Cooling capacity changing structure of industrial cooling-water machine

Abstract

The utility model discloses a variable cooling capacity structure of an industrial cooling-water machine, which relates to the technical field of industrial cooling-water machines and comprises a valve main body, a ball valve is movably connected in the valve main body, a valve rod rotatably connected with the valve main body is fixed at the top of the ball valve, and a positioning ring positioned at the top of the valve main body is fixed at the bottom of the outer side of the valve rod. A locking cylinder located above the valve body is arranged on the outer side of the valve rod. A stable protection system is formed through the locking cylinder, the positioning ring, the fastening ring and the threaded ring, the locking cylinder and the valve body are in accurate threaded connection through the outer threaded ring and the inner threaded ring, lifting of the locking cylinder can be accurately controlled through rotation of the locking cylinder, the positioning ring and the valve rod are integrally formed, stable connection is ensured, and the rubber positioning protrusion at the bottom of the fastening ring is not prone to falling. When the locking cylinder descends, the locking cylinder is tightly pressed on the positioning ring, the friction force between the locking cylinder and the positioning ring is greatly increased by means of the high friction characteristic of rubber, strong resistance is formed, and the influence of external accidental impact force on the valve rod is effectively resisted.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial chillers, in particular to a variable cooling capacity structure of an industrial chiller. Background Art

[0002] Industrial chillers are refrigeration equipment that provide circulating cooling water for industrial production. Their working principles are divided into two categories: compression type and absorption type. The compression type consists of a compressor, a condenser, a throttling device, and an evaporator. The compressor increases the pressure and temperature of the refrigerant gas, and the condenser uses air cooling or water cooling to liquefy it. After throttling, reducing the pressure and cooling, the evaporator absorbs the heat of the circulating water to vaporize and refrigerate, and the refrigerant returns to the compressor for circulation. The absorption type uses a binary solution to heat the concentrated solution in the generator with an external heat source to vaporize the refrigerant. The refrigeration process is then completed through the condenser, throttling device, and evaporator. The refrigerant vapor vaporized in the evaporator is eventually absorbed and reused by the dilute solution in the absorber. It has precise temperature control and is suitable for a variety of industrial scenarios, helping equipment to operate stably and improve production efficiency.

[0003] The cooling capacity regulating valve is mainly used to accurately control the cooling capacity of the industrial chiller. It is like a flow controller that adjusts the cooling capacity by adjusting the flow of refrigerant. In the industrial production process, different equipment or processes have different requirements for cooling water temperature and the required cooling capacity.

[0004] As the industrial production environment becomes increasingly complex and changeable, due to the compact equipment layout and frequent material transportation in industrial workshops, cooling control valves are often installed around equipment or along pipelines, making them extremely vulnerable to external collisions. Since they only rely on simple valve stem rotation to achieve the adjustment function, once an unexpected collision occurs, the valve stem is displaced by force, and the valve opening is passively changed. Passive adjustment will cause problems such as overall cooling imbalance. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an industrial chiller variable cooling capacity structure to solve the technical problem that the cooling capacity regulating valve in the existing technology is often installed around the equipment or along the pipeline, and is extremely susceptible to external collisions. Since it only relies on simple valve stem rotation to achieve the adjustment function, once it encounters an unexpected collision, the valve stem is displaced by force, and the valve then passively changes its opening. Passive adjustment will cause technical problems such as overall cooling capacity imbalance.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an industrial chiller variable cooling capacity structure, comprising a valve body, a ball valve movably connected to the interior of the valve body, and a valve stem rotatably connected to the valve body fixed to the top of the ball valve;

[0007] The valve stem outside bottom is fixed with a positioning ring located at the top of the valve body, the valve stem outside is provided with a locking cylinder located above the valve body, the locking cylinder inside bottom is fixed with a fastening ring located above the positioning ring, the fastening ring bottom is uniformly fixed with multiple groups of positioning protrusions made of rubber material, and the locking cylinder outside is uniformly fixed with multiple groups of protrusions.

[0008] The valve body top is fixed with an external thread ring extending into the locking cylinder, and the locking cylinder outside bottom is fixed with an internal thread ring matched with the external thread ring, the external thread ring outside is provided with external threads, and the internal thread ring inside is provided with internal threads matched with the external threads.

[0009] The valve stem top is fixed with an adjusting hand wheel, and the adjusting hand wheel and the valve stem are fixedly connected through multiple groups of connecting rods.

[0010] The valve body inside is provided with a liquid passage, and the valve body two sides are fixed with connecting flanges.

