Water-cooled structure of rotary valve, water-cooling system, rotary valve and water-cooling control method

Abstract

This invention belongs to the field of material conveying technology, and particularly relates to a water-cooling structure, water-cooling system, rotary valve, and water-cooling control method for a rotary valve. The water-cooling structure of the rotary valve includes 13 cooling water channels, of which one channel is provided inside the drive shaft; one channel is provided for the working side flange and one for the drive side flange, respectively; one channel is provided for the working side stuffing box and one for the drive side stuffing box, respectively; and eight channels are distributed within the rotary valve housing. This invention optimizes the water-cooling structure by implementing a reasonable multi-zoned cooling water channel design, avoiding problems such as cooling dead zones and high cooling water resistance caused by unreasonable water channel zoning, thus improving cooling efficiency and high-temperature resistance, and consequently enhancing the reliability of the rotary valve.

Description

Technical Field

[0001] This invention belongs to the field of material conveying technology, and in particular relates to a water-cooled structure, water-cooling system, rotary valve, and water-cooling control method for a rotary valve. Background Technology

[0002] In material handling processes across numerous industries such as metallurgy, cement, and mining, valves are frequently used to quantitatively convey materials to meet production process requirements. Rotary valves are among the most widely used quantitative conveying valves on the market. Also known as rotary feeders, rotary valves are applied in conveying systems for solid materials (such as powders, granules, and mixtures of powders and granules).

[0003] With the upgrading of production processes, some production lines are required to operate under high temperature, high pressure, and flammable gas conditions. The materials used in these production lines not only have high temperatures (above 600℃, and in some lines above 1000℃), but also cannot directly contact air or other oxidizing gases. This necessitates that the rotary valves on the production line not only withstand high temperatures and pressures, but also possess safe and reliable performance, and that any abnormalities must be responded to and handled quickly.

[0004] Existing rotary valves designed for high-temperature applications are mostly divided into two types: one type is made of materials with good heat resistance to achieve high-temperature resistance. When high-temperature resistance is required without pressure, the temperature resistance can exceed 600℃. However, if both high-temperature and high-pressure resistance are required, the temperature resistance generally cannot exceed 600℃. The other type uses a water-cooling solution. However, water cooling often adopts a relatively crude cooling method, such as cooling the entire valve body through a single water path. On the one hand, this often leads to dead zones in the cooling path and large resistance loss in the cooling path, resulting in poor performance above 600℃. On the other hand, it cannot perform precise cooling according to the characteristics of the material passing through the valve body, resulting in poor high-temperature resistance and significantly reduced reliability when used in high-temperature and high-pressure applications. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a water-cooled structure, water-cooled system, rotary valve, and water-cooled control method for a rotary valve, in order to solve the technical problem that the poor cooling efficiency of the water-cooled system of the rotary valve leads to poor high-temperature resistance.

[0006] To achieve the above and other related objectives, the technical solution of the present invention is as follows:

[0007] A water-cooled structure for a rotary valve, the rotary valve comprising a rotary valve housing, a drive shaft rotatably disposed within the rotary valve housing, a drive-side flange and a drive-side stuffing box disposed on the drive side of the rotary valve housing, and a working-side flange and a working-side stuffing box disposed on the working side of the rotary valve housing, the water-cooled structure comprising 13 cooling water channels, wherein...

[0008] The drive shaft is equipped with a drive shaft cooling water channel;

[0009] The working side flange and the transmission side flange are respectively provided with one working side flange cooling water circuit and one transmission side flange cooling water circuit.

[0010] The working side stuffing box and the transmission side stuffing box are respectively provided with one cooling water circuit for the working side stuffing box and one cooling water circuit for the transmission side stuffing box.

[0011] The rotary valve housing has eight cooling water channels distributed in different areas inside.

[0012] Optionally, the drive shaft has an axially oriented inner bore, a sleeve is inserted into the inner bore, a rotary joint is connected to the front end of the sleeve, there is a gap between the sleeve and the inner bore, and the rotary joint is provided with a drive shaft water passage inlet and a drive shaft water passage outlet that communicate with the drive shaft cooling water passage. The drive shaft cooling water passage is formed by the inner bore, the sleeve and the rotary joint.

[0013] Optionally, the working side flange cooling water passage is located inside the working side flange, and the working side flange has a first flange water passage inlet and a first flange water passage outlet that communicate with the working side flange cooling water passage. The first flange water passage inlet is located at the lower center of the working side flange cooling water passage, and the first flange water passage outlet is located at the upper center of the working side flange cooling water passage.

[0014] Optionally, the cooling water passage of the transmission side flange is located inside the transmission side flange. The transmission side flange has a second flange water passage inlet and a second flange water passage outlet that communicate with the cooling water passage of the transmission side flange. The second flange water passage inlet is located at the lower center of the cooling water passage of the transmission side flange, and the second flange water passage outlet is located at the upper center of the cooling water passage of the transmission side flange.

[0015] Optionally, the working side packing box cooling water passage is located inside the working side packing box. The working side packing box has a first packing box water passage inlet and a first packing box water passage outlet that communicate with the working side packing box cooling water passage. The first packing box water passage inlet is located at the lower center of the working side packing box cooling water passage, and the first packing box water passage outlet is located at the upper center of the working side packing box cooling water passage.

[0016] Optionally, the cooling water passage of the transmission-side stuffing box is located inside the transmission-side stuffing box. The transmission-side stuffing box has a second stuffing box water passage inlet and a second stuffing box water passage outlet that communicate with the transmission-side stuffing box cooling water passage. The second stuffing box water passage inlet is located at the lower center of the transmission-side stuffing box cooling water passage, and the second stuffing box water passage outlet is located at the upper center of the transmission-side stuffing box cooling water passage.

[0017] Optionally, each of the shell cooling water channels has a shell water channel inlet and a shell water channel outlet, with the shell water channel inlet located at the lower center of the shell cooling water channel and the shell water channel outlet located at the upper center of the shell cooling water channel.

[0018] Optionally, the eight housing cooling water circuits are respectively a first housing cooling water circuit, a second housing cooling water circuit, a third housing cooling water circuit, a fourth housing cooling water circuit, a fifth housing cooling water circuit, a sixth housing cooling water circuit, a seventh housing cooling water circuit, and an eighth housing cooling water circuit. The first housing cooling water circuit, the second housing cooling water circuit, the third housing cooling water circuit, and the fourth housing cooling water circuit are on the same side as the inspection port of the rotary valve, while the fifth housing cooling water circuit, the sixth housing cooling water circuit, the seventh housing cooling water circuit, and the eighth housing cooling water circuit are on the same side as the cooling air inlet of the rotary valve. The inspection port and the cooling air inlet are located on opposite sides.

[0019] Optionally, the first housing cooling water passage is located on the upper part of the working side of the rotary valve and on the same side as the inspection hole, and is formed by the rotary valve housing, the water passage outer shell plate, the first bent partition plate, the first vertical partition plate, the second vertical partition plate, and the first transverse partition plate; the water passage outer shell plate partially covers the rotary valve housing, the first bent partition plate is located on the upper part of the working side between the water passage outer shell plate and the rotary valve housing, the first vertical partition plate is located between the middle of the inlet of the rotary valve and the inspection hole, the second vertical partition plate is located between the inspection hole and the outlet of the rotary valve, and the second vertical partition plate and the first vertical partition plate are on the same plane, and the first transverse partition plate is located between the middle of the working side flange and the second vertical partition plate.

[0020] Optionally, the second housing cooling water passage is located on the upper part of the drive side of the rotary valve and on the same side as the inspection hole, and is formed by the rotary valve housing, the water passage outer shell plate, the second bent partition, the first vertical partition, the second vertical partition and the second transverse partition; the second bent partition is located between the upper part of the water passage outer shell plate and the rotary valve housing on the drive side, and the second bent partition and the first bent partition are symmetrically arranged on both sides of the first vertical partition; the second transverse partition is located between the middle part of the drive side flange and the second vertical partition, and the second transverse partition and the first transverse partition are symmetrically arranged on both sides of the second vertical partition.

[0021] Optionally, the third housing cooling water passage is located at the lower part of the working side of the rotary valve and on the same side as the inspection hole, and is formed by the rotary valve housing, the water passage outer shell plate, the third bent partition plate, the second vertical partition plate and the first horizontal partition plate; the third bent partition plate is located at the lower part of the working side between the water passage outer shell plate and the rotary valve housing.

