Novel winter cooling water tower water temperature heating device

Abstract

The utility model relates to the technical field of circulating water cooling devices, in particular to a novel winter cooling water tower water temperature heating device which comprises a water chilling unit and a compressor, one end of the compressor is provided with a circulating pipeline, one end of the circulating pipeline is in butt joint with the other end of the compressor, and one side of the compressor is connected with a cooling water tower through a pipeline. A water inlet pipe is arranged on one side of the water chilling unit, an electronic temperature sensor is arranged on the outer side of the top of the water inlet pipe, and the bottom of the electronic temperature sensor is arranged in an inner cavity of the water inlet pipe. And after the water temperature rises, ice water in the cooling machine enters the pipeline by controlling the three-way valve and is mixed with the heated water to form large circulation, so that the water temperature is neutralized, the cooling-water machine is prevented from sucking low-temperature water in the cooling water tower, and normal operation of the magnetic suspension cooling-water machine in winter is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating water cooling and temperature reduction devices, in particular to a novel water temperature heating device for a cooling water tower in winter. Background Art

[0002] Large air conditioning systems are important equipment that are indispensable for all kinds of factories. Large air conditioning systems include chillers and cooling towers. The cooling water of the chillers is cooled by the cooling towers, and the cooled cooling water is then transported to the chillers by the cooling towers for cooling.

[0003] In order to improve refrigeration efficiency, some companies have adopted suspended water chillers, while centrifugal chillers have adopted magnetic levitation technology, which reduces mechanical losses and makes refrigeration operation more efficient and energy-saving. However, the inventors have found that magnetic levitation water chillers have certain defects. Since the temperature of the outdoor cooling tower is close to 0 degrees in winter, the water chiller draws low-temperature water from the cooling tower. The water temperature cannot rise after running for ten minutes, resulting in the outdoor low-temperature magnetic levitation water chiller being unable to operate normally. Utility Model Content

[0004] The purpose of the utility model is to provide a novel water temperature heating device for a cooling water tower in winter to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel device for heating the water temperature of a cooling water tower in winter comprises a chiller and a compressor, wherein a circulation pipeline is arranged at one end of the compressor, and one end of the circulation pipeline is butted with the other end of the compressor, and one side of the compressor is connected with a cooling water tower through a pipeline, and a water inlet pipe is arranged at one side of the chiller, and an electronic temperature sensor is arranged on the top outer side of the water inlet pipe, and the bottom of the electronic temperature sensor is arranged in the inner cavity of the water inlet pipe, and a water outlet pipe connected with the circulation pipeline is also arranged on one side of the chiller, and a three-way valve butted with the water inlet pipe is arranged on the outer side of the circulation pipeline, and a PLC controller is arranged on the top outer wall of the circulation pipeline on one side of the three-way valve, and a heater is also arranged on the outside of the water inlet pipe.

[0007] Preferably, the three-way valve includes a valve body, a servo motor is fixedly mounted on the top of the valve body, a valve ball is provided at the output end of the servo motor, the valve ball is movably connected to the inner cavity of the valve body, a first connecting hole is provided on one side of the valve ball, a second connecting hole is provided on the other side of the valve ball, an interconnecting structure is formed between the first connecting hole and the second connecting hole, a first connecting pipe and a second connecting pipe are respectively provided at both ends of the valve body, one side of the valve body is butt-jointed with one end of a water inlet pipe, and one end of the water inlet pipe and one end of the first connecting pipe and the second connecting pipe form an angle of ninety degrees to each other.

[0008] Preferably, the inner cavity of the water inlet pipe is located at one end of the heater and is provided with a flow control valve, the flow control valve includes a stepper motor, and the stepper motor is fixedly installed on the top outer side of the circulation pipeline, the output end of the stepper motor is fixedly connected to the driving shaft, one end of the driving shaft is fixedly connected to the main bevel gear, the inner wall of the circulation pipeline is fixedly installed with a mounting sleeve, one side of the inner wall of the mounting sleeve is fixedly connected to a fixed plate, the other side of the inner wall of the mounting sleeve is movably connected to a movable plate, one side of the movable plate is fixedly connected to a secondary bevel gear, the outer edge of the secondary bevel gear is meshed with the outer edge of the main bevel gear, and the surfaces of the fixed plate and the movable plate are provided with flow openings that pass through them.

