Energy-saving system with water cooling tower and water chiller unit in parallel operation

Abstract

The utility model discloses an energy -conserving system of parallel operation of cooling tower and cold water set, including cooling liquid storage tank, cooling assembly, intercommunication component, adjusting assembly, control assembly and be cooled equipment, and cooling assembly includes cooling tower and cooling set, and cooling tower and cooling set set up at the water outlet of cooling liquid storage tank, intercommunication component sets up between cooling liquid storage tank and cooling assembly, adjusting assembly sets up at the outside of intercommunication component, and control assembly sets up at the input of cooling assembly and adjusting assembly, and control assembly is used for the control of cooling assembly and adjusting assembly. The utility model discloses utilize cooling assembly, intercommunication component and the design of adjusting assembly, when the environment temperature is lower, and the cooling capacity of cooling tower can satisfy the technological demand, and the cooling set keeps closing, and only cooling tower works, when the environment temperature is higher or the technological demand changes sharply, switches to the cooling set independent operation mode, to realize the effect of reducing the electric energy consumption.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical equipment technical field, especially relate to a cooling tower and water chilling unit parallel operation's energy -conserving system. BACKGROUND

[0002] In industrial production, cooling equipment is used to maintain the stability of production process, and common cooling methods include water chilling unit and cooling tower.

[0003] The water chilling unit has powerful refrigeration capacity, but the power consumption is high, and the cooling tower is cooled by heat exchange between air and water, and the energy consumption is relatively low compared with the water chilling unit, but it is greatly limited by environmental conditions, and in the traditional chemical production system, the water chilling unit or the cooling tower is usually used alone for cooling operation, and cannot be dynamically adjusted according to actual demand, especially in the case of low ambient temperature, the water chilling unit still runs for a long time, resulting in high energy consumption all the time and consuming a large amount of energy. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a cooling tower and water chilling unit parallel operation's energy -conserving system to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a cooling tower and water chilling unit parallel operation's energy -conserving system, comprising:

[0006] Cooling liquid storage tank;

[0007] Cooling assembly, the cooling assembly includes a cooling tower and a cooling unit, the cooling tower and the cooling unit are arranged at the water outlet end of the cooling liquid storage tank, and the cooling tower and the cooling unit are used for cooling the cooling water of the cooling liquid storage tank;

[0008] Communication component, the communication component is arranged between the cooling liquid storage tank and the cooling assembly, and the communication component is used for connecting the cooling liquid storage tank and the cooling assembly;

[0009] Adjusting component, the adjusting component is arranged outside the communication component;

[0010] Control component, the control component is arranged at the input end of the cooling assembly and the adjusting component, and the control component is used for controlling the cooling assembly and the adjusting component;

[0011] The cooled equipment is connected with the cooling liquid storage tank in series.

[0012] Preferably, the communication component comprises:

[0013] First water outlet pipe, one end of the first water outlet pipe is connected with the water outlet end of the cooling liquid storage tank in penetration;

[0014] A first water inlet pipe, one end of the first water inlet pipe is connected with the water inlet end of the cooling liquid storage tank in a through manner;

[0015] A first branch pipe, one end of the first branch pipe is used for communicating with the first water outlet pipe, and the other end of the first branch pipe is connected with one end of the cold water tower in a through manner;

[0016] A second branch pipe, one end of the second branch pipe is used for communicating with the first water outlet pipe, and the other end of the second branch pipe is connected with one end of the cooling unit in a through manner;

[0017] A third branch pipe, one end of the third branch pipe is connected with the other end of the cold water tower in a through manner, and the other end of the third branch pipe is used for communicating with the first water inlet pipe;

[0018] A fourth branch pipe, one end of the fourth branch pipe is connected with the other end of the cooling unit in a through manner, and the other end of the fourth branch pipe is used for communicating with the first water inlet pipe.

