Energy-saving workshop cooling system capable of achieving multi-barrel alternate refrigeration

Abstract

The utility model relates to an energy-saving workshop cooling system with multiple barrels for refrigeration in turn. The energy-saving workshop cooling system comprises more than one cooling-water machine, more than two heat preservation barrels, a workshop air pipe and an air outlet evaporator. A cold water supply and heat preservation barrel water temperature sensor is arranged in each heat preservation barrel, more than two refrigeration copper pipes are connected into more than two heat preservation barrels from one cooling-water machine, or more than two refrigeration copper pipes are connected into more than two heat preservation barrels from more than two cooling-water machines. Water outlets of all the heat preservation barrels are externally connected with a cold water electromagnetic valve and then combined and connected to a cold water pump for water inlet, water outlet of the cold water pump is connected with an evaporator cold water pipe, and the evaporator cold water pipe is connected with evaporator water inlet of a plurality of air outlets of the workshop air pipe terminal. The hot water pipes are combined through the multiple hot water electromagnetic valves and connected to the water inlets of the multiple heat preservation barrels.

Description

Technical Field

[0001] The utility model relates to a cooling system, in particular to an energy-saving multi-barrel rotation refrigeration workshop cooling system. Background Art

[0002] With the establishment of a harmonious and spiritually civilized society in my country, the occupational health of employees who highlight humanistic values ​​has received more and more attention. In this environment, enterprises need to provide employees with a comfortable workshop working environment, in which temperature control requires a cooling system to control the workshop temperature within 32°C. There are roughly three solutions currently adopted in the market. One is to use an expensive central air-conditioning system, the second is to use a water curtain system that is easy to breed bacteria, and the third is to use a groundwater water cooler that is not environmentally friendly. Most of the above solutions have problems such as high cost, high power consumption, and complex cooling system pipe network. Under the current situation where the country advocates energy conservation and emission reduction, it is urgent to develop a system solution for energy conservation and cooling in workshops. Summary of the invention

[0003] The utility model provides an energy-saving multi-barrel rotation refrigeration workshop cooling system which has a simple and compact structure and can effectively ensure continuous refrigeration and cooling as well as energy saving and consumption reduction.

[0004] The technical scheme adopted by the utility model is: an energy-saving multi-barrel rotation refrigeration workshop cooling system, including more than one chiller, workshop air duct and more than one evaporator, characterized in that: it also includes more than two insulation barrels, the insulation barrels are provided with cold water supply and insulation barrel water temperature sensors, one chiller is connected with more than two refrigeration copper tubes respectively to more than two insulation barrels, or more than two chillers are respectively connected with more than two refrigeration copper tubes to more than two insulation barrels, the water outlet of each insulation barrel is externally connected to a cold water solenoid valve and then combined to be connected to a cold water pump water inlet, the cold water pump outlet water is connected to the evaporator cold water pipe, the evaporator cold water pipe is respectively connected to the evaporator water inlet of multiple air outlets of the workshop air duct terminal, the water outlets of multiple evaporators are all sent to hot water pipes, and the hot water pipes are respectively combined through multiple hot water solenoid valves and sent to the water inlets of multiple insulation barrels.

[0005] Furthermore, the multiple air outlets of the workshop air duct terminal are equipped with fans corresponding to the evaporators.

[0006] Furthermore, a fan is arranged at the head end of the workshop air duct.

[0007] Furthermore, the fan is a centrifugal fan.

[0008] Furthermore, the water inlet of the heat preservation barrel is arranged at the upper part or the top, and the water outlet is arranged at the lower part or the bottom.

[0009] Furthermore, the heat preservation barrel is arranged inside or outside the chiller.

[0010] Furthermore, the water chiller, the water temperature sensor of the insulation bucket, the cold water solenoid valve, the cold water pump, and the hot water solenoid valve are all connected to a controller.

[0011] Furthermore, it also includes a workshop temperature sensor, and the workshop temperature sensor is connected to the controller.