[0022] Optionally, the fourth housing cooling water passage is located at the lower part of the transmission side of the rotary valve and on the same side as the inspection hole, and is formed by the rotary valve housing, the water passage outer shell plate, the fourth bent partition plate, the second vertical partition plate, and the second horizontal partition plate; the fourth bent partition plate is located at the lower part of the transmission side between the water passage outer shell plate and the rotary valve housing, and the fourth bent partition plate and the third bent partition plate are symmetrically arranged on both sides of the second vertical partition plate.

[0023] Optionally, the fifth housing cooling water passage is located on the upper part of the drive side of the rotary valve and on the same side as the cooling gas inlet, and is formed by the rotary valve housing, the water passage outer shell plate, the second bent partition, the third vertical partition, the fourth vertical partition, and the third transverse partition; the third vertical partition is located between the middle of the rotary valve inlet and the cooling gas inlet, the fourth vertical partition is located between the cooling gas inlet and the rotary valve outlet, and the fourth vertical partition and the third vertical partition are located on the same plane, and the third transverse partition is located between the middle of the drive side flange and the third vertical partition.

[0024] Optionally, the sixth housing cooling water passage is located on the upper part of the working side of the rotary valve and on the same side as the cooling gas inlet, and is formed by the rotary valve housing, the water passage outer shell plate, the first bent partition, the third vertical partition, the fourth vertical partition and the fourth transverse partition; the fourth transverse partition is located between the middle of the working side flange and the fourth vertical partition, and the fourth transverse partition and the third transverse partition are symmetrically arranged on both sides of the fourth vertical partition.

[0025] Optionally, the seventh housing cooling water passage is located at the lower part of the drive side of the rotary valve and on the same side as the cooling air inlet, and is formed by the rotary valve housing, the water passage outer shell plate, the fourth bent partition, the fourth vertical partition and the third transverse partition.

[0026] Optionally, the eighth housing cooling water passage is located at the lower part of the working side of the rotary valve and on the same side as the cooling air inlet, and is formed by the rotary valve housing, the water passage outer shell plate, the third bent partition, the fourth vertical partition and the fourth horizontal partition.

[0027] Based on the same concept, this application also provides a water cooling system, including a cooling water circulation unit, an inlet main pipe, an inlet tank, a cooling branch pipe, an outlet tank, and an outlet main pipe connected in sequence to form a closed-loop water circuit, and a water cooling structure with a rotary valve as described above, wherein,

[0028] The inlet of the main water inlet pipe is connected to the outlet of the cooling water circulation unit, and the outlet of the main water inlet pipe is connected to the water inlet tank.

[0029] Downstream of the water inlet tank, a plurality of cooling branch pipes are connected in parallel. Each cooling branch pipe includes an inlet branch pipe and an outlet branch pipe. Each inlet branch pipe is connected to the inlet of each cooling water path of the rotary valve, and each outlet branch pipe is connected to the outlet of each cooling water path of the rotary valve.

[0030] The downstream outlet branch pipes of the plurality of cooling branch pipes are connected to the water outlet tank, the downstream outlet tank is connected to the main water outlet pipe, and the outlet of the main water outlet pipe is connected to the inlet of the cooling water circulation unit.

[0031] Multiple detection elements are installed on the closed-loop water circuit.

[0032] Optionally, a first pressure gauge and a first thermometer are provided on the main water inlet pipe, and a first control valve is provided upstream and downstream of the first pressure gauge and the first thermometer.

[0033] Each of the cooling branch pipes is equipped with a first flow meter on its inlet branch pipe, and a second control valve is installed upstream of each first flow meter and a first control valve is installed downstream of each first flow meter.

[0034] Each of the cooling branch pipes is equipped with a second thermometer and a second flow meter, and a first control valve is installed upstream and downstream of the second thermometer and the second flow meter.

[0035] A second pressure gauge is installed on the main water outlet pipe, and a first control valve is installed downstream of the second pressure gauge.

[0036] Optionally, the first control valve is a manual ball valve, and the second control valve is a pneumatic ball valve.

[0037] Optionally, the cooling branch pipes are provided in 13 ways, and are respectively connected to the 13 cooling water lines of the rotary valve. The cooling water volume of each cooling branch pipe can be controlled independently.

[0038] Based on the same concept, this application also provides a rotary valve, including the water-cooled structure of the rotary valve as described above.

[0039] Based on the same concept, this application also provides a water cooling control method, applied to the water cooling system described above, the control method comprising:

[0040] The water-cooling system uses sensors to monitor relevant parameter values ​​in real time, compares the setpoints with the real-time monitored values, and executes corresponding control commands.

[0041] When the measured temperature difference between the outlet and inlet of the cooling branch pipe exceeds the preset temperature difference range, adjust the water flow of the corresponding cooling branch pipe to ensure that the corresponding cooling part is cooled normally; otherwise, do not perform the operation.

[0042] When the measured flow difference between the outlet and inlet of the cooling branch pipe exceeds the preset range, check for leaks in the corresponding cooling branch pipe and ensure that the corresponding cooling part is cooled normally; otherwise, do not perform the operation.

[0043] When the measured temperature difference between the outlet and inlet of multiple cooling branch pipes exceeds the preset temperature difference range, or the measured flow difference between the outlet and inlet of multiple cooling branch pipes exceeds the preset flow difference range, the quench gas is activated for cooling.

[0044] As described above, the present invention has the following beneficial effects:

[0045] By rationally designing a multi-cooling-water-circuit water-cooling structure for the rotary valve, the zoning of the water-cooling structure is optimized, avoiding problems such as cooling dead zones and large cooling water flow resistance caused by unreasonable water circuit zoning. This improves cooling efficiency and high-temperature resistance, thereby enhancing the reliability of the rotary valve.

[0046] By setting up a water cooling system, on the one hand, the cooling water volume can be adjusted according to the actual temperature differences of various parts of the rotary valve, so that the cooling effect of each component is uniform, which is beneficial to the overall life and energy saving and environmental protection; on the other hand, through the water cooling control method, the water cooling system can be controlled in a timely closed loop according to the real-time monitoring values ​​of temperature, pressure and flow of each cooling water circuit, to ensure that the water cooling system works normally, or even ensures the reliable operation of the production line in extreme cases. Attached Figure Description

[0047] Figure 1 This is a front view of the water-cooled structure of the rotary valve according to an embodiment of the present invention;

[0048] Figure 2 This is a left structural view of the water-cooling structure of the rotary valve according to an embodiment of the present invention;

[0049] Figure 3 This is a cross-sectional view (AA) of the water-cooling structure of the rotary valve according to an embodiment of the present invention;

[0050] Figure 4 This is a BB cross-sectional view of the water-cooled structure of the rotary valve in an embodiment of the present invention;

[0051] Figure 5 This is a K-direction view of the water-cooling structure of the rotary valve in an embodiment of the present invention;

[0052] Figure 6 This is a schematic diagram of the water cooling system according to an embodiment of the present invention. Figure 1 ;

[0053] Figure 7 This is a schematic diagram of the water cooling system according to an embodiment of the present invention. Figure 2 ;

[0054] Figure 8 Control logic diagram of the water cooling system according to an embodiment of the present invention.

[0055] Explanation of reference numerals in the attached figures

[0056] 100-Rotary valve;

[0057] 10-Rotary valve housing; 11-Inlet; 12-Outlet; 13-Cooling gas inlet; 14-Inspection hole; 15-Water circuit outer shell plate;

[0058] 171-First bent partition; 172-Second bent partition; 173-Third bent partition; 174-Fourth bent partition; 181-First vertical partition; 182-Second vertical partition; 183-Third vertical partition; 184-Fourth vertical partition; 191-First horizontal partition; 192-Second horizontal partition; 193-Third horizontal partition;

[0059] 194 - Fourth transverse partition;

[0060] 20 - Drive shaft; 21 - Drive shaft inner hole; 22 - Sleeve; 23 - Rotary joint;

[0061] 30 - Drive-side flange; 40 - Drive-side stuffing box; 50 - Working-side flange; 60 - Working-side stuffing box;

[0062] 70 - Drive assembly; 71 - Drive motor; 72 - Coupling;

[0063] 80-rotor;

[0064] 201 - Drive shaft cooling water passage; 201a - Drive shaft water passage inlet; 201b - Drive shaft water passage outlet;

[0065] 202 - Cooling water passage for the working side flange; 202a - Water inlet for the first flange; 202b - Water outlet for the first flange;

[0066] 203 - Cooling water passage for the working side stuffing box; 203a - Water inlet for the first stuffing box; 203b - Water outlet for the first stuffing box;

[0067] 204 - Cooling water passage for the transmission side flange; 204a - Water inlet for the second flange; 204b - Water outlet for the second flange;

