CN114087390A

CN114087390A - Multi-stage sealed automatic control valve for carbon dioxide refrigeration system

Info

Publication number: CN114087390A
Application number: CN202111474350.8A
Authority: CN
Inventors: 刘德刚; 石林
Original assignee: Shandong Lushang Ice Cores Building Design Co ltd
Current assignee: Shandong Lushang Ice Cores Building Design Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-02-25

Abstract

The invention provides a multi-stage sealed automatic control valve for a carbon dioxide refrigeration system, which relates to the technical field of refrigeration systems. The multi-stage sealed self-control valve based on carbon dioxide refrigeration system includes a valve body, a valve stem structure and a first valve tube, the upper end of the valve body is provided with a second valve tube, the inside of the second valve tube is opposite to the valve The upper end of the body is provided with a second group of sealing gaskets, and a sealing disk is arranged above the second group of sealing gaskets. A telescopic rod is provided on the side, a spring is provided on the side of the lower end of the telescopic rod, a buffer block is provided on the lower end of the telescopic rod, a sensor is provided on the lower end surface of the buffer block, and the first valve tube is provided on the second On the upper end of the valve tube, the inner wall of the first valve tube is provided with a limiting block, and the upper end of the limiting block is provided with a first group of sealing gaskets. Through this valve, automatic control and multi-stage sealing are effectively realized, which is easy to replace.

Description

Multistage sealed self-control valve of carbon dioxide refrigerating system

Technical Field

The invention relates to the technical field of refrigeration systems, in particular to a multistage sealing self-control valve of a carbon dioxide refrigeration system.

Background

The refrigerating principle of the refrigerator is that the compressor is used for compressing steam with lower pressure into steam with higher pressure, so that the volume of the steam is reduced, and the pressure is increased. The compressor sucks working medium steam with lower pressure from the evaporator, the working medium steam with lower pressure is sent into the condenser after the pressure of the working medium steam is increased, the working medium steam is condensed into liquid with higher pressure in the condenser, the liquid with lower pressure is sent into the evaporator after the liquid is throttled by the throttle valve, the liquid is evaporated by absorbing heat in the evaporator to form steam with lower pressure, and the steam is sent into an inlet of the compressor, so that the refrigeration cycle is completed.

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The use of the valve of the carbon dioxide refrigeration system at the present stage is still insufficient, the sealing effect is not good, the regulation and control use is insufficient, and the multi-stage sealing and automatic control use cannot be realized, so that the problem needs to be solved by the multi-stage sealing automatic control valve of the carbon dioxide refrigeration system.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a multistage sealing self-control valve of a carbon dioxide refrigerating system, and solves the problem of poor sealing effect of the valve of the refrigerating system.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the multistage sealing automatic control valve of the carbon dioxide refrigeration system comprises a valve body, a valve rod structure and a first valve pipe, wherein a second valve pipe penetrates through the upper end of the valve body, a second group of sealing gaskets are arranged in the second valve pipe and in a penetrating position relative to the upper end of the valve body, a sealing disk is arranged above the second group of sealing gaskets, buffer grooves are arranged at the lower ends of the two sides of the sealing disk in a penetrating manner, telescopic rods are arranged on the two sides of the upper end in the buffer grooves, springs are arranged on the side surfaces of the lower ends of the telescopic rods, buffer blocks are arranged at the lower ends of the telescopic rods, inductors are arranged on the lower end surfaces of the buffer blocks, the first valve pipe is arranged at the upper end of the second valve pipe, a limiting block is arranged on the inner wall of the first valve pipe, and a first group of sealing gaskets is arranged at the upper end of the limiting block;

the valve rod structure includes the first body of rod and the second body of rod, the lower extreme of the second body of rod is provided with ball case, valve rod structure sets up the inside at first valve pipe and second valve pipe, valve rod structure runs through the sealed pad of first group, the sealed pad of second group and sealed dish, the upper end of first valve pipe is provided with the rolling disc, the lower extreme of rolling disc is provided with the installed part, the installed part is connected with the first body of rod, the surface of first valve pipe is provided with the mounting disc, the upper end both sides of mounting disc all are provided with the support column, the upper end of support column is provided with the supporting disk, the lower extreme middle part of supporting disk is provided with the motor, the lower extreme that the lower extreme of motor extended there is motor shaft and motor shaft is provided with the connecting rod, the lower extreme of connecting rod is connected with the rolling disc.

