Textile gas setting machine configured with oxygen-enriched humidity control energy-saving system

Abstract

The present application relates to a kind of textile gas setting machine of configuration oxygen-rich control wet energy-saving system, the oxygen-rich control wet energy-saving system, including: oxygen-rich oxygen generator, with the one-to-one correspondence setting of gas burner on the textile gas setting machine, for generating oxygen-enriched air;Three-way bypass and bypass valve, with the one-to-one correspondence setting of gas burner, one end is communicated the oxygen-enriched air outlet of oxygen-rich oxygen generator, the other end is communicated the pipeline between corresponding gas burner and gas access solenoid valve on textile gas setting machine;High-temperature humidity sensor, with the one-to-one correspondence setting of each air draft section of the air draft branch pipe on the textile gas setting machine, for obtaining the exhaust gas discharge humidity parameter of setting machine section;Variable frequency control induced draft fan, replace the induced draft fan corresponding to the air draft branch pipe;Controller, with the variable frequency control induced draft fan, high-temperature humidity sensor connection;With the starting switch of connected gas burner, the oxygen-rich machine vacuum pump frequency converter circuit connection.

Description

Technical Field

[0001] The present invention relates to a textile gas setting machine equipped with an oxygen-enriched, humidity-controlled and energy-saving system, which is applicable to the field of textile setting equipment. Background Art

[0002] Due to environmental protection requirements, the thermal energy of textile setting machines has basically been changed to gas-fired direct-fired heating textile gas setting machines, except for those with conditions for electric steam cogeneration. However, the current gas-fired direct-fired heating textile gas setting machines have high gas consumption, low utilization rate and large heat loss. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in view of the above-mentioned problems, a textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system is provided.

[0004] The technical solution adopted by the present invention is: a textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system, characterized in that the oxygen-enriched humidity control and energy-saving system comprises:

[0005] An oxygen-enriched oxygen generator is provided correspondingly to the gas burners on the textile gas setting machine to generate oxygen-enriched air;

[0006] The three-way bypass and the bypass valve are set in one-to-one correspondence with the gas burners, one end of which is connected to the oxygen-enriched air outlet of the oxygen-enriched oxygen concentrator, and the other end is connected to the pipeline between the corresponding gas burner and the gas access solenoid valve on the textile gas setting machine; the three-way bypass and the bypass valve are connected to the atmosphere. When the bypass valve is debugged, the minimum opening of the bypass valve is based on the minimum opening at which the oxygen-enriched air enters the gas burner without blowing out the flame, and it is locked after adjustment;

[0007] A high-temperature humidity sensor is provided correspondingly to each induced air branch pipe of each induced air section on the textile gas setting machine, and is used to obtain the exhaust gas dehumidification humidity parameters of each section of the setting machine;

[0008] The induced draft fan is controlled by a frequency conversion device and replaces the induced draft fan corresponding to the induced draft branch pipe;

[0009] The controller is connected to the variable frequency controlled induced draft fan and the high temperature humidity sensor, and is used to control the operation of the variable frequency controlled induced draft fan based on the exhaust gas dehumidification humidity parameters obtained by the high temperature humidity sensor to achieve closed-loop humidity control; it is connected to the starting switch of the connected gas burner and the frequency converter circuit of the oxygen-enriched oxygen concentrator vacuum pump, and is used to control the oxygen-enriched oxygen concentrator vacuum pump to control the operation of the oxygen-enriched oxygen concentrator according to the preset delayed start time, the speed of gradually increasing the frequency and the maximum operating frequency reached after the gas burner is started, and control the oxygen-enriched oxygen concentrator vacuum pump to be turned off after the gas burner is turned off.

[0010] The oxygen-enriched oxygen concentrator comprises:

[0011] An air separation chamber, one end of which is an air inlet end and the other end is an exhaust end;

[0012] An oxygen-enriched membrane group is arranged in the air separation chamber and comprises a plurality of oxygen-enriched membranes, wherein an air passage connecting the air inlet end and the exhaust end of the air separation chamber is formed between the oxygen-enriched membranes;

[0013] The oxygen-enriched air extraction mechanism is connected to the air separation chamber and can form a pressure difference on both sides of the oxygen-enriched membrane in the oxygen-enriched membrane group in the air separation chamber.

[0014] The air inlet end of the air separation chamber is provided with an air filter, and the exhaust end is provided with an exhaust chamber and an exhaust fan.

[0015] The oxygen-enriched oxygen concentrator has a box body, which is divided into an equipment installation chamber, the exhaust chamber and an air separation chamber by a sealed partition, wherein the oxygen-enriched exhaust mechanism is installed in the equipment installation chamber.

