Steam condensate recycling system for coking system

Abstract

The utility model belongs to the field of coking waste liquid utilization, and relates to a steam condensate recycling system for a coking system, which comprises a demineralized water pipe, a constant-pressure water supply point and a primary demineralized water pipe network, the demineralized water pipe is connected with a condensate tank, the condensate tank is connected with a condensate pipe, and the condensate tank is connected with a condensate pump. A monitoring and analyzing device is arranged between the condensate water tank and the condensate pump, and the condensate pump is connected with the first-stage demineralized water pipe network. By improving the utilization efficiency of the steam condensate, the water supply cost of the demineralized water station is reduced, the water supply pressure of the first-stage demineralized water pipe network is stabilized, and objective economic benefits are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of coking waste liquid utilization, and relates to a steam condensate recovery and utilization system for a coking system. Background Art

[0002] At present, the steam condensate produced by coking is collected and collected in the condensate tank. When the condensate tank rises to a certain level, the condensate is pumped to the circulating water pool through the condensate pump to replenish the circulating water cooling tower. The condensate is of high quality and can be directly supplied and used as demineralized water. Therefore, the use of high-quality steam condensate as circulating water pool replenishment causes waste. At the same time, the primary demineralized water pipeline network is supplied by the demineralized water station, which has a high production cost. The invention application with the existing application number CN202211197465.1, a method and system for recovering high-temperature condensate water in a coking plant includes a heat exchanger, an industrial water tank, an ultrafiltration product water tank, a secondary reverse osmosis product water tank and a throttle valve; a spray device is provided on the top of the secondary reverse osmosis product water tank; one end of the first heat exchange medium channel of the heat exchanger is connected to the condensate pipeline, and the other end is connected to the ultrafiltration product water tank; one end of the second heat exchange medium channel of the heat exchanger is connected to the industrial water pipeline, and the other end is connected to the first inlet of the ejector; the second inlet of the ejector is connected to the secondary reverse osmosis water production pipeline, and the outlet of the ejector is connected to the water inlet end of the spray device; a throttle valve is provided at the end of the industrial water pipeline close to the heat exchanger.

[0003] The prior art has the following technical defects:

[0004] The above technical solution recognizes the value of high-temperature condensate, but the above solution only records how to collect and store high-quality condensate, and does not record how the stored condensate is mixed with desalted water and supplied to users, thereby reducing the cost of desalted water supply. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a steam condensate recovery and utilization system for a coking system.

[0006] The utility model discloses a steam condensate recovery and utilization system for a coking system, comprising a desalted water pipe, a constant pressure water supply point and a primary desalted water network, wherein the desalted water pipe is connected to a condensate water tank, the condensate water tank is connected to a condensate pipe, the condensate water tank is connected to a condensate pump, a monitoring and analysis device is provided between the condensate water tank and the condensate pump, and the condensate pump is connected to the primary desalted water network.

[0007] Working process or working principle:

[0008] During operation, high-temperature condensate flows from the condensate pipe into the condensate water tank, and desalted water enters the condensate water tank through the desalted water pipe at the same time to mix with the condensate. The high-temperature condensate is cooled to a temperature that meets user requirements by the desalted water, and then the mixed liquid in the condensate water tank is pumped into the primary desalted water network by the condensate pump, and transported through the constant pressure water supply point. When the condensate pump is working, the monitoring and analysis device monitors and analyzes the pumped liquid at all times to ensure that the quality of the liquid meets user requirements.

[0009] The desalted water pipe and condensate pipe are connected to the condensate water tank with an automatic water inlet regulating valve, which is automatically controlled during operation and acts as a variable resistance in the pipeline to adjust the medium's pressure, flow, temperature and other parameters.

[0010] There are two condensation water tanks, and both condensation water tanks are connected with the desalted water pipe, the condensate pipe and the condensation water tank.

[0011] There are two condensate pumps, both of which are connected to the condensate tank and the primary desalted water network. One is the main pump and the other is the backup pump. When one pump fails to work, the backup pump is immediately activated to ensure the supply demand and avoid total interruption.

[0012] The monitoring and analysis device is an online conductivity analyzer, which ensures the water supply quality and improves the stability of the device operation.

