CN110118485A - A kind of forming machine with waste gas residual heat recycling function - Google Patents

Abstract

The invention discloses a setting machine with the function of recovering waste heat from waste gas, which is characterized in that it includes a body, a thermal cycle box, a heating furnace, a burner, and an exhaust mechanism, and the exhaust mechanism is respectively connected to the heat cycle box and the body , an air supply pipe is connected between the thermal cycle box and the heating furnace, the outlet of the burner is connected to the heating furnace, a drying chamber is provided inside the fuselage, and a tee is provided at the lower left side of the drying chamber. As for the diversion valve, the flange on the right side of the heating furnace is connected with a variable-diameter connecting pipe, and the variable-diameter connecting pipe is flange-connected with the three-way diversion valve. The invention has a reasonable design, can effectively control the exhaust rate of the waste gas, better perform heat exchange with the fresh air in the thermal cycle box, and fully recover and utilize the heat of the waste gas.

Description

A setting machine with the function of recovering waste heat from exhaust gas

technical field

The invention relates to the technical field of setting machine ovens, in particular to a setting machine with waste gas waste heat recovery function.

Background technique

In recent years, with the rapid expansion of the production capacity of printing and dyeing enterprises, the number of new setting machines has increased dramatically, and the environmental complaints and pollution disputes caused by the waste heat discharge of setting machines are increasing day by day. The heat setting machine is a device that uses hot air to dry, arrange and shape the fabric. The waste heat recovery of the setting machine is a multi-benefit project. All aspects can produce significant economic and social benefits. The existing waste heat recovery application measures are improper, resulting in unsatisfactory energy saving and emission reduction effects.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a setting machine with the function of recovering waste heat from exhaust gas.

To achieve the above object, the present invention provides the following technical solutions:

A sizing machine with the function of recovering waste heat from exhaust gas, including a body, a thermal cycle box, a heating furnace, a burner, and an exhaust mechanism. The exhaust mechanism is respectively connected to the thermal cycle box and the body. The air supply pipe is connected, the outlet of the burner is connected with the heating furnace, there is a drying chamber inside the fuselage, a three-way diversion valve is provided at the lower left side of the drying chamber, and a variable diameter connecting pipe is connected to the flange on the right side of the heating furnace. The variable-diameter connecting pipe is flange-connected to the three-way diversion valve, and the other two ends of the three-way diversion valve are respectively flange-connected with the main air inlet pipe and the main air duct. The bottom of the fuselage is provided with the first air duct, the second The lengths of the branch air duct, the third air duct, the first air duct, the second air duct, and the third air duct increase in sequence, and the left ends of the first air duct, the second air duct, and the third air duct Connected with the main air duct, there are fans on the upper right side of the first air duct, the second air duct, and the third air duct, and the fans are located on the first air duct, the second air duct, and the third air duct. There is an air outlet at the lower position. There are upper and lower nozzles facing up and down inside the fuselage. A support block is connected between the right ends of the upper and lower nozzles and the right wall of the fuselage. The left sides of the upper and lower nozzles are The air inlet pipe of the upper air nozzle and the air inlet pipe of the lower air nozzle are connected. The upper flange of the air inlet main pipe is connected with the air inlet branch pipe. There is a deflector at the connection between the branch pipe connected to the air inlet pipe and the air inlet branch pipe. The angle between the deflector plate and the branch pipe is 45 degrees. There are support plates inside the upper air nozzle and the lower air nozzle. The opposite side of the lower air nozzle is equipped with a bottom plate, and several air outlet holes are opened on the support plate and the bottom plate. The position of the air outlet holes on the support plate corresponds to the position of the air outlet holes on the bottom plate. A partition is connected, and a traverse block is provided in the cavity on the right side of the partition between the support plate and the bottom plate. A chute is provided inside the traverse block, a traverse plate is provided inside the chute, and several For the first through hole corresponding to the upper and lower sides, several second through holes are opened on the traversing plate. The diameters of the first through hole, the second through hole and the air outlet hole are the same. The position on the right side of the first through hole on the traversing block A third through hole is opened, and a fourth through hole is opened on the position on the right side of the second through hole on the traversing plate. The diameters of the second through hole and the fourth through hole are the same and smaller than the diameter of the air outlet hole. There are a first cylinder and a second cylinder, the right side of the traversing block is connected with a connecting frame, the front end of the piston rod of the first cylinder is connected with the connecting frame, and the front end of the piston rod of the second cylinder is connected with the right end of the traversing plate; exhaust The mechanism includes a number of exhaust gas discharge branch pipes, exhaust gas discharge main pipes, and exhaust gas filter mechanisms. Several exhaust gas discharge branch pipes are connected to the drying chamber, and the other end of the exhaust gas discharge branch pipes is connected to the exhaust gas discharge main pipe. The lower part is inclined downwards, the lower end of the waste gas filter mechanism is connected with a drain pipe, the inside of the waste gas filter mechanism is provided with a filter screen, the upper end of the waste gas filter mechanism is connected with the thermal cycle box, and a valve plate is installed inside the exhaust gas discharge branch pipe, and the valve plate is connected with a connecting shaft. The right end of the connecting shaft is connected with an adjustment handwheel.

