Refrigeration device and system for production equipment

Abstract

The invention discloses a refrigerating device and system for production equipment in the technical field of refrigerating systems, and aims to solve the problems that in the prior art, a water chilling unit directly discharges a heat source in a workshop, the working environment in the workshop is affected, the energy consumption and the maintenance cost are high, and meanwhile, the temperature of supplied cold water is too low, so that an impurity removing machine generates condensed water. The system comprises an air conditioning cabinet, a refrigerator, a first heat exchange plate and production equipment, a first supply pipeline and a first water return pipeline are arranged on the outer wall of the air conditioning cabinet, the first supply pipeline communicates with the production equipment through a second supply pipeline, and the first water return pipeline communicates with the production equipment through a second water return pipeline; cooling water is supplied through the refrigerating machine and the first heat exchange plate, the problem that the process water cooling equipment directly discharges a heat source in a workshop room is solved, air conditioner energy consumption is reduced, air conditioner cold water and return water can conduct heat exchange work through the second heat exchange plate, and heat exchange efficiency is improved. The problem that production equipment generates condensed water due to too low temperature of supplied cold water is solved.

Description

Technical Field

[0001] The invention relates to a refrigeration device and a system for production equipment, belonging to the technical field of refrigeration systems. Background Art

[0002] A de-duster is a device used to remove debris and foreign matter from tobacco. It is mainly used in tobacco production, warehouses, and sales to ensure the purity and quality of tobacco. It includes tobacco laser de-dusters and photoelectric de-dusters. In the production process of cigarette silk, detecting and removing debris from tobacco leaves is a key process control project, so de-dusters are generally used to remove debris at this stage. However, the internal components of the de-duster are prone to heat during operation, so a corresponding cooling system is required. At present, the de-duster system of the main silk production line generally uses a dedicated chiller for cooling, and the unit is often placed at the production site in the workshop.

[0003] In the prior art, when cooling down the impurity remover, a chiller placed in the workshop production site is usually used for cooling down. The chiller directly discharges heat sources in the workshop, affecting the working environment in the workshop, and has high energy consumption and maintenance costs. At the same time, it is difficult to control the temperature of the supplied cold water. There is a problem that the supply cold water temperature is too low, causing condensation water in the impurity remover. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a refrigeration device and system for production equipment, so as to solve the problem that in the prior art, when cooling down a de-duster, a chiller placed in a workshop production site is usually used for cooling down the temperature. The chiller directly discharges heat sources in the workshop, affecting the working environment in the workshop, and has high energy consumption and maintenance costs. At the same time, it is difficult to control the temperature of the supplied cold water, and there is a problem that the supplied cold water temperature is too low, resulting in condensation water in the de-duster.

[0005] In order to solve the above technical problems, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides a refrigeration device for production equipment, comprising an air conditioning box, a refrigerator and a first heat exchange plate, wherein a first supply pipeline and a first return water pipeline are provided on an outer wall of the air conditioning box, the refrigerator and the first heat exchange plate are both connected to the first supply pipeline and the first return water pipeline, the first supply pipeline and the production equipment are connected through a second supply pipeline, and the first return water pipeline and the production equipment are connected through a second return water pipeline; The production equipment is connected to a process cooling water device, the second supply pipeline is provided with a first on-off mechanism, the second return pipeline is provided with a second on-off mechanism, and the first on-off mechanism and the second on-off mechanism are connected to the same second heat exchange plate.

[0006] Furthermore, a valve ten and a filter are provided on the second supply pipeline, and a valve one is provided on the second return pipeline.

[0007] Furthermore, the first on-off mechanism includes a first reserved port and a second reserved port provided on the second supply pipeline, the first reserved port is connected to the second reserved port through the second heat exchange plate, a valve nine is provided on the first reserved port, a valve eight is provided on the second reserved port, and a valve seven is provided between the first reserved port and the second reserved port on the second supply pipeline.

[0008] Furthermore, one end of the second supply pipeline is connected to the first supply pipeline, the other end of the second supply pipeline is connected to the first connecting pipeline, the other end of the first connecting pipeline is connected to the first connecting pipe through the valve seven, and the other end of the first connecting pipe is connected to the production equipment.

