A waste heat recovery heat pump condensate recycling switching and reusing device

Abstract

This utility model relates to a waste heat recovery heat pump condensate recovery and reuse device, belonging to the field of energy-saving and environmental protection technology. It includes a condensate recovery system for collecting waste heat recovery heat pump condensate, and an pH switching and reuse mechanism. The pH switching and reuse mechanism includes a heat exchange mechanism for receiving the waste heat recovery heat pump condensate from the condensate recovery system and recovering its waste heat; and a pH switching mechanism. This device utilizes the condensate recovery system to recover waste heat recovery heat pump condensate, and through the pH switching and reuse mechanism, firstly, the pH value of the recovered heat pump condensate is neutralized to make it suitable for use and discharge, and then the waste heat is collected through the heat exchange mechanism, maximizing the utilization of waste heat recovery heat pump condensate, which is beneficial for saving water costs and reducing environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of energy conservation and environmental protection technology, and in particular to a waste heat recovery heat pump condensate recovery switching and reuse device. Background Technology

[0002] A waste heat recovery heat pump is a device that extracts heat from a low-temperature heat source using the reverse Carnot cycle principle and raises it to a higher temperature using a compressor. The generation of condensate in a heat pump primarily depends on the operating principle of the heat pump system. The heat pump system absorbs heat from the environment through an evaporator. The surface temperature of the evaporator is typically lower than the dew point temperature of the ambient humidity, causing water vapor in the air to condense into water on its surface. This condensate is usually discharged from the system through a drain pipe.

[0003] In existing technologies, heat pump condensate is typically discharged directly for treatment. This method wastes water resources, and because heat pump condensate is usually acidic with a low pH value, long-term contact may damage the skin and the equipment. Furthermore, improper treatment can pollute the environment. Therefore, recycling and reusing it will help save water costs and reduce environmental pollution.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a waste heat recovery heat pump condensate recovery switching and reuse device. Utility Model Content

[0005] The purpose of this invention is to provide a waste heat recovery heat pump condensate recovery switching and reuse device to solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a waste heat recovery heat pump condensate recovery and switching reuse device, including a condensate recovery system for collecting waste heat recovery heat pump condensate, and also includes an acidity / alkalinity switching reuse mechanism.

[0008] The pH switching and reuse mechanism includes:

[0009] A heat exchange mechanism is used to receive the waste heat recovery heat pump condensate in the condensate recovery system and recover the waste heat from the waste heat recovery heat pump condensate; and

[0010] A pH switching mechanism is installed between the condensate recovery system and the heat exchange mechanism to neutralize the acidic water in the waste heat recovery heat pump condensate before sending it to the heat exchange mechanism for heat exchange treatment.

[0011] Furthermore, the heat exchange mechanism includes:

[0012] Heat exchange tank, the interior of which is used to hold heat for heat exchange; and

[0013] An internal coil is installed inside the heat exchange tank to allow condensate from the waste heat recovery heat pump to pass through, and both ends of the internal coil extend outside the heat exchange tank.

[0014] Furthermore, the heat exchange tank is provided with a hot water inlet at the top and a hot water outlet at the bottom.

[0015] Furthermore, the two ends of the internal coil extending outside the heat exchange tank are respectively the condensate inlet and the condensate outlet of the waste heat recovery heat pump.

[0016] Furthermore, the pH switching mechanism includes a disc-shaped cavity, with a neutralizing liquid inlet at the top of the disc-shaped cavity, and water inlet and outlet pipes connected to both sides of the disc-shaped cavity along the tangential direction.

[0017] The water inlet pipe of the disc-shaped cavity is connected to the water outlet of the condensate recovery system, and the water outlet pipe of the disc-shaped cavity is connected to the condensate inlet of the waste heat recovery heat pump.

[0018] In the above technical solution, the waste heat recovery heat pump condensate recovery switching and reuse device provided by this utility model has the following beneficial effects:

[0019] This device utilizes a condensate recovery system to recover waste heat from heat pump condensate. Through an acid-base switching and reuse mechanism, the pH value of the recovered heat pump condensate is first neutralized to make it suitable for use and discharge. Then, the waste heat is collected through a heat exchange mechanism, maximizing the utilization of waste heat to recover heat pump condensate. This is beneficial for saving water costs and reducing environmental pollution. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the structure of a waste heat recovery heat pump condensate recovery switching and reuse device provided in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the acid-base switching mechanism of a waste heat recovery heat pump condensate recovery and reuse device provided in an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Condensate recovery system; 2. Heat exchange tank; 3. Internal coil; 4. Hot water inlet; 5. Hot water outlet; 6. Condensate inlet of waste heat recovery heat pump; 7. Condensate outlet of waste heat recovery heat pump; 8. Disc-shaped cavity; 9. Neutralization liquid inlet; 10. Water inlet pipe; 11. Water outlet pipe. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-2 A waste heat recovery heat pump condensate recovery and reuse device includes a condensate recovery system 1, which is used to collect waste heat recovery heat pump condensate. The condensate recovery system refers to the pipeline system and equipment in which steam releases heat and condenses in the heat-using equipment, and the condensate flows out of the heat-using equipment and returns to the heat source through a steam trap and condensate pipe. It also includes an acidity-alkalinity switching and reuse mechanism, which neutralizes the acidity and alkalinity of the waste heat recovery heat pump condensate before reuse, so as to avoid equipment corrosion caused by the use of waste heat recovery heat pump condensate or environmental pollution caused by discharge.

