Condensed water waste heat recycling device

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a condensation water waste heat recycling device which comprises a condensation water tank, a condensation water inlet pipe, an electromagnetic valve and a water injection pipe are arranged on the condensation water tank in a communicating mode, a first connecting pipe is arranged on the condensation water tank in a communicating mode, and a heat exchanger is arranged on the first connecting pipe in a communicating mode. The heat exchanger is connected with a second connecting pipe, the second connecting pipe is communicated with the condensation water tank, a movable plate abuts against the interior of the condensation water tank, a floating part is arranged at the lower end of the movable plate, the condensation water inlet pipe and the first connecting pipe penetrate through the movable plate, and an air guide part is arranged on the movable plate. The waste heat utilization device is favorable for reducing heat loss, and ensures the waste heat utilization effect.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a condensate waste heat recovery and utilization device. Background Art

[0002] When recovering waste heat, the steam passes through various heat exchange devices, and the heated steam condenses and is recovered to the condensate tank. The non-condensable gas is released from the top of the condensate tank, and the condensate is sent out for reuse. Since the temperature of the steam condensate is high after the heat exchange, after entering the condensate tank and reducing the pressure, a large amount of low-pressure steam is generated and discharged from the top vent, causing heat loss. In order to solve this problem, we proposed a condensate waste heat recovery and utilization device. Utility Model Content

[0003] The utility model aims to solve the problem in the prior art that a large amount of low-pressure steam is discharged from the top vent, resulting in heat loss, and proposes a condensate waste heat recovery and utilization device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A condensate waste heat recovery and utilization device is designed, comprising a condensate tank, a condensate inlet pipe, a solenoid valve, and a water injection pipe are connected to the condensate tank, a first connecting pipe is connected to the condensate tank, a heat exchanger is connected to the first connecting pipe, the heat exchanger is connected to a second connecting pipe, the second connecting pipe is communicated with the condensate tank, a movable plate is abutted in the condensate tank, a floating portion is provided at the lower end of the movable plate, the condensate inlet pipe and the first connecting pipe pass through the movable plate, and an air guide portion is provided on the movable plate.

[0006] Preferably, the air guide portion includes a conducting pipe, the conducting pipe can be inserted into the second connecting pipe, a connecting hole is provided on the movable plate, and the conducting pipe is fixedly connected to the connecting hole.

[0007] Preferably, a liquid level gauge is provided on the inner wall of the condensate water tank, a controller is fixedly connected to the condensate water tank, and the controller is connected to the liquid level gauge and the solenoid valve signal.

[0008] Preferably, the condensate tank is connected to a drain valve.

[0009] Preferably, a connecting seat is fixedly connected to the condensate water tank, a rotating shaft is rotatably connected to the connecting seat via a bearing, and a stirring roller is fixedly connected to the rotating shaft.

[0010] Preferably, a gear is fixedly connected to the rotating shaft, a rack is fixedly connected to the rotating shaft, and the rack is fixedly connected to the moving plate.

[0011] Preferably, the floating portion is a hollow structure.

[0012] The utility model proposes a condensate waste heat recovery and utilization device, which has the beneficial effects of: low-pressure steam enters the heat exchanger from the second connecting pipe to recover the waste heat of the low-pressure steam, and then the condensed water enters the condensate tank from the first connecting pipe, and as the water level rises, the movable plate is driven to move upward, which plays an insulating role and reduces the contact area between the steam and the condensate tank, which is beneficial to reduce heat loss and ensure the utilization effect of the waste heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a condensate waste heat recovery and utilization device proposed by the utility model;

[0014] Figure 2 This is a cross-sectional view of a condensate waste heat recovery device proposed by the utility model;

[0015] Figure 3 The present invention is a schematic structural diagram of the rack and pinion portion of a condensate waste heat recovery and utilization device proposed by the present invention.

[0016] In the figure: condensate tank 1, heat exchanger 2, first connecting pipe 3, second connecting pipe 4, condensate inlet pipe 5, solenoid valve 6, liquid level meter 7, conducting pipe 8, movable plate 9, water injection pipe 10, drain valve 11, rack 12, connecting seat 13, stirring roller 14, gear 15, rotating shaft 16, floating part 17. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Example 1

[0019] Reference Figure 1-3 A condensate waste heat recovery and utilization device comprises a condensate tank 1, a condensate inlet pipe 5 is connected to the condensate tank 1, condensate enters from the condensate inlet pipe 5, a liquid level gauge 7 is arranged on the inner wall of the condensate tank 1, a controller is fixedly connected to the condensate tank 1, the controller is connected with the liquid level gauge 7 and a solenoid valve 6 by signal, normal temperature water enters from a water injection pipe 10, and the water level in the condensate tank 1 is monitored. The solenoid valve 6 is opened by the controller, and the solenoid valve 6 is connected to a recovery water pump to recover the discharged water.