[0009] Preferably, the circulation pipeline also includes an elbow, which is located at the corner of the circulation pipeline and is connected to the first connecting pipe through a connecting seat and a connecting rod. The outer side of the connecting rod is provided with a spiral pattern, and the surface of the connecting seat is provided with a spiral hole that is compatible with the spiral pattern on the outer side of the connecting rod.

[0010] Preferably, the PLC controller is electrically connected to the heater via a wire, the PLC controller is electrically connected to the stepper motor and the servo motor via a relay and a contactor respectively, and the PLC controller is electrically connected to the electronic temperature sensor via a wire.

[0011] Preferably, the outer side of the valve ball is transitionally matched with the inner cavity of the valve body.

[0012] Preferably, the inner wall of the mounting sleeve is interference fit with the outer side of the fixed plate, the inner wall of the mounting sleeve is transition fit with the outer side of the movable plate, and the mounting sleeve is transition fit with the corresponding surface of the fixed plate.

[0013] Preferably, the outer side of the valve ball and the outer sides of the main bevel gear and the auxiliary bevel gear are all coated with galvanized material.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model, when the water temperature in the cooling tower is too low, absorbs the water in the pipeline through the chiller, realizes a small circulation through the three-way valve and continuously heats the water until the water temperature rises. Then, the ice water in the cooler enters the pipeline by controlling the three-way valve and mixes with the heated water to form a large circulation, so that the water temperature is neutralized, and the chiller is prevented from sucking in low-temperature water in the cooling tower, thereby ensuring the normal operation of the magnetic levitation chiller in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the local structure of the utility model;

[0017] Figure 2 It is the overall structural plan of the utility model;

[0018] Figure 3 For this utility model Figure 1 Exploded diagram of the overall structure of the central control flow valve;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of local connection of the medium circulation pipeline;

[0020] Figure 5 For this utility model Figure 1 Exploded diagram of the overall structure of the three-way valve;

[0021] In the figure: 1. chiller; 2. compressor; 3. circulation pipeline; 4. water inlet pipe; 5. three-way valve; 6. electronic temperature sensor; 7. PLC controller; 8. heater; 9. flow control valve; 10. water outlet pipe; 31. first connecting pipe; 32. second connecting pipe; 33. elbow; 34. connecting seat; 35. connecting rod; 51. valve body; 52. servo motor; 53. valve ball; 54. first connecting hole; 55. second connecting hole; 91. stepper motor; 92. drive shaft; 93. main bevel gear; 94. mounting sleeve; 95. fixed plate; 96. movable plate; 97. flow port; 98. secondary bevel gear. DETAILED DESCRIPTION

[0022] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0023] See also Figure 1-5 , the utility model provides a technical solution:

[0024] A novel device for heating the water temperature of a cooling water tower in winter comprises a chiller 1 and a compressor 2, characterized in that: a circulation pipeline 3 is provided at one end of the compressor 2, one end of the circulation pipeline 3 is butt-jointed with the other end of the compressor 2, one side of the compressor 2 is connected to a cooling water tower (not shown in the figure) through a pipeline, a water inlet pipe 4 is provided at one side of the chiller 1, an electronic temperature sensor 6 is provided on the top outer side of the water inlet pipe 4, and the bottom of the electronic temperature sensor 6 is provided in the inner cavity of the water inlet pipe 4, a water outlet pipe 10 connected to the circulation pipeline 3 is also provided at one side of the chiller 1, a three-way valve 5 butt-jointed with the water inlet pipe 4 is provided on the outer side of the circulation pipeline 3, a PLC controller 7 is provided on the top outer wall of the circulation pipeline 3 located on one side of the three-way valve 5, and a heater 8 is also provided on the outer side of the water inlet pipe 4.

