Control valve capable of simultaneously carrying out heat exchange and sterilization on line

Abstract

The utility model discloses a control valve capable of simultaneously carrying out heat exchange and sterilization on line, and particularly relates to the technical field of control valves, the control valve comprises a valve seat, a material conveying pipe is arranged in the valve seat, and the two ends of the material conveying pipe penetrate through the upper wall and the lower wall of the valve seat. Meanwhile, steam can push a fixing block to drive a sealing seat to enter a sealing opening, a sealing plug moves out of a discharging cavity, materials can be conveyed, when conveying of steam or chilled water is stopped, the sealing seat and the sealing plug can be reset under the elastic force of a spring, and the effect of controlling a valve to be opened and closed can be achieved; meanwhile, the steam or the chilled water can be recycled by using the discharge pipe and the three-way pipe, and the steam or the chilled water can be selectively introduced as required to realize the effect of heating or cooling the materials; through the sealing assembly, the sealing seat can be supported and guided, it is ensured that the sealing seat is right opposite to the sealing opening, and the sealing performance between the sealing seat and the sealing opening is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control valves, in particular to a control valve which can simultaneously perform heat exchange and disinfection and sterilization online. Background Art

[0002] Nowadays, the use of control valves is more common in industry. Control valves are also called valves. Valves are control components in pipeline fluid delivery systems. They are used to change the pipeline section and the flow direction of the medium. They have functions such as diversion, shutoff, throttling, check, diversion or overflow pressure relief. Valves used for fluid control, from the simplest shutoff valve to various valves used in extremely complex automatic control systems, have a wide variety of varieties and specifications. The nominal diameter of the valve ranges from extremely small instrument valves to industrial pipeline valves with a diameter of 10m. It can be used to control the flow of various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metals and radioactive fluids. The working pressure of the valve can range from 0.0013MPa to 1000MPa of ultra-high pressure, and the working temperature can reach ultra-low temperatures of c-270℃ to high temperatures of 1430℃. The control of the valve can adopt a variety of transmission methods, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic, electromagnetic hydraulic, electro-hydraulic, gas-hydraulic, spur gear, bevel gear drive, etc.; under the action of pressure, temperature or other forms of sensor signals, it can act according to predetermined requirements, or simply open or close without relying on sensor signals. The valve relies on a drive or automatic mechanism to make the opening and closing parts move up and down, slide, swing or rotate, thereby changing the size of its flow area to achieve its control function.

[0003] At present, most of the control valves on the market have relatively simple functions. They can usually only control the opening and closing and regulating the flow of materials. They are inconvenient to use and have relatively poor practicality. Utility Model Content

[0004] The utility model aims to provide a control valve which can simultaneously perform heat exchange and sterilization online, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a control valve that can perform heat exchange and disinfection and sterilization online at the same time, comprising a valve seat, a feed pipe is arranged in the valve seat, and the two ends of the feed pipe pass through the upper and lower walls of the valve seat, a discharge cavity, a feed cavity and a feed cavity are distributed in the upper and lower parts of the feed pipe, and the discharge cavity and the feed cavity are both L-shaped, a fixed seat is arranged on the inner wall of the valve seat away from the feed pipe, a fixed block is arranged on one side of the fixed seat, a bellows is arranged between the fixed seat and the fixed block, a spring is arranged in the bellows, one end of the fixed block is connected to a sealing seat, a sealing port connected to the feed cavity is opened on the side wall of the feed pipe, and the sealing port is adapted to the sealing seat, one end of the sealing seat is connected to a fixing rod in the feed cavity, and one end of the fixing rod is connected to a sealing plug in the discharge cavity, the valve seat is provided with a sealing assembly, and a three-way pipe is connected to the bottom of the fixed seat.