[0009] Furthermore, the second on-off mechanism includes a third reserved port and a fourth reserved port provided on the second water return pipeline, the third reserved port is connected to the fourth reserved port through the second heat exchange plate, a valve four is provided on the third reserved port, a valve three is provided on the fourth reserved port, and a valve two is provided between the third reserved port and the fourth reserved port on the second water return pipeline.

[0010] Furthermore, one end of the second return water pipeline is connected to the first return water pipeline, the other end of the second return water pipeline is connected to the second connecting pipeline, the other end of the second connecting pipeline is connected to the second connecting pipe through the valve 2, and the other end of the second connecting pipe is connected to the production equipment.

[0011] Furthermore, the second supply pipeline is connected to the production equipment through a cold water branch pipe group, and the cold water branch pipe group is provided with a first ball valve group. The second supply pipeline is provided with a flow meter, a first temperature sensor, a pressure sensor and a first vent valve in sequence on one side of the cold water branch pipe group.

[0012] Furthermore, the second return water pipeline is connected to the production equipment through a return water branch pipe group, and the return water branch pipe group is provided with a second ball valve group and a temperature sensor group. The second return water pipeline is provided with a second vent valve on one side of the return water branch pipe group.

[0013] Furthermore, the process chiller includes a first chiller, a second chiller, a third chiller and a fourth chiller, and the first chiller, the second chiller, the third chiller and the fourth chiller are all connected to the production equipment.

[0014] In a second aspect, the present invention provides a refrigeration system for production equipment, based on the refrigeration device for production equipment described in the first aspect, including an air-conditioning box and a process cooling water device, one end of the production equipment and one end of the process cooling water device are both connected to one end of a first on-off mechanism, the other end of the production equipment and the other end of the process cooling water device are both connected to one end of a second on-off mechanism, one end of the air-conditioning box and the other end of the first on-off mechanism are both connected to one end of a refrigerator and one end of a first heat exchange plate, the other end of the refrigerator and the other end of the first heat exchange plate are both connected to the other end of the air-conditioning box and the other end of the second on-off mechanism, the first on-off mechanism and the second on-off mechanism are connected to the same second heat exchange plate, and an electric valve and a temperature detector are provided on the production equipment, and the electric valve and the temperature detector are both electrically connected to a PLC.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The refrigeration device for production equipment supplies cooling water for the production equipment by respectively connecting a second supply pipeline and a second return pipeline to the first supply pipeline and the first return pipeline entering the air-conditioning box, thereby supplying cooling water through the refrigerator and the first heat exchange plate, solving the problem of direct heat source discharge of process cold water equipment in the workshop, thereby improving air conditioning energy consumption and reducing the use and maintenance costs of process cold water equipment; in addition, the high-efficiency cooling method of the refrigerator replaces the inefficient supply method of the process cold water equipment, increases the stability of the cold water supply, improves the comfort level of the production site environment, and realizes green and low-carbon operation in the form of cold water produced by the refrigerator in summer to supply the production equipment and cold water produced by the first heat exchange plate to supply the production equipment in winter. At the same time, by switching the states of the first on-off structure and the second on-off structure, the air-conditioning cold water and return water can be heat exchanged through the second heat exchange plate, solving the problem of condensation water generated in the production equipment due to too low supply cold water temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the three-dimensional structure of a refrigeration device for production equipment provided according to an embodiment of the present invention; Figure 2 is a schematic diagram of the three-dimensional structure of a first water return pipeline provided according to an embodiment of the present invention; Figure 3 is a schematic diagram of the three-dimensional structure of a first on-off mechanism provided according to an embodiment of the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of a first ball valve group provided according to an embodiment of the present invention; Figure 5 is a schematic diagram of the three-dimensional structure of a second ball valve group provided according to an embodiment of the present invention; Figure 6is a schematic diagram of the three-dimensional structure of a process cooling water device provided according to an embodiment of the present invention; Figure 7 It is a connection diagram of a refrigeration system for production equipment provided according to an embodiment of the present invention.

