Condensate water heat energy efficient recovery device

Abstract

The utility model relates to a condensate water heat recovery technology, in particular to a condensate water heat energy efficient recovery device which comprises a mixing barrel, the mixing barrel is communicated with a cold water inlet pipe, a condensate water outlet pipe and a warm water outlet pipe, the cold water inlet pipe is communicated with a cold water source, and a water pump is arranged in an evaporator water collecting tray. A vertical pipe with a closed lower end is vertically arranged in the mixing barrel, the vertical pipe is vertically connected and communicated with a plurality of transverse pipes in the height direction, the outer ends of the transverse pipes are closed, and the transverse pipes are provided with a plurality of water outlet nozzles in the length direction; the upper end of the vertical pipe penetrates out of the mixing barrel and is communicated with the condensate water outlet pipe, and the vertical pipe is driven by a driving device to rotate along the vertical axis of the vertical pipe. According to the device, on the premise that heat energy in condensate water is efficiently recycled, the condensate water and cold water can be better mixed, then the temperature of flowing-out water is uniform, the phenomenon that the water is suddenly cold and suddenly hot is avoided, and meanwhile particles in the condensate water can be filtered to prevent the particles from blocking a pipeline subsequently.

Description

Technical Field

[0001] This utility model belongs to the field of condensate heat recovery technology, specifically a high-efficiency condensate heat energy recovery device. Background Technology

[0002] Condensate is liquid water formed from water vapor through the condensation process. It flows out from the collection pan below the evaporator. The condensate is often quite hot when it flows out, approaching 90 degrees Celsius. Directly discharging water at this temperature would be wasteful.

[0003] Therefore, existing methods often involve transporting condensate to a heat exchanger to exchange heat with cold water, thereby providing warm water for heating. However, this method results in some heat loss due to the heat transfer process through the heat exchanger.

[0004] While directly mixing condensate and hot water and then transporting it reduces heat loss, it also results in uneven distribution of hot water, as the temperature is higher at the point where the hot water directly meets and lower at the point further away. Utility Model Content

[0005] This invention provides a high-efficiency condensate heat energy recovery device to overcome the deficiencies in the prior art.

[0006] This utility model is achieved through the following technical solution:

[0007] A high-efficiency condensate heat recovery device includes a top-sealed mixing tank. The mixing tank is connected to a cold water inlet pipe, a condensate outlet pipe, and a warm water outlet pipe. The cold water inlet pipe is connected to a cold water source, and the inlet end of the condensate outlet pipe is connected to a water pump, which is installed in the evaporator's water collection pan. A vertically arranged vertical pipe with a closed lower end is installed inside the mixing tank. The vertical pipe is vertically connected to several horizontal pipes along its height direction. The outer ends of the horizontal pipes are closed, and several water outlet nozzles are arranged along their length direction. The upper end of the vertical pipe extends out of the mixing tank and is connected to the condensate outlet pipe. The vertical pipe is driven by a driving device to rotate along its vertical axis.

[0008] In use, cold water enters the mixing tank through the cold water inlet pipe, while hot condensate enters the vertical pipe through the condensate outlet pipe via the water pump on the evaporator's water collection pan. The condensate then enters the horizontal pipe and is sprayed out from the water outlet nozzle. Since the horizontal pipe is distributed along the height of the vertical pipe and the water outlet nozzle is set along the length of the horizontal pipe, hot water is distributed in most parts of the mixing tank. Then, the rotation of the vertical pipe drives the horizontal pipe to rotate along the vertical pipe, further stirring the hot and cold water in the mixing tank, thereby making the mixed water temperature uniform, and flowing out into the heating area through the warm water outlet pipe.

[0009] Preferably, the condensate outlet pipe is vertically connected to the main inlet pipe. Both ends of the main inlet pipe are bent and connected to branch pipes via flanges. The other ends of the branch pipes are connected to the main outlet pipe via flanges. The main outlet pipe is vertically connected to a connecting pipe, the other end of which is bent and rotatably connected to the vertical pipe via a sealed bearing. The vertical pipe is rotatably connected to the top of the mixing tank via a bearing. A filter screen is installed inside the branch pipes. Inlet valves and outlet valves are respectively installed on both sides of the main inlet pipe near the condensate outlet pipe and on both sides of the main outlet pipe near the connecting pipe. The filter screen filters out particulate dust adsorbed during condensate formation, preventing it from mixing into the cold water and causing subsequent pipe blockage. The outlet valves of the main inlet and outlet pipes are located on the same upper or lower side. When the inlet valve is closed, water will not flow from one branch pipe, but will flow from another. This allows the branch pipe to be disassembled for cleaning of the filter screen inside, ensuring that cleaning does not affect normal use.

