Steam condensate water recycling device

Abstract

The utility model discloses a steam condensate water recycling device, including distillation part, condensate storage tank, pump, first heat exchanger, second heat exchanger, cooling part, distillate storage tank, the input of condensate storage tank is connected with the first output of distillation part, the first input of second heat exchanger is connected with the output of condensate storage tank, the first input of cooling part is connected with the first output of second heat exchanger, the first input of first heat exchanger is connected with the output of cooling part, the second input of cooling part is connected with the first output of first heat exchanger, the second input of first heat exchanger is connected with the second output of distillation part, the input of distillate storage tank is connected with the second output of first heat exchanger. Preheat the material to be distilled by using the heat energy of condensate water, the heat energy is comprehensively utilized, using steam condensate water as cooling tower circulating water, greatly reduces the cost of cooling tower circulating water soft water treatment, achieves the purpose of energy saving and emission reduction, consumption reduction and benefit increase.

Description

Technical Field

[0001] This utility model relates to the field of steam recovery, and in particular to a steam condensate recovery and utilization device. Background Technology

[0002] In the heating distillation process, high-pressure steam generated by a steam boiler is used as a heat source to heat the materials. During this process, the steam generates a large amount of condensate after heat exchange. Currently, the treatment methods for condensate are usually to discharge it directly as wastewater or to collect it and transport it to the boiler room for reuse through pipelines. Direct discharge would increase water resource treatment costs; while collection and return to the boiler room generally have disadvantages such as long transportation distances and high energy consumption.

[0003] The steam condensate meets or even exceeds the soft water standard. During the distillation process, a large amount of water is needed as a cooling medium to cool the gaseous substances. This steam condensate is then used as the circulating water in the cooling tower. The water quality requirement for the circulating water in the cooling tower is soft water that has been decalcified and magnesium removed. Otherwise, scale will form on the cooler, which will seriously affect the cooling effect. Since the steam is produced by heating soft water, the steam condensate is also soft water, which can fully meet the quality requirements of the circulating water. Utility Model Content

[0004] The purpose of this invention is to address the problem of wasted steam condensate recovery in the prior art by proposing a steam condensate recovery and utilization device.

[0005] A steam condensate recovery and utilization device includes a distillation component, a condensate storage tank, a pump, a first heat exchanger, a second heat exchanger, a cooling component, and a distillate storage tank. The first output end of the distillation component is connected to the input end of the condensate storage tank, the output end of the condensate storage tank is connected to the first input end of the second heat exchanger, the first output end of the second heat exchanger is connected to the first input end of the cooling component, the output end of the cooling component is connected to the first input end of the first heat exchanger, and the first output end of the first heat exchanger is connected to the second input end of the cooling component. The second output end of the distillation component is connected to the second input end of the first heat exchanger, and the second output end of the first heat exchanger is connected to the input end of the distillate storage tank. The function of the distillation unit is to separate steam condensate using the principle of distillation, producing a relatively pure distillate and residual condensate. The pump's function is to provide the power for fluid transport; The function of a heat exchanger is to facilitate the exchange of heat between two fluids.

[0006] Furthermore, a steam condensate recovery and utilization device, wherein the pump includes a first pump, a second pump, and a third pump; The system consists of a first pump that drives condensate for heat exchange, a second pump that drives cooling water circulation, and a third pump that transports materials to be preheated.

[0007] Furthermore, in a steam condensate recovery and utilization device, the first pump is installed on the connecting pipeline between the condensate storage tank and the second heat exchanger. The second pump is installed on the connecting pipe between the cooling component and the first heat exchanger.

[0008] Furthermore, in a steam condensate recovery and utilization device, the third pump connects the material to be preheated and the second heat exchanger.

[0009] Furthermore, a steam condensate recovery and utilization device also includes a preheating material storage tank; The second output end of the second heat exchanger is connected to the input end of the preheating material storage tank.

[0010] Furthermore, a steam condensate recovery and utilization device, wherein the cooling components include a cooling tower and a circulating water tank; A circulating water pool is installed at the lower end of the cooling tower; The first output end of the second heat exchanger is connected to the first input end of the cooling tower, the output end of the circulating water tank is connected to the first input end of the first heat exchanger, and the first output end of the first heat exchanger is connected to the first input end of the cooling tower. The cooling tower further reduces the temperature of the circulating water through evaporation, while the circulating water pool stores and provides the cooled circulating water.

[0011] Furthermore, in a steam condensate recovery and utilization device, the distillation component is a distillation kettle.

[0012] The beneficial effects of this utility model are as follows: the heat energy of condensate is used to preheat the material to be distilled, thus making comprehensive use of the heat energy; the use of steam condensate as cooling tower circulating water significantly reduces the cost of soft water treatment for cooling tower circulating water, achieving the goals of energy saving, emission reduction, consumption reduction and efficiency improvement; the intelligent pump control is adopted, and the device as a whole has the characteristics of simple structure and convenient operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram, 1-distillation unit, 2-condensate storage tank, 3-pump, 4-first heat exchanger, 5-second heat exchanger, 6-cooling unit, 7-distillate storage tank, 8-preheated material storage tank, 9-material to be preheated, 10-steam, 31-first pump, 32-second pump, 33-third pump, 61-cooling tower, 62-circulating water pool. Detailed Implementation

[0015] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0016] Specific Implementation Example 1: Detection and Composition of Steam Condensate Table 1. Composition of Steam Condensate Testing revealed that the steam condensate met or even exceeded soft water standards. Since the distillation and cooling processes are integrated into a single system, this steam condensate was used as the circulating water for the cooling tower operation.

