Quick-response water chiller

Abstract

The utility model discloses a quick response chiller which comprises a refrigerant circulating system and a water circulating system, the refrigerant circulating system comprises a compressor, a condenser, a throttling element and a heat exchanger which are connected in sequence, and the water circulating system comprises a water tank, a pump and a heat exchanger which are connected in sequence; the refrigerant circulating system and the water circulating system share the same heat exchanger, a first inlet of the heat exchanger is connected with an outlet pipe of the throttling element, and a first outlet of the heat exchanger is connected with an inlet pipe of the compressor; a second inlet of the heat exchanger is connected with an outlet pipe of the pump; a second outlet of the heat exchanger is connected with an inlet pipe of the water tank; a bypass pipe is arranged on a water inlet pipe of the water tank, and a water return pipe is further arranged at an inlet of the water tank. The quick-response water chiller provided by the utility model can refrigerate circulating water in a short time so as to avoid delaying production, and meanwhile, the water in the whole water tank is prevented from being refrigerated, so that the aim of saving energy is fulfilled.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to a fast-response chiller. Background Technology

[0002] In existing technology, the evaporator of a chilled water machine is placed directly in the water tank (e.g., Figure 1 As shown), it is used to cool the water in the water tank. The cooled water is then sent to various devices that need to use chilled water, and the returned water is sent back to the water tank for cooling, and so on. However, this solution has some shortcomings: (1) it is difficult to cool a whole tank of water to the required temperature in a short time, and the long waiting period affects normal production; (2) a whole tank of water needs to be cooled every time it is run, but the amount of chilled water used in actual production is not constant, and waste occurs when the amount of chilled water used is small. In view of the above technical problems, this application proposes a new chilled water machine that can quickly reduce the water temperature to the expected temperature and achieve the purpose of energy saving. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a fast-response chiller, which aims to solve the technical problems of slow response speed and energy waste in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fast-response chiller includes a refrigerant circulation system and a water circulation system. The refrigerant circulation system includes a compressor, a condenser, a throttling element, and a heat exchanger connected in sequence. The water circulation system includes a water tank, a pump, and a heat exchanger connected in sequence. The refrigerant circulation system and the water circulation system share the same heat exchanger. The first inlet of the heat exchanger is connected to the outlet pipe of the throttling element, and the first outlet of the heat exchanger is connected to the inlet pipe of the compressor. The second inlet of the heat exchanger is connected to the outlet pipe of the pump, and the second outlet of the heat exchanger is connected to the inlet pipe of the water tank. A bypass pipe is provided on the inlet pipe of the water tank, and a return pipe is also provided at the inlet of the water tank.

[0006] Furthermore, in the aforementioned fast-response chiller, a first valve and a first flow meter are installed on the inlet pipe of the water tank; a second valve and a second flow meter are installed on the bypass pipe.

[0007] Furthermore, in the aforementioned fast-response chiller, a third valve and a third flow meter are installed on the return water pipe.

[0008] Furthermore, in the aforementioned fast-response chiller, a fourth valve and a fourth flow meter are installed on the pump's outlet pipe.

[0009] Further, the quick response ice water machine has the heat exchanger being a plate type heat exchanger.

[0010] Further, the quick response ice water machine has the compressor being a scroll type compressor.

[0011] Further, the quick response ice water machine has the quick response ice water machine comprising a shell, a horizontal partition plate being arranged in the shell, and the water tank being arranged on the partition plate; the compressor, the condenser, the heat exchanger and the pump being arranged on a bottom plate of the shell.

[0012] Beneficial effects: the quick response ice water machine provided by the utility model compares prior art, sets up the evaporator (namely: heat exchanger) outside the water tank, when needing to use the frozen water, the water in the water tank is pumped to the heat exchanger and can be cooled rapidly to reach the expected temperature, then is sent to the equipment needing to use the frozen water through the bypass pipe. By comparison, the water in the whole water tank does not need to be cooled down, the long waiting time is saved, and the production is avoided from being delayed. In addition, the technical scheme provided by the application does not need to freeze and cool down the water in the whole water tank, thereby realizing the purpose of energy saving and consumption reduction. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the working principle diagram of the ice water machine in prior art.

