High-temperature flue gas waste heat recycling device

Abstract

The utility model discloses a high-temperature flue gas waste heat recycling device which comprises a waste heat exchanger, in the waste heat exchanger, a high-temperature flue gas heat exchange pipeline is connected between a high-temperature flue gas inlet and a high-temperature flue gas outlet, and a heat exchange water heat exchange pipeline is connected between a heat exchange water inlet and a heat exchange water outlet. The high-temperature flue gas inlet is communicated with the high-temperature flue gas exhaust port through a high-temperature flue gas inlet pipeline, an inlet gas phase regulating valve is arranged on the high-temperature flue gas inlet pipeline, and the high-temperature flue gas outlet is communicated with a chimney through a high-temperature flue gas exhaust pipeline; the heat exchange water inlet is communicated with a water tank water outlet of the water tank through a heat exchange water inlet pipe, a circulating pump is arranged on the heat exchange water inlet pipe, and the heat exchange water outlet is communicated with a water tank water inlet of the water tank through a heat exchange water outlet pipe. According to the high-temperature flue gas waste heat recycling device, a large amount of heat load carried by high-temperature flue gas is used for heating hot water through the waste heat exchanger, the hot water requirement in the hydrogen fluoride production process is met, recycling of the high-temperature flue gas waste heat is achieved, waste of the waste heat is avoided, and the purposes of reducing cost and improving efficiency are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a high temperature flue gas waste heat recycling device for recycling the waste heat entrained by high temperature flue gas. BACKGROUND

[0002] Hydrogen fluoride is a basic raw material of organic fluorine chemistry, chemical formula is HF, colorless, irritating odor toxic gas at normal temperature and pressure, easily soluble in water, has hygroscopicity, "smoke" after hygroscopicity in air, is widely used in fluorine displacement halogenated hydrocarbon chlorine preparation chlorofluorocarbon, in electronic industry, is used to electrolytic synthesis nitrogen trifluoride raw material, etching agent in semiconductor manufacturing process etc. SUMMARY

[0003] The utility model discloses a kind of high temperature flue gas waste heat recycling devices, realize the reutilization of high temperature flue gas waste heat.

[0004] In order to achieve the above technical purpose, the technical scheme of the utility model is:

[0005] High temperature flue gas waste heat recycling device, including waste heat exchanger, the waste heat exchanger includes high temperature flue gas import, high temperature flue gas outlet, heat exchange water import and heat exchange water outlet, in waste heat exchanger, high temperature flue gas import and high temperature flue gas outlet are connected with high temperature flue gas heat exchange pipeline, heat exchange water import and heat exchange water outlet are connected with heat exchange water heat exchange pipeline, high temperature flue gas import is communicated high temperature flue gas exhaust port by high temperature flue gas inlet pipeline, import gas phase regulating valve is set on the high temperature flue gas inlet pipeline, high temperature flue gas outlet is communicated chimney by high temperature flue gas exhaust pipeline;Heat exchange water import is communicated water tank water tank outlet of water tank by heat exchange water inlet pipe, and circulating pump is provided on the heat exchange water inlet pipe, and heat exchange water outlet is communicated water tank inlet of water tank by heat exchange water outlet pipe.

[0006] The water tank is provided with a thermometer and a pH meter, the thermometer is used for measuring the water temperature in the water tank, and the pH meter is used for measuring the pH value in the water tank.

[0007] The water tank is provided with a hot water outlet, and the hot water in the water tank is led out through the hot water outlet for utilization.

[0008] The water tank is provided with a water replenishing port, and the water tank is replenished with water through the water replenishing port.

[0009] In order to guarantee the smooth operation of the high-temperature flue gas waste heat recycling device, the high-temperature flue gas exhaust port is connected with a chimney through a chimney exhaust pipeline, and the chimney exhaust pipeline is provided with a manual valve.

