A constant-pressure circulating water cooling tower system

Abstract

The present invention discloses a constant-pressure circulating water cooling tower system, comprising: a cooling tower with a hot water inlet at the top and a cooling water outlet at the bottom; a cold water storage tank connected to the cooling water outlet and a water softener through pipelines; a cold water delivery pump with a pumping end connected to the cold water storage tank and a water outlet end connected to a workshop through a cold water pipeline; a hot water storage pool connected to the workshop through a hot water pipeline; a hot water delivery pump with a pumping end connected to the hot water storage pool and a water outlet end connected to the hot water inlet through a pipeline; a water pressure balancer disposed in the hot water of the hot water storage pool and composed of a hot water port interface connecting to the hot water pipeline, a hot water pump interface connecting to the hot water delivery pump, and a water channel for water exchange with the hot water storage pool. By adding a hot water storage pool and a water pressure balancer to the original cooling tower system, the present invention realizes the input of constant-pressure water flow into the cooling tower, thereby improving the efficiency of the cooling tower.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling tower design, and mainly relates to a constant-pressure circulating water cooling tower system. Background Art

[0002] A cooling tower is a very common cooling water supply device in workshop processing. Its main function is to provide cooling water for the workshop, help cool the equipment in the workshop, and at the same time cool the hot water output from the workshop for recycling. The problem existing in the current cooling tower system is that the water pressure of the hot water input into the cooling tower is directly led out from the workshop, resulting in unstable water pressure in and out, which will cause problems such as damage to the water pump and low efficiency of the cooling tower.

[0003] In view of the above problems, there is an urgent need to innovate and design on the basis of the original cooling tower system. Summary of the Invention

[0004] 1. Object of the Invention

[0005] The present invention provides a constant-pressure circulating water cooling tower system to solve the technical problem that the existing cooling tower system cannot ensure the stable water pressure of the water input into the cooling tower as mentioned in the above background art.

[0006] 2. Technical Solution

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A constant-pressure circulating water cooling tower system, characterized in that it includes: a cooling tower with a hot water inlet at the top and a cooling water outlet at the bottom; a cold water storage tank connected to the cooling water outlet and a water softener through a pipeline; a cold water delivery pump with its suction end connected to the cold water storage tank and its discharge end connected to the workshop through a cold water pipeline; a hot water storage pool connected to the workshop through a hot water pipeline; a hot water delivery pump with its suction end connected to the hot water storage pool and its discharge end connected to the hot water inlet through a pipeline; a water pressure balancer arranged in the hot water of the hot water storage pool, which is composed of a hot water port interface connecting the hot water pipeline, a hot water pump interface connecting the hot water delivery pump, and a water channel for water exchange with the hot water storage pool.

[0009] Preferably, the hot water storage pool and the cold water storage tank are adjacent and at the same height, and there is an exchange channel between them. The position of the exchange channel is higher than two-thirds of the highest water levels of the hot water storage pool and the cold water storage tank and lower than the highest water levels of the hot water storage pool and the cold water storage tank.

[0010] Preferably, the water softener includes: a tap water outlet, an inlet solenoid valve, a booster pump, a sand filter, a carbon filter, a resin filter, and a water softener outlet connected in sequence; the filtered wastewater of the sand filter, the carbon filter, and the resin filter flows out to a wastewater storage; the salt of the resin filter flows into a salt bucket.

[0011] Preferably, the height of the cooling water outlet is higher than the height of the cold water storage tank, and the cooling water outlet is connected to the inside of the cold water storage tank through a pipe.

[0012] Preferably, cold water flow control valves are respectively provided at both ends of the cold water transfer pump.

[0013] Preferably, hot water flow control valves are respectively provided at both ends of the hot water transfer pump.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] By adding a hot water storage pool and a water pressure balancer to the original cooling tower system, when the water flow introduced into the hot water port interface of the water pressure balancer is too large, a part of the water will flow out from the water channel into the hot water storage pool, thereby ensuring that the water pressure pumped out by the hot water pump from the hot water pump interface will not be too high. When the water flow introduced into the hot water port interface of the water pressure balancer is too small, a part of the water will be pumped from the hot water storage pool through the water channel to the hot water pump, thereby ensuring that the water pressure pumped out by the hot water pump from the hot water pump interface will not be too low.

