet pipe, the lower end of the water inlet pipe penetrates through a plurality of graphite heat exchange blocks and is inserted into the liquid collecting tank, the upper end of the water inlet pipe is communicated with the water tank, the water pump is communicated with the water inlet pipe, the water outlet of the water tank is communicated with the spraying pipe, the lower end surface of the graphite heat exchange block is a concave conical surface, and the honeycomb holes of two adjacent graphite heat exchange blocks are arranged in a staggered manner.

[0005] Preferably, a spoiler is arranged between the two adjacent graphite heat exchange blocks.

[0006] Preferably, the cooling pipelines are arranged in an S-shaped horizontal manner in the graphite heat exchange blocks and are arranged in a staggered manner with the honeycomb holes of the graphite heat exchange blocks.

[0007] Preferably, a refrigerator is installed in the liquid collecting tank.

[0008] Preferably, the lower part of the spray pipe is also provided with a water collector, the water collector comprises corrugated plates, a conical bottom and an overflow pipe, the middle part of the conical bottom is higher than the edge part, the corrugated plates are evenly and divergently arranged around the water inlet pipe, the middle part of the conical bottom is provided with air holes, the upper end of the overflow pipe is communicated with the conical bottom, and the lower end of the overflow pipe penetrates through the graphite heat exchange block and is inserted into the liquid collecting groove.

[0009] The graphite heat exchange block is designed as a recessed lower surface, so that a gas-liquid redistribution cavity is formed between the two stacked graphite heat exchange blocks, the high-temperature gas is uniformly mixed in the gas-liquid redistribution cavity during the floating process, the gas floating speed is reduced, the gas slowly passes through the graphite heat exchange block, and the heat exchange effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is a three-dimensional schematic view of a novel graphite quenching tower;

[0011] Fig. 2 It is a three-dimensional schematic view of a novel graphite quenching tower. DETAILED DESCRIPTION

[0012] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent and easy to understand, the specific implementation of the utility model is described in detail below. In the following description, a lot of specific details are set forth in order to give a thorough understanding of the utility model. However, the utility model can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0013] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0015] AsFigs. 1-2The graphite quenching tower includes a steel shell 1, a liquid collecting tank 2 is mounted on the inner bottom of the steel shell 1, a tapered gas outlet cylinder 3 is arranged on the top of the steel shell 1, a gas distribution pipe 4 is mounted above the liquid collecting tank 2, the gas inlet of the gas distribution pipe 4 is communicated with the outside pipeline through the steel shell 1, a plurality of honeycomb-shaped graphite heat exchange blocks 5 are arranged in layers above the gas distribution pipe 4, cooling pipelines 51 are inserted into the graphite heat exchange blocks 5, a spraying system 6 is arranged above the graphite heat exchange blocks 5 on the top layer, a demisting net 7 is arranged between the spraying system 6 and the gas outlet cylinder 3, the spraying system 6 includes a water pump 61, a spraying pipe 62, a water tank 63 and a water inlet pipe 64, the lower end of the water inlet pipe 64 penetrates through the graphite heat exchange blocks 5 and is inserted into the liquid collecting tank 2, the upper end of the water inlet pipe 64 is communicated with the water tank 63, the water pump 61 is communicated with the water inlet pipe 64, the water outlet of the water tank 63 is communicated with the spraying pipe 62, the lower end surface of the graphite heat exchange block 5 is a concave tapered surface, and the honeycomb holes of the adjacent two graphite heat exchange blocks 5 are arranged in a staggered manner. Specifically, in the embodiment, the steel shell 1 is made of stainless steel, which is used to form a closed space to avoid leakage of high-temperature gas and to protect and mount the graphite heat exchange blocks 5 and the spraying system 6 integrated therein. The liquid collecting tank 2 is integrated at the bottom of the steel shell 1, which is used to circulate and collect cooling water, so that the water does not need to be frequently supplemented, thereby reducing the cooling cost. The gas distribution pipe 4 is used to input the high-temperature gas to be cooled into the steel shell 1, thereby avoiding concentrated input, so that the high-temperature gas entering the steel shell 1 is more dispersed, thereby increasing the contact area with the graphite heat exchange blocks 5. The graphite heat exchange blocks 5 are arranged on the liquid collecting tank 2, and the graphite heat exchange blocks 5 are arranged in layers, which can effectively prolong the heat exchange path of the high-temperature gas and enhance the heat exchange performance. In the honeycomb-shaped graphite heat exchange blocks 5, after the high-temperature gas is input through the gas distribution pipe 5, the gas can float up through the pores of the graphite heat exchange blocks 5 and exchange heat with the graphite heat exchange blocks 5 cooled through the cooling pipelines 51, so that the high-temperature gas is cooled. When the gas flows out of the graphite heat exchange blocks 5 on the top layer, the spraying system 6 sprays water mist to exchange heat with the gas still having residual heat, the water droplets fall on the graphite heat exchange blocks 5 and finally gather in the liquid collecting tank 2. In order to realize the recycling of the water, an water inlet pipe 64 is designed to penetrate through the graphite heat exchange blocks and be inserted into the liquid collecting tank 2. When the water in the water tank 63 is insufficient, the water pump 61 is started to pump the water in the liquid collecting tank 2 back to the water tank 63, and the water is pressurized by the booster pump arranged in the water tank 63, so that the water is sprayed from the spraying pipe 62. In order to increase the spraying area, a spray head can be arranged at the pipe opening of the spraying pipe 62.We will design the traditional standard circular block graphite heat exchange block as the lower surface is concave, so that the two stacked graphite heat exchange blocks form a gas-liquid redistribution cavity, so that the high-temperature gas is mixed uniformly in the gas-liquid redistribution cavity during the floating process, and the gas floating speed is reduced, so that the gas slowly passes through the graphite heat exchange block 5, and the heat exchange effect is better. Without thickening the overall thickness of the graphite heat exchange block 5, the use cost of the graphite heat exchange block and the self weight of the cooling tower are reduced, and the transportation and installation are convenient.