[0006] Furthermore, the sealing assembly includes a sliding rod, and the sliding rod is arranged on one side of the material delivery pipe in the valve seat, a sliding block is sleeved on the outer side of the sliding rod, and the lower end of the sliding block is connected to the fixed block, a gas cylinder is arranged on one side of the material delivery pipe in the valve seat, a push rod and a piston are arranged in the gas cylinder, and the piston is fixedly connected to one end of the push rod near the material delivery pipe, the other end of the push rod is connected to a connecting rod outside the gas cylinder, and one end of the connecting rod is connected to the sliding block, a catheter is arranged in the fixed block and the sealing seat, a sealing airbag is embedded and installed on the outer wall of the sealing seat, and the sealing airbag is connected to one end of the catheter, one end of the catheter is connected to a hose outside the fixed block, and the hose is connected to the gas cylinder, and the outer side of the material delivery pipe is embedded and installed on the outer side of the sealing port Sealing airbag 2 is connected with the air cylinder through conduit 2, and conduit 2 is located inside the side wall of the feed pipe. One side of the fixed block and the inner wall of the sealing port are respectively provided with sealing groove 2 and sealing groove 3 adapted to sealing airbag 2 and sealing airbag 1. Through the sealing component, it can be linked with the fixed block. When the sealing seat moves into the sealing port to block and close, the sealing airbag 1 and the sealing airbag 2 can be inflated to make one end of the sealing airbag 1 and the sealing airbag 2 bulge into the sealing groove 1 and the sealing groove 2 to achieve the sealing between the sealing seat and the inner wall of the sealing port, and between the fixed block and the feed pipe, thereby improving the sealing effect between the sealing seat and the sealing port. At the same time, the fixed block can be supported and guided to make its movement stable.

[0007] Furthermore, the lower end of the three-way pipe passes through the bottom of the valve seat, and a discharge pipe is provided on the side of the bottom of the valve seat away from the three-way pipe. The upper end of the three-way pipe is connected to the inner side of the fixed seat to transport steam or chilled water into the bellows and the valve seat, and cooperates with the discharge pipe to be connected to the external equipment for transporting steam or chilled water, so as to realize the recycling of steam or chilled water for heat exchange.

[0008] Furthermore, the two ends of the bellows are respectively fixedly connected to the fixed block and the fixed seat, and the two ends of the spring are respectively fixedly connected to the fixed block and the inner wall of the fixed seat, so that the elastic force of the spring can be used to reset the sealing seat and the sealing plug, thereby realizing the sealing plug closing the discharge cavity and opening the sealing port.

[0009] Furthermore, the slider is slidably connected to the slide rod, the connecting rod is L-shaped, the outer wall of the piston is sleeved with a sealing ring 1, and the outer wall of the sealing seat is sleeved with a sealing ring 2 on the side of the sealing airbag 1 away from the fixed block to improve the sealing performance.

[0010] Furthermore, the fixing rod is L-shaped, the sealing plug is located at the connection between the discharge chamber and the feed chamber, and the sealing plug is in contact with the inner wall of the discharge chamber, so that the sealing plug and the sealing seat are linked and move synchronously with the sealing seat to realize the opening and closing of the discharge chamber.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0012] 1. The utility model can pass steam through the three-way pipe, so that the steam enters the bellows and the valve seat at the same time, so that part of the steam enters the feed pipe to sterilize the inside thereof, and at the same time, the steam will push the fixed block to drive the sealing seat to move, so that the sealing seat enters the sealing port to achieve closure, and at the same time, it will drive the fixed rod to pull the sealing plug to move out of the discharge cavity, so that the material can be transported and circulated through the feed pipe, and the valve switch can be controlled. When the steam or chilled water is stopped, the sealing seat and the sealing plug can be reset under the elastic force of the spring, so that the discharge cavity is closed and the sealing port is opened. At the same time, the use of the discharge pipe and the three-way pipe can make the steam or chilled water circulated, and the steam or chilled water can be selected according to the needs to achieve the effect of heating or cooling the material. It has multiple functions and is highly practical.

[0013] 2. The utility model can support and guide the fixed block through the sealing component to ensure that the sealing seat is directly opposite to the sealing port to avoid deviation affecting its normal use. At the same time, it can inflate the sealing airbags 1 and 2 to make them bulge, so as to fit closely with the inner walls of the sealing grooves 1 and 2, thereby improving the sealing between the sealing seat and the sealing port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model in the feeding state;

[0017] Figure 3 It is a schematic diagram of the partial structure between the gas cylinder and the push rod of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure between the fixing seat, the bellows and the spring of the utility model;

