A steam treatment furnace

Abstract

The utility model provides a kind of steam treatment furnace, including vaporization chamber, steam reaction kettle, water inlet pipe and exhaust pipe, the vaporization chamber is located below steam reaction kettle and both are communicated by exhaust pipe, the vaporization chamber is equipped with water inlet for installing water inlet pipe;The shell of the vaporization chamber is made of iron or copper material and is heated by electric heating tube.The utility model can reduce equipment cost, reduce energy consumption, reduce total floor area of equipment, also need not to carry out special protection to exhaust pipe, steam flow can be more accurately controlled simultaneously, reduce the total cost of production, have practical feasibility.

Description

Technical Field

[0001] This utility model relates to a steam treatment furnace. Background Technology

[0002] Existing steam treatment furnaces all require an additional steam generator, which is not only costly and space-consuming, but also requires the installation of external pipelines. After standing, water can easily accumulate in the pipelines, which may cause the products to rust in the next steam treatment and cause a sudden increase in the pressure inside the furnace. In addition, the high-temperature steam flowing in the external pipelines can easily lose heat, reducing energy utilization. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a steam treatment furnace with a simple structure and stable steam flow.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a steam treatment furnace, including a vaporization chamber, a steam reactor, a water inlet pipe and a steam exhaust pipe, wherein the vaporization chamber is located below the steam reactor and the two are connected through the steam exhaust pipe, and the vaporization chamber is provided with a water inlet for installing the water inlet pipe; the shell of the vaporization chamber is made of iron or copper material and is heated by an electric heating tube.

[0005] In the above technical solution, since the vaporization chamber is located below the steam reactor and the two are connected by a steam exhaust pipe, when the work stops, the water droplets in the steam exhaust pipe will automatically flow into the vaporization chamber. Furthermore, since the shell of the vaporization chamber is made of iron or copper and is heated by an electric heating tube, the shell of the vaporization chamber can be used as an energy storage device. Before water is introduced, the shell is heated to a temperature of about 550°C, which can generate steam, thus preventing the lack of steam generation due to low temperature.

[0006] Preferably, the maximum steam flow rate of the exhaust pipe is 18m³. 3 / h, the weight of the vaporization chamber shell shall not be less than 8kg.

[0007] Preferably, the power of the heating element is 15kW.

[0008] Preferably, the ratio of the diameter of the water inlet pipe to the diameter of the steam exhaust pipe is 34.5. Since water will vaporize violently when it encounters high temperature, its volume will expand instantly, which poses a risk of explosion. By limiting the ratio of the diameter of the water inlet pipe to the diameter of the steam exhaust pipe, the pressure surge caused by too much water entering the pipe and the inability to discharge steam in time can be fundamentally prevented.

[0009] Preferably, a section of the exhaust pipe is wound around the outer periphery of the steam reactor, forming a coil structure. This can reduce heat loss to a certain extent.

[0010] Furthermore, a check valve is installed at the inlet of the vaporization chamber to control the absolute pressure at the inlet to 200 kPa. When vaporization in the vaporization chamber is too vigorous and the steam pressure exceeds the inlet pressure, the check valve will be closed, thereby stopping the water intake.

[0011] Furthermore, a safety valve is installed on the shell of the vaporization chamber, with an opening pressure of 500 kPa. If the pressure in the vaporization chamber exceeds 500 kPa, the safety valve will automatically open to prevent an explosion.

[0012] The beneficial effects of this utility model are: it can reduce equipment costs, reduce energy consumption, reduce the total floor space occupied by the equipment, and eliminate the need for special protection of the exhaust pipe. At the same time, it can more accurately control the steam flow rate, reduce the total production cost, and has practical feasibility. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the steam treatment furnace in an embodiment of this utility model;

[0014] The attached figures are labeled as follows:

[0015] 1. Vaporization chamber; 2. Steam reactor; 3. Water inlet pipe; 4. Steam exhaust pipe. Detailed Implementation

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0017] It should be noted in advance that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figure 1 The steam treatment furnace shown includes a vaporization chamber 1, a steam reactor 2, a water inlet pipe 3, and a steam exhaust pipe 4. The vaporization chamber 1 is located below the steam reactor 2 and the two are connected by the steam exhaust pipe 4. A section of the steam exhaust pipe 4 is wound around the outer periphery of the steam reactor 2 to form a coil structure. The vaporization chamber 1 is provided with a water inlet for installing the water inlet pipe 3. The shell of the vaporization chamber 1 is made of iron or copper material and is heated by an electric heating tube.

