Temperature control stop valve

Abstract

The utility model discloses a temperature control stop valve which comprises a valve body, a circulation channel arranged in the valve body and a valve plate fixedly connected in the circulation channel, an opening and closing structure located at the top of the valve body is arranged in the valve body, and the opening and closing structure comprises a sealing plate connected in the valve body in a sliding mode. The bottom of the sealing plate can make contact with the surface of the valve plate and the surface of the valve body, pressure holes located in the two sides of the valve plate are formed in the surface of the sealing plate, and a sleeve located at the top of the sealing plate is slidably connected into the valve body. Liquid with different temperatures is in contact with the spring, so that the spring is rigidly adjusted and plastically deformed due to temperature change, the supporting force of the spring is lost or increased, and the spring with the supporting force changed according to the temperature can control the opening and closing states of the sealing plate; therefore, the effect of automatically carrying out temperature control opening and closing on the valve body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a temperature-controlled stop valve. Background Art

[0002] The temperature control stop valve is a valve that combines temperature control and stop functions. It can automatically adjust the opening and closing of the valve according to the set temperature in the pipeline system, thereby controlling the flow and temperature of the fluid. The core components of the temperature control stop valve include temperature sensors and valve actuators. The sensor senses the water temperature signal in the pipeline and transmits the signal to the valve actuator. The actuator autonomously adjusts the opening of the valve according to the signal, thereby controlling the water flow and temperature in the pipeline.

[0003] For example, the patent application number published on the China Patent Network is: 01265782.4, and the patent name is: A temperature-controlled stop valve, consisting of a valve body, a valve cover, a connecting sleeve, a valve disc, a valve stem, a spring and a pressure pin. It is characterized in that two valve discs are installed at the lower end of the valve stem to control the two drain ports on the water inlet pipe respectively, so that the liquid pressures borne by the two valve discs offset each other. The opening and closing of the temperature-controlled stop valve are determined by the control pressure of the temperature sensor, and the size of the control pressure is determined by the temperature of the controlled object, thereby ensuring that the opening and closing states of the temperature-controlled stop valve are always controlled by temperature and are basically not affected by other factors. Therefore, a temperature-controlled stop valve has the following characteristics: reliable action, stable performance, high control accuracy, no vibration, no noise, and simple structure.

[0004] However, the structure of the existing temperature-controlled stop valve is relatively simple, and the water flow temperature is mainly sensed by a temperature sensor. The accuracy of the temperature sensor will be affected by external factors such as ambient temperature, humidity, electromagnetic radiation and power supply noise. At the same time, the response speed of the temperature sensor is slow and it is impossible to quickly measure the temperature changes in the physical environment.

[0005] Therefore, it is necessary to redesign the temperature control stop valve. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a temperature-controlled stop valve, which has the advantages of improving the stability and reliability of temperature control starting and closing, and solves the problem that the structure of the existing temperature-controlled stop valve is relatively simple, and the water flow temperature is mainly sensed by a temperature sensor. The accuracy of the temperature sensor will be affected by external factors such as ambient temperature, humidity, electromagnetic radiation and power supply noise. At the same time, the response speed of the temperature sensor is slow, and the temperature changes in the physical environment cannot be quickly measured.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temperature-controlled stop valve, comprising a valve body;

[0008] A flow passage disposed inside the valve body;

[0009] A valve plate fixedly connected to the inside of the flow channel;

[0010] The valve body is provided with an opening and closing structure located at the top of the valve body;

[0011] The opening and closing structure includes a sealing plate slidably connected to the inside of the valve body, the bottom of the sealing plate can contact the surfaces of the valve plate and the valve body respectively, the surface of the sealing plate is provided with pressure holes on both sides of the valve plate, the inside of the valve body is slidably connected with a sleeve located on the top of the sealing plate, the inner surface of the sleeve is fixedly connected with a memory alloy spring, the top of the memory alloy spring is fixedly connected to the top of the inner wall of the valve body, the inside of the valve body is fixedly connected with a spring sleeved on the surface of the sleeve, and the side of the spring away from the valve body can apply elastic support to the sleeve.

[0012] As a preferred embodiment of the present invention, both sides of the inner wall of the valve body are fixedly connected with elastic rings, the elastic rings are arranged around the surface of the sealing plate, and the side of the elastic ring away from the valve body is plugged into the sealing plate.

[0013] As a preferred embodiment of the present invention, a rubber pad is fixedly connected to the bottom of the sealing plate, and the side of the rubber pad away from the sealing plate contacts the surfaces of the valve plate and the valve body respectively, and a sealing pad is fixedly connected to the bottom of the sleeve, and the bottom of the sealing pad can contact the top of the sealing plate, and the sealing pad is elastic.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model allows liquids of different temperatures to contact the spring, so that the spring adjusts its rigidity and undergoes plastic deformation due to temperature changes, and its supporting force is lost or increased. The spring that can change its supporting force according to the temperature can control the opening and closing state of the sealing plate, thereby achieving the effect of automatically controlling the opening and closing of the valve body by temperature control.

[0016] 2. The utility model can position the sealing plate by setting an elastic ring, prevent the sealing plate from tilting during movement, and improve the power transmission effect.

