TWI738370B - Pipe freezing method - Google Patents

Abstract

A pipe freezing method is provided, which include following steps: covering a pipe by a freezing fixture, temperature of water in the pipe is about 15°C~35°C; connecting a liquid nitrogen freezing device to the freezing fixture; connecting an iced water equipment to the pipe; confirming the water in pipe remaining stationary; providing iced water into pipe by iced water equipment, temperature of the iced water is about 5°C~10°C lowering the temperature of the water in the pipe to about 10°C~12°C; keeping the water pressure of the pipe about 1kg/cm ²for a first time period; keeping freezing the pipe by the liquid nitrogen freezing device for a second time period to make the surface temperature of the freezing fixture retain a first temperature, and make the two ends, not covered by the freezing fixture, of the pipe generate frosting of about 5~7cm; and cutting off said two ends of the pipe.

Description

Freezing water stop method

The present invention relates to a water stop method, in particular to a freezing water stop method applied to continuous water operation, which can improve freezing efficiency, shorten freezing time and prevent damage to water pipe equipment.

If a large factory or technology company encounters a situation where water is cut off due to the need for construction of water pipes, its production operations will be greatly affected and cause serious losses; therefore, in this case, continuous water operations are required to prevent losses. The freezing and water-stopping method is one of the water-stopping methods often used in continuous water operations; however, the existing freezing and water-stopping methods still have many shortcomings to be improved.

For example, when implementing the freezing and stopping method, the construction personnel cannot confirm whether the water in the water pipe has been completely frozen. Therefore, they often find that the water in the water pipe is not completely frozen after cutting off the water pipe, which causes the water in the water pipe to leak out. Construction operations are affected.

In addition, after the construction personnel cut off the water pipe, the frozen water of the water pipe may slide out due to water pressure or other factors. At this time, the construction personnel must stop the water through other methods, which also causes the construction operation to be restarted. conduct.

Due to the lack of conventional construction methods, the applicant in this case filed a Republic of China invention patent application on March 2, Republic of China 107 (2018). The application name is "Applied to continuous water operations. The method of freezing and stopping water", the application number is 107106991, which was later approved for invention patent announcement on September 1, Republic of China 107 (2018), and the certificate number is TW I670422 B.

The above-mentioned "freezing and stopping water method for continuous water operation" includes the following steps: covering a water pipe with a frozen saddle belt; connecting a liquid nitrogen freezing device with the freezing saddle belt; making the water pressure of the water pipe a first Keep at about 1kg/cm ² in a time interval, the first time interval is about 1 to 5 minutes; the water pipe is kept frozen in a second time interval through the liquid nitrogen freezing device, so that the surface temperature of the frozen saddle belt Maintained at a first temperature, the temperature of the two ends of the water pipe not covered by the frozen saddle belt is maintained at a second temperature in the second time interval, and the two ends of the water pipe not covered by the frozen saddle belt are maintained at a second temperature The frost of about 5-7 centimeters (cm) is generated at each end, wherein the second time interval is about 0.5 to 1.5 hours, the first temperature is about -25°C to -70°C, and the second temperature is about -30 ℃~-50℃; and cut off the two ends of the water pipe that are not covered by the frozen saddle strap.

Since the above-mentioned "freezing and water-stopping method applied to continuous water operation" can indeed improve the lack of the freezing and water-stopping method of the prior art, the invention patent can be obtained. However, based on the inventive spirit of excellence, the applicant believes that the above-mentioned "freezing water-stop method applied to continuous water operation" still has room for improvement.

For example, when the diameter of the water pipe is large, it takes a relatively long time to completely freeze the water in the water pipe. Take a water pipe with an inner diameter of 200 millimeters (mm) as an example. When the water temperature in the water pipe is about 30°C, it takes about 3 to 4 hours to completely freeze the water in the water pipe.

If too much cold liquid nitrogen is rashly applied in order to quickly freeze the water in the water pipe, it will cause damage to the water pipe equipment.