[0019] Preferably, the adjusting assembly comprises:

[0020] A first electromagnetic valve, a first interface of the first electromagnetic valve is connected with the other end of the first water outlet pipe in a through manner, and a second interface and a third interface of the first electromagnetic valve are connected with one end of the first branch pipe and one end of the second branch pipe in a through manner respectively;

[0021] A second electromagnetic valve, a fourth interface of the second electromagnetic valve is connected with the other end of the first water inlet pipe in a through manner, and a fifth interface and a sixth interface of the second electromagnetic valve are connected with the other end of the third branch pipe and the other end of the fourth branch pipe in a through manner respectively.

[0022] Preferably, the cold water tower and the cooling unit are arranged in parallel, the cooling liquid storage tank and the cooling assembly are arranged in series, and outer walls of the first water inlet pipe are sleeved with a first pump body and a first cut-off valve respectively.

[0023] Preferably, the control assembly comprises:

[0024] A controller, input ends of the controller are electrically connected with output ends of the adjusting assembly and the cooling assembly;

[0025] A thermometer, an output end of the thermometer is electrically connected with an input end of the controller, and the thermometer is used for monitoring an external temperature;

[0026] A mounting box, the mounting box is sleeved outside the controller and the thermometer, and the mounting box is used for mounting the controller and the thermometer.

[0027] Preferably, back surfaces of the controller and the thermometer are fixedly connected with an inner wall of the mounting box.

[0028] Preferably, the cooling device and the cooling liquid storage tank are provided with a series assembly.

[0029] Preferably, the series assembly comprises:

[0030] A second water outlet pipe, two ends of the second water outlet pipe are respectively connected with an output end of the cooling liquid storage tank and an input end of the cooling device in a through manner;

[0031] A second water inlet pipe, two ends of the second water inlet pipe are respectively connected with an input end of the cooling liquid storage tank and an output end of the cooling device in a through manner;

[0032] A second pump body and a second cut-off valve, the second pump body and the second cut-off valve are sleeved on the outer wall of the second water outlet pipe.

[0033] The technical effects and advantages of the present application are as follows:

[0034] The present application utilizes the design of the cooling assembly, the communication assembly and the adjusting assembly, when the ambient temperature is low and the cooling capacity of the cooling tower can meet the process requirement, the cooling unit remains closed, only the cooling tower works, when the ambient temperature is high or the process requirement changes sharply, the cooling unit is switched to the independent operation mode, so that the effect of reducing the power consumption is realized. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 The present application is a connection principle schematic diagram.

[0036] In the figure: 1, cooling liquid storage tank; 2, cooling tower; 3, cooling unit; 4, first electromagnetic valve; 5, second electromagnetic valve; 6, control assembly; 61, controller; 62, thermometer; 63, mounting box; 7, communication assembly; 71, first water outlet pipe; 72, first branch pipe; 73, second branch pipe; 74, third branch pipe; 75, fourth branch pipe; 76, first water inlet pipe; 77, first pump body; 78, first cut-off valve; 8, cooling device; 9, series assembly; 91, second water outlet pipe; 92, second water inlet pipe; 93, second pump body; 94, second cut-off valve. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] In a first embodiment, the present application provides a cooling device as shown in Figure 1The energy-saving system shown in the cooling tower and the water chiller parallel operation, comprising:

[0039] Cooling liquid storage tank 1;

[0040] Cooling assembly, cooling assembly includes cooling tower 2 and cooling unit 3, cooling tower 2 and cooling unit 3 are arranged in the water outlet end of cooling liquid storage tank 1, cooling tower 2 and cooling unit 3 are used for cooling water cooling of cooling liquid storage tank 1 cooling;

[0041] Communication components 7, communication components 7 are arranged between cooling liquid storage tank 1 and cooling assembly, and communication components 7 are used for connecting cooling liquid storage tank 1 and cooling assembly;

[0042] Adjusting assembly, adjusting assembly is arranged outside the communication components 7;

[0043] Control assembly 6, control assembly 6 is arranged in the input end of cooling assembly and adjusting assembly, control assembly 6 is used for controlling cooling assembly and adjusting assembly;

[0044] The cooled equipment 8, the cooled equipment 8 is connected with the cooling liquid storage tank 1.

