阅读说明：本技术 一种玻璃锡槽的冷却系统 (Cooling system of glass tin bath ) 是由 李青 李赫然 侯小军 陈英 郭志胜 张克检 丁奥林 吴军 葛怀敏 于 2021-09-22 设计创作，主要内容包括：本公开涉及一种玻璃锡槽的冷却系统,该冷却系统包括控制器、喷淋流路、第一供水流路、第二供水流路、第一电磁阀、第二电磁阀、喷淋装置、第一水源以及第二水源,喷淋装置设置在喷淋流路上,喷淋装置用于向玻璃锡槽喷射冷却水,第一电磁阀以及第二电磁阀均与控制器连接；其中,第一供水流路和第二供水流路均与喷淋流路连通,第一供水流路的第一端与第一电磁阀的出口连通,第一电磁阀的入口用于与第一水源连通,第二供水流路的第一端与第二电磁阀的出口连通,第二电磁阀的入口用于与第二水源连通；控制器用于控制第一电磁阀以及第二电磁阀的开启和关闭。本公开可提高玻璃生产的安全性。(The cooling system comprises a controller, a spraying flow path, a first water supply flow path, a second water supply flow path, a first electromagnetic valve, a second electromagnetic valve, a spraying device, a first water source and a second water source, wherein the spraying device is arranged on the spraying flow path and is used for spraying cooling water to the glass tin bath; the first water supply flow path and the second water supply flow path are both communicated with the spraying flow path, the first end of the first water supply flow path is communicated with the outlet of the first electromagnetic valve, the inlet of the first electromagnetic valve is used for being communicated with a first water source, the first end of the second water supply flow path is communicated with the outlet of the second electromagnetic valve, and the inlet of the second electromagnetic valve is used for being communicated with a second water source; the controller is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve. The present disclosure can improve safety in glass production.)

1. The cooling system of the glass tin bath is characterized by comprising a controller, a spraying flow path, a first water supply flow path, a second water supply flow path, a first electromagnetic valve, a second electromagnetic valve, a spraying device, a first water source and a second water source, wherein the spraying device is arranged on the spraying flow path and used for spraying cooling water to the glass tin bath, and the first electromagnetic valve and the second electromagnetic valve are connected with the controller;

the first water supply flow path and the second water supply flow path are both communicated with the spraying flow path, the first end of the first water supply flow path is communicated with the outlet of the first electromagnetic valve, the inlet of the first electromagnetic valve is used for being communicated with the first water source, the first end of the second water supply flow path is communicated with the outlet of the second electromagnetic valve, and the inlet of the second electromagnetic valve is used for being communicated with the second water source;

the controller is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve.

2. The cooling system according to claim 1, further comprising a communication flow path connected between the first water supply flow path and the second water supply flow path, a first check valve connected on the first water supply flow path, and a position of the first check valve on the first water supply flow path is between an outlet of the first water source and a connection position of the communication flow path and the first water supply flow path, and a second check valve connected on the second water supply flow path, and a position of the second check valve on the second water supply flow path is between an outlet of the second water source and a connection position of the communication flow path and the second water supply flow path.

3. The cooling system according to claim 2, wherein the spray flow path is plural, and a part of the plural spray flow paths is bypassed on the first water supply flow path and another part of the plural spray flow paths is bypassed on the second water supply flow path.

4. The cooling system according to claim 3, wherein the communication flow path includes a first communication flow path and a second communication flow path, a first end of the first communication flow path is connected to the outlet of the first check valve, a second end of the first communication flow path is connected to the outlet of the second check valve, a first end of the second communication flow path is connected to the second end of the first water supply flow path, a second end of the second communication flow path is connected to the second end of the second water supply flow path, and each of the plurality of shower flow paths is bypassed between the first end and the second end of the first water supply flow path or the second end of the second water supply flow path.

5. The cooling system according to claim 2, wherein a pressure sensor is provided on the communication path, and the pressure sensor is connected to the controller;

the controller is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve according to the pressure value detected by the pressure sensor.

6. The cooling system according to any one of claims 1 to 5, further comprising a temperature sensor disposed at the glass tin bath, the temperature sensor being connected to the controller;

the controller is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve according to the temperature value detected by the temperature sensor.

7. The cooling system according to any one of claims 1 to 5, wherein a flow regulating valve is provided on the shower flow path, the flow regulating valve being provided upstream of the shower device for regulating the flow rate of the cooling water on the shower flow path.