[0016] The equipment installation chamber is provided with a vent and a ventilation fan.

[0017] The oxygen-enriched air extraction mechanism comprises a vacuum pump, the vacuum pump is connected with an oxygen-enriched air extraction pipe and an oxygen-enriched air outlet pipe, wherein the oxygen-enriched air extraction pipe is connected with the air separation chamber.

[0018] The bottom of the vacuum pump is equipped with a shock absorber.

[0019] The oxygen-enriched exhaust pipe is equipped with a vacuum gauge.

[0020] The beneficial effects of the present invention are as follows: the present invention improves combustion efficiency, saves gas consumption, and achieves energy conservation and emission reduction by introducing oxygen-enriched air (29-30% oxygen enrichment concentration) into the gas burner; the present invention realizes closed-loop humidity control by controlling frequency conversion exhaust gas emission control for the purpose of controlling stable dehumidification through a high-temperature humidity sensor and a frequency conversion controlled induced draft fan, so as to keep the humidity of each section of the shaping stable, reduce excessive hot gas emissions, reduce the amount of fresh cold air entering the shaping channel, and further achieve the energy-saving effect of saving gas consumption through the temperature closed-loop control provided by the gas burner.

[0021] The present invention combines the above two energy-saving means (humidity control and oxygen control) to achieve complementary advantages and improve the overall energy saving rate of the product of the present invention.

[0022] The present invention adopts membrane method to produce oxygen, which has the advantages of minimum power consumption and miniaturization, can realize independent oxygen-enriched combustion control of a single burner, is safer and more reliable, saves pipeline installation costs, and reduces the probability of failure shutdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of the embodiment.

[0024] Figure 2 Schematic diagram of the structure of the oxygen-enriched oxygen generator in the embodiment.

[0025] In the figure: 1. Gas setting machine; 2. Frequency conversion controlled induced draft fan; 3. High temperature and humidity sensor; 4. Induced draft branch pipe; 6. Oxygen enrichment oxygen generator; 7. Tee; 8. Bypass valve; 9. Gas burner; 10. Oxygen enrichment membrane group; 11. Oxygen enrichment gas collecting pipe; 13. Vacuum gauge; 14. Oxygen enrichment exhaust pipe; 15. Air filter; 16. Ventilation fan; 17. Vacuum pump; 18. Oxygen enrichment outlet pipe; 19. Box; 20. Shock absorber; 21. Sealing partition; 22. Exhaust fan; 23. Exhaust chamber. DETAILED DESCRIPTION

[0026] like Figure 1 As shown, this embodiment is a textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system, which includes an oxygen-enriched oxygen generator 6, a three-way valve 7, a bypass valve 8, a high-temperature humidity sensor 3 and a frequency-controlled induced draft fan 2, etc.

[0027] In this example, an oxygen-enriched oxygen generator and a three-way bypass valve are installed on each gas burner of the gas setting machine. The oxygen-enriched outlet pipe of the oxygen-enriched oxygen generator is connected to the pipeline between the corresponding gas burner 9 and the gas access solenoid valve 8 on the textile gas setting machine through a three-way valve.

[0028] In this embodiment, one end of the three-way valve is connected to the oxygen-enriched air outlet pipe of the oxygen-enriched oxygen generator, one end is connected to the three-way bypass valve connected to the atmosphere, and the other end is connected to the pipeline between the corresponding gas burner and the gas inlet solenoid valve on the textile gas setting machine. The three-way bypass valve is adjusted to the minimum opening that allows oxygen-enriched air to enter the gas burner without extinguishing the flame. Once adjusted, it is locked and fixed.

[0029] In this embodiment, the oxygen-enriched air generated by the oxygen-enriched machine passes through the frequency converter in the controller and controls the vacuum pump of the oxygen-enriched oxygen concentrator according to the start-stop switch signal of the gas burner to control the operation of the oxygen-enriched oxygen concentrator according to the preset delayed start time, the speed of gradually increasing the frequency and the maximum operating frequency reached. These three control parameter values ​​are preset values ​​for each gas burner of the setting machine after independent debugging to achieve the best pre-mixing of oxygen-enriched air and gas before entering the gas burner for combustion. The combustion temperature is still controlled by the combustion temperature adjustment mechanism of the gas burner itself to control the setting temperature of each section, thereby saving gas.