[0012] Furthermore, it also includes a water pipe water pressure sensor, and the water pressure sensor is connected to the controller.

[0013] Furthermore, it also includes a water pipe water flow sensor, and the water flow sensor is connected to the controller.

[0014] Furthermore, it also includes a workshop air duct wind pressure sensor, and the wind pressure sensor is connected to the controller.

[0015] Furthermore, it also includes an air supply wind speed sensor, which is arranged in the workshop air duct and connected to the controller.

[0016] Furthermore, it also includes a supply air temperature sensor, which is arranged outside the air outlet and connected to the controller.

[0017] Furthermore, the evaporator cold water pipe is placed in the workshop air duct, and the hot water pipe is placed in the workshop air duct.

[0018] By adopting the above technical scheme, the beneficial effect achieved by the utility model is as follows: the water outlet of any insulation barrel is used to supply cold water to the evaporator through the cold water solenoid valve, the cold water pump, and the cold water pipe of the evaporator; the cold water of the evaporator is connected back to the water inlet of any insulation barrel through the hot water pipe by the hot water solenoid valve corresponding to any insulation barrel; the evaporator is cooled by the fan; the water temperature of each insulation barrel is repeatedly and continuously detected by the insulation barrel water temperature sensors in more than two insulation barrels in real time; when the water temperature in any insulation barrel reaches the set high temperature, the water outlet and water inlet of the insulation barrel are closed, and the other insulation barrel is switched. One insulation barrel supplies water, and at the same time the chiller is powered on, and any insulation barrel that reaches the set high temperature is cooled to a reasonable water temperature through the refrigeration pipe, and the power on and off of the chiller with the largest power consumption is controlled. The water inlet of the cold water pump is also continuously switched to the insulation barrel with a reasonable water temperature to discharge water, and the hot water in the other insulation barrel reaches the set high temperature. Repeating the above switching cycle can actually shorten the cooling time of the chiller. The entire cooling system can effectively save electricity and reduce consumption, and at the same time ensure that the workshop continues to output constant temperature cold air that is comfortable for the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] In the figure: chiller 1, first refrigeration copper tube 2, first insulation barrel 3, insulation barrel water temperature sensor 4, water inlet 5, water outlet 6, first cold water solenoid valve 7, cold water pump 8, second refrigeration copper tube 9, second insulation barrel 10, second cold water solenoid valve 11, evaporator cold water pipe 12, workshop air duct 13, centrifugal fan 14, evaporator 15, hot water pipe 16, first hot water solenoid valve 17, second hot water solenoid valve 18. DETAILED DESCRIPTION

[0021] The invention is further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 As shown, an energy-saving multi-barrel rotation refrigeration workshop cooling system includes a chiller 1, a first refrigeration copper tube 2, a first insulation barrel 3, an insulation barrel water temperature sensor 4, a first cold water solenoid valve 7, a cold water pump 8, a second refrigeration copper tube 9, a second insulation barrel 10, a second cold water solenoid valve 11, an evaporator cold water pipe 12, a workshop air duct 13, a centrifugal fan 14, an evaporator 15, a hot water pipe 16, a first hot water solenoid valve 17, and a second hot water solenoid valve 18.

[0023] A centrifugal fan 14 is arranged at the head end of the workshop air duct 13, and evaporators 15 are arranged in multiple air outlets of the indoor terminal of the workshop air duct 13; the first and second refrigeration copper tubes 2 and 9 are connected to the first and second insulation barrels 3 and 10 respectively in the chiller 1, and the first and second insulation barrels 3 and 10 are provided with insulation barrel water temperature sensors 4 and cold water supply, the lower water outlets 6 of the first and second insulation barrels are respectively connected to the first and second cold water solenoid valves 7 and 11 and then combined and sent to the cold water pump 8 for water inlet, the cold water pump 8 outlet water is connected to the evaporator cold water pipe 12, and the evaporator cold water pipe 12 is respectively connected to the evaporator 15 inlet water of multiple air outlets of the workshop air duct terminal, and the outlet water of multiple evaporators 15 is sent to the hot water pipe 16, and the hot water pipe 16 is connected to the upper water inlet 5 of the first and second insulation barrels 3 and 10 through the first and second hot water solenoid valves 17 and 18 respectively.