Preferably, the two ends of the valve body are provided with connecting pipes in a penetrating manner, and the port of each connecting pipe is provided with a connecting method disc.

Preferably, the connection pad is arranged at the joint of the first valve pipe and the second valve pipe, mounting holes are formed in the two sides of the connection pad in a penetrating mode, and mounting rods are arranged at the mounting holes.

Preferably, the upper end of the supporting plate is provided with a display screen.

Preferably, the lower extreme of the first body of rod is provided with the threaded rod, the upper end of the second body of rod is provided with the screw hole, the second body of rod sets up the lower extreme at the first body of rod, and the threaded rod sets up the inside at the screw hole.

Preferably, the ball valve element is arranged inside the valve body.

Preferably, the first group of gaskets and the second group of gaskets are provided with three layers.

Preferably, the lower end of the connecting disc is rotatably connected with the upper end of the first valve pipe.

(III) advantageous effects

The invention provides a multistage sealing self-control valve of a carbon dioxide refrigerating system. The method has the following beneficial effects:

1. multistage sealed automatic control valve of carbon dioxide refrigerating system, the department that comes to go on valve body and second valve pipe through the second group is sealed to be protected and is used, and carries out the sealed use of second grade at the second valve pipe through sealed dish, and comes the air conditioning to leak through the inductor and respond to the use, forms tertiary sealed use through the first group of sealed pad of first valve pipe department, and can effectively form sealed effect to improve the leakproofness of valve when using.

2. The multistage sealed automatic control valve of the carbon dioxide refrigerating system drives the connecting rod to rotate through the motor, so that the rotating disc is driven to rotate for use, the valve rod structure is driven to rotate for use, the use of the ball valve core is adjusted, the conveying quantity of cold air is controlled, automatic control adjustment is performed, and the use efficiency is improved.

3. The multistage sealed automatic control valve of the carbon dioxide refrigerating system can effectively disassemble, assemble and replace a valve rod structure, so that the replacement cost is reduced, the valve pipe can be effectively disassembled, assembled and used, and the internal structure of the valve pipe can be conveniently maintained and used.

Drawings

FIG. 1 is an external view of a multi-stage sealed self-control valve of a carbon dioxide refrigeration system according to the present invention;

FIG. 2 is a schematic view of the valve stem structure of the multistage sealing self-control valve of the carbon dioxide refrigerating system of the present invention;

FIG. 3 is a schematic view of the internal structure of the multistage sealed self-control valve of the carbon dioxide refrigeration system of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1;

fig. 5 is an enlarged schematic view of the structure at B in fig. 3.

Wherein, 1, connecting the flange; 2. a valve body; 3. a connecting pipe; 4. rotating the disc; 5. a support disc; 6. a display screen; 7. an electric motor; 8. a support pillar; 9. mounting a disc; 10. a valve stem structure; 101. a first rod body; 102. a threaded rod; 103. a threaded hole; 104. a second rod body; 11. a ball valve core; 12. a limiting block; 13. a first set of gaskets; 14. a connecting rod; 15. a mounting member; 16. a first valve tube; 17. a second valve tube; 18. a second set of gaskets; 19. an inductor; 20. a buffer block; 21. sealing the disc; 22. a telescopic rod; 23. a buffer tank; 24. a spring; 25. mounting a rod; 26. a connecting disc; 27. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1 to 5, the multistage sealing automatic control valve for a carbon dioxide refrigeration system according to an embodiment of the present invention includes a valve body 2, a valve rod structure 10, and a first valve tube 16, wherein two ends of the valve body 2 are respectively provided with a connecting tube 3 in a penetrating manner, a port of the connecting tube 3 is provided with a connecting method disc 1 for connecting an inlet and an outlet of the refrigeration system to control the inlet and the outlet of cold air, an upper end of the valve body 2 is provided with a second valve tube 17 in a penetrating manner, a second set of sealing gaskets 18 is provided in the second valve tube 17 and at a penetrating position corresponding to an upper end of the valve body 2, a sealing disc 21 is provided above the second set of sealing gaskets 18, lower ends of two sides of the sealing disc 21 are provided with a buffer groove 23 in a penetrating manner, two sides of an inner upper end of the buffer groove 23 are provided with telescopic rods 22, a side surface of a lower end of the telescopic rod 22 is provided with a spring 24, a lower end of the telescopic rod 22 is provided with a buffer block 20, and a lower end surface of the buffer block 20 is provided with an inductor 19, the sealing protection of the valve body 2 and the second valve pipe 17 is performed through the second group of sealing gaskets 18, the secondary sealing of the second valve pipe 17 is performed through the sealing discs 21, the cold air leakage is sensed through the sensor 19, and therefore the sealing performance of the second group of sealing gaskets 18 is monitored;