[0017] In the figure: 1, first supply pipeline; 2, air conditioning box; 3, first return pipeline; 4, second supply pipeline; 5, valve ten; 6, filter; 7, valve one; 8, second return pipeline; 9, first connecting pipeline; 10, valve nine; 11, first reserved port; 12, valve seven; 13, first connecting pipe; 14, valve eight; 15, second reserved port; 16, second connecting pipe; 17, valve four; 18, third reserved port; 19. Valve 2; 20. Fourth reserved port; 21. Valve 3; 22. Second connecting pipeline; 23. Flow meter; 24. First temperature sensor; 25. Pressure sensor; 26. First vent valve; 27. First cold water branch; 28. Second cold water branch; 29. ​​Third cold water branch; 30. First ball valve; 31. Second ball valve; 32. Third ball valve; 33. First return water branch; 34. Second vent valve; 35. Second return water branch; 36. Third return water branch; 37. Second temperature sensor; 38. Fourth ball valve; 39. Third temperature sensor; 40. Fifth ball valve; 41. Fourth temperature sensor; 42. Sixth ball valve; 43. First chiller; 44. Second chiller; 45. Third chiller; 46. First water supply pipe; 47. First water supply pipe; 48. First return water pipe; 49. Second water supply pipe; 50. Second Make-up water pipe; 51, second return water pipe; 52, fourth chiller; 53, third return water pipe; 54, third make-up water pipe; 55, third water supply pipe; 56, make-up water main pipe; 57, fourth water supply pipe; 58, fourth make-up water pipe; 59, fourth return water pipe; 60, third set of return water pipes; 61, third set of supply water pipes; 62, second set of return water pipes; 63, second set of supply water pipes; 64, first set of return water pipes; 65, first set of supply water pipes. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] Embodiment 1:

[0022] like Figure 1-Figure 6 As shown, the present invention provides a refrigeration device for production equipment, including an air-conditioning box 2, a refrigerator and a first heat exchange plate, the outer wall of the air-conditioning box 2 is provided with a first supply pipeline 1 and a first return pipeline 3, the refrigerator and the first heat exchange plate are both connected with the first supply pipeline 1 and the first return pipeline 3, the first supply pipeline 1 and the production equipment are connected through a second supply pipeline 4, the first return pipeline 3 and the production equipment are connected through a second return pipeline 8; the production equipment is connected with a process cold water equipment, the second supply pipeline 4 is provided with a first on-off mechanism, the second return pipeline 8 is provided with a second on-off mechanism, and the first on-off mechanism and the second on-off mechanism are connected with the same second heat exchange plate.

[0023] Specifically, when the present application performs cooling work on the production equipment, the first heat exchange plate utilizes an outdoor cold source to replace the refrigerator to generate cold water in winter, and uses the refrigerator to supply cold water in other seasons, so as to reduce the energy consumption of cold water generation; the cold water is transported to the air-conditioning box 2 through a pipeline, and the cold water in the air-conditioning box 2 that completes the heat exchange flows back to the refrigeration equipment through a pipeline; when the process cold water equipment is not in use, the process cold water equipment can be manually closed, and then the first on-off mechanism and the second on-off mechanism are controlled to be in a connected state, at this time, the production equipment can be connected to the first supply pipeline 1, the second supply pipeline 4, the first return water pipeline 3 and the second return water pipeline 8 The refrigerator is connected to the first heat exchange plate, so that air-conditioning cold water is provided to the production equipment through the refrigerator and the first heat exchange plate; when the process cold water equipment needs to be used, the first on-off mechanism and the second on-off mechanism are controlled to be in the disconnected state, so that the process cold water equipment is connected to the production equipment, so as to cool down the production equipment; when the temperature of the supplied air-conditioning cold water is too low, the first on-off mechanism and the second on-off mechanism can be controlled to be partially disconnected, so that the air-conditioning cold water and return water flow through the second heat exchange plate, and the air-conditioning cold water is heated to avoid condensation inside the production equipment due to the air-conditioning cold water at too low a temperature.