[0019] Figure 5 This utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0020] In the figure: 1. valve seat; 2. feed pipe; 3. discharge chamber; 4. feed chamber; 5. feed chamber; 6. sealing port; 7. tee pipe; 8. discharge pipe; 9. fixed seat; 10. fixed block; 11. bellows; 12. spring; 13. sealing seat; 14. fixed rod; 15. sealing plug; 16. sliding rod; 17. sliding block; 18. connecting rod; 19. air cylinder; 20. push rod; 21. piston; 22. sealing airbag 1; 23. sealing airbag 2; 24. catheter 1; 25. catheter 2. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 - Figure 5 A control valve that can perform heat exchange and disinfection and sterilization online at the same time is shown, comprising a valve seat 1, a feed pipe 2 is arranged in the valve seat 1, and the two ends of the feed pipe 2 pass through the upper and lower walls of the valve seat 1, a discharge cavity 3, a feed cavity 4 and a feed cavity 5 are distributed in the feed pipe 2, and the discharge cavity 3 and the feed cavity 4 are both L-shaped, a fixed seat 9 is arranged on the inner wall of the valve seat 1 away from the feed pipe 2, a fixed block 10 is arranged on one side of the fixed seat 9, a bellows 11 is arranged between the fixed seat 9 and the fixed block 10, a spring 12 is arranged in the bellows 11, a sealing seat 13 is connected to one end of the fixed block 10, a sealing port 6 communicating with the feed cavity 4 is opened on the side wall of the feed pipe 2, and the sealing port 6 is adapted to the sealing seat 13, one end of the sealing seat 13 is connected to a fixing rod 14 in the feed cavity 4, and one end of the fixing rod 14 is connected to a sealing plug 15 in the discharge cavity 3, the valve seat 1 is provided with a sealing assembly, and a three-way pipe 7 is connected to the bottom of the fixed seat 9.

[0023] In this example, the sealing assembly includes a slide rod 16, and the slide rod 16 is arranged on one side of the feed pipe 2 in the valve seat 1, a slider 17 is sleeved on the outside of the slide rod 16, and the lower end of the slider 17 is connected to the fixed block 10, a gas cylinder 19 is provided on one side of the feed pipe 2 in the valve seat 1, a push rod 20 and a piston 21 are provided in the gas cylinder 19, and the piston 21 is fixedly connected to one end of the push rod 20 close to the feed pipe 2, the other end of the push rod 20 is connected to a connecting rod 18 outside the gas cylinder 19, and one end of the connecting rod 18 is connected to the slider 17, a conduit 24 is provided in the fixed block 10 and the sealing seat 13, a sealing air bag 22 is embedded and installed on the outer wall of the sealing seat 13, and the sealing air bag 22 is connected to one end of the conduit 24, one end of the conduit 24 is connected to a hose outside the fixed block 10, and the hose is connected to the gas cylinder 19, and the outer side of the feed pipe 2 is embedded on the outer side of the sealing port 6 A sealing airbag 23 is installed, and the sealing airbag 23 is connected with the air cylinder 19 through a conduit 25, and the conduit 25 is located inside the side wall of the feed pipe 2. A sealing groove 2 and a sealing groove 3 adapted to the sealing airbag 23 and the sealing airbag 1 22 are respectively opened on one side of the fixed block 10 and the inner wall of the sealing port 6. Through the sealing component, it can be linked with the fixed block 10. When the sealing seat 13 moves into the sealing port 6 to block and close the inner part, the sealing airbag 1 22 and the sealing airbag 2 23 can be inflated, so that one end of the sealing airbag 1 22 and the sealing airbag 2 23 bulges into the sealing groove 1 and the sealing groove 2 to achieve sealing between the sealing seat 13 and the inner wall of the sealing port 6, and between the fixed block 10 and the feed pipe 2, thereby improving the sealing effect between the sealing seat 13 and the sealing port 6. At the same time, the fixed block 10 can be supported and guided to make its movement stable. In this example, the lower end of the three-way pipe 7 passes through the bottom of the valve seat 1, and a discharge pipe 8 is provided on the side of the bottom of the valve seat 1 away from the three-way pipe 7. The upper end of the three-way pipe 7 is connected to the inner side of the fixed seat 9, so as to transport steam or chilled water to the bellows 11 and the valve seat 1, and the discharge pipe 8 is connected to the external equipment for transporting steam or chilled water, so as to realize the recycling of steam or chilled water, so as to carry out heat exchange. In this example, the two ends of the bellows 11 are fixedly connected to the fixed block 10 and the fixed seat 9, respectively, and the two ends of the spring 12 are fixedly connected to the fixed block 10 and the inner wall of the fixed seat 9, respectively, so as to utilize the elastic force of the spring 12 to reset the sealing seat 13 and the sealing plug 15, so as to realize the sealing of the discharge chamber 3 by the sealing plug 15 and the opening of the sealing port 6. In this example, the slider 17 is slidably connected to the slide rod 16, the connecting rod 18 is L-shaped, the outer wall of the piston 21 is sleeved with a sealing ring 1, and the outer wall of the sealing seat 13 is sleeved with a sealing ring 2 on the side of the sealing airbag 1 22 away from the fixed block 10, so as to improve the sealing performance. In this example, the fixing rod 14 is L-shaped, the sealing plug 15 is located at the connection between the discharge chamber 3 and the feed chamber 4, and the sealing plug 15 is in contact with the inner wall of the discharge chamber 3, so that the sealing plug 15 and the sealing seat 13 can be linked and move synchronously with the sealing seat 13 to realize the opening and closing of the discharge chamber 3.

