Desalted water additionally provided with heat exchanger to absorb heat of fixed drainage water

Abstract

The system comprises a water tank, a raw water pool, a demineralized water heat exchanger, a cooling water pool and a regular drainage flash tank, the water tank is connected with the demineralized water heat exchanger through a first connecting pipe, a second connecting pipe and a third connecting pipe are arranged on the top of the demineralized water heat exchanger, and a fourth connecting pipe connected with the second connecting pipe and the third connecting pipe is arranged on the raw water pool. And one end of the fourth connecting pipe is provided with a fifth connecting pipe connected with the cooling water tank and the periodic blowdown flash tank. A valve and a pipeline are additionally arranged on the fourth fixed discharge outlet connecting pipe and connected to the demineralized water heat exchanger, fixed discharge water enters the demineralized water heat exchanger for heat dissipation, demineralized water passes through the demineralized water for heat absorption, coal resources are saved, heat loss of the fixed discharge water is reduced, the combustion efficiency of the boiler is improved, and the cost of a company is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler fixed discharge system technical field, specifically, relate to a kind of desalted water plus installation heat exchanger absorption fixed discharge water heat system. BACKGROUND

[0002] In order to reduce the salt content of boiler water, the boiler of thermal power plant will be matched with corresponding blowdown system to discharge steam with excessive salt content, but these steams contain a large amount of unsaturated flash steam, and the heat contained therein is wasted, and clean condensate water can also be used as boiler makeup water.

[0003] The existing boiler fixed and continuous discharge water is directly discharged into a cooling pond or recycled to the original pond for recycling, which greatly wastes water resources and water heat.

[0004] For the problems in the related art, there is no effective solution at present. UTILITY MODEL CONTENT

[0005] For the problems in the related art, the utility model provides a kind of desalted water plus installation heat exchanger absorption fixed discharge water heat system to overcome the above technical problems existing in the prior art.

[0006] Therefore, the specific technical scheme adopted by the utility model is as follows:

[0007] A kind of desalted water plus installation heat exchanger absorption fixed discharge water heat system, including water tank, original pond, desalted water heat exchanger, cooling pond and fixed discharge expansion vessel;

[0008] The water tank is connected with the desalted water heat exchanger by connecting pipe one, the top of the desalted water heat exchanger is provided with connecting pipe two and connecting pipe three, the original pond is provided with connecting pipe four connected with the connecting pipe two and the connecting pipe three, one end of the connecting pipe four is provided with connecting pipe five connected with the cooling pond and the fixed discharge expansion vessel.

[0009] Preferably, a fixed discharge pump is arranged on the connecting pipe four between the connecting pipe three and the connecting pipe five.

[0010] Preferably, a desalted water pump is arranged on the connecting pipe one.

[0011] Preferably, the top of the fixed discharge expansion vessel is provided with a gas discharge pipeline, and the fixed discharge expansion vessel is connected with a continuous discharge pipeline and a fixed discharge pipeline on both sides.

[0012] Preferably, the desalted water heat exchanger is provided with connecting pipe six on one side, and the connecting pipe six is connected with deaerator on one end.

[0013] Preferably, the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe and the sixth connecting pipe are provided with valves.

[0014] The beneficial effects of the utility model are that: the fourth connecting pipe of the fixed discharge outlet is additionally provided with the third connecting pipe which is connected to the desalted water heat exchanger, the desalted water absorbs the heat of the fixed discharge water, the temperature of the desalted water is increased, the efficiency of the boiler is increased, the heat of the fixed discharge water after being absorbed by the desalted water is recycled to the raw water pool through the second connecting pipe; the fourth connecting pipe of the fixed discharge outlet is additionally provided with a valve, and the pipeline is connected to the desalted water heat exchanger, the fixed discharge water enters the desalted water heat exchanger to radiate heat, the desalted water absorbs the heat, coal resources are saved, the loss of the heat of the fixed discharge water is reduced, the combustion efficiency of the boiler is increased, and the cost of the company is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0016] Figure 1 It is a structure diagram of a desalted water additionally provided with a heat exchanger to absorb the heat of fixed discharge water system according to the utility model embodiment.

