Chilled water networking system and workshop chilled water recycling system

Abstract

The utility model provides a chilled water networking system and a workshop chilled water recycling system. The chilled water networking system is used for networking air conditioner chilled water of two adjacent workshops. The chilled water networking system comprises a chilled water circulation system; the chilled water circulation system comprises a water collector and a chilled water pump; return chilled water of the central air-conditioning equipment enters an air-conditioning refrigerator evaporator through a water collector and a chilled water pump; chilled water return water absorbs the cooling capacity of refrigerant evaporation in the air conditioner refrigerator evaporator to be cooled into cold water; the chilled water circulation system further comprises a water segregator. Cold water obtained after backwater cooling of the chilled water is fed into a surface air cooler or a cooling coil of the air conditioning equipment through the water segregator; and the cold water exchanges heat with the treated air in the surface air cooler or the cooling coil of the air conditioning equipment, and then returns to the water chilling unit for cyclic retreatment. In the mode, the chilled water of the two adjacent workshops can be connected in series for use in a management connection and automatic control mode, so that the energy-saving effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of chilled water technology, and in particular to a chilled water network system and a chilled water recycling system for workshops. Background Technology

[0002] Currently, in the factory's air conditioning chilled water system, each workshop's chilled water system operates independently, meaning that the chilled water from each workshop cannot be used by other workshops, resulting in some waste and high energy consumption. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a chilled water network system and a workshop chilled water recycling system, so as to connect and automatically control the chilled water of two adjacent workshops in series, thereby achieving the effect of energy saving.

[0004] In a first aspect, this utility model provides a chilled water network system for connecting the chilled water systems of two adjacent workshops. The chilled water network system includes a chilled water circulation system, which includes a water collector and a chilled water pump. The chilled water return from the central air conditioning unit enters the evaporator of the air conditioning chiller via the water collector and the chilled water pump. The chilled water return absorbs the cooling energy of the refrigerant evaporation in the air conditioning chiller evaporator and is cooled to become chilled water. The chilled water circulation system also includes a water distributor. The cooled chilled water is sent to the surface cooler or cooling coil of the air conditioning unit through the water distributor. After exchanging heat with the air being processed in the surface cooler or cooling coil of the air conditioning unit, the chilled water returns to the chiller unit for further circulation and processing.

[0005] In an optional embodiment of this application, the water distributor includes: a first electric valve, a second electric valve, and a pipeline connecting valve group; after the chilled water is cooled by the return chilled water, it enters the water distributor and is then sent to the surface cooler or cooling coil of the air conditioning equipment through the first electric valve, the second electric valve, and the pipeline connecting valve group.

[0006] In an optional embodiment of this application, the water collector, chilled water pump, and air conditioning chiller evaporator are connected in sequence; the first electric valve, the second electric valve, the pipeline connecting valve group, and the surface cooler of the air conditioning equipment are connected in sequence.

[0007] In optional embodiments of this application, the chilled water network system is connected to a plate heat exchanger, a chilled water pump, and a cooling water pump.

[0008] In an optional embodiment of this application, the chilled water pump and cooling water pump are installed in a refrigeration device, which includes a central air conditioning system.

[0009] In an optional embodiment of this application, the above-mentioned air conditioning chiller is used to perform low-temperature refrigeration by changing the pressure of the refrigerant gas through a compressor.

[0010] In an optional embodiment of this application, the water distributor is used to connect the supply and return water of each heating pipe in the water system and to form a water distribution and collection device.

[0011] In an optional embodiment of this application, the above-mentioned water collector is used as a water distribution and collection device to connect the supply and return water of each heating pipe in the water system.

[0012] In an optional embodiment of this application, the switching speed of the first electric valve and the second electric valve is adjustable.

[0013] Secondly, this utility model embodiment also provides a workshop chilled water recycling system, which includes: an air conditioning chilled water system for a first workshop, an air conditioning chilled water system for a second workshop, and the aforementioned chilled water network system; the air conditioning chilled water system for the first workshop, the chilled water network system, and the air conditioning chilled water system for the second workshop are connected in sequence.