[0024] The operating principle of this system is:

[0025] During initial operation, the first insulation barrel 3 and the second insulation barrel 10 are always filled with cold water at room temperature, and the centrifugal fan 14 is powered on. If the water temperature of the water chiller 1 detects that the water temperature in the first insulation barrel 3 is too high through the insulation barrel water temperature sensor 4 in the first insulation barrel 3, the water chiller 1 is powered on to cool down, and the first refrigeration copper tube 2 cools the water in the first insulation barrel 3 to cold water of a preset temperature. After the insulation barrel water temperature sensor 4 in the first insulation barrel 3 detects that the water temperature has reached a certain level, the water chiller 1 is powered off.

[0026] After the cold water temperature of the first insulation barrel 3 reaches the preset cold water temperature, the chiller 1 will automatically detect the water temperature in the second insulation barrel 10 again. If the insulation barrel water temperature sensor in the second insulation barrel 10 detects that the water temperature in the second insulation barrel 10 is also high, the chiller 1 continues to power on and cool down the water in the second insulation barrel 10 to the preset temperature of cold water.

[0027] If the chiller 1 detects that the water temperature of the first insulation barrel 3 reaches the preset cold water temperature first, the first cold water solenoid valve 7, the first hot water solenoid valve 17, and the cold water pump 8 are powered on, and the first cold water solenoid valve 7 delivers cold water to the cold water pump 8 at the water outlet 6 of the first insulation barrel 3. At this time, the second cold water solenoid valve 11 and the second hot water solenoid valve 18 are in a non-powered closed state, isolating the water in the second insulation barrel 10, and then the cold water pump 8 outputs water through the evaporator cold water pipe 12, and the cold water is transported to the evaporator 15 installed at each air outlet of the workshop air duct 13 terminal. The evaporator 15 outputs hot water, and the hot water is returned to the water inlet 5 of the first insulation barrel 3 by the hot water pipe 16 through the first hot water solenoid valve 17; at this point, each air outlet of the workshop air duct 11 terminal opening blows out high-speed wind, which is continuously transported to the entire workshop for cooling after being cooled by the evaporator 15.

[0028] During the period when the first insulation barrel 3 continues to supply water to the workshop: if the insulation barrel water temperature sensor 4 in the first insulation barrel 3 detects again that the water temperature in the first insulation barrel 3 rises to the preset upper limit hot water temperature, the system switches: the first cold water solenoid valve 7 and the first hot water solenoid valve 17 are powered off, the chiller 1 continues to be powered on to cool the first insulation barrel 3, the water inlet of the cold water pump 8 is switched to the second cold water solenoid valve 11 and the second hot water solenoid valve 18 are powered on, and the water outlet of the second insulation barrel 10 provides cold water to the workshop for cooling;

[0029] As described above: the water temperature of the first and second insulation barrels 3 and 10 is repeatedly detected by the insulation barrel water temperature sensor 4 to control the power on and off of the chiller 1 with the largest power consumption, and the water inlet of the cold water pump 8 is also continuously switched to the water outlet 6 of the first and second insulation barrels 3 and 10 with reasonable water temperature, and at the same time, the first and second hot water solenoid valves 17 and 18 that are continuously switched to the return water of the hot water pipe 16 are connected to the water inlet 5 of the first and second insulation barrels 3 and 10.

[0030] This patented solution has been put into practical use: in a workshop of 1,000 square meters and 3.5 meters in height, the power consumption is only 25 kWh / day, with low operating costs, saving the company's economic burden. At the same time, it ensures that the workshop temperature of 36°C can be cooled to 28°C-30°C within 1 hour and then maintained at a constant temperature, providing a comfortable working environment for workshop employees.