8. The cooling system, as set forth in claim 7, wherein the flow regulating valve is a manual butterfly valve.

9. The cooling system according to any one of claims 1 to 5, wherein the size of the pipe diameter of the spray flow path positively correlates with the number of spray devices on the spray flow path.

10. The cooling system of any one of claims 1-5, wherein the first water source is a fire water supply and the second water source is a tap water supply.

Technical Field

The present disclosure relates to glass production technology, and more particularly, to a cooling system for a glass tin bath.

Background

The float glass plate method is a production process for manufacturing flat glass, which is called float process for short. The forming process for float glass production is carried out in a tin bath into which a protective gas is introduced. When the cover plate glass is produced by the float process, the tin bath is used as a key glass forming device, the maximum temperature of about 80-100 tons of tin liquor in the whole tin bath is about 1000 ℃, and in order to ensure the safety of a steel structure, the steel structure at the bottom of the bath is required to be continuously cooled after the tin bath is automatically put into operation, so that the temperature of the bottom of the bath is controlled below 120 ℃.

In the related art, the bottom of a tin bath is cooled mainly by adopting an air cooling mode, particularly, a high-power fan is used for cooling the glass tin bath through an air nozzle, generally speaking, in order to ensure safety, the cooling mode can be provided with one fan for use and one fan for standby, and the temperature of the bottom of the tin bath is ensured to be controlled below 120 ℃.

However, once a power failure accident occurs or two fans are out of order at the same time, the temperature of the steel structure of the tin bath will rise rapidly, great damage will be caused to the steel structure, serious accidents such as tin leakage at the bottom of the bath may be caused, and the safety cannot be guaranteed.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a cooling system for a glass tin bath.

According to the cooling system of the glass tin bath, the cooling system comprises a controller, a spraying flow path, a first water supply flow path, a second water supply flow path, a first electromagnetic valve, a second electromagnetic valve, a spraying device, a first water source and a second water source, wherein the spraying device is arranged on the spraying flow path and used for spraying cooling water to the glass tin bath, and the first electromagnetic valve and the second electromagnetic valve are connected with the controller;

the first water supply flow path and the second water supply flow path are both communicated with the spraying flow path, the first end of the first water supply flow path is communicated with the outlet of the first electromagnetic valve, the inlet of the first electromagnetic valve is used for being communicated with the first water source, the first end of the second water supply flow path is communicated with the outlet of the second electromagnetic valve, and the inlet of the second electromagnetic valve is used for being communicated with the second water source;

the controller is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve.

Optionally, the cooling system further includes a communication flow path, a first check valve and a second check valve, the communication flow path is connected between the first water supply flow path and the second water supply flow path, the first check valve is connected on the first water supply flow path, and the first check valve is located at a position on the first water supply flow path between the outlet of the first water source and the communication flow path and the connection position of the first water supply flow path, the second check valve is connected on the second water supply flow path, and the second check valve is located at a position on the second water supply flow path between the outlet of the second water source and the connection position of the communication flow path and the second water supply flow path.

Optionally, the number of the spraying flow paths is multiple, one part of the spraying flow paths is connected to the first water supply flow path, and the other part of the spraying flow paths is connected to the second water supply flow path.

Optionally, the communication flow path includes a first communication flow path and a second communication flow path, a first end of the first communication flow path is connected to the outlet of the first check valve, a second end of the first communication flow path is connected to the outlet of the second check valve, a first end of the second communication flow path is connected to the second end of the first water supply flow path, a second end of the second communication flow path is connected to the second end of the second water supply flow path, and each of the plurality of spraying flow paths is connected between the first end and the second end of the first water supply flow path or between the first end and the second end of the second water supply flow path.

Optionally, a pressure sensor is arranged on the connecting flow path, and the pressure sensor is connected with the controller;

the controller is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve according to the pressure value detected by the pressure sensor.

Optionally, the cooling system further comprises a temperature sensor, the temperature sensor is arranged at the glass tin bath, and the temperature sensor is connected with the controller;

the controller is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve according to the temperature value detected by the temperature sensor.

Optionally, a flow regulating valve is arranged on the spraying flow path, and the flow regulating valve is arranged at the upstream of the spraying device and used for regulating the flow of the cooling water on the spraying flow path.

Optionally, the flow control valve is a manual butterfly valve.

Optionally, the pipe diameter of the spraying flow path is positively correlated to the number of spraying devices on the spraying flow path.

