Aluminum angle valve suitable for low-temperature environment

Abstract

The utility model discloses an aluminum angle valve suitable for a low-temperature environment, which relates to the technical field of aluminum angle valves and comprises a valve body, the top of the valve body is communicated with a valve cylinder, a valve seat is fixedly mounted in the valve body, a conical opening and closing hole is formed in the valve seat, a valve rod is in threaded connection with the interior of the valve cylinder, and the valve rod is in threaded connection with the valve cylinder. The lower end of the valve rod is fixedly connected with a conical valve element matched with the opening and closing hole, a flow guide channel is formed in the valve rod, a heating cavity communicated with the flow guide channel is formed in the valve element, a handle is fixedly installed at the upper end of the valve rod through a bolt, and a heating rod is fixedly installed in the middle of the bottom of the handle. The heating rod and the thermal compensation medium are arranged in the valve element, so that automatic constant-temperature control of the valve element can be achieved, the problem of sealing failure caused by low-temperature shrinkage is effectively solved, it is guaranteed that the valve element and the valve seat keep the best fit clearance all the time, and the sealing performance of equipment in the low-temperature environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum angle valve technology, and in particular to an aluminum angle valve suitable for low-temperature environments. Background Technology

[0002] Aluminum angle valves are common pipeline connection components, mainly used to control the flow of media in pipelines. They are characterized by simple structure and convenient installation, and are widely used in construction, water supply, and industrial equipment. However, when existing aluminum angle valves are used in low-temperature environments, due to the thermal expansion and contraction characteristics of metal materials, the valve core will shrink under low-temperature conditions. This leads to an increase in the sealing gap between the valve core and the valve seat, thereby reducing the valve's sealing performance and causing water leakage. This problem is particularly prominent in cold regions, not only affecting normal water use for residents but also potentially posing safety hazards to industrial production. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an aluminum angle valve suitable for low-temperature environments, which solves the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a low-temperature environment suitable aluminum angle valve, including a valve body, a valve cylinder connected to the top of the valve body, and a valve seat fixedly installed inside the valve body. The valve seat has a conical opening and closing hole. A valve stem is threadedly connected inside the valve cylinder. A conical valve core adapted to the opening and closing hole is fixedly connected to the lower end of the valve stem. A flow guiding channel is opened inside the valve stem. A heating chamber communicating with the flow guiding channel is opened inside the valve core. A handle is fixedly installed on the upper end of the valve stem by bolts. A heating rod is fixedly installed at the center of the bottom of the handle. The lower end of the heating rod extends into the flow guiding channel. The flow guiding channel is filled with a heat compensation medium.

[0005] Furthermore, a temperature sensor and a processor are installed on the outer wall of the valve cylinder. The temperature sensor and the heating rod are both electrically connected to the processor. A storage battery is installed inside the handle. The heating rod and the processor are both electrically connected to the storage battery.

[0006] Furthermore, the heat compensation medium is antifreeze or heat transfer oil.

[0007] Furthermore, the diameter of the opening and closing hole gradually increases from bottom to top.

[0008] Furthermore, an irregularly shaped upper sealing ring is fixedly fitted on the top of the valve core, and an L-shaped lower sealing ring is fixedly fitted on the bottom of the valve core. A sealing groove is provided on the inner wall of the opening and closing hole for the installation of the upper and lower sealing rings.

[0009] Furthermore, the bottom side of the upper sealing ring is provided with an upper oblique cut surface, which forms an angle of 30°-45° with the horizontal plane.

[0010] By employing the above technical solution, this utility model provides an aluminum angle valve suitable for low-temperature environments, which has at least the following beneficial effects:

[0011] 1. This utility model can achieve automatic constant temperature control of the valve core by setting a heating rod and heat compensation medium inside the valve core, effectively solving the problem of sealing failure caused by low temperature shrinkage, ensuring that the valve core and valve seat always maintain the best fit clearance, and improving the sealing performance of the equipment in low temperature environment.