[0031] In this embodiment, only one water chiller is listed to be connected to two insulation barrels for rotational cooling. One water chiller can also be connected to more insulation barrels for switching; or multiple water chillers can be configured, one insulation barrel can be configured with one water chiller, or one insulation barrel can be configured with multiple water chillers. All changes in the number of water chillers and insulation barrels and the switching rotation are within the scope of protection of this application.

[0032] In this embodiment, the first and second insulation barrels can be placed inside the chiller or outside the chiller, and any placement of the insulation barrels is within the protection scope of this application.

[0033] In this embodiment, the water chiller, the water temperature sensor of the insulation bucket, the cold water solenoid valve, the cold water pump, and the hot water solenoid valve are all connected to the controller.

[0034] Based on this embodiment, it also includes a workshop air duct wind pressure sensor, a workshop air duct wind speed sensor, a water pipe water pressure sensor, a water pipe water flow sensor, a workshop temperature sensor, and a workshop temperature sensor connection controller.

[0035] Based on this embodiment, it also includes a supply air temperature sensor, which is arranged outside the air outlet and connected to the controller.

Claims

1. An energy-saving multi-barrel rotation refrigeration workshop cooling system, comprising one or more chillers, workshop air ducts and one or more evaporators, characterized in that: It also includes more than two insulation barrels, which are equipped with cold water supply and insulation barrel water temperature sensors. One chiller is connected to more than two refrigeration copper pipes and are respectively connected to more than two insulation barrels, or more than two chillers are respectively connected to more than two insulation barrels. The water outlet of each insulation barrel is externally connected to a cold water solenoid valve and then combined to be sent to a cold water pump water inlet. The cold water pump outlet is connected to the evaporator cold water pipe, and the evaporator cold water pipe is respectively connected to the evaporator water inlet of multiple air outlets at the workshop air duct terminal. The water outlets of multiple evaporators are all sent to hot water pipes, and the hot water pipes are respectively connected to the water inlets of multiple insulation barrels through multiple hot water solenoid valves.

2. According to claim 1, an energy-saving multi-barrel rotation refrigeration workshop cooling system is characterized by: The terminal multiple air outlets of the workshop air duct are equipped with fans corresponding to the evaporators, or the head end of the workshop air duct is provided with a fan.

3. According to claim 2, an energy-saving multi-barrel rotation refrigeration workshop cooling system is characterized by: The fan is a centrifugal fan.

4. The energy-saving multi-barrel rotation refrigeration workshop cooling system according to claim 1 is characterized by: The water inlet of the heat preservation barrel is arranged at the upper part or the top, and the water outlet is arranged at the lower part or the bottom.

5. The energy-saving multi-barrel rotation refrigeration workshop cooling system according to claim 1 is characterized by: The heat preservation barrel is arranged in the water chiller, or arranged outside the water chiller.

6. The energy-saving multi-barrel rotation refrigeration workshop cooling system according to claim 1 is characterized by: The water chiller, the water temperature sensor of the heat preservation bucket, the cold water solenoid valve, the cold water pump and the hot water solenoid valve are all connected to the controller.

7. The energy-saving multi-barrel rotation refrigeration workshop cooling system according to claim 1 is characterized by: It also includes a workshop temperature sensor and an air supply temperature sensor. The air supply temperature sensor is arranged outside the air outlet and connected to a controller. The workshop temperature sensor is arranged in the workshop and connected to a controller.

8. The energy-saving multi-barrel rotation refrigeration workshop cooling system according to claim 1 is characterized by: It also includes a water pressure sensor, which is arranged on the cold water pipe and / or hot water pipe of the evaporator and is connected to the controller.

9. The energy-saving multi-barrel rotation refrigeration workshop cooling system according to claim 1 is characterized by: It also includes a wind pressure sensor and a wind speed sensor for the workshop air duct, and the wind pressure sensor and the wind speed sensor are connected to a controller.

10. The energy-saving multi-barrel rotation refrigeration workshop cooling system according to claim 1 is characterized by: The cold water pipe of the evaporator is placed in the air duct of the workshop, and the hot water pipe is placed in the air duct of the workshop.

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