Optionally, the first water source is fire water supply equipment, and the second water source is tap water supply equipment.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the cooling system of the glass tin bath is formed by a controller, a spraying flow path, a first water supply flow path, a second water supply flow path, a first electromagnetic valve, a second electromagnetic valve, a spraying device, a first water source and a second water source, wherein the first water supply flow path and the second water supply flow path are communicated with the spraying flow path, the first end of the first water supply flow path is communicated with the outlet of the first electromagnetic valve, the inlet of the first electromagnetic valve is used for being communicated with the first water source, the first end of the second water supply flow path is communicated with the outlet of the second electromagnetic valve, and the inlet of the second electromagnetic valve is used for being communicated with the second water source. The first electromagnetic valve and the second electromagnetic valve are both connected with the controller. When the cooling fan can not work normally, the controller can control the cooling system to automatically carry out emergency water cooling on the glass tin bath. The controller can control the cooling system to enter a first working mode, namely the controller controls the first electromagnetic valve to be opened and the second electromagnetic valve to be closed, and at the moment, the cooling system can spray cooling water to the glass tin bath through the first water source. When the water supply water pressure that first water source appears was not enough, the controller can control cooling system and switch to the second mode from first mode, controls the second solenoid valve promptly and opens, first solenoid valve is closed to use the second water source to spray cooling water to the glass molten tin bath, thereby carrying out refrigerated in-process through cooling system to the glass molten tin bath, remain water supply water pressure's stability throughout, and then ensured the security of glass molten tin bath when using.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram illustrating a cooling system for a glass tin bath in accordance with an exemplary embodiment.

FIG. 2 is a schematic illustrating a flow direction of water from a first water source when the cooling system is in a first mode of operation, according to an exemplary embodiment.

FIG. 3 is a circuit schematic of a cooling system shown in accordance with an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

In the glass production process, a tin bath steel structure (hereinafter referred to as a tin bath or a glass tin bath) is an important thermal device in the glass production process and is a glass forming area. The biggest difference between the tin bath and the thermal equipment such as the kiln and the annealing kiln is that tin liquid which is easy to oxidize at high temperature is contained in the tin bath, so that the space of the tin bath is also filled with protective gas for preventing the tin liquid from oxidizing. In order to ensure the safety of the molten tin bath steel structure, the molten tin bath steel structure needs to continuously cool the steel structure at the bottom of the bath when in use.

Exemplarily, among the related art, have and adopt the fan to carry out the scheme of cooling to the molten tin bath steel construction, but this scheme receives power supply and fan operating condition's influence easily, in case power failure or the fan breaks down unable normal work, then can't effectively cool off the molten tin bath steel construction, and then probably cause the tank bottom to leak major accident such as tin.

In the related art, for example, besides a scheme of cooling a molten tin bath steel structure by using a high-power fan, a scheme of cooling the bottom of a molten tin bath by spraying by using a spraying system is provided.

However, the scheme of spray cooling the bottom of the tin bath through the spray system is affected by the water supply pressure, and when the water supply pressure is insufficient, the spray system cannot effectively cool the bottom of the tin bath with high temperature.

To above-mentioned problem, the embodiment of this disclosure provides a cooling system of glass molten tin bath, can be through setting up the pipeline subassembly at two water supply sources and two water supply sources of adaptation, can in time switch to another water supply source when the water pressure at a water source is not enough and supply water to guarantee water supply water pressure stability, thereby realize the effective cooling to the glass molten tin bath, guaranteed the security of glass molten tin bath when using.

FIG. 1 is a schematic diagram illustrating a cooling system for a glass tin bath in accordance with an exemplary embodiment. As shown in FIG. 1, the cooling system 100 for a glass-melting tank (hereinafter referred to as cooling system 100) includes: a controller (not shown in the figure), a spraying flow path 101, a first water supply flow path 102, a second water supply flow path 103, a first electromagnetic valve 104, a second electromagnetic valve 105, a spraying device 106, a first water source 107 and a second water source 108, wherein the spraying device 106 is arranged on the spraying flow path 101, and the spraying device 106 is used for spraying cooling water to the glass tin bath.

The first water supply flow path 102 and the second water supply flow path 103 are both communicated with the spraying flow path 101, a first end of the first water supply flow path 102 is communicated with an outlet of a first electromagnetic valve 104, an inlet of the first electromagnetic valve 104 is used for being communicated with a first water source 107, a first end of the second water supply flow path 103 is communicated with an outlet of a second electromagnetic valve 105, and an inlet of the second electromagnetic valve 105 is used for being communicated with a second water source 108.

