Boiler shoe steaming machine with double-insurance anti-explosion structure

Abstract

The utility model discloses a boiler shoe steaming machine with a double-insurance explosion-proof structure, the top of a boiler is provided with the double-insurance explosion-proof structure, the double-insurance explosion-proof structure comprises a safety valve and an internal pressure regulation and control electromagnetic valve, the safety valve and the internal pressure regulation and control electromagnetic valve are respectively and fixedly arranged at the top of the boiler and are connected with an inner cavity of the boiler, the safety valve has fixed take-off pressure P1; a pressure sensor is further arranged at the top of the boiler and used for collecting the hearth pressure P2 of the boiler in real time, and when the boiler operates normally, the hearth pressure P2 is smaller than the take-off pressure P1; the pressure sensor and the internal pressure regulation and control electromagnetic valve are electrically connected with the control device, and the control device is electrically connected with the variable-frequency controller. Compared with the prior art, the double-insurance anti-explosion of the electromagnetic valve and the safety valve is realized, and the safety of the whole machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to shoemaking equipment technical field especially a kind of boiler shoe steamer with double insurance explosion-proof structure. BACKGROUND

[0002] Shoe steamer is an important link in shoemaking production line, the heat and humidity of steam can restore the elasticity of shoe material, achieve the effect of removing wrinkle and ironing, make shoe surface more flat;In addition, high-temperature steam generated by shoe steamer can soften leather and other shoe materials, make it easier to shape and mold, ensure that shoe final molding meets design requirements.

[0003] Boiler mechanism is commonly used in shoe steamer Reaction Kettle, for making water liquid inside boiler rapidly heated into high-temperature steam, to output to steam pipe on both sides of shoe steamer, realize shoe material steaming. But, now boiler mechanism in shoe steamer has shortcomings, temperature control is difficult, unstable;Single safety structure, overpressure protection in furnace is carried out through single safety valve, there is great security risk. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a boiler shoe steamer with double insurance explosion-proof structure, which provides double safety protection for the boiler structure inside the shoe steamer and improves the safety of the whole machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a boiler shoe steamer with double insurance explosion-proof structure, which comprises a control device, a rack, a frequency converter, a water storage tank, a boiler and a steaming assembly. The water storage tank, the boiler and the steaming assembly are sequentially connected and fixedly installed on the rack. The frequency converter is electrically connected to the boiler. The top of the boiler is provided with a double insurance explosion-proof structure, which comprises a safety valve and an internal pressure control solenoid valve. The safety valve and the internal pressure control solenoid valve are fixedly installed on the top of the boiler and connected to the inner cavity of the boiler. The safety valve has a fixed take-off pressure P1. The top of the boiler is also provided with a pressure sensor for real-time acquisition of the furnace pressure P2 of the boiler. When the boiler is normally running, the furnace pressure P2 is less than the take-off pressure P1. The pressure sensor and the internal pressure control solenoid valve are electrically connected to the control device, and the control device is electrically connected to the frequency converter.

[0006] In a further technical scheme, the top of the boiler is provided with five outlet pipes penetrating inside and outside. The safety valve, the pressure sensor and the internal pressure control solenoid valve are installed in the corresponding outlet pipes. The other two outlet pipes are respectively provided with a pressure relief valve and a three-way joint. The pressure relief valve has an adjustable opening pressure P3. When the boiler is normally running, the opening pressure P3 is less than the take-off pressure P1.

[0007] In a further technical solution, the upper middle part of the outer wall of the boiler is coated with an upper thermal insulation layer, the thickness of the upper thermal insulation layer is 50mm-100mm; the lower middle part of the outer wall of the boiler is provided with a heating area, the outside of the heating area is coated with a lower thermal insulation layer, the thickness of the lower thermal insulation layer is 20mm-70mm, and the outside of the lower thermal insulation layer is wound with an electromagnetic induction coil; the upper thermal insulation layer and the lower thermal insulation layer respectively comprise rock wool, aluminum silicate, polyurethane foam or perlite.