[0045] Communication components 7 include:

[0046] First water outlet pipe 71, one end of first water outlet pipe 71 is connected with the water outlet end of cooling liquid storage tank 1;

[0047] First water inlet pipe 76, one end of first water inlet pipe 76 is connected with the water inlet end of cooling liquid storage tank 1;

[0048] First branch pipe 72, one end of first branch pipe 72 is used for communicating with first water outlet pipe 71, and the other end of first branch pipe 72 is connected with one end of cooling tower 2;

[0049] Second branch pipe 73, one end of second branch pipe 73 is used for communicating with first water outlet pipe 71, and the other end of second branch pipe 73 is connected with one end of cooling unit 3;

[0050] Third branch pipe 74, one end of third branch pipe 74 is connected with the other end of cooling tower 2, and the other end of third branch pipe 74 is used for communicating with first water inlet pipe 76;

[0051] Fourth branch pipe 75, one end of fourth branch pipe 75 is connected with the other end of cooling unit 3, and the other end of fourth branch pipe 75 is used for communicating with first water inlet pipe 76.

[0052] Cooling tower 2 and cooling unit 3 are arranged in parallel, cooling liquid storage tank 1 is arranged with cooling assembly, and the outer wall of first water inlet pipe 76 is respectively sleeved with first pump body 77 and first cut-off valve 78.

[0053] The adjusting assembly comprises:

[0054] The first electromagnetic valve 4 is connected with the other end of the first water outlet pipe 71 through the first interface, and the second interface and the third interface of the first electromagnetic valve 4 are connected with one end of the first branch pipe 72 and one end of the second branch pipe 73 respectively;

[0055] The second electromagnetic valve 5 is connected with the other end of the first water inlet pipe 76 through the fourth interface, and the fifth interface and the sixth interface of the second electromagnetic valve 5 are connected with the other end of the third branch pipe 74 and the other end of the fourth branch pipe 75 respectively.

[0056] Further, the cooling liquid storage tank 1 is a DBNL3-40T circular counter-flow type cooling tower, the cooling unit 3 is a GXF one 50AF air-cooled cooling water unit, the first electromagnetic valve 4 and the second electromagnetic valve 5 are both WZY two-position three-way electromagnetic valves, the cooling water flowing out of the cooling liquid storage tank 1 flows through the first water outlet pipe 71, flows to the first electromagnetic valve 4, and is guided by the first electromagnetic valve 4 to determine the flow direction to the cooling tower 2 or the cooling unit 3, the first electromagnetic valve 4 flows to the cooling tower 2 through the first branch pipe 72, the first electromagnetic valve 4 flows to the cooling unit 3 through the second branch pipe 73, the cooling liquid treated by the cooling tower 2 flows to the second electromagnetic valve 5 through the third branch pipe 74, and then flows to the first water inlet pipe 76 through the second electromagnetic valve 5, the cooling liquid treated by the cooling unit 3 flows to the second electromagnetic valve 5 through the fourth branch pipe 75, and then flows to the first water inlet pipe 76 through the second electromagnetic valve 5, thereby forming the parallel connection of the cooling tower 2 and the cooling unit 3, the series connection of the cooling liquid storage tank 1 and the cooling assembly, the first pump body 77 is used for providing power for the delivery of the cooling liquid, and the first cut-off valve 78 is used for manually controlling the flow of the liquid in the first water inlet pipe 76.

[0057] The second embodiment provides an energy-saving system as shown in Figure 1 The energy-saving system comprises:

[0058] The cooling liquid storage tank 1;

[0059] The cooling assembly comprises the cooling tower 2 and the cooling unit 3, the cooling tower 2 and the cooling unit 3 are arranged at the water outlet end of the cooling liquid storage tank 1, and the cooling tower 2 and the cooling unit 3 are used for cooling the cooling water of the cooling liquid storage tank 1;

[0060] The communication assembly 7 is arranged between the cooling liquid storage tank 1 and the cooling assembly, and is used for communicating the cooling liquid storage tank 1 and the cooling assembly;

[0061] The adjusting assembly is arranged outside the communication assembly 7;

[0062] A control assembly 6 is arranged at the input end of the cooling assembly and the adjusting assembly, and is used for controlling the cooling assembly and the adjusting assembly.

