Tail gas waste heat recovery system for steam ironing station

Abstract

This utility model discloses a waste heat recovery and utilization system for steam ironing tables, including a boiler that provides steam to the irons on the steam ironing table and a water tank for replenishing water to the boiler. The system is characterized by: a waste heat storage tank; the waste heat outlet of the irons is connected to the waste heat storage tank via a waste heat recovery pipe for sending waste heat into the storage tank; the waste heat storage tank is connected to the water tank via an air vent pipe for venting air from the waste heat storage tank to the water tank when waste heat enters; both the waste heat recovery pipe and the air vent pipe are equipped with solenoid valves; the water tank is connected to the waste heat storage tank via a first water replenishment pipe, and the waste heat storage tank is connected to the boiler via a second water replenishment pipe; a water pump is installed on the first water replenishment pipe; when the boiler needs water replenishment, the solenoid valves close, and water from the water tank is pumped into the waste heat storage tank and mixed with the waste heat in the storage tank before being fed into the boiler. This utility model features high recycling rate and is safe and reliable.

Description

Technical Field

[0001] This utility model mainly relates to the field of steam ironing tables, and in particular to the recovery and utilization of exhaust gas from steam ironing tables. Background Technology

[0002] Steam ironing boards are common equipment in the garment industry for ironing clothes. Their working principle involves generating high-temperature steam through a steam generator, which is then fed into the iron to iron the garments. The exhaust gas from the iron is also steam and contains a significant amount of residual heat. If this exhaust gas is not effectively recovered and utilized, it results in energy waste. Currently, some systems use traditional heat exchangers to recover heat energy. These heat exchangers have copper pipes inside, through which the exhaust gas is fed and finally into a water tank. When the water tank replenishes the boiler, the water flows through the outside of the copper pipes, exchanging heat with the exhaust gas inside, thus recovering heat energy. However, this recovery device has the following drawbacks: 1. Heat exchange through copper pipes results in a low heat absorption rate and low recovery rate. The exhaust gas temperature remains high after heat exchange, and when it flows into the water tank, it can easily cause the water to boil, posing a safety hazard and potentially damaging the equipment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a waste heat recovery and utilization system for steam ironing tables that has a high recycling rate and is safe and reliable, in order to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A waste heat recovery system for steam ironing tables includes a boiler that provides steam to the irons on the steam ironing table and a water tank for replenishing water to the boiler. It also includes a waste heat storage tank. The waste heat outlet of the irons is connected to the waste heat storage tank via a waste heat recovery pipe for sending waste heat into the storage tank. The waste heat storage tank is connected to the water tank via an air vent pipe for venting air from the waste heat storage tank to the water tank when waste heat enters it. Both the waste heat recovery pipe and the air vent pipe are equipped with solenoid valves. The water tank is connected to the waste heat storage tank via a first water replenishment pipe, and the waste heat storage tank is connected to the boiler via a second water replenishment pipe. A water pump is installed on the first water replenishment pipe. When the boiler needs water replenishment, the solenoid valves close, and water from the water tank is pumped into the waste heat storage tank and mixed with the waste heat in the storage tank before being fed into the boiler.

[0006] As a further improvement of this utility model, the table heating pipe of the steam ironing board is connected to the middle of the exhaust gas recovery pipe, so that the exhaust gas of the exhaust gas recovery pipe flows through the inside of the table heating pipe.

[0007] As a further improvement of this utility model, a one-way valve is provided on the first water supply pipe and the second water supply pipe.

[0008] As a further improvement of this utility model, the exhaust gas recovery pipe and the exhaust air pipe are connected to the upper part of the exhaust gas storage tank, and the first water supply pipe and the second water supply pipe are connected to the lower part of the exhaust gas storage tank.

[0009] Compared with the prior art, the advantages of this utility model are as follows: This utility model stores the exhaust gas in an exhaust gas storage tank, and when adding water, water first enters the exhaust gas storage tank, mixes with the exhaust gas in the storage tank, absorbs the heat energy of the exhaust gas, and then sends it into the boiler together, thereby realizing the recovery of the exhaust gas heat energy. This recovery method does not require copper pipes as an intermediate medium. Water directly contacts the exhaust gas to absorb the heat energy of the exhaust gas and then sends it into the boiler together. The heat energy absorption rate is high, the recovery and utilization rate is high, and it is safe and reliable. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure reference numerals: Boiler 1; Water tank 2; Exhaust gas storage tank 3; Iron 4; Steam inlet 41; Exhaust gas outlet 42; Tabletop heating pipe 5; Exhaust gas recovery pipe 6; Air exhaust pipe 7; Solenoid valve 8; First water supply pipe 9; Second water supply pipe 10; Water pump 11; Check valve 12. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the protection scope of the present invention is not limited to the following embodiments. Any improvements and modifications made to the present invention without departing from the principle of the present invention shall be considered within the protection scope of the present invention.

