A cooling energy-saving water circuit

Abstract

The present invention discloses a cooling energy-saving water circuit, comprising a cooling water tower, a three-way valve, a compressor and a first chiller; the water outlet of the cooling water tower is connected to the three-way valve and then connected to the water inlet of the compressor, the water outlet of the compressor is connected to the water inlet of the cooling water tower, and a first loop is formed between the cooling water tower and the compressor; the other water outlet of the three-way valve is connected to the first water inlet of the first chiller, the first water outlet of the first chiller is connected to the water inlet of the compressor, and the cooling water tower, the first chiller and the compressor form a second loop; the second water inlet of the first chiller is connected to the water outlet of the cooling water tower, the second water outlet of the first chiller is connected to the water inlet of the cooling water tower, and the cooling water tower and the first chiller form a third loop. The present invention can solve the problems of complicated water circuits and energy waste in existing circulating water cooling equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of cooling equipment, and in particular relates to a cooling energy-saving water circuit. Background Art

[0002] In modern industrial production and manufacturing, in order to achieve the goal of energy saving, circulating water cooling equipment requires cooling water towers to continuously transport coolant for heat dissipation.

[0003] When the temperature is relatively cold, the cooling water tower can meet the heat dissipation requirements of the circulating water cooling equipment. However, when the temperature is relatively hot, the coolant output by the cooling water tower is insufficient to dissipate the heat of the circulating water cooling equipment, and another cooling device is needed to assist the cooling water tower in refrigeration, so as to supply the coolant after cooling again to the equipment for heat dissipation. If multiple different water circuits are set up, it is easy to cause the water circuit of the circulating water cooling equipment to be complicated. If only one water circuit is set up, the cooling device for auxiliary refrigeration is always in working state, resulting in energy waste. Summary of the invention

[0004] The present invention aims to provide a cooling energy-saving water circuit to solve the technical problems of complex water circuits and energy waste in circulating water cooling equipment in the prior art.

[0005] The technical solutions adopted to solve the above technical problems are:

[0006] The invention discloses a cooling energy-saving water circuit, comprising a cooling water tower, a three-way valve, a compressor and a first chiller;

[0007] The water outlet of the cooling water tower is connected to the three-way valve and then connected to the water inlet of the compressor. The water outlet of the compressor is connected to the water inlet of the cooling water tower, and a first loop is formed between the cooling water tower and the compressor.

[0008] The other water outlet of the three-way valve is connected to the first water inlet of the first chiller, the first water outlet of the first chiller is connected to the water inlet of the compressor, and the cooling water tower, the first chiller and the compressor form a second loop;

[0009] The second water inlet of the first chiller is connected to the water outlet of the cooling water tower, the second water outlet of the first chiller is connected to the water inlet of the cooling water tower, and the cooling water tower and the first chiller form a third loop.

[0010] The present invention has at least the following beneficial effect: if the weather temperature is relatively cold, the water outlet of the three-way valve is connected to the water inlet of the compressor, and the coolant is circulated and cooled along the first circuit to directly provide uninterrupted coolant to the compressor.

[0011] If the weather is hot, the coolant output from the water outlet of the cooling water tower is diverted to the second water inlet and the three-way valve of the first chiller to enable the first chiller to produce a refrigeration effect. The water outlet of the three-way valve is connected to the first water inlet of the first chiller. After passing through the three-way valve, the coolant flows to the first water inlet of the first chiller, allowing the first chiller to cool the coolant and flow to the compressor through the first water outlet of the first chiller to ensure that the temperature of the coolant can meet the heat dissipation of the compressor. At this time, the coolant is circulated and cooled along the second circuit and the third circuit.

[0012] The flow direction of the coolant output from the outlet of the cooling water tower is controlled by a three-way valve, so that the coolant circulates in different loops of the same water circuit, making the cooling energy-saving water circuit structure simpler. Different circulating water circuits can be used according to different temperature environments, saving the cooling energy of the first chiller.

[0013] As a further improvement of the above technical solution, the cooling energy-saving water circuit also includes a second chiller, a water tank and a spray device;

[0014] The first water inlet of the second chiller is connected to the water outlet of the cooling water tower, the first water outlet of the second chiller is connected to the water inlet of the cooling water tower, and a fourth loop is formed between the second chiller and the cooling water tower;

[0015] The second water outlet of the second chiller is connected to the water inlet of the spray device and then to the water inlet of the water tank. The water outlet of the water tank is connected to the second water inlet of the second chiller, forming a fifth loop between the second chiller and the water tank.

[0016] Through the above arrangement, the coolant output from the water outlet of the cooling water tower circulates along the fourth loop, so that the second chiller produces a refrigeration effect, thereby cooling the spray liquid flowing to the second chiller in the fifth loop. The spray liquid circulates and cools along the fifth loop, so that the water tank can store the spray liquid cooled by the second chiller and sprayed by the spray device in advance. The spray liquid can enter from the water inlet of the spray device, so that the cooling energy-saving water circuit has a spraying function.