[0011] By adopting the above technical scheme, a stable protection system is constructed by the locking cylinder, the positioning ring, the fastening ring and the thread ring, the locking cylinder and the valve body are precisely threadedly connected through the external thread ring and the internal thread ring, the rotation can precisely control the lifting of the locking cylinder, the positioning ring is integrally formed with the valve stem, ensuring stable connection, the rubber positioning protrusions at the bottom of the fastening ring are tightly pressed on the positioning ring when the locking cylinder is lowered, relying on the high friction characteristics of rubber, the friction between the two is greatly increased, forming strong resistance, effectively resisting the influence of external accidental impact force on the valve stem, even in the complex environment of industrial workshops, such as frequent equipment vibration and material collision, the design can ensure that the valve stem remains stationary, thereby preventing the ball valve opening from being accidentally changed, in this way, the flow of cold liquid is stabilized, ensuring the accurate output of cold energy, completely solving the problem of frequent imbalance of traditional regulating valves due to external interference, providing a solid guarantee for the stable operation of industrial water chiller.

[0012] Further, the valve stem outside is fixed with a guide cylinder extending into the locking cylinder, and the locking cylinder inside is provided with a guide groove matched with the guide cylinder.

[0013] By adopting the above technical scheme, the guide cylinder slides along the guide groove during the rotation of the valve stem and the movement of the locking cylinder, providing stable guidance for the valve stem and the locking cylinder.

[0014] Further, the valve stem outside is fixed with a limit movable ring extending into the valve body inside, and the valve body inside is provided with a movable hole matched with the limit movable ring.

[0015] By adopting the above technical solution, the limit movable ring plays the role of upper and lower limits during the movement of the valve stem, preventing the valve stem from moving excessively upward or downward, and avoiding damage to the ball valve or loss of adjustment function due to excessive displacement of the valve stem.

[0016] To sum up, the utility model mainly has the following beneficial effects: the utility model constructs a stable protection system through the locking cylinder, positioning ring, fastening ring and threaded ring. The locking cylinder and the valve body are precisely threadedly connected through the external threaded ring and the internal threaded ring. Its rotation can accurately control the lifting and lowering of the locking cylinder. The positioning ring and the valve stem are integrally formed to ensure a stable connection. The rubber positioning protrusion at the bottom of the fastening ring is tightly pressed on the positioning ring when the locking cylinder descends. Relying on the high friction characteristics of rubber, the friction between the two is greatly increased, forming a strong resistance, which effectively resists the influence of external accidental impact force on the valve stem. Even in the complex environment of the industrial workshop, such as frequent equipment vibration, material collision, etc., this design can ensure that the valve stem remains stationary, thereby preventing the ball valve opening from changing accidentally. In this way, the flow of cold liquid is stabilized, and the accurate output of cold capacity is ensured. The problem of frequent imbalance of traditional regulating valves due to susceptibility to external interference is completely solved, providing a solid guarantee for the stable operation of industrial chillers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 For this utility model Figure 2 A magnified view of point A;

[0020] Figure 4 It is a partial structural cutaway diagram of the utility model;

[0021] Figure 5 This is a schematic structural diagram of the locking cylinder of the utility model.

[0022] In the figure: 1. Valve body; 2. Liquid channel; 3. Ball valve; 4. Valve stem; 5. Locking cylinder; 6. Positioning ring; 7. Fastening ring; 8. Positioning protrusion; 9. External thread ring; 10. Internal thread ring; 11. Guide cylinder; 12. Guide groove; 13. Limit movable ring; 14. Connecting rod; 15. Adjusting handwheel; 16. Raised strip; 17. Connecting flange. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] The following describes an embodiment of the present invention based on its overall structure.

[0025] Example 1

[0026] An industrial chiller variable cooling capacity structure, such as Figure 1-5 As shown, it includes a valve body 1;

[0027] The valve body 1 is the core shell of the entire variable cooling structure. It has a liquid channel 2 inside for the circulation of cooling liquid. Connecting flanges 17 are fixed on both sides of the valve body. The connecting flanges 17 can be easily connected to external pipes to ensure that the cooling liquid can smoothly enter and exit the valve body 1. The valve body 1 is made of high-strength, corrosion-resistant metal materials such as stainless steel to ensure long-term stable operation in industrial environments and withstand the pressure of the cooling liquid and possible external impacts.