[0030] In this embodiment, a high-temperature humidity sensor is correspondingly provided on the induced draft branch pipe 4 of each induced draft section on the textile gas setting machine, so as to obtain the exhaust gas dehumidification humidity parameters of each section of the setting machine; and the induced draft fan corresponding to the induced draft branch pipe on the textile gas setting machine is converted into a frequency-controlled induced draft fan, and the exhaust gas dehumidification humidity parameters of each section of the setting machine are obtained through the high-temperature humidity sensor on the induced draft branch pipe, and closed-loop humidity control is realized in cooperation with the frequency-controlled induced draft fan, so that the humidity of each setting section remains stable, and excessive hot gas emission is reduced, so as to achieve energy-saving effect.

[0031] In this example, the controller is used to implement closed-loop control of the variable frequency induced draft fan and the high-temperature humidity sensor, thereby reducing the amount of fresh cold air entering the shaping channel and reducing hot gas emissions. The temperature and gas closed-loop regulation of the gas burners in each section are then used to reduce gas consumption.

[0032] The frequency converter in the controller controls the vacuum pump of the oxygen-enriched oxygen concentrator to operate according to the preset delayed start time, the speed of gradually increasing the frequency and the maximum operating frequency reached after the gas burner is started. It also controls the vacuum pump of the oxygen-enriched oxygen concentrator to shut down after the gas burner is shut down. The control parameters of the oxygen-enriched oxygen concentrator corresponding to each gas burner are independently debugged and set to ensure the best effect of oxygen-enriched combustion.

[0033] like Figure 2 As shown, the oxygen-enriched oxygen concentrator in this embodiment has a box body 19, which is divided into an equipment installation chamber, an exhaust chamber 23 and an air separation chamber by a sealed partition 21, wherein one end of the air separation chamber is an air inlet end located on the side wall of the box body, and the air inlet end is provided with an air filter, and the other end of the air separation chamber is an exhaust end, and the exhaust end is provided with an exhaust chamber 23 and an exhaust fan 22 is installed in the exhaust chamber; one side of the air separation chamber is an equipment installation chamber, and the installation chamber and the air separation chamber are separated by a sealed partition.

[0034] In this example, an oxygen-enriched membrane group is installed in the air separation chamber. The oxygen-enriched membrane group has several oxygen-enriched membranes parallel to each other, and the oxygen-enriched membranes are parallel to the sealing partition between the equipment installation chamber and the air separation chamber. An air passage connecting the air inlet end and the exhaust end of the air separation chamber is formed between the oxygen-enriched membranes.

[0035] In this example, an oxygen-enriched gas extraction mechanism is installed within the equipment installation chamber. The mechanism comprises a vacuum pump 17, connected to an oxygen-enriched gas extraction pipe 14 and an oxygen-enriched gas outlet pipe 18. The oxygen-enriched gas extraction pipe is equipped with a vacuum gauge 13. The vacuum pump is connected via the oxygen-enriched gas extraction pipe to an oxygen-enriched gas collecting pipe 11 on the sealed partition between the equipment installation chamber and the air separation chamber, and is thus connected to the air separation chamber. This vacuum pump creates a pressure differential across the oxygen-enriched membranes in the oxygen-enriched membrane array within the air separation chamber.

[0036] The vacuum gauge is used to test the vacuum degree inside the oxygen-enriched membrane during the installation and commissioning of the oxygen-enriched oxygen generator. Because the oxygen-enriched concentration is related to the vacuum degree, the oxygen-enriched membrane used in this example is a plate-type oxygen-enriched membrane module that can achieve an oxygen-enriched concentration of 29-30% under a vacuum degree of -75kPa. The fresh air for oxygen production passes evenly from the outside of the membrane of the oxygen-enriched membrane module through the filter and the exhaust fan. The vacuum pump extracts air from the inside of the oxygen-enriched membrane module, and extracts 29-30% of the enriched oxygen through the oxygen-enriched gas collecting pipe and the oxygen-enriched gas extraction pipe and discharges it from the oxygen-enriched gas outlet pipe.

[0037] In this embodiment, a vent and a ventilation fan are provided on the equipment installation chamber to facilitate ventilation and heat dissipation of the vacuum pump.

[0038] In this embodiment, the air outside the box is sucked into the air separation chamber through the air filter 15, and then discharged out of the box by the exhaust fan through the exhaust chamber. The fresh air sucked from the air filter can evenly flow through the oxygen-enriched membrane group and then be discharged out of the box.