The cooling system 100 has a first operating mode in which the controller controls the first solenoid valve 104 to be opened and the second solenoid valve 105 to be closed, and a second operating mode in which the controller controls the first solenoid valve 104 to be closed and the second solenoid valve 105 to be opened.

In practical application, for example, the spraying flow path 101 may be located below the glass tin bath, a plane formed by the spraying flow path 101 is parallel to the bottom surface of the glass tin bath, the spraying device 106 on the spraying flow path 101 is a plurality of spraying heads, and the plurality of spraying heads may be located below the glass tin bath, so that a spraying area formed by the plurality of spraying heads during spraying can cover the bottom surface of the glass tin bath. Optionally, a plurality of spray heads may be positioned around the glass tin bath, such that a spray region formed by the plurality of spray heads during spraying may cover an outer surface of the glass tin bath.

When the cooling system 100 cools the glass tin bath, the cooling system can preferentially enter a first working mode, in the first working mode, the first electromagnetic valve 104 of the cooling system 100 is opened, the second electromagnetic valve 105 is closed, at the moment, the water flow of the second water source 108 is stopped by the second electromagnetic valve 105, the water flow provided by the first water source 107 enters the first water supply flow path 102 through the first electromagnetic valve 104 and then enters the spraying flow path 101 through the first water supply flow path 102, and finally the water flow is sprayed out through the spraying device 106 arranged on the spraying flow path 101 to spray and cool the glass tin bath. If the water supply pressure of the first water source 107 is found to be insufficient, the first electromagnetic valve 104 can be closed, the second electromagnetic valve 105 can be opened, the cooling system 100 enters the second working mode, at the moment, the water flow of the first water source 107 is stopped by the first electromagnetic valve 104, the water flow provided by the second water source 108 enters the second water supply flow path 103 through the second electromagnetic valve 105, then enters the spraying flow path 101 through the second water supply flow path 103, and finally the water flow is sprayed out through a spraying device 106 arranged on the spraying flow path 101, so that the glass tin bath is sprayed and cooled.

Alternatively, the controller may automatically control the first solenoid valve 104 and the second solenoid valve 105 according to a preset trigger condition, so as to switch the first operation mode and the second operation mode. For example, when it is detected that the water pressure of the water supplied to the flow path of the cooling system 100 is less than the water pressure threshold value, the second solenoid valve 104 is controlled to be opened and the first solenoid valve 105 is controlled to be closed, so as to control the cooling system 100 to switch from the first operation mode to the second operation mode.

In this embodiment, it can be seen that, a cooling system 100 for a glass tin bath is formed by a controller, a spraying flow path 101, a first water supply flow path 102, a second water supply flow path 103, a first electromagnetic valve 104, a second electromagnetic valve 105, a spraying device 106, a first water source 107 and a second water source 108, wherein the first water supply flow path 102 and the second water supply flow path 103 are both communicated with the spraying flow path 101, a first end of the first water supply flow path 102 is communicated with an outlet of the first electromagnetic valve 104, an inlet of the first electromagnetic valve 104 is used for being communicated with the first water source 107, a first end of the second water supply flow path 103 is communicated with an outlet of the second electromagnetic valve 105, and an inlet of the second electromagnetic valve 105 is used for being communicated with the second water source 108. When the cooling fan cannot work normally, the controller can automatically control the cooling system 100 to carry out emergency water cooling on the glass tin bath. When the controller controls the cooling system 100 to enter the first working mode, the first electromagnetic valve 104 is opened, the second electromagnetic valve 105 is closed, and the cooling system 100 can spray cooling water to the glass tin bath through the first water source 107. When the water supply pressure of the first water source 107 is insufficient, the controller can control the cooling system 100 to switch from the first working mode to the second working mode, that is, the second solenoid valve 105 is opened and the first solenoid valve 104 is closed, so as to spray cooling water to the glass tin bath by using the second water source 108, thereby always keeping the stability of the water supply pressure in the process of cooling the glass tin bath by the cooling system 100, and further ensuring the safety of the glass tin bath during working. In addition, the cooling system 100 has a simple structure and low cost, and the switching operation of the two water sources is very simple and convenient, so that the popularization is facilitated.

