Vulcanizing tank with uniform temperature rise

Abstract

The utility model discloses a vulcanizing tank with uniform temperature rise, which comprises a tank body and a heat supply system, at least four steam diffusion pipes are distributed in the tank body, the steam diffusion pipes are uniformly distributed on the inner wall of the tank body, a plurality of steam outlet holes are distributed on the steam diffusion pipes, and the steam outlet holes are arranged on the same cross section. Steam of each steam outlet hole is jetted into the tank body to form a steam rotating ring; and the heat supply system is connected with the steam diffusion pipe. According to the vulcanizing tank, through cooperation of the tank body and the heat supply system and the action of the steam diffusion pipe of the tank body, steam forms a steam rotating ring in the tank body, all parts of the tank body can be evenly heated, it is guaranteed that the surface temperature of a rubber product can be evenly increased, the temperature difference fluctuation of all the parts is small, and stability is high; therefore, the qualified rate of products can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vulcanizing tanks, in particular to a vulcanizing tank with uniformly increased temperature. Background Art

[0002] Vulcanization tank refers to the equipment that uses steam to vulcanize rubber products. Its purpose is to make the rubber vulcanizer react under high temperature and high pressure conditions to improve the strength, wear resistance and aging resistance of rubber. At present, the application range of vulcanization tank is very wide, covering almost all rubber products. It is also an indispensable equipment in the rubber vulcanization industry. For example, rubber tubes, rubber shoes, rubber seals, rubber rollers, tires, etc. all need to be treated by vulcanization tanks. In addition to rubber products, vulcanization tanks are also widely used in other fields, such as the cable industry, for cable insulation treatment, etc.

[0003] The structure of the vulcanization tank is a cylindrical container with a convex head. It can be divided into vertical and horizontal types. The head at one end is a quick-opening structure. The vulcanization process of the steam vulcanization tank includes the following steps: rubber pretreatment, rubber feeding into the tank, steam passing, temperature increase and pressure replenishment, vulcanization and curing, pressure relief, drainage, and product removal. It vulcanizes the rubber products in the tank by directly passing steam into the tank body to increase the temperature and pressure in the tank through steam.

[0004] In the prior art, a steam diffusion pipe is arranged at the bottom of the tank, and the steam diffusion holes in the diffusion pipe are densely arranged according to a certain pattern and inclination angle to make the steam diffuse evenly, thereby ensuring that the product can be heated evenly. However, with the above structure, since the steam diffuses evenly to the surroundings after entering the tank, and then diffuses from bottom to top, the temperature of the steam in the upper part will be lower than that of the steam in the lower part, so that the product cannot be heated evenly. The temperature of the upper and lower parts of the product can only be accurate to ±5°C, and the temperature difference fluctuates greatly, thereby affecting the vulcanization effect of the product, resulting in a relatively low qualified rate of the product, low stability, and failure to successfully vulcanize at one time, which can easily lead to product scrapping and affect production efficiency. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a vulcanizing tank with uniform temperature increase to solve the above-mentioned traditional problems.

[0006] The utility model is implemented by the following technical solutions:

[0007] A vulcanization tank with uniform temperature rise comprises a tank body and a heating system, wherein at least four steam diffusion pipes are arranged in the tank body, each of the steam diffusion pipes is evenly distributed on the inner wall of the tank body, and a plurality of steam outlet holes are arranged on the steam diffusion pipes. On the same cross section, steam from each of the steam outlet holes is sprayed into the tank body to form a steam rotation circle; the heating system is connected to the steam diffusion pipes.

[0008] Preferably, the steam jetting direction of the steam outlet hole keeps in contact with the inner edge of the tank body and moves along the same tangent direction.

[0009] Preferably, a first temperature sensor is provided between adjacent steam diffusion tubes.

[0010] Preferably, the heating system comprises a main steam supply pipeline and a steam distribution pipeline connected to the main steam supply pipeline, the steam distribution pipeline is connected to the steam diffusion pipe, and a first control valve is provided between the steam distribution pipeline and the steam diffusion pipe.