[0068] 205 - Cooling water passage for the transmission side stuffing box; 205a - Water inlet for the second stuffing box; 205b - Water outlet for the second stuffing box;

[0069] 206 - First shell cooling water passage; 206a - First shell water passage inlet; 206b - First shell water passage outlet;

[0070] 207 - Second shell cooling water passage; 207a - Second shell water passage inlet; 207b - Second shell water passage outlet;

[0071] 208 - Third shell cooling water passage; 208a - Third shell water passage inlet; 208b - Third shell water passage outlet;

[0072] 209 - Fourth shell cooling water passage; 209a - Fourth shell water passage inlet; 209b - Fourth shell water passage outlet;

[0073] 210 - Fifth shell cooling water passage; 210a - Fifth shell water passage inlet; 210b - Fifth shell water passage outlet;

[0074] 211 - Sixth shell cooling water passage; 211a - Sixth shell water passage inlet; 211b - Sixth shell water passage outlet;

[0075] 212 - Seventh shell cooling water passage; 212a - Seventh shell water passage inlet; 212b - Seventh shell water passage outlet;

[0076] 213 - Eighth shell cooling water passage; 213a - Seventh shell water passage inlet; 213b - Seventh shell water passage outlet;

[0077] 300-Water cooling system;

[0078] 301-Cooling water circulation unit; 302-Main water inlet pipe; 303-Water inlet tank; 304-Cooling branch pipe; 304a-Water inlet branch pipe; 304b-Water outlet branch pipe; 305-Water outlet tank; 306-Main water outlet pipe; 307-First control valve; 308-First pressure gauge; 309-First thermometer; 310-Second control valve; 311-First flow meter; 312-Second thermometer; 313-Second flow meter; 314-Second pressure gauge. Detailed Implementation

[0079] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0080] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0081] To provide a detailed description of the present invention, the water-cooling structure, water-cooling system, rotary valve, and water-cooling control method of the present invention will be specifically described below:

[0082] Please combine Figures 1 to 5 As shown, the present invention provides a water-cooled structure for a rotary valve. The rotary valve 100 includes a rotary valve housing 10, a drive shaft 20 rotatably disposed within the rotary valve housing 10, a drive-side flange 30 and a drive-side stuffing box 40 disposed on the drive side of the rotary valve housing 10, and a working-side flange 50 and a working-side stuffing box 60 disposed on the working side of the rotary valve housing 10. The water-cooled structure includes 13 cooling water channels. Specifically, the drive shaft 20 has one drive shaft cooling water channel 201; the working-side flange 50 and the drive-side flange 30 each have one working-side flange cooling water channel 202 and one drive-side flange cooling water channel 204, respectively; the working-side stuffing box 60 and the drive-side stuffing box 40 each have one working-side stuffing box cooling water channel 203 and one drive-side stuffing box cooling water channel 205, respectively; and the rotary valve housing 10 has eight housing cooling water channels distributed in different areas inside.

[0083] Specifically, the rotary valve 100 includes a rotary valve housing 10, a drive shaft 20 rotatably disposed within the rotary valve housing 10, a rotor 80 fixedly sleeved on the drive shaft 20, the drive shaft 20 being supported on a support plate connected to its respective flange by drive-side and working-side bearings and bearing seats, and being driven to rotate by a drive assembly 70, the drive assembly 70 including a drive motor 71 and a coupling 72, the end of the drive shaft 20 being connected to the drive assembly 70, the side of the rotary valve housing 10 near the end of the drive shaft 20 being the drive side, and the side near the front end of the drive shaft 20 being the working side. The rotary valve housing 10 has an inlet 11 at its upper part, which is eccentrically positioned relative to the center of the rotary valve 100 to facilitate the conveying of solid granular materials. The rotary valve housing 10 also has an outlet 12 at its lower part for material discharge. A cooling gas inlet 13 is located on the upper part of the non-eccentric side of the rotary valve housing 10, opposite to the inlet 11. An inspection hole 14 is also provided at the inlet 11 section of the rotary valve 100. The rotary valve housing 10 has a drive-side flange 30 and a drive-side stuffing box 40 on its drive side, and a work-side flange 50 and a work-side stuffing box 60 on its work side. The drive-side flange 30 and the work-side flange 50 are symmetrically positioned, as are the drive-side stuffing box 40 and the work-side stuffing box 60.

[0084] The water-cooling structure of the rotary valve includes 13 cooling water channels, arranged in zones on the rotary valve 100. Specifically, the rotary valve housing 10 has 8 housing cooling water channels distributed in different zones to collectively cool and protect the rotary valve housing 10; the drive shaft 20 has one drive shaft cooling water channel 201 arranged inside to cool and protect the drive shaft 20; the working side flange 50 has one working side flange cooling water channel 202 to cool and protect the working side flange 50; the drive side flange 30 has one drive side cooling water channel to cool and protect the drive side flange 30; the working side stuffing box 60 has one working side stuffing box cooling water channel 203 to cool and protect the stuffing sealing area; and the drive side stuffing box 40 has one drive side stuffing box cooling water channel 205 to cool and protect the stuffing sealing area.

[0085] See Figure 3In some embodiments, the drive shaft 20 has an axially oriented inner bore 21. A sleeve 22 passes through the inner bore 21, and a rotary joint 23 is connected to the front end of the sleeve 22. There is a gap between the sleeve 22 and the inner bore 21. The rotary joint 23 is provided with a drive shaft water passage inlet 201a and a drive shaft water passage outlet 201b, which communicate with the drive shaft cooling water passage 201. The drive shaft cooling water passage 201 is formed by the inner bore 21, the sleeve 22, and the rotary joint 23. Specifically, cooling water enters the sleeve 22 from the drive shaft water passage inlet 201a, then flows out into the inner bore 21, flowing in the gap between the sleeve 22 and the inner bore 21 until it flows out from the drive shaft water passage outlet 201b. This design ensures that the cooling water can directly and uniformly contact the inner wall of the drive shaft 20, thereby achieving efficient heat conduction. The design effectively increases the contact area between the cooling water and the material of the drive shaft 20, further improving heat dissipation efficiency. Specifically, the drive shaft water inlet 201a is located at the front end of the rotary joint 23, and the drive shaft water outlet 201b is located on the side of the rotary joint 23. The sleeve 22 and the rotary joint 23 are cleverly integrated into the drive shaft 20, without occupying additional space, resulting in a more compact structure and facilitating the implementation of complex transmission and cooling functions within a limited space. Thus, through the drive shaft cooling water passage 201, the thermal stress generated by the drive shaft 20 during operation can be significantly reduced, thereby extending the service life of the drive shaft 20 and its related components.

[0086] Continue reading Figure 2 and Figure 3 In the above embodiment, the working side flange cooling water passage 202 is located inside the working side flange 50. The working side flange 50 is provided with a first flange water passage inlet 202a and a first flange water passage outlet 202b that communicate with the working side flange cooling water passage 202. The first flange water passage inlet 202a is located at the lower center of the working side flange cooling water passage 202, and the first flange water passage outlet 202b is located at the upper center of the working side flange cooling water passage 202. Specifically, the working side flange cooling water passage 202 is annular. Cooling water enters from the lower first flange water passage inlet 202a and flows evenly from bottom to top through the working side flange cooling water passage 202, and flows out from the upper first flange water passage outlet 202b. This effectively avoids local overheating or uneven cooling, thereby improving cooling efficiency. Through sufficient heat exchange between the cooling water and the working side flange 50, the risk of deformation or cracking of the working side flange 50 due to thermal stress is reduced, making the working side flange 50 more stable and reliable when subjected to working pressure and temperature changes.

[0087] See Figure 3In the above embodiment, the transmission side flange cooling water passage 204 is located inside the transmission side flange 30. The transmission side flange 30 has a second flange water passage inlet 204a and a second flange water passage outlet 204b that communicate with the transmission side flange cooling water passage 204. The second flange water passage inlet 204a is located at the lower center of the transmission side flange cooling water passage 204, and the second flange water passage outlet 204b is located at the upper center of the transmission side flange cooling water passage 204. Specifically, the cooling water passage 204 of the transmission side flange is annular. Cooling water enters from the lower second flange water passage inlet 204a and flows evenly from bottom to top through the transmission side flange cooling water passage 204, and flows out from the upper second flange water passage outlet 204b. This effectively avoids local overheating or uneven cooling, thereby improving cooling efficiency. Through sufficient heat exchange between the cooling water and the transmission side flange 30, the risk of deformation or cracking of the transmission side flange 30 due to thermal stress is reduced, making the transmission side flange 30 more stable and reliable when subjected to working pressure and temperature changes.