[0017] By adding a water softener to the original cooling tower system, the water flow during the cyclic cooling and cooling processes will not cause additional damage and harmful substances to the machine, and the water flow is additionally pressurized.

[0018] By providing an exchange channel between the hot water storage pool and the cold water storage tank, when there is too much water in one of them, it will flow to the other, thereby preventing water overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the water pressure balancer in Embodiment 1 of the present invention;

[0021] Figure 3 is a schematic structural diagram of the water pressure balancer in Embodiment 3 of the present invention;

[0022] Figure 4 is a schematic structural diagram of the water pressure balancer in Embodiment 2 of the present invention.

[0023] Reference numeral

[0024] Cooling tower - 1, hot water inlet - 11, cooling water outlet - 12, cold water storage tank - 2, water softener - 3, tap water outlet - 31, inlet solenoid valve - 32, booster pump - 33, sand filter - 34, carbon filter - 35, resin filter - 36, water softener outlet - 37, waste water storage - 38, salt bucket - 39, cold water transfer pump - 4, cold water pipe - 41, cold water flow control valve - 42, hot water storage tank - 5, hot water pipe - 51, hot water transfer pump - 6, hot water flow control valve - 61, water pressure balancer - 7, hot water port interface - 71, hot water pump interface - 72, water channel - 73, exchange channel - 8. Detailed implementation mode

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] Reference Figure 1 、 Figure 2 A constant pressure circulating water cooling tower system, comprising: a cooling tower 1 with a hot water inlet 11 at the top and a cooling water outlet 12 at the bottom; a cold water storage tank 2 connected to the cooling water outlet 12 and a water softener 3 through a pipeline; a cold water transfer pump 4 with a pumping end connected to the cold water storage tank 2 and a water outlet end connected to a workshop through a cold water pipe 41; a hot water storage tank 5 connected to the workshop through a hot water pipe 51; a hot water transfer pump 6 with a pumping end connected to the hot water storage tank 5 and a water outlet end connected to the hot water inlet 11 through a pipeline; a water pressure balancer 7 disposed in the hot water of the hot water storage tank 5, composed of a hot water port interface 71 connected to the hot water pipe 51, a hot water pump interface 72 connected to the hot water transfer pump 6, and a water channel 73 for water exchange with the hot water storage tank 5. The present invention does not limit the specific installation position of the water pressure balancer 7. In this embodiment, the water pressure balancer 7 is a tubular body installed in the hot water storage tank 5, so as to achieve the effect of saving the process. The hot water port interface 71 and the hot water pump interface 72 are the interfaces at both ends of the tubular body, and the water channel 73 is the holes around the tubular body. The number of holes in the water channel 73 in this embodiment is not limited. Preferably, a small hole dense arrangement is adopted, and its advantage is that it can filter large object particles in the hot water tank and effectively reduce the damage to the hot water transfer pump 6 and the cooling tower 1.

[0028] Reference Figure 1 、 Figure 2, the hot water storage tank 5 and the cold water storage tank 2 are adjacent and at the same height, and an exchange channel 8 is provided therebetween. The position of the exchange channel 8 is higher than two-thirds of the highest water levels of the hot water storage tank 5 and the cold water storage tank 2 and lower than the highest water levels of the hot water storage tank 5 and the cold water storage tank 2. In specific implementation, the specific position of the exchange channel 8 is not limited. Preferably, it is higher than two-thirds of the highest water levels of the hot water storage tank 5 and the cold water storage tank 2 and lower than the highest water levels of the hot water storage tank 5 and the cold water storage tank 2. In specific implementation, the specific heights and sizes of the hot water storage tank 5 and the cold water storage tank 2 are not limited. Water tanks with different heights can be selected. Preferably, parallel water outlet tanks with the same height are adopted. In specific implementation, the exchange channel 8 can be cancelled. It can be judged according to the water storage amounts of the hot water storage tank 5 and the cold water storage tank 2. The exchange channel 8 can be cancelled when there is sufficient space.

[0029] Reference Figure 1 、 Figure 2 , the water softener 3 includes: a tap water outlet 31, a water inlet solenoid valve 32, a booster pump 33, a sand filter 34, a carbon filter 35, a resin filter 36, and a water softener outlet 37 connected in sequence; the filtered wastewater of the sand filter 34, the carbon filter 35, and the resin filter 36 flows out to the wastewater storage 38; the salt of the resin filter 36 flows into the salt bucket 39.