[0010] Preferably, the branch water pipe is fitted with a front ring and a rear ring along the water flow direction. A fixing block is fixedly installed inside the branch water pipe. The front ring and the rear ring are detachably fixed to the corresponding fixing block by bolts. A pre-filter and a post-filter are respectively installed inside the front ring and the rear ring, with the diameter of the pre-filter's mesh opening being larger than that of the post-filter's mesh opening. The front ring and the rear ring can be removed from the corresponding fixing block by bolts to clean the corresponding pre-filter and post-filter. The larger diameter of the pre-filter's mesh opening allows for staged filtration, resulting in a better filtration effect.

[0011] Preferably, the driving device includes a drive motor fixedly mounted on the top surface of the mixing tank, with a drive gear coaxially sleeved on the shaft of the drive motor, and a driven gear meshing with the drive gear sleeved on the vertical tube. The rotation of the drive motor shaft drives the rotation of the drive gear, which in turn drives the rotation of the driven gear, and consequently drives the rotation of the vertical tube.

[0012] Preferably, a temperature sensor is installed at the bottom inner side of the mixing tank, and the temperature sensor is connected to the controller. A valve connected to the controller is installed on the cold water inlet pipe. The temperature sensor can sense the water temperature inside the mixing tank and transmit it to the controller, so that the controller can control the amount of cold water entering according to the water temperature, thereby ensuring that the outflowing water meets the water temperature requirements.

[0013] The beneficial effects of this utility model are as follows: Under the premise of efficiently recovering heat energy from condensate, this application can achieve better mixing of condensate and cold water, thereby making the outflowing water temperature uniform and preventing sudden changes in temperature. At the same time, it will filter out particles in the condensate to prevent them from clogging the pipes later. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] As shown in the figure:

[0017] 1. Mixing tank; 2. Cold water inlet pipe; 3. Condensate outlet pipe; 4. Warm water outlet pipe; 5. Vertical pipe; 6. Horizontal pipe; 7. Main inlet pipe; 8. Main outlet pipe; 9. Branch pipes; 10. Inlet valve; 11. Outlet valve; 12. Front ring; 13. Rear ring; 14. Drive gear; 15. Driven gear; 16. Warm water sensor. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] A high-efficiency condensate heat recovery device, such as Figure 1 As shown. It includes a top-sealed mixing tank 1, which is connected to a cold water inlet pipe 2, a condensate outlet pipe 3, and a warm water outlet pipe 4. The cold water inlet pipe 2 is connected to a cold water source, and the inlet end of the condensate outlet pipe 3 is connected to a water pump, which is located inside the evaporator's water collection pan. A vertically arranged vertical pipe 5, with its lower end sealed, is installed inside the mixing tank 1. The vertical pipe 5 is vertically connected to several horizontal pipes 6 along its height direction. The outer ends of the horizontal pipes 6 are sealed, and several water nozzles are arranged along their length. The upper end of the vertical pipe 5 extends out of the mixing tank 1 and connects to the condensate outlet pipe 3. The vertical pipe 5 is driven by a drive device to rotate along its vertical axis. The drive device includes a drive motor fixedly mounted on the top surface of the mixing tank 1. A drive gear 14 is coaxially sleeved on the shaft of the drive motor, and a driven gear 15 meshing with the drive gear 14 is sleeved on the vertical pipe 5.

[0020] In use, cold water enters the mixing tank 1 through the cold water inlet pipe 2, while hot condensate enters the vertical pipe 5 through the condensate outlet pipe 3 via a water pump on the evaporator's water collection pan. From there, the condensate enters the horizontal pipe 6 and is sprayed out from the water nozzles. Since the horizontal pipe 6 is distributed along the height of the vertical pipe 5, and the water nozzles are positioned along its length, hot water is distributed throughout most of the mixing tank 1. The rotation of the drive motor shaft drives the rotation of the drive gear 14, which in turn drives the rotation of the driven gear 15, which in turn drives the rotation of the vertical pipe 5. The rotation of the vertical pipe 5 then drives the horizontal pipe 6 to rotate along it, further mixing the hot and cold water in the mixing tank 1, resulting in a uniform water temperature. The mixed water then flows out through the warm water outlet pipe 4 into the heating area.