[0088] See Figure 2 and Figure 3 In some embodiments, the working-side stuffing box cooling water channel 203 is located inside the working-side stuffing box 60. The working-side stuffing box 60 has a first stuffing box water channel inlet 203a and a first stuffing box water channel outlet 203b communicating with the working-side stuffing box cooling water channel 203. The first stuffing box water channel inlet 203a is located at the lower center of the working-side stuffing box cooling water channel 203, and the first stuffing box water channel outlet 203b is located at the upper center of the working-side stuffing box cooling water channel. Specifically, the working-side stuffing box cooling water channel 203 is annular. Cooling water enters from the bottom first stuffing box water channel inlet 203a and flows evenly from bottom to top through the working-side stuffing box cooling water channel 203, and flows out from the upper first stuffing box water channel outlet 203b. This design ensures that the cooling water can fully contact and remove the heat generated inside the working-side stuffing box 60, thereby effectively reducing the working temperature of the working-side stuffing box 60 and its internal components, avoiding local overheating, and ensuring the stable operation of all parts of the equipment. The uniformly distributed cooling water channels 203 on the working side of the stuffing box can significantly reduce the thermal stress caused by temperature changes, which helps to extend the service life of the working side stuffing box 60.

[0089] Continue reading Figure 3In the above embodiment, the transmission-side stuffing box cooling water passage 205 is located inside the transmission-side stuffing box 40. The transmission-side stuffing box 40 has a second stuffing box water passage inlet 205a and a second stuffing box water passage outlet 205b that communicate with the transmission-side stuffing box cooling water passage 205. The second stuffing box water passage inlet 205a is located at the lower center of the transmission-side stuffing box cooling water passage 205, and the second stuffing box water passage outlet 205b is located at the upper center of the transmission-side stuffing box cooling water passage 205. Specifically, the cooling water passage 205 of the transmission-side stuffing box is annular. Cooling water enters from the bottom second stuffing box water passage inlet 205a and flows evenly from bottom to top through the transmission-side stuffing box cooling water passage 205, exiting from the upper second stuffing box water passage outlet 205b. This design ensures that the cooling water can fully contact and remove the heat generated inside the transmission-side stuffing box 40, thereby effectively reducing the operating temperature of the transmission-side stuffing box 40 and its internal components, avoiding local overheating, and ensuring the stable operation of all parts of the equipment. The evenly distributed cooling water passage 205 of the transmission-side stuffing box can significantly reduce the thermal stress caused by temperature changes, helping to extend the service life of the transmission-side stuffing box 40.

[0090] See Figure 1 and Figure 5 In some embodiments, each of the housing cooling water channels has a housing water channel inlet and a housing water channel outlet. The housing water channel inlet is located at the lower center of the housing cooling water channel, and the housing water channel outlet is located at the upper center of the housing cooling water channel. Thus, the housing water channel inlet is located below the housing water channel outlet. Cooling water enters from the housing water channel inlet and flows out from the housing water channel outlet, cooling the corresponding parts of the rotary valve housing 10. Since the cooling water flows from the lower part of the housing cooling water channel and gradually diffuses upwards, this layout ensures that all parts of the rotary valve housing 10 receive relatively uniform cooling. As the cooling water flows from bottom to top, its temperature gradually increases, and it is finally discharged from the housing water channel outlet. This design allows the cooling water to fully absorb heat during flow, thereby improving water cooling efficiency. The location design of the housing water channel inlet and outlet facilitates daily maintenance and repair.

[0091] Continue reading Figure 1 and Figure 5In the above embodiment, the eight housing cooling water paths are respectively the first housing cooling water path 206, the second housing cooling water path 207, the third housing cooling water path 208, the fourth housing cooling water path 209, the fifth housing cooling water path 210, the sixth housing cooling water path 211, the seventh housing cooling water path 212, and the eighth housing cooling water path 213. The first housing cooling water path 206, the second housing cooling water path 207, the third housing cooling water path 208, and the fourth housing cooling water path 209 are on the same side as the inspection hole 14 of the rotary valve 100, while the fifth housing cooling water path 210, the sixth housing cooling water path 211, the seventh housing cooling water path 212, and the eighth housing cooling water path 213 are on the same side as the cooling air inlet 13 of the rotary valve 100. The inspection hole 14 and the cooling air inlet 13 are located on opposite sides. Specifically, by dividing the area into eight independent housing cooling water paths, independent cooling control of each area is facilitated. This zoned design allows for flexible adjustment of the cooling flow rate and temperature of each housing cooling water path based on the heat generation in different areas, achieving a more precise cooling effect. Zoned cooling effectively manages the heat distribution within the rotary valve housing 10, preventing localized overheating or insufficient cooling, thereby improving overall heat exchange efficiency. Each housing cooling water path cools a specific portion of the housing, ensuring uniform cooling and helping to reduce thermal stress caused by temperature gradients, thus protecting the structural safety of the rotary valve housing 10. The multiple housing cooling water paths increase redundancy; each path can be considered an independent module, facilitating individual maintenance and repair. Even if one housing cooling water path fails, the others can continue operating, ensuring the rotary valve housing 10 remains operational for a period. This allows for rapid online repair of the faulty path without immediately halting the rotary valve and causing losses to the entire production line.

[0092] See Figure 1 and Figure 3In the above embodiment, the first housing cooling water passage 206 is located on the upper part of the working side of the rotary valve 100 and on the same side as the inspection hole 14. It is formed by the rotary valve housing 10, the water passage outer shell plate 15, the first bent partition 171, the first vertical partition 181, the second vertical partition 182, and the first transverse partition 191. The water passage outer shell plate 15 partially covers the rotary valve housing 10. The first bent partition 171 is located on the upper part of the working side between the water passage outer shell plate 15 and the rotary valve housing 10. The first vertical partition 181 is located between the middle of the inlet 11 of the rotary valve 100 and the inspection hole 14. The second vertical partition 182 is located between the inspection hole 14 and the outlet 12 of the rotary valve 100, and the second vertical partition 182 and the first vertical partition 181 are located on the same plane. The first transverse partition 191 is located between the middle of the working side flange 50 and the second vertical partition 182. Specifically, the first housing cooling water passage 206 has a first housing water passage inlet 206a and a first housing water passage outlet 206b. The first housing water passage inlet 206a is close to the first transverse partition 191, and the first housing water passage outlet 206b is close to the feed port 11 of the rotary valve 100. Cooling water enters from the lower first housing water passage inlet 206a, flows through the first housing cooling water passage 206, and flows out from the upper first housing water passage outlet 206b. Through the first housing cooling water passage 206, the flow path of the cooling water is optimized, so that the cooling water can fully contact the hot surface of the rotary valve housing 10. The first housing cooling water passage 206 can ensure that the temperature distribution on the upper part of the working side of the rotary valve 100 (on the same side as the inspection hole 14) is more uniform, avoid the occurrence of local overheating, and protect the structure and performance of the rotary valve 100.

[0093] See Figure 1 , Figure 3 and Figure 4In the above embodiment, the second housing cooling water passage 207 is located on the upper part of the transmission side of the rotary valve 100 and on the same side as the inspection hole 14. It is formed by the rotary valve housing 10, the water passage outer shell plate 15, the second bent partition 172, the first vertical partition 181, the second vertical partition 182, and the second transverse partition 192. The second bent partition 172 is located between the water passage outer shell plate 15 and the rotary valve housing 10 on the upper part of the transmission side, and the second bent partition 172 and the first bent partition 171 are symmetrically arranged on both sides of the first vertical partition 181. The second transverse partition 192 is located between the middle part of the transmission side flange 30 and the second vertical partition 182, and the second transverse partition 192 and the first transverse partition 191 are symmetrically arranged on both sides of the second vertical partition 182. Specifically, the second housing cooling water passage 207 has a second housing water passage inlet 207a and a second housing water passage outlet 207b. The second housing water passage inlet 207a is close to the second transverse partition 192 and is symmetrically arranged with the first housing water passage inlet 206a. The second housing water passage outlet 207b is close to the feed port 11 of the rotary valve 100 and is symmetrically arranged with the first housing water passage outlet 206b. Cooling water enters from the lower second housing water passage inlet 207a, flows through the second housing cooling water passage 207, and flows out from the upper second housing water passage outlet 207b. The first housing cooling water passage 206 and the second housing cooling water passage 207 are located on the upper part of the working side and the transmission side of the rotary valve 100, respectively, and are on the same side as the inspection hole 14. This dual-sided cooling layout can more comprehensively cover the upper heat source area of ​​the rotary valve 100 (on the same side as the inspection hole 14), further improving the overall cooling efficiency and ensuring the stable operation of the rotary valve 100 in a high-temperature environment. The second bent baffle 172 is symmetrically arranged on both sides of the first bent baffle 171, and the second transverse baffle 192 is symmetrically arranged on both sides of the second vertical baffle 182, just as the first transverse baffle 191 is arranged on both sides of the second vertical baffle 182. This symmetrical design not only improves the aesthetics of the cooling water circuit structure but also makes the cooling effect on both sides more balanced, avoiding local overheating or insufficient cooling. The second housing cooling water circuit 207 ensures a more uniform temperature distribution on the upper part of the rotary valve 100's transmission side (on the same side as the inspection hole 14), preventing local overheating and protecting the structure and performance of the rotary valve 100.