In some embodiments, referring to fig. 1 again, the cooling system 100 further includes a communication flow path 109, a first check valve 141, and a second check valve 151, the communication flow path 109 is connected between the first water supply flow path 102 and the second water supply flow path 103, the first check valve 141 is connected to the first water supply flow path 102, a position of the first check valve 141 on the first water supply flow path 102 is between an outlet of the first water source 107 and a connection position of the communication flow path 109 and the first water supply flow path 102, the second check valve 151 is connected to the second water supply flow path 103, and a position of the second check valve 151 on the second water supply flow path 103 is between an outlet of the second water source 108 and a connection position of the communication flow path 109 and the second water supply flow path 103.

In practice, when the cooling system 100 is in the first mode of operation, as shown in FIG. 2, water from the first water source 107 may enter the first water supply flow path 102 and the communication flow path 109 through the first solenoid valve 104 and the first check valve 141. The water flow entering the first water supply passage 102 may further enter the shower passage 101 communicating with the first water supply passage 102 and be discharged through the shower device 106 provided in the shower passage 101. The water flow entering the communication flow path 109 can enter the second water supply flow path 103, further flow into the shower flow path 101 communicating with the second water supply flow path 103, and be discharged through the shower device 106 provided on the shower flow path 101.

Accordingly, when the cooling system 100 is in the second operation mode, the water flow of the second water source 108 may enter the second water supply flow path 103 and the communication flow path 109 through the second solenoid valve 105 and the second check valve 151. The water flow entering the second water supply passage 103 may further enter the shower passage 101 communicating with the second water supply passage 103, and may be discharged through the shower device 106 provided in the shower passage 101. The water flow entering the communication flow path 109 can enter the first water supply flow path 102, further flow into the shower flow path 101 communicating with the first water supply flow path 102, and be discharged through the shower device 106 provided on the shower flow path 101.

As can be seen, in the present embodiment, by connecting the first water supply channel 102 and the second water supply channel 103 via the connecting channel 109, when water is supplied using one of the first water source 107 and the second water source 108, the glass tin bath can be cooled using both the shower device 106 on the shower channel 101 connected to the first water supply channel 102 and the shower device 106 on the shower channel 101 connected to the second water supply channel 103, so that the cooling area is increased, and the cooling effect is improved. And compare in and set up two independent water supply pipeline systems respectively for two water sources, this embodiment can let one set of pipeline of two water sources sharing, has simplified the structure of pipeline, has reduced the pipeline cost.

In the present embodiment, the first check valve 141 is connected to the first water supply flow path 102, and the position of the first check valve 141 on the first water supply flow path 102 is located between the outlet of the first water source 107 and the connection position between the communication flow path 109 and the first water supply flow path 102. The second check valve 151 is connected to the second water supply flow path 103, and the position of the second check valve 151 on the second water supply flow path 103 is located between the outlet of the second water source 108 and the connection position of the communication flow path 109 and the second water supply flow path 103, so that the situation that the first water source 107 and the second water source 108 have back pressure backflow in the process of switching the working mode of the cooling system 100 can be effectively prevented, and the working stability of the cooling system is ensured.

In some embodiments, the diameter of the spray flow path 101 is positively correlated to the number of spray devices 106 on the spray flow path 101.

For example, when the pipe diameter of the spraying flow path 101 is DN80, a maximum of 32 spraying devices 106 can be disposed on the spraying flow path 101. Wherein the spray device 106 may be a high pressure spray header.

Considering that the pipe diameter of the spraying flow path 101 determines the water flow rate in the spraying flow path 101, and the water flow rate of the spraying flow path 101 affects whether the spraying devices 106 on the spraying flow path 101 can work normally, the larger the number of the spraying devices 106 is, the more water flow rate water supply is needed, in the embodiment, the pipe diameter size of the spraying flow path 101 is positively correlated with the number of the spraying devices 106 on the spraying flow path 101, and each spraying device 106 on the spraying flow path 101 can be ensured to work stably and effectively.

Optionally, the pipe diameter of the first water supply flow path 102 may be determined according to the number and pipe diameter of the spraying flow paths 101 communicated therewith, wherein the pipe diameter of the first water supply flow path 102 may be positively correlated to both the number and pipe diameter of the spraying flow paths 101. Thereby ensuring that each spray flow path 101 has sufficient water flow.

In some embodiments, the first water source 107 is a fire water supply and the second water source 108 is a tap water supply.