[0063] A cooled device 8 is connected in series with the cooling liquid storage tank 1.

[0064] The control assembly 6 comprises:

[0065] A controller 61, of which the input end is electrically connected with the output end of the adjusting assembly and the cooling assembly;

[0066] A thermometer 62, of which the output end is electrically connected with the input end of the controller 61, and which is used for monitoring the outside temperature;

[0067] A mounting box 63, which is sleeved outside the controller 61 and the thermometer 62, and is used for mounting the controller 61 and the thermometer 62.

[0068] The back surface of the controller 61 and the back surface of the thermometer 62 are fixedly connected with the inner wall of the mounting box 63.

[0069] Further, the controller 61 is a conventional PLC controller, and the thermometer 62 is a conventional DT-1 electronic thermometer, the controller 61 and the thermometer 62 are fixedly connected with the mounting box 63 through bolts, the mounting box 63 is a rectangular metal box, the thermometer 62 monitors the external temperature and transmits the temperature value to the controller 61 in real time, the controller 61 is internally provided with a temperature threshold, the temperature value transmitted by the thermometer 62 is continuously compared with the temperature threshold, when the temperature value is higher than or equal to the temperature threshold, the controller 61 outputs signals to the cooling tower 2, the cooling unit 3, the first electromagnetic valve 4 and the second electromagnetic valve 5 respectively, controls the cooling unit 3 to start and process the cooling water, and the cooling tower 2 stops working, at the same time, the cooling water flowing through the first outflow pipe 71 flows to the second branch pipe 73 through the first electromagnetic valve 4 and does not flow to the first branch pipe 72, and the cooling water output by the cooling unit 3 flows to the first inflow pipe 76 through the second electromagnetic valve 5 and does not flow to the third branch pipe 74, when the temperature value is lower than the temperature threshold, the controller 61 outputs signals to the cooling tower 2, the cooling unit 3, the first electromagnetic valve 4 and the second electromagnetic valve 5 respectively, controls the cooling tower 2 to start and process the cooling water, and the cooling unit 3 stops working, at the same time, the cooling water flowing through the first outflow pipe 71 flows to the first branch pipe 72 through the first electromagnetic valve 4 and does not flow to the second branch pipe 73, and the cooling water output by the cooling tower 2 flows to the first inflow pipe 76 through the second electromagnetic valve 5 and does not flow to the fourth branch pipe 75, at the same time, the first electromagnetic valve 4 and the second electromagnetic valve 5 can also be manually controlled through the controller 61, so as to realize the following effects: 1, high efficiency and energy saving: preferentially using the natural cooling capacity of the cooling tower 2 to reduce the running time of the cooling unit 3, 2, cost reduction: reducing power consumption and reducing equipment operation and maintenance costs, 3, strong environmental protection: reducing energy consumption and carbon emissions, which is helpful to achieve the green production goal.

[0070] The series assembly 9 is arranged between the cooling liquid storage tank 1 and the cooled equipment 8.

[0071] The series assembly 9 comprises:

[0072] The second outflow pipe 91 is connected with the output end of the cooling liquid storage tank 1 and the input end of the cooled equipment 8 through the two ends of the second outflow pipe 91;

[0073] The second inflow pipe 92 is connected with the input end of the cooling liquid storage tank 1 and the output end of the cooled equipment 8 through the two ends of the second inflow pipe 92;

[0074] The second pump body 93 and the second cut-off valve 94 are sleeved on the outer wall of the second outflow pipe 91.

[0075] Further, the cooled equipment 8 is connected with the cooling liquid storage tank 1 through the second water outlet pipe 91 and the second water inlet pipe 92, so as to circulate and transport the cooling liquid, the second pump body 93 is used for providing the flow power of the cooling liquid, transporting the cooling liquid from the cooling liquid storage tank 1 to the cooled equipment 8, and finally flowing back to the cooling liquid storage tank 1 through the second water inlet pipe 92, and the second cut-off valve 94 is used for manually controlling the flow of the liquid in the second water outlet pipe 91.

