High-temperature condensate water recovery and heat energy utilization device

Abstract

The utility model provides a high-temperature condensate water recovery and heat energy utilization device, which aims at solving the problems of low direct discharge and recovery utilization rate of steam condensate water, energy waste and the like at present, and comprises a water replenishing pipeline (1), a water replenishing tank (2), an overflow pipe (3), an exhaust pipe (4), a condensate water mixing device (5), a liquid level meter (6), a recovery tank (7), a condensate water inlet pipeline (8), a water supply pipeline (9) and a blow-off pipe (10). According to the device, the specially designed condensate water mixing device is adopted, the water quantity is adjustable, the water temperature is controllable, the heat exchange efficiency is high, the operation is stable, the maintenance amount is small, high-temperature condensate water and heat energy thereof are deeply recycled, and the problem of energy waste caused by direct drainage of the condensate water is solved.

Description

Technical Field

[0001] The utility model belongs to heat energy recovery and energy-saving equipment, in particular to a high-temperature condensed water recovery and heat energy utilization device. Background Art

[0002] At present, gas-fired steam boilers are widely used in China. The steam generated by the boiler is mainly used for production heating processes. After steam heat exchange, a large amount of high-calorific value condensate is generated. Some factories directly discharge it, resulting in serious waste of water resources and heat energy. Although some factories recycle it, the recycling rate is low. There are common problems such as unreasonable system structure design, high resistance, unstable operation, pipeline water hammer, and low recycling rate. Summary of the Invention

[0003] The purpose of this utility model is to design and manufacture a high-temperature condensed water recovery and heat energy utilization device, so as to achieve the deep utilization of high-temperature condensed water and heat after steam condensation, reduce water resource consumption, recover heat energy and save fuel, thereby improving boiler efficiency and enabling it to be widely promoted and applied.

[0004] The utility model is realized as follows: the condensate recovery and heat energy utilization device comprises a water supply pipe (1), a water supply tank (2), an overflow pipe (3), an exhaust pipe (4), a condensate mixing device (5), a liquid level gauge (6), a recovery tank (7), a condensate inlet pipe (8), a water supply pipe (9), and a sewage pipe (10). High-temperature condensate passes through the water supply pipe (8), passes through the condensate mixing device (5), is cooled, and then enters the recovery tank (7). A small amount of flash steam generated enters the water supply tank (2) through the exhaust pipe (4); the condensate recovered by the recovery tank (7) enters the boiler through the water supply pipe (9) for reuse.

[0005] The inner tube of the condensate mixing device (5) adopts a large-pitch spiral fin tube structure, and the outlet adopts a gradually expanding trumpet structure with a gradually expanding angle of 30 to 45 degrees. There are 2 to 4 rows of staggered small holes on the trumpet-shaped ring, and the diameter of the small holes is Φ4 to Φ6, which facilitates the full mixing of the water tank replenishment water and the high-temperature condensate to control the boiler feed water temperature.

[0006] The recovery tank (7) adopts a cylindrical barrel structure, a liquid level gauge (6) is provided on the barrel, an overflow pipe (3) is provided on the upper part of the barrel, an exhaust pipe (4) is provided on the top, and a water supply pipe (9) and a sewage pipe (10) are provided on the bottom.

[0007] The working principle of the utility model is as follows: the high-temperature condensed water generated after the steam condenses is collected and enters the condensed water inlet pipe. The high-temperature condensed water and the low-temperature make-up water of the mixing device are fully mixed at the outlet after heat exchange through the partition wall and then enter the recovery tank. The water enters the boiler for reuse through the water supply pipe, and the high-temperature condensed water and its heat energy are fully recycled.

[0008] The technical effect of the utility model is as follows: since the utility model adopts a specially designed condensate mixing device, the water volume is adjustable, the water temperature is controllable, the heat exchange efficiency is high, the operation is simple and reliable, the operation is stable and the maintenance is small, and an arc-shaped anti-cavitation baffle is provided inside the recovery tank, which effectively prevents the cavitation problem at the water pump inlet, and the high-temperature condensate is recycled and utilized to the maximum extent, thereby saving energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. Figure 1 It is a structural diagram of the present invention; wherein, 1, water supply pipe 2, water supply tank 3, overflow pipe 4, exhaust pipe 5, condensate mixing device 6, liquid level meter 7, recovery tank 8, condensate inlet pipe 9, water supply pipe 10, sewage pipe. DETAILED DESCRIPTION

[0010] The present invention is further described below with reference to the accompanying drawings: the exhaust pipe (4) is located at the top of the recovery tank (7), the overflow pipe (3), the liquid level gauge (6) and the condensate mixing device (5) are located in the upper middle portion of the recovery tank (7); the water supply pipe (1) and the water supply tank (2) are connected to the condensate mixing device (5); the water supply pipe (9) and the sewage pipe (10) are located at the bottom of the recovery tank (7). The high-temperature condensate passes through the condensate inlet pipe (8), passes through the condensate mixing device (5), is cooled, and is mixed with the low-temperature water in the water supply pipe (1) before entering the recovery tank (7). The condensate recovered by the recovery tank (7) enters the boiler for recycling through the water supply pipe (9).

[0011] The working procedure of the utility model is as follows: the high-temperature condensed water generated after the steam releases heat and condenses enters the mixing device through the condensed water inlet pipe, is cooled by the low-temperature make-up water in the mixing device, and then mixed and enters the recovery tank. The condensed water entering the recovery tank enters the boiler for recycling as boiler make-up water through the bottom water supply pipe.

[0012] It should be pointed out that the specific implementation methods described above can enable technical personnel in this field to have a more comprehensive understanding of the present invention, and those skilled in the art can understand and modify or make equivalent substitutions to the present invention; and all technical solutions and improvements that do not depart from the principles and scope of the present invention should be included in the scope of protection of the present utility model patent.

Claims

1. A high-temperature condensed water recovery and heat energy utilization device, characterized in that The utility model comprises a water supply pipe (1), a water supply tank (2), an overflow pipe (3), an exhaust pipe (4), a condensed water mixing device (5), a liquid level gauge (6), a recovery tank (7), a condensed water inlet pipe (8), a water supply pipe (9), and a sewage pipe (10); wherein the sewage pipe (4) is located at the top of the recovery tank (7), the overflow pipe (3), the liquid level gauge (6) and the condensed water mixing device (5) are located at the upper middle part of the recovery tank (7), the water supply pipe (1) and the water supply tank (2) are connected to the condensed water mixing device (5), and the water supply pipe (9) and the sewage pipe (10) are located at the bottom of the recovery tank (7).

2. A high-temperature condensed water recovery and heat energy utilization device according to claim 1, characterized in that The inner tube of the condensate mixing device (5) adopts a large-pitch spiral fin tube structure, and the outlet adopts a gradually expanding trumpet structure with a gradually expanding angle of 30 to 45 degrees. The trumpet-shaped circular ring is provided with 2 to 4 rows of staggered small holes with a diameter of Φ4 to Φ6.

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