Chemical steam condensate recovery system

Abstract

The utility model relates to the technical field of condensate water recovery, in particular to a chemical steam condensate water recovery system which comprises two recovery pipelines arranged in parallel, a Y-shaped filter and a magnetic filter are sequentially arranged on each pipeline, the recovery pipelines are further communicated with a water collection tank, and the tail ends of the recovery pipelines are connected with a recovery tank through detection pipes. A pressure sensor is arranged in the detection pipe, a stirring device and a water quality detection sensor are arranged in the recovery tank, a water return pipe of the recovery tank is communicated with the water inlet pipe, and a water return pump is fixedly connected to the water return pipe. The system is matched with a backwashing device composed of a drainage three-way valve, a water pumping three-way valve and a water collecting tank, non-stop maintenance is achieved, automatic water quality monitoring is achieved by arranging a stirring device and a water quality detection sensor in the recycling tank, and the problems that a traditional system needs to be shut down for cleaning and recycled water quality does not reach the standard are solved.

Description

Technical Field

[0001] This utility model relates to the field of condensate recovery technology, specifically a chemical steam condensate recovery system. Background Technology

[0002] In chemical production processes, the recovery and reuse of steam condensate is of great significance for energy conservation and emission reduction. Traditional condensate recovery systems typically employ a single-pipe design and are equipped with mechanical filters to remove impurities. However, these systems have significant shortcomings in actual operation: firstly, the filters are prone to clogging due to impurity buildup, leading to a drop in system pressure and reduced recovery efficiency, requiring frequent shutdowns for cleaning and affecting production continuity; secondly, real-time monitoring of the recovered water quality is impossible, potentially resulting in equipment contamination due to substandard water quality. Therefore, it is essential to develop a chemical steam condensate recovery system that can be maintained without shutdown and ensures the quality of the recovered water. Utility Model Content

[0003] To address the above technical problems, this utility model provides a chemical steam condensate recovery system that can be maintained without shutting down and ensures the quality of the recovered water, thereby solving the problem that existing condensate recovery equipment requires intermittent shutdowns for maintenance and cleaning and that the quality of the recovered water does not meet standards.

[0004] To solve the above-mentioned technical problems, the present invention provides a chemical steam condensate recovery system, comprising two recovery pipelines arranged in parallel. The first end of each recovery pipeline is connected to an inlet pipe via an inlet three-way valve, and the last end is connected to a recovery tank via an outlet three-way valve. A Y-type filter and a magnetic filter are sequentially installed on the recovery pipeline. The recovery pipeline is connected to a collection tank via a drain pipe and a pumping pipe. The outlet three-way valve and the recovery tank are connected via a detection pipe, in which a pressure sensor is installed. A water quality sensor is installed in the recovery tank. A drain pipe and a return water pipe are connected to the bottom of the recovery tank. The return water pipe is connected to the inlet pipe, and a return water pump is fixedly connected to the return water pipe. A drain valve is fixedly connected to the drain pipe, and a return water valve is fixedly connected to the return water pipe. The pressure sensor and the water quality sensor are communicatively connected to a controller. The inlet three-way valve, outlet three-way valve, drain three-way valve, pumping three-way valve, drain valve, and return water valve are all controlled by the controller.

[0005] Furthermore, the drain pipe is located in the front section of the Y-type filter, and the pumping pipe is located in the rear section of the magnetic filter.

[0006] Furthermore, the drain pipe is connected to the inlet of the water collection tank via a drain three-way valve, and the pumping pipe is connected to the outlet of the water collection tank via a pumping three-way valve. A pumping pump is fixedly connected to the drain three-way valve, the pumping three-way valve, and the pipes connecting to the water collection tank.

[0007] Furthermore, the water collection tank is equipped with several filter layers, and the filter layers are filled with activated carbon.

[0008] Furthermore, the recycling tank is also equipped with a stirring device, which includes a stirring motor and a stirring paddle. The stirring motor is fixedly connected to the top of the recycling tank, and the output shaft of the stirring motor passes through the top of the recycling tank and is fixedly connected to the stirring paddle extending into the interior of the recycling tank. The stirring motor is controlled by the controller.

[0009] Furthermore, the return water pipe is connected to the inlet water pipe via a three-way valve.

