Waste heat recycling device for setting machine

Abstract

The utility model relates to the field of waste heat utilization of setting machines, and discloses a waste heat recycling device for a setting machine, which comprises a setting machine and a heat insulation plate, an insulating cavity; the circulating water pipe is mounted in the heat insulation cavity; the water inlet pipe is connected with one end of the circulating water pipe; the water outlet pipe is fixed at one end of the circulating water pipe away from the water inlet pipe; the water valve is mounted on the supporting rods connecting the water inlet pipe and the water outlet pipe with the circulating water pipe; the air exchange port is formed in the bottom of the setting machine corresponding to the circulating water pipe; and the fan is mounted below the air exchange port corresponding to the circulating water pipe. The draught fan is installed at the position where the circulating water pipe passes through the bottom of the setting machine, heat dissipated by the circulating water pipe is sent into the setting machine along with fresh air through the draught fan, the fresh air is preheated, the heating time of the setting machine for the fresh air is shortened, and the circulating water pipe can continuously absorb heat after passing through the draught fan. Hot water in the circulating water pipe is reused, and the utilization rate of waste heat of the setting machine is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat utilization of a stenter, and particularly relates to a waste heat recycling device for a stenter. Background Technique

[0002] A stenter is a device that uses hot air to dry and finish fabrics and shape the fabrics. It is one of the main energy-consuming devices in the textile dyeing and finishing industry. Among them, there are various ways to supply hot air. Gas or light diesel can be directly burned in the stenter, or it can be heated with circulating heat-conducting oil or steam, or it can also be heated by an electric heating method.

[0003] During the actual operation of the stenter, the wet and hot air will come into contact with oil stains and cause pollution during the continuous circulation inside. To ensure the safe and stable operation of the equipment, a part of the 180°C wet and hot air (referred to as "waste heat air") needs to be extracted from the stenter every hour, and a certain amount of normal-temperature air is introduced as fresh air for supplementation. At present, this part of the waste heat air is directly discharged into the atmosphere, wasting heat. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a waste heat recycling device for a stenter, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions:

[0006] The utility model discloses a waste heat recycling device for a stenter, including a stenter, and an exhaust gas discharge port is opened at the top of the stenter.

[0007] A heat preservation board is fixed on the outer side of the stenter.

[0008] A heat insulation cavity is located between the stenter and the heat preservation board.

[0009] A circulating water pipe is installed inside the heat insulation cavity.

[0010] An inlet water pipe is connected to one end of the circulating water pipe through a support rod.

[0011] An outlet water pipe is fixed at the end of the circulating water pipe far from the inlet water pipe.

[0012] A water valve is installed on the support rod where the inlet water pipe and the outlet water pipe are connected to the circulating water pipe.

[0013] An air exchange port is opened at the bottom of the stenter corresponding to the position of the circulating water pipe.

[0014] A fan is installed below the circulating water pipe corresponding to the air exchange port.

[0015] Furthermore, support plates are fixed at positions close to the inner walls on both sides of the stenter between the two groups of circulating water pipes, and fixing rings are fixed on the tops of the support plates.

[0016] Furthermore, a transmission shaft is sleeved inside the fixing ring, a worm gear is fixed at one end of the transmission shaft, and a baffle is fixed on the outer wall of the transmission shaft.

[0017] Furthermore, a worm that cooperates with the worm gear at the end of the transmission shaft is installed on the side of the worm gear.

[0018] Furthermore, one end of the worm is connected to a motor.

[0019] Furthermore, two groups of symmetrically arranged filter boxes are installed on the top of the stenter.

[0020] Compared with the prior art, the present utility model has the following beneficial effects:

[0021] 1. The present utility model fixes a heat insulation board on the outside of the stenter and installs circulating water pipes inside the heat insulation cavity, so that the circulating water inside the circulating water pipes recovers the waste heat of the stenter. Moreover, a fan is installed at the position where the circulating water pipes pass through the bottom of the stenter. Through the fan, the heat dissipated by the circulating water pipes is sent into the stenter together with the fresh air to preheat the fresh air, reducing the heating time of the stenter for the fresh air. And after passing through the fan, the circulating water pipes can continue to absorb heat to reuse the hot water inside the circulating water pipes, improving the utilization rate of the waste heat of the stenter.