[0017] 3. The utility model can improve the sealing effect of the sealing plate by arranging the rubber pad, prevent the appearance of a gap between the sealing plate and the valve plate, and at the same time weaken the impact force generated when the sealing plate is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0021] In the figure: 1. valve body; 2. flow channel; 3. valve plate; 4. opening and closing structure; 5. sealing plate; 6. pressure hole; 7. sleeve; 8. memory alloy spring; 9. spring; 10. elastic ring; 11. rubber pad; 12. sealing pad. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figures 1 to 3 As shown, the utility model provides a temperature control stop valve, including a valve body 1;

[0024] A flow channel 2 is arranged inside the valve body 1;

[0025] A valve plate 3 fixedly connected to the inside of the circulation channel 2;

[0026] The valve body 1 is provided with an opening and closing structure 4 located at the top of the valve body 1;

[0027] The opening and closing structure 4 includes a sealing plate 5 slidably connected to the inside of the valve body 1, the bottom of the sealing plate 5 can contact the surfaces of the valve plate 3 and the valve body 1 respectively, the surface of the sealing plate 5 is provided with pressure holes 6 located on both sides of the valve plate 3, the inside of the valve body 1 is slidably connected with a sleeve 7 located on the top of the sealing plate 5, the inner surface of the sleeve 7 is fixedly connected with a memory alloy spring 8, the top of the memory alloy spring 8 is fixedly connected to the top of the inner wall of the valve body 1, the inside of the valve body 1 is fixedly connected with a spring 9 sleeved on the surface of the sleeve 7, the side of the spring 9 away from the valve body 1 can apply elastic support to the sleeve 7, under normal temperature, the elastic force of the memory alloy spring 8 is greater than that of the spring 9, and below the set temperature, the elastic force of the memory alloy spring 8 is less than that of the spring 9.

[0028] refer to Figure 3 Elastic rings 10 are fixedly connected to both sides of the inner wall of the valve body 1. The elastic rings 10 are arranged around the surface of the sealing plate 5. The side of the elastic ring 10 away from the valve body 1 is plugged into the sealing plate 5.

[0029] As a technical optimization solution of the present invention, by providing an elastic ring 16, the sealing plate 5 can be positioned to prevent the sealing plate 5 from tilting during movement, thereby improving the power transmission effect.

[0030] refer to Figure 3 A rubber pad 11 is fixedly connected to the bottom of the sealing plate 5, and the side of the rubber pad 11 away from the sealing plate 5 is in contact with the surface of the valve plate 3 and the valve body 1 respectively. A sealing pad 12 is fixedly connected to the bottom of the sleeve 7, and the bottom of the sealing pad 12 can contact the top of the sealing plate 5, and the sealing pad 12 is elastic.

[0031] As a technical optimization solution of the utility model, by providing the rubber pad 17, the sealing effect of the sealing plate 5 can be improved, and a gap between the sealing plate 5 and the valve plate 3 can be prevented, while the impact force generated when the sealing plate 5 is closed can be weakened.

[0032] The working principle and use process of the utility model are as follows: when in use, the valve body 1 is connected to the water pipe so that the liquid inside the water pipe can flow from right to left inside the circulation channel 2. When the liquid is injected into the valve body 1, it first enters the top of the sealing plate 5 through the pressure hole 6 on the right side of the bottom of the sealing plate 5. When the high-temperature liquid contacts the spring 9, the spring 9 reduces its own rigidity and undergoes plastic deformation due to the high temperature, and its supporting force is lost. When the elastic force of the memory alloy spring 8 is greater than the supporting force of the spring 9, the memory alloy spring 8 can push the sleeve 7 to rise, so that the sleeve 7 is out of contact with the sealing plate 5. The pressure hole 6 at the axis of the top of the sealing plate 5 and the pressure hole 6 on the right side circulate with each other and generate a pressure difference so that the entire sealing plate 5 is lifted upward when impacted by the water flow pressure. When the bottom of the sealing plate 5 is out of contact with the valve plate 3, the circulation channels 2 on both sides of the valve plate 3 are connected through the gap between the valve plate 3 and the sealing plate 5.

[0033] To sum up: the temperature-controlled stop valve, through the contact of liquids of different temperatures with the spring 9, causes the spring 9 to adjust its rigidity and undergo plastic deformation due to temperature changes, and causes its supporting force to be lost or increased. The spring 9 that can change its supporting force according to the temperature can control the opening and closing state of the sealing plate 5, thereby achieving the effect of automatically controlling the opening and closing of the valve body 1 by temperature control.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature-controlled stop valve, comprising a valve body (1); a flow channel (2) arranged inside the valve body (1); and a valve plate (3) fixedly connected to the flow channel (2); characterized in that: The valve body (1) is provided with an opening and closing structure (4) located at the top of the valve body (1); the opening and closing structure (4) includes a sealing plate (5) slidably connected to the inside of the valve body (1); the bottom of the sealing plate (5) can contact the surface of the valve plate (3) and the valve body (1) respectively; the surface of the sealing plate (5) is provided with pressure holes (6) located on both sides of the valve plate (3); the inside of the valve body (1) is slidably connected to a sleeve (7) located at the top of the sealing plate (5); the inner surface of the sleeve (7) is fixedly connected to a memory alloy spring (8); the top of the memory alloy spring (8) is fixedly connected to the top of the inner wall of the valve body (1); the inside of the valve body (1) is fixedly connected to a spring (9) sleeved on the surface of the sleeve (7); the side of the spring (9) away from the valve body (1) can apply elastic support to the sleeve (7).

2. A temperature-controlled stop valve according to claim 1, characterized in that: Elastic rings (10) are fixedly connected to both sides of the inner wall of the valve body (1), and the elastic ring (10) is arranged around the surface of the sealing plate (5). The side of the elastic ring (10) away from the valve body (1) is plugged into the sealing plate (5).

3. A temperature-controlled stop valve according to claim 1, characterized in that: The bottom of the sealing plate (5) is fixedly connected to a rubber pad (11), and a side of the rubber pad (11) away from the sealing plate (5) contacts the surfaces of the valve plate (3) and the valve body (1) respectively. The bottom of the sleeve (7) is fixedly connected to a sealing pad (12), and the bottom of the sealing pad (12) can contact the top of the sealing plate (5), and the sealing pad (12) is elastic.

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