[0010] This utility model has the following advantages compared with the prior art:

[0011] 1. This utility model adopts a parallel dual-pipeline design, with a Y-type filter and a magnetic filter respectively, which can effectively intercept mechanical impurities and metal particles, ensuring the purity of condensate. The pressure sensor can detect the pipeline pressure changes in real time, and when one of the filters is blocked, it can automatically switch to the backup pipeline in conjunction with the controller. At the same time, the water stored in the water collection tank is used to backwash and clean the blocked pipeline in real time, which can ensure the continuous operation of the system, reduce the frequency of manual maintenance, and improve production efficiency.

[0012] 2. This utility model, through the coordinated operation of a water quality detection sensor and a stirring device, can ensure the quality of recycled water and automatically select discharge or recycling for further treatment based on the water quality, thereby improving resource utilization.

[0013] 3. This utility model utilizes multiple activated carbon filter layers installed in the water collection tank to enable the reuse of backwash water, thereby reducing water waste. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of a recycling pipeline structure according to this utility model.

[0016] In the diagram: 1. Recycling pipe, 2. Y-type filter, 3. Magnetic filter, 4. Drain pipe, 5. Drain three-way valve, 6. Pumping pipe, 7. Pumping three-way valve, 8. Water collection tank, 9. Pumping pump, 10. Inlet three-way valve, 11. Outlet three-way valve, 12. Inlet pipe, 13. Detection pipe, 14. Pressure sensor, 15. Recycling tank, 16. Stirring device, 1601. Stirring motor, 1602. Stirring paddle, 17. Water quality detection sensor, 18. Drain pipe, 19. Drain valve, 20. Return water pipe, 21. Return water valve. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 2 The illustrated chemical steam condensate recovery system includes two parallel recovery pipelines 1, each covered with an insulation layer. The first end of each pipeline is connected to an inlet pipe 12 via an inlet three-way valve 10, and the last end is connected to a recovery tank 15 via an outlet three-way valve 11. A Y-type filter 2 and a magnetic filter 3 are sequentially installed on each recovery pipeline 1. To avoid frequent filter disassembly and maintenance, the recovery pipeline 1 is connected to a collection tank 8 via a drain pipe 4 and a pumping pipe 6. During operation, the water in the collection tank 8 can be used to backwash and clean the filters. The outlet three-way valve 11 is connected to the recovery tank 15 via a detection pipe 13 to promptly detect the water pressure flowing through the detection pipe 13 and determine the filter's current position. The system operates as follows: a pressure sensor 14 is installed inside the detection tube 13, and a water quality sensor 17 is installed inside the recovery tank 15. The bottom of the recovery tank 15 is connected to a drain pipe 18 and a return water pipe 20. To improve the recovery effect, the return water pipe 20 is connected to the inlet pipe 12. A return water pump is fixedly connected to the return water pipe 20. A drain valve 19 is fixedly connected to the drain pipe 18, and a return water valve 21 is fixedly connected to the return water pipe 20. The pressure sensor 14 and the water quality sensor 17 are connected to the controller. The controller is located on the outside of the system in a convenient position for operation. The inlet three-way valve 10, the outlet three-way valve 11, the drain three-way valve 5, the pumping three-way valve 7, the drain valve 19, and the return water valve 21 are all controlled by the controller.

[0019] To ensure the reliable implementation of the backflushing process, drain pipe 4 is located in the pipeline before Y-type filter 2, and pumping pipe 6 is located in the pipeline after magnetic filter 3. Drain pipe 4 is connected to the inlet of water collection tank 8 through drain three-way valve 5, and pumping pipe 6 is connected to the outlet of water collection tank 8 through pumping three-way valve 7. Pumping pump 9 is fixedly connected to the pipelines connecting drain three-way valve 5, pumping three-way valve 7 and water collection tank 8.

[0020] To avoid the backwash water containing a large amount of impurities and to enable the backwash water to be reused multiple times, the water collection tank 8 has a water inlet on the top and a drain outlet on the lower side. The water collection tank 8 is initially filled with water through the water inlet, and after a certain number of uses, the water is drained and replaced through the drain outlet. The water collection tank 8 is equipped with several filter layers, and the filter layers are filled with activated carbon.

[0021] To ensure the reliability of water quality test results, a stirring device 16 is also installed inside the recycling tank 15. The stirring device 16 includes a stirring motor 1601 and a stirring paddle 1602. The stirring motor 1601 is fixedly connected to the top of the recycling tank. The output shaft of the stirring motor 1601 passes through the top of the recycling tank and is fixedly connected to the stirring paddle 1602 extending into the inside of the recycling tank. The stirring motor 1601 is controlled by a controller.