[0017] As a further improvement of the above technical solution, the first circuit connected to the cooling water tower is provided with a first valve at both ends, the third circuit connected to the first chiller is provided with a second valve at both ends, and the fourth circuit connected to the second chiller is provided with a third valve at both ends.

[0018] Through the above settings, the first valve is used to control whether the water outlet of the cooling water tower is connected to the three-way valve to control whether the cooling water tower dissipates heat for the compressor. The second valve is used to control whether the water outlet of the cooling water tower is connected to the first chiller to control whether the first chiller produces a refrigeration effect, thereby cooperating with the three-way valve to control whether the coolant circulates along the first circuit or along the second circuit and the third circuit. The third valve is used to control whether the water outlet of the cooling water tower is connected to the second chiller to control whether the second chiller produces a refrigeration effect, thereby controlling whether the cooling energy-saving water circuit starts the spray function.

[0019] As a further improvement of the above technical solution, the spray device includes a water spray main pipe, a flow meter, a pressure sensor and a plurality of water spray pipes. The water inlet end of the water spray main pipe is connected between the second water outlet end of the second chiller and the water inlet end of the water tank. All the water spray pipes are connected in parallel and then connected in series to the water outlet end of the water spray main pipe. The flow meter and the pressure sensor are both arranged on the water spray main pipe.

[0020] Through the above arrangement, the spray liquid is input into the water spray main pipe from between the second water outlet end of the second chiller and the water inlet end of the water tank, and is diverted to each spray pipe after passing through the flow meter and the pressure sensor, so that the spray liquid is sprayed at the set flow rate, set pressure and set temperature of the second chiller.

[0021] As a further improvement of the above technical solution, a spray pool is provided below all the spray pipes, the spray pool is connected to a return water pump and then to the water tank, and a sixth circuit is formed between the spray device, the water tank and the second chiller.

[0022] Through the above arrangement, the spray pool collects the spray liquid and recycles it into the water tank through the return pump, so that the spray liquid circulates along the sixth loop during the spraying process.

[0023] As a further improvement of the above technical solution, a fourth valve is provided at one end of the fifth circuit connected to the water inlet end of the water tank, and the spray device includes a fifth valve, which is provided at the water inlet end of the water spray main pipe.

[0024] Through the above arrangement, the flow direction of the spray liquid can be controlled by switching the fourth valve and the fifth valve. When the fourth valve is opened, the spray liquid is cooled and circulated along the fifth loop, and the spray liquid is cooled in advance. When the fifth valve is opened, the spray main pipe inputs the spray liquid between the second water outlet of the second chiller and the water inlet of the water tank, and the spray liquid is sprayed and circulated along the sixth loop.

[0025] As a further improvement of the above technical solution, the water tank is connected with a water supply port and a water discharge port.

[0026] Through the above arrangement, the water tank can replenish the spray liquid lost by evaporation in the fifth circuit or the sixth circuit through the water replenishment port. The water tank can discharge the dirty spray liquid with debris after multiple cycles through the drain port.

[0027] As a further improvement of the above technical solution, the spray device is connected to a drying device, which includes an air source, a pilot one-way valve and a sixth valve. The air outlet end of the air source is connected to the pilot one-way valve and the sixth valve in sequence and then connected to the water spray main pipe.

[0028] Through the above arrangement, when the drying device is started, the air source is started and the sixth valve is in an open state, and the air or gas output by the air source is input into the water spray main pipe through the pilot one-way valve and the sixth valve, and is sprayed along the water spray pipe to discharge the residual spray liquid in the water spray main pipe and the water spray pipe, thereby ensuring that the water spray main pipe and the water spray pipe are dry and avoiding the residual spray liquid from shortening the service life of the water spray main pipe and the water spray pipe.

[0029] As a further improvement of the above technical solution, the cooling energy-saving water circuit includes a temperature control mechanism, and the temperature control mechanism is electrically connected to the three-way valve, the first chiller, the two first valves and the two second valves respectively.

[0030] Through the above settings, the cooling and energy-saving water circuit is more intelligent and simple when dissipating heat for the compressor. When the temperature detected by the temperature control mechanism can meet the heat dissipation requirements of the compressor, the temperature control mechanism controls the two first valves to open, and makes the first chiller and the two second valves in a closed state. At this time, the three-way valve is connected, and the coolant circulates along the first circuit. When the temperature detected by the temperature control mechanism cannot meet the heat dissipation requirements of the compressor, the temperature control mechanism controls the two first valves, the first chiller and the two second valves to open. At this time, the three-way valve is connected to the first chiller, and the coolant circulates along the second circuit and the third circuit.

[0031] As a further improvement of the above technical solution, the temperature control mechanism is electrically connected to the second chiller, the two third valves, the fourth valve, the spray device and the drying device respectively.

