Combined type air conditioner surface air cooler condensate water recycling system

Abstract

The utility model relates to the technical field of combined air conditioners, and discloses a combined air conditioner surface air cooler condensate water recycling system which comprises a collecting pipe used for collecting condensate water of a plurality of combined air conditioner surface air coolers, the collecting pipe is communicated with a collecting box, a partition plate is arranged in the middle of the collecting box and divides the collecting box into a settling cavity and a water purifying cavity, and the settling cavity is communicated with the water purifying cavity. A filter screen plate for communicating the precipitation cavity with the water purification cavity is arranged at the upper part of the partition plate; the collecting pipe is connected to the settling cavity of the collecting box in parallel, and a recycling pump used for being connected to a cooling tower is arranged in the water purifying cavity. The problems that in the prior art, low-temperature condensate water generated by a combined air conditioner surface air cooler is generally directly discharged into a trench and cannot be utilized, and consequently energy and water resources are wasted are solved.

Description

Technical Field

[0001] This utility model relates to the field of combined air conditioning technology, and in particular to a combined air conditioning surface cooler condensate recycling system. Background Technology

[0002] Modular air handling units are a widely used type of air handling equipment in industrial enterprises. They provide temperature and humidity levels in production and office areas that meet process quality requirements or ensure personnel comfort. The surface cooler is one of the most important components of a modular air handling unit. It uses the refrigeration provided by the refrigeration unit to cool and dehumidify the air that needs to be treated. During operation (especially during dehumidification), it converts gaseous moisture in the air into liquid water, which is what we call condensate.

[0003] The condensate from the surface cooler of a combined air conditioner has a low temperature (generally between 10°C and 20°C) and low water hardness, making it a good cold source in the hot summer. However, the condensate often contains some solid contaminants and cannot be used directly. Due to factors such as utilization efficiency and value, there is currently no clear use for it or it is not possible to achieve full utilization while taking into account economic efficiency.

[0004] Therefore, the low-temperature condensate produced by the surface cooler of the combined air conditioner is generally discharged directly into the ditch and cannot be utilized, resulting in a waste of energy and water resources. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a combined air conditioner surface cooler condensate recycling system to solve the problem that the low-temperature condensate generated by the combined air conditioner surface cooler in the prior art is generally directly discharged into the ditch and cannot be utilized, resulting in the waste of energy and water resources.

[0006] This utility model solves the above-mentioned technical problems through the following technical means: a combined air conditioner surface cooler condensate recycling system, including a collection pipe for collecting condensate from multiple combined air conditioner surface coolers, the collection pipe being connected to a collection box, the collection box having a partition in the middle dividing the collection box into a sedimentation chamber and a clean water chamber, the upper part of the partition having a filter screen plate connecting the sedimentation chamber and the clean water chamber; the collection pipe being connected in parallel to the sedimentation chamber of the collection box, and the clean water chamber having a recycling pump for connecting to a cooling tower.

[0007] Optionally, the collection pipe is equipped with a water-sludge separator. The top of the water-sludge separator has an inlet pipe extending into it, the bottom end of which is closed. An outlet is formed on the wall of the inlet pipe, and an outlet pipe is located on the upper side wall of the water-sludge separator. The water-sludge separator is connected to the collection pipe via the inlet and outlet pipes. This water-sludge separator ensures that the condensate entering the collection tank undergoes initial separation, with the condensate inlet pipe opening on its side wall and allowing it to flow out. This prevents the condensate from directly impacting the contaminants settled at the bottom of the separator, thus reducing its impact on the sedimentation and separation process.

[0008] Optionally, the bottom of the water separator, sedimentation chamber, and purified water chamber is equipped with a drain pipe, and the drain pipe is equipped with a drain valve. Solid pollutants will settle at the bottom of the water separator, sedimentation chamber, and purified water chamber under the action of gravity, and can be discharged through the drain pipe.

[0009] Optionally, a main inlet valve is provided on the pipeline after the collection pipes are connected in parallel.

[0010] Optionally, the water inlet pipe is equipped with a detachable connector, and the connector contains a filter screen to further remove contaminants and impurities from the condensate.

[0011] Optionally, the upper part of the partition has an overflow hole, and both sides of the overflow hole have sliding grooves extending to the outside of the top of the collection box. The filter screen is slidably inserted into the sliding grooves. The filter screen is designed to be slidably removed upwards for easy cleaning, either periodically or as needed.