[0030] Reference Figure 1 、 Figure 2 , the height of the cooling water outlet 12 is higher than the height of the cold water storage tank 2, and the cooling water outlet 12 is connected to the inside of the cold water storage tank 2 through a pipeline. In specific implementation, the number and model of the cooling tower 1 are not specifically limited. Preferably, the number of the cooling towers 1 is greater than or equal to two, and preferably, non-atomizing cooling towers 1 are selected.

[0031] Reference Figure 1 、 Figure 2 , cold water flow control valves 42 are respectively provided at both ends of the cold water delivery pump 4. In specific implementation, the specific placement position and the number of the cold water delivery pump 4 are not limited. Preferably, one cold water delivery pump 4 is adopted and the position is close to the cold water storage tank 2.

[0032] Reference Figure 1 、 Figure 2 , hot water flow control valves 61 are respectively provided at both ends of the hot water delivery pump 6. In specific implementation, the specific placement position and the number of the hot water delivery pump 6 are not limited. Preferably, one hot water delivery pump 6 is adopted and the position is close to the hot water storage tank 5.

[0033] In summary, the principle of the present invention is that the operator arranges each device according to Figure 1After making the connections as shown, open the inlet solenoid valve 32. Tap water enters from the tap water outlet 31 into the booster pump 33 for pressurization and then flows successively through the sand filter 34, the carbon filter 35, and the resin filter 36. The wastewater filtered out will flow into the wastewater storage 38, and the resin filter 36 will filter out salts and flow into the salt bucket 39. Then, the purified soft water will flow out from the soft water machine outlet 37 to the cold water storage tank 2. Open the cold water flow control valve 42, and the cold water is transported to the workshop through the cold water pipeline 41 by the cold water delivery pump 4. After cooling the workshop equipment, it will become hot water and flow into the hot water storage pool 5 through the hot water pipeline 51. At the same time, the pipeline is directly connected to the hot water delivery pump 6 through the water pressure balancer 7. Open the hot water flow control valve 61, and the hot water delivery pump 6 transports the hot water in the hot water storage pool 5 and the hot water in the hot water pipeline 51 to the hot water inlet 11 at the top of the cooling tower 1. After being cooled by the cooling tower 1, it flows into the cold water pool from the cooling water outlet 12 for the next cycle. When the water pressure in the hot water pipeline 51 is too high, part of the water will flow out from the holes in the water channel 73 into the hot water storage pool 5. When the water pressure in the hot water pipeline 51 is too low, part of the water will flow from the hot water storage pool 5 through the holes in the water channel 73 into the hot water delivery pump 6, thereby achieving water pressure balance.

[0034] Embodiment 2

[0035] Reference Figure 1 、 Figure 4 A constant-pressure circulating water cooling tower system, comprising: a cooling tower 1 with a hot water inlet 11 at the top and a cooling water outlet 12 at the bottom; a cold water storage tank 2 connected to the cooling water outlet 12 and the water softener 3 through pipelines; a cold water delivery pump 4 with its suction end connected to the cold water storage tank 2 and its discharge end connected to the workshop through a cold water pipeline 41; a hot water storage pool 5 connected to the workshop through a hot water pipeline 51; a hot water delivery pump 6 with its suction end connected to the hot water storage pool 5 and its discharge end connected to the hot water inlet 11 through a pipeline; a water pressure balancer 7 disposed in the hot water of the hot water storage pool 5, composed of a hot water port interface 71 connecting the hot water pipeline 51, a hot water pump interface 72 connecting the hot water delivery pump 6, and a water channel 73 for water exchange with the hot water storage pool 5. The present invention does not limit the specific installation position of the water pressure balancer 7. In this embodiment, the water pressure balancer 7 is a tubular body installed in the hot water storage pool 5, so as to achieve the effect of saving the process. The hot water port interface 71 and the hot water pump interface 72 are the interfaces at both ends of the tubular body, and a water channel 73 interface is provided on the side of the tubular body. The size of the water channel 73 interface is not limited in this embodiment. Preferably, the size of the water channel 73 interface is equal to the size of the tubular body nozzle, and its advantage is that it can smoothly achieve the outflow and inflow of water, and the water pressure balance effect is good.