the first valve pipe 16 is arranged at the upper end of the second valve pipe 17, connecting discs 26 are arranged at the connecting positions of the first valve pipe 16 and the second valve pipe 17, mounting holes 27 are formed in two sides of each connecting disc 26 in a penetrating mode, mounting rods 25 are arranged at the mounting holes 27, the first valve pipe 16 and the second valve pipe 17 can be effectively mounted, connected and used, the second valve pipe 17 can be conveniently dismounted and maintained and replaced, a limiting block 12 is arranged on the inner wall of the first valve pipe 16, a first group of sealing gaskets 13 are arranged at the upper end of the limiting block 12, three-level sealing is formed through the first group of sealing gaskets 13 at the first valve pipe 16, and a sealing effect can be effectively formed;

the valve rod structure 10 includes a first rod 101 and a second rod 104, wherein a threaded rod 102 is disposed at a lower end of the first rod 101, a threaded hole 103 is disposed at an upper end of the second rod 104, the second rod 104 is disposed at a lower end of the first rod 101, and the threaded rod 102 is arranged inside the threaded hole 103, the valve rod structure 10 can be effectively disassembled, assembled and replaced, therefore, the replacement cost is reduced, the lower end of the second rod body 104 is provided with the ball valve core 11, the ball valve core 11 is arranged inside the valve body 2, the valve rod structure 10 is arranged inside the first valve pipe 16 and the second valve pipe 17, the first group of sealing gaskets 13, the second group of sealing gaskets 18 and the sealing gaskets 21 are penetrated by the valve rod structure 10, the first group of sealing gaskets 13 and the second group of sealing gaskets 18 are respectively provided with three layers to improve the sealing property, the valve rod structure 10 is used at the penetrating position of the first group of sealing gaskets 13, the second group of sealing gaskets 18 and the sealing gaskets 21 in a rotating mode;

the upper end of a first valve pipe 16 is provided with a rotating disc 4, the lower end of the rotating disc 4 is provided with an installation part 15, the installation part 15 is connected with a first rod body 101, the outer surface of the first valve pipe 16 is provided with an installation disc 9, two sides of the upper end of the installation disc 9 are both provided with support columns 8, the upper end of each support column 8 is provided with a support disc 5, the upper end of each support disc 5 is provided with a display screen 6, the middle part of the lower end of each support disc 5 is provided with a motor 7, the lower end of each motor 7 extends to form a motor shaft, the lower end of each motor shaft is provided with a connecting rod 14, the lower end of each connecting rod 14 is connected with the rotating disc 4, the lower end of each connecting disc 26 is rotatably connected with the upper end of the first valve pipe 16, the connecting rods 14 are driven to rotate by the motors 7, thereby drive the rolling disc 4 to rotate and use to drive the valve rod structure 10 to rotate and use, come to adjust the use of ball case 11, control the delivery capacity of cold air.

