Hot box for stretch yarn machine

Abstract

The utility model discloses a hot box for a stretch yarn machine, which comprises a hot rail, a first pipeline and a second pipeline, the first pipeline and the second pipeline are positioned at two ends of the hot rail, the inside of the first pipeline is divided into a first chamber for guiding steam circulation and a second chamber for accommodating heat transfer media, and two ends of the hot rail are respectively communicated with the second chamber and the second pipeline. After steam is introduced into the first chamber, the steam directly heats a heat transfer medium (a diphenyl ether-biphenyl mixture) in the second chamber, and by-products of a pre-process are utilized, so that the device is low in energy consumption and pollution-free.

Description

Technical Field

[0001] This utility model relates to a spinning heating device, and more particularly to a heating box for an elastic yarn machine. Background Technology

[0002] The common heating method for the heating box of elastic yarn machines is: electric heating rods with a heat transfer medium (biphenyl ether-biphenyl mixture). Utilizing the medium's tendency to heat up and evaporate, the medium passes through the interior of the heating rail, heating the stainless steel rail, and then flows back under the action of the condenser. For example, utility model patent CN 211522437 U discloses a heating device for a deformation heating box. Excess steam exists in the pre-spinning process of chemical fiber plants; this steam is not fully utilized, leading to energy waste. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide a heating box for elastic yarn machines that consumes little energy and produces no pollution.

[0004] Technical solution: The present invention provides a heat box for an elastic yarn machine, including a heat rail, a first pipe and a second pipe located at both ends of the heat rail. The first pipe is divided to form a first chamber for guiding steam circulation and a second chamber for containing heat transfer medium. The two ends of the heat rail are connected to the second chamber and the second pipe, respectively.

[0005] Preferably, the inlet of the first chamber is provided with an electronic control component for controlling the steam flow.

[0006] Preferably, the second chamber is equipped with a temperature sensor, which is connected to the electronic control assembly.

[0007] Preferably, to prevent steam leakage, a pressure sensor is provided at the inlet of the first chamber, and the pressure sensor is connected to the electronic control assembly.

[0008] Preferably, the outlet of the first chamber is equipped with a steam recovery device and a drain valve.

[0009] Preferably, a third pipe for guiding the return flow of the heat transfer medium is provided between the second pipe and the second chamber.

[0010] Preferably, the second chamber surrounds the first chamber.

[0011] Preferably, the first pipe is covered with an insulation layer.

[0012] Preferably, flexible heat insulation cotton is provided on both sides and at the bottom of the hot rail.

[0013] Beneficial effects: Compared with the prior art, this utility model has the following advantages: 1. Low energy consumption and no pollution: Steam is introduced into the first chamber to heat the heat transfer medium (biphenyl ether-biphenyl mixture) in the second chamber, utilizing the by-products of the previous process, resulting in low energy consumption and no pollution; 2. Rapid heating: Heat is directly conducted through pipes, enabling rapid heating; 3. Precise control: Through electronic control components and sensors, parameters such as temperature and pressure are monitored to precisely control the steam state in the first chamber, achieving accurate and rapid temperature control and avoiding overheating; 4. Good yarn consistency between spindles, effectively ensuring spinning quality; 5. Simple structure, low equipment manufacturing cost, convenient maintenance and equipment management, and low equipment failure rate. Attached Figure Description

[0014] Figure 1 This is a top view of the structure of this utility model;

[0015] Figure 2 for Figure 1 Sectional view along line AA;

[0016] Figure 3 This is a schematic diagram of the first pipeline structure of this utility model. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0018] Figure 1 shows a top view of the elastic yarn machine. The machine includes several parallel hot rails 5 located inside a heating chamber. These rails are used to heat and guide the yarn bundles, causing them to deform. The heating chamber shell at both ends of the hot rails 5 has yarn bundle guides on its top, bottom, left, and right sides to prevent the yarn bundles from rubbing against the edges of the heating chamber shell during insertion. A top cover is hinged to the top of the heating chamber via hinges 8. The top cover is laterally hinged to the shell, and a spring 7 connects the end of the top cover to the outer shell, used to tighten the top cover.