[0028] The ball valve 3 is movably connected to the interior of the valve body 1, and a valve stem 4 is fixed on its top, which is rotatably connected to the valve body 1. The rotation of the valve stem 4 can accurately drive the angle of the ball valve 3 to adjust, thereby changing the flow cross-sectional area of ​​the cooling liquid in the liquid channel 2, and realizing precise control of the cooling capacity. The valve stem 4 is manufactured using high-precision processing technology to ensure that it is tightly connected to the ball valve 3 and the valve body 1 and rotates smoothly, reducing energy loss and leakage risks. The ball valve 3 is made of high-quality sealing materials, such as polytetrafluoroethylene, to ensure effective sealing at different openings to prevent cooling liquid leakage.

[0029] A positioning ring 6 located at the top of the valve body 1 is fixed to the bottom of the outer side of the valve stem 4. The positioning ring 6 and the valve stem 4 are integrally formed to ensure their connection strength. A locking cylinder 5 located above the valve body 1 is provided on the outer side of the valve stem 4. A fastening ring 7 located above the positioning ring 6 is fixed to the bottom end of the locking cylinder 5. Multiple groups of positioning protrusions 8 are evenly fixed to the bottom of the fastening ring 7. The positioning protrusions 8 are made of rubber material.

[0030] When the locking cylinder 5 moves downward, the fastening ring 7 and its positioning protrusion 8 can be tightly pressed on the positioning ring 6. Due to the friction characteristics of rubber, the friction between the positioning ring 6 and the fastening ring 7 is increased, thereby effectively preventing the valve stem 4 from rotating accidentally. Multiple groups of protrusion strips 16 are evenly fixed on the outside of the locking cylinder 5 to facilitate the operator to manually rotate the locking cylinder 5;

[0031] An external threaded ring 9 extending into the interior of the locking cylinder 5 is fixed to the top of the valve body 1, and an external thread is provided on the outside of the external threaded ring 9. An internal threaded ring 10 is fixed to the bottom of the outer side of the locking cylinder 5, which cooperates with the external threaded ring 9. An internal thread is provided inside the internal threaded ring 10 to cooperate with the external thread. By rotating the locking cylinder 5, the threads between the internal threaded ring 10 and the external threaded ring 9 are matched to realize the up and down movement of the locking cylinder 5. This threaded connection method has a self-locking characteristic. Once adjusted to the appropriate position, it can maintain the locked state without external force, ensuring stable locking of the valve stem 4.

[0032] A guide cylinder 11 extending into the interior of the locking cylinder 5 is fixed to the outside of the valve stem 4. A guide groove 12 that cooperates with the guide cylinder 11 is provided inside the locking cylinder 5. During the rotation of the valve stem 4 and the movement of the locking cylinder 5, the guide cylinder 11 slides along the guide groove 12, providing a stable guide for the valve stem 4, ensuring the accurate movement trajectory of the valve stem 4 and preventing it from deflecting or shaking. The matching accuracy of the guide cylinder 11 and the guide groove 12 has been carefully designed to ensure that the gap between the two is moderate, which can not only ensure smooth relative movement, but also effectively limit the other degrees of freedom of the valve stem 4, thereby improving the stability of the entire structure;

[0033] A limit movable ring 13 extending into the interior of the valve body 1 is fixed to the outside of the valve stem 4. A movable hole cooperating with the limit movable ring 13 is opened inside the valve body 1. The limit movable ring 13 plays an upper and lower limit role during the movement of the valve stem 4, preventing the valve stem 4 from excessively moving upward or downward, and avoiding damage to the ball valve 3 or loss of adjustment function due to excessive displacement of the valve stem 4. The size of the movable hole is adapted to the limit movable ring 13, ensuring that the limit movable ring 13 can move freely in the movable hole without being separated from the movable hole, further improving the safety and reliability of the movement of the valve stem 4;

[0034] An adjusting hand wheel 15 is fixed to the top of the valve stem 4. The adjusting hand wheel 15 and the valve stem 4 are fixedly connected by multiple sets of connecting rods 14. The shape and size of the adjusting hand wheel 15 are designed in accordance with ergonomic principles, making it convenient for the operator to hold and apply force. Its surface is usually treated with anti-slip treatment, such as adding texture or rubber coating, to prevent hand slip during operation, ensure that the valve stem 4 can be accurately rotated, and achieve fine adjustment of the opening of the ball valve 3;

[0035] The connecting rod 14 is made of high-strength metal material, such as carbon steel or alloy steel, and its two ends are firmly welded to the valve stem 4 and the adjusting handwheel 15 or adopt other reliable connection methods, such as bolt connection. The number and distribution of the connecting rods 14 are reasonably designed to evenly transmit torque, ensuring that the rotation of the adjusting handwheel 15 can be accurately converted into the rotational motion of the valve stem 4, thereby achieving precise control of the ball valve 3.