[0094] See Figure 1 and Figure 3In the above embodiment, the third housing cooling water passage 208 is located at the lower part of the working side of the rotary valve 100 and on the same side as the inspection hole 14, and is formed by the rotary valve housing 10, the water passage outer shell plate 15, the third bent partition 173, the second vertical partition 182 and the first horizontal partition 191; the third bent partition 173 is located at the lower part of the working side between the water passage outer shell plate 15 and the rotary valve housing 10. Specifically, the third housing cooling water passage 208 has a third housing water passage inlet 208a and a third housing water passage outlet 208b. The third housing water passage inlet 208a is close to the discharge port 12 of the rotary valve 100, and the third housing water passage outlet 208b is close to the first transverse partition 191 and corresponds to the first housing water passage inlet 206a. Cooling water enters from the lower third housing water passage inlet 208a, flows through the third housing cooling water passage 208, and flows out from the upper third housing water passage outlet 208b. Through the third housing cooling water passage 208, the bottom temperature of the rotary valve housing 10 can be effectively reduced, preventing performance degradation or damage caused by local overheating. The third housing cooling water passage 208 can ensure a more uniform temperature distribution on the lower working side of the rotary valve 100 (on the same side as the inspection hole 14), avoiding the occurrence of local overheating and protecting the structure and performance of the rotary valve 100.

[0095] See Figure 1 , Figure 3 and Figure 4In the above embodiment, the fourth housing cooling water passage 209 is located at the lower part of the transmission side of the rotary valve 100 and on the same side as the inspection hole 14. It is formed by the rotary valve housing 10, the water passage outer shell plate 15, the fourth bent partition 174, the second vertical partition 182, and the second horizontal partition 192. The fourth bent partition 174 is located at the lower part of the transmission side between the water passage outer shell plate 15 and the rotary valve housing 10, and the fourth bent partition 174 and the third bent partition 173 are symmetrically arranged on both sides of the second vertical partition 182. Specifically, the fourth housing cooling water passage 209 has a fourth housing water passage inlet 209a and a fourth housing water passage outlet 209b. The fourth housing water passage inlet 209a is close to the discharge port 12 of the rotary valve 100 and is symmetrically arranged with the third housing water passage inlet 208a. The fourth housing water passage outlet 209b is close to the second transverse partition 192 and is symmetrically arranged with the third housing water passage outlet 208b. Cooling water enters from the lower fourth housing water passage inlet 209a, flows through the fourth housing cooling water passage 209, and flows out from the upper fourth housing water passage outlet 209b. The third housing cooling water passage 208 and the fourth housing cooling water passage 209 are located on the lower part of the working side and the transmission side of the rotary valve 100, respectively, and are on the same side as the inspection hole 14. This dual-sided cooling layout can more comprehensively cover the lower heat source area of ​​the rotary valve 100 (on the same side as the inspection hole 14), further improving the overall cooling efficiency and ensuring the stable operation of the rotary valve 100 in a high-temperature environment. The fourth bent baffle 174 and the third bent baffle 173 are symmetrically arranged on both sides of the second vertical baffle 182, and the second transverse baffle 192 and the first transverse baffle 191 are symmetrically arranged on both sides of the second vertical baffle 182. This symmetrical design not only improves the structure of the cooling water circuit, but also makes the cooling effect on both sides more balanced, avoiding the problems of local overheating or insufficient cooling. The fourth housing cooling water circuit 209 can ensure that the temperature distribution on the lower part of the rotary valve 100 transmission side (on the same side as the inspection hole 14) is more uniform, avoiding the occurrence of local overheating and protecting the structure and performance of the rotary valve 100.

[0096] See Figure 3 and Figure 5In the above embodiment, the fifth housing cooling water passage 210 is located on the upper part of the transmission side of the rotary valve 100 and on the same side as the cooling gas inlet 13. It is formed by the rotary valve housing 10, the water passage outer shell plate 15, the second bent partition 172, the third vertical partition 183, the fourth vertical partition 184, and the third transverse partition 193. The third vertical partition 183 is located between the middle of the feed port 11 of the rotary valve 100 and the cooling gas inlet 13. The fourth vertical partition 184 is located between the cooling gas inlet 13 and the discharge port 12 of the rotary valve 100. The fourth vertical partition 184 and the third vertical partition 183 are located on the same plane. The third transverse partition 193 is located between the middle of the transmission side flange 30 and the third vertical partition 183. Specifically, the fifth housing cooling water passage 210 has a fifth housing water passage inlet 210a and a fifth housing water passage outlet 210b. The fifth housing water passage inlet 210a is close to the third transverse partition 193, and the fifth housing water passage outlet 210b is close to the feed port 11 of the rotary valve 100. Cooling water enters from the lower fifth housing water passage inlet 210a, flows through the fifth housing cooling water passage 210, and flows out from the upper fifth housing water passage outlet 210b. Through the fifth housing cooling water passage 210, the flow path of the cooling water is optimized, so that the cooling water can fully contact the hot surface of the rotary valve housing 10. The fifth housing cooling water passage 210 can ensure that the temperature distribution on the upper part of the rotary valve 100 transmission side (on the same side as the cooling air inlet 13) is more uniform, avoid the occurrence of local overheating, and protect the structure and performance of the rotary valve 100.

[0097] See Figure 3 , Figure 4 and Figure 5In the above embodiment, the sixth housing cooling water passage 211 is located on the upper part of the working side of the rotary valve 100 and on the same side as the cooling gas inlet 13. It is formed by the rotary valve housing 10, the water passage outer shell plate 15, the first bent partition 171, the third vertical partition 183, the fourth vertical partition 184 and the fourth transverse partition 194. The fourth transverse partition 194 is located between the middle of the working side flange 50 and the fourth vertical partition 184, and the fourth transverse partition 194 and the third transverse partition 193 are symmetrically arranged on both sides of the fourth vertical partition 184. Specifically, the sixth housing cooling water passage 211 has a sixth housing water passage inlet 211a and a sixth housing water passage outlet 211b. The sixth housing water passage inlet 211a is close to the fourth transverse partition 194 and is symmetrically arranged with the fifth housing water passage inlet 210a. The sixth housing water passage outlet 211b is close to the feed port 11 of the rotary valve 100 and is symmetrically arranged with the fifth housing water passage outlet 210b. Cooling water enters from the lower sixth housing water passage inlet 211a, flows through the sixth housing cooling water passage 211, and flows out from the upper sixth housing water passage outlet 211b. The sixth housing cooling water passage 211 and the fifth housing cooling water passage 210 are located on the upper part of the working side and the transmission side of the rotary valve 100, respectively, and are on the same side as the cooling gas inlet 13. This dual-sided cooling layout can more comprehensively cover the upper heat source area of ​​the rotary valve 100 (on the same side as the cooling gas inlet 13), further improving the overall cooling efficiency and ensuring the stable operation of the rotary valve 100 in a high-temperature environment. The second bent baffle 172 and the first bent baffle 171 are symmetrically arranged on both sides of the third vertical baffle 183, and the fourth transverse baffle 194 and the third transverse baffle 193 are symmetrically arranged on both sides of the fourth vertical baffle 184. This symmetrical design not only beautifies the structure of the cooling water circuit, but also makes the cooling effect on both sides more balanced, avoiding the problem of local overheating or insufficient cooling. The sixth housing cooling water circuit 211 can ensure that the temperature distribution on the upper part of the working side of the rotary valve 100 (on the same side as the cooling gas inlet 13) is more uniform, avoiding the occurrence of local overheating and protecting the structure and performance of the rotary valve 100.