[0021] It also includes a C-shaped inlet main pipe 7 and an outlet main pipe 8, which are arranged in a mirror image. The condensate outlet pipe 3 is vertically connected to the inlet main pipe 7. Both ends of the inlet main pipe 7 are connected to a branch water pipe 9 via flanges. The other ends of the branch water pipe 9 are connected to the outlet main pipe 8 via flanges. The outlet main pipe 8 is vertically connected to a connecting pipe. The other end of the connecting pipe is rotatably connected to the vertical pipe 5 via a sealed bearing. The vertical pipe 5 is rotatably connected to the top surface of the mixing tank 1 via a bearing. A filter screen is installed inside the branch water pipe 9. Inlet valves 10 and outlet valves 11 are respectively installed on both sides of the inlet main pipe 7 near the condensate outlet pipe 3 and on both sides of the outlet main pipe 8 near the connecting pipe. The filter screen can filter out particulate dust adsorbed during the formation of condensate, preventing it from mixing into the cold water and causing subsequent pipe blockage. The main inlet pipe 7 and the main outlet pipe 8 are located on the same upper or lower side. The outlet valve 11 and the inlet valve 10 are closed, which will cause the branch pipe 9 to not produce water, while the other branch pipe 9 will produce water. This allows the branch pipe 9 to be disassembled to clean the filter screen inside the branch pipe 9, ensuring that the filter screen is cleaned without affecting normal use.

[0022] The branch water pipe is fitted with a front ring 12 and a rear ring 13 along the water flow direction. A fixing block is fixedly installed inside the branch water pipe. The front ring 12 and rear ring 13 are detachably fixed to their respective fixing blocks by bolts. A pre-filter and a post-filter are respectively installed inside the front ring 12 and rear ring 13, with the pre-filter's mesh diameter being larger than that of the post-filter. The front ring 12 and rear ring 13 can be removed from their respective fixing blocks by bolts, allowing for cleaning of the pre-filter and post-filter. The larger mesh diameter of the pre-filter enables staged filtration, resulting in better filtration performance.

[0023] A temperature sensor 16 is installed at the bottom inner side of the mixing tank 1. The temperature sensor 16 is connected to the controller via a signal, and a valve connected to the controller via a signal is installed on the cold water inlet pipe 2. The temperature sensor 16 can sense the water temperature inside the mixing tank 1 and transmit it to the controller, so that the controller can control the amount of cold water entering according to the water temperature, thereby ensuring that the outflowing water meets the water temperature requirements.

[0024] The use of this application, while ensuring efficient heat recovery from condensate, enables better mixing of condensate and cold water, resulting in uniform water temperature and preventing sudden temperature fluctuations. It also filters out particles in the condensate to prevent subsequent pipe blockage.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-efficiency condensate heat recovery device, characterized in that: The device includes a top-sealed mixing tank, which is connected to a cold water inlet pipe, a condensate outlet pipe, and a warm water outlet pipe. The cold water inlet pipe is connected to a cold water source, and the inlet end of the condensate outlet pipe is connected to a water pump, which is located in the evaporator's water collection pan. A vertically installed vertical pipe with a closed bottom is installed inside the mixing tank. The vertical pipe is vertically connected to several horizontal pipes along its height direction. The outer ends of the horizontal pipes are closed, and several water nozzles are installed along their length direction. The upper end of the vertical pipe extends out of the mixing tank and is connected to the condensate outlet pipe. The vertical pipe is driven by a drive device to rotate along its vertical axis.

2. The condensate heat energy high-efficiency recovery device according to claim 1, characterized in that: The condensate outlet pipe is vertically connected to the main inlet pipe. Both ends of the main inlet pipe are bent and connected to a branch pipe via flanges. The other ends of the branch pipes are connected to the main outlet pipe via flanges. The main outlet pipe is vertically connected to a connecting pipe. The other end of the connecting pipe is bent and rotatably connected to the vertical pipe via a sealed bearing. The vertical pipe is rotatably connected to the top of the mixing tank via a bearing. A filter screen is installed inside the branch pipe. Inlet valves and outlet valves are respectively installed on both sides of the main inlet pipe near the condensate outlet pipe and on both sides of the main outlet pipe near the connecting pipe.

3. The condensate heat energy high-efficiency recovery device according to claim 2, characterized in that: The branch water pipe is fitted with a front ring and a rear ring along the water flow direction. A fixing block is fixedly installed inside the branch water pipe. The front ring and the rear ring are detachably fixed to the corresponding fixing block by bolts. A pre-filter and a post-filter are respectively installed inside the front ring and the rear ring. The diameter of the pre-filter is larger than the diameter of the post-filter.

4. The condensate heat energy high-efficiency recovery device according to claim 3, characterized in that: The driving device includes a drive motor fixedly mounted on the top surface of the mixing tank, with a drive gear coaxially sleeved on the shaft of the drive motor, and a driven gear meshing with the drive gear sleeved on the vertical tube.

5. The condensate heat energy high-efficiency recovery device according to claim 1, characterized in that: A temperature sensor is installed at the bottom inside the mixing tank, and the temperature sensor is connected to the controller signal. A valve connected to the controller signal is installed on the cold water inlet pipe.

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