[0076] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application has been made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc., within the spirit and principles of the present application, should be included within the scope of the present application.

Claims

1. An energy-saving system for parallel operation of a cooling tower and a chiller unit, characterized in that, include: Coolant storage tank (1); The cooling assembly includes a cooling tower (2) and a cooling unit (3), which are located at the outlet of the coolant storage tank (1) and are used to cool the cooling water in the coolant storage tank (1). A connecting component (7) is disposed between the coolant storage tank (1) and the cooling component, and the connecting component (7) is used to connect the coolant storage tank (1) and the cooling component; An adjustment component is disposed outside the connecting component (7); A control component (6) is disposed at the input end of the cooling component and the regulating component, and the control component (6) is used to control the cooling component and the regulating component; The cooled device (8) is connected in series with the coolant storage tank (1).

2. The energy-saving system for parallel operation of a cooling tower and a chiller unit according to claim 1, characterized in that, The connectivity component (7) includes: The first water outlet pipe (71) has one end connected to the water outlet of the coolant storage tank (1). The first water inlet pipe (76) has one end connected to the water inlet of the coolant storage tank (1); The first branch pipe (72) has one end connected to the first outlet pipe (71) and the other end connected to one end of the cooling tower (2). The second branch pipe (73) has one end connected to the first outlet pipe (71) and the other end connected to one end of the cooling unit (3). The third branch pipe (74) has one end connected to the other end of the cooling tower (2), and the other end of the third branch pipe (74) is used to connect with the first inlet pipe (76); The fourth branch pipe (75) has one end connected to the other end of the cooling unit (3), and the other end of the fourth branch pipe (75) is used to connect with the first water inlet pipe (76).

3. The energy-saving system for parallel operation of a cooling tower and a chiller unit according to claim 2, characterized in that, The adjustment component includes: The first solenoid valve (4) has its first interface connected to the other end of the first outlet pipe (71), and its second and third interfaces are connected to one end of the first branch pipe (72) and one end of the second branch pipe (73), respectively. The second solenoid valve (5) has its fourth port connected to the other end of the first water inlet pipe (76), and its fifth and sixth ports are connected to the other ends of the third branch pipe (74) and the fourth branch pipe (75), respectively.

4. The energy-saving system for parallel operation of a cooling tower and a chiller unit according to claim 3, characterized in that, The cooling tower (2) and the cooling unit (3) are connected in parallel, the coolant storage tank (1) is connected in series with the cooling components, and the outer wall of the first water inlet pipe (76) is fitted with a first pump body (77) and a first shut-off valve (78).

5. The energy-saving system for parallel operation of a cooling tower and a chiller unit according to claim 1, characterized in that, The control component (6) includes: A controller (61), the input of which is electrically connected to the output of the regulating component and the cooling component; The thermometer (62) is electrically connected to the input terminal of the controller (61) and is used for monitoring the external temperature. Mounting box (63), which is fitted over the controller (61) and thermometer (62), is used for mounting the controller (61) and thermometer (62).

6. The energy-saving system for parallel operation of a cooling tower and a chiller unit according to claim 5, characterized in that, The back of both the controller (61) and the thermometer (62) are fixedly connected to the inner wall of the mounting box (63).

7. The energy-saving system for parallel operation of a cooling tower and a chiller unit according to claim 1, characterized in that, A series assembly (9) is provided between the cooled equipment (8) and the coolant storage tank (1).

8. The energy-saving system for parallel operation of a cooling tower and a chiller unit according to claim 7, characterized in that, The series assembly (9) includes: The second water outlet pipe (91) has two ends connected to the output end of the coolant storage tank (1) and the input end of the cooled equipment (8), respectively. The second water inlet pipe (92) has two ends connected to the input end of the coolant storage tank (1) and the output end of the cooled equipment (8), respectively. The second pump body (93) and the second shut-off valve (94) are both fitted onto the outer wall of the second outlet pipe (91).

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