[0024] The present application solves the problem of process cold water equipment directly discharging heat sources in the workshop by additionally connecting the second supply pipe 4 and the second return pipe 8 for cooling water for production equipment to the first supply pipe 1 and the first return pipe 3 entering the air-conditioning box 2, thereby supplying cooling water through the refrigerator and the first heat exchange plate, thereby improving the energy consumption of air conditioning and reducing the use and maintenance costs of process cold water equipment; in addition, the high-efficiency cooling method of the refrigerator replaces the inefficient supply method of the process cold water equipment, increases the stability of the cold water supply, improves the comfort level of the production site environment, and realizes green and low-carbon operation by producing cold water by the refrigerator in summer to supply production equipment and producing cold water by the first heat exchange plate in winter to supply production equipment. At the same time, by switching the states of the first on-off structure and the second on-off structure, the air-conditioning cold water and return water can be heat exchanged through the second heat exchange plate, thereby solving the problem of condensation water generated in the production equipment due to the low supply cold water temperature.

[0025] like Figure 2 and Figure 3As shown, in one embodiment, a valve ten 5 and a filter 6 are provided on the second supply pipeline 4, a valve one 7 is provided on the second return water pipeline 8, the first on-off mechanism includes a first reserved port 11 and a second reserved port 15 provided on the second supply pipeline 4, the first reserved port 11 is connected with the second reserved port 15 through the second heat exchange plate, a valve nine 10 is provided on the first reserved port 11, a valve eight 14 is provided on the second reserved port 15, a valve seven 12 is provided on the second supply pipeline 4 between the first reserved port 11 and the second reserved port 15, one end of the second supply pipeline 4 is connected with the first supply pipeline 1, the other end of the second supply pipeline 4 is connected with the first connecting pipeline 9, the other end of the first connecting pipeline 9 is connected with the first connecting pipe 13 through the valve seven 12, The other end of the first connecting pipe 13 is connected to the production equipment; the second on-off mechanism includes a third reserved port 18 and a fourth reserved port 20 provided on the second water return pipeline 8, the third reserved port 18 is connected to the fourth reserved port 20 through the second heat exchange plate, the third reserved port 18 is provided with a valve four 17, the fourth reserved port 20 is provided with a valve three 21, and the second water return pipeline 8 is provided with a valve two 19 between the third reserved port 18 and the fourth reserved port 20; one end of the second water return pipeline 8 is connected to the first water return pipeline 3, the other end of the second water return pipeline 8 is connected to the second connecting pipeline 22, the other end of the second connecting pipeline 22 is connected to the second connecting pipe 16 through the valve two 19, and the other end of the second connecting pipe 16 is connected to the production equipment.

[0026] Specifically, the second supply pipeline 4 is led out from the first supply pipeline 1 on the air-conditioning box 2, and the second supply pipeline 4 is connected with a valve 10 5 and a filter 6 to control the opening and closing and impurity removal of the second supply pipeline 4. The second return water pipeline 8 is connected to the first return water pipeline 3, and the second return water pipeline 8 is connected with a valve 1 7 to control the opening and closing of the second return water pipeline 8; the valve 9 10 is used to control the opening and closing of the first reserved port 11, and the valve 8 14 is used to control the opening and closing of the second reserved port 15. When the valve 9 10 and the valve 8 14 are closed and the valve 7 12 is opened, the first on-off mechanism is in a connected state. When the valve 9 10 and the valve 8 14 are opened and the valve 7 12 is closed, the first on-off mechanism is in a partially disconnected state. When the valve 9 10, the valve 8 14 and the valve 7 12 are all closed, the first on-off mechanism is in a disconnected state; the valve 4 17 is used to Control the opening and closing of the third reserved port 18, and valve three 21 is used to control the opening and closing of the fourth reserved port 20; when valve four 17 and valve three 21 are closed, and valve two 19 is opened, the second on-off mechanism is in a connected state, when valve four 17 and valve three 21 are opened, and valve two 19 is closed, the second on-off structure is in a partially disconnected state, and when valve four 17, valve three 21, and valve two 19 are closed, the second on-off structure is in a disconnected state; the first reserved port 11, the second reserved port 15, the third reserved port 18, and the fourth reserved port 20 are used to install the second heat exchange plate, and the second heat exchange plate can be installed according to actual conditions. When the supplied water temperature is too low, the state of the first on-off structure and the second on-off structure can be adjusted, and the return water temperature can be used to heat the cold water to prevent the water temperature from being too low, resulting in condensation of the production equipment.