[0022] To ensure the reliability of the device, the return water pipe 20 and the inlet water pipe 12 are connected by a three-way valve.

[0023] The working process of this embodiment is as follows:

[0024] Steam condensate first enters one of the recovery pipes 1 through the inlet three-way valve 10, and then flows sequentially through the Y-type filter 2 and the magnetic filter 3 for impurity filtration. The Y-type filter 2 removes the main impurity particles, and the magnetic filter 3 removes the main metal particles. The filtered water then enters the recovery tank 15 through the outlet three-way valve 11 and the detection pipe 13. The pressure sensor 14 monitors the pipe pressure of the detection pipe 13 in real time. When the real-time detected water pressure is lower than the preset value, it indicates that the recovery pipe 1 is blocked. At this time, the controller switches the inlet three-way valve 10 and the outlet three-way valve 11 to the other position. Simultaneously, the corresponding three-way valve 7, three-way valve 5, and pump 9 are activated to draw water from the collection tank 8 to backwash the recycling pipeline 1, which has stopped working after the switch. At the same time, the stirring device 16 in the recycling tank 15 evenly mixes the filtered condensate. The condensate in the device is periodically detected by the water quality detection sensor 17. After the water quality meets the standard, the drain valve 19 on the drain pipe 18 is opened to discharge the condensate through the drain pipe 18. If the water quality does not meet the standard, the return valve 21 on the return water pipe 20 is opened, and the return water pump is used to send the water back to the system through the return water pipe 20 for filtration again.

Claims

1. A chemical steam condensate recovery system, characterized in that: The system includes two parallel recovery pipelines (1). The first end of each recovery pipeline (1) is connected to the inlet pipe (12) via an inlet three-way valve (10), and the last end is connected to the recovery tank (15) via an outlet three-way valve (11). A Y-type filter (2) and a magnetic filter (3) are sequentially installed on each recovery pipeline (1). The recovery pipeline (1) is connected to the water collection tank (8) via a drain pipe (4) and a pumping pipe (6). The outlet three-way valve (11) and the recovery tank (15) are connected via a detection pipe (13). A pressure sensor (14) is installed inside the detection pipe (13), and a water quality detection sensor is installed inside the recovery tank (15). The device (17) has a drain pipe (18) and a return water pipe (20) connected to the bottom of the recycling tank (15). The return water pipe (20) is connected to the inlet pipe (12). A return water pump is fixedly connected to the return water pipe (20). A drain valve (19) is fixedly connected to the drain pipe (18), and a return water valve (21) is fixedly connected to the return water pipe (20). The pressure sensor (14) and the water quality detection sensor (17) are connected to the controller. The inlet three-way valve (10), the outlet three-way valve (11), the drain three-way valve (5), the pumping three-way valve (7), the drain valve (19), and the return water valve (21) are all controlled by the controller.

2. The chemical steam condensate recovery system according to claim 1, characterized in that: The drain pipe (4) is located in the front section of the Y-type filter (2), and the pumping pipe (6) is located in the rear section of the magnetic filter (3).

3. The chemical steam condensate recovery system according to claim 2, characterized in that: The drain pipe (4) is connected to the inlet of the water collection tank (8) through the drain three-way valve (5), and the pumping pipe (6) is connected to the outlet of the water collection tank (8) through the pumping three-way valve (7). A pumping pump (9) is fixedly connected to the pipes connecting the drain three-way valve (5), the pumping three-way valve (7) and the water collection tank (8).

4. The chemical steam condensate recovery system according to claim 1, characterized in that: The water collection tank (8) is equipped with several filter layers, and the filter layers are filled with activated carbon.

5. The chemical steam condensate recovery system according to claim 1, characterized in that: The recycling tank (15) is also equipped with a stirring device (16), which includes a stirring motor (1601) and a stirring paddle (1602). The stirring motor (1601) is fixedly connected to the top of the recycling tank. The output shaft of the stirring motor (1601) passes through the top of the recycling tank and is fixedly connected to the stirring paddle (1602) extending into the inside of the recycling tank. The stirring motor (1601) is controlled by the controller.

6. The chemical steam condensate recovery system according to claim 1, characterized in that: The return water pipe (20) and the inlet water pipe (12) are connected by a three-way valve.

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