[0008] In a further technical solution, the bottom of the boiler is provided with a water inlet, and a flange plate is welded at the water inlet; a flange joint is installed on the flange plate, and a high-temperature-resistant sealing ring is arranged between the flange joint and the flange plate, wherein the bottom of the flange joint is connected with a water inlet pipe, one end of the water inlet pipe is provided with a drainage part, the other end is provided with a water supply part, and the drainage part is installed with an on-off valve; the water supply part comprises a water inlet joint one and a water inlet joint two, the water inlet joint one is connected to a water storage tank, and a water pump device is further arranged between the water storage tank and the water inlet joint one.

[0009] In a further technical solution, one side of the rack is also provided with a recovery water tank, the recovery water tank is connected with the drainage part and the water inlet joint two respectively, and another water pump device is arranged between the recovery water tank and the water inlet joint two.

[0010] In a further technical solution, the two sides of the boiler are respectively provided with a steam manifold, the steam manifold is arranged horizontally, the upper side of the steam manifold is provided with a steam input connector, and the steam input connector is connected with a three-way joint; the lower side of the steam manifold is provided with a condensate output connector, the condensate output connector is provided with another on-off valve and is connected with the recovery water tank.

[0011] In a further technical solution, a plurality of steam output branch pipes are arranged at intervals between the steam manifolds, and each steam output branch pipe is provided with a steam output electromagnetic valve; the two sides of the boiler shoe steaming machine are respectively provided with a steam wetting assembly, the steam wetting assembly comprises a steam wetting workbench and a plurality of steam pipes, each steam pipe is connected to the steam output branch pipe of the steam manifold on the corresponding side, and the steam output is independently controlled by the corresponding steam output electromagnetic valve; the workbench is provided with corresponding button switches at positions corresponding to each steam pipe, and each button switch is electrically connected with each steam output electromagnetic valve.

[0012] In a further technical solution, the boiler is also provided with a temperature sensor, and the temperature sensor is electrically connected with the control device.

[0013] In a further technical solution, a fixed frame is arranged at the center position of the rack, a fixed plate is arranged at the top of the boiler fixing frame, and the boiler is installed on the fixed plate; a support leg is arranged on each side of the rack, so that the boiler shoe steaming machine can be placed horizontally on the shoemaking line.

[0014] In further technical solutions, the outer machine shell is arranged on the rack, the inner part of the outer machine shell forms a component space, the boiler is arranged in the component space, and the component space is provided with a temperature switch; the top of the outer machine shell is provided with a heat dissipation fan, and the heat dissipation fan is electrically connected with the temperature switch.

[0015] Compared with the prior art, the boiler steam shoe machine with double safety explosion-proof structure has the advantages that: the mechanical safety valve and the inner pressure electric control structure composed of the pressure sensor and the inner pressure regulating electromagnetic valve are combined to form a double safety explosion-proof structure, and the high-pressure boiler is double-protected; the inner pressure is regulated, the inner pressure regulating electromagnetic valve and the frequency converter cooperate to work, normal steam output is ensured, the inner pressure of the boiler is controlled at a relatively safe working pressure value, and the safety of the boiler device is further improved; the boiler is further provided with a pressure relief valve, which provides an additional pressure relief channel for the boiler, provides an additional mechanical pressure relief valve for the high-pressure boiler, further improves the explosion-proof performance of the boiler device; the steam pipeline is provided with a condensate water recovery structure, which can avoid condensate water from being blocked in the pipeline, further avoids the violent rise of the inner pressure of the boiler due to pipeline blockage, and further reduces the probability of cylinder explosion during the operation of the boiler; the boiler is further provided with a temperature sensor for temperature detection of the boiler, over-temperature loss of control is avoided, and the explosion-proof performance of the steam shoe machine is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further explained in connection with the drawings and examples.

[0017] Fig. 1 It is the structural schematic diagram of the utility model.

[0018] Fig. 2 It is the side view of the utility model.

[0019] Fig. 3 It is the structural schematic diagram of the boiler in the utility model. DETAILED DESCRIPTION

[0020] The following is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model.

