Electric heating coil type nitrogen heating tank

Abstract

The utility model discloses an electric heating coil type nitrogen heating tank, which relates to the technical field and comprises a tank body filled with nitrogen, the heater is fixedly arranged on the tank body, and a heating part of the heater is positioned in the tank body; the exhaust valve is fixedly arranged on the tank body, and the air inlet end of the exhaust valve is communicated with one side of the interior of the tank body; the air supply assembly is mounted on the tank body; the air supply assembly comprises an air inlet valve installed on the tank body, an air inlet pipe with one pipe end fixedly connected with the inlet end of the air inlet valve and a heating pipe with one pipe end fixedly connected with the outlet end of the air inlet valve, and the heating pipe is located in the tank body. The air supply device has the advantages that air is sequentially introduced into the tank body through the air inlet pipe, the air inlet valve and the heating pipe through the air supply assembly, so that the pressure and the nitrogen amount of the tank body are constant, the supplemented nitrogen is heated through the heating pipe, the temperature in the tank body is constant, the nitrogen introduction stability in the foaming shoe manufacturing process is guaranteed, and the foaming shoe manufacturing efficiency is improved. And the material forming effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen tanks, and more specifically to an electric heating coil type nitrogen heating tank. Background Art

[0002] In the process of making supercritical foaming shoes, nitrogen needs to be used to provide several effects, such as: improving the compatibility of foaming materials, promoting the foaming effect of the foaming process, ensuring uniform foaming, maintaining material stability, increasing product durability, etc.:

[0003] Based on the above, a detailed description is given, such as improving the compatibility of foaming materials: One of the important roles of nitrogen in the supercritical foaming process is to improve the compatibility between the foaming material (such as polyurethane) and the filler, which can be achieved by using nitrogen as an inert gas. Since nitrogen does not react with other substances, it will not change the essential structure of the material, but can effectively improve the compatibility between materials, thereby improving the performance of the foaming material;

[0004] At the same time, in order to speed up the reaction efficiency after the nitrogen is introduced, the nitrogen is generally heated, similar to the existing {such as authorization (announcement) number: CN109555509B, a nitrogen heating device for oil extraction}, but the "nitrogen heating device for oil extraction" states that "an air inlet pipe is arranged at one end of the tank body, and an exhaust pipe is arranged at the other end of the tank body", and low-temperature nitrogen is directly introduced into the tank body to supplement nitrogen, which has a great impact on temperature changes, that is, in the process of making foam shoes, the stability of nitrogen introduction is insufficient, which may lead to insufficient foaming and uneven bubble size, and there is a disadvantage of affecting the mechanical properties and density distribution of the material. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and provide an electric heating coil type nitrogen heating tank.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] The utility model provides an electric heating coil type nitrogen heating tank, comprising:

[0008] A tank containing nitrogen;

[0009] A heater is fixedly mounted on the tank body, and a heating part of the heater is located inside the tank body;

[0010] An exhaust valve is fixedly mounted on the tank body, and an air inlet end of the exhaust valve is communicated with one side of the interior of the tank body;

[0011] Also included is a gas supplement component, which is installed on the tank body;

[0012] The air replenishing assembly comprises an air inlet valve installed on the tank body, an air inlet pipe with one end fixedly connected to the inlet end of the air inlet valve, and a heating pipe with one end fixedly connected to the outlet end of the air inlet valve, wherein the heating pipe is inside the tank body.

[0013] As a preferred technical solution of the utility model, the other end of the heating tube is located at the other side of the tank body relative to the air inlet end of the exhaust valve.

[0014] As a preferred technical solution of the utility model, the exhaust valve and the intake valve are both electric valves.

[0015] As a preferred technical solution of the utility model, it also includes a pressure gauge, which is fixed on the tank body, and the sensing end of the pressure gauge is fixedly penetrated into the interior of the tank body for communication.

[0016] As a preferred technical solution of the utility model, it also includes a temperature sensor, which is fixed on the tank body, and the sensing end of the temperature sensor is fixedly penetrated into the interior of the tank body for communication.

[0017] As a preferred technical solution of the utility model, a base frame is fixedly installed at the bottom end of the temperature sensor.

[0018] The beneficial effects of the utility model are as follows:

[0019] By installing the air replenishing component 4 on the tank body 1, the air is circulated into the tank body 1 through the air inlet pipe 42, the air inlet valve 41 and the heating pipe 43 in sequence to keep the pressure and nitrogen amount of the tank body 1 constant, and the replenished nitrogen is heated by the heating pipe 43 to keep the temperature inside the tank body 1 constant, thereby ensuring the stability of nitrogen introduction during the foaming shoe manufacturing process and improving the material molding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure numerals: tank body-1, heater-2, exhaust valve-3, air supply component-4, pressure gauge-5, temperature sensor-6, base frame-7, air intake valve-41, air intake pipe-42, heating pipe-43. DETAILED DESCRIPTION

[0022] See also Figure 1 , the utility model provides: an electric heating coil type nitrogen heating tank, comprising;

[0023] A tank 1 containing nitrogen;

[0024] The heater 2 is fixedly mounted on the tank body 1, and the heating part of the heater 2 is in the tank body 1 (the heater 2 may be an electric heating coil, etc. As shown in the figure, the heating tube part of the electric heating coil is in the tank body 1, and the terminal joint part connected at the top end is arranged outside the tank body 1, which can be regarded as the heater 2 penetrating into the tank body 1 at the top end of the tank body 1, and the penetration position is closed and connected);