[0025] In this embodiment, please refer to Figure 5The three-way valve 5 includes a valve body 51, a servo motor 52 is fixedly installed on the top of the valve body 51, a valve ball 53 is provided at the output end of the servo motor 52, the valve ball 53 is movably connected to the inner cavity of the valve body 51, a first connecting hole 54 is provided on one side of the valve ball 53, and a second connecting hole 55 is provided on the other side of the valve ball 53, and an intercommunication structure is formed between the first connecting hole 54 and the second connecting hole 55, and a first connecting pipe 31 and a second connecting pipe 32 are provided at both ends of the valve body 51, one side of the valve body 51 is connected to one end of the water inlet pipe 4, and one end of the water inlet pipe 4 and one end of the first connecting pipe 31 and the second connecting pipe 32 form an angle of ninety degrees with each other. In this embodiment, the servo motor 52 drives the valve ball 53 to rotate to switch the water inlet pipe 4 to communicate with the first connecting pipe 31, or to communicate with the second connecting pipe 32.

[0026] In this embodiment, please refer to Figure 1-3 The inner cavity of the water inlet pipe 4 is located at one end of the heater 8 and is provided with a flow control valve 9. The flow control valve 9 includes a stepper motor 91, and the stepper motor 91 is fixedly installed on the top outer side of the circulation pipeline 3. The output end of the stepper motor 91 is fixedly connected with a drive shaft 92, and one end of the drive shaft 92 is fixedly connected with a main bevel gear 93. The inner wall of the circulation pipeline 3 is fixedly installed with a mounting sleeve 94, and one side of the inner wall of the mounting sleeve 94 is fixedly connected with a fixed plate 95, and the other side of the inner wall of the mounting sleeve 94 is movably connected with a movable plate 96, and one side of the movable plate 96 is fixedly connected with a secondary bevel gear 98, and the outer edge of the secondary bevel gear 98 is meshed with the outer edge of the main bevel gear 93. The surfaces of the fixed plate 95 and the movable plate 96 are both provided with flow openings 97 that penetrate through them. In this embodiment, the stepper motor 91 drives the drive shaft 92 to rotate, so that the movable plate 96 can rotate in the inner wall of the mounting sleeve 94, and the fixed plate 95 remains stationary, thereby changing the overlapping area of ​​the flow openings 97 opened on the surface of the movable plate 96 and the flow openings 97 opened on the surface of the fixed plate 95. By adjusting the overlapping area of ​​the flow openings 97, the speed of the water flowing through the flow control valve 9 is adjusted, so that when the water temperature is too low, the water flow speed is slowed down, and the water stays in the heater 8 for a longer time, thereby achieving the effect of continuously heating the low-temperature water.

[0027] In this embodiment, please refer to Figure 4 The circulation pipeline 3 also includes an elbow 33, which is located at the corner of the circulation pipeline 3 and is connected to the first connecting pipe 31 through a connecting seat 34 and a connecting rod 35. The outer side of the connecting rod 35 is provided with a spiral pattern, and the surface of the connecting seat 34 is provided with a spiral hole that is compatible with the spiral pattern on the outer side of the connecting rod 35. In this embodiment, the circulation pipeline 3 is connected into a circulating pipeline through the elbow 33, the connecting seat 34, and the connecting rod 35, so that the water flow is circulated and heated. At the same time, when the water does not need to be heated in summer, it is convenient to remove it for maintenance to avoid damage.

[0028] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 The PLC controller 7 is electrically connected to the heater 8 through a wire, the PLC controller 7 is electrically connected to the stepper motor 91 and the servo motor 52 through a relay and a contactor respectively, and the PLC controller 7 is electrically connected to the electronic temperature sensor 6 through a wire. In this embodiment, when the electronic temperature sensor 6 detects that the water temperature is too low, the three-way valve 5 can be started through the PLC controller 7 to allow water to enter the circulation system, the heater 8 is started to heat the water, and the control flow valve 9 is started to extend the heating time of the low-temperature water.

