CN211025691U - Thermal regeneration system of adsorbent - Google Patents
Thermal regeneration system of adsorbent Download PDFInfo
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- CN211025691U CN211025691U CN201921855541.7U CN201921855541U CN211025691U CN 211025691 U CN211025691 U CN 211025691U CN 201921855541 U CN201921855541 U CN 201921855541U CN 211025691 U CN211025691 U CN 211025691U
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Abstract
The utility model relates to an adsorbent thermal regeneration system, which comprises a blower, a hot water heat exchanger, an electric heater and a regeneration tower which are connected in sequence through a thermal regeneration pipeline, wherein the thermal regeneration pipeline is filled with heated air; a water inlet of the hot water heat exchanger is connected with a hot water pipeline of a boiler room, and a water outlet of the hot water heat exchanger is connected with a circulating water pipe; switch valves are arranged on the heat regeneration pipeline and the hot water pipeline of the boiler room; a thermometer is arranged on a heat regeneration pipeline between the electric heater and the regeneration tower; and an adsorbent is filled in the regeneration tower. Compared with the prior art, the utility model has the advantages of low production cost, being favorable for the utilization of low-quality energy, good economic benefit, etc.
Description
Technical Field
The utility model relates to an adsorbent regeneration system especially relates to a thermal regeneration system of adsorbent.
Background
When the adsorbent in the adsorption tower is subjected to thermal regeneration, hot air is needed to heat the adsorbent, and an electric heater is used for heating when the existing blowing zero-gas-consumption dryer BD2200+ ZP is subjected to thermal regeneration. In the regeneration process, the blower is started to suck the atmosphere in the environment into the regeneration pipeline, the regeneration gas is heated to a temperature of between 180 ℃ and 200 ℃ through the regulation of the two groups of electric heaters, the high-temperature regeneration gas carries out thermal regeneration on the adsorbent in the adsorption tower from top to bottom, and the regeneration gas after the regeneration is finished is discharged into the atmosphere through the discharge port. The blower and the electric heater consume a large amount of electric energy in the whole work flow. In the process of producing compressed air, the power consumption of the dryer accounts for about 5% of the total power consumption of the compressed air production, and reducing the power consumption of the dryer has a remarkable influence on the unit consumption of the compressed air. Because the electric energy cost is higher, the economic efficiency is poorer for the factory, so how to adopt the energy of low quality to accomplish the adsorbent regeneration, improve the economic benefits of the factory and have important significance.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a thermal adsorbent regeneration system for overcoming the above-mentioned drawbacks of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
a thermal regeneration system of an adsorbent comprises a blower, a hot water heat exchanger, an electric heater and a regeneration tower which are sequentially connected through a thermal regeneration pipeline, wherein heated air is introduced into the thermal regeneration pipeline; a water inlet of the hot water heat exchanger is connected with a hot water pipeline of a boiler room, and a water outlet of the hot water heat exchanger is connected with a circulating water pipe; switch valves are arranged on the heat regeneration pipeline and the hot water pipeline of the boiler room; a thermometer is arranged on a heat regeneration pipeline between the electric heater and the regeneration tower; and an adsorbent is filled in the regeneration tower.
The hot water heat exchanger is a shell-and-tube heat exchanger, a heat regeneration pipeline is communicated with a tube pass of the shell-and-tube heat exchanger, and a hot water pipeline is communicated with the shell pass of the shell-and-tube heat exchanger.
The switch valve is an electric valve.
The thermometer is a telemetering thermometer.
The heat regeneration system is characterized by further comprising a control cabinet, wherein a P L C controller is arranged inside the control cabinet, and the P L C controller is in signal connection with a switch valve arranged on the heat regeneration pipeline, a switch valve arranged on the hot water pipeline, a thermometer and a heating switch of the electric heater.
The hot air inlet of the regeneration tower is arranged at the top of the regeneration tower and is communicated with the electric heater through a heat regeneration pipeline.