[0011] Preferably, one end of the main steam supply pipeline is connected to a compressed gas pipe and a high-temperature steam pipe, the compressed gas pipe is provided with a second control valve, and the high-temperature steam pipe is provided with a third control valve.

[0012] Preferably, the compressed gas pipe is a compressed air pipe or a compressed inert gas pipe.

[0013] Preferably, the steam distribution pipe is circular in shape.

[0014] Preferably, a second temperature sensor and a first pressure sensor are installed on the main steam supply pipeline.

[0015] Preferably, a condensate collecting tank is provided at the bottom of the tank body, the condensate collecting tank is connected to a drain pipe, and a fourth control valve is provided on the drain pipe.

[0016] Preferably, an exhaust pipe is provided on the top of the tank body, and a safety valve is provided on the exhaust pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The temperature-uniformly heated vulcanizing tank of the utility model cooperates with the tank body and the heating system and utilizes the effect of the steam diffusion pipe of the tank body to form a steam rotating circle in the tank body, so that various parts of the tank body can be heated uniformly, thereby ensuring that the surface temperature of the rubber product can be uniformly increased, the temperature difference fluctuation of various parts is small, the stability is high, and the qualified rate of the product can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the vulcanizing tank of the utility model.

[0020] In the figure: 10, tank body; 11, steam diffusion pipe; 12, steam outlet; 13, first temperature sensor; 14, drain pipe; 15, exhaust pipe; 20, heating system; 21, main steam supply pipeline; 22, steam distribution pipeline; 23, first control valve; 24, compressed gas pipe; 25, high-temperature steam pipe; 26, second control valve; 27, third control valve. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the description of the present utility model, it is necessary to understand that when an element is considered to be "connected" to another element, it may be directly connected to another element or there may be intermediate elements at the same time. On the contrary, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0024] See also Figure 1 , which is a vulcanization tank with uniform temperature increase in a preferred embodiment of the utility model, is used to uniformly control the temperature of the vulcanization tank so that the steam can be evenly diffused and the product in the tank can be evenly heated to improve the vulcanization stability of the rubber product so that it can be successfully vulcanized in one time. Specifically, the vulcanization tank includes a tank body 10 and a heating system 20. At least four steam diffusion pipes 11 are arranged in the tank body 10. Each steam diffusion pipe 11 is evenly distributed on the inner wall of the tank body 10. A plurality of steam outlet holes 12 are arranged on the steam diffusion pipe 11. On the same cross section, the steam of each steam outlet hole 12 is sprayed into the tank body 10 to form a steam rotation circle; the heating system 20 is connected to the steam diffusion pipe 11.

[0025] The above-mentioned vulcanization tank forms a steam rotating circle in the tank body 10 by the cooperation of the tank body 10 and the heating system 20, utilizing the function of the steam diffusion pipe 11 of the tank body 10, so that various parts of the tank body 10 can be evenly heated to ensure that the surface temperature of the rubber product can be evenly increased, so that the temperature difference fluctuation of each part is small and the stability is high, thereby improving the qualified rate of the product.

[0026] In this embodiment, the steam diffusion tube 11 is roughly a circular tube, and its length is determined according to the length of the tank body 10. Each steam outlet 12 is set according to the length of the steam diffusion tube 11 and needs to be evenly distributed on the steam diffusion tube 11. The steam injection direction of the steam outlet 12 keeps in contact with the inner edge of the tank body 10 and moves along the same tangent direction. It can be understood that after the steam is ejected from the steam outlet, it moves along the inner wall of the tank body 10 and is ejected to the adjacent steam outlet, and forms a steam rotation circle in the tank body 10 with the steam ejected therefrom, so that the steam is evenly diffused in the tank body 10.

[0027] In one embodiment, a first temperature sensor 13 is provided between adjacent steam diffusion tubes 11 for detecting the temperature between the steam diffusion tubes 11 to ensure uniformity of the temperatures in the tank body 10 .

[0028] In this embodiment, the heating system 20 includes a main steam supply pipe 21 and a steam distribution pipe 22 connected to the main steam supply pipe 21. The steam distribution pipe 22 is connected to the steam diffusion pipe 11, and a first control valve 23 is provided between the steam distribution pipe 22 and the steam diffusion pipe 11 for controlling the steam injection amount of each steam diffusion pipe 11 to adjust the temperature uniformity of each part in the tank body 10.