Wherein, the water supply pressure of the fire water supply equipment is greater than the water supply pressure of the tap water supply equipment. The cooling system 100 may preferably use fire water supply equipment to cool the glass tin bath.

In practical application, when cooling blower breaks down, can the preference select the great and higher fire water supply equipment of water pressure stability of water pressure to supply water. When the fire water supply equipment fails and cannot be used normally, or when the water pressure is insufficient, the cooling system 100 can be switched from the fire water supply equipment to the tap water supply equipment for water supply.

In one embodiment, the number of the shower flow paths 101 is plural, and a part of the shower flow paths 101 of the plural shower flow paths 101 is bypassed by the first water supply flow path 102, and another part of the shower flow paths 101 is bypassed by the second water supply flow path 103.

For example, referring again to fig. 1, the number of the shower flow paths 101 bypassing the first water supply flow path 102 may be the same as the number of the shower flow paths 101 bypassing the second water supply flow path 103. The first water supply flow path 102 and the second water supply flow path 103 may be parallel to each other, and every two spray flow paths 101 of the plurality of spray flow paths 101 may be parallel to each other. Alternatively, a plurality of spray devices 106 may be disposed on each spray flow path 101, and the intervals between every two adjacent spray devices 106 in the plurality of spray devices 106 on one spray flow path 101 are the same.

In some embodiments, a flow regulating valve 111 is disposed on the spray flow path 101, and the flow regulating valve 111 is disposed upstream of the spray device 106 for regulating the flow rate of the cooling water on the spray flow path 101.

For example, referring to fig. 1 again, taking the first water supply flow path 102 as an example, the flow control valve 111 may be disposed between a first position and a second position on the spray flow path 101, wherein the first position is located on the spray flow path 101 at a position of the spray device 106 closest to the first water supply flow path 102, and the second position is located at a position of a connection point of the spray flow path 101 and the first water supply flow path 102.

In some embodiments, the flow regulating valve 111 is a manual butterfly valve.

In practical applications, a user can adjust the water flow rate in the spray flow path 101 by rotating a manual butterfly valve provided in the spray flow path 101.

Optionally, the flow regulating valve 111 may also be an electric flow valve, and the electric flow valve may automatically adjust the water flow rate on the spray flow path 101 according to some triggering conditions, for example, when the water flow rate in the spray flow path 101 is detected to exceed a water flow rate threshold value, the electric flow valve may automatically reduce the water flow rate in the spray flow path 101, and for example, when the water pressure on the flow path pipeline in the spray flow path 101 is detected to be less than a pressure threshold value, the electric flow valve may automatically increase the water flow rate in the spray flow path 101. Alternatively, the electric flow valve can be connected with a controller, and the controller controls the electric flow valve to perform the actions.

In one embodiment, the communication flow path 109 is provided with a pressure sensor 110.

In practical applications, the pressure sensor 110 on the communication flow path 109 may be connected to a controller of the cooling system 100, and the controller may determine the current water supply pressure of the cooling system 100, that is, the pipe network pressure, according to the pressure value collected by the pressure sensor 110, and switch the operation mode of the cooling system 100 when the water supply pressure is smaller than the pressure threshold.

Illustratively, the controller may automatically switch the cooling system 100 from the first mode of operation to the second mode of operation, for example, when the supply water pressure of the cooling system 100 in the first mode of operation is detected by the pressure sensor 110 to be less than 0.2Mpa, indicating that the supply water pressure has been insufficient.

In this embodiment, by providing the pressure sensor 110 on the communication flow path 109, not only the whole network management pressure of the cooling system 100 can be monitored in real time, but also the cooling system 100 can be automatically switched from the current working mode to other working modes in time when the network management pressure is lower than the pressure threshold, so as to ensure the stability of the water supply pressure of the cooling system 100, effectively reduce the risk in the glass production process, and avoid occurrence of major accidents.

As an embodiment, referring to fig. 1 again, the communication path 109 may include a first communication path 1091 and a second communication path 1092, a first end of the first communication path 1091 is connected to an outlet of the first check valve 141, a second end of the first communication path 1091 is connected to an outlet of the second check valve 151, a first end of the second communication path 1092 is connected to a second end of the first water supply path 102, a second end of the second communication path 1092 is connected to a second end of the second water supply path 103, and each of the plurality of spray paths 101 may be bypassed between the first end and the second end of the first water supply path 102 or the first end and the second end of the second water supply path 103.