[0036] The working principle of the utility model is as follows: when in use, the two sets of connecting flanges 17 are connected to the external pipes, and the external cold liquid can flow through the liquid channel 2, wherein the rotation of the valve stem 4 can drive the ball valve 3 to adjust the angle, and then the flow rate of the cold liquid can be adjusted, thereby changing the overall cooling capacity;

[0037] When the angle of the ball valve 3 needs to be adjusted by adjusting the hand wheel 15, the staff first manually rotates the locking cylinder 5, and the internal threaded ring 10 of the locking cylinder 5 rotates relative to the external threaded ring 9, thereby passively raising the locking cylinder 5. At this time, the passive raising of the locking cylinder 5 drives the fastening ring 7 to break away from the squeezing of the positioning ring 6. That is to say, the fastening ring 7 no longer applies the tightening pressure to the positioning ring 6. At this time, the staff can adjust the angle of the valve stem 4 and the ball valve 3 by rotating the adjusting hand wheel 15;

[0038] When the adjustment is completed, the staff manually rotates the locking cylinder 5 in the opposite direction. At this time, the locking cylinder 5 drives the fastening ring 7 to descend, so that the multiple groups of positioning protrusions 8 on the surface of the fastening ring 7 are pressed down to the surface of the positioning ring 6. As the threads of the internal thread ring 10 and the external thread ring 9 gradually engage, the fastening ring 7 and the multiple groups of positioning protrusions 8 press down the positioning ring 6 to lock it.

[0039] From the above, it can be seen that since the positioning ring 6 and the valve stem 4 are fixedly connected as a whole, after the positioning ring 6 is locked by the fastening ring 7, the valve stem 4 cannot rotate at this time, and the valve stem 4, the adjusting hand wheel 15 and the ball valve 3 are locked and fixed, which effectively avoids the problem of passive rotation of the adjusting hand wheel 15 caused by accidental external impact, thereby avoiding the problem of accidental adjustment of the angle of the ball valve 3 affecting the flow rate of the cooling capacity.

[0040] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An industrial chiller variable cooling capacity structure, comprising a valve body (1), characterized in that: The valve body (1) is movably connected to a ball valve (3) inside, and a valve stem (4) rotatably connected to the valve body (1) is fixed on the top of the ball valve (3); A positioning ring (6) located at the top of the valve body (1) is fixed to the bottom of the outer side of the valve stem (4), a locking cylinder (5) located above the valve body (1) is provided on the outer side of the valve stem (4), a fastening ring (7) located above the positioning ring (6) is fixed to the bottom end of the inner side of the locking cylinder (5), an external threaded ring (9) extending into the interior of the locking cylinder (5) is fixed to the top of the valve body (1), and an internal threaded ring (10) matching the external threaded ring (9) is fixed to the bottom of the outer side of the locking cylinder (5).

2. The variable cooling capacity structure of the industrial chiller according to claim 1, characterized in that: The bottom of the fastening ring (7) is evenly fixed with multiple groups of positioning protrusions (8), and the positioning protrusions (8) are made of rubber material. The outer side of the locking cylinder (5) is evenly fixed with multiple groups of protrusion strips (16).

3. The variable cooling capacity structure of the industrial chiller according to claim 1, characterized in that: The outer side of the external thread ring (9) is provided with an external thread, and the inner side of the internal thread ring (10) is provided with an internal thread matching the external thread.

4. The variable cooling capacity structure of the industrial chiller according to claim 1, characterized in that: A guide cylinder (11) extending into the interior of the locking cylinder (5) is fixed on the outside of the valve stem (4), and a guide groove (12) matching with the guide cylinder (11) is provided inside the locking cylinder (5).

5. The variable cooling capacity structure of the industrial chiller according to claim 1, characterized in that: A position limiting movable ring (13) extending into the interior of the valve body (1) is fixed on the outside of the valve stem (4), and a movable hole cooperating with the position limiting movable ring (13) is provided inside the valve body (1).

6. The variable cooling capacity structure of the industrial chiller according to claim 1, characterized in that: An adjusting hand wheel (15) is fixed on the top of the valve stem (4), and the adjusting hand wheel (15) and the valve stem (4) are fixedly connected via multiple groups of connecting rods (14).

7. The variable cooling capacity structure of an industrial chiller according to claim 1, characterized in that: A liquid channel (2) is provided inside the valve body (1), and connecting flanges (17) are fixed on both sides of the valve body (1).

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