[0029] In other embodiments, one end of the main steam supply pipeline 21 is connected to a compressed gas pipe 24 and a high-temperature steam pipe 25, the compressed gas pipe 24 is provided with a second control valve 26, and the high-temperature steam pipe 25 is provided with a third control valve 27. That is, the main steam supply pipeline 21 is a collection of two gases from the compressed gas pipe 24 and the high-temperature steam pipe 25, and the steam is also pressurized by the gas from the compressed gas pipe 24, so that the temperature and pressure of the steam in the tank body 10 meet the requirements of vulcanization. Among them, the compressed gas pipe 24 is a compressed air pipe or a compressed inert gas pipe, which is specifically selected according to the product to be vulcanized, and will not be described one by one here.

[0030] In this embodiment, the steam distribution pipe 22 is circular in shape, so that the steam distribution pipe 22 is arranged around the vulcanization tank, and the steam distribution pipe 22 and the vulcanization tank are insulated by heat insulation cotton.

[0031] Optionally, a second temperature sensor and a first pressure sensor are installed on the main steam supply pipeline 21 to monitor the total pressure and total temperature of the pipeline, so as to facilitate subsequent adjustments according to vulcanization requirements.

[0032] For safe production, a condensate collection tank (not shown) is provided at the bottom of the tank body 10, and the condensate collection tank is connected to a drain pipe 14, and a fourth control valve is provided on the drain pipe 14 to control the discharge of condensate. The fourth control valve is a steam trap. An exhaust pipe 15 is provided at the top of the tank body 10, and a safety valve is provided on the exhaust pipe 15 to control the pressure in the tank and avoid overpressure.

[0033] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A vulcanizing tank with uniform temperature increase, characterized in that: It includes a tank body and a heating system. At least four steam diffusion pipes are arranged in the tank body. Each of the steam diffusion pipes is evenly distributed on the inner wall of the tank body. A plurality of steam outlet holes are arranged on the steam diffusion pipes. On the same cross section, steam from each of the steam outlet holes is sprayed into the tank body to form a steam rotation circle. The heating system is connected to the steam diffusion pipes.

2. The vulcanizing tank with uniform temperature rise according to claim 1, characterized in that: The steam jetting direction of the steam outlet hole keeps in contact with the inner edge of the tank body and moves along the same tangent direction.

3. The uniformly heated vulcanizing tank according to claim 2, characterized in that: A first temperature sensor is arranged between adjacent steam diffusion tubes.

4. The vulcanizing tank with uniform temperature rise according to claim 1, characterized in that: The heating system comprises a main steam supply pipeline and a steam distribution pipeline connected to the main steam supply pipeline, the steam distribution pipeline is connected to the steam diffusion pipe, and a first control valve is arranged between the steam distribution pipeline and the steam diffusion pipe.

5. The vulcanizing tank with uniform temperature rise according to claim 4, characterized in that: One end of the main steam supply pipeline is connected to a compressed gas pipe and a high-temperature steam pipe. The compressed gas pipe is provided with a second control valve, and the high-temperature steam pipe is provided with a third control valve.

6. The vulcanizing tank with uniform temperature rise according to claim 5, characterized in that: The compressed gas pipe is a compressed air pipe or a compressed inert gas pipe.

7. The uniformly heated vulcanizing tank according to claim 4, characterized in that: The steam distribution pipe is circular in shape.

8. The vulcanizing tank with uniform temperature rise according to claim 4, characterized in that: The main steam supply pipeline is installed with a second temperature sensor and a first pressure sensor.

9. The vulcanizing tank with uniform temperature rise according to claim 1, characterized in that: A condensate collecting tank is provided at the bottom of the tank body, the condensate collecting tank is connected to a drain pipe, and a fourth control valve is provided on the drain pipe.

10. The vulcanizing tank with uniform temperature rise according to claim 1, characterized in that: An exhaust pipe is arranged on the top of the tank body, and a safety valve is arranged on the exhaust pipe.

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