[0039] In this example, a vacuum is formed on one side of the oxygen-enriched membrane in the oxygen-enriched membrane group through a vacuum pump, so that a pressure difference is formed on both sides of the oxygen-enriched membrane. As a result, more oxygen than nitrogen in the fresh air passing through the oxygen-enriched membrane group passes through the oxygen-enriched membrane and enters the oxygen-enriched gas collecting pipe, and is then discharged from the oxygen-enriched gas outlet pipe through the oxygen-enriched gas extraction pipe and the vacuum pump. The resulting oxygen-enriched concentration can be stabilized at 29-30% for combustion support.

[0040] In this embodiment, the high-temperature humidity sensor is resistant to high temperatures and should be 100°C higher than the control temperature to ensure its service life; the installation position is at the humidity sensitive position of the induced draft duct where the variable frequency induced draft fan corresponding to the closed-loop control is located, or near the suction or exhaust port of the variable frequency induced draft fan.

Claims

1. A textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system, characterized in that: The oxygen-enriched humidity control and energy-saving system comprises: An oxygen-enriched oxygen generator is provided correspondingly to the gas burners on the textile gas setting machine to generate oxygen-enriched air; The three-way bypass and the bypass valve are set in one-to-one correspondence with the gas burners, one end of which is connected to the oxygen-enriched air outlet of the oxygen-enriched oxygen concentrator, and the other end is connected to the pipeline between the corresponding gas burner and the gas access solenoid valve on the textile gas setting machine; the three-way bypass and the bypass valve are connected to the atmosphere. When the bypass valve is debugged, the minimum opening of the bypass valve is based on the minimum opening at which the oxygen-enriched air enters the gas burner without blowing out the flame, and it is locked after adjustment; A high-temperature humidity sensor is provided corresponding to each induced draft branch pipe of each induced draft section of the textile gas setting machine, and is installed at a humidity-sensitive position of the induced draft pipe where the corresponding closed-loop controlled variable frequency induced draft fan is located, or near the air intake or exhaust port of the variable frequency induced draft fan; and is used to obtain exhaust humidity parameters of the exhaust gas from each section of the setting machine; The induced draft fan is controlled by a frequency conversion device and replaces the induced draft fan corresponding to the induced draft branch pipe; The controller is connected to the variable frequency controlled induced draft fan and the high temperature humidity sensor, and is used to control the operation of the variable frequency controlled induced draft fan based on the exhaust gas dehumidification humidity parameters obtained by the high temperature humidity sensor to achieve closed-loop humidity control; it is connected to the start switch of the connected gas burner and the frequency converter circuit of the oxygen-enriched oxygen concentrator vacuum pump, and is used to control the oxygen-enriched oxygen concentrator vacuum pump to control the operation of the oxygen-enriched oxygen concentrator according to the preset delayed start time, the speed of gradually increasing the frequency and the maximum operating frequency reached after the gas burner is started, and to control the oxygen-enriched oxygen concentrator vacuum pump to shut down after the gas burner is shut down; The oxygen-enriched oxygen concentrator comprises: An air separation chamber, one end of which is an air inlet end and the other end is an exhaust end; An oxygen-enriched membrane group is arranged in the air separation chamber and has a plurality of oxygen-enriched membranes. An air passage connecting the air inlet end and the exhaust end of the air separation chamber is formed between the oxygen-enriched membranes. The oxygen-enriched air extraction mechanism is connected to the air separation chamber and can form a pressure difference on both sides of the oxygen-enriched membrane in the oxygen-enriched membrane group in the air separation chamber.

2. The textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system according to claim 1, characterized in that: The air inlet end of the air separation chamber is provided with an air filter, and the exhaust end is provided with an exhaust chamber and an exhaust fan.

3. The textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system according to claim 2, characterized in that: The oxygen-enriched oxygen concentrator has a box body, which is divided into an equipment installation chamber, the exhaust chamber and an air separation chamber by a sealed partition, wherein the oxygen-enriched exhaust mechanism is installed in the equipment installation chamber.

4. The textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system according to claim 3 is characterized in that: The equipment installation chamber is provided with a vent and a ventilation fan.

5. The textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system according to claim 1, 3 or 4, characterized in that: The oxygen-enriched air extraction mechanism comprises a vacuum pump, the vacuum pump is connected with an oxygen-enriched air extraction pipe and an oxygen-enriched air outlet pipe, wherein the oxygen-enriched air extraction pipe is connected with the air separation chamber.

6. The textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system according to claim 5, characterized in that: The bottom of the vacuum pump is equipped with a shock absorber.

7. The textile gas setting machine equipped with an oxygen-enriched humidity control and energy-saving system according to claim 5, characterized in that: The oxygen-enriched exhaust pipe is equipped with a vacuum gauge.

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