According to this, how to have a "freezing water stop method" that can improve the freezing efficiency, shorten the freezing time and not cause damage to the plumbing equipment is a problem that people in the relevant technical field urgently need to solve.

In view of the above-mentioned problems of the prior art, one of the objectives of the present invention is to provide a freezing and water-stopping method to solve various problems that are easily caused by the freezing and water-stopping method of the prior art.

According to one of the objectives of the present invention, a method for freezing and stopping water is provided, which may include the following steps: covering a water pipe with a freezing saddle, the temperature of the water in the pipe is about 15℃~35℃; Saddle belt connection; connect an ice water equipment to the water pipe; confirm that the water in the water pipe remains static; the ice water equipment is used to inject the ice water into the water pipe. The temperature of the ice water is about 5℃~10℃, so that the water in the water pipe The temperature drops to about 10℃~12℃; the water pressure of the water pipe is maintained at about 1kg/cm ² in the first time interval; the water pipe is kept frozen in the second time interval through the liquid nitrogen freezing device, so that the saddle belt is frozen The surface temperature is maintained at the first temperature, and the two ends of the water pipe that are not covered by the frozen saddle belt are respectively frosted about 5-7 centimeters (cm); and the two ends of the water pipe that are not covered by the frozen saddle belt are cut off.

In a preferred embodiment, the ice water equipment includes: an ice water maker for making ice water; a water inlet pipe, the opposite ends of which are respectively connected to the ice water maker and the water pipe is not covered by the freezing saddle belt One of the two ends of a water outlet pipe, the opposite ends of which are respectively connected to the ice maker and the other end of the two ends of the water pipe that are not covered by the frozen saddle strap; A pump is installed on the water inlet pipe; the ice water produced by the ice water maker is first fed into the water inlet pipe by the pump and then into the section of the water pipe covered by the frozen saddle belt, so that the ice water is mixed with the water in the water pipe , The temperature of the water in the water pipe is reduced, the mixed water formed by mixing the ice water and the water in the water pipe flows back to the ice maker from the outlet pipe, and the ice maker reduces the temperature of the mixed water to about 5 After the ice water at ℃~10℃, the ice water will be fed into the water inlet pipe by the pump until the temperature of the water in the water pipe drops to about 10℃~12℃.

In a preferred embodiment, a temperature sensor is respectively provided on the water inlet pipe and the water outlet pipe to respectively sense the temperature of the ice water in the water inlet pipe and the temperature of the mixed water in the water outlet pipe.

In a preferred embodiment, the water pressure of the ice water equipment is greater than the water pressure of the water pipe.

In a preferred embodiment, the water pressure of the ice water equipment is in the range of greater than 1 kg/cm ² to 8 kg/cm ² .

In a preferred embodiment, the first time interval may be about 1 to 5 minutes.

In a preferred embodiment, the second time interval may be about 0.5 to 1.5 hours.

In a preferred embodiment, the first temperature may be about -25°C to -70°C.

In a preferred embodiment, the liquid nitrogen freezing device continuously freezes the water pipe in the second time interval, so that the surface temperature of the frozen saddle belt is maintained at the first temperature, and the second water pipe is not covered by the frozen saddle belt. The step of producing about 5-7 cm of frost on the ends may further include the following steps: keeping the temperature of the two ends of the water pipe not covered by the frozen saddle belt at the second temperature during the second time interval.

In a preferred embodiment, the second temperature may be about -30°C to -50°C.

In a preferred embodiment, the step of cutting off the two ends of the water pipe that are not covered by the frozen saddle strap may further include the following steps: confirming that there is no water pressure in the drainage from the end of the water pipe.

In a preferred embodiment, the step of cutting the two ends of the water pipe that are not covered by the frozen saddle may further include the following step: wait for the third time interval after the water pipe is emptied.

In a preferred embodiment, the third time interval may be about 5-15 minutes.