In practical applications, the first communication path 1091 is used to communicate the first water supply path 102 with the second water supply path 103 near two water sources, and the second communication path 1092 is used to communicate the first water supply path 102 with the second water supply path 103 far from the water sources. When the water source supplies water to the first water supply flow path 102 and the second water supply flow path 103, the water source can fill the whole flow path with water more quickly, and spray cooling is performed, so that the working efficiency of the cooling system 100 is improved.

Optionally, the first communication channel 1091 and the second communication channel 1092 may be provided with pressure sensors 110, wherein the pressure sensors 110 on the first communication channel 1091 may be used to detect the water supply pressure near the water source in the pipe network of the cooling system 100, and the pressure sensors 110 on the second communication channel 1092 may be used to detect the water supply pressure far from the water source in the pipe network of the cooling system 100. In practical applications, the controller may determine the overall water pressure of the pipe network of the cooling system 100 by combining the detection data of the pressure sensor 110 on the first communication path 1091 and the detection data of the pressure sensor 110 on the second communication path 1092, for example, the controller may determine the overall water pressure of the pipe network by taking the average value of the detection data of the pressure sensor 110 on the first communication path 1091 and the detection data of the pressure sensor 110 on the second communication path 1092.

Considering that when the water source in the cooling system 100 supplies water, the water pressure of the flow path close to the water source is greater than the water pressure of the flow path far from the water source, in the present embodiment, the pressure sensors 110 are disposed on the first communication flow path 1091 and the second communication flow path 1092, so that the overall water pressure of the pipe network of the cooling system 100 can be calculated more accurately according to the water pressures measured at different positions, and the control accuracy of the cooling system 100 can be further improved.

In some embodiments, the cooling system 100 may further include a fan failure detection device, which may be electrically connected to the controller and may be used to detect whether the fan fails, for example, whether the fan is powered off, whether parameters such as power are normal, or the like. Wherein, the fan is used for carrying out the air cooling to the glass molten tin bath. Optionally, the fault detection device may be a voltage detection device, a power acquisition device, or the like having a data processing function.

In practical applications, when the controller detects a fan failure through the fan failure detection device, the first solenoid valve 104 may be controlled to be opened and the second solenoid valve 105 may be controlled to be closed, so as to enable the cooling system 100 to enter the first operation mode.

Optionally, the cooling system 100 may further include an alarm device, and when the controller detects that the fan is out of order through the fan failure detection device, the alarm device may be controlled to alarm to remind a user that the fan is out of order. Wherein, the alarm device can be an audible and visual alarm.

In some embodiments, the cooling system 100 further includes a temperature sensor disposed at the glass tin bath for detecting a temperature of the glass tin bath. The temperature sensor may be electrically connected to the controller. The controller may control the first solenoid valve 104 and the second solenoid valve 105 according to the temperature of the glass tin bath. For example, when the temperature is lower than a first temperature threshold (e.g., 100 degrees celsius), indicating that the temperature of the glass tin bath has fallen within a safe range, the controller may close the first solenoid valve 104 and the second solenoid valve 105, causing the cooling system 100 to stop supplying water. When the temperature is higher than the second temperature threshold (e.g., 120 degrees celsius), indicating that the temperature of the glass tin bath is too high, the controller may continue to open the first solenoid valve 104 or/and the second solenoid valve 105, so that the cooling system 100 performs spray cooling on the glass tin bath. Optionally, the first temperature threshold and the second temperature threshold may be set by a user, for example, the first temperature threshold may also be 90 degrees celsius.

In some embodiments, the cooling system 100 further includes an Uninterruptible Power Supply (UPS) for separately powering the cooling system 100. Since the power consumption of the devices such as the controller, the sensor, the solenoid valve, etc. in the cooling system 100 is only tens of watts, the normal operation of the cooling system 100 can be supported by supplying power through the UPS.

In the present embodiment, the cooling system 100 is independently powered by the UPS, so that the cooling system 100 is not affected by a power failure or a fault of a commercial power supply, and the operational stability of the cooling system 100 and the safety of the glass production process are further ensured.

FIG. 3 is a schematic circuit diagram illustrating a cooling system of the glass tin bath shown in FIG. 1 according to an exemplary embodiment.

As shown in fig. 3, the circuit of the cooling system may include a first main switch SB1 and a second main switch SS1, a fan detection switch SF1, a first switch KA1, a second switch KA2, a third switch KA3, a first switching valve YV1, a second switching valve YV2, a temperature sensor TC, and a pressure sensor switch PS.