[0013] The condensate pump is provided with a voltage-stabilizing and regulating frequency converter, through which the condensate pump can realize automatic speed regulation and energy saving, and is suitable for complex industrial automation application scenarios.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model reduces the water supply cost of the desalted water station by improving the utilization efficiency of the steam condensate, stabilizes the water supply pressure of the primary desalted water pipe network, and achieves objective economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0017] In the figure: 1. Condensate pipe; 2. Desalted water pipe; 3. Automatic regulating valve; 4. Condensate tank; 5. Online conductivity analyzer; 6. Condensate pump; 7. Primary desalted water network; 8. Constant pressure water supply point. DETAILED DESCRIPTION

[0018] Example 1

[0019] like Figure 1As shown, the steam condensate recovery and utilization system for the coking system described in the utility model comprises a desalted water pipe, a constant pressure water supply point and a primary desalted water network, the desalted water pipe is connected to a condensate water tank, the condensate water tank is connected to a condensate pipe, the condensate water tank is connected to a condensate pump, a monitoring and analysis device is provided between the condensate water tank and the condensate pump, and the condensate pump is connected to the primary desalted water network; an automatic water inlet regulating valve is connected between the desalted water pipe and the condensate pipe and the condensate water tank, and the automatic water inlet regulating valve is automatically controlled during operation to play a role of variable resistance in the pipeline to adjust the pressure, flow, temperature and other parameters of the medium; the condensate water tank is provided with a monitoring and analysis device. There are two, both condensate tanks are connected to the desalted water pipe, condensate pipe and condensate tank; there are two condensate pumps, both condensate pumps are connected to the condensate tank and the primary desalted water network, one is the main pump and the other is the standby pump. When one pump fails to work, the standby pump is immediately activated to ensure the supply demand and avoid total interruption; the monitoring and analysis device is an online conductivity analyzer to ensure the water supply quality and improve the stability of the device operation; the condensate pump is provided with a voltage stabilizing and regulating frequency converter, which can realize automatic speed regulation and energy saving of the condensate pump, and is suitable for complex industrial automation application scenarios.

[0020] Working process or working principle:

[0021] During operation, high-temperature condensate flows from the condensate pipe into the condensate water tank, and desalted water enters the condensate water tank through the desalted water pipe at the same time to mix with the condensate. The high-temperature condensate is cooled to a temperature that meets user requirements by the desalted water, and then the mixed liquid in the condensate water tank is pumped into the primary desalted water network by the condensate pump, and transported through the constant pressure water supply point. When the condensate pump is working, the monitoring and analysis device monitors and analyzes the pumped liquid at all times to ensure that the quality of the liquid meets user requirements.

[0022] The utility model reduces the water supply cost of the desalted water station by improving the utilization efficiency of the steam condensate, stabilizes the water supply pressure of the primary desalted water pipe network, and achieves objective economic benefits.

[0023] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A steam condensate recovery system for a coking system, comprising a desalted water pipe (2), a constant pressure water supply point (8) and a primary desalted water pipe network (7), characterized in that: The desalted water pipe (2) is connected to a condensate water tank (4), the condensate water tank (4) is connected to a condensate pipe (1), the condensate water tank (4) is connected to a condensate pump (6), a monitoring and analysis device is provided between the condensate water tank (4) and the condensate pump (6), and the condensate pump (6) is connected to a primary desalted water pipe network (7).

2. The steam condensate recovery and utilization system for a coking system according to claim 1, characterized in that: An automatic water inlet regulating valve (3) is connected between the desalted water pipe (2) and the condensate pipe (1) and the condensate water tank (4).

3. The steam condensate recovery and utilization system for a coking system according to claim 2, characterized in that: There are two condensation water tanks (4), and both condensation water tanks (4) are connected to the desalted water pipe (2), the condensate pipe (1) and the condensation water tank (4).

4. The steam condensate recovery and utilization system for a coking system according to claim 3, characterized in that: There are two condensate pumps (6), and both condensate pumps (6) are connected to the condensate water tank (4) and the primary desalted water pipe network (7).

5. The steam condensate recovery and utilization system for a coking system according to any one of claims 1 to 4, characterized in that: The monitoring and analysis device is an online conductivity analyzer (5).

6. The steam condensate recovery and utilization system for a coking system according to claim 5, characterized in that: The condensate pump (6) is provided with a voltage stabilizing and regulating frequency converter.

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