[0027] like Figure 4 and Figure 5 As shown, in one embodiment, the second supply pipeline 4 is connected to the production equipment through a cold water branch pipe group, the cold water branch pipe group is provided with a first ball valve group, and the second supply pipeline 4 is provided with a flow meter 23, a first temperature sensor 24, a pressure sensor 25 and a first vent valve 26 on one side of the cold water branch pipe group.

[0028] Specifically, the first connecting pipe 13 is connected to a flow meter 23, a first temperature sensor 24, a pressure sensor 25, and a first vent valve 26, which respectively play the role of counting the cold water flow of the pipeline, monitoring the temperature of the cold water supply main pipe, monitoring the pressure of the cold water supply main pipe, and exhausting excess air from the pipeline; optionally, the end of the first connecting pipe 13 is a cold water branch pipe group, which is divided into three branches, namely the first cold water branch pipe 27, the second cold water branch pipe 28, and the third cold water branch pipe 29. The first cold water branch pipe 27, the second cold water branch pipe 28, and the third cold water branch pipe 29 are respectively connected to the first ball valve 32, the second ball valve 31, and the third ball valve 30, that is, the first ball valve group, which supplies cold water to the corresponding production equipment through the cold water branch pipe group, and the opening and closing of the first ball valve group can realize two kinds of supply of cold water for the refrigeration machine of the corresponding production equipment or the process cold water equipment. Selection of method; the first temperature sensor 24 is used to monitor the cold water temperature and adjust the water supply temperature in time to prevent the cold water temperature from being too high or too low; the pressure sensor 25 is used to monitor the cold water pressure to prevent the cold water pressure from being too high and affecting the operation effect of the production equipment, and to prevent possible pipeline damage from causing cold water leakage and low pressure; the first vent valve 26 is used to exhaust the air in the pipeline during daily and maintenance trial operation to suppress the occurrence of water hammer; the first ball valve group can be opened and closed according to the actual production situation, so that any group can use the chiller for cooling or any group can use the air-conditioning cold water for cooling. This random combination method ensures the stability of production. No matter if there is a problem with the process chiller or the air-conditioning cold water, another method can be used to replace it in time.

[0029] In one embodiment, the second return water pipeline 8 is connected to the production equipment through a return water branch pipe group, and the return water branch pipe group is provided with a second ball valve group and a temperature sensor group. The second return water pipeline 8 is provided with a second vent valve 34 on one side of the return water branch pipe group.

[0030] Specifically, the second connecting pipe 16 is connected to a second vent valve 34 for discharging air in the pipe. The second connecting pipe 16 is provided with a return water branch pipe group at the front end. The return water branch pipe group is formed by a first return water branch pipe 33, a second return water branch pipe 35, and a third return water branch pipe 36. The first return water branch pipe 33, the second return water branch pipe 35, and the third return water branch pipe 36 are respectively connected to a fourth temperature sensor 41, a third temperature sensor 39, and a second temperature sensor 37 for monitoring the temperature of the return water. In addition, the first return water branch pipe 33, the second return water branch pipe 35, and the third return water branch pipe 36 are respectively connected to a fourth temperature sensor 41, a third temperature sensor 39, and a second temperature sensor 37 for monitoring the temperature of the return water. The branch pipe 35 and the third return water branch pipe 36 are respectively connected to the sixth ball valve 42, the fifth ball valve 40 and the fourth ball valve 38. The return water from the corresponding production equipment is collected to the return water main pipe through the return water branch pipe group, and the opening and closing of the second ball valve group can realize the selection of two return water modes of the refrigerator or the process cold water equipment of the corresponding production equipment; the temperature sensor group is used to monitor the temperature of the return water in real time. When the temperature is too high or too low, the operating temperature of the production equipment is controlled within a predetermined range by changing the flow rate, and the temperature is accurately controlled, thereby achieving energy saving and consumption reduction.

[0031] like Figure 6 As shown, in one embodiment, the process chiller includes a first chiller 43, a second chiller 44, a third chiller 45 and a fourth chiller 52, and the first chiller 43, the second chiller 44, the third chiller 45 and the fourth chiller 52 are all connected to the production equipment.