[0032] Through the above settings, the cooling and energy-saving water circuit is more intelligent and simple when starting spraying and drying. Before spraying, the temperature control mechanism can open the two third valves and the fourth valve to make the second chiller produce a cooling effect, and the spray liquid is circulated and cooled in advance in the fifth circuit. During spraying, the temperature control mechanism can open the fifth valve of the spray device and close the fourth valve, so that the spray liquid is sprayed and circulated in the sixth circuit. After spraying, the temperature control mechanism can open the sixth valve of the drying device to discharge the spray liquid remaining in the main water spray pipe and all water spray pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0034] Figure 1 It is a schematic diagram of the overall structure of the cooling energy-saving water circuit provided by an embodiment of the present invention;

[0035] Figure 2 is a schematic diagram of the structure of a first circuit provided by an embodiment of the present invention;

[0036] Figure 3 is a schematic diagram of the structure of the second loop and the third loop provided in an embodiment of the present invention;

[0037] Figure 4 is a schematic diagram of the structure of the fourth loop and the fifth loop provided in an embodiment of the present invention;

[0038] Figure 5 is a schematic diagram of the structure of the fourth loop and the sixth loop provided in an embodiment of the present invention;

[0039] Figure 6 It is a schematic diagram of the structures of the spraying device and the drying device provided in the embodiment of the present invention.

[0040] The following are marked in the accompanying drawings:

[0041] 100. Cooling tower;

[0042] 200, three-way valve;

[0043] 300. Compressor;

[0044] 400, first chiller;

[0045] 500, second chiller;

[0046] 600, water tank; 610, fourth valve; 620, water supply port; 630, drainage port;

[0047] 700, spray device; 710, water spray main pipe; 720, flow meter; 730, pressure sensor; 740, water spray pipe; 750, spray pool; 760, return water pump; 770, fifth valve;

[0048] 800, drying device; 810, air source; 820, pilot-operated one-way valve; 830, sixth valve;

[0049] 910, first valve; 920, second valve; 930, third valve; 940, filter. DETAILED DESCRIPTION

[0050] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0051] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In the description of the present invention, if there are words such as "several", it means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there are descriptions of first, second, and third, they are only used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0053] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0054] Reference Figures 1 to 6 , several embodiments of the cooling energy-saving water circuit of the present invention are given below.

[0055] like Figures 1 to 6 As shown, the energy-saving cooling water circuit of the embodiment of the present invention includes a cooling water tower 100 , a three-way valve 200 , a compressor 300 and a first chiller 400 .

[0056] It can be understood that the water inlet of the three-way valve 200 is connected to the water outlet of the cooling water tower 100, one of the water outlets of the three-way valve 200 is connected to the water inlet of the compressor 300, and the water inlet of the cooling water tower 100 is connected to the water outlet of the compressor 300, so that a first loop is formed between the cooling water tower 100 and the compressor 300. Figure 1 and Figure 2 shown.

[0057] In this configuration, when the coolant output by the cooling water tower 100 can meet the heat dissipation demand of the compressor 300, the three-way valve 200 is in the first working state, and at this time, the coolant circulates along the first loop. Specifically, the coolant output by the cooling water tower 100 flows directly to the water inlet of the compressor 300 through the three-way valve 200 to quickly dissipate the heat of the compressor 300, and the coolant after heat exchange flows out from the water outlet of the compressor 300 and flows back into the cooling water tower 100 for cooling again, so as to continuously provide uninterrupted coolant to the compressor 300.

[0058] It can be understood that the other water outlet end of the three-way valve 200 is connected to the first water inlet end of the first chiller 400, and the water inlet end of the compressor 300 is connected to the first water outlet end of the first chiller 400, so that the first chiller 400, the cooling tower 100 and the compressor 300 form a second loop, such as Figure 1 and Figure 3 shown.

[0059] With such a configuration, when the coolant outputted from the cooling water tower 100 cannot meet the heat dissipation demand of the compressor 300 due to the weather and the ambient temperature rising during the transportation process, the three-way valve 200 is in the second working state, at which time the coolant circulates along the second loop. Specifically, the coolant outputted from the cooling water tower 100 flows along the other water outlet end of the three-way valve 200 to the first water inlet end of the first chiller 400, and flows to the compressor 300 after being cooled again by the first chiller 400, thereby ensuring that the temperature of the coolant can meet the heat dissipation demand of the compressor 300, and the coolant after heat exchange flows back from the water outlet end of the compressor 300 to the cooling water tower 100 for cooling again, so as to continuously provide uninterrupted coolant to the compressor 300.

[0060] In this embodiment, the communication path between the water outlet end of the cooling water tower 100 and the water inlet end of the three-way valve 200 is the same path in the first circuit and the second circuit, and the communication path between the water outlet end of the compressor 300 and the water inlet end of the cooling water tower 100 is the same path in the first circuit and the second circuit, so that the first circuit and the second circuit partially overlap, reducing repeated communication paths, and making the route of the cooling and energy-saving water circuit simpler.

[0061] In this embodiment, the connecting path between the first water outlet of the first chiller 400 and the water inlet of the compressor 300 can be arranged on the connecting path between the water outlet of the three-way valve 200 and the water inlet of the compressor 300, so that the cooling liquid paths of the first circuit and the second circuit to the compressor 300 overlap, making the route of the cooling energy-saving water circuit simpler.