The first end of the first main switch SB1 is connected with the power supply and the first end of the first auxiliary contactor of the first switch KA1, and the second end of the first main switch SB1 is connected with the first end of the second main switch SS 1. A second terminal of the second master switch SS1 is connected to a first terminal of a fan detection switch SF 1. Optionally, a fuse FU is further connected between the power supply and the first terminal of the first bus switch SB 1.

The second end of the fan detection switch SF1 is connected with the first end of the coil of the first switch KA1, wherein a second auxiliary contactor is further connected in parallel between the first end and the second end of the first switch KA 1.

The second ends of the coils of the first switch KA1 are connected to a power source and the first end of the third auxiliary contactor of the first switch KA1, respectively.

A second end of the first auxiliary contactor of the first switch KA1 is connected to a first end of the pressure sensor switch PS and a first end of the first auxiliary contactor of the second switch KA2, respectively.

A second end of the third auxiliary contactor of the first switch KA1 is connected to a first end of a coil of the second switch KA2 and a first end of the first switching valve YV1, respectively. Wherein a second end of the coil of the second switch KA2 is connected to a second end of the pressure sensor switch PS.

A second end of the first switching valve YV1 is connected with a first end of the first auxiliary contactor of the third switch KA3, and a second end of the first auxiliary contactor of the third switch KA3 is connected with a second end of the first auxiliary contactor of the second switch KA 2.

A first end of the second switching valve YV2 is connected to a first end of the first switching valve YV1 and a first end of the coil of the third switch KA3, respectively. A second end of the second switching valve YV2 is connected to a first end of a second auxiliary contactor of the third switch KA3, a second end of the second auxiliary contactor of the third switch KA3 is connected to a first end of a second auxiliary contactor of the second switch KA2, and a second end of the second auxiliary contactor of the second switch KA2 is connected to a second end of the first auxiliary contactor of the second switch KA2 and the temperature sensor TC, respectively.

The coil of the third switch KA3 is connected to a temperature sensor TC.

In some embodiments, the cooling system may have a workflow as follows:

cooling system open (SS1 and SB1 closed) → cooling system detects a fan stop signal such as two faults or power failure (SF1 closed, second auxiliary contactor of KA1 follows closed) → coil of KA1 follows second auxiliary contactor actuation of KA1, so that first auxiliary contactor of KA1 and third auxiliary contactor of KA1 are closed → when pressure sensor PS detects a pressure less than a preset value, coil actuation of KA2 so that first auxiliary contactor and second auxiliary contactor of KA2 are closed → when temperature sensor TC detects a temperature greater than a preset temperature, coil of KA3 follows detection result actuation of temperature sensor TC → when coil of KA3 is actuated, first auxiliary contactor and second auxiliary contactor of KA3 are closed. When the first auxiliary contactor of KA2 and the first auxiliary contactor of KA3 are simultaneously closed, the first switching valve YV1 is opened and the fire water supply apparatus starts supplying water.

When the second auxiliary contactor of KA2 and the second auxiliary contactor of KA3 are simultaneously closed, the second switching valve YV2 is opened and the water supply of the tap water supply apparatus is started. Thereby can make cooling system break down, the temperature surpasss when presetting the temperature, water pressure and is less than when presetting water pressure, control first ooff valve and second ooff valve and open simultaneously, use fire water supply equipment and running water supply equipment to supply water simultaneously.

It can be seen that the cooling system provided by the present embodiment has the following advantages: the instrument, the detection element, the control element and the like of the cooling system are connected with the UPS and are not influenced by power failure; the water supply source is automatically switched, fire water can be preferentially used for supplying water when power is cut off, the pipeline is provided with a pressure sensor, and when the pressure of a detected pipe network is lower than 2MPa, the water supply is automatically switched to tap water for supplying water, so that the water supply safety is ensured; the pipe diameters of the flow paths in the cooling system are set according to the number of the spraying devices, so that the stable work of the spraying devices can be ensured; the bottom of the glass tin bath is provided with a temperature sensor, such as a thermal resistor, the water supply electromagnetic valve is disconnected when the temperature is lower than 90 ℃, and the water supply electromagnetic valve is opened for spray cooling when the temperature reaches 120 ℃, so that the glass tin bath is always in a safe temperature. Therefore, an effective, safe and feasible countermeasure is provided for sudden accidents or long-time power failure in the production of cover plate glass, the damage risk of core equipment is effectively reduced, and major accidents are avoided.