The working principle is as follows: the department of valve body 2 and second valve pipe 17 is sealed through the sealed pad 18 of second group and is protected the use, and carry out the sealed use of second grade at second valve pipe 17 through sealed dish 21, and come the cold air leakage through inductor 19 and respond to the use, form tertiary sealed use through the first sealed pad 13 of first valve pipe 16 department, and can effectively form sealed effect, drive connecting rod 14 through motor 7 and rotate, thereby it rotates the use to drive rolling disc 4, thereby it rotates the use to drive valve rod structure 10, adjust the use of ball case 11, come the control cold air's delivery volume.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Multistage sealed automatic control valve of carbon dioxide refrigerating system, including valve body (2), valve rod structure (10) and first valve pipe (16), its characterized in that: a second valve pipe (17) penetrates through the upper end of the valve body (2), a second group of sealing gaskets (18) is arranged in the second valve pipe (17) and at the penetrating position relative to the upper end of the valve body (2), and a sealing disc (21) is arranged above the second group of sealing gaskets (18), the lower ends of the two sides of the sealing disc (21) are provided with buffer grooves (23) in a penetrating way, two sides of the upper end inside the buffer groove (23) are provided with telescopic rods (22), a spring (24) is arranged on the side surface of the lower end of the telescopic rod (22), a buffer block (20) is arranged at the lower end of the telescopic rod (22), the lower end face of the buffer block (20) is provided with an inductor (19), the first valve pipe (16) is arranged at the upper end of the second valve pipe (17), a limiting block (12) is arranged on the inner wall of the first valve pipe (16), and a first group of sealing gaskets (13) is arranged at the upper end of the limiting block (12);

the valve rod structure (10) comprises a first rod body (101) and a second rod body (104), a ball valve core (11) is arranged at the lower end of the second rod body (104), the valve rod structure (10) is arranged inside a first valve pipe (16) and a second valve pipe (17), a first group of sealing gaskets (13), a second group of sealing gaskets (18) and a sealing disk (21) penetrate through the valve rod structure (10), a rotating disk (4) is arranged at the upper end of the first valve pipe (16), a mounting part (15) is arranged at the lower end of the rotating disk (4), the mounting part (15) is connected with the first rod body (101), an installation disk (9) is arranged on the outer surface of the first valve pipe (16), supporting columns (8) are arranged on two sides of the upper end of the installation disk (9), a supporting disk (5) is arranged at the upper end of each supporting column (8), and a motor (7) is arranged in the middle of the lower end of the supporting disk (5), the lower extreme of motor (7) extends there is the motor shaft and the lower extreme of motor shaft is provided with connecting rod (14), the lower extreme of connecting rod (14) is connected with rolling disc (4).

2. The multi-stage sealed self-control valve of a carbon dioxide refrigeration system according to claim 1, wherein: the two ends of the valve body (2) are provided with connecting pipes (3) in a penetrating mode, and the ports of the connecting pipes (3) are provided with connecting method discs (1).

3. The multi-stage sealed self-control valve of a carbon dioxide refrigeration system according to claim 1, wherein: the connecting plate is characterized in that a connecting plate (26) is arranged at the joint of the first valve pipe (16) and the second valve pipe (17), mounting holes (27) are formed in the two sides of the connecting plate (26) in a penetrating mode, and mounting rods (25) are arranged at the positions of the mounting holes (27).

4. The multi-stage sealed self-control valve of a carbon dioxide refrigeration system according to claim 1, wherein: the upper end of the supporting disc (5) is provided with a display screen (6).

5. The multi-stage sealed self-control valve of a carbon dioxide refrigeration system according to claim 1, wherein: the lower extreme of the first body of rod (101) is provided with threaded rod (102), the upper end of the second body of rod (104) is provided with screw hole (103), the second body of rod (104) sets up the lower extreme at the first body of rod (101), and threaded rod (102) set up the inside at screw hole (103).

6. The multi-stage sealed self-control valve of a carbon dioxide refrigeration system according to claim 1, wherein: the ball valve core (11) is arranged inside the valve body (2).

7. The multi-stage sealed self-control valve of a carbon dioxide refrigeration system according to claim 1, wherein: the first group of sealing gaskets (13) and the second group of sealing gaskets (18) are provided with three layers.

8. The multi-stage sealed self-control valve of a carbon dioxide refrigeration system according to claim 3, characterized in that: the lower end of the connecting disc (26) is rotatably connected with the upper end of the first valve pipe (16).