[0062] It can be understood that the first chiller 400 also includes a second water inlet and a second water outlet, the water outlet of the cooling tower 100 is connected to the second water inlet of the first chiller 400, and the water inlet of the cooling tower 100 is connected to the second water outlet of the first chiller 400, so that the cooling tower 100 and the first chiller 400 form a third loop, such as Figure 1 and Figure 3 shown.

[0063] With such arrangement, when the cooling tower 100 needs the first chiller 400 for auxiliary cooling, the coolant also circulates along the third loop, that is, the coolant output from the water outlet of the cooling tower 100 enters the second water inlet of the first chiller 400.

[0064] The coolant after heat exchange is output from the second water outlet of the first chiller 400 and flows back to the cooling tower 100 for cooling again, so that the first chiller 400 produces a refrigeration effect, so as to cool the coolant entering the first chiller 400 in the second circuit, and ensure that the coolant can meet the heat dissipation effect of the compressor 300.

[0065] It is understandable that when the three-way valve 200 is in the second working state, the water outlet of the cooling water tower 100 needs to be connected to the second circuit and the third circuit to deliver coolant to the compressor 300 and the first chiller 400 respectively. The water inlet of the cooling water tower 100 needs to be connected to the second circuit and the third circuit to receive the coolant after the compressor 300 and the first chiller 400 perform heat exchange. If a separate communication path is set, the water inlet and the water outlet of the cooling water tower 100 need to be provided with a connecting valve to connect the second circuit and the third circuit respectively, making the cooling energy-saving water route complicated.

[0066] In this regard, one end of the second water inlet of the first chiller 400 connected to the water outlet of the cooling water tower 100 can be arranged on the connecting path between the water inlet of the three-way valve 200 and the water outlet of the cooling water tower 100, so that the second circuit and the third circuit overlap at one end close to the water outlet of the cooling water tower 100, and the coolant is diverted and output to the three-way valve 200 and the first chiller 400.

[0067] The end of the second water outlet of the first chiller 400 connected to the water inlet of the cooling water tower 100 can be arranged on the communication path between the water outlet of the compressor 300 and the water inlet of the cooling water tower 100, so that the second circuit and the third circuit are overlapped at one end close to the water inlet of the cooling water tower 100, and the coolant after heat exchange between the compressor 300 and the first chiller 400 merges and flows into the cooling water tower 100 together, making the cooling and energy-saving water circuit simpler, such as Figure 1 shown.

[0068] It is understandable that industrial production usually uses multiple large-scale equipment, and some large-scale equipment is generally equipped with more than two compressors 300. Therefore, one or more compressors 300 can be provided in the cooling energy-saving water circuit. The number of three-way valves 200 and the first chiller 400 corresponds to the number of compressors 300 one by one, and the first circuit, the second circuit and the third circuit are all set according to the number of compressors 300.

[0069] In this embodiment, two compressors 300 are provided, and two three-way valves 200 and two first chillers 400 are provided and are respectively connected to the compressors 300. Figures 1 to 3 shown.

[0070] It can be understood that in the first circuit, the coolant output from the cooling water tower 100 is divided into two three-way valves 200, and the two three-way valves 200 are respectively connected to the two compressors 300. The coolant flows out from the water outlets of the two compressors 300 and merges, and then flows back to the cooling water tower 100.

[0071] It can be understood that in the second circuit, the other water outlet ends of the two three-way valves 200 are respectively connected to the first water inlet ends of the two first chillers 400, and the first water outlet ends of the two first chillers 400 are respectively connected to the water inlet ends of the two compressors 300.

[0072] It can be understood that in the third loop, the coolant output from the cooling tower 100 is branched and flows to the second water inlet ends of the two first chillers 400, and the coolant flows out from the second water outlet ends of the two first chillers 400 and merges, and then flows back to the cooling tower 100.

[0073] In this embodiment, the cooling and energy-saving water circuit further includes a second chiller 500 , a water tank 600 and a spray device 700 .

[0074] It can be understood that the first water inlet of the second chiller 500 is connected to the water outlet of the cooling water tower 100, and the first water outlet of the second chiller 500 is connected to the water inlet of the cooling water tower 100, and a fourth loop of circulation is formed between the second chiller 500 and the cooling water tower 100, and the coolant can circulate along the fourth loop to enable the second chiller 500 to produce a cooling effect, such as Figure 1 , Figure 4 and Figure 5 shown.

[0075] In this embodiment, the cooling water tower 100 is provided with a first valve 910 at the water inlet and the water outlet of the first circuit. Figures 1 to 3 shown.

[0076] With such arrangement, when the two first valves 910 are in the open state, the water inlet and outlet of the cooling water tower 100 are respectively connected to the water outlet of the compressor 300 and the water inlet of the three-way valve 200. At this time, the coolant can circulate in the first circuit or the second circuit to cool and dissipate heat of the compressor 300.