In a preferred embodiment, the step of cutting off the two ends of the water pipe that are not covered by the frozen saddle strap may further include the following steps: respectively arranging stop posts at the two ends of the frozen saddle strap.

In summary, according to the freezing and water stopping method of the present invention applied to continuous water operation, it can have one or more of the following advantages:

(1) In an embodiment of the present invention, the freezing and water stopping method can increase the freezing efficiency and shorten the freezing time by cooling the water in the water pipe.

(2) In an embodiment of the present invention, the freezing water stop method can ensure the water pipe through multiple steps such as maintaining the water pressure of the water pipe at a specific pressure, maintaining the surface temperature of the frozen saddle belt at a specific temperature, and generating a specific length of frost. The water in the water has been completely frozen and will not cause damage to the water pipe equipment, so the water pipe will not leak after the water pipe is cut to ensure that the continuous water operation can be carried out smoothly.

(3) In an embodiment of the present invention, the freezing and water stopping method can set blocking columns at the two ends of the frozen saddle after the water pipe is cut, so that the frozen water in the water pipe will not slide out in one piece, so that continuous water operation more efficient.

1: Freezing water stop device

11: Frozen saddle belt

111: connecting column

112: connecting pipe

12: Liquid nitrogen freezing device

13: blocking column

14: Ice water equipment

141: Ice Maker

142: Inlet Pipe

143: Outlet pipe

144: Pump

145,146: temperature sensor

P: Water pipe

S201~S210, S401~S411: Step flow

Fig. 1 is a schematic diagram of the first embodiment of the freezing and water-stopping device of the present invention.

Fig. 2 is a flowchart of the first embodiment of the present invention.

Fig. 3 is a schematic diagram of the second embodiment of the freezing and water stopping device of the present invention.

Fig. 4 is a flowchart of the second embodiment of the present invention.

Hereinafter, embodiments of the freezing and water-stopping method according to the present invention will be described with reference to related drawings. For clarity and convenience of the drawings, the components in the drawings may be exaggerated or reduced in size and proportion. In the following description and/or the scope of the patent application, when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or an intervening element may be present; and when referring to an element When "directly connected" or "directly coupled" to another element, there is no intervening element, and other words used to describe the relationship between elements or layers should be interpreted in the same way. To facilitate understanding, the same elements in the following embodiments are described with the same symbols.

Please refer to FIG. 1, which is a schematic diagram of the first embodiment of the freezing and water stopping device of the present invention. As shown in the figure, the freezing water stop device 1 may include a freezing saddle belt 11, a liquid nitrogen freezing device 12, and an ice water device 14.

The frozen saddle belt 11 can cover the water pipe P, and the temperature of the water in the water pipe P is about 15°C~35°C; the frozen saddle belt 11 can include a connecting column 111, which can pass through the connecting pipe 112 and the liquid nitrogen freezing device 12 (such as a liquid nitrogen storage tank) is connected, so that the liquid nitrogen freezing device 12 can deliver liquid nitrogen to the freezing saddle belt 11 with a frozen water pipe P.

The ice water equipment 14 includes an ice water maker 141, an inlet pipe 142, an outlet pipe 143 and a pump 144. The ice water equipment 14 is connected with the water pipe P to form a loop.

The ice water maker 141 is used to make ice water, and the temperature of the ice water is about 5°C to 10°C. The water pressure of the ice water equipment 14 is greater than the water pressure of the water pipe P. For example, if the water pressure of the water pipe P is 1 kg/cm ² , the water pressure of the ice water equipment 14 may be in the range of greater than 1 kg/cm ² to 8 kg/cm ² .

The opposite ends of the water inlet pipe 142 are respectively connected to the ice maker 141 and one of the two ends of the water pipe P that are not covered by the frozen saddle belt 11, for example, the right end of the water pipe P that is not covered by the frozen saddle belt 11 as shown in FIG. .

The opposite ends of the water outlet pipe 143 are respectively connected to the ice maker 141 and the other end of the two ends of the water pipe P that are not covered by the frozen saddle belt 11, for example, the water pipe P shown in FIG. 1 is not covered by the frozen saddle belt 11 Left end.