[0022] 2. The present utility model installs filter boxes on both sides of the waste gas discharge port at the top of the stenter, and the filter boxes are in the shape of right-angled triangles. When discharging waste gas, it first passes through the filter plate on the vertical side for filtration, and then enters the inside of the filter box, and is secondarily filtered through the guidance of the inclined filter plate of the filter box, improving the filtering effect of the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the front three-dimensional structure diagram of the present utility model;

[0024] Figure 2 is the rear three-dimensional structure diagram of the present utility model;

[0025] Figure 3 is the front sectional view of the present utility model;

[0026] Figure 4 is the side sectional view of the present utility model;

[0027] Figure 5 is Figure 4 the enlarged view of A in

[0028] The reference numerals in the figure respectively represent: 1, stenter; 2, heat preservation board; 3, heat insulation cavity; 4, circulating water pipe; 5, water inlet pipe; 6, water outlet pipe; 7, water valve; 8, air exchange opening; 9, fan; 10, support plate; 11, fixing ring; 12, transmission shaft; 13, baffle; 14, worm; 15, motor; 16, filter box. Specific implementation mode

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 - 5 , including a stenter 1, an exhaust gas discharge port is opened at the top of the stenter 1, limiting plates are arranged on both sides of the exhaust gas discharge port, and a ventilation hole is opened in the middle of the limiting plates. A heat preservation board 2 is fixed on the outside of the stenter 1; a heat insulation cavity 3 is located between the stenter 1 and the heat preservation board 2, so that the heat dissipated by the stenter 1 stays inside the heat insulation cavity 3, reducing the heat conduction force of the heat preservation board 2, and thus ensuring the heating of the stenter 1; a circulating water pipe 4 is installed inside the heat insulation cavity 3, and the number of the circulating water pipes 4 is two or more. The bottom of the circulating water pipe 4 passes through the bottom of one end of the feeding port of the stenter 1. When water is introduced into the circulating water pipe 4, the hot air inside the heat insulation cavity 3 exchanges heat with the circulating water pipe 4, and the cold water inside the circulating water pipe 4 absorbs heat from the circulating water pipe 4, thereby increasing the water temperature; a water inlet pipe 5 is connected to one end of the circulating water pipe 4 through a support rod; a water outlet pipe 6 is fixed at the end of the circulating water pipe 4 away from the water inlet pipe 5; a water valve 7 is installed on the support rod where the water inlet pipe 5 and the water outlet pipe 6 are connected to the circulating water pipe 4, and the flow of water inside each circulating water pipe 4 is controlled by the water valve 7, so as to change the heat absorption of the circulating water pipe 4 from the inside of the heat insulation cavity 3; an air exchange opening 8 is opened at the position of the bottom of the stenter 1 corresponding to the circulating water pipe 4; a fan 9 is installed below the circulating water pipe 4 corresponding to the air exchange opening 8. The fan 9 blows air on the circulating water pipe 4, so that the circulating water pipe 4 with attached heat sends the heat it emits into the stenter 1, preheating the fabric entering the stenter 1, so that the fabric can be heated in advance when being shaped, facilitating the subsequent increase of the fabric temperature, thereby reducing the heating time of the stenter 1 and improving the working efficiency of the stenter 1. And after the fan 9 sends the waste heat emitted by the circulating water pipe 4 into the stenter 1, the water source inside the circulating water pipe 4 continues to circulate, absorbing the heat dissipated by the stenter 1 into the heat insulation cavity 3, so that the water source can continue to be used after absorbing heat, improving the utilization rate of waste heat.

[0031] Two sets of circulating water pipes 4 are fixed with support plates 10 at positions close to the inner walls on both sides of the stenter 1. A fixing ring 11 is fixed on the top of the support plate 10. A transmission shaft 12 is sleeved inside the fixing ring 11. One end of the transmission shaft 12 is fixed with a worm gear. A baffle 13 is fixed on the outer wall of the transmission shaft 12. The diameter of the baffle 13 is equal to the inner diameter of the heat insulation chamber 3. When the transmission shaft 12 drives the baffle 13 to rotate and the baffle 13 is parallel to the support plate 10, the baffle 13 forms a separate chamber between the two sets of circulating water pipes 4. And since the exhaust gas outlet of the stenter 1 is located at the top of the stenter 1, when the exhaust gas is discharged, the heat in the exhaust gas is guided through the heat insulation chamber 3. When the exhaust gas is guided through the heat insulation chamber 3, the chamber separated by the baffle 13 can slow down the flow of the exhaust gas, thereby reducing the loss of heat and ensuring the heat absorption of the circulating water pipes 4 inside the heat insulation chamber 3. The circulating water pipes 4 at different positions absorb different amounts of heat. When recycling the water source inside the circulating water pipes 4, the circulating water pipes 4 that absorb less heat can be closed through the water valve 7, so that the heat of the recycled water source increases. A worm 14 is installed on the side of the worm gear at the end of the transmission shaft 12. One end of the worm 14 is connected to a motor 15. The bottom of the motor 15 is installed and fixed through the mounting plate fixed at the bottom of the heat preservation plate 2. The motor 15 is driven to rotate by the worm 14, so that the motor 15 drives the transmission shaft 12 to rotate through meshing with the worm gear, thereby controlling the opening and closing of the baffle 13.