[0025] The exhaust valve 3 is fixedly mounted on the tank body 1, and the air inlet end of the exhaust valve 3 is connected to one side of the inside of the tank body 1 (as shown in the figure, the exhaust valve 3 is arranged at the lower left position of the tank body 1, the air inlet end of the exhaust valve 3 is fixedly embedded in the inside of the tank body 1 for communication, and the air outlet end of the exhaust valve 3 is connected to the external exhaust pipe for use);

[0026] It also includes an air supply component 4, which is installed on the tank body 1;

[0027] The air supply assembly 4 includes an air inlet valve 41 mounted on the tank body 1 (as shown in the figure, the air inlet valve 41 is fixedly mounted at the bottom end of the tank body 1);

[0028] An air intake pipe 42 having one end fixedly connected to the inlet end of the air intake valve 41 (the other end of the air intake pipe 42 is connected to an external nitrogen supply device to introduce nitrogen into the air intake pipe 42);

[0029] and a heating pipe 43 having one end fixedly connected to the outlet end of the air inlet valve 41, the heating pipe 43 being located inside the tank body 1 (as shown in the figure, the outlet end of the air inlet valve 41 faces upward, i.e. the heating pipe 43 is arranged upward, and the nitrogen gas passes through the air inlet pipe 42, the air inlet valve 41 and the heating pipe 43 in sequence and flows into the tank body 1);

[0030] The supplemented nitrogen is heated by the heating tube 43 to keep the temperature inside the tank 1 constant, thereby ensuring the stability of nitrogen introduction during the foam shoe manufacturing process, improving the material molding effect (as shown in the figure, the heating tube 43 is a hollow tubular structure, and the heating tube 43 can also be an existing heating tube or a heating plate heating structure), and can accelerate the heating efficiency.

[0031] The other end of the heating tube 43 is located at the other side of the tank body 1 relative to the air inlet end of the exhaust valve 3 (such as Figure 1 As shown, when the air inlet end of the exhaust valve 3 is on the lower side of the tank body 1, the other end of the heating tube 43 is on the upper side of the tank body 1), the nitrogen introduced will not be directly discharged for use, and further heat equalization can be performed inside the tank body 1, thereby improving the thermal stability during use.

[0032] Wherein, the exhaust valve 3 and the intake valve 41 are both electric valves (electric valves such as solenoid valves, etc.), which are convenient to use. When the exhaust valve 3 is opened, the intake valve 41 is opened at the same time, and air can be discharged for use while air can be taken in for replenishment.

[0033] Among them, it also includes a pressure gauge 5, which is fixed on the tank body 1, and the sensing end of the pressure gauge 5 is fixedly penetrated into the interior of the tank body 1 for communication (the pressure gauge 5 can be a gas pressure sensor or a pressure transmitter, etc., and the model of the pressure transmitter can be: MI K-PX300, etc.), to detect the pressure inside the tank body 1 to improve safety. According to the above, when the exhaust valve 3 is used to vent air, the reduced pressure is constantly supplemented through the intake valve 41 to effectively maintain a stable pressure in the tank body 1.

[0034] It also includes a temperature sensor 6, which is fixed on the tank body 1, and the sensing end of the temperature sensor 6 is fixedly inserted into the interior of the tank body 1 for communication, so as to detect the temperature inside the tank body 1, improve safety, and facilitate and quickly adjust the temperature.

[0035] The bottom end of the temperature sensor 6 is fixed with a base frame 7 for supporting the tank body 1 to be stably placed for use;

[0036] It also includes a controller (the controller may be a PLC controller) which is connected to an external power source for controlling the power supply of electrical components in the tank so as to electrically open and close the above-mentioned heater 2, exhaust valve 3, pressure gauge 5, temperature sensor 6, intake valve 41 and heating tube 43.

[0037] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0038] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electric heating coil type nitrogen heating tank, comprising: A tank body (1) containing nitrogen; A heater (2) is fixedly mounted on the tank body (1), and a heating part of the heater (2) is located inside the tank body (1); An exhaust valve (3) is fixedly mounted on the tank body (1), and an air inlet end of the exhaust valve (3) is in communication with one side of the interior of the tank body (1); It is characterized in that It also includes an air supply assembly (4) which is installed on the tank body (1); The air supply assembly (4) comprises an air intake valve (41) mounted on the tank body (1), an air intake pipe (42) having one end fixedly connected to the inlet end of the air intake valve (41), and a heating pipe (43) having one end fixedly connected to the outlet end of the air intake valve (41), wherein the heating pipe (43) is located inside the tank body (1).

2. The electric heating coil type nitrogen heating tank according to claim 1, characterized in that: The other end of the heating tube (43) is located at the other side of the interior of the tank body (1) relative to the air inlet end of the exhaust valve (3).

3. The electric heating coil type nitrogen heating tank according to claim 1, characterized in that: The exhaust valve (3) and the intake valve (41) are both electric valves.

4. The electric heating coil type nitrogen heating tank according to claim 1, characterized in that: It also includes a pressure gauge (5) which is fixedly mounted on the tank body (1), and the sensing end of the pressure gauge (5) is fixedly inserted into the interior of the tank body (1) for communication.

5. The electric heating coil type nitrogen heating tank according to claim 1, characterized in that: It also includes a temperature sensor (6) which is fixedly mounted on the tank body (1), and the sensing end of the temperature sensor (6) is fixedly inserted into and communicated with the interior of the tank body (1).

6. The electric heating coil type nitrogen heating tank according to claim 1, characterized in that: A base frame (7) is fixedly mounted on the bottom end of the temperature sensor (6).

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