[0098] See Figure 3 and Figure 5In the above embodiment, the seventh housing cooling water passage 212 is located at the lower part of the transmission side of the rotary valve 100 and on the same side as the cooling gas inlet 13, and is formed by the rotary valve housing 10, the water passage outer shell plate 15, the fourth bent partition 174, the fourth vertical partition 184 and the third transverse partition 193. Specifically, the seventh housing cooling water passage 212 has a seventh housing water passage inlet 212a and a seventh housing water passage outlet 212b. The seventh housing water passage inlet 212a is close to the discharge port 12 of the rotary valve 100, and the seventh housing water passage outlet 212b is close to the third transverse partition 193 and corresponds to the fifth housing water passage inlet 210a. Cooling water enters from the lower seventh housing water passage inlet 212a, flows through the seventh housing cooling water passage 212, and flows out from the upper seventh housing water passage outlet 212b. Through the seventh housing cooling water passage 212, the bottom temperature of the rotary valve housing 10 can be effectively reduced, preventing performance degradation or damage caused by local overheating. The seventh housing cooling water passage 212 can ensure that the temperature distribution of the lower part of the rotary valve 100 on the transmission side (on the same side as the cooling air inlet 13) is more uniform, avoiding the occurrence of local overheating and protecting the structure and performance of the rotary valve 100.

[0099] See Figure 3 , Figure 4 and Figure 5In the above embodiment, the eighth housing cooling water passage 213 is located at the lower part of the working side of the rotary valve 100 and on the same side as the cooling gas inlet 13. It is formed by the rotary valve housing 10, the water passage outer shell plate 15, the third bent partition 173, the fourth vertical partition 184, and the fourth horizontal partition 194. Specifically, the eighth housing cooling water passage 213 has an eighth housing water passage inlet and an eighth housing water passage outlet. The eighth housing water passage inlet is close to the discharge port 12 of the rotary valve 100 and is symmetrically arranged with the seventh housing water passage inlet 212a. The eighth housing water passage outlet is close to the fourth horizontal partition 194 and is symmetrically arranged with the seventh housing water passage outlet 212b. Cooling water enters from the lower eighth housing water passage inlet, flows through the eighth housing cooling water passage 213, and flows out from the upper eighth housing water passage outlet. The eighth housing cooling water passage 213 and the seventh housing cooling water passage 212 are located on the lower part of the working side and transmission side of the rotary valve 100, respectively, and are on the same side as the cooling gas inlet 13. This dual-sided cooling layout can more comprehensively cover the lower heat source area of ​​the rotary valve 100 (on the same side as the cooling gas inlet 13), further improving the overall cooling efficiency and ensuring the stable operation of the rotary valve 100 in high-temperature environments. The fourth bent baffle 174 and the third bent baffle 173 are also symmetrically arranged on both sides of the fourth vertical baffle 184, and the fourth transverse baffle 194 and the third transverse baffle 193 are symmetrically arranged on both sides of the fourth vertical baffle 184. This symmetrical design not only beautifies the structure of the cooling water passages, but also makes the cooling effect on both sides more balanced, avoiding the problems of local overheating or insufficient cooling. The eighth housing cooling water passage 213 can ensure that the temperature distribution in the lower part of the working side of the rotary valve 100 (on the same side as the cooling gas inlet 13) is more uniform, avoiding the occurrence of local overheating and protecting the structure and performance of the rotary valve 100.

[0100] Based on the same concept, this application also provides a water cooling system 300, see reference. Figure 6The system includes a cooling water circulation unit 301, a main inlet pipe 302, an inlet tank 303, cooling branch pipes 304, an outlet tank 305, and a main outlet pipe 306, which are sequentially connected to form a closed-loop water circuit. It also includes a water-cooled structure with a rotary valve as described above. The inlet of the main inlet pipe 302 is connected to the outlet of the cooling water circulation unit 301, and the outlet of the main inlet pipe 302 is connected to the inlet tank 303. Multiple cooling branch pipes 304 are connected in parallel downstream of the inlet tank 303, and each cooling branch pipe 304 includes an inlet branch pipe. 304a and outlet branch pipe 304b, each of the inlet branch pipe 304a is connected to the inlet of each cooling water path of the rotary valve 100, and each of the outlet branch pipes 304b is connected to the outlet of each cooling water path of the rotary valve 100; the downstream of the outlet branch pipes 304b of the plurality of cooling branch pipes 304 is connected to the outlet tank 305, the downstream of the outlet tank 305 is connected to the outlet main pipe 306, and the outlet of the outlet main pipe 306 is connected to the inlet of the cooling water circulation unit 301; a plurality of detection elements are provided on the closed-loop water path.

[0101] Example 1:

[0102] In one embodiment, the water cooling system 300 is provided with 13 cooling branch pipes 304, which are respectively connected to the 13 cooling water paths of the rotary valve 100. Each cooling branch pipe 304 can independently control the cooling water volume. Specifically, each of the 13 cooling water paths distributed on the rotary valve 100 corresponds to one cooling branch pipe 304, for a total of 13 cooling branch pipes 304. After being output from the cooling water circulation unit 301, the cooling water sequentially passes through the inlet main pipe 302, the inlet tank 303, the inlet branch pipe 304a of the cooling branch pipe 304, each cooling water path of the rotary valve 100, the outlet branch pipe 304b of the cooling branch pipe 304, the outlet tank 305, and the outlet main pipe 306 before entering the cooling water circulation unit 301 for processing, thereby forming a closed-loop water cooling system 300 to cool the rotary valve 100.

[0103] In the above embodiment, the water cooling system 300 is equipped with multiple detection elements. A first pressure gauge 308 and a first thermometer 309 are installed on the main water inlet pipe 302. A first control valve 307 is installed upstream and downstream of both the first pressure gauge 308 and the first thermometer 309. Specifically, since the cooling water source for each cooling branch pipe 304 is the same, and the inlet water pressure and temperature are the same, a first pressure gauge 308 and a first thermometer 309 are installed on the main water inlet pipe 302. A first control valve 307 is installed upstream and downstream of both the first pressure gauge 308 and the first thermometer 309 to facilitate the detection and maintenance of the first pressure gauge 308 and the first thermometer 309.

[0104] To enable precise control of the water cooling system 300, a first flow meter 311 is installed on the inlet branch pipe 304a of each cooling branch pipe 304. A second control valve 310 is installed upstream of each first flow meter 311, and a first control valve 307 is installed downstream, allowing independent adjustment of the flow rate in each inlet branch pipe 304a. The first control valve 307 is a manual ball valve, and the second control valve 310 is a pneumatic ball valve. The control system can remotely control the second control valve 310 to adjust the flow rate. The combination of the two control valves facilitates the inspection and maintenance of the flow meters.

[0105] Each of the cooling branch pipes 304 has a second thermometer 312 and a second flow meter 313 installed on its outlet branch pipe 304b. A first control valve 307 is installed upstream and downstream of both the second thermometer 312 and the second flow meter 313. A second pressure gauge 314 is installed on the main outlet pipe 306, and a first control valve 307 is installed downstream of the second pressure gauge 314. Specifically, the second thermometer 312 and the second flow meter 313 on each outlet branch pipe 304b can monitor the temperature and flow rate of the outlet branch pipe 304b, respectively. By comparing these measurements with the first thermometer 309 and the first flow meter 311 of the inlet water, the measured temperature difference and flow rate difference can be obtained, respectively.

[0106] Based on the same concept, this application also provides a rotary valve 100 (see...). Figure 1 ), including the water-cooled structure of the rotary valve as described above.

[0107] Based on the same concept, see Figure 8 This application also provides a water cooling control method, applied to the water cooling system 300 as described above, the control method comprising:

[0108] The water-cooling system 300 uses detection elements to monitor relevant parameter values ​​in real time, compares the set values ​​with the real-time monitored values, and executes corresponding control commands.

[0109] When the measured temperature difference between the outlet and inlet of the cooling branch pipe 304 exceeds the preset temperature difference range, the water volume of the corresponding cooling branch pipe 304 is adjusted to ensure that the corresponding cooling part is cooled normally; otherwise, no operation is performed.

[0110] When the measured flow difference between the outlet and inlet of the cooling branch pipe 304 exceeds the preset range, check the leakage of the corresponding cooling branch pipe 304 to ensure that the corresponding cooling part is cooled normally; otherwise, do not perform the operation.

[0111] When the measured temperature difference between the outlet and inlet of multiple cooling branch pipes 304 exceeds the preset temperature difference range, or when the measured flow difference between the outlet and inlet of multiple cooling branch pipes 304 exceeds the preset flow difference range, the quench gas is activated for cooling.