[0077] It can be understood that since the second water inlet end of the first chiller 400 is connected between the water outlet end of the cooling water tower 100 and the water inlet end of the three-way valve 200, the second water outlet end of the first chiller 400 is connected to the connecting path between the water outlet end of the compressor 300 and the water inlet end of the cooling water tower 100. Therefore, when the two first valves 910 are in the open state and the three-way valve 200 is in the first working state, the first chiller 400 is in the closed state. However, the coolant flowing out from the water outlet end of the cooling water tower 100 is diverted to the first chiller 400, resulting in a reduction in the coolant flowing to the three-way valve 200 and the compressor 300, which makes the heat dissipation effect of the cooling energy-saving water circuit on the compressor 300 worse.

[0078] In this regard, the first chiller 400 is provided with a second valve 920 at the second water inlet and the second water outlet of the third circuit, respectively. Figure 1 and Figure 3 shown.

[0079] In this configuration, when the two first valves 910 are in an open state and the three-way valve 200 is in a first working state, the two second valves 920 are in a closed state to prevent the coolant from entering the first cooling unit.

[0080] When the two first valves 910 are in the open state and the three-way valve 200 is in the second working state, the two second valves 920 are in the open state. At this time, the coolant flowing out from the water outlet of the cooling water tower 100 is diverted to the first chiller 400 and the three-way valve 200, so that the first chiller 400 produces a cooling effect.

[0081] It is understandable that the second chiller 500 is provided with a third valve 930 at the first water inlet and the first water outlet of the fourth circuit, respectively. Figure 1 , Figure 4 and Figure 5 shown.

[0082] With such arrangement, when the cooling energy-saving water circuit needs to be sprayed, the two third valves 930 are in an open state, so that the coolant output from the outlet end of the cooling water tower 100 can flow to the second chiller 500, so that the second chiller 500 can obtain a cooling effect.

[0083] It can be understood that the two first valves 910 and the two third valves 930 can be opened at the same time so that the cooling and energy-saving water circuit can simultaneously perform heat dissipation operations on the compressor 300 and spray operations on the product; the two first valves 910 or the two third valves 930 can also be opened separately to perform heat dissipation operations or spray operations separately.

[0084] It is understandable that the first valve 910, the second valve 920 and the third valve 930 can be manual valves or electric valves. In this embodiment, the first valve 910, the second valve 920 and the third valve 930 are all electric valves, so that the first valve 910, the second valve 920 and the third valve 930 can be opened and closed by electric means, making the use of the cooling energy-saving water circuit easier.

[0085] It can be understood that the second water outlet of the second chiller 500 is first connected to the water inlet of the spray device 700, and then connected to the water inlet of the water tank 600. The water outlet of the water tank 600 is connected to the second water inlet of the second chiller 500, and a fifth loop is formed between the water tank 600 and the second chiller 500. Figure 1 and Figure 4 shown.

[0086] With such arrangement, when the spray device 700 is in the closed state, the spray liquid required by the spray device 700 is produced into the spray liquid of the set temperature through the second chiller 500 and stored in the water tank 600. The spray liquid circulates in the fifth loop so that the spray liquid stored in the water tank 600 always maintains the set temperature.

[0087] It is understandable that the water tank 600 stores spray liquid to prevent the second chiller 500 from failing to cool the spray liquid in time during the spraying process of the spray device 700, resulting in subsequent spray liquid temperature instability, temperature rise, etc., which cannot meet the spraying requirements of the product.

[0088] It can be understood that the water inlet end of the spray device 700 is connected to the connecting path between the water inlet end of the water tank 600 and the second water outlet end of the second chiller 500. When the spray device 700 is started, the spray liquid of the set temperature enters the spray device 700 to meet the spraying requirements of the product.

[0089] In this embodiment, the spray device 700 includes a water spray main pipe 710, a flow meter 720, a pressure sensor 730 and a plurality of water spray pipes 740. Figure 1 , Figure 5 and Figure 6 shown.

[0090] It can be understood that the water inlet end of the water spray main pipe 710 is connected to the connecting path between the water inlet end of the water tank 600 and the second water outlet end of the second chiller 500, so that the spray liquid after cooling by the second chiller 500 enters the water spray main pipe 710, ensuring that the spray liquid is at the set temperature.

[0091] It can be understood that all the water spray pipes 740 are evenly arranged and connected in parallel, and the water outlet end of the water spray main pipe 710 is connected in series to all the parallel water spray pipes 740, so that the spray liquid can flow evenly from the water spray main pipe 710 to each water spray pipe 740, so that the product is evenly sprayed.

[0092] It is understandable that the flow meter 720 and the pressure sensor 730 are both arranged on the water spray main pipe 710. By adjusting the flow meter 720, the pressure sensor 730 and the second chiller 500, the spray liquid can be sprayed on the product surface at a set flow rate, set pressure and set temperature to meet the spraying requirements of the product.

[0093] In this embodiment, a spray pool 750 is provided below all the spray pipes 740, and the spray pool 750 is connected to the return water pump 760 and then connected to the water tank 600, so that a sixth loop is formed between the spray device 700, the water tank 600 and the second chiller 500. Figure 1 and Figure 5 shown.