[0012] 2. By integrating the heating rod into the detachable handle, this utility model allows for quick inspection and maintenance of the heating rod, and also facilitates the replacement or replenishment of the heat compensation medium, greatly extending the service life of the valve and reducing maintenance costs.

[0013] 3. By setting an irregularly shaped upper sealing ring and an L-shaped lower sealing ring, and in conjunction with a conical opening and closing hole, this utility model can form a double seal, further enhancing the sealing performance of the valve core. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

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

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 for Figure 2 The enlarged view of point A shown;

[0018] Figure 4 This is a schematic diagram of the opening and closing hole structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the valve stem structure of this utility model.

[0020] In the diagram: 1. Valve body; 2. Valve cylinder; 3. Valve seat; 301. Opening / closing hole; 302. Sealing groove; 4. Valve stem; 401. Flow guide channel; 5. Valve core; 501. Heating chamber; 6. Handle; 7. Heating rod; 8. Upper sealing ring; 801. Upper beveled surface; 9. Lower sealing ring; 10. Temperature sensor; 11. Processor; 12. Battery. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] When existing aluminum angle valves are used in low-temperature environments, the valve core will shrink due to the thermal expansion and contraction characteristics of metal materials. This will increase the sealing gap between the valve core and the valve seat, thereby reducing the valve's sealing performance and causing water leakage. This problem is particularly prominent in cold regions, which not only affects the normal water use of residents, but may also pose a safety hazard to industrial production.

[0023] Example 1

[0024] To address the aforementioned shortcomings of aluminum angle valves when used in low-temperature environments, please refer to [link / reference needed]. Figures 1-5 This utility model provides an aluminum angle valve suitable for low-temperature environments, which can solve the sealing failure problem caused by the shrinkage of the valve core 5 due to low temperature. The aluminum angle valve uses a valve body 1 as a base. A valve cylinder 2 is connected to the top of the valve body 1, and a valve seat 3 is fixedly installed inside the valve body 1. The valve seat 3 has a conical opening / closing hole 301. A valve stem 4 is threadedly connected inside the valve cylinder 2. A conical valve core 5, which matches the opening / closing hole 301, is fixedly connected to the lower end of the valve stem 4. A flow guide channel 401 is opened inside the valve stem 4, and a heating chamber 501 communicating with the flow guide channel 401 is opened inside the valve core 5. A handle 6 is fixedly installed on the upper end of the valve stem 4 by bolts. A heating rod 7 is fixedly installed at the center of the bottom of the handle 6. The lower end of the heating rod 7 extends into the flow guide channel 401. The flow guide channel 401 is filled with a heat compensation medium. When used in a low-temperature environment, the heat compensation medium inside the flow guide channel 401 can be heated by the heating rod 7. The heat compensation medium uses antifreeze or heat transfer oil. Antifreeze can prevent the heat compensation medium from freezing, while heat transfer oil helps improve the heat transfer efficiency of the heat compensation medium. The heat compensation medium flows along the guide channel 401 to the heating chamber 501, which can evenly transfer heat to the entire valve core 5 and valve stem 4, preventing the gap between the valve core 5 and the opening / closing hole 301 from increasing due to cold contraction, thus ensuring the sealing effect of the valve core 5. After the equipment has been used for a certain period of time, the handle 6 can be disassembled, and the heating rod 7 can be removed for maintenance or replacement. The heat compensation medium in the guide channel 401 can also be replaced periodically to ensure the heating effect of the equipment. This effectively solves the sealing failure problem caused by low-temperature shrinkage of traditional aluminum angle valves, ensuring that the valve core 5 and valve seat 3 always maintain the best fit clearance, and improving the sealing performance of the equipment in low-temperature environments.