[0112] Specifically, the control system presets a temperature difference range and a flow difference range. It compares the preset temperature difference range with the measured temperature difference, and the preset flow difference range with the measured flow difference, to execute corresponding control commands. When the measured temperature difference between the outlet and inlet of cooling branch pipe 304 exceeds the preset temperature difference range, the control system issues a command to adjust the water flow in the corresponding cooling branch pipe 304 to ensure normal cooling of the corresponding cooling component; otherwise, the above operation is not performed. When the measured flow difference between the outlet and inlet of cooling branch pipe 304 exceeds the preset flow difference range, the control system checks for leaks in the corresponding cooling branch pipe 304 to ensure normal cooling of the corresponding cooling component; otherwise, the above operation is not performed. When the measured temperature difference between the outlet and inlet of multiple cooling branch pipes 304 exceeds the preset temperature difference range, or the measured flow difference between the outlet and inlet of multiple cooling branch pipes 304 exceeds the preset flow difference range, the control system issues a command to activate quench air to cool and protect the rotary valve 100.

[0113] For example, relative to the third housing cooling water passage 208 and the fourth housing cooling water passage 209, if the given cooling water volume is the same, then the temperature difference between the outlet and inlet of the cooling branch pipe 304 of the first housing cooling water passage 206 and the second housing cooling water passage 207 will be greater than the temperature difference between the outlet and inlet of the third housing cooling water passage 208 and the fourth housing cooling water passage 209, because when the production line is in normal production, from... Figure 5 As you can see, when rotor 80 rotates counterclockwise, the material will come into contact with the interior of the housing in the corresponding areas of the first housing cooling water passage 206 and the second housing cooling water passage 207. However, when the material reaches the outlet, it has been completely discharged, so it will not come into contact with the interior of the housing in the corresponding areas of the third housing cooling water passage 208 and the fourth housing cooling water passage 209. At this time, the control system compares the preset temperature difference range value with the measured temperature difference value and adjusts the cooling water volume of the first housing cooling water passage 206 and the second housing cooling water passage 207 accordingly. This ensures consistent cooling effect across all parts of the rotary valve 100, extends equipment life, and does not affect the water cooling of other water passages, achieving energy-saving and environmentally friendly results.

[0114] Example 2: In another embodiment, see [reference needed] Figure 7Unlike Embodiment 1, the water cooling system 300 is provided with seven cooling branch pipes 304. Specifically, the drive shaft cooling water passage 201 is connected solely to the first cooling branch pipe 304; the working side flange cooling water passage 202 is connected in series with the working side stuffing box cooling water passage 203 and is also connected to the second cooling branch pipe 304; the drive side flange cooling water passage 204 is connected in series with the drive side stuffing box cooling water passage 205 and is also connected to the third cooling branch pipe 304; the first housing cooling water passage 206 is connected in series with the third housing cooling water passage 208 and is also connected to the fourth cooling branch pipe 304; the second housing cooling water passage 207 is connected in series with the fourth housing cooling water passage 209 and is also connected to the fifth cooling branch pipe 304; the fifth housing cooling water passage 210 is connected in series with the seventh housing cooling water passage 212 and is also connected to the sixth cooling branch pipe 304; and the sixth housing cooling water passage 211 is connected in series with the eighth housing cooling water passage 213 and is also connected to the seventh cooling branch pipe 304.

[0115] Specifically, other water channel partitioning methods can be formed through appropriate changes. For example, if the first transverse partition 191 is removed, the first shell cooling water channel 206 and the third cooling water channel 208 can be connected in series to form a single cooling water channel; if the second transverse partition 192 is removed, the second shell cooling water channel 207 and the fourth shell cooling water channel 209 can be connected in series to form a single cooling water channel; if the third transverse partition 193 is removed, the fifth shell cooling water channel 210 and the seventh shell cooling water channel 212 can be connected in series to form a single cooling water channel; if the fourth transverse partition 194 is removed, the sixth shell cooling water channel 211 and the eighth shell cooling water channel 213 can be connected in series to form a single cooling water channel.

[0116] Based on the production line operating conditions, the 13 cooling water paths distributed on the rotary valve 100 are connected in series and configured into 7 cooling branch pipes 304. After being output from the cooling water circulation unit 301, the cooling water sequentially passes through the main inlet pipe 302, the inlet tank 303, the inlet branch pipe 304a of the cooling branch pipe 304, each cooling water path of the rotary valve 100, the outlet branch pipe 304b of the cooling branch pipe 304, the outlet tank 305, and the main outlet pipe 306 before entering the cooling water circulation unit 301 for processing, thus forming a closed-loop water cooling system 300 to cool the rotary valve 100.

[0117] For production line conditions that are not exceptionally harsh and involve high temperatures, Embodiment 2 provides a simpler water-cooling system 300 than Embodiment 1, reducing the number of cooling branch pipes 304 from 13 to 7, thus simplifying the configuration of the water-cooling system 300. It should be noted that various water-cooling branch configurations can be achieved through different series or parallel connection schemes for the cooling water paths of the rotary valve 100, which will not be listed here.

[0118] In summary, the present invention provides a water-cooled structure for a rotary valve, a water-cooling system 300, a rotary valve 100, and a water-cooling control method. By studying the flow characteristics of materials within the rotary valve 100 and the differences in temperature impact on various parts of the rotary valve 100, the rotary valve 100 is rationally partitioned into multiple cooling water paths, avoiding problems such as cooling dead zones and high cooling water resistance caused by unreasonable water path partitioning. Secondly, by combining the control of the water-cooling system 300 and the control system, each cooling water path can be independently controlled. On the one hand, the cooling water volume can be adjusted according to the actual temperature differences of various parts of the rotary valve 100, resulting in uniform cooling effect for each component, which is beneficial to the overall lifespan and energy saving and environmental protection. In addition, the control system can perform timely closed-loop control based on real-time monitoring values ​​such as temperature, pressure, and flow rate of each cooling water path, ensuring the normal operation of the water-cooling system 300, or ensuring reliable operation of the production line even in extreme cases.

[0119] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A water-cooled structure for a rotary valve, the rotary valve comprising a rotary valve housing, a drive shaft rotatably disposed within the rotary valve housing, a drive-side flange and a drive-side stuffing box disposed on the drive side of the rotary valve housing, and a working-side flange and a working-side stuffing box disposed on the working side of the rotary valve housing, characterized in that, The water-cooling structure includes 13 cooling water channels, wherein the upper part of the rotary valve housing is provided with a feed port, and the feed port section of the rotary valve is also provided with an inspection hole. The drive shaft is equipped with a drive shaft cooling water channel; The working side flange and the transmission side flange are respectively provided with one cooling water circuit for the working side flange and one cooling water circuit for the transmission side flange. The working side stuffing box and the transmission side stuffing box are respectively provided with one cooling water circuit for the working side stuffing box and one cooling water circuit for the transmission side stuffing box. The rotary valve housing has eight cooling water channels distributed in different areas. These eight cooling water channels are designated as the first, second, third, fourth, fifth, sixth, seventh, and eighth cooling water channels. The first, second, third, and fourth cooling water channels are on the same side as the rotary valve's inspection port, while the fifth, sixth, seventh, and eighth cooling water channels are on the same side as the rotary valve's cooling air inlet. The inspection port is located on the opposite side of the cooling air inlet.

2. The water-cooling structure of the rotary valve according to claim 1, characterized in that, The drive shaft has an axially oriented inner bore, and a sleeve is inserted inside the inner bore. A rotary joint is connected to the front end of the sleeve. There is a gap between the sleeve and the inner bore of the drive shaft. The rotary joint is provided with a drive shaft water passage inlet and a drive shaft water passage outlet that are connected to the drive shaft cooling water passage. The drive shaft cooling water passage is formed by the inner bore of the drive shaft, the sleeve, and the rotary joint.

3. The water-cooling structure of the rotary valve according to claim 1, characterized in that, The working side flange cooling water passage is located inside the working side flange. The working side flange has a first flange water passage inlet and a first flange water passage outlet that communicate with the working side flange cooling water passage. The first flange water passage inlet is located at the lower center of the working side flange cooling water passage, and the first flange water passage outlet is located at the upper center of the working side flange cooling water passage.

4. The water-cooling structure of the rotary valve according to claim 1, characterized in that, The cooling water passage of the transmission side flange is located inside the transmission side flange. The transmission side flange has a second flange water passage inlet and a second flange water passage outlet that communicate with the cooling water passage of the transmission side flange. The second flange water passage inlet is located at the lower center of the cooling water passage of the transmission side flange, and the second flange water passage outlet is located at the upper center of the cooling water passage of the transmission side flange.

