Improved chicken manure power plant water treatment raw water heating system

Abstract

The utility model provides an improved raw water heating system for water treatment of a chicken manure power plant. The improved raw water heating system comprises a boiler continuous blowdown expander, a waste hot water pipeline, an industrial water pipeline, a water inlet main pipe, a raw water tank, a chemical water tank and a deaerator, the water inlet end of the waste hot water pipeline is connected with the boiler continuous blowdown expander, the water outlet end of the waste hot water pipeline is connected with the water inlet mother pipe, the industrial water pipeline is also connected into the water inlet mother pipe, and the water inlet mother pipe is connected with a water inlet of the raw water pool; a steam outlet of the boiler continuous blowdown expander is provided with a first branch pipe and a second branch pipe, the first branch pipe is connected with a raw water tank, and the second branch pipe is connected with a deaerator; the water outlet end of the raw water tank is connected with the chemical water tank, and the water outlet end of the chemical water tank is connected with the deaerator. According to the utility model, the continuous drainage of the boiler is recycled, the waste is avoided, the efficiency of the boiler is improved, the water temperature of the raw water tank is improved, the pretreatment effects of removing microorganisms and the like are enhanced, the utilization rate of resin desalting is also improved, and the working efficiency of the deaerator is improved at the same time.

Description

Technical Field

[0001] The utility model relates to an improved raw water heating system for water treatment of a chicken manure power plant. Background Art

[0002] With the development of domestic breeding industry, biomass power plants using chicken manure as fuel have emerged. They can not only effectively treat chicken manure and turn waste into treasure, but also produce clean electricity. Water treatment equipment is a water-making equipment widely used in chicken manure power plants. Water treatment equipment has certain requirements for flow rate, flow rate, raw water temperature, and water quality during the water-making process. Among them, the increase in raw water temperature can better remove microorganisms in the front-end pretreatment to a certain extent, and also enhance the utilization rate of resin desalination. On the other hand, the increase in the temperature of desalted water used as feed water for steam turbine deaerators is also beneficial to improve the efficiency of steam turbine deaerators. At present, water treatment equipment is relatively independent of boiler drainage in terms of raw water temperature increase, which limits the recovery and utilization of boiler drainage heat. For this reason, the utility model provides a water treatment system that can use boiler drainage heat to heat raw water, so as to improve the efficiency of the boiler and solve the above technical problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a water treatment raw water heating system which can effectively utilize boiler discharge water.

[0004] An improved raw water heating system for water treatment in a chicken manure power plant, comprising a boiler continuous blowdown expander, a waste hot water pipeline, an industrial water pipeline, a water inlet main pipe, a raw water tank, a chemical water tank and a deaerator;

[0005] The water inlet end of the waste hot water pipeline is connected to the boiler continuous blowdown expander, the water outlet end of the waste hot water pipeline is connected to the water inlet main pipe, the industrial water pipeline is also connected to the water inlet main pipe, and the water inlet main pipe is connected to the water inlet of the raw water tank;

[0006] The steam outlet of the boiler continuous blowdown expander has a first branch pipe and a second branch pipe, the first branch pipe is connected to the raw water tank and heats the water in the raw water tank, and the second branch pipe is connected to the deaerator;

[0007] The water outlet of the raw water tank is connected to the chemical water tank, and the water outlet of the chemical water tank is connected to the deaerator.

[0008] Furthermore, the first branch pipe and the second branch pipe are each provided with a respective control valve.

[0009] Furthermore, a desalted water pump is provided on the connecting pipe between the deoxidation tank and the deaerator.

[0010] Furthermore, a raw water pump is provided on the connecting pipe between the raw water tank and the chemical water tank.

[0011] Furthermore, the water inlet main pipe is provided with a safety valve, a pressure gauge, a water level regulator, a liquid level gauge and a thermometer.

[0012] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0013] 1. The utility model provides a raw water heating solution. The waste water from the boiler continuous blowdown expansion device is collected into the water inlet main pipe and then enters the raw water pool, so that the boiler continuous blowdown water can be recycled and reused, avoiding waste, improving boiler efficiency, and eliminating the impact of direct discharge on the environment; the first branch pipe of the steam outlet of the boiler continuous blowdown expansion device is connected to the raw water pool, and when the water temperature in the raw water pool is low, the water in the raw water pool can be heated to further increase the water temperature of the raw water pool. The increase in water temperature solves the impact of low temperature on pretreatment and desalination treatment of chemical water production, enhances the pretreatment effect of removing microorganisms, and also improves the utilization rate of resin desalination;

[0014] 2. The water in the water tank enters the deaerator, which can increase the water temperature of the deaerator feed water, thereby reducing the energy consumption of the deaerator and improving the deoxidation effect. The steam outlet of the boiler continuous blowdown expander is connected to the deaerator through the second branch pipe, which can be used as the heat source of the deaerator to improve the working efficiency of the deaerator;

[0015] 3. This system is simple and convenient, with a short construction period and low equipment cost. The temperature of the raw water pool is stable and can provide heating for living areas and office areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] in:

[0018] Figure 1 It is a schematic diagram of an improved raw water heating system for water treatment in a chicken manure power plant;