[0014] Figure 2 It is the working principle diagram of the quick response ice water machine provided by the utility model.

[0015] Figure 3 It is the perspective view of the quick response ice water machine provided by the utility model.

[0016] Reference numerals in the drawing:

[0017] 1, compressor; 2, condenser; 3, throttling element; 4, heat exchanger; 5, water tank; 6, pump;

[0018] 11, inlet pipe of compressor; 32, outlet pipe of throttling element; 51, inlet pipe of water tank; 511, bypass pipe; 59, backwater pipe; 62, outlet pipe of pump;

[0019] 91, shell; 911, bottom plate of shell; 92, partition plate. DETAILED DESCRIPTION

[0020] The utility model provides a quick response ice water machine, in order to make the purpose, technical scheme and effect of the utility model more clear, explicit, the following to the utility model further detailed explanation. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0021] Please refer toFigure 2 and Figure 3 This utility model provides a fast-response chiller. The accompanying drawings are for illustrative purposes only and are not proportional to actual products. The drawings only depict structures relevant to the inventive points of this application; some conventional structures are not specifically shown. The terms "first," "second," etc., used herein are merely different names for similar structures for ease of explanation and are not intended to limit this application. Figure 2 Not all pipes are labeled because they are easily identified based on the direction of fluid flow. Solid arrows in the diagram indicate the direction of refrigerant flow, while dashed arrows indicate the direction of water flow.

[0022] The fast-response chiller includes a refrigerant circulation system and a water circulation system. The refrigerant circulation system includes a compressor 1, a condenser 2, a throttling element 3, and a heat exchanger 4 connected in sequence. The water circulation system includes a water tank 5, a pump 6, and a heat exchanger 4 connected in sequence. The refrigerant circulation system and the water circulation system share the same heat exchanger 4. The first inlet of the heat exchanger is connected to the outlet pipe of the throttling element, and the first outlet of the heat exchanger is connected to the inlet pipe of the compressor. The second inlet of the heat exchanger is connected to the outlet pipe of the pump, and the second outlet of the heat exchanger is connected to the inlet pipe of the water tank. A bypass pipe 511 is provided on the inlet pipe 51 of the water tank, and a return pipe 59 is also provided at the inlet of the water tank.

[0023] The heat exchanger described above is used in a refrigerant circulation system and essentially functions as an evaporator. That is, the refrigerant enters the heat exchanger in a low-temperature, low-pressure liquid state, absorbs heat, and its temperature gradually rises, gradually evaporating from a liquid state to a gaseous state.

[0024] Water in the tank is pumped to the heat exchanger, where it releases heat and its temperature decreases. The water then flows through a bypass pipe to equipment that requires chilled water. Figure 2 (Represented by dashed lines in the middle) After the chilled water temperature rises, it returns to the water tank through the return pipe, and this cycle repeats. It is understandable that in actual production, there is often more than one piece of equipment that needs to use chilled water. Several branch pipes can be installed on the bypass pipe to connect to the equipment that needs to use chilled water.

[0025] Furthermore, a first valve 71 and a first flow meter 82 are installed on the inlet pipe of the water tank; a second valve 72 and a second flow meter 82 are installed on the bypass pipe. This arrangement facilitates separate control of the water volume in the inlet pipe and the bypass pipe of the water tank, improving operational flexibility.

[0026] Furthermore, a third valve 73 and a third flow meter 83 are installed on the return water pipe, which facilitates the control of the return water flow.

[0027] Preferably, a fourth valve 74 and a fourth flow meter 84 are provided on the outlet pipe of the pump. This arrangement facilitates the control of the pump's outlet flow rate, that is, facilitates the control of the flow rate of the circulating water passing through the heat exchanger.

[0028] Preferably, the heat exchanger 4 is a plate heat exchanger. The plate heat exchanger has the advantages of high heat exchange efficiency, compact structure, etc. In addition, the number of plates of the plate heat exchanger can be increased or decreased according to the actual heat exchange demand, and by changing the combination mode of the plates, the heat exchange area and the heat exchange capacity can be conveniently adjusted.

[0029] Preferably, the compressor 1 is a scroll compressor. The scroll compressor has the advantages of high efficiency, energy saving, stable operation, small size, etc., that is, it ensures the stable operation of the water chiller and ensures the compact structure of the water chiller as a whole.