[0036] Reference Figure 1 、 Figure 4, there is an adjacent and level exchange channel 8 between the hot water storage tank 5 and the cold water storage tank 2, and the position of the exchange channel 8 is higher than two-thirds of the highest water level of the hot water storage tank 5 and the cold water storage tank 2 and lower than the highest water level of the hot water storage tank 5 and the cold water storage tank 2. In specific implementation, the specific position of the exchange channel 8 is not limited, and preferably it is higher than two-thirds of the highest water level of the hot water storage tank 5 and the cold water storage tank 2 and lower than the highest water level of the hot water storage tank 5 and the cold water storage tank 2. In specific implementation, the specific height and size of the hot water storage tank 5 and the cold water storage tank 2 are not limited, and water tanks with different heights can be selected. Preferably, parallel water outlet tanks with the same height are adopted. In specific implementation, the exchange channel 8 can be cancelled. It can be judged according to the water storage capacity of the hot water storage tank 5 and the cold water storage tank 2. The exchange channel 8 can be cancelled when there is sufficient space.

[0037] Reference Figure 1 、 Figure 4 , the water softener 3 includes: a tap water outlet 31, an inlet solenoid valve 32, a booster pump 33, a sand filter 34, a carbon filter 35, a resin filter 36, and a water softener outlet 37 connected in sequence; the filtered wastewater of the sand filter 34, the carbon filter 35, and the resin filter 36 flows out to the wastewater storage 38; the salt of the resin filter 36 flows into the salt bucket 39.

[0038] Reference Figure 1 、 Figure 4 , the height of the cooling water outlet 12 is higher than the height of the cold water storage tank 2, and the cooling water outlet 12 is connected to the inside of the cold water storage tank 2 through a pipeline. In specific implementation, the number and model of the cooling tower 1 are not specifically limited. Preferably, the number of the cooling tower 1 is greater than or equal to two, and preferably the atomizing cooling tower 1 is not used.

[0039] Reference Figure 1 、 Figure 4 , cold water flow control valves 42 are respectively provided at both ends of the cold water delivery pump 4. In specific implementation, the specific placement position and the number of the cold water delivery pump 4 are not limited. Preferably, one cold water delivery pump 4 is adopted and the position is close to the cold water storage tank 2.

[0040] Reference Figure 1 、 Figure 4 , hot water flow control valves 61 are respectively provided at both ends of the hot water delivery pump 6. In specific implementation, the specific placement position and the number of the hot water delivery pump 6 are not limited. Preferably, one hot water delivery pump 6 is adopted and the position is close to the hot water storage tank 5.

[0041] In summary, the principle of the present invention is that the operator arranges each device according to Figure 1After connecting as shown, open the inlet solenoid valve 32, and tap water enters from the tap water outlet 31 into the booster pump 33 for pressurization. It flows through the sand tank filter 34, carbon tank filter 35, and resin tank filter 36 in sequence. The filtered wastewater will flow into the wastewater storage 38, and the resin tank filter 36 will filter out salts and flow into the salt bucket 39. Then, the purified soft water will flow out from the soft water machine outlet 37 to the cold water storage tank 2. Open the cold water flow control valve 42, and the cold water is transported to the workshop through the cold water pipeline 41 by the cold water transfer pump 4. After cooling the workshop equipment, it will become hot water and flow into the hot water storage pool 5 through the hot water pipeline 51. At the same time, the pipeline is directly connected to the hot water transfer pump 6 through the water pressure balancer 7. Open the hot water flow control valve 61, and the hot water transfer pump 6 transports the hot water in the hot water storage pool 5 and the hot water in the hot water pipeline 51 to the hot water inlet 11 at the top of the cooling tower 1. After being cooled by the cooling tower 1, it flows into the cold water pool from the cooling water outlet 12 for the next cycle. When the water pressure in the hot water pipeline 51 is too high, part of the water will flow out from the water channel 73 interface to the hot water storage pool 5. When the water pressure in the hot water pipeline 51 is too low, part of the water will flow from the hot water storage pool 5 through the water channel 73 interface into the hot water transfer pump 6, thereby achieving water pressure balance.