[0021] As Figs. 1 to 3As shown, a boiler steam shoe machine with double insurance explosion-proof structure, including control device, rack (1), frequency conversion controller, water storage tank (9), boiler (2) and steam wet assembly, water storage tank (9), boiler (2) and steam wet assembly are sequentially connected and are fixedly installed on rack (1), frequency conversion controller is electrically connected to boiler (2), the top of boiler (2) is provided with double insurance explosion-proof structure, double insurance explosion-proof structure includes safety valve (33) and inner pressure control solenoid valve (32), safety valve (33) and inner pressure control solenoid valve (32) are fixedly installed on the top of boiler (2) and are connected to the inner cavity of boiler (2), wherein, safety valve (33) has fixed take-off pressure P1;The top of boiler (2) is also provided with pressure sensor (31), for real-time acquisition of boiler (2) hearth pressure P2, when boiler (2) is normal operation, hearth pressure P2 is less than take-off pressure P1;Pressure sensor (31) and inner pressure control solenoid valve (32) are electrically connected to control device, control device is electrically connected to frequency conversion controller.

[0022] The presettable electronic pressure relief structure composed of pressure sensor 31 and inner pressure control solenoid valve 32 can control the inner pressure of boiler 2, and then adjust the heating power of the boiler through the frequency conversion controller, to ensure normal steam output, and control the inner pressure of boiler 2 at a relatively safe working pressure value, further improving the safety of the boiler device.

[0023] The working principle of the double insurance explosion-proof structure of the boiler steam shoe machine in the embodiment is as follows:

[0024] 1、The worker sets a working hearth pressure P in advance through the control device;Start the boiler steam shoe machine, acquire the hearth pressure P2 through the pressure sensor (31) and transmit it to the control device;When the hearth pressure P2 rises to the preset working hearth pressure P, the control device sends an open door signal to the inner pressure control solenoid valve (32) to control the inner pressure control solenoid valve (32) to open the pressure relief, realizing the first electronic pressure relief protection.

[0025] 2、When the hearth pressure P2 rises to the preset working hearth pressure P, the control device sends a frequency reduction signal to the frequency conversion controller to control the operating power of the boiler (2) through the frequency conversion controller, realizing the frequency conversion operation of the boiler.

[0026] 3、When the hearth pressure P2 rises to the opening pressure P3 of the pressure relief valve 34, the pressure relief valve 34 opens the pressure relief immediately, realizing the second mechanical pressure relief protection.

[0027] 4、When the hearth pressure P2 rises to the take-off pressure P1 of the safety valve (33), the safety valve (33) opens the pressure relief immediately, realizing the third mechanical pressure relief protection.

[0028] The double insurance explosion-proof structure composed of the electronic pressure relief structure and the mechanical safety valve 33 provides two pressure relief channels and two pressure relief thresholds for the boiler 2, and constitutes a double insurance explosion-proof structure, which provides double protection for the high-pressure operating boiler 2 and further improves the explosion-proof performance of the boiler 2.

[0029] Specifically, the top of the boiler 2 is respectively provided with five inner-outer through outlet pipes, the safety valve 33, the pressure sensor 31 and the inner pressure control electromagnetic valve 32 are respectively installed in the corresponding outlet pipes, and the other two outlet pipes are respectively provided with the pressure relief valve 34 and the three-way joint 35. The pressure relief valve 34 has an adjustable opening pressure P3, and the opening pressure P3 is less than the take-off pressure P1 when the boiler 2 is normally operated. The boiler 2 is provided with one more mechanical pressure relief valve for safety protection, and the explosion-proof performance of the boiler device is further improved.

[0030] Specifically, the upper part of the outer wall of the boiler 2 is covered with an upper thermal insulation layer 22, and the thickness of the upper thermal insulation layer 22 is 80 mm; the middle lower part of the outer wall of the boiler 2 is provided with a heating area, and the outside of the heating area is covered with a lower thermal insulation layer, and the thickness of the lower thermal insulation layer is 50 mm; the outside of the lower thermal insulation layer is wound with an electromagnetic induction coil 21; the upper thermal insulation layer 22 and the lower thermal insulation layer are respectively polyurethane foam.

[0031] Specifically, the bottom of the boiler 2 is provided with a water inlet, and the water inlet is welded with a flange plate; the flange plate is installed with a flange joint 204, and a high-temperature-resistant sealing ring is arranged between the flange joint 204 and the flange plate, wherein the bottom of the flange joint 204 is connected with a water inlet pipe 20, one end of the water inlet pipe 20 is provided with a drainage part 203, and the other end is provided with a water supply part, and the drainage part 203 is installed with an on-off valve; the water supply part includes a water inlet joint one 201 and a water inlet joint two 202, the water inlet joint one 201 is connected to a water storage tank 9, and a water pump device 91 is further arranged between the water storage tank 9 and the water inlet joint one 201. The water inlet connecting structure composed of the flange plate has excellent structural strength, can adapt to the high working pressure of the boiler 2, and avoids accidental fracture and explosion.