[0032] Specifically, the first chiller 43 is connected to a second water supply pipe 49, a second water replenishment pipe 50, and a second water return pipe 51. The second water supply pipe 49 is connected to the first group of water supply pipes 65, the second water return pipe 51 is connected to the first group of return pipes 64, and the second water replenishment pipe 50 is connected to the water replenishment main pipe 56. When the first chiller 43 has water loss, water is replenished through the water replenishment main pipe 56. The cold water produced by the first chiller 43 is transported to the production equipment through the second water supply pipe 49 and the first group of water supply pipes 65 for equipment cooling. After the cooling is completed, the return water is transported to the first chiller 43 through the first group of return pipes 64 and the second return pipe 51 for cooling again. Cooling; the second chiller 44 is connected to a first water supply pipe 46, a first water replenishment pipe 47, and a first water return pipe 48. The first water supply pipe 46 is connected to the second group of water supply pipes 63, the first water return pipe 48 is connected to the second group of return pipes 62, and the first water replenishment pipe 47 is connected to the water replenishment main pipe 56. When the second chiller 44 has water loss, water is replenished through the water replenishment main pipe 56. The cold water produced by the second chiller 44 is transported to the production equipment through the first water supply pipe 46 and the second group of water supply pipes 63 for equipment cooling and cooling. After cooling, the return water is transported to the second chiller 44 through the second group of return pipes 62 and the first return pipe 48 for cooling and cooling again. The third chiller 45 is connected to a third water supply pipe 55, a third water replenishment pipe 54, and a third water return pipe 53. The third water supply pipe 55 is connected to a third group of water supply pipes 61, the third water return pipe 53 is connected to a third group of return pipes 60, and the third water replenishment pipe 54 is connected to a water replenishment main pipe 56. When the third chiller 45 has water loss, water is replenished through the water replenishment main pipe 56. The cold water produced by the third chiller 45 is transported to the production equipment through the third water supply pipe 55 and the third group of water supply pipes 61 for equipment cooling and cooling. After cooling, the return water is transported to the third chiller 45 through the third group of return pipes 60 and the third return pipe 53 for cooling and cooling again. The fourth chiller 52 is connected with a fourth water supply pipe 57, a fourth water replenishment pipe 58, and a fourth water return pipe 59. The fourth water supply pipe 57 is respectively connected to the first water supply pipe 65, the second water supply pipe 63, and the third water supply pipe 61. The fourth water return pipe 59 is respectively connected to the first water return pipe 64, the second water return pipe 62, and the third water return pipe 60. The fourth water replenishment pipe 58 is connected to the water replenishment main pipe 56. When the fourth chiller 52 has water loss, water is replenished through the water replenishment main pipe 56. The fourth chiller 52 mainly serves as a standby unit. When the other chillers have problems, the fourth chiller 52 can be turned on and the corresponding valve can be opened to supply cooling.The process chiller has three functions and one backup. The first chiller 43 supplies the No. 1 production equipment through an independent pipeline, the second chiller 44 supplies the No. 2 production equipment through an independent pipeline, the third chiller 45 supplies the No. 3 production equipment through an independent pipeline, and the fourth chiller 52 is connected to the corresponding pipelines of other chillers through pipelines. The valves are used for control. When other chillers fail, the valves of the corresponding pipelines are opened to realize the supply of cold water. ;