The pump 144 is arranged on the water inlet pipe 142; the ice water produced by the ice maker 141 is first sent by the pump 144 into the water inlet pipe 141 and then into the section of the water pipe P covered by the frozen saddle belt 11, so that the ice water and The water in the water pipe P mixes, and the temperature of the water in the water pipe P is lowered. There is no limitation on the connection mode of the water inlet pipe 142, the water outlet pipe 143 and the water pipe P. For example, if the water pipe P originally has a reserved hole, one end of the water inlet pipe 142, the water outlet pipe 143 and the water pipe P can be connected via the reserved hole, or if the water pipe P does not have a reserved hole, drill on the water pipe P As for the method of drilling, the "continuous hydraulic method" can be adopted. For example, the applicant filed a patent application on October 22, 2003, and the application number was 102205364, and obtained a patent on November 11, 2012. The announcement number is M459335, and the patent name is "Uninterrupted Water Device". The "Uninterrupted Water Device" belongs to the "Uninterrupted Water Method".

It must be noted that before the pump 144 sends the ice water produced by the ice water maker 141 into the water pipe P, it must be confirmed that the water in the water pipe P remains stationary so that the ice water will not be taken away by the water in the water pipe P And affect the cooling effect.

After drilling the water pipe P and installing the check valve, the water inlet pipe 142 and the water outlet pipe 143 can be connected to the water pipe P. As for the connection part of the water inlet pipe 142, the water outlet pipe 143 and the water pipe P, the form of the connecting column 111 can also be used, but it is not limited to this.

As mentioned earlier, the temperature of the water in the water pipe P is about 15°C to 35°C, and the temperature of the ice water is about 5°C to 10°C. By mixing the ice water with the water in the water pipe P, the temperature in the water pipe P can be reduced. The temperature of the water. The mixed water formed by mixing the ice water with the water in the water pipe P flows back into the ice maker 141 from the outlet pipe 143, and the ice maker 141 reduces the temperature of the mixed water to about 5℃~10℃ ice After the water, the pump 144 sends the ice water into the water inlet pipe 142. After such a cycle of several times, the temperature of the water in the water pipe P can be reduced to about 10°C~12°C.

In order to monitor the above temperature more accurately, a temperature sensor 145, 146 can be respectively provided on the inlet pipe 142 and the outlet pipe 143 to sense the temperature of the ice water in the inlet pipe 142 and the outlet pipe 143 respectively. The temperature of the mixed water.

Then, the user can first keep the water pressure of the water pipe P at about 1 kg/cm ² in the first time interval; preferably, the first time interval may be about 1 to 5 minutes; more preferably, this first time interval The time interval may be about 3 minutes.

Next, the user can continue to freeze the water pipe P in the second time interval through the liquid nitrogen freezing device 12, so that the surface temperature of the frozen saddle belt 11 is maintained at the first temperature in the second time interval; preferably, the first temperature The temperature may be about -25°C to -70°C; preferably, the second time interval is about 0.5 to 1.5 hours; more preferably, the second time interval is about 1 hour.

At the same time, the user can keep the temperature of the two ends of the water pipe P not covered by the frozen saddle belt 11 at the second temperature during the second time interval; preferably, the second temperature can be about -30°C~-50 ℃; In addition, the user can make the two ends of the water pipe P not covered by the frozen saddle belt 11 respectively produce about 5-7 centimeters (cm) of frost in the second time interval.

Then, the user can confirm that there is no water pressure at the end of the water pipe P, and wait for the third time interval after emptying the water pipe P; preferably, the third time interval is about 5 to 15 minutes; more preferably, the third time interval is about 5-15 minutes; The three time intervals are approximately 10 minutes.

Finally, the user can perform the water pipe cutting operation to cut off the two ends of the water pipe P; after that, the user can perform subsequent construction operations.