[0032] Specifically, one side of the rack 1 is also provided with a recovery water tank 8, the recovery water tank 8 is connected to the drainage part 203 and the water inlet joint two 202 respectively, and another water pump device 91 is arranged between the recovery water tank 8 and the water inlet joint two 202; both sides of the boiler 2 are respectively provided with a steam manifold 4, the steam manifold 4 is arranged horizontally, the upper side of the steam manifold 4 is provided with a steam input connection pipe 41, and the steam input connection pipe 41 is connected to the three-way joint 35; the lower side of the steam manifold 4 is provided with a condensed water output connection pipe 42, the condensed water output connection pipe 42 is provided with another on-off valve and is connected to the recovery water tank 8. The steam pipeline is provided with a condensed water recovery structure, which can avoid condensed water from being blocked in the pipeline, further avoid the internal pressure of the boiler 2 from rising due to pipeline blockage, and further reduce the probability of explosion of the boiler 2 during operation.

[0033] Specifically, the steam manifold 4 is spaced apart from a plurality of steam output branch pipes, each of which is provided with a steam output electromagnetic valve 43; the two sides of the boiler 2 are respectively provided with a steam and wet assembly, which comprises a steam and wet workbench 5 and a plurality of steam pipes 51, each of which is respectively connected to the steam output branch pipe of the steam manifold 4 on the corresponding side, and the steam output is independently controlled by the corresponding steam output electromagnetic valve 43; the positions of the workbench corresponding to each steam pipe 51 are respectively provided with corresponding button switches, and each button switch is respectively electrically connected with each steam output electromagnetic valve 43.

[0034] Specifically, the boiler 2 is also provided with a temperature sensor, which is electrically connected to the control device. The boiler 2 is also provided with a temperature sensor for temperature detection, which can avoid over-temperature loss of control and further improve the explosion-proof performance of the steam shoe machine. The working principle is that the worker sets a working temperature T1 in advance through the control device, when the temperature T2 in the borehole detected by the temperature sensor rises to the working temperature T1, the control device sends a frequency reduction signal to the frequency converter controller to control the reduction of the operating power of the boiler (2) through the frequency converter controller, and realizes the frequency conversion operation of the boiler.

[0035] Specifically, the center position of the rack 1 is provided with a fixing frame 12, the top of the fixing frame 12 is provided with a fixing plate 121, and the boiler 2 is installed on the fixing plate 121; the two sides of the rack 1 are respectively provided with a support foot 11, so that the boiler 2 steam shoe machine can be placed on the shoemaking line.

[0036] Specifically, it also includes an outer shell, which surrounds the installation of the rack 1, and the inner part of the outer shell forms an assembly space, the boiler 2 is arranged in the inner part of the assembly space, and the assembly space is provided with a temperature switch; the top of the outer shell is provided with a cooling fan, and the cooling fan is electrically connected with the temperature switch.

[0037] The above is only a preferred embodiment of the present application, and for those skilled in the art, according to the idea of the present application, the specific implementation and application range can be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A boiler-fired shoe steamer with a double-safety explosion-proof structure, comprising a control device, a frame (1), a frequency converter, a water tank (9), a boiler (2), and a steaming and humidifying assembly, wherein the water tank (9), the boiler (2), and the steaming and humidifying assembly are sequentially pipe-connected and respectively fixedly installed on the frame (1), and the frequency converter is electrically connected to the boiler (2), characterized in that: The top of the boiler (2) is equipped with a double-insurance explosion-proof structure, which includes a safety valve (33) and an internal pressure regulating solenoid valve (32). The safety valve (33) and the internal pressure regulating solenoid valve (32) are fixedly installed on the top of the boiler (2) and connected to the inner cavity of the boiler (2). The safety valve (33) has a fixed starting pressure P1. The top of the boiler (2) is also equipped with a pressure sensor (31) for real-time acquisition of the furnace pressure P2 of the boiler (2). When the boiler (2) is running normally, the furnace pressure P2 is less than the starting pressure P1. The pressure sensor (31) and the internal pressure regulating solenoid valve (32) are electrically connected to the control device, and the control device is electrically connected to the frequency converter.