[0033] The present application solves the problem that placing a chiller at the silk-making main production site results in direct heat dissipation inside the workshop during its operation, causing additional refrigeration consumption for the air-conditioning system. It also solves the problem of noise during on-site operation of the chiller and improves the working environment at the production site. In addition, if a refrigeration machine is used for a long time to supply cold water, the use and maintenance cost of the chiller can be reduced. In addition, the high-efficiency refrigeration method of the chiller replaces the inefficient supply method of the chiller, which can further reduce energy consumption under high load of the chiller. Since a refrigeration unit often has multiple refrigeration equipment, the method of supplying cold water with a chiller increases the stability of the cold water supply. At the same time, a second heat exchange plate is added to the pipeline that the chiller supplies the production equipment, and the supply cold water is heated by the temperature of the return water, which can prevent the condensation of the production equipment caused by the low supply temperature of the cold water, and further ensure the stability of the cooling. The cooling of the chiller and the process cold water equipment can be switched at will through a combination method. When one of the equipment fails or is inefficient, it is switched to the other equipment to provide cooling. High equipment stability; this method can also be applied to other production equipment that requires cold water supply. The nearest air-conditioning cold water will replace the chiller to produce cold water and supply it to the corresponding production equipment, which will further ensure the stability of cold water supply, improve the utilization rate of the refrigeration unit, avoid adding new chillers, and reduce investment and later maintenance work; by combining air-conditioning cold water and process cold water, the supply method can be switched at any time to ensure the cold water supply of the impurity remover; using the air-conditioning cold water near the process cold water equipment for cooling can save the cost of purchasing process cold water equipment; supplying multiple production equipment with cooling needs through the large flow of cold water from the air-conditioning unit greatly improves the equipment efficiency; from the original form of one process cold water unit producing cold water to supply one production equipment, to the form of air-conditioning chilled water supplying multiple production equipment, at the same time, through the form of branch valve combination, when the refrigerator is out of use or the load is low, the chiller can be used for cooling. When one of the chillers has a problem, the corresponding chiller can be switched to the refrigerator for cooling, which greatly ensures the stability of production.

[0034] Embodiment 2:

[0035] The present invention provides a refrigeration system for production equipment, based on the refrigeration device for production equipment described in Example 1, including an air-conditioning box 2 and a process cooling water device, one end of the production equipment and one end of the process cooling water device are both connected to one end of a first on-off mechanism, the other end of the production equipment and the other end of the process cooling water device are both connected to one end of a second on-off mechanism, one end of the air-conditioning box 2 and the other end of the first on-off mechanism are both connected to one end of a refrigerator and one end of a first heat exchange plate, the other end of the refrigerator and the other end of the first heat exchange plate are both connected to the other end of the air-conditioning box 2 and the other end of the second on-off mechanism, the first on-off mechanism and the second on-off mechanism are connected to the same second heat exchange plate, the production equipment is provided with an electric valve and a temperature detector, and the electric valve and the temperature detector are both electrically connected to a PLC.

[0036] like Figure 7 As shown in the figure, valve 1 is valve one 7, valve 2 is valve two 19, valve 3 is valve three 21, valve 4 is valve four 17, valve 7 is valve seven 12, valve 8 is valve 814, valve 9 is valve nine 10, valve 10 is valve ten 5, the cold plate is the first heat exchange plate, and (cold plate) is the second heat exchange plate; optionally, the process cold water equipment is connected to the production equipment through valve 5 and valve 6, and the process cold water equipment can be closed or started by closing or opening valve 5 and valve 6.

[0037] Specifically, when the process cooling water equipment is not in use, close valve 5 and valve 6, open valve 1, valve 2, valve 7, and valve 10, and use air-conditioning cooling water to supply the production equipment; when the air-conditioning cooling water is not in use to supply the production equipment, open valve 5 and valve 6, close valve 1, valve 2, valve 3, valve 4, valve 7, valve 8, valve 9, and valve 10, and use process cooling water equipment for cooling; when the water temperature of the air-conditioning cooling water supplying the production equipment is too low, open valve 3, valve 4, valve 8, and valve 9, close valve 2 and valve 7, and operate the second heat exchange plate. In addition, an electric valve is installed on the pipeline inside the production equipment, and the internal operating temperature of the equipment is monitored by a temperature detector, and the numerical value is fed back to the PLC programmable logic controller, and the opening of the electric valve is controlled by the PLC to prevent condensation inside the equipment.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A refrigeration device for production equipment, characterized in that: The invention comprises an air conditioning box (2), a refrigerator and a first heat exchange plate, wherein the outer wall of the air conditioning box (2) is provided with a first supply pipeline (1) and a first water return pipeline (3), the refrigerator and the first heat exchange plate are both in communication with the first supply pipeline (1) and the first water return pipeline (3), the first supply pipeline (1) and the production equipment are in communication with each other via a second supply pipeline (4), and the first water return pipeline (3) and the production equipment are in communication with each other via a second water return pipeline (8); The production equipment is connected to a process cooling water device, the second supply pipeline (4) is provided with a first on-off mechanism, the second return water pipeline (8) is provided with a second on-off mechanism, and the first on-off mechanism and the second on-off mechanism are connected to the same second heat exchange plate.