[0014] The present invention provides the following beneficial effects:

[0015] This utility model provides a chilled water network system and a workshop chilled water recycling system. The chilled water network system is used to connect and reuse chilled water from two adjacent workshops. The chilled water network system includes a chilled water circulation system, which includes a water collector and a chilled water pump. Chilled water return from the central air conditioning unit enters the evaporator of the air conditioning chiller via the water collector and the chilled water pump. The returned chilled water absorbs the cooling energy from the refrigerant evaporation in the evaporator and is cooled to become chilled water. The chilled water circulation system also includes a water distributor. The cooled chilled water is sent to the surface cooler or cooling coil of the air conditioning unit through the water distributor. After heat exchange with the air being treated in the surface cooler or cooling coil, the chilled water returns to the chiller unit for further recycling. In this method, chilled water from two adjacent workshops can be connected in series through management and automatic control, thereby achieving energy-saving effects.

[0016] Other features and advantages of this disclosure will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the techniques described above.

[0017] To make the above-mentioned objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific 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 from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a chilled water network system provided for an embodiment of this utility model;

[0020] Figure 2 A schematic diagram of a water distributor provided for an embodiment of this utility model;

[0021] Figure 3 A schematic diagram of a workshop chilled water recycling system provided in this embodiment of the present invention;

[0022] Figure 4 A schematic diagram illustrating the normal operating state of two production lines provided for an embodiment of this utility model;

[0023] Figure 5 A schematic diagram of another normal operating state of two production lines provided for an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram illustrating the interconnected state of air conditioning chilled water systems on two production lines, as provided in an embodiment of this utility model.

[0025] Icons: 100- Chilled water network system; 10- Chilled water circulation system; 1- Water collector; 2- Chilled water pump; 3- Air conditioning chiller; 4- Water distributor; 5- Air conditioning equipment; 41- First electric valve; 42- Second electric valve; 43- Pipeline connection valve group; 1000- Workshop chilled water circulation system; 200- Air conditioning chilled water system of the first workshop; 300- Air conditioning chilled water system of the second workshop. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions 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.

[0027] Currently, in the factory's air conditioning chilled water system, each workshop's chilled water system operates independently, meaning that the chilled water from each workshop cannot be used by other workshops, resulting in some waste and high energy consumption.

[0028] However, after investigation and calculation, it was found that the chilled water supply for air conditioning in adjacent workshops was sufficient to meet the needs of sharing a single set of chilled water supply across the workshops.

[0029] Based on this, the present invention provides a chilled water networking system and a workshop chilled water recycling system, which connects the chilled water of two adjacent workshops in series through management and automatic control, thereby achieving energy saving.

[0030] To facilitate understanding of this embodiment, a detailed description of a chilled water network system disclosed in this utility model embodiment will be provided first.

[0031] Example 1:

[0032] This utility model embodiment provides a chilled water network system for connecting the chilled water systems of two adjacent workshops. See also Figure 1 The diagram shows a chilled water network system 100, which includes a chilled water circulation system 10.

[0033] The chilled water circulation system 10 includes: a water collector 1 and a chilled water pump 2; the chilled water return from the central air conditioning equipment enters the evaporator of the air conditioning chiller 3 through the water collector 1 and the chilled water pump 2; the chilled water return absorbs the cooling energy of the refrigerant evaporation in the air conditioning chiller evaporator and is cooled to become chilled water;

[0034] The chilled water circulation system 10 also includes: a water distributor 4; chilled water after being cooled by the return chilled water is sent to the surface cooler or cooling coil of the air conditioning equipment 5 through the water distributor 4; after the chilled water exchanges heat with the air being treated in the surface cooler or cooling coil of the air conditioning equipment, it returns to the chiller unit for recirculation and reprocessing.

[0035] The chilled water network system in this embodiment can be electrically or manually controlled to connect the chilled water systems of two adjacent workshops. For example... Figure 1 As shown, the water collector 1, chilled water pump 2, and air conditioning chiller 3 evaporator are connected in sequence; the chilled water return from the central air conditioning system enters the air conditioning chiller evaporator via the water collector and chilled water pump. Inside the air conditioning chiller evaporator, the chilled water return absorbs the cold energy from the refrigerant evaporation, lowering its temperature to become chilled water.

[0036] See Figure 2The diagram shows a water distributor 4, which includes a first electric valve 41, a second electric valve 42, and a pipeline connecting valve group 43. After the chilled water is cooled by the return water, it enters the water distributor and is then sent to the surface cooler or cooling coil of the air conditioning equipment through the first electric valve, the second electric valve, and the pipeline connecting valve group.