[0032] Two sets of symmetrically arranged filter boxes 16 are installed on the top of the stenter 1. The filter boxes 16 are in the shape of a triangular support leg. An installation hole is opened at a position corresponding to the filter box 16 on one side of the heat preservation plate 2. The filter box 16 is inserted into the heat insulation chamber 3 from the installation hole, so that the side of the filter box 16 fits against the limiting plate fixed on the top of the stenter 1. When the exhaust gas is discharged, the exhaust gas flows to both sides of the heat insulation chamber 3 through the ventilation holes opened on the limiting plate. When flowing, it first contacts the filter screen on the side of the filter box 16. When the exhaust gas passes through the side filter plate, it enters the inside of the filter box 16. Through the inclined guiding of the filter box 16, the exhaust gas is dispersed and filtered again through the filter plate on the top of the filter box 16, further improving the filtering effect of the exhaust gas. And when cleaning and replacing the filter box 16, the filter box 16 can be directly pulled out from the installation hole opened on the heat preservation plate 2, and the operation is simple and convenient.

[0033] Working principle: The stenter 1 discharges waste gas through the waste gas discharge port opened at the top. The waste gas enters the interior of the heat insulation chamber 3 and flows to both sides. When passing through the filter box 16, it is filtered on both sides by the filter box 16 to reduce the impurity content in the waste gas. The waste gas filtered by the filter box 16 continues to flow in the heat insulation chamber 3 with the residual heat of the stenter 1, enters the two-side positions of the heat insulation chamber 3, and the circulating water is sent into the interior of the circulating water pipe 4 from the water inlet pipe 5. The circulating water pipe 4 located in the heat insulation chamber 3 absorbs the residual heat in the waste gas. The circulating water exchanges heat with the circulating water pipe 4 to make the absorbed heat flow and reduce the temperature inside the heat insulation chamber 3. When ventilating the interior of the stenter 1, the fan 9 sends the heat dissipated by the circulating water pipe 4 into the interior of the stenter 1 together with the fresh air to increase the temperature of the fresh air and reduce the time required for reheating the fresh air. The circulating water continues to flow and absorb heat. And when the waste gas emission volume of the stenter 1 is small, the motor 15 can drive the worm 14 to rotate, so that the transmission shaft 12 rotates together with the worm 14, and thus several chambers are separated in the heat insulation chamber 3 through the baffle 13. The upper chambers can make the waste gas and heat stay for a longer time, and the circulating water pipe 4 located in the upper chamber can absorb the heat in the chamber more precisely. And the circulating water pipe 4 with low heat absorption can be closed through the water valve 7 to ensure the temperature of the circulating water when it exits.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recycling device for a setting machine, comprising a setting machine (1), wherein a waste gas discharge port is provided at the top of the setting machine (1). It is characterized in that Also included are: A heat preservation plate (2) is fixed on the outside of the setting machine (1); A heat-insulating cavity (3) is located between the setting machine (1) and the heat-insulating plate (2); A circulating water pipe (4) is installed inside the heat insulation cavity (3); A water inlet pipe (5) is connected to one end of the circulating water pipe (4) via a support rod; A water outlet pipe (6) is fixed to an end of the circulating water pipe (4) away from the water inlet pipe (5); A water valve (7) is installed on a support rod connecting the water inlet pipe (5) and the water outlet pipe (6) with the circulating water pipe (4); An air exchange port (8) is provided at a position corresponding to the circulating water pipe (4) at the bottom of the setting machine (1); The fan (9) is installed below the air exchange port (8) corresponding to the circulating water pipe (4).

2. The waste heat recycling device for a setting machine according to claim 1, characterized in that: A support plate (10) is fixed between the two groups of circulating water pipes (4) and close to the inner walls on both sides of the shaping machine (1), and a fixing ring (11) is fixed on the top of the support plate (10).

3. The waste heat recycling device for a setting machine according to claim 2, characterized in that: The interior of the fixed ring (11) is sleeved with a transmission shaft (12); a worm gear is fixed to one end of the transmission shaft (12); and a baffle (13) is fixed to the outer wall of the transmission shaft (12).

4. The waste heat recycling device for a setting machine according to claim 1, characterized in that: A worm (14) matching with the worm wheel is installed on the side of the worm wheel at the end of the transmission shaft (12).

5. The waste heat recycling device for a setting machine according to claim 4, characterized in that: One end of the worm (14) is connected to a motor (15).

6. The waste heat recycling device for a setting machine according to claim 1, characterized in that: Two groups of mutually symmetrical filter boxes (16) are installed on the top of the setting machine (1).

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