[0025] Since valve body 1 is usually not manually monitored in real time after installation, a temperature sensor 10 and a processor 11 are installed on the outer wall of valve cylinder 2 to automatically control the heating rod 7 when the temperature of valve body 1 is too low. The temperature sensor 10 and the heating rod 7 are both electrically connected to the processor 11. A battery 12 is installed inside handle 6, and the heating rod 7 and the processor 11 are both electrically connected to the battery 12. The temperature sensor 10 is used to detect the temperature of valve body 1, and the processor 11 is used to control the working state of heating rod 7 according to the detection signal of temperature sensor 10. When temperature sensor 10 detects that valve body 1 has reached a preset low temperature threshold, the processor 11 can control heating rod 7 to heat it. Thus, heating rod 7 can heat valve stem 4 and valve core 5 in a timely manner through heat compensation medium, without the need for manual monitoring, which is convenient to use.

[0026] Reference Figure 2 As shown and Figure 4 As shown, the diameter of the opening and closing hole 301 gradually increases from bottom to top. This ensures that even if the valve core 5 shrinks in a low-temperature environment, it can still maintain a tight fit with the inner wall of the opening and closing hole 301 as the valve core 5 is inserted, further reducing the risk of leakage.

[0027] Example 2

[0028] To further optimize the sealing effect of valve core 5, an irregularly shaped upper sealing ring 8 is fixedly sleeved on the top of valve core 5, and an L-shaped lower sealing ring 9 is fixedly sleeved on the bottom of valve core 5. A sealing groove 302 is opened on the inner wall of the opening and closing hole 301 for the installation of the upper sealing ring 8 and the lower sealing ring 9. Both the upper sealing ring 8 and the lower sealing ring 9 are made of low-temperature resistant rubber material. The upper sealing ring 8 and the lower sealing ring 9 form a double sealing structure to prevent media leakage.

[0029] The upper sealing ring 8 has an upper oblique surface 801 on one side of its bottom. The upper oblique surface 801 forms an angle of 30°-45° with the horizontal plane. The upper oblique surface 801 can provide an obstruction for the flow of the medium and enhance the elastic compensation capability of the upper sealing ring 8 at low temperatures.

[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-temperature environment suitable aluminum angle valve, comprising a valve body (1), characterized in that: The valve body (1) is connected to the top of the valve cylinder (2), and the valve seat (3) is fixedly installed inside the valve body (1). The valve seat (3) is provided with a conical opening and closing hole (301). The valve cylinder (2) is threadedly connected to the valve stem (4). The lower end of the valve stem (4) is fixedly connected to a conical valve core (5) that is compatible with the opening and closing hole (301). The valve stem (4) is provided with a flow guide channel (401). The valve core (5) is provided with a heating chamber (501) that communicates with the flow guide channel (401). The upper end of the valve stem (4) is fixedly installed with a handle (6) by bolts. A heating rod (7) is fixedly installed at the center of the bottom of the handle (6). The lower end of the heating rod (7) extends into the flow guide channel (401). The flow guide channel (401) is filled with liquid heat compensation medium.

2. The aluminum angle valve suitable for low-temperature environments according to claim 1, characterized in that: A temperature sensor (10) and a processor (11) are installed on the outer wall of the valve cylinder (2). The temperature sensor (10) and the heating rod (7) are electrically connected to the processor (11). A storage battery (12) is installed inside the handle (6). The heating rod (7) and the processor (11) are electrically connected to the storage battery (12).

3. The aluminum angle valve suitable for low-temperature environments according to claim 1, characterized in that: The heat compensation medium is either antifreeze or heat transfer oil.

4. The aluminum angle valve suitable for low-temperature environments according to claim 1, characterized in that: The diameter of the opening and closing hole (301) gradually increases from bottom to top.

5. The aluminum angle valve suitable for low-temperature environments according to claim 1, characterized in that: The valve core (5) is fixedly fitted with an irregular upper sealing ring (8) at the top and an L-shaped lower sealing ring (9) is fixedly fitted at the bottom. The inner wall of the opening and closing hole (301) is provided with a sealing groove (302) for the installation of the upper sealing ring (8) and the lower sealing ring (9).

6. The aluminum angle valve suitable for low-temperature environments according to claim 5, characterized in that: The upper sealing ring (8) has an upper oblique cut surface (801) on one side of its bottom, and the upper oblique cut surface (801) forms an angle of 30°-45° with the horizontal plane.

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