[0037] like Figure 2 As shown, the first electric valve 41, the second electric valve 42, the pipeline connecting valve group 43, and the surface cooler of the air conditioning unit 5 are connected in sequence. After being cooled by the return chilled water, the chilled water enters the distributor and is then sent to the surface cooler or cooling coil of the air conditioning unit through the first electric valve, the second electric valve, and the pipeline connecting valve group. Inside the surface cooler or cooling coil, the chilled water exchanges heat with the air being processed before returning to the chiller unit for further circulation and processing.

[0038] This utility model provides a chilled water network system and a workshop chilled water recycling system. The chilled water network system is used to connect and reuse chilled water from two adjacent workshops. The chilled water network system includes a chilled water circulation system, which includes a water collector and a chilled water pump. Chilled water return from the central air conditioning unit enters the evaporator of the air conditioning chiller via the water collector and the chilled water pump. The returned chilled water absorbs the cooling energy from the refrigerant evaporation in the evaporator and is cooled to become chilled water. The chilled water circulation system also includes a water distributor. The cooled chilled water is sent to the surface cooler or cooling coil of the air conditioning unit through the water distributor. After heat exchange with the air being treated in the surface cooler or cooling coil, the chilled water returns to the chiller unit for further recycling. In this method, chilled water from two adjacent workshops can be connected in series through management and automatic control, thereby achieving energy-saving effects.

[0039] Example 2:

[0040] This utility model provides another chilled water network system, implemented based on the above embodiments. In some embodiments, the chilled water network system is connected to a plate heat exchanger, a chilled water pump, and a cooling water pump.

[0041] The chilled water network system in this embodiment can be used in conjunction with plate heat exchangers, chilled water pumps, and cooling water pumps during winter. Under the same pressure loss conditions, its heat transfer coefficient is 3-5 times higher than that of shell-and-tube heat exchangers, its footprint is one-third that of tube heat exchangers, and its heat recovery rate can reach over 90%.

[0042] Plate heat exchangers are a new type of high-efficiency heat exchanger consisting of a series of metal plates with a certain corrugated shape stacked together.

[0043] In some embodiments, the chilled water pump and cooling water pump described above are disposed in a refrigeration unit, which includes a central air conditioning system.

[0044] The chilled water pump in this embodiment is a chilled water circulation system, typically used in large refrigeration equipment such as central air conditioning systems. The cooling water pump in this embodiment is also a chilled water circulation system, typically used in large refrigeration equipment such as central air conditioning systems.

[0045] In some embodiments, the above-described air conditioning chiller is used to perform low-temperature refrigeration by changing the pressure of the refrigerant gas through a compressor.

[0046] In this embodiment, the air conditioning chiller refers to a mechanical device that uses a compressor to change the pressure of the refrigerant gas to achieve low-temperature refrigeration.

[0047] In some embodiments, the above-mentioned water distributor is used as a water distribution and collection device to connect the supply and return water of each heating pipe in a water system.

[0048] In this embodiment, the water distributor is a water distribution and collection device used in the water system to connect the supply and return water of each heating pipe. The water distributor is divided into inlet and return water distributors.

[0049] In some embodiments, the water collector described above is used as a water distribution and collection device to connect the supply and return water of each heating pipe in a water system.

[0050] In this embodiment, the water collector is a water distribution and collection device used in the water system to connect the supply and return water of various heating pipes. The water collector is divided into inlet and return water collectors.

[0051] In some embodiments, the switching speed of the first electric valve and the second electric valve is adjustable.

[0052] In this embodiment, the valve operating torque of the first and second electric valves is greater than that of ordinary valves. The opening and closing speeds of the first and second electric valves can be adjusted. The structure is simple and easy to maintain.

[0053] The chilled water network system provided in this embodiment of the present invention can connect and automatically control the chilled water of two adjacent workshops in series, thereby achieving energy-saving effects.

[0054] Example 3:

[0055] Corresponding to the above embodiments, this embodiment provides a workshop chilled water recycling system. See also... Figure 3The diagram shows a structural schematic of a workshop chilled water recycling system 1000, which includes: a first workshop chilled water system 200, a second workshop chilled water system 300, and a chilled water network system 100 provided in the aforementioned embodiment; the first workshop chilled water system 200, the chilled water network system 100, and the second workshop chilled water system 300 are connected in sequence.