It can be seen from the above that in this embodiment, the user adds ice water to the water pipe P to cool the water in the water pipe, and then maintains the water pressure of the water pipe P at a specific pressure, maintains the surface temperature of the frozen saddle belt 11 and the water pipe is not frozen The temperature of the two ends covered by the saddle belt 11 is at a specific temperature, a specific length of frost is generated at a specific location, and a specific waiting time for emptying, etc., innovative multiple steps to ensure that the water in the water pipe P is completely frozen, so It can improve the freezing efficiency and shorten the freezing time, and after the water pipe P is cut off, the water pipe P will not leak water to ensure that the continuous water operation can be carried out smoothly.

Please refer to FIG. 2, which is a flowchart of the first embodiment of the present invention. As shown in the figure, the freezing and water stopping method adopted in this embodiment may include the following steps:

Step S201: Cover the water pipe with a frozen saddle belt, and the temperature of the water in the water pipe is about 15°C to 35°C.

Step S202: Connect the liquid nitrogen freezing device to the freezing saddle belt.

Step S203: Connect an ice water equipment to the water pipe;

Step S204: Confirm that the water in the water pipe remains still.

Regarding how to control the water in the water pipe to remain stationary, those who belong to the technical field of the present invention should know the technology, and it is not limited to the method or structure used. The technical feature of the present invention is that before the ice water is injected into the water pipe, it must be ensured that the water in the water pipe is still. In addition, keep the water in the pipe still The time point for stopping is also not limited, and the operator can determine the actual situation. For example, the water in the water pipe can be controlled to remain stationary before or after any one of steps S201, S202, and S203 is performed.

Step S205: The ice water is injected into the water pipe by the ice water equipment, and the temperature of the ice water is about 5°C to 10°C, so that the temperature of the water in the water pipe is reduced to about 10°C to 12°C.

Step S206: Keep the water pressure of the water pipe at about 1 kg/cm ² in the first time interval.

Step S207: Continuously freeze the water pipe in the second time interval through the liquid nitrogen freezing device to keep the surface temperature of the frozen saddle belt at the first temperature, and keep the temperature of the two ends of the water pipe not covered by the frozen saddle belt at the second temperature , And make the two ends of the water pipe not covered by the frozen saddle belt to produce about 5-7 centimeters (cm) of frost respectively.

Step S208: Confirm that there is no water pressure in the drainage at the end of the water pipe.

Step S209: Wait for the third time interval after emptying the water pipe.

Step S210: Cut off the two ends of the water pipe that are not covered by the frozen saddle belt.

Of course, the above are only examples. The structure and steps of the device used in the freezing and water-stopping method of the present invention applied to continuous water operation can be changed according to actual needs, and the present invention is not limited to this.

Please refer to FIG. 3, which is a schematic diagram of the second embodiment of the freezing and water stopping device of the present invention. As shown in the figure, the freezing water stop device 1 may include a freezing saddle belt 11, a liquid nitrogen freezing device 12, and an ice water device 14. The frozen saddle belt 11 can cover the water pipe P; wherein, the frozen saddle belt 11 can include a connecting column 111 and can be connected to the liquid nitrogen freezing device 12 through the connecting pipe 112. The ice water equipment 14 is connected with the water pipe P to form a loop.

The above-mentioned elements are similar to the aforementioned embodiment in FIG. 1, so they will not be repeated here; the difference from the aforementioned embodiment is that the freezing and water-stopping device 1 may further include two blocking posts 13, which can be respectively disposed at the two ends of the water pipe P after being cut off. The two ends of the frozen saddle belt 11 are to prevent the frozen water in the water pipe P from slipping out; the blocking column 13 can be fixed to the frozen saddle belt 11 through various fixing methods (such as welding or screw locking), or through special The movable mechanism is movably arranged on the frozen saddle belt 11, so that it can be moved to the two ends of the frozen saddle belt 11 when needed to provide a blocking effect.