[0012] Optionally, the reuse pump is a submersible pump, located in the upper-middle range of the clean water chamber. The submersible pump delivers clean, low-temperature condensate to the cooling tower, replenishing its water supply and reducing its load.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model collects the condensate generated by multiple combined air conditioner surface coolers through pipelines and transports it to a condensate collection tank. After overflow separation and filtration using a filter screen on the partition, the condensate flows into a clean chamber. The clean condensate is then pumped to a cooling tower by a submersible pump to be used as makeup water for the refrigeration unit cooling tower, thus realizing the collection, treatment and reuse of condensate from the combined air conditioner surface coolers.

[0015] 2. This utility model uses a water-sludge separator to perform preliminary sedimentation and filtration treatment on the condensate produced by the air conditioner's surface cooler, reducing the cleaning cycle of the collection box and filter screen. Simultaneously, the drain pipe at the bottom of the water-sludge separator, along with the valve on the collection pipe, can be used to clean the surface cooler. The system is simple, reliable in operation, and has high economic value. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the collection box of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the water-sewage separator of this utility model.

[0019] Among them, 1-Combined air conditioner, 2-Collection pipe, 21-Water-sewage separator, 211-Inlet pipe, 2111-Outlet, 2112-Connector, 212-Outlet pipe, 22-Sewage pipe, 23-Sewage valve, 24-Main inlet valve, 3-Collection box, 31-Baffle plate, 32-Filter screen, 33-Reuse pump, 4-Cooling tower. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0021] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0022] like Figures 1-3 As shown, this utility model discloses a combined air conditioner surface cooler condensate recycling system, including a collection pipe 2 for collecting condensate from multiple combined air conditioners 1. The collection pipe 2 is connected to a collection box 3. The collection box 3 has a partition 31 in the middle, which divides the collection box 3 into a sedimentation chamber and a clean water chamber. The upper part of the partition 31 is provided with a filter screen plate 32 that connects the sedimentation chamber and the clean water chamber. The collection pipe 2 is connected in parallel to the sedimentation chamber of the collection box 3. The clean water chamber is provided with a recycling pump 33 for connecting to a cooling tower 4.

[0023] In this embodiment, in order to reduce the blockage of the pipeline system such as the collection pipe 2 and reduce the cleaning cycle of the collection box 3, a water separator 21 is provided on the collection pipe 2. The top of the water separator 21 is provided with an inlet pipe 211 that extends into the water separator 21. The bottom port of the inlet pipe 211 is closed, and an outlet 2111 is opened on the pipe wall of the inlet pipe 211. An outlet pipe 212 is provided on the upper side wall of the water separator 21. The water separator 21 is connected to the collection pipe 2 through the inlet pipe 211 and the outlet pipe 212.

[0024] In this embodiment, to further enhance the separation effect of the water-sewage separator 21, a detachable connector 2112 can be provided on the inlet pipe 211. The connector 2112 is equipped with a filter screen. The connector 2112 connects the collection pipe 2 and the water-sewage separator 21. The connector 2112 can be disassembled for cleaning the filter screen when the machine is stopped for maintenance or when needed.

[0025] In this embodiment, the bottom of the water-sewage separator 21, the sedimentation chamber, and the purified water chamber are all equipped with a drain pipe 22, and a drain valve 23 is installed on the drain pipe 22. The water-sewage separator 21 can be made of transparent hard plastic or tempered glass, so that when the operator finds that there are a lot of deposited pollutants during the inspection, he can open the bottom drain port to discharge the pollutants.

[0026] In this embodiment, a main inlet valve 24 is provided on the pipeline after the collection pipes 2 are connected in parallel. The main inlet valve 24 and the water-sewage separators 21 on each of the parallel collection pipes 2 can also be equipped with independent control valves for easy independent control.

[0027] An overflow hole is provided on the upper part of the partition 31, and sliding grooves extending to the top of the collection tank 3 are provided on both sides of the overflow hole. The filter screen 32 is slidably inserted into the sliding grooves. The reuse pump 33 is a submersible pump and is located in the middle and upper range of the liquid surface in the purified water chamber. Although the condensate in the purified water chamber is usually relatively clean, it is still difficult to avoid the entry or growth of pollutants over time. Therefore, based on the sedimentation and separation function of the purified water chamber itself, the middle and upper range of its liquid surface can better ensure the cleanliness of the water.