[0056] See also Figure 4 The diagram shows two production lines operating normally. Figure 5 The diagram shows another two production lines in normal operation. Figure 6 The diagram shows a network connection of chilled water systems for two production lines.

[0057] in, Figure 4 This shows the normal operating state of line D. Figure 5 The diagram shows the operating state where the pressure can directly meet the needs of three air conditioning units. Figure 6 The diagram shows the operating conditions required when the pressure is insufficient after the air conditioning chilled water system of the ampoule production line is connected to the network. Figure 4 , Figure 5 and Figure 6 The valves shown in the dashed lines are newly added valves in this embodiment.

[0058] like Figure 4 , Figure 5 and Figure 6 As shown, when the pressure cannot meet the needs of the three air conditioning units on line D, the chilled water pump on line D can be used to supplement the supply. However, the energy-saving effect of this solution is not significant, the cooling water pump cannot be shut down, and there is also a process chiller in the cooling water system. During the transitional season, when the chiller stops, the energy consumption can be transferred to the UD chiller unit in the second workshop. Compared with the above solution, which separates one unit, the energy efficiency ratio is higher. When the plate heat exchanger can meet the needs of workshop 2 in winter, the time that the chiller on line D is shut down can save the energy consumption of one chiller.

[0059] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the workshop chilled water recycling system described above can be referred to the corresponding process in the embodiment of the chilled water network system, and will not be repeated here.

[0060] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0061] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0062] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, 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, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A chilled water network system, characterized in that, The chilled water network system is used to connect the chilled water systems of two adjacent workshops for air conditioning use. The chilled water network system includes: a chilled water circulation system; The chilled water circulation system includes: a water collector and a chilled water pump; the chilled water return from the central air conditioning equipment enters the evaporator of the air conditioning chiller through the water collector and the chilled water pump; the chilled water return absorbs the cooling energy of the refrigerant evaporation in the air conditioning chiller evaporator and is cooled to become chilled water. The chilled water circulation system further includes: a water distributor; the chilled water after being cooled by the return chilled water is sent to the surface cooler or cooling coil of the air conditioning equipment through the water distributor; after the chilled water exchanges heat with the air being treated in the surface cooler or cooling coil of the air conditioning equipment, it returns to the chiller unit for recirculation and reprocessing.

2. The chilled water network system according to claim 1, characterized in that, The water distributor includes: a first electric valve, a second electric valve, and a pipeline connecting valve group; After the chilled water is cooled by the return water, it enters the water distributor and is then sent to the surface cooler or cooling coil of the air conditioning equipment through the first electric valve, the second electric valve and the pipeline connecting valve group.

3. The chilled water network system according to claim 2, characterized in that, The water collector, the chilled water pump, and the air conditioning chiller evaporator are connected in sequence; The first electric valve, the second electric valve, the pipeline connecting valve group, and the surface cooler of the air conditioning equipment are connected in sequence.

4. The chilled water network system according to claim 1, characterized in that, The chilled water network system is connected to the plate heat exchanger, the chilled water network system is connected to the chilled water pump, and the chilled water network system is connected to the cooling water pump.

5. The chilled water network system according to claim 4, characterized in that, The chilled water pump and the cooling water pump are installed in the refrigeration equipment, which includes a central air conditioning system.

6. The chilled water network system according to claim 1, characterized in that, The air conditioning chiller is used to achieve low-temperature refrigeration by changing the pressure of the refrigerant gas through a compressor.

7. The chilled water network system according to claim 1, characterized in that, The water distributor is used to connect the supply and return water of each heating pipe in the water system and to distribute and collect water.

8. The chilled water network system according to claim 1, characterized in that, The water collector is used to connect the supply and return water of each heating pipe in the water system and to collect and distribute the water.

9. The chilled water network system according to claim 2, characterized in that, The switching speeds of the first and second electric valves are adjustable.

10. A workshop chilled water recycling system, characterized in that, The workshop chilled water recycling system includes: an air conditioning chilled water system for the first workshop, an air conditioning chilled water system for the second workshop, and a chilled water network system as described in any one of claims 1-9; The air conditioning chilled water system of the first workshop, the chilled water network system, and the air conditioning chilled water system of the second workshop are connected in sequence.

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