[0027] The acid-base switching and reuse mechanism includes:

[0028] A heat exchange mechanism is used to receive the waste heat recovery heat pump condensate in the condensate recovery system 1 and recover the waste heat from the waste heat recovery heat pump condensate, so as to achieve the purpose of waste heat recovery for other uses; and

[0029] The acid-base switching mechanism is set between the condensate recovery system 1 and the heat exchange mechanism to neutralize the acidic water in the waste heat recovery heat pump condensate of the condensate recovery system 1 before sending it to the heat exchange mechanism for heat exchange treatment, so as to avoid equipment corrosion caused by the use of acidic waste heat recovery heat pump condensate or environmental pollution caused by discharge.

[0030] Furthermore, the heat exchange mechanism includes:

[0031] Heat exchange tank 2, the interior of heat exchange tank 2 is used to hold heat for heat exchange; and

[0032] The internal coil 3 is installed inside the heat exchange tank 2 to allow the waste heat recovery heat pump condensate to pass through. Both ends of the internal coil 3 extend outside the heat exchange tank 2.

[0033] Furthermore, the heat exchange tank 2 is provided with a hot water inlet 4 at the top and a hot water outlet 5 at the bottom.

[0034] Furthermore, the two ends of the internal coil 3 extending outside the heat exchange tank 2 are respectively the condensate inlet 6 and the condensate outlet 7 of the waste heat recovery heat pump.

[0035] Specifically, the waste heat recovery heat pump condensate with residual heat enters the internal coil 3 from the waste heat recovery heat pump condensate inlet 6 and is then discharged from the waste heat recovery heat pump condensate outlet 7. During this process, low-temperature hot water enters the heat exchange tank 2 from the hot water inlet 4 and exchanges heat with the waste heat recovery heat pump condensate flowing in the internal coil 3. The hot water that has absorbed heat and increased in temperature is discharged from the hot water outlet 5 for waste heat reuse.

[0036] Furthermore, the pH switching mechanism includes a disc-shaped cavity 8, a neutralizing liquid inlet 9 at the top of the disc-shaped cavity 8, and water inlet pipes 10 and water outlet pipes 11 connected to both sides of the disc-shaped cavity 8 along the tangential direction.

[0037] The water inlet pipe 10 of the disc-shaped cavity 8 is connected to the water outlet of the condensate recovery system 1, and the water outlet pipe 11 of the disc-shaped cavity 8 is connected to the condensate inlet 6 of the waste heat recovery heat pump.

[0038] Specifically, before the condensate from the waste heat recovery heat pump enters the internal coil 3 from the condensate recovery system 1, it is drawn back and directed into the disc-shaped cavity 8. During this process, the condensate enters the disc-shaped cavity 8 tangentially from the inlet pipe 10, causing the condensate inside the disc-shaped cavity 8 to swirl, essentially creating a stirring state. Meanwhile, an acid-base neutralizing solution is injected into the disc-shaped cavity 8 from the neutralizing liquid inlet 9 to neutralize the acidity or alkalinity of the condensate. Finally, it is discharged tangentially from the outlet pipe 11 and enters the internal coil 3 through the waste heat recovery heat pump condensate inlet 6 for heat exchange. This neutralized condensate will not corrode the internal coil 3, allowing for water reuse, and will not pollute the environment after discharge.

[0039] In summary, this device utilizes a condensate recovery system to recover waste heat from the heat pump condensate. Through an acid-base switching and reuse mechanism, the pH of the recovered heat pump condensate is first neutralized to make it suitable for use and discharge. Then, waste heat is collected through a heat exchange mechanism, maximizing the utilization of waste heat to recover the heat pump condensate. This approach helps save on water costs and reduces environmental pollution.

[0040] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A waste heat recovery heat pump condensate recovery and reuse device, comprising a condensate recovery system (1), wherein the condensate recovery system (1) is used to collect waste heat recovery heat pump condensate, characterized in that, It also includes a pH switching and reuse mechanism; The pH switching and reuse mechanism includes: A heat exchange mechanism is used to receive the waste heat recovery heat pump condensate in the condensate recovery system (1) and recover the waste heat of the waste heat recovery heat pump condensate; and A pH switching mechanism is provided between the condensate recovery system (1) and the heat exchange mechanism to neutralize the acidic water in the waste heat recovery heat pump condensate of the condensate recovery system (1) before sending it to the heat exchange mechanism for heat exchange treatment.

2. The waste heat recovery heat pump condensate recovery switching and reuse device according to claim 1, characterized in that, The heat exchange mechanism includes: Heat exchange tank (2), the interior of which is used to hold heat for heat exchange; and An internal coil (3) is installed inside the heat exchange tank (2) to allow the waste heat recovery heat pump condensate to pass through. Both ends of the internal coil (3) extend outside the heat exchange tank (2).

3. The waste heat recovery heat pump condensate recovery switching and reuse device according to claim 2, characterized in that, The heat exchange tank (2) is provided with a hot water inlet (4) at the top and a hot water outlet (5) at the bottom.

4. The waste heat recovery heat pump condensate recovery switching and reuse device according to claim 2, characterized in that, The two ends of the internal coil (3) extending outside the heat exchange tank (2) are respectively the condensate inlet (6) and the condensate outlet (7) of the waste heat recovery heat pump.

5. The waste heat recovery heat pump condensate recovery switching and reuse device according to claim 4, characterized in that, The pH switching mechanism includes a disc-shaped cavity (8), with a neutralizing liquid inlet (9) at the top of the disc-shaped cavity (8), and water inlet pipe (10) and water outlet pipe (11) connected to both sides of the disc-shaped cavity (8) along the tangential direction. The water inlet pipe (10) of the disc-shaped cavity (8) is connected to the water outlet of the condensate recovery system (1), and the water outlet pipe (11) of the disc-shaped cavity (8) is connected to the condensate inlet (6) of the waste heat recovery heat pump.

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