As preferably, the thermal cycle box includes a box body, the left and right ends of the box body are respectively connected with an air outlet hood and an air inlet hood, the right end of the air inlet pipe is connected with the left end of the air outlet hood, and the right side of the air inlet hood is provided with an induced draft fan. There is an exhaust gas discharge port on the right side of the box body, the left tube plate is fixedly connected to the left side inside the box body, the right tube plate is set on the right side inside the box body, and a number of heat exchange tubes are arranged horizontally in the box body, and one end of the heat exchange tube is connected to the left tube plate Threaded connection, the other end and the right tube plate are detachably connected, and there are several baffles in the box body.

As a preference, the right tube plate is provided with a round hole with an aperture larger than the diameter of the heat exchange tube, the part inserted into the round hole on the right side of the heat exchange tube is provided with an external thread, and the inner ring of the round hole is provided with an external thread, and the round hole and the heat exchange tube There is a first fixing sleeve between them, the inside and outside of the first fixing sleeve are provided with internal threads, the internal threads on the outside of the first fixing sleeve are screwed with the external threads on the inner ring of the round hole, the inside of the first fixing sleeve The inner thread is screwed with the outer thread on the heat exchange tube, and the first fixing ring is connected to the right side of the first fixing sleeve, and the diameter of the first fixing ring is larger than the diameter of the circular hole.

As a preference, the right tube plate is provided with a round hole with a diameter larger than the diameter of the heat exchange tube, and a second fixing sleeve is arranged between the round hole and the heat exchange tube, the diameter of the second fixing sleeve is smaller than the diameter of the round hole, and the second There is a rubber ring on the inside of the fixing sleeve, and the inner side of the rubber ring fits the heat exchange tube. There are a number of shrapnels on the outside of the second fixing sleeve. The second fixing ring is connected to the right side of the second fixing sleeve. The second fixing ring The diameter is larger than the hole diameter of the circular hole.

Preferably, a thermometer is provided on the heating furnace.

Compared with the prior art, the beneficial effects of the present invention are: the discharge speed of exhaust gas can be uniformly adjusted, so that the thermal cycle box can fully recover the waste heat of exhaust gas; the heat exchange tube is detachably installed on the tube plate in the box, which is convenient Cleaning is carried out under the pipe body to remove impurities in the exhaust gas adhered to the surface of the tube body, so as to ensure the efficiency of heat exchange; a traverse block and a traverse plate are set in the tuyere, which can close part of the air outlet or change the aperture of the air outlet, so that according to the cloth The width of the incoming material adjusts the air volume to reduce heat loss.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention;

Fig. 2 is the structural representation of thermal cycle box of the present invention;

Figure 3 is a diagram of the installation method of the heat exchange tube and the left tube plate;

Fig. 4 is a diagram of the first installation method of the heat exchange tube and the right tube sheet;

Fig. 5 is a second installation diagram of the heat exchange tube and the right tube sheet;

Fig. 6 is a structural schematic view between the upper air nozzle, the lower air nozzle and the main air duct;

Fig. 7 is a schematic diagram of the distribution of branch air ducts;

Fig. 8 is a structural schematic diagram 1 of the upper tuyere of the present invention;

Fig. 9 is a structural schematic diagram II of the upper tuyere of the present invention;

Fig. 10 is a structural schematic diagram of the exhaust mechanism.

Detailed ways

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings 1-10.