[0030] The specific structure of the quick-response water chiller can have various arrangement modes, and a preferred scheme is proposed here: as shown in Figure 3 The quick-response water chiller includes a shell 91, a horizontal partition plate 92 is arranged in the shell, and a water tank is arranged on the partition plate; a compressor, a condenser, a heat exchanger, and a pump are arranged on the bottom plate 911 of the shell. The significance of arranging the water tank on the partition plate is: (1) thermal insulation: the compressor, the condenser, and other components will generate heat during operation, and the water in the water tank needs to be kept at a relatively low temperature to meet the refrigeration demand. Arranging the water tank on the partition plate can achieve thermal insulation to a certain extent, reduce the influence of the heat-generating components below on the water temperature in the water tank, help maintain the stability of the water temperature in the water tank, and improve the refrigeration performance and response speed of the water chiller. (2) facilitating the organization of heat dissipation airflow: this layered arrangement is conducive to the organization and flow of heat dissipation airflow. The heat generated by the heat-generating components (such as the compressor and the condenser) below can be discharged through the corresponding heat dissipation channels (not shown in the figure), without being hindered by the water tank above. (3) facilitating the pumping of the pump: since the water tank is located relatively high, the water can continuously supply liquid to the pump inlet by gravity, reducing the possibility of pump idling or air suction due to insufficient liquid supply. This can make the pump run more stably, avoid problems such as cavitation caused by air suction, prolong the service life of the pump, and help maintain the normal working process and refrigeration effect of the water chiller.

[0031] Preferably, the water tank is arranged centrally on the partition plate to ensure that the center of gravity of the quick-response water chiller is centered and is not prone to tipping over.

[0032] Compared with the prior art, the application has the following innovative points: the evaporator of the refrigerant circulation system is not directly placed inside the water tank, but is placed outside the water tank; when the chilled water is needed, the water in the water tank is pumped to the heat exchanger to be rapidly cooled to the expected temperature, and then is sent to the equipment needing the chilled water through the bypass pipe. In comparison, the water in the entire water tank does not need to be cooled down, thereby saving the long waiting time and avoiding the delay of production. In addition, the technical solution proposed in the application does not need to freeze and cool down the water in the entire water tank, but realizes that "as much water as needed is cooled", thereby achieving the purpose of energy saving and consumption reduction.

[0033] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical solution and the inventive concept of the application, and all these changes or replacements shall belong to the protection scope of the application.

Claims

1. A quick-response ice-water machine comprising a refrigerant circulation system and a water circulation system, the refrigerant circulation system comprising a compressor, a condenser, a throttling element and a heat exchanger connected in sequence, characterized in that: The water circulation system comprises a water tank, a pump and a heat exchanger connected in sequence; the refrigerant circulation system and the water circulation system share the same heat exchanger, the first inlet of the heat exchanger is connected with the outlet pipe of the throttling element, the first outlet of the heat exchanger is connected with the inlet pipe of the compressor; the second inlet of the heat exchanger is connected with the outlet pipe of the pump, and the second outlet of the heat exchanger is connected with the inlet pipe of the water tank; a bypass pipe is arranged on the water inlet pipe of the water tank, and a backwater pipe is further arranged on the inlet of the water tank.

2. The fast-responding water ice machine according to claim 1, wherein: The inlet pipe of the water tank is provided with a first valve and a first flowmeter; the bypass pipe is provided with a second valve and a second flowmeter.

3. The quick response ice water machine according to claim 1, wherein: The backwater pipe is provided with a third valve and a third flowmeter.

4. The quick response ice water machine of claim 1, wherein: The outlet pipe of the pump is provided with a fourth valve and a fourth flowmeter.

5. The quick response ice water machine of claim 1, wherein: The heat exchanger is a plate heat exchanger.

6. The quick response ice water machine of claim 1, wherein: The compressor is a scroll compressor.

7. The quick response ice water machine of claim 1, wherein: The quick-response water ice machine comprises a shell, a horizontal partition plate arranged in the shell, a water tank arranged on the partition plate, a compressor, a condenser, a heat exchanger and a pump arranged on the bottom plate of the shell.

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