[0094] It is understandable that when the spray device 700 is in the on state, the spray liquid circulates along the sixth loop. Specifically, the spray liquid is output after being cooled by the second chiller 500, and flows along the spray main pipe 710 to all the spray pipes 740 to spray the product.

[0095] The spray liquid falls downward under the action of gravity and is received by the spray pool 750 below. The spray liquid is recovered into the water tank 600 through the return pump 760, and flows back to the second chiller 500 through the connecting path between the water tank 600 and the second chiller 500 to cool the spray liquid again, so as to continuously provide uninterrupted spray liquid to the spray device 700.

[0096] It can be understood that the spray pool 750 is located below all the spray pipes 740, and the product can be transported into the spray pool 750 for spraying operation. The spray pool 750 is used to collect the spray liquid, and the spray liquid accumulates at the bottom of the spray pool 750 due to gravity.

[0097] It is understandable that the opposite ends of the return pump 760 are respectively connected to the bottom of the water tank 600 and the spray pool 750. When the return pump 760 is started, the spray liquid at the bottom of the spray pool 750 is pumped into the water tank 600.

[0098] Furthermore, a fourth valve 610 is provided at one end of the fifth circuit close to the water inlet end of the water tank 600, and the spray device 700 includes a fifth valve 770, which is provided at the water inlet end of the water spray main pipe 710. Figure 1 shown.

[0099] With this arrangement, when the product needs to be sprayed, the spray device 700 is in the open state, at this time, the fourth valve 610 is in the closed state, the fifth valve 770 is in the open state, the spray liquid circulates in the sixth loop, and the spray liquid output from the second chiller 500 only flows to the water spray main pipe 710, such as Figure 5 shown.

[0100] When the product does not need to be sprayed temporarily, the spray device 700 is in a closed state. At this time, the fourth valve 610 is in an open state, the fifth valve 770 is in a closed state, and the spray liquid circulates in the fifth loop. The spray liquid output from the second chiller 500 only flows to the water tank 600. Figure 4 shown.

[0101] It is understandable that, since the spray liquid will evaporate and be consumed during the circulation process or the spraying process, the spray liquid in the fifth loop and the sixth loop will continue to decrease.

[0102] In this regard, the water tank 600 is connected to a water supply port 620, such as Figure 1 , Figure 4 and Figure 5 As shown, the water tank 600 is replenished with spray liquid to ensure that the fifth circuit and the sixth circuit have sufficient spray liquid for circulation.

[0103] Furthermore, a first liquid level sensor is provided in the water tank 600, and the first liquid level sensor is provided with a first liquid level. When the spray liquid level in the water tank 600 is lower than the first liquid level, the first liquid level sensor prompts people to open the water replenishing port 620 to replenish the spray liquid into the water tank 600.

[0104] It is understandable that a second liquid level sensor is also provided in the water tank 600, and the second liquid level sensor is provided with a second liquid level. When the spray liquid level in the water tank 600 is higher than the second liquid level, the second liquid level sensor prompts people to close the water replenishment port 620. At this time, the water tank 600 has been replenished with sufficient spray liquid to avoid the situation where people cannot see the liquid level in the water tank 600 clearly, resulting in excessive replenishment of spray liquid and the water tank 600 bursting.

[0105] It is understandable that after multiple cycles and spraying, the spray liquid is easily contaminated with dust, debris and other debris on the surface of the product, causing the spray liquid to be dirty.

[0106] In this regard, the water tank 600 is connected to a drain outlet 630, such as Figure 1 , Figure 4 and Figure 5 As shown, it is convenient to replace the spraying liquid in the water tank 600 to prevent the spraying device 700 from continuing to use dirty spraying liquid to spray the product. When the product does not need to be sprayed for a long time, the spraying liquid in the fifth and sixth circuits can be discharged through the drain port 630 of the water tank 600 to prevent the spraying liquid from accumulating in the fifth and sixth circuits for a long time, causing the second chiller 500, the water tank 600 or the spraying device 700 to rust and be damaged.

[0107] In this embodiment, the cooling energy-saving water circuit further includes a drying device 800 , and the drying device 800 is connected to the spraying device 700 .

[0108] It can be understood that the drying device 800 includes an air source 810, a pilot-operated one-way valve 820 and a sixth valve 830. The air outlet of the air source 810 is connected to the pilot-operated one-way valve 820. The pilot-operated one-way valve 820 is connected to the sixth valve 830 and then connected to the water spray main pipe 710. Figure 1 and Figure 6 shown.

[0109] With such arrangement, when the drying device 800 is started, the sixth valve 830 is in an open state, and the air source 810 outputs air or gas from the air outlet. When the air pressure reaches the air pressure set by the pilot one-way valve 820, the pilot one-way valve 820 is in a conducting state. The air or gas passes through the sixth valve 830 and is connected with the water spray main pipe 710, so that the air or gas moves along the water spray main pipe 710 toward the water spray pipe 740 to spray out the spray liquid remaining in the water spray main pipe 710 and the water spray pipe 740, thereby avoiding the situation where the fifth valve 770 is in a closed state after the spraying is completed, and the spray liquid accumulates between the water spray main pipe 710 and the water spray pipe 740, affecting the service life of the water spray main pipe 710 and the water spray pipe 740.