[0020] A solenoid valve 6, a water injection pipe 10, and a first connecting pipe 3 are connected to the condensate water tank 1, the first connecting pipe 3 is connected to the heat exchanger 2, the heat exchanger 2 is connected to the second connecting pipe 4, the second connecting pipe 4 is connected to the condensate water tank 1, a movable plate 9 is abutted in the condensate water tank 1, a floating portion 17 is provided at the lower end of the movable plate 9, and the floating portion 17 is a hollow structure to ensure buoyancy.

[0021] The condensate inlet pipe 5 and the first connecting pipe 3 pass through the movable plate 9, and an air guide portion is provided on the movable plate 9. The low-pressure steam enters the heat exchanger 2 from the second connecting pipe 4 to recover the waste heat of the low-pressure steam. Subsequently, the condensed water enters the condensate tank 1 from the first connecting pipe 3. As the water level rises, the movable plate 9 is driven to move upward, thereby playing an insulating role and reducing the contact area between the steam and the condensate tank 1, which is beneficial to reducing heat loss and ensuring the utilization effect of waste heat.

[0022] The air guide part includes a conducting pipe 8, which can be inserted into the second connecting pipe 4. A connecting hole is opened on the movable plate 9, and the conducting pipe 8 is fixedly connected to the connecting hole. By adopting the design of the conducting pipe 8, when the movable plate 9 moves, it still plays a conducting role for the steam.

[0023] When in use, condensate enters from the condensate inlet pipe 5, normal temperature water enters from the water injection pipe 10, and low-pressure steam enters the heat exchanger 2 from the second connecting pipe 4. When the water level in the condensate tank 1 continues to rise, the movable plate 9 is driven to move upward. When the water level reaches the preset water level, the solenoid valve 6 is opened.

[0024] Example 2

[0025] Reference Figure 1-2 As another preferred embodiment of the utility model, on the basis of embodiment 1, a drain valve 11 is connected to the condensate tank 1. The design of the drain valve 11 can play a role in draining sewage so as to discharge the dirt in the condensate tank 1.

[0026] Example 3

[0027] Reference Figure 2-3 As another preferred embodiment of the utility model, on the basis of embodiment 1, a connecting seat 13 is fixedly connected to the condensate tank 1, and a rotating shaft 16 is rotatably connected to the connecting seat 13 through a bearing, and a stirring roller 14 is fixedly connected to the rotating shaft 16. When the movable plate 9 moves, the rack 12 is driven to move, the gear 15 is driven to rotate, and the rotating shaft 16 is driven to rotate, so as to stir the water and ensure that the heat exchange between the normal temperature water and the condensate water is more sufficient.

[0028] The rotating shaft 16 is fixedly connected with a gear 15, the rotating shaft 16 is fixedly connected with a rack 12, the rack 12 is fixedly connected with the moving plate 9, and after the water in the condensate tank 1 is drained, the moving plate 9 will be reset under the action of gravity.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A condensate waste heat recovery device, comprising a condensate tank (1), wherein the condensate tank (1) is connected to a condensate inlet pipe (5), a solenoid valve (6), and a water injection pipe (10), characterized in that: The condensate tank (1) is connected to a first connecting pipe (3), the first connecting pipe (3) is connected to a heat exchanger (2), the heat exchanger (2) is connected to a second connecting pipe (4), the second connecting pipe (4) is connected to the condensate tank (1), a movable plate (9) is abutted inside the condensate tank (1), a floating portion (17) is provided at the lower end of the movable plate (9), the condensate inlet pipe (5) and the first connecting pipe (3) pass through the movable plate (9), and an air guide portion is provided on the movable plate (9).

2. The condensate waste heat recovery and utilization device according to claim 1 is characterized in that: The air guide portion comprises a conduction pipe (8), the conduction pipe (8) can be inserted into the second connection pipe (4), a connection hole is provided on the movable plate (9), and the conduction pipe (8) is fixedly connected to the connection hole.

3. The condensate waste heat recovery and utilization device according to claim 1 is characterized in that: A liquid level meter (7) is arranged on the inner wall of the condensate water tank (1), and a controller is fixedly connected to the condensate water tank (1), and the controller is signal-connected to the liquid level meter (7) and the solenoid valve (6).

4. The condensate waste heat recovery and utilization device according to claim 3 is characterized in that: The condensate tank (1) is connected to a drain valve (11).

5. A condensate waste heat recovery device according to any one of claims 1 to 4, characterized in that: The condensate water tank (1) is fixedly connected to a connecting seat (13), a rotating shaft (16) is rotatably connected to the connecting seat (13) via a bearing, and a stirring roller (14) is fixedly connected to the rotating shaft (16).

6. The condensate waste heat recovery and utilization device according to claim 5, characterized in that: A gear (15) is fixedly connected to the rotating shaft (16), a rack (12) is fixedly connected to the rotating shaft (16), and the rack (12) is fixedly connected to the moving plate (9).

7. The condensate waste heat recovery and utilization device according to claim 1 is characterized in that: The floating portion (17) is a hollow structure.

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