[0042] Embodiment 3

[0043] Reference Figure 1 、 Figure 3 A constant-pressure circulating water cooling tower system, comprising: a cooling tower 1 with a hot water inlet 11 at the top and a cooling water outlet 12 at the bottom; a cold water storage tank 2 connected to the cooling water outlet 12 and a water softener 3 through pipelines; a cold water transfer pump 4 with its suction end connected to the cold water storage tank 2 and its discharge end connected to the workshop through a cold water pipeline 41; a hot water storage pool 5 connected to the workshop through a hot water pipeline 51; a hot water transfer pump 6 with its suction end connected to the hot water storage pool 5 and its discharge end connected to the hot water inlet 11 through a pipeline; a water pressure balancer 7 provided in the hot water of the hot water storage pool 5, composed of a hot water port interface 71 connecting the hot water pipeline 51, a hot water pump interface 72 connecting the hot water transfer pump 6, and a water channel 73 for water exchange with the hot water storage pool 5. The present invention does not limit the specific installation position of the water pressure balancer 7. In this embodiment, the water pressure balancer 7 is a box that can be installed in the hot water storage pool 5. The hot water port interface 71 is a connection port provided at the upper end of one side of the box, and the hot water pump interface 72 is a connection port provided at the lower end of the other side of the box. In this embodiment, the form of the water channel 73 is the topless box. In this embodiment, the outflow and inflow of water can be realized smoothly, and the water pressure balancer 7 can also be taken out and installed outside the hot water storage pool 5 to achieve the same effect. Its feature is that the top of the box faces upward and is provided between the hot water storage pool 5 and the hot water transfer pump 6. When the water pressure is insufficient, an additional water pump can be added to pump the water in the hot water storage pool 5 into the box.

[0044] Reference Figure 1 、Figure 3 There is an adjacent and level exchange channel 8 between the hot water storage tank 5 and the cold water storage tank 2, and the position of the exchange channel 8 is higher than two-thirds of the highest water levels of the hot water storage tank 5 and the cold water storage tank 2 and lower than the highest water levels of the hot water storage tank 5 and the cold water storage tank 2. In specific implementation, the specific position of the exchange channel 8 is not limited. Preferably, it is higher than two-thirds of the highest water levels of the hot water storage tank 5 and the cold water storage tank 2 and lower than the highest water levels of the hot water storage tank 5 and the cold water storage tank 2. In specific implementation, the specific heights and sizes of the hot water storage tank 5 and the cold water storage tank 2 are not limited. Water tanks with different heights can be selected. Preferably, parallel water outlet tanks with the same height are used. In specific implementation, the exchange channel 8 can be cancelled. It can be judged according to the water storage amounts of the hot water storage tank 5 and the cold water storage tank 2. The exchange channel 8 can be cancelled when there is sufficient space.

[0045] Reference Figure 1 、 Figure 3 The water softener 3 includes: a tap water outlet 31, a water inlet solenoid valve 32, a booster pump 33, a sand tank filter 34, a carbon tank filter 35, a resin tank filter 36, and a water softener outlet 37 connected in sequence; the filtered wastewater of the sand tank filter 34, the carbon tank filter 35, and the resin tank filter 36 flows out to the wastewater storage 38; the salt of the resin tank filter 36 flows into the salt bucket 39.

[0046] Reference Figure 1 、 Figure 3 The height of the cooling water outlet 12 is higher than the height of the cold water storage tank 2, and the cooling water outlet 12 is connected to the inside of the cold water storage tank 2 through a pipeline. In specific implementation, the number and model of the cooling tower 1 are not specifically limited. Preferably, the number of the cooling towers 1 is greater than or equal to two, and preferably, non-atomizing cooling towers 1 are selected.

[0047] Reference Figure 1 、 Figure 3 Cold water flow control valves 42 are respectively arranged at both ends of the cold water delivery pump 4. In specific implementation, the specific placement position and the number of the cold water delivery pump 4 are not limited. Preferably, one cold water delivery pump 4 is used and the position is close to the cold water storage tank 2.

[0048] Reference Figure 1 、 Figure 3 Hot water flow control valves 61 are respectively arranged at both ends of the hot water delivery pump 6. In specific implementation, the specific placement position and the number of the hot water delivery pump 6 are not limited. Preferably, one hot water delivery pump 6 is used and the position is close to the hot water storage tank 5.