A sizing machine with exhaust gas waste heat recovery function, comprising a body 1, a thermal cycle box 2, a heating furnace 3, a burner 4, and an exhaust mechanism 5, the exhaust mechanism 5 is respectively connected to the thermal cycle box 2 and the body 1, An air supply pipe 207 is connected between the thermal cycle box 2 and the heating furnace 3, the outlet of the burner 4 communicates with the heating furnace 3, a drying chamber 101 is provided inside the body 1, and a three-way guide is provided at the lower left side of the drying chamber 101. The flow valve 106 is connected to the flange on the right side of the heating furnace 3 with a variable-diameter connecting pipe 301, and the variable-diameter connecting pipe 301 is connected to the flange of the three-way diversion valve 106, and the other two ends of the three-way diversion valve 106 are respectively flange-connected with The air inlet main pipe 108 and the main air duct 107, the three-way diversion valve 106 can adjust the flow direction of the hot air, the bottom of the fuselage 1 is provided with a first air duct 109, a second air duct 110, and a third air duct 111, The length of the first air duct 109, the second air duct 110, and the third air duct 111 increases successively, and the first air duct 109, the second air duct 110, the third air duct 111 left end and the total 107 is connected, the first air duct 109, the second air duct 110, and the third air duct 111 upper right side are provided with fans 112, the first air duct 109, the second air duct 110, the third air duct The position below the fan 112 on the channel 111 is provided with an air outlet, and the hot air enters the branch air channel, and then is blown to various positions of the drying chamber 101 by the fan 112, so as to prevent heat from escaping from the cloth inlet and outlet, and make the drying chamber 101 dry. Maintain a high temperature so that the cloth can be dried immediately when it enters.

Fuselage 1 interior is provided with upper and lower tuyere 102 and down tuyere 103 opposite up and down, is connected with supporting block 126 between the right end of upper tuyere 102 and down tuyere 103 and the right side wall of fuselage 1, and the left side of upper tuyere 102 and down tuyere 103 The air inlet pipe 1021 of the upper air nozzle and the air inlet pipe 1031 of the lower air nozzle are respectively connected. A branch pipe 105 is connected between them, and a deflector 128 is provided at the junction of the branch pipe 105 connected to the air inlet pipe 1031 of the lower air nozzle and the air inlet branch pipe 104. The angle between the deflector 128 and the branch pipe 105 is 45 degrees. Both the upper air nozzle 102 and the lower air nozzle 103 are provided with a support plate 115 inside, and the opposite side of the upper air nozzle 102 and the lower air nozzle 103 is provided with a bottom plate 116, and several air outlet holes 118 are provided on the support plate 115 and the bottom plate 116, and the support plate 115 The position of the air outlet hole 118 on the top corresponds to the position of the air outlet hole 115 on the bottom plate 116. A partition 117 is connected between the support plate 115 and the bottom plate 116, and the space on the right side of the partition 117 is located between the support plate 115 and the bottom plate 116. A traversing block 119 is provided in the cavity, and a chute 120 is provided inside the traversing block 119, and a traversing plate 123 is provided inside the chute 120, and a plurality of first through holes 121 corresponding up and down are provided on the upper and lower sides of the traversing block 119. The moving plate 123 is provided with some second through holes 124, the apertures of the first through hole 121, the second through hole 124 and the air outlet hole 118 are the same. The third through hole 122, the position on the right side of the second through hole 124 on the traverse plate 123 is provided with a fourth through hole 125, the diameter of the second through hole 122 and the fourth through hole 124 are the same and smaller than that of the air outlet hole 118 Aperture, the support block 126 is provided with a first cylinder 127 and a second cylinder 113, the right side of the traverse block 119 is connected with a connecting frame 114, the front end of the piston rod of the first cylinder 127 is connected with the connecting frame 114, the second cylinder 113 The front end of the piston rod is connected with the right end of the traversing plate 123; the first cylinder 127 and the second cylinder 113 respectively control the movement of the traversing block 119 and the traversing plate 123, so that the air outlet 118 is connected to the first through hole 121 and the second through hole. Holes 124 are aligned, or the outlet hole 118 is aligned with the third through hole 122, the fourth through hole 125, or the outlet hole 118 is aligned with the first through hole 121, the second through hole 124, the third through hole 122, the first through hole The four through holes 125 are staggered to adjust the air outlet on the right side of the upper air nozzle 102 and the lower air nozzle 103, and close the air outlet or reduce the air outlet according to the width of the cloth, thereby reducing the emission of redundant hot air and saving heat.