[0013] like Figure 1As shown, the waste heat recovery system for a steam ironing table of this invention includes a boiler 1, a water tank 2, and a waste heat storage tank 3. The boiler 1 provides steam to the ironing pad 4 of the steam ironing table, and the water tank 2 replenishes water to the boiler 1. The boiler 1 is connected to the steam inlet 41 of the ironing pad 4 via a pipe. The waste heat outlet 42 of the ironing pad 4 is connected to the waste heat storage tank 3 via a waste heat recovery pipe 6, which is used to send the waste heat into the waste heat storage tank 3. The waste heat storage tank 3 is connected to the water tank 2 via an air vent pipe 7, which is used to vent the air in the waste heat storage tank 3 to the water tank 2 when the waste heat enters the waste heat storage tank 3, so as to maintain the pressure balance in the waste heat storage tank 3. Both the waste heat recovery pipe 6 and the air vent pipe 7 are equipped with solenoid valves 8, which are normally in the open state. The water tank 2 is connected to the waste heat storage tank 3 via a first water replenishment pipe 9, and the waste heat storage tank 3 is connected to the boiler 1 via a second water replenishment pipe 10. A water pump 11 is installed on the first water replenishment pipe 9. When boiler 1 needs to be replenished with water, the solenoid valve 8 is closed, and the water in water tank 2 is sent to exhaust gas storage tank 3 by water pump 11. The water mixes with the exhaust gas in exhaust gas storage tank 3, absorbs the heat energy of the exhaust gas, and is then sent to boiler 1 together, thereby realizing the recovery of exhaust gas heat energy.

[0014] Preferably, the heating element 5 of the steam ironing board is connected to the middle of the exhaust gas recovery pipe 6, so that the exhaust gas from the exhaust gas recovery pipe 6 flows through the interior of the heating element 5 to heat it. The heating element 5 is used to preheat the surface of the steam ironing board and keep it dry. Using exhaust gas to heat the heating element 5 can replace the traditional electric heating method, further saving energy and electricity.

[0015] Preferably, the first water supply pipe 9 and the second water supply pipe 10 are equipped with a one-way valve 12 to prevent water backflow.

[0016] Preferably, the exhaust gas recovery pipe 6 and the exhaust air pipe 7 are connected to the upper part of the exhaust gas storage tank 3, and the first water supply pipe 9 and the second water supply pipe 10 are connected to the lower part of the exhaust gas storage tank 3.

[0017] Working principle and process: When the steam ironing board is working, the solenoid valve 8 remains open. The exhaust gas from the iron 4 is sent to the exhaust gas storage tank 3 through the exhaust gas recovery pipe 6. The air in the exhaust gas storage tank 3 is discharged to the water tank 2 through the air exhaust pipe 7, maintaining the internal pressure balance of the exhaust gas storage tank 3. When the boiler 1 needs to be replenished with water, the solenoid valve 8 is closed and the water pump 11 is started. The water in the water tank 2 is sent to the exhaust gas storage tank 3 through the first water replenishment pipe 9 under the action of the water pump 11. It mixes with the exhaust gas in the exhaust gas storage tank 3, absorbs the heat energy of the exhaust gas, and is then sent to the boiler 1 through the second water replenishment pipe 10. After the water replenishment is completed, the water pump 11 is closed. First, the solenoid valve 8 on the air exhaust pipe 7 is opened to release pressure, and then the solenoid valve 8 on the exhaust gas recovery pipe 6 is opened. The exhaust gas from the iron 4 continues to be sent to the exhaust gas storage tank 3 through the exhaust gas recovery pipe 6, and so on.

Claims

1. A tail gas waste heat recovery system for a steam press, comprising a boiler for providing steam to a steamer of the steam press and a water tank for replenishing water to the boiler, characterized in that: It also includes an exhaust gas storage tank. The exhaust gas outlet of the iron is connected to the exhaust gas storage tank through an exhaust gas recovery pipe for sending exhaust gas into the exhaust gas storage tank. The exhaust gas storage tank is connected to the water tank through an air vent pipe for venting air from the exhaust gas storage tank to the water tank when the exhaust gas enters the exhaust gas storage tank. Both the exhaust gas recovery pipe and the air vent pipe are equipped with solenoid valves. The water tank is connected to the exhaust gas storage tank through a first water supply pipe, and the exhaust gas storage tank is connected to the boiler through a second water supply pipe. The first water supply pipe is equipped with a water pump. When the boiler needs water replenishment, the solenoid valve is closed, and the water in the water tank is sent into the exhaust gas storage tank by the water pump, and mixed with the exhaust gas in the exhaust gas storage tank before being sent into the boiler.

2. The exhaust heat recovery system for a steam press according to claim 1, wherein: The heating element of the steam ironing table is connected to the middle of the exhaust gas recovery pipe, so that the exhaust gas from the exhaust gas recovery pipe flows through the inside of the heating element.

3. The tail gas waste heat recovery system for a steam press according to claim 1 or 2, wherein: One-way valves are installed on the first and second water supply pipes.

4. The tail gas waste heat recovery system for a steam press according to claim 1 or 2, wherein: The exhaust gas recovery pipe and the exhaust air pipe are connected to the upper part of the exhaust gas storage tank, and the first water supply pipe and the second water supply pipe are connected to the lower part of the exhaust gas storage tank.

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