[0017] Specific Embodiment Two: Structural Composition of a Steam Condensate Recovery and Utilization Device As attached Figure 1 As shown, a steam condensate recovery and utilization device includes a distillation component 1, a condensate storage tank 2, a pump 3, a first heat exchanger 4, a second heat exchanger 5, a cooling component 6, and a distillate storage tank 7. The first output end of the distillation component 1 is connected to the input end of the condensate storage tank 2, the output end of the condensate storage tank 2 is connected to the first input end of the second heat exchanger 5, the first output end of the second heat exchanger 5 is connected to the first input end of the cooling component 6, the output end of the cooling component 6 is connected to the first input end of the first heat exchanger 4, and the first output end of the first heat exchanger 4 is connected to the second input end of the cooling component 6. The second output end of the distillation unit 1 is connected to the second input end of the first heat exchanger 4, and the second output end of the first heat exchanger 4 is connected to the input end of the distillate storage tank 7.

[0018] Pump 3 includes a first pump 31, a second pump 32, and a third pump 33; The first pump 31 is installed on the connecting pipeline between the condensate storage tank 2 and the second heat exchanger 5. The second pump 32 is installed on the connecting pipe between the cooling component 6 and the first heat exchanger 4.

[0019] The third pump 33 connects the material 9 to be preheated and the second heat exchanger 5.

[0020] It also includes a preheated material storage tank 8; The second output end of the second heat exchanger 5 is connected to the input end of the preheating material storage tank 8.

[0021] Cooling component 6 includes a cooling tower 61 and a circulating water tank 62; A circulating water pool 62 is provided at the lower end of the cooling tower 61; The first output end of the second heat exchanger 5 is connected to the first input end of the cooling tower 61, the output end of the circulating water tank 62 is connected to the first input end of the first heat exchanger 4, and the first output end of the first heat exchanger 4 is connected to the first input end of the cooling tower 61. Distillation component 1 is a distillation kettle.

[0022] Specific Embodiment 3: Implementation Principle of a Steam Condensate Recovery and Utilization Device Steam 10 enters the distillation unit 1 to heat the material into condensate, which is collected in the condensate storage tank 2. The high-temperature condensate in the condensate storage tank 2 is pumped into the second heat exchanger 5 by the first pump 31. The heat of the condensate is used by the third pump 33 to heat the material 9 to be preheated. After heating, the material enters the preheated material storage tank 8. The condensate after heat exchange in the second heat exchanger 5 is connected to the cooling tower 61 and enters the circulating water pool 62 to participate in the cooling process.

[0023] The high-temperature condensate is approximately 85 degrees Celsius, while the condensate after heat exchange is approximately 35 degrees Celsius. Cooling water in the circulating water tank 62 is pumped into the first heat exchanger 4 through the second pump 32 to cool the evaporated gas. After heat exchange, the gas returns to the circulating water tank 62 through the cooling tower 61. The distilled gas enters the first heat exchanger 4, is cooled, and becomes liquid, which is then collected in the distillate storage tank 7.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steam condensate recovery and utilization device, characterized in that, It includes a distillation unit (1), a condensate storage tank (2), a pump (3), a first heat exchanger (4), a second heat exchanger (5), a cooling unit (6), and a distillate storage tank (7). The first output end of the distillation component (1) is connected to the input end of the condensate storage tank (2), the output end of the condensate storage tank (2) is connected to the first input end of the second heat exchanger (5), the first output end of the second heat exchanger (5) is connected to the first input end of the cooling component (6), the output end of the cooling component (6) is connected to the first input end of the first heat exchanger (4), and the first output end of the first heat exchanger (4) is connected to the second input end of the cooling component (6). The second output end of the distillation component (1) is connected to the second input end of the first heat exchanger (4), and the second output end of the first heat exchanger (4) is connected to the input end of the distillate storage tank (7).

2. The steam condensate recovery and utilization device as described in claim 1, characterized in that, The pump (3) includes a first pump (31), a second pump (32), and a third pump (33).

3. The steam condensate recovery and utilization device as described in claim 2, characterized in that, The first pump (31) is installed on the connecting pipeline of the condensate storage tank (2) and the second heat exchanger (5); The second pump (32) is installed on the connecting pipe between the cooling component (6) and the first heat exchanger (4).

4. The steam condensate recovery and utilization device as described in claim 2, characterized in that, The third pump (33) connects the material to be preheated (9) and the second heat exchanger (5).

5. The steam condensate recovery and utilization device as described in claim 3, characterized in that, It also includes a preheated material storage tank (8); The second output end of the second heat exchanger (5) is connected to the input end of the preheating material storage tank (8).

6. The steam condensate recovery and utilization device as described in claim 1, characterized in that, The cooling component (6) includes a cooling tower (61) and a circulating water tank (62); A circulating water pool (62) is provided at the lower end of the cooling tower (61); The first output end of the second heat exchanger (5) is connected to the first input end of the cooling tower (61), the output end of the circulating water tank (62) is connected to the first input end of the first heat exchanger (4), and the first output end of the first heat exchanger (4) is connected to the first input end of the cooling tower (61).

7. The steam condensate recovery and utilization device as described in claim 1, characterized in that, The distillation component (1) is a distillation vessel.

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