Exhaust mechanism 5 includes several waste gas discharge branch pipes 501, waste gas discharge main pipe 502, and waste gas filter mechanism 503. The left end of the exhaust gas filter mechanism 503 is connected with the exhaust gas filter mechanism 503, the lower part of the exhaust gas filter mechanism 503 is inclined downward, the lower end of the exhaust gas filter mechanism 503 is connected with the drain pipe 504, and the inside of the exhaust gas filter mechanism 503 is provided with a filter screen 505, and the upper end of the exhaust gas filter mechanism 503 is connected with the thermal cycle box 2 Connected, the exhaust gas discharge branch pipe 501 is provided with a valve plate 506, the valve plate 506 is connected with a connecting shaft 507, the right end of the connecting shaft 507 is connected with an adjusting hand wheel 508, and the adjusting hand wheel 508 drives the connecting shaft 507 to rotate, thereby driving the coaxially arranged A number of valve plates 506 rotate to uniformly adjust the flow of exhaust gas in each exhaust gas discharge branch pipe 501, so that the thermal cycle box 2 can fully recover the waste heat of the exhaust gas, and the water in the exhaust gas filter mechanism 503 is discharged from the drain pipe 504, thereby preventing the occurrence of liquid accumulation. .

The thermal cycle box 2 includes a box body 201, the left and right ends of the box body 201 are respectively connected with an air outlet cover 202 and an air inlet cover 203, the right end of the air inlet pipe 207 is connected with the left end of the air outlet cover 202, and the right side of the air inlet cover 203 is provided with The induced draft fan 204, the upper right side of the box body 201 is provided with an exhaust gas discharge port 206, the left tube plate 208 is fixedly connected to the left side inside the box body 201, the right tube plate 209 is installed on the right side inside the box body 201, and the box body 201 is horizontally arranged There are several heat exchange tubes 210, one end of the heat exchange tubes 210 is threadedly connected to the left tube plate 208, and the other end is detachably connected to the right tube plate 209. There are several baffles 211 inside the box body 201, and the baffles 211 The setting of the exhaust gas makes the exhaust gas advance in a serpentine shape in the thermal cycle box 2, increases the contact time and area with the heat exchange tube 210, and improves the efficiency of heat exchange.

In one way of installing the heat exchange tube 210 and the right tube plate 209, the right tube plate 209 is provided with a circular hole with a diameter larger than that of the heat exchange tube 210, and the part inserted into the circular hole on the right side of the heat exchange tube 210 is provided with an external thread , the inner circle of the round hole is provided with external threads, the first fixing sleeve 213 is arranged between the round hole and the heat exchange tube 210, the inner and outer sides of the first fixing sleeve 213 are provided with internal threads, and the outer side of the first fixing sleeve 213 The internal thread is screwed to the external thread of the inner ring of the round hole, the internal thread on the inside of the first fixing sleeve 213 is screwed to the external thread on the heat exchange tube 210, and the first fixing ring 212 is connected to the right side of the first fixing sleeve 213 , the diameter of the first fixing ring 212 is larger than the diameter of the circular hole.

In another installation method of the heat exchange tube 210 and the right tube plate 209, the right tube plate 209 is provided with a round hole with a diameter larger than that of the heat exchange tube 210, and a second fixing sleeve is provided between the round hole and the heat exchange tube 210. cylinder 215, the diameter of the second fixing sleeve 215 is smaller than the diameter of the round hole, the inner side of the second fixing sleeve 215 is provided with a rubber ring 216, the inner side of the rubber ring 216 fits the heat exchange tube 210, and the outer side of the second fixing sleeve 215 A number of elastic pieces 205 are provided, and a second fixing ring 219 is connected to the right side of the second fixing sleeve 215, and the diameter of the second fixing ring 219 is larger than the diameter of the circular hole.

The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (5)