[0029] In this embodiment, please refer to Figure 5 The outer side of the valve ball 53 is transitionally matched with the inner cavity of the valve body 51. By adopting the above technical solution, when the pipeline is switched and connected through the valve ball 53, water is prevented from flowing into the interior of the valve body 51 through the gap.

[0030] In this embodiment, please refer to Figure 3 The inner wall of the mounting sleeve 94 has an interference fit with the outer side of the fixed plate 95, the inner wall of the mounting sleeve 94 has a transition fit with the outer side of the movable plate 96, and the corresponding surfaces of the mounting sleeve 94 and the fixed plate 95 have a transition fit. In this embodiment, water flow is prevented from passing through the gaps among the mounting sleeve 94, the fixed plate 95, and the movable plate 96, thereby ensuring the accuracy of the water flow after speed control.

[0031] In this embodiment, please refer to Figure 3 , Figure 5 The outer side of the valve ball 53 and the outer sides of the main bevel gear 93 and the auxiliary bevel gear 98 are all coated with galvanized material. In this embodiment, these components are prevented from rusting after long-term use in water, thereby affecting the transmission effect.

[0032] Working principle of the utility model: when the water temperature in the cooling water tower (not shown in the figure) is too low in winter, the servo motor 52 controls the valve ball 53 to rotate, so that the first connecting hole 54 corresponds to the water inlet end of the water inlet pipe 4, and the second connecting hole 55 corresponds to the first connecting pipe 31. At this time, the water in the pipeline is sucked into the chiller 1 through the water inlet pipe 4, and the water in the pipeline is sucked into the chiller 1 through the water inlet pipe 4. At the same time, the water flows out through the water outlet pipe 10, so that the water flows through the water inlet pipe 4-the chiller 1-the water outlet pipe 10-the first connecting pipe 31-the water inlet pipe 4, forming a small cycle. When the water flows into the heater 8 through the water inlet pipe 4, the low-temperature water is heated by the heater 8. Under continuous circulation, the water temperature in the small cycle gradually increases. After the electronic temperature sensor 6 detects the increase in water temperature, it sends an electrical signal to the PLC controller 7. Through the PLC The controller 7 starts the servo motor 52 to control the valve ball 53 to reverse, so that the first connecting hole 54 corresponds to the second connecting pipe 32, and the second connecting hole 55 corresponds to one end of the water inlet pipe 4, so that the water in the cooling water tower is sucked into the circulation pipeline 3, and mixed with the heated water and absorbed by the chiller 1. At this time, the water passes through the circulation pipeline 3-the second connecting pipe 32-the water inlet pipe 4-the chiller 1-the water outlet pipe 10-the circulation pipeline 3, forming a large circulation, and mixes with the water flowing into the cooling water tower to neutralize the water temperature. As the amount of water injected into the cooling water tower increases, when the water temperature is lower again, it is detected by the electronic temperature sensor 6, and the servo motor 52 is started. The valve ball 53 rotates, switches the pipeline to a small circulation, and continues to heat the water temperature. This cycle is repeated to prevent the chiller 1 from directly absorbing low-temperature water in the cooling water tower in winter.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. The utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel device for heating water temperature of a cooling water tower in winter, comprising a chiller (1) and a compressor (2), characterized in that: A circulation pipeline (3) is provided at one end of the compressor (2), and one end of the circulation pipeline (3) is connected to the other end of the compressor (2). One side of the compressor (2) is connected to a cooling water tower via a pipeline. A water inlet pipe (4) is provided at one side of the chiller (1). An electronic temperature sensor (6) is provided on the top outer side of the water inlet pipe (4), and the bottom of the electronic temperature sensor (6) is provided in the inner cavity of the water inlet pipe (4). A water outlet pipe (10) connected to the circulation pipeline (3) is also provided at one side of the chiller (1). A three-way valve (5) connected to the water inlet pipe (4) is provided on the outer side of the circulation pipeline (3). A PLC controller (7) is provided on the top outer wall of the circulation pipeline (3) on one side of the three-way valve (5). A heater (8) is also provided on the outer side of the water inlet pipe (4).