[0019] In this embodiment, the maximum steam flow rate of exhaust pipe 4 is 18m³. 3 / h; the shell weight of vaporization chamber 1 is not less than 8kg; the power of the electric heating tube is 15kW.

[0020] Since the vaporization chamber 1 is located below the steam reactor 2 and the two are connected by the exhaust pipe 4, when the work stops, the water droplets in the exhaust pipe 4 will automatically flow into the vaporization chamber 1. Furthermore, since the shell of the vaporization chamber 1 is made of iron or copper and is heated by electric heating tubes, the shell of the vaporization chamber 1 can be used as an energy storage device. Before water is introduced, the shell is heated to a temperature of about 550°C, which can generate steam, thus preventing the lack of steam generation due to low temperature.

[0021] Because water vaporizes violently when exposed to high temperatures, its volume expands instantly, posing a risk of explosion. This embodiment addresses and mitigates this risk through the following three measures:

[0022] 1) Set the ratio of the diameter of the water inlet pipe 3 to the diameter of the steam exhaust pipe 4 to 34.5. By limiting the ratio of the diameter of the water inlet pipe 3 to the diameter of the steam exhaust pipe 4, the pressure surge caused by too much water entering the pipe and the inability to discharge steam in time can be fundamentally prevented.

[0023] 2) A one-way valve is installed at the inlet of vaporization chamber 1 to control the absolute pressure at the inlet to 200 kPa; when vaporization in vaporization chamber 1 is too violent and the steam pressure is greater than the inlet pressure, the one-way valve will be closed, thereby stopping the water intake.

[0024] 3) A safety valve is also installed on the shell of vaporization chamber 1. The opening pressure of the safety valve is 500 kPa. As long as the pressure of vaporization chamber 1 exceeds 500 kPa, the safety valve will open automatically to prevent an explosion.

[0025] The steam treatment furnace provided in this embodiment can reduce equipment costs, energy consumption, and the total floor space of the equipment. It also eliminates the need for special protection of the exhaust pipe 4 and allows for more precise control of steam flow, thereby reducing the total production cost. It is a practically feasible solution.

[0026] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

[0027] To facilitate understanding by those skilled in the art of the improvements of this utility model over the prior art, some of the drawings and descriptions of this utility model have been simplified, and for clarity, some other elements have been omitted from this application. Those skilled in the art should realize that these omitted elements may also constitute the content of this utility model.

Claims

1. A steam treatment furnace, characterized in that: It includes a vaporization chamber (1), a steam reactor (2), a water inlet pipe (3), and a steam exhaust pipe (4). The vaporization chamber (1) is located below the steam reactor (2) and the two are connected by the steam exhaust pipe (4). The vaporization chamber (1) is provided with a water inlet for installing the water inlet pipe (3). The shell of the vaporization chamber (1) is made of iron or copper material and is heated by an electric heating tube.

2. The steam treatment furnace according to claim 1, characterized in that: The maximum steam flow rate of the exhaust pipe (4) is 18m³. 3 / h, the shell weight of the vaporization chamber (1) shall not be less than 8kg.

3. The steam treatment furnace according to claim 1 or 2, characterized in that: The heating element has a power of 15kW.

4. The steam treatment furnace according to claim 1 or 2, characterized in that: The ratio of the diameter of the water inlet pipe (3) to the diameter of the steam exhaust pipe (4) is 34.

5.

5. The steam treatment furnace according to claim 1 or 2, characterized in that: The exhaust pipe (4) has a section wrapped around the outer periphery of the steam reactor (2) to form a coil structure.

6. The steam treatment furnace according to claim 1 or 2, characterized in that: A one-way valve is installed at the inlet of the vaporization chamber (1) to control the absolute pressure at the inlet to 200 kPa.

7. The steam treatment furnace according to claim 1 or 2, characterized in that: A safety valve is also installed on the shell of the vaporization chamber (1), and the opening pressure of the safety valve is 500 kPa.

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