Please refer to FIG. 4, which is a flowchart of the second embodiment of the present invention. As shown in the figure, the freezing and water stopping method adopted in this embodiment may include the following steps:

Step S401: Cover the water pipe with a frozen saddle belt, and the temperature of the water in the water pipe is about 15°C to 35°C.

Step S402: Connect the liquid nitrogen freezing device to the freezing saddle belt.

Step S403: Connect an ice water equipment to the water pipe;

Step S404: Confirm that the water in the water pipe remains still;

Regarding how to control the water in the water pipe to remain stationary, those who belong to the technical field of the present invention should know the technology, and it is not limited to the method or structure used. The technical feature of the present invention is that before the ice water is injected into the water pipe, it must be ensured that the water in the water pipe is still. In addition, the time point for keeping the water in the water pipe stationary is not limited, and the operator can determine the actual situation. For example, the water in the water pipe can be controlled to keep stationary before or after any of steps S401, S402, and S403 are performed.

Step S405: The ice water is injected into the water pipe by the ice water equipment, and the temperature of the ice water is about 5°C to 10°C, so that the temperature of the water in the water pipe is reduced to about 10°C to 12°C.

Step S406: Keep the water pressure of the water pipe at about 1 kg/cm ² in the first time interval.

Step S407: Continuously freeze the water pipe in the second time interval through the liquid nitrogen freezing device to keep the surface temperature of the frozen saddle belt at the first temperature, and keep the temperature of the two ends of the water pipe not covered by the frozen saddle belt at the second temperature , And make the two ends of the water pipe not covered by the frozen saddle belt to produce about 5-7 centimeters (cm) of frost respectively.

Step S408: Confirm that there is no water pressure in the drainage at the end of the water pipe.

Step S409: Wait for the third time interval after emptying the water pipe.

Step S410: Cut off the two ends of the water pipe that are not covered by the frozen saddle belt.

Step S411: Set blocking posts at the two ends of the frozen saddle belt respectively.

Of course, the above are only examples. The structure and steps of the device used in the freezing and water-stopping method of the present invention applied to continuous water operation can be changed according to actual needs, and the present invention is not limited to this.

In summary, according to the embodiments of the present invention, the freezing and water stopping method can increase the freezing efficiency and shorten the freezing time by cooling the water in the water pipe.

The applicant’s actual sample verification shows that under the condition that the diameter of the water pipe is 200 mm (mm) and the water temperature is 30°C, it will take about 4 hours to make the water pipe without injecting ice water at 5°C to 10°C. The water inside is completely frozen; however, when the diameter of the water pipe is 200 mm (mm) and the water temperature is 30°C, when ice water at 5°C~10°C is injected to reduce the water temperature to 12°C, it will be approximately The water in the water pipe can be completely frozen in 1 hour.

In addition, under the conditions of a pipe diameter of 13 mm (mm) and a water temperature of 27°C, inject ice water at 5°C to 10°C in about 15 minutes to completely freeze the water in the pipe; Under the conditions of a diameter of 13 mm (mm) and a water temperature of 12°C, inject ice water at 5°C to 10°C, and the water in the pipe can be completely frozen in about 9 minutes.

The above experiments verify that this case is suitable for water pipes with different pipe diameters and different water temperatures, and has a substantial increase in efficiency.

In addition, according to the embodiment of the present invention, the freezing and water-stopping method can ensure that the water pressure in the water pipe is maintained at a specific pressure, the surface temperature of the frozen saddle belt is maintained at a specific temperature, and a specific length of frost is generated. The water has been completely frozen, so the water pipe will not leak after the water pipe is cut to ensure that the continuous water operation can be carried out smoothly.

In addition, according to the embodiment of the present invention, the freezing and water-stopping method can separately install blocking columns at the two ends of the frozen saddle after the water pipe is cut, so that the frozen water in the water pipe will not slide out in one piece, so that the continuous water operation is more effective. efficient.