[0016] As shown in Fig. 2 , two adjacent graphite heat exchange blocks 5 are also provided with a spoiler 52, and the spoiler 52 can guide the airflow and avoid direct vertical floating of the gas, reduce the flow rate of the high-temperature gas, and make the high-temperature gas fully mixed in the recessed space at the lower end of the graphite heat exchange block 5, so that the gas temperature is uniform.

[0017] As shown in Fig. 2 , the cooling pipeline 51 is arranged in the graphite heat exchange block 5 in an S-shaped horizontal manner, and is offset from the honeycomb hole of the graphite heat exchange block 5. Specifically, the S-shaped arrangement of the cooling pipeline 51 increases the length of the cooling pipeline 51 in the graphite heat exchange block 5. After the cooling pipeline 51 is connected with the external pipeline and the cooling liquid flows in the pipeline, the longer the path, the better the cooling effect of the graphite heat exchange block 5, and the heat exchange performance of the gas passing through the graphite heat exchange block 5 is improved.

[0018] Specifically, the liquid collecting tank 2 is provided with a refrigerator for refrigerating the liquid circulating in the liquid collecting tank 2. When the spray pipe 62 sprays water mist through the spray head, it exchanges heat with the gas to cool and dissipate heat, and carries away the heat carried by the gas.

[0019] As shown in Fig. 2As shown, the lower part of the spray pipe 62 is also provided with a water collector 8, which comprises corrugated plates 81, a conical bottom 82 with a middle part higher than the edge part, and an overflow pipe 83. The corrugated plates 81 are evenly and divergently arranged around the water inlet pipe 64, and the conical bottom 82 is provided with air holes 821 in the middle part. The upper end of the overflow pipe 83 is communicated with the conical bottom 82, and the lower end of the overflow pipe 83 penetrates through the graphite heat exchange block 5 and is inserted into the liquid collecting groove 2. Specifically, when the gas floats out from the uppermost graphite heat exchange block 5, it enters the water collector 8 from the air holes 821 in the middle part of the conical bottom 82. At this time, the spray system 6 is started, and the spray pipe 62 sprays water mist through the spray head. When the gas floats up along the gap between the two corrugated plates 81, it contacts the water mist. The mist liquid with a diameter greater than 200 μm is impacted on the surface of the corrugated plate 81 due to inertia and adheres to the surface of the corrugated plate. After coalescing into a film, it drops on the conical bottom 82. Because the conical bottom 82 is higher in the middle part and lower in the edge part, the water liquid gradually collects to the edge part of the conical bottom 82 and is finally returned to the liquid collecting groove 2 through the overflow pipe 83, so as to complete the circulation of the water liquid. A small part of the water liquid drops on the uppermost graphite heat exchange block 5 from the air holes 821 and drops down step by step, and is finally also returned to the liquid collecting groove 2.

[0020] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A novel graphite quench tower characterized by: The utility model provides a kind of graphite heat exchange block and cooling system, including steel shell, the inner bottom of the steel shell is equipped with liquid collecting tank, the top of the steel shell is equipped with conical gas outlet cylinder, the upper of the liquid collecting tank is equipped with gas distribution pipe, the gas inlet of the gas distribution pipe is communicated with outside pipeline through steel shell, the gas distribution pipe upper is stacked with several honeycomb-shaped graphite heat exchange blocks, cooling pipeline is inserted in the graphite heat exchange block, the graphite heat exchange block of top layer is equipped with spray system above, and demisting net is arranged between the spray system and gas outlet cylinder, and the spray system includes water pump, spray pipe, water tank and water inlet pipe, the lower end of the water inlet pipe is inserted into the liquid collecting tank through several graphite heat exchange blocks, the upper end of the water inlet pipe is communicated with water tank, the water pump is communicated with water inlet pipe, the water outlet of the water tank is communicated with spray pipe, the lower end surface of the graphite heat exchange block is recessed conical surface, and the honeycomb hole of two adjacent graphite heat exchange blocks is misaligned.

2. A novel graphite quench tower as claimed in claim 1, wherein: The graphite heat exchange block is also provided with a spoiler between the two adjacent graphite heat exchange blocks.

3. A novel graphite quench tower as claimed in claim 2, wherein: The cooling pipeline is horizontally arranged in the graphite heat exchange block in S shape, and is misaligned with the honeycomb hole of the graphite heat exchange block.

4. A novel graphite quench tower as claimed in claim 1, wherein: The liquid collecting tank is equipped with a refrigerator.

5. A novel graphite quench tower as claimed in claim 1, wherein: The lower of the spray pipe is also provided with a water collector, and the water collector includes corrugated plate, cone bottom and overflow pipe, the middle part height of the cone bottom is higher than the edge height, the corrugated plate is evenly spaced and divergent around the water inlet pipe, the cone bottom is provided with air hole, the upper end of the overflow pipe is communicated with the cone bottom, and the lower end of the overflow pipe penetrates the graphite heat exchange block and is inserted into the liquid collecting tank.

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