2. A new type of water temperature heating device for cooling water tower in winter according to claim 1, characterized in that: The three-way valve (5) comprises a valve body (51), a servo motor (52) is fixedly mounted on the top of the valve body (51), a valve ball (53) is arranged at the output end of the servo motor (52), the valve ball (53) is movably connected to the inner cavity of the valve body (51), a first connecting hole (54) is arranged on one side of the valve ball (53), and a second connecting hole (55) is arranged on the other side of the valve ball (53), an intercommunication structure is formed between the first connecting hole (54) and the second connecting hole (55), a first connecting pipe (31) and a second connecting pipe (32) are arranged at two ends of the valve body (51), one side of the valve body (51) is butt-jointed with one end of the water inlet pipe (4), and one end of the water inlet pipe (4) forms an angle of ninety degrees with one end of the first connecting pipe (31) and one end of the second connecting pipe (32).

3. A new type of water temperature heating device for cooling water tower in winter according to claim 1, characterized in that: The inner cavity of the water inlet pipe (4) is located at one end of the heater (8) and is provided with a flow control valve (9). The flow control valve (9) includes a stepping motor (91), and the stepping motor (91) is fixedly installed on the top outer side of the circulation pipeline (3). The output end of the stepping motor (91) is fixedly connected to a driving shaft (92), and one end of the driving shaft (92) is fixedly connected to a main bevel gear (93). The inner wall of the circulation pipeline (3) is fixedly installed with a mounting sleeve (94), one side of the inner wall of the mounting sleeve (94) is fixedly connected to a fixed plate (95), and the other side of the inner wall of the mounting sleeve (94) is movably connected to a movable plate (96), one side of the movable plate (96) is fixedly connected to a secondary bevel gear (98), and the outer edge of the secondary bevel gear (98) is meshed with the outer edge of the main bevel gear (93), and the surfaces of the fixed plate (95) and the movable plate (96) are both provided with flow openings (97) that penetrate through them.

4. A novel water temperature heating device for cooling water tower in winter according to claim 1, characterized in that: The circulation pipeline (3) further comprises an elbow (33), the elbow (33) being located at a corner of the circulation pipeline (3) and being butt-jointed with the first connection pipe (31) via a connection seat (34) and a connection rod (35), the outer side of the connection rod (35) being provided with a spiral pattern, and the surface of the connection seat (34) being provided with a spiral hole matching the spiral pattern on the outer side of the connection rod (35).

5. A new type of water heating device for cooling water tower in winter according to claim 3, characterized in that: The PLC controller (7) is electrically connected to the heater (8) via a wire, the PLC controller (7) is electrically connected to the stepper motor (91) and the servo motor (52) via a relay and a contactor respectively, and the PLC controller (7) is electrically connected to the electronic temperature sensor (6) via a wire.

6. A new type of water heating device for cooling water tower in winter according to claim 2, characterized in that: The outer side of the valve ball (53) is transitionally matched with the inner cavity of the valve body (51).

7. A new type of water heating device for cooling water tower in winter according to claim 3, characterized in that: The inner wall of the installation sleeve (94) is interference-fitted with the outer side of the fixed plate (95), the inner wall of the installation sleeve (94) is transitionally fitted with the outer side of the movable plate (96), and the corresponding surfaces of the installation sleeve (94) and the fixed plate (95) are transitionally fitted.

8. A novel water temperature heating device for cooling water tower in winter according to claim 2, characterized in that: The outer side of the valve ball (53) and the outer sides of the main bevel gear (93) and the auxiliary bevel gear (98) are all coated with galvanized material.

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