[0024] The working principle of the utility model is as follows: when in use, a cycle is formed by connecting the three-way pipe 7 and the discharge pipe 8 to the equipment for conveying steam or chilled water. When steam is introduced into the three-way pipe 7, part of the steam will enter the valve seat 1 through the opening at one end of the three-way pipe 7, and part of the steam will enter the inner side of the fixed seat 9 and be conveyed to the inner side of the bellows 11, so that the steam will push the fixed block 10 to approach the feed pipe 2. At the same time, part of the steam entering the valve seat 1 will enter the feed pipe 2 through the sealing port 6, thereby sterilizing the inside thereof, until the fixed block 10 pushes the sealing seat 13 into the sealing port 6 and closes the sealing port 6, and then the feed pipe 2 can flow therethrough. The material is conveyed through the steam, that is, when sterilizing, the material is not passed to avoid steam contamination of the material. At the same time, the sealing seat 13 will drive the fixing rod 14 to drive the sealing plug 15, so that the sealing plug 15 moves into the feeding cavity 4, so that the material can enter and exit the feeding pipe 2. When the material is not needed to be conveyed and circulated, the steam delivery is stopped to make the fixing block 10 reset under the elastic force of the spring 12, thereby driving the sealing seat 13 to reset and move out of the sealing port 6, and driving the fixing rod 14 and the sealing plug 15, so that the sealing plug 15 moves back into the discharge cavity 3 to isolate it, which can realize the switching effect of the control valve. At the same time, the steam introduced can also sterilize the valve seat 1 and the inside of the feeding pipe 2, and at the same time The steam delivered during the process can heat up the material delivered in the delivery pipe 2, and if the chilled water is passed into the three-way pipe 7, the material in the delivery pipe 2 can be cooled down. The circulation system composed of the three-way pipe 7 and the discharge pipe 8 and the external equipment for delivering steam or chilled water can continuously cool down or heat up the material, so that it has the function of cold and heat exchange and is easy to use. When the sealing seat 13 is moved to the sealing port 6 to seal it, the fixed block 10 drives the slider 17 to slide along the slide rod 16, and the slider 17 drives the connecting rod 18, so that the connecting rod 18 drives the push rod 20 to drive the piston 21 to move toward the delivery pipe 2, so that the piston 21 squeezes and pushes the gas The body is respectively guided into the conduit 1 24 and the conduit 25, and then the gas is guided into the sealing airbag 1 22 and the sealing airbag 2 23 to make them bulge, so that the bulging side wall of the sealing airbag 1 22 and the sealing airbag 2 23 is tightly fitted with the inner wall of the sealing groove 1 and the sealing groove 2, thereby improving the sealing between the sealing seat 13 and the feeding pipe 2. When the fixing block 10 is reset under the elastic force of the spring 12, the slider 17 drives the connecting rod 18 to pull the push rod 20 to drive the piston 21 to suck air, so that the gas in the sealing airbag 1 22 and the sealing airbag 2 23 is extracted, and the bulging parts of the sealing airbag 1 22 and the sealing airbag 2 23 are restored to their initial states, which are convenient to use and more practical.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A control valve capable of simultaneously performing heat exchange and sterilization online, comprising a valve seat (1), characterized in that: A material delivery pipe (2) is provided in the valve seat (1), and both ends of the material delivery pipe (2) penetrate the upper and lower walls of the valve seat (1). A discharge cavity (3), a material delivery cavity (4) and a feed cavity (5) are provided in the upper and lower parts of the material delivery pipe (2), and the discharge cavity (3) and the material delivery cavity (4) are both L-shaped. A fixed seat (9) is provided on the inner wall of the valve seat (1) away from the material delivery pipe (2), and a fixed block (10) is provided on one side of the fixed seat (9). A bellows (11) is provided between the fixed seat (9) and the fixed block (10), and the bellows (11) is provided with a spring (12), one end of the fixed block (10) is connected to a sealing seat (13), the side wall of the feed pipe (2) is provided with a sealing port (6) connected to the feed cavity (4), and the sealing port (6) is adapted to the sealing seat (13), one end of the sealing seat (13) is connected to a fixing rod (14) in the feed cavity (4), and one end of the fixing rod (14) is connected to a sealing plug (15) in the discharge cavity (3), the valve seat (1) is provided with a sealing assembly, and the bottom of the fixed seat (9) is connected to a three-way pipe (7).