1. a kind of forming machine with waste gas residual heat recycling function, it is characterised in that: including fuselage, heat circulation box, heating furnace, combustion Burner, exhaust gear, the exhaust gear are connected to heat circulation box and fuselage respectively, are connected between the heat circulation box and heating furnace It is connected to air duct, the outlet of the burner is connected to heating furnace, and the fuselage interior is equipped with drying cavity, the drying cavity left side Lower part is equipped with three-way flow guide valve, and the heating furnace right flange is connected with reducing connecting tube, the reducing connecting tube and three admittances Valve flanged joint is flowed, flanged joint has air inlet general pipeline and total air duct, the fuselage respectively at the other both ends of the three-way flow guide valve Bottom is equipped with the first branch air duct, the second branch air duct, third branch air duct, first branch air duct, the second branch air duct, third branch air duct Length successively increase, first branch air duct, the second branch air duct, third branch air duct left end are connected to total air duct, described first Branch air duct, the second branch air duct, third branch air duct upper right are equipped with fan, first branch air duct, the second branch air duct, third It is located at the position below fan on branch air duct and offers air outlet, the fuselage interior is equipped with upper tuyere opposite to each other up and down and leeward Mouth is connected with supporting block, the upper tuyere and lower tuyere left side between the upper tuyere and lower tuyere right end and fuselage right side wall It is connected separately with tuyere blast pipe and lower tuyere blast pipe, the air inlet general pipeline upper flange is connected with winding pipe, described Be connected with and be in charge of between winding pipe and upper tuyere blast pipe, lower tuyere blast pipe, be connected with lower tuyere blast pipe described in point The junction of pipe and winding pipe is equipped with deflector, and the deflector and the angle between being in charge of are 45 degree, the windward It is equipped with support plate inside mouth and lower tuyere, the upper tuyere and the opposite side of lower tuyere are equipped with bottom plate, the support plate With offer several exhaust vents on bottom plate, above and below the position of the exhaust vent on the position and bottom plate of the exhaust vent in the support plate It is corresponding, it is connected with partition between the support plate and bottom plate, is located in the cavity on partition right side between the support plate and bottom plate Equipped with traversing piece, the traversing piece of inside offers sliding slot, is equipped with traversing plate inside the sliding slot, the traversing piece of upper and lower sides are opened Equipped with several corresponding first through hole up and down, several second through-holes are offered on the traversing plate, the first through hole, second are led to Hole, the aperture of exhaust vent are identical, and the described traversing piece upper position on the right side of first through hole offers third through-hole, described traversing It is located at the position on the right side of the second through-hole on plate and offers fourth hole, second through-hole is identical and small with the aperture of fourth hole In the aperture of exhaust vent, the first cylinder and the second cylinder are equipped in the supporting block, the traversing piece of right side is connected with connection frame, The piston rod front end of first cylinder is connected with connection frame, the piston rod front end of second cylinder and traversing plate right end phase Connection；

The exhaust gear includes several exhaust gas bleeders, exhaust gas discharge manifold, exhaust gas filter mechanism, several exhaust gas rows It puts branch pipe to be connected to drying cavity, the exhaust gas bleeder other end is connected to exhaust gas discharge manifold, the exhaust gas discharge manifold Left end be connected with exhaust gas filter mechanism, exhaust gas filter mechanism lower part tilts down, exhaust gas filter mechanism lower end connect It is connected to drainpipe, is equipped with filter screen inside the exhaust gas filter mechanism, exhaust gas filter mechanism upper end is connected to heat circulation box, It is equipped with valve plate inside the exhaust gas bleeder, is connected with connecting shaft on the valve plate, the connecting shaft right end is connected with adjusting Handwheel.

2. a kind of forming machine with waste gas residual heat recycling function according to claim 1, it is characterised in that: the heat is followed Ring case includes case body, and case body left and right ends are connected separately with outlet housing and air intake cover, the blast pipe right end and outlet housing Left end is connected, and air-introduced machine is equipped on the right side of the air intake cover, is equipped with Waste gas outlet on the right side of the case body, in the case body Left tube sheet is fixedly connected on the left of portion, the case body inner right side is equipped with right tube plate, and being horizontally disposed in the case body has several change Heat pipe, described heat exchanger tube one end are threadedly coupled with left tube sheet, are used and are detachably connected between the other end and right tube plate, described Several baffle plates are equipped in case body.

3. a kind of forming machine with waste gas residual heat recycling function according to claim 2, it is characterised in that: the right pipe Plate is equipped with the circular hole that aperture is greater than heat exchanger tube diameter, and the part on the right side of the heat exchanger tube in insertion circular hole is equipped with external screw thread, institute Circular hole inner ring is stated equipped with external screw thread, is equipped with the first fixes sleeve between the circular hole and heat exchanger tube, in first fixes sleeve Outside is equipped with internal screw thread, the external thread bolt connection of the internal screw thread on the outside of first fixes sleeve and circular hole inner ring, and described first The external thread bolt connection on internal screw thread and heat exchanger tube on the inside of fixes sleeve, it is fixed that the first fixes sleeve right side is connected with first Ring, the diameter of first fixed ring are greater than the aperture of circular hole.

4. a kind of forming machine with waste gas residual heat recycling function according to claim 2, it is characterised in that: the right pipe Plate is equipped with the circular hole that aperture is greater than heat exchanger tube diameter, is equipped with the second fixes sleeve between the circular hole and heat exchanger tube, and described the The diameter of two fixes sleeves is less than the aperture of circular hole, and rubber ring, the rubber ring inside are equipped on the inside of second fixes sleeve It fits with heat exchanger tube, several elastic slices is equipped on the outside of second fixes sleeve, the is connected on the right side of second fixes sleeve Two fixed rings, the diameter of second fixed ring are greater than the aperture of circular hole.

5. a kind of forming machine with waste gas residual heat recycling function according to claim 1, it is characterised in that: the heating Furnace is equipped with thermometer.