2. The refrigeration device for production equipment according to claim 1, characterized in that: The second supply pipeline (4) is provided with a valve ten (5) and a filter (6), and the second return pipeline (8) is provided with a valve one (7).

3. The refrigeration device for production equipment according to claim 1, characterized in that: The first on-off mechanism comprises a first reserved port (11) and a second reserved port (15) provided on the second supply pipeline (4); the first reserved port (11) is connected to the second reserved port (15) via the second heat exchange plate; a valve nine (10) is provided on the first reserved port (11); a valve eight (14) is provided on the second reserved port (15); and a valve seven (12) is provided on the second supply pipeline (4) between the first reserved port (11) and the second reserved port (15).

4. The refrigeration device for production equipment according to claim 3, characterized in that: One end of the second supply pipeline (4) is connected to the first supply pipeline (1), the other end of the second supply pipeline (4) is connected to the first connecting pipeline (9), the other end of the first connecting pipeline (9) is connected to the first connecting pipe (13) through the valve seven (12), and the other end of the first connecting pipe (13) is connected to the production equipment.

5. The refrigeration device for production equipment according to claim 1, characterized in that: The second on-off mechanism comprises a third reserved opening (18) and a fourth reserved opening (20) provided on the second water return pipeline (8); the third reserved opening (18) is connected to the fourth reserved opening (20) via the second heat exchange plate; a fourth valve (17) is provided on the third reserved opening (18); a third valve (21) is provided on the fourth reserved opening (20); and a second valve (19) is provided on the second water return pipeline (8) between the third reserved opening (18) and the fourth reserved opening (20).

6. The refrigeration device for production equipment according to claim 5, characterized in that: One end of the second water return pipeline (8) is connected to the first water return pipeline (3), the other end of the second water return pipeline (8) is connected to the second connecting pipeline (22), the other end of the second connecting pipeline (22) is connected to the second connecting pipe (16) through the second valve (19), and the other end of the second connecting pipe (16) is connected to the production equipment.

7. The refrigeration device for production equipment according to claim 1, characterized in that: The second supply pipeline (4) is connected to the production equipment via a cold water branch pipe group, and a first ball valve group is provided on the cold water branch pipe group. A flow meter (23), a first temperature sensor (24), a pressure sensor (25) and a first vent valve (26) are provided in sequence on the second supply pipeline (4) on one side of the cold water branch pipe group.

8. The refrigeration device for production equipment according to claim 1, characterized in that: The second water return pipeline (8) is connected to the production equipment via a water return branch pipe group, the water return branch pipe group is provided with a second ball valve group and a temperature sensor group, and the second water return pipeline (8) is provided with a second vent valve (34) on one side of the water return branch pipe group.

9. The refrigeration device for production equipment according to claim 1, characterized in that: The process chilled water equipment comprises a first chilled water unit (43), a second chilled water unit (44), a third chilled water unit (45) and a fourth chilled water unit (52); the first chilled water unit (43), the second chilled water unit (44), the third chilled water unit (45) and the fourth chilled water unit (52) are all connected to the production equipment.

10. A refrigeration system for production equipment, based on the refrigeration device for production equipment according to any one of claims 1 to 9, characterized in that: It comprises an air-conditioning box (2) and a process cooling water device, one end of the production equipment and one end of the process cooling water device are both connected to one end of a first on-off mechanism, the other end of the production equipment and the other end of the process cooling water device are both connected to one end of a second on-off mechanism, one end of the air-conditioning box (2) and the other end of the first on-off mechanism are both connected to one end of a refrigerator and one end of a first heat exchange plate, the other end of the refrigerator and the other end of the first heat exchange plate are both connected to the other end of the air-conditioning box (2) and the other end of the second on-off mechanism, the first on-off mechanism and the second on-off mechanism are connected to the same second heat exchange plate, the production equipment is provided with an electric valve and a temperature detector, the electric valve and the temperature detector are both electrically connected to a PLC.

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