It can be seen that the present invention has indeed achieved the desired enhancement effect under the breakthrough of the previous technology, and it is not easy to think about by those who are familiar with the art. Its progressiveness and practicability have clearly met the requirements of patent application. Yan has filed a patent application in accordance with the law, and I implore your office to approve this invention patent application to encourage creativity and make it easy.

The above descriptions are merely illustrative and not restrictive. Any other equivalent modifications or changes that do not depart from the spirit and scope of the present invention should be included in the scope of the appended patent application.

S201~S210: Step flow

Claims (9)

A method of freezing and stopping water, comprising the following steps: Coating a water pipe with a frozen saddle belt, the temperature of the water in the water pipe is about 15°C~35°C; Connecting a liquid nitrogen freezing device to the freezing saddle belt ; Connect an ice water equipment to the water pipe; confirm that the water in the water pipe remains stationary; the ice water equipment will inject ice water into the water pipe. The temperature of the ice water is about 5°C~10°C, so that the water The temperature of the water in the water pipe drops to about 10°C~12°C; the water pressure of the water pipe is maintained at about 1kg/cm ² in a first time interval, and the first time interval is about 1 to 5 minutes ; Continuously freezing the water pipe in a second time interval through the liquid nitrogen freezing device, so that the surface temperature of the frozen saddle belt is maintained at a first temperature, and the temperature of the two ends of the water pipe not covered by the frozen saddle belt is at The second time interval is maintained at a second temperature, and the two ends of the water pipe that are not covered by the frozen saddle belt respectively produce about 5-7 cm of frost, wherein the second time interval is about 0.5-1.5 For hours, the first temperature is about -25°C to -70°C, and the second temperature is about -30°C to -50°C; and the two ends of the water pipe that are not covered by the frozen saddle are cut off. For example, the freezing and stopping water method of claim 1, wherein the ice water equipment includes: An ice water maker for making the ice water; A water inlet pipe, the opposite ends of which are respectively connected to the ice maker and one of the two ends of the water pipe that is not covered by the freezing saddle; A water outlet pipe, the opposite ends of which are respectively connected to the ice maker and the other end of the two ends of the water pipe that are not covered by the freezing saddle; A pump is installed on the water inlet pipe; The ice water produced by the ice water maker is sent by the pump into the water inlet pipe and the section of the water pipe covered by the frozen saddle in sequence, so that the ice water is mixed with the water in the water pipe, The temperature of the water in the water pipe is lowered, and the mixed water formed by mixing the ice water and the water in the water pipe flows back into the ice water maker through the outlet pipe, and the ice water maker changes the temperature of the mixed water After the ice water is reduced to about 5°C~10°C, the ice water is fed into the water inlet pipe by the pump until the temperature of the water in the water pipe drops to about 10°C~12°C . Such as the freezing and water stopping method of claim 2, wherein the water inlet pipe and the water outlet pipe are respectively provided with a temperature sensor to respectively sense the temperature of the ice water in the water inlet pipe and the mixing in the water outlet pipe The temperature of the water. Such as the freezing and stopping method of claim 1, wherein the water pressure of the ice water equipment is greater than the water pressure of the water pipe. Such as the freezing and water stopping method of claim 1, wherein the water pressure of the ice water equipment is in the range of greater than 1 kg/cm ² to 8 kg/cm ² . For example, the freezing water stop method of claim 1, wherein the step of cutting off the two ends of the water pipe that is not covered by the freezing saddle strap further includes the following steps: Make sure that there is no water pressure in the end of the water pipe. For example, the freezing water stop method of claim 6, wherein the step of cutting off the two ends of the water pipe that is not covered by the freezing saddle strap further includes the following steps: Wait for a third time interval after emptying the water pipe. Such as the freezing and water stopping method of claim 7, wherein the third time interval is about 5-15 minutes. For example, the freezing water stop method of claim 1, wherein the step of cutting off the two ends of the water pipe that is not covered by the freezing saddle strap further includes the following steps: A blocking column is respectively arranged at the two ends of the frozen saddle belt.

Images