[0049] In summary, the principle of the present invention is that the operator arranges each device according to Figure 1After making the connections as shown, open the water inlet solenoid valve 32. Tap water enters from the tap water outlet 31, is pressurized by the booster pump 33, and then flows successively through the sand tank filter 34, the carbon tank filter 35, and the resin tank filter 36. The wastewater filtered out will flow into the wastewater storage 38, and the resin tank filter 36 will filter out the salts and flow into the salt bucket 39. Then, the purified soft water will flow out from the soft water machine outlet 37 into the cold water storage tank 2. Open the cold water flow control valve 42, and the cold water is transported by the cold water delivery pump 4 through the cold water pipe 41 to the workshop. After cooling the workshop equipment, it will become hot water and flow into the hot water storage pool 5 through the hot water pipe 51. At the same time, the pipe is directly connected to the hot water delivery pump 6 through the water pressure balancer 7. Open the hot water flow control valve 61, and the hot water delivery pump 6 transports the hot water in the hot water storage pool 5 and the hot water in the hot water pipe 51 to the hot water inlet 11 at the top of the cooling tower 1. After being cooled by the cooling tower 1, it flows out from the cooling water outlet 12 into the cold water pool for the next cycle. When the water pressure balancer 7 is installed inside the hot water storage pool 5, when the water pressure in the hot water pipe 51 is too high, part of the water will flow out through the water channel 73 into the hot water storage pool 5. When the water pressure in the hot water pipe 51 is too low, part of the water will flow from the hot water storage pool 5 through the water channel 73 into the hot water delivery pump 6, thus achieving water pressure balance. When the water pressure balancer 7 is installed outside the hot water storage pool 5, since there is no direct water pressure relationship between the hot water pipe 51 and the hot water delivery pump 6, the water of the hot water delivery pump 6 all comes from the water tank with stable water pressure, thus achieving water pressure balance.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A constant-pressure circulating water cooling tower system, characterized in that, Including: A cooling tower (1) with a hot water inlet (11) at the top and a cooling water outlet (12) at the bottom; a cold water storage tank (2) connected to the cooling water outlet (12) and a water softener (3) through pipes; a cold water transfer pump (4) with its suction end connected to the cold water storage tank (2) and its water outlet end connected to a workshop through a cold water pipe (41); a hot water storage pool (5) connected to the workshop through a hot water pipe (51); a hot water transfer pump (6) with its suction end connected to the hot water storage pool (5) and its water outlet end connected to the hot water inlet (11) through a pipe; a water pressure balancer (7) disposed in the hot water of the hot water storage pool (5), composed of a hot water port interface (71) connected to the hot water pipe (51), a hot water pump interface (72) connected to the hot water transfer pump (6), and a water channel (73) for water exchange with the hot water storage pool (5). The hot water storage pool (5) and the cold water storage tank (2) are adjacent and at the same height, and an exchange channel (8) is provided therebetween. The position of the exchange channel (8) is higher than two-thirds of the highest water levels of the hot water storage pool (5) and the cold water storage tank (2) and lower than the highest water levels of the hot water storage pool (5) and the cold water storage tank (2). The height of the cooling water outlet (12) is higher than that of the cold water storage tank (2), and the cooling water outlet (12) is connected to the inside of the cold water storage tank (2) through a pipe.

2. The constant-pressure circulating water cooling tower system according to claim 1, wherein The water softener (3) includes: a tap water outlet (31), an inlet solenoid valve (32), a booster pump (33), a sand filter (34), a carbon filter (35), a resin filter (36), and a water softener outlet (37) connected in sequence; the filtered wastewater of the sand filter (34), the carbon filter (35), and the resin filter (36) flows into a wastewater storage (38); the salt of the resin filter (36) flows into a salt bucket (39).

3. The constant-pressure circulating water cooling tower system according to claim 1, wherein: Cold water flow control valves (42) are respectively provided at both ends of the cold water transfer pump (4).

4. A constant-pressure circulating water cooling tower system according to claim 1, characterized in that: Hot water flow control valves (61) are respectively provided at both ends of the hot water transfer pump (6).

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