2. The boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 1, characterized in that: The top of the boiler (2) is provided with five through outlet pipes. The safety valve (33), the pressure sensor (31) and the internal pressure regulating solenoid valve (32) are respectively installed on the corresponding outlet pipes. The other two outlet pipes are respectively equipped with pressure relief valves (34) and three-way connectors (35). The pressure relief valve (34) has an adjustable opening pressure P3. When the boiler (2) is running normally, the opening pressure P3 is less than the starting pressure P1.

3. A boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 2, characterized in that: The upper part of the outer wall of the boiler (2) is covered with an upper heat insulation layer (22), the thickness of which is 50mm to 100mm; the lower part of the outer wall of the boiler (2) is provided with a heating zone, the heating zone is covered with a lower heat insulation layer, the thickness of which is 20mm to 70mm, and an electromagnetic induction coil (21) is wound around the outside of the lower heat insulation layer; the upper heat insulation layer (22) and the lower heat insulation layer respectively include rock wool, aluminum silicate, polyurethane foam or perlite.

4. A boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 3, characterized in that: The boiler (2) is provided with a water inlet at the bottom, and a flange is welded to the water inlet; a flange joint (204) is installed on the flange, and a high-temperature resistant sealing ring is provided between the flange joint (204) and the flange. The flange joint (204) is connected to a water inlet pipe (20) at its bottom. One end of the water inlet pipe (20) is provided with a drain section (203) and the other end is provided with a water supply section. The drain section (203) is equipped with a switch valve. The water supply section includes a water inlet connector one (201) and a water inlet connector two (202). The water inlet connector one (201) is connected to the water storage tank (9). A water pump device (91) is also provided between the water storage tank (9) and the water inlet connector one (201).

5. A boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 4, characterized in that: A water recovery tank (8) is also provided on one side of the frame (1). The water recovery tank (8) is connected to the drainage section (203) and the water inlet connector (202). Another water pump device (91) is provided between the water recovery tank (8) and the water inlet connector (202).

6. A boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 5, characterized in that: A steam manifold (4) is provided on each side of the boiler (2). The steam manifold (4) is horizontally arranged. A steam input pipe (41) is provided on the upper side of the steam manifold (4). The steam input pipe (41) is connected to the tee connector (35). A condensate output pipe (42) is provided on the lower side of the steam manifold (4). The condensate output pipe (42) is provided with another switch valve and is connected to the recovery water tank (8).

7. A boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 6, characterized in that: The steam manifold (4) is provided with multiple steam output branches at intervals, and each steam output branch is provided with a steam output solenoid valve (43); the boiler (2) is provided with a steaming and humidifying assembly on both sides of the shoe steamer. The steaming and humidifying assembly includes a steaming and humidifying workbench (5) and multiple steam pipes (51). Each steam pipe (51) is connected to the steam output branch of the steam manifold (4) on the corresponding side, and the steam output is independently controlled by the corresponding steam output solenoid valve (43); the workbench is provided with corresponding push-button switches corresponding to the positions of each steam pipe (51), and each push-button switch is electrically connected to the corresponding steam output solenoid valve (43).

8. A boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 1, characterized in that: The boiler (2) is also equipped with a temperature sensor, which is electrically connected to the control device.

9. A boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 1, characterized in that: A fixed frame (12) is provided at the center of the frame (1), and a fixed plate (121) is provided on the top of the fixed frame (12) of the boiler (2). The boiler (2) is installed on the fixed plate (121). A support foot (11) is provided on each side of the frame (1) so that the boiler (2) can be placed across the shoe-making line.

10. A boiler-fired shoe steamer with a double-safety explosion-proof structure according to claim 1, characterized in that: It also includes an outer casing, which surrounds and is installed on the frame (1). The interior of the outer casing forms a component space, and the boiler (2) is located inside the component space. The component space is equipped with a temperature switch. The top of the outer casing is equipped with a cooling fan, which is electrically connected to the temperature switch.

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