[0110] It is understandable that the three-way valve 200 can be a manual three-way valve 200 or an electric three-way valve 200. In this embodiment, the three-way valve 200 is an electric three-way valve 200, so that the three-way valve 200 can more easily switch between the first working state and the second working state.

[0111] It is understandable that the first valve 910, the second valve 920, the third valve 930, the fourth valve 610, the fifth valve 770 and the sixth valve 830 may be manual valves or electric valves. In this embodiment, the first valve 910, the second valve 920, the third valve 930, the fourth valve 610, the fifth valve 770 and the sixth valve 830 are all electric valves, so that the first valve 910, the second valve 920, the third valve 930, the fourth valve 610, the fifth valve 770 and the sixth valve 830 can more easily switch the valve switch state by powering on and off.

[0112] In this embodiment, the cooling and energy-saving water circuit includes a temperature control mechanism.

[0113] It is understandable that the temperature control mechanism is electrically connected to the two first valves 910. When the compressor 300 needs to dissipate heat, the temperature control mechanism controls the two first valves 910 to open; when the compressor 300 does not need to dissipate heat, the temperature control mechanism controls the two first valves 910 to close, so as to control whether the coolant output from the cooling tower 100 flows to the three-way valve 200.

[0114] It can be understood that the temperature control mechanism is electrically connected to the three-way valve 200 and the first chiller 400. When the two first valves 910 are in an open state, the temperature control mechanism can detect the temperature and set the start-up temperature of the first chiller 400. When the temperature detected by the temperature control mechanism is lower than the set start-up temperature, the temperature control mechanism can put the three-way valve 200 in the first working state, that is, the water outlet of the three-way valve 200 is connected to the water inlet of the compressor 300, and at this time, the coolant circulates along the first circuit.

[0115] It can be understood that the temperature control mechanism is electrically connected to the two second valves 920. When the detected temperature of the temperature control mechanism is higher than the set start-up temperature, the temperature control mechanism controls the two second valves 920 to open and puts the three-way valve 200 in the second working state, that is, the water outlet of the three-way valve 200 is connected to the first water inlet of the first chiller 400, and at this time, the coolant circulates along the second loop and the third loop.

[0116] It can be understood that the temperature control mechanism includes an electrically connected temperature sensor and a central control system.

[0117] In some embodiments, a temperature sensor may be installed at the site to detect the ambient temperature and send it to the central control system. The central control system may detect whether the ambient temperature exceeds the set start-up temperature.

[0118] In other embodiments, a temperature sensor may be provided between the water outlet of the cooling water tower 100 of the first circuit and the water inlet of the three-way valve 200 to detect the temperature of the coolant before the coolant reaches the three-way valve 200, so that the central control system can place the three-way valve 200 in the first working state or the second working state in advance.

[0119] In this embodiment, the temperature sensor can also be arranged at the water inlet end of the three-way valve 200 or the water inlet end of the compressor 300, so as to accurately detect whether the temperature of the coolant is higher or lower than the set starting temperature, so as to avoid the temperature of the coolant being increased by the ambient temperature during transportation, thereby affecting the heat dissipation effect of the coolant on the compressor 300.

[0120] It is understandable that the startup temperature of the first chiller 400 may be the cooling temperature of the coolant required by the compressor 300 to ensure the cooling effect of the energy-saving cooling water circuit on the compressor 300 .

[0121] In this embodiment, the central control system is also electrically connected to the second chiller 500 , the two third valves 930 , the fourth valve 610 and the spray device 700 , respectively.

[0122] It is understandable that the central control system can set and adjust the set temperature of the second chiller 500 for cooling.

[0123] It is understandable that the central control system is electrically connected to the spray device 700. Specifically, the central control system is electrically connected to the fifth valve 770, the flow meter 720 and the pressure sensor 730, and the central control system can open and close the fifth valve 770, and the set flow of the flow meter 720 and the set pressure of the pressure sensor 730 can be set through the central control system.

[0124] With this arrangement, the spraying function of the cooling energy-saving water circuit can be started and closed by the central control system. Before the product needs to be sprayed, the central control system opens the two third valves 930 and the fourth valve 610 in advance, allowing the spray liquid to circulate along the fifth circuit, and the water tank 600 stores the spray liquid at the set temperature in advance.

[0125] When the product needs to be sprayed, the central control system closes the fourth valve 610 and opens the fifth valve 770. At this time, the spray liquid circulates along the sixth loop, making the switching of the spray device 700 easier.

[0126] Furthermore, the central control system is electrically connected to the drying device 800 so as to open the drying device 800 through the central control system. Specifically, the central control system is electrically connected to the gas source 810, the pilot one-way valve 820 and the sixth valve 830 respectively to control the switch of the gas source 810, the set air pressure of the pilot one-way valve 820 and the switch of the sixth valve 830.