[0028] It should be understood that, in order to avoid the dry running of the reuse pump 33, an existing level gauge can be installed in the water purification chamber to detect whether the liquid level in the water purification chamber is within the range set by the inlet of the reuse pump 33; the collection tank 3 is relatively large, and a manhole and existing storage steps are provided on its top for maintenance of the collection tank 3; a transparent observation window can be provided on the side of the collection tank for inspection personnel to check the liquid level operation and the cleanliness of the filter screen 32.

[0029] The working principle of this utility model is as follows:

[0030] When the combined air conditioning equipment is running normally, all drain valves are closed. The condensate from the surface cooler flows into the collection tank 3 through the collection pipe 2. During this process, the condensate undergoes initial sedimentation and separation through the water-sludge separator 21. The condensate is then collected in parallel and enters the sedimentation chamber of the collection tank 3. After secondary sedimentation, the condensate overflowing from the top of the sedimentation chamber flows through the filter screen 32. The clean condensate then enters the clean chamber of the collection tank 3 and is pumped to the cooling tower of the chiller by the reuse pump 33 for use as cooling tower makeup water.

[0031] During system operation, operators need to periodically discharge the pollutants settled at the bottom of the water-sewage separator 21; the drain valve 23 of the condensate collection tank 3 also needs to be opened periodically to remove the dirt at the bottom and clean the collection tank 3. In addition, the filter cotton in the filter screen 32 should be cleaned or replaced regularly to ensure smooth water flow and guarantee the quality of the recycled water.

[0032] In the power workshop of a cigarette factory in Fuling, there are 25 combined air conditioning units. From May to October, the surface coolers produce an average of about 2 tons of condensate per hour at a temperature of about 15℃, which is 10℃ lower than tap water. The cooling capacity per hour is about 23.3 kW. Based on a COP of 4.0 for the chiller, this can reduce electricity consumption by 5.8 kW per hour, resulting in an annual reduction of 18,400 kWh, equivalent to 17,000 yuan. At the same time, it can reduce soft water consumption by 6,300 tons, which is equivalent to nearly 9,000 tons of tap water, equivalent to about 40,000 yuan. In total, the annual cost reduction is about 57,000 yuan. The system is simple to modify, reliable in operation, and has high economic value.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A combined air conditioner surface cooler condensate recycling system, characterized in that, Includes a collection pipe (2) for collecting condensate from the surface coolers of multiple combined air conditioners (1), the collection pipe (2) being connected to a collection box (3), the collection box (3) having a partition (31) in the middle dividing the collection box (3) into a sedimentation chamber and a clean water chamber, the upper part of the partition (31) having a filter screen (32) connecting the sedimentation chamber and the clean water chamber; the collection pipe (2) being connected in parallel to the sedimentation chamber of the collection box (3), the clean water chamber having a reuse pump (33) for connecting to a cooling tower (4).

2. The combined air conditioning surface cooler condensate reuse system according to claim 1, characterized in that: The collection pipe (2) is equipped with a water separator (21). The top of the water separator (21) is equipped with an inlet pipe (211) that extends into the water separator (21). The bottom port of the inlet pipe (211) is closed. An outlet (2111) is opened on the pipe wall of the inlet pipe (211). An outlet pipe (212) is provided on the upper side wall of the water separator (21). The water separator (21) is connected to the collection pipe (2) through the inlet pipe (211) and the outlet pipe (212).

3. The combined air conditioning surface cooler condensate reuse system according to claim 2, characterized in that: The bottom of the water-sewage separator (21), sedimentation chamber and clean water chamber are all provided with a drain pipe (22), and a drain valve (23) is provided on the drain pipe (22).

4. The combined air conditioning surface cooler condensate reuse system according to claim 2, characterized in that: A main inlet valve (24) is installed on the pipeline after the collection pipe (2) is connected in parallel.

5. The combined air conditioning surface cooler condensate reuse system according to claim 2, characterized in that: The water inlet pipe (211) is provided with a detachable connector (2112), and the connector (2112) is provided with a filter screen.

6. The combined air conditioning surface cooler condensate reuse system according to claim 1, characterized in that: An overflow hole is provided on the upper part of the partition (31), and a sliding groove is provided on both sides of the overflow hole, extending to the outside of the top of the collection box (3). The filter screen (32) is slidably inserted into the sliding groove.

7. The combined air conditioning surface cooler condensate reuse system according to claim 1, characterized in that: The reuse pump (33) is a submersible pump and is located in the upper-middle range of the liquid level in the clean water chamber.

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