[0019] like Figure 2As shown, the heating rail 5 is arc-shaped and arched upwards. Inside the heating rail 5 is a pipe 3. The heated heat transfer medium enters the pipe 3 and heats the heating rail 5, thereby heating the filament bundle guided on the heating rail 5. A first pipe 1 and a second pipe 6 are embedded in the elastic yarn machine at both ends of the heating rail 5. The first pipe 1 is divided by a heat-transferable material to form a first chamber 2 and a second chamber. The first chamber 2 is used to guide steam circulation, and the second chamber is used to contain the heat transfer medium (biphenyl ether-biphenyl mixture). The first chamber 2 and the second chamber are either inner and outer chambers connected or parallel, with inner and outer chamber connection being preferred to ensure sufficient heat exchange. There are multiple first chambers 2. The second chambers surround the first chambers. The heat transfer material is stainless steel or other metal. The two ends of the pipe 3 inside the heating rail 5 are connected to the second chamber and the second pipe 6, respectively. The heat transfer medium heated by the steam in the first chamber 2 flows from the pipe 3 to the second pipe 6. The second pipe 6 is used to collect the heat transfer medium after heat exchange with the heating rail 5. A third pipe (not shown) is also provided between the second pipe 6 and the first pipe 1. This pipe guides the heat transfer medium to flow back from the second pipe 6 to the second chamber. In order to achieve sufficient heat exchange, the first pipe 1 is covered with an insulation layer, and flexible insulation cotton 4 is provided on both sides and the bottom of the heat rail 5.

[0020] like Figure 3 To precisely control the heating temperature, an electrical control component 9 is installed at the inlet 13 of the first chamber 2. The electrical control component 9 is used to control the steam flow rate. A temperature sensor 15 is installed in the second chamber and is connected to the electrical control component 9. The temperature sensor 15 is used to measure the temperature of the heat transfer medium in the second chamber and feeds the temperature back to the electrical control component 9. The electrical control component 9 adjusts the steam flow rate and controls the temperature of the biphenyl medium. A pressure sensor 14 is installed at the inlet 13 of the first chamber 2 and is connected to the electrical control component 9. The pressure sensor 14 is used to detect the inlet and outlet pressures. The ratio or difference between the two is used to determine whether there is a steam leak. A steam recovery device 10 and a drain valve 11 are installed at the outlet 12 of the first chamber 2.

Claims

1. A heating box for an elastic yarn machine, comprising a heating rail (5), a first pipe (1) and a second pipe (6) located at both ends of the heating rail, characterized in that, The first pipe (1) is divided into a first chamber (2) for guiding steam circulation and a second chamber for containing heat transfer medium. The two ends of the heat rail (5) are connected to the second chamber and the second pipe (6), respectively.

2. The heating box for the elastic yarn machine according to claim 1, characterized in that, The inlet of the first chamber (2) is equipped with an electronic control component (9) for controlling the steam flow.

3. The heating box for the elastic yarn machine according to claim 2, characterized in that, The second chamber is equipped with a temperature sensor (15), which is connected to the electronic control assembly (9).

4. The heating box for the elastic yarn machine according to claim 2, characterized in that, A pressure sensor (14) is provided at the entrance of the first chamber (2), and the pressure sensor (14) is connected to the electronic control assembly (9).

5. The heating box for the elastic yarn machine according to claim 1 or 2, characterized in that, The outlet of the first chamber (2) is equipped with a steam recovery device (10) and a drain valve (11).

6. The heating box for the elastic yarn machine according to claim 1, characterized in that, A third pipe is provided between the second pipe and the second chamber to guide the return flow of the heat transfer medium.

7. The heating box for the elastic yarn machine according to claim 1, characterized in that, The second chamber surrounds the first chamber (2).

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