[0127] It is understandable that when the spray device 700 changes from the start state to the shut-down state, the central control system starts the drying device 800 to quickly ventilate the water spray main pipe 710 and the water spray pipe 740 to quickly discharge the spray liquid.

[0128] It is understandable that the central control system is electrically connected to the water tank 600. Specifically, the central control system is electrically connected to the first liquid level sensor, the second liquid level sensor, the switch of the water filling port 620, and the switch of the water discharge port 630, respectively, so as to set the first liquid level, set the second liquid level, control the water filling of the water tank 600, and control the water discharge of the water tank 600 through the central control system, making the use of the cooling energy-saving water circuit more convenient.

[0129] It is understandable that the cooling energy-saving water circuit further includes a filter 940, and a plurality of filters 940 are provided, and are respectively arranged at the first water inlet end of the first chiller 400, the water inlet end of the three-way valve 200, and the water inlet end of the second chiller 500 to filter impurities in the coolant. In this embodiment, the filter 940 is a Y-shaped filter 940.

[0130] It can be understood that the central control system, the three-way valve 200, the first chiller 400, the second chiller 500, the first valve 910, the second valve 920, the third valve 930, the fourth valve 610, the fifth valve 770 and the sixth valve 830 are all prior arts, and the present invention does not improve the structure of the central control system, the three-way valve 200, the first chiller 400, the second chiller 500, the first valve 910, the second valve 920, the third valve 930, the fourth valve 610, the fifth valve 770 and the sixth valve 830. Therefore, those skilled in the art should understand the specific structure and working principle of the central control system, the three-way valve 200, the first chiller 400, the second chiller 500, the first valve 910, the second valve 920, the third valve 930, the fourth valve 610, the fifth valve 770 and the sixth valve 830, and no specific explanation is given here.

[0131] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A cooling energy-saving water circuit, characterized in that: It includes a cooling water tower, a three-way valve, a compressor and a first chiller; The water outlet of the cooling water tower is connected to the three-way valve and then connected to the water inlet of the compressor. The water outlet of the compressor is connected to the water inlet of the cooling water tower, and a first loop is formed between the cooling water tower and the compressor. The other water outlet of the three-way valve is connected to the first water inlet of the first chiller, the first water outlet of the first chiller is connected to the water inlet of the compressor, and the cooling water tower, the first chiller and the compressor form a second loop; The second water inlet of the first chiller is connected to the water outlet of the cooling water tower, the second water outlet of the first chiller is connected to the water inlet of the cooling water tower, and the cooling water tower and the first chiller form a third loop; It also includes a second chiller, a water tank and a spray device; The first water inlet of the second chiller is connected to the water outlet of the cooling water tower, the first water outlet of the second chiller is connected to the water inlet of the cooling water tower, and a fourth loop is formed between the second chiller and the cooling water tower; The second water outlet of the second chiller is connected to the water inlet of the spray device and then connected to the water inlet of the water tank. The water outlet of the water tank is connected to the second water inlet of the second chiller, and a fifth loop is formed between the second chiller and the water tank. The spray device includes a water spray main pipe and a plurality of water spray pipes, the water inlet end of the water spray main pipe is connected between the second water outlet end of the second chiller and the water inlet end of the water tank, and all the water spray pipes are connected in parallel and then connected in series to the water outlet end of the water spray main pipe; A spray pool is provided below all the spray pipes, the spray pool is connected to a return water pump and then to the water tank, and a sixth loop is formed between the spray device, the water tank and the second chiller; A fourth valve is provided at one end of the fifth loop connected to the water inlet end of the water tank, and the spray device includes a fifth valve, which is provided at the water inlet end of the water spray main pipe.

2. The cooling energy-saving water circuit according to claim 1, characterized in that: The first circuit is connected to the cooling water tower and has two ends each provided with a first valve. The third circuit is connected to the first chiller and has two ends each provided with a second valve. The fourth circuit is connected to the second chiller and has two ends each provided with a third valve.

3. The cooling energy-saving water circuit according to claim 1, characterized in that: The spray device also includes a flow meter and a pressure sensor, and the flow meter and the pressure sensor are both arranged on the water spray main pipe.

4. The cooling energy-saving water circuit according to claim 1, characterized in that: The water tank is connected with a water replenishment port and a water discharge port.

5. The cooling and energy-saving water circuit according to claim 2, characterized in that: The spray device is connected to a drying device, which includes an air source, a pilot one-way valve and a sixth valve. The air outlet of the air source is sequentially connected to the pilot one-way valve and the sixth valve and then connected to the water spray main pipe.

6. The cooling energy-saving water circuit according to claim 5, characterized in that: A temperature control mechanism is included, and the temperature control mechanism is electrically connected to the three-way valve, the first chiller, the two first valves and the two second valves respectively.

7. The cooling and energy-saving water circuit according to claim 6, characterized in that: The temperature control mechanism is electrically connected to the second chiller, the two third valves, the fourth valve, the spray device and the drying device respectively.

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