[0010] The high-temperature flue gas waste heat recycling device adopts a waste heat exchanger to heat hot water by a large amount of heat load carried by high-temperature flue gas, so as to meet the hot water demand in the production process of hydrogen fluoride, realize recycling of high-temperature flue gas waste heat, avoid waste of waste heat, and achieve the purpose of cost reduction and benefit increase. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0012] Figure 1 It is a structural schematic diagram of the utility model. SPECIFIC EMBODIMENT

[0013] As shown in the figure, the high-temperature flue gas waste heat recycling device comprises a waste heat exchanger 2, and the waste heat exchanger 2 comprises a high-temperature flue gas inlet, a high-temperature flue gas outlet, a heat exchange water inlet and a heat exchange water outlet. Figure 1 Between the high-temperature flue gas inlet and the high-temperature flue gas outlet in the waste heat exchanger 2, a high-temperature flue gas heat exchange pipeline is connected, between the heat exchange water inlet and the heat exchange water outlet, a heat exchange water heat exchange pipeline is connected, the high-temperature flue gas heat exchange pipeline and the heat exchange water heat exchange pipeline exchange heat, the high-temperature flue gas inlet is connected with a high-temperature flue gas exhaust port 1 through a high-temperature flue gas inlet pipeline 21, an inlet gas phase regulating valve 6 is arranged on the high-temperature flue gas inlet pipeline 21, the inlet gas phase regulating valve 6 is used for adjusting the flow of the high-temperature flue gas inlet pipeline 21, and the high-temperature flue gas outlet is connected with a chimney 4 through a high-temperature flue gas exhaust pipeline 41. The chimney 4 is connected with the high-temperature flue gas exhaust port 1 through a chimney exhaust pipeline 42, the chimney exhaust pipeline 42 is provided with a manual valve 7, and the manual valve 7 is used for controlling the on-off of the chimney exhaust pipeline 42.

[0014] The heat exchange water inlet is connected with a water tank outlet of a water tank 3 through a heat exchange water inlet pipeline 31, a circulating pump 5 is arranged on the heat exchange water inlet pipeline 31, the heat exchange water outlet is connected with a water tank inlet of the water tank 3 through a heat exchange water outlet pipeline 32, and the circulating pump 5 is used for conveying water in the water tank 3 to the waste heat exchanger 2 to exchange heat.

[0015] The water tank 3 is provided with a hot water outlet, and the hot water in the water tank is led out through the hot water outlet to utilize the hot water. The water tank 3 is provided with a water supplement inlet, and the water tank 3 is supplemented with water through the water supplement inlet.

[0016] The water tank 3 is provided with a thermometer 8 and a pH tester 9, the thermometer 8 is used for measuring the water temperature in the water tank 3, and the pH tester 9 is used for measuring the pH value in the water tank 3.

[0017] This high-temperature flue gas waste heat recovery device uses a waste heat exchanger to heat the large amount of heat load carried by the high-temperature flue gas into hot water to meet the hot water demand in the hydrogen fluoride production process, realize the recovery of high-temperature flue gas waste heat, avoid waste of waste heat, and achieve the purpose of cost reduction and efficiency improvement.

[0018] The above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A device for high-temperature flue gas waste heat reuse, characterized in that: The waste heat exchanger comprises a high-temperature flue gas inlet, a high-temperature flue gas outlet, a heat exchange water inlet and a heat exchange water outlet, a high-temperature flue gas heat exchange pipeline is connected between the high-temperature flue gas inlet and the high-temperature flue gas outlet in the waste heat exchanger, a heat exchange water heat exchange pipeline is connected between the heat exchange water inlet and the heat exchange water outlet, the high-temperature flue gas inlet is communicated with a high-temperature flue gas exhaust port through a high-temperature flue gas inlet pipeline, an inlet gas phase adjusting valve is arranged on the high-temperature flue gas inlet pipeline, and the high-temperature flue gas outlet is communicated with a chimney through a high-temperature flue gas exhaust pipeline; the high-temperature flue gas exhaust port is communicated with the chimney through a chimney exhaust pipeline, and a manual valve is arranged on the chimney exhaust pipeline; the heat exchange water inlet is communicated with a water tank outlet of a water tank through a heat exchange water inlet pipeline, a circulating pump is arranged on the heat exchange water inlet pipeline, and the heat exchange water outlet is communicated with a water tank inlet of the water tank through a heat exchange water outlet pipeline.

2. The high temperature flue gas waste heat reuse device according to claim 1, characterized in that: The water tank is provided with a thermometer and a pH tester, the thermometer is used for measuring the water temperature in the water tank, and the pH tester is used for measuring the pH value in the water tank.

3. The high temperature flue gas waste heat reuse device according to claim 1, characterized in that: The water tank is provided with a hot water outlet.

4. The high temperature flue gas residual heat reuse device according to claim 1, characterized in that: The water tank is provided with a water supplement inlet, and the water tank is supplemented with water through the water supplement inlet.

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