[0017] In the drawings:

[0018] 1, water tank;2, raw water pool;3, desalted water heat exchanger;4, cooling water pool;5, fixed discharge expander;6, second connecting pipe;7, third connecting pipe;8, fourth connecting pipe;9, fifth connecting pipe;10, fixed discharge pump;11, desalted water pump;12, exhaust air pipeline;13, continuous discharge pipeline;14, fixed discharge pipeline;15, sixth connecting pipe;16, deaerator;17, first connecting pipe. DETAILED DESCRIPTION

[0019] In order to further illustrate the embodiments, the utility model provides drawings, these drawings are part of the utility model disclosure, mainly used to illustrate the embodiment, and can cooperate with the relevant description of the specification to explain the operation principle of the embodiment, cooperating with reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model, the components in the drawings are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0020] According to the embodiment of the utility model, a desalted water additionally provided with a heat exchanger to absorb the heat of fixed discharge water system is provided.

[0021] Embodiment one;

[0022] As Figure 1 The desalted water heat exchanger heat absorption fixed drainage system of the embodiment of the utility model, including water tank 1, raw water pool 2, desalted water heat exchanger 3, cooling water pool 4 and fixed drainage expansion vessel 5, as shown in the figure.

[0023] Water tank 1 is connected with desalted water heat exchanger 3 through connecting pipe one 17, the top of desalted water heat exchanger 3 is equipped with connecting pipe two 6 and connecting pipe three 7, raw water pool 2 is equipped with connecting pipe four 8 connected with connecting pipe two 6 and connecting pipe three 7, one end of connecting pipe four 8 is equipped with connecting pipe five 9 connected with cooling water pool 4 and fixed drainage expansion vessel 5.

[0024] Embodiment two;

[0025] As Figure 1 The fixed drainage pump 10 is arranged on connecting pipe four 8 and located between connecting pipe three 7 and connecting pipe five 9, desalted water pump 11 is arranged on connecting pipe one 17, the top of fixed drainage expansion vessel 5 is equipped with exhaust pipe 12, and the two sides of fixed drainage expansion vessel 5 are respectively connected with continuous drainage pipe 13 and fixed drainage pipe 14.

[0026] Embodiment three;

[0027] As Figure 1 One end of connecting pipe six 15 is connected with deaerator 16, and valve is arranged on connecting pipe one 17, connecting pipe two 6, connecting pipe three 7, connecting pipe four 8, connecting pipe five 9 and connecting pipe six 15.

[0028] In summary, according to the above technical scheme of the utility model, connecting pipe three 7 is installed on the connecting pipe four 8 of the fixed drainage outlet and led to the desalted water heat exchanger 3, the desalted water absorbs the heat of the fixed drainage water, the temperature of the desalted water is improved, the efficiency of the boiler is increased, the heat of the fixed drainage water after absorbing the desalted water is recovered to the raw water pool 2 through connecting pipe two 6, and the valve is installed on the connecting pipe four 8 of the fixed drainage outlet and connected to the desalted water heat exchanger 3, the fixed drainage water enters the desalted water heat exchanger 3 to dissipate heat, the desalted water absorbs heat, coal resources are saved, the loss of the heat of the fixed drainage water is reduced, the combustion efficiency of the boiler is increased, and the cost of the company is reduced.

[0029] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A system for absorbing heat from demineralized water using a heat exchanger, characterized in that, It comprises a water tank (1), a raw water pool (2), a desalted water heat exchanger (3), a cooling water pool (4) and a constant discharge expander (5). The water tank (1) is connected with the desalted water heat exchanger (3) through a connecting pipe one (17), the top of the desalted water heat exchanger (3) is provided with a connecting pipe two (6) and a connecting pipe three (7), the raw water pool (2) is provided with a connecting pipe four (8) connected with the connecting pipe two (6) and the connecting pipe three (7), one end of the connecting pipe four (8) is provided with a connecting pipe five (9) connected with the cooling water pool (4) and the constant discharge expander (5).

2. The system according to claim 1, wherein, A constant discharge pump (10) is arranged on the connecting pipe four (8) between the connecting pipe three (7) and the connecting pipe five (9).

3. The system of claim 2, wherein the system further comprises a heat exchanger. A desalted water pump (11) is arranged on the connecting pipe one (17).

4. The system of claim 1, wherein the system further comprises a heat exchanger. The top of the constant discharge expander (5) is provided with an exhaust pipe (12), and the two sides of the constant discharge expander (5) are respectively connected with a continuous discharge pipe (13) and a constant discharge pipe (14).

5. The system of claim 1, wherein the system further comprises a heat exchanger. One side of the desalted water heat exchanger (3) is provided with a connecting pipe six (15), and one end of the connecting pipe six (15) is connected with a deaerator (16).

6. The system of claim 5, wherein the desalted water feed heat exchanger absorbs heat from the drain water. Valves are arranged on the connecting pipe one (17), the connecting pipe two (6), the connecting pipe three (7), the connecting pipe four (8), the connecting pipe five (9) and the connecting pipe six (15).

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