5. The water-cooling structure of the rotary valve according to claim 1, characterized in that, The working side packing box cooling water passage is located inside the working side packing box. The working side packing box has a first packing box water passage inlet and a first packing box water passage outlet that communicate with the working side packing box cooling water passage. The first packing box water passage inlet is located at the lower center of the working side packing box cooling water passage, and the first packing box water passage outlet is located at the upper center of the working side packing box cooling water passage.

6. The water-cooling structure of the rotary valve according to claim 1, characterized in that, The cooling water passage of the transmission-side stuffing box is located inside the transmission-side stuffing box. The transmission-side stuffing box has a second stuffing box water passage inlet and a second stuffing box water passage outlet that are connected to the transmission-side stuffing box cooling water passage. The second stuffing box water passage inlet is located at the lower center of the transmission-side stuffing box cooling water passage, and the second stuffing box water passage outlet is located at the upper center of the transmission-side stuffing box cooling water passage.

7. The water-cooled structure of the rotary valve according to claim 1, characterized in that, Each of the aforementioned shell cooling water channels has a shell water channel inlet and a shell water channel outlet. The shell water channel inlet is located at the lower center of the shell cooling water channel, and the shell water channel outlet is located at the upper center of the shell cooling water channel.

8. The water-cooled structure of the rotary valve according to claim 1, characterized in that, The first housing cooling water passage is located on the upper part of the working side of the rotary valve and on the same side as the inspection hole. It is formed by the rotary valve housing, the water passage outer shell plate, the first bent partition plate, the first vertical partition plate, the second vertical partition plate, and the first transverse partition plate. The water passage outer shell plate partially covers the rotary valve housing. The first bent partition plate is located on the upper part of the working side between the water passage outer shell plate and the rotary valve housing. The first vertical partition plate is located between the middle of the inlet of the rotary valve and the inspection hole. The second vertical partition plate is located between the inspection hole and the outlet of the rotary valve, and the second vertical partition plate and the first vertical partition plate are on the same plane. The first transverse partition plate is located between the middle of the working side flange and the second vertical partition plate.

9. The water-cooling structure of the rotary valve according to claim 8, characterized in that, The second housing cooling water passage is located on the upper part of the drive side of the rotary valve and on the same side as the inspection hole. It is formed by the rotary valve housing, the water passage outer shell plate, the second bent partition, the first vertical partition, the second vertical partition, and the second transverse partition. The second bent partition is located between the water passage outer shell plate and the rotary valve housing on the upper part of the drive side, and the second bent partition and the first bent partition are symmetrically arranged on both sides of the first vertical partition. The second transverse partition is located between the middle of the drive side flange and the second vertical partition, and the second transverse partition and the first transverse partition are symmetrically arranged on both sides of the second vertical partition.

10. The water-cooled structure of the rotary valve according to claim 9, characterized in that, The third housing cooling water passage is located on the lower part of the working side of the rotary valve and on the same side as the inspection hole. It is formed by the rotary valve housing, the water passage outer shell plate, the third bent partition plate, the second vertical partition plate and the first horizontal partition plate. The third bent partition plate is located on the lower part of the working side between the water passage outer shell plate and the rotary valve housing.

11. The water-cooled structure of the rotary valve according to claim 10, characterized in that, The fourth housing cooling water passage is located at the lower part of the transmission side of the rotary valve and on the same side as the inspection hole. It is formed by the rotary valve housing, the water passage outer shell plate, the fourth bent partition plate, the second vertical partition plate, and the second horizontal partition plate. The fourth bent partition plate is located at the lower part of the transmission side between the water passage outer shell plate and the rotary valve housing, and the fourth bent partition plate and the third bent partition plate are symmetrically arranged on both sides of the second vertical partition plate.

12. The water-cooling structure of the rotary valve according to claim 11, characterized in that, The fifth housing cooling water passage is located on the upper part of the drive side of the rotary valve and on the same side as the cooling gas inlet. It is formed by the rotary valve housing, the water passage outer shell plate, the second bent partition, the third vertical partition, the fourth vertical partition, and the third transverse partition. The third vertical partition is located between the middle of the rotary valve inlet and the cooling gas inlet. The fourth vertical partition is located between the cooling gas inlet and the rotary valve outlet. The fourth vertical partition and the third vertical partition are on the same plane. The third transverse partition is located between the middle of the drive side flange and the third vertical partition.

13. The water-cooled structure of the rotary valve according to claim 12, characterized in that, The sixth housing cooling water passage is located on the upper part of the working side of the rotary valve and on the same side as the cooling gas inlet. It is formed by the rotary valve housing, the water passage outer shell plate, the first bent partition, the third vertical partition, the fourth vertical partition, and the fourth transverse partition. The fourth transverse partition is located between the middle of the working side flange and the fourth vertical partition, and the fourth transverse partition and the third transverse partition are symmetrically arranged on both sides of the fourth vertical partition.

14. The water-cooled structure of the rotary valve according to claim 12, characterized in that, The seventh housing cooling water passage is located on the lower part of the drive side of the rotary valve and on the same side as the cooling air inlet. It is formed by the rotary valve housing, the water passage outer shell plate, the fourth bent partition, the fourth vertical partition and the third transverse partition.

15. The water-cooled structure of the rotary valve according to claim 13, characterized in that, The eighth housing cooling water passage is located on the lower part of the working side of the rotary valve and on the same side as the cooling air inlet. It is formed by the rotary valve housing, the water passage outer shell plate, the third bent partition, the fourth vertical partition and the fourth horizontal partition.

16. A water-cooling system, characterized in that, The system includes a cooling water circulation unit, an inlet main pipe, an inlet tank, cooling branch pipes, an outlet tank, and an outlet main pipe, connected in sequence to form a closed-loop water circuit, and a water-cooled structure with a rotary valve as described in any one of claims 1-15, wherein... The inlet of the main water inlet pipe is connected to the outlet of the cooling water circulation unit, and the outlet of the main water inlet pipe is connected to the water inlet tank. Downstream of the water inlet tank, a plurality of cooling branch pipes are connected in parallel. Each cooling branch pipe includes an inlet branch pipe and an outlet branch pipe. Each inlet branch pipe is connected to the inlet of each cooling water path of the rotary valve, and each outlet branch pipe is connected to the outlet of each cooling water path of the rotary valve. The downstream outlet branch pipes of the plurality of cooling branch pipes are connected to the water outlet tank, the downstream outlet tank is connected to the main water outlet pipe, and the outlet of the main water outlet pipe is connected to the inlet of the cooling water circulation unit. Multiple detection elements are installed on the closed-loop water circuit.

17. The water cooling system according to claim 16, characterized in that, The main water inlet pipe is equipped with a first pressure gauge and a first thermometer, and a first control valve is installed upstream and downstream of the first pressure gauge and the first thermometer. Each of the cooling branch pipes is equipped with a first flow meter on its inlet branch pipe, and a second control valve is installed upstream of each first flow meter and a first control valve is installed downstream of each first flow meter. Each of the cooling branch pipes is equipped with a second thermometer and a second flow meter, and a first control valve is installed upstream and downstream of the second thermometer and the second flow meter. A second pressure gauge is installed on the main water outlet pipe, and a first control valve is installed downstream of the second pressure gauge.

18. The water cooling system according to claim 17, characterized in that, The first control valve is a manual ball valve, and the second control valve is a pneumatic ball valve.

19. The water cooling system according to claim 16, characterized in that, There are 13 cooling branch pipes, each corresponding to one of the 13 cooling water lines of the rotary valve. The cooling water volume of each cooling branch pipe can be controlled independently.

20. A rotary valve, characterized in that, The rotary valve includes a water-cooled structure as described in any one of claims 1-15.

21. A water-cooling control method, characterized in that, The control method, applied to the water cooling system as described in any one of claims 16-19, comprises: The water-cooling system uses sensors to monitor relevant parameter values ​​in real time, compares the setpoints with the real-time monitored values, and executes corresponding control commands. When the measured temperature difference between the outlet and inlet of the cooling branch pipe exceeds the preset temperature difference range, adjust the water volume of the corresponding cooling branch pipe to ensure that the corresponding cooling part is cooled normally; otherwise, do not perform the operation. When the measured flow difference between the outlet and inlet of the cooling branch pipe exceeds the preset range, check for leaks in the corresponding cooling branch pipe and ensure that the corresponding cooling part is cooled normally; otherwise, do not perform the operation. When the measured temperature difference between the outlet and inlet of multiple cooling branch pipes exceeds the preset temperature difference range, or the measured flow difference between the outlet and inlet of multiple cooling branch pipes exceeds the preset flow difference range, the quench gas is activated for cooling.

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