2. A control valve capable of performing heat exchange and sterilization online at the same time according to claim 1, characterized in that: The sealing assembly comprises a slide rod (16), and the slide rod (16) is arranged on one side of the material delivery pipe (2) in the valve seat (1), a slide block (17) is sleeved on the outer side of the slide rod (16), and the lower end of the slide block (17) is connected to the fixed block (10), a gas cylinder (19) is arranged on one side of the material delivery pipe (2) in the valve seat (1), a push rod (20) and a piston (21) are arranged in the gas cylinder (19), and the piston (21) is fixedly connected to one end of the push rod (20) close to the material delivery pipe (2), the other end of the push rod (20) is connected to a connecting rod (18) outside the gas cylinder (19), and one end of the connecting rod (18) is connected to the slide block (17), and a guide tube (10) is arranged in the fixed block (10) and the sealing seat (13). 24), a sealing airbag 1 (22) is embedded and installed on the outer wall of the sealing seat (13), and the sealing airbag 1 (22) is connected to one end of a conduit 1 (24), one end of the conduit 1 (24) is connected to a hose outside the fixed block (10), and the hose is connected to the air cylinder (19), a sealing airbag 2 (23) is embedded and installed on the outer side of the sealing port (6) of the feed pipe (2), the sealing airbag 2 (23) is connected to the air cylinder (19) through a conduit 2 (25), and the conduit 2 (25) is located inside the side wall of the feed pipe (2), and a sealing groove 2 and a sealing groove 3 adapted to the sealing airbag 2 (23) and the sealing airbag 1 (22) are respectively opened on one side of the fixed block (10) and the inner wall of the sealing port (6).

3. The control valve capable of performing heat exchange and sterilization online at the same time according to claim 1, characterized in that: The lower end of the three-way pipe (7) passes through the bottom of the valve seat (1), a discharge pipe (8) is provided on the side of the bottom of the valve seat (1) away from the three-way pipe (7), and the upper end of the three-way pipe (7) is connected to the inner side of the fixed seat (9).

4. The control valve capable of performing heat exchange and sterilization online at the same time according to claim 2, characterized in that: The two ends of the bellows (11) are respectively fixedly connected to the fixing block (10) and the fixing seat (9), and the two ends of the spring (12) are respectively fixedly connected to the fixing block (10) and the inner wall of the fixing seat (9).

5. The control valve capable of performing heat exchange and sterilization online at the same time according to claim 2, characterized in that: The slider (17) is slidably connected to the slide rod (16), the connecting rod (18) is L-shaped, the outer wall of the piston (21) is sleeved with a sealing ring 1, and the outer wall of the sealing seat (13) is sleeved with a sealing ring 2 on the side of the sealing airbag 1 (22) away from the fixed block (10).

6. The control valve capable of performing heat exchange and sterilization online at the same time according to claim 2, characterized in that: The fixing rod (14) is L-shaped, the sealing plug (15) is located at the connection between the discharge cavity (3) and the feed cavity (4), and the sealing plug (15) is in contact with the inner wall of the discharge cavity (3).

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