[0019] Figure 1 The symbols are: boiler continuous sewage expansion device 1, waste hot water pipeline 11, first branch pipe 12, second branch pipe 13, industrial water pipeline 2, water inlet main pipe 3, raw water tank 4, raw water pump 5, chemical water tank 6, desalted water pump 7, deaerator 8. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] See also Figure 1 , an improved raw water heating system for water treatment of chicken manure power plant, comprising a boiler continuous blowdown expander 1, a waste hot water pipeline 11, an industrial water pipeline 2, a water inlet main pipe 3, a raw water tank 4, a chemical water tank 6 and a deaerator 8;

[0022] The water inlet end of the waste hot water pipe 11 is connected to the boiler continuous blowdown expander 1, the water outlet end of the waste hot water pipe 11 is connected to the water inlet main pipe 3, the industrial water pipe 2 is also connected to the water inlet main pipe 3, and the water inlet main pipe 3 is connected to the water inlet of the raw water tank 4; the waste hot water of the boiler continuous blowdown expander 1 and the industrial water are together introduced into the water inlet main pipe 3, and the water temperature is pre-comprehensively adjusted in the water inlet main pipe 3, which can reduce the safety hazards of waste hot water with higher temperature during long-distance transportation.

[0023] The water inlet main pipe 3 is provided with a safety valve, a pressure gauge, a water level regulator, a liquid level gauge and a thermometer (not shown in the figure) for monitoring and adjusting the temperature, pressure and amount of the inlet water.

[0024] The steam outlet of the boiler continuous sewage expansion device 1 has a first branch pipe 12 and a second branch pipe 13. The first branch pipe 12 is connected to the raw water tank 4 and heats the water in the raw water tank 4. The second branch pipe 13 is connected to the deaerator 8 and provides steam for the deaerator 8. The first branch pipe 12 and the second branch pipe 13 are both provided with respective control valves.

[0025] The outlet of the raw water tank 4 is connected to the chemical water tank 6, and a raw water pump 5 is provided on the connecting pipe between the raw water tank 4 and the chemical water tank 6. The outlet of the chemical water tank 6 is connected to the deaerator 8. A desalted water pump 7 is provided on the connecting pipe between the chemical water tank 6 and the deaerator 8.

[0026] The utility model provides a raw water heating solution, in which the waste water from the boiler continuous sewage expander 1 is collected into the water inlet main pipe 3 and then enters the raw water pool 4, so that the boiler continuous sewage can be recycled, thus avoiding waste, improving boiler efficiency and eliminating the impact of direct discharge on the environment.

[0027] The first branch pipe 12 of the steam outlet of the boiler continuous blowdown expander 1 is connected to the raw water tank 4. When the water temperature of the raw water tank 4 is low (lower than 60°C), the water in the raw water tank 4 can be heated to further increase the water temperature of the raw water tank 4. The increase in water temperature solves the impact of low temperature on pretreatment and desalination treatment of chemical water production, enhances the pretreatment effect of removing microorganisms, and also improves the utilization rate of resin desalination.

[0028] The water in the deoxidizer 6 enters the deoxidizer 8, which can increase the water temperature of the deoxidizer 8 feed water, thereby reducing the energy consumption of the deoxidizer 8 and improving the deoxidation effect. The steam outlet of the boiler continuous blowdown expander 1 is connected to the deoxidizer 8 through the second branch pipe 13, which can be used as a heat source for the deoxidizer 8 to improve the working efficiency of the deoxidizer 8.

[0029] The deaerator and valves used in the pipelines of the utility model are commercially available products and are not described in detail here; the diameter of each pipeline is limited to ensure smooth flow of water and steam.

[0030] Two boilers can share one continuous blowdown expander. Our company currently has three 75T boilers, and the annual recovery and utilization of boiler continuous blowdown capacity is about 20,000 tons.

[0031] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An improved raw water heating system for chicken manure power plant water treatment, characterized in that: Including boiler continuous blowdown expander, waste hot water pipeline, industrial water pipeline, water inlet main pipe, raw water tank, chemical water tank and deaerator; The water inlet end of the waste hot water pipeline is connected to the boiler continuous blowdown expander, the water outlet end of the waste hot water pipeline is connected to the water inlet main pipe, the industrial water pipeline is also connected to the water inlet main pipe, and the water inlet main pipe is connected to the water inlet of the raw water tank; The steam outlet of the boiler continuous blowdown expander has a first branch pipe and a second branch pipe, the first branch pipe is connected to the raw water tank, and the second branch pipe is connected to the deaerator; The water outlet of the raw water tank is connected to the chemical water tank, and the water outlet of the chemical water tank is connected to the deaerator.

2. The improved chicken manure power plant water treatment raw water heating system according to claim 1 is characterized in that: The first branch pipe and the second branch pipe are each provided with a respective control valve.

3. The improved chicken manure power plant water treatment raw water heating system according to claim 1 is characterized in that: A desalted water pump is provided on the connecting pipeline between the deoxidizer and the deaerator.

4. The improved chicken manure power plant water treatment raw water heating system according to claim 1 is characterized in that: A raw water pump is provided on the connecting pipeline between the raw water tank and the chemical water tank.

5. The improved chicken manure power plant water treatment raw water heating system according to claim 1 is characterized in that: The water inlet main pipe is provided with a safety valve, a pressure gauge, a water level regulator, a liquid level gauge and a thermometer.

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