The regeneration tower is provided with an air discharge port communicated with the atmosphere, the air discharge port is communicated with the outdoor atmosphere through an air discharge pipeline, and the air discharge port is provided with a switch valve.
And the air inlet of the blower is connected with a dust removal filter.
Wherein the temperature of the heated air at the outlet of the hot water heat exchanger is above 130 ℃; the temperature of the heated air at the outlet of the electric heater is 180-200 ℃.
The utility model discloses an operating principle is when this system gets into the heat regeneration flow, the hot water valve on the valve of P L C controller control heat regeneration pipeline and the hot water heat exchanger is opened simultaneously, heat the regeneration gas by 140 ℃'s hot water (can heat the regeneration gas more than 130 ℃ in the prediction), then add the heating by electric heater, in this process, teletransmission thermometer measuring temperature value is carried for P L C controller, the P L C controller is according to this temperature value, control electric heater heats the regeneration gas to between 180-.
Hot water heat exchanger and electric heater constitute air dryer, the utility model provides a 140 ℃ hot water adopts gas boiler heating, compares the electrical heating, produces the same heat, adopts the gas consumption cost to be less than the electrical heating cost. According to the energy conversion of kWh and GJ, the dryer needs to consume 1GJ heat of 140 ℃ hot water every time 278kWh of electricity is saved (calculated according to 100% conversion heat); the hot water and the natural gas can be obtained according to the unit consumption of the hot water and the natural gas, and the hot water heat of the boiler are generated every time 1GJConsumption of 30Nm of natural gas3. Namely, when the power consumption of the 278kWh dryer is reduced, 30Nm of natural gas is consumed3. According to the average electricity unit price of 0.65 yuan/kWh and the natural gas unit price of 2.92 yuan/Nm3The calculation is equivalent to that the hot water consumes 87.6 yuan of natural gas every 180.7 yuan of electricity cost of the dryer, and the actual energy cost is 51.5% of the electricity cost of the dryer.
The utility model discloses only need be less to current drying device's change, consequently implement the transformation on the basis of existing equipment very easily, can directly replace the primary heater with hot water heat exchanger. The time for hot water to enter the heat exchanger is automatically controlled by an electric valve, and a control signal is directly introduced into a start-stop signal for the first-stage heating of the existing heater.
The waste of hot water flow is avoided by the valve for making hot water to enter the heat exchanger.
Meanwhile, the temperature regulation of the outlet of the electric heater is kept, and the stable output of the heating temperature is ensured.
Compared with the prior art, the utility model has the advantages of it is following:
(1) air is heated by hot water, the hot water can be from gas or hot water generated by other equipment needing cooling, and compared with electric energy, the utilization efficiency of energy is higher;
(2) the cost is reduced, the cost of heating the air by adopting hot water generated by gas is lower than the electric heating cost, the energy consumption cost can be reduced by 51.5 percent, and the economic benefit is greater;
(3) the method is easy to be modified and implemented on the existing equipment, and the modification cost is low.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a process flow diagram of the present invention;
in the figure, 1 is a blower, 2 is a hot water heat exchanger, 3 is an electric heater, 4 is a regeneration tower, 5 is a heat regeneration pipeline, 6 is a hot water pipeline, 7 is a first switch valve, 8 is a second switch valve, 9 is a telemetering thermometer, 10 is a heating switch, 11 is a control cabinet, 12 is an air discharge pipeline, and 13 is a dust removal filter.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Examples
A thermal regeneration system of an adsorbent is shown in figure 1 and comprises an air blower 1, a hot water heat exchanger 2, an electric heater 3, a regeneration tower 4 and a control cabinet 11 with a P L C controller arranged inside, wherein the air blower 1, the hot water heat exchanger 2, the electric heater 3 and the regeneration tower 4 are sequentially connected through a hot regeneration pipeline 5, heating air is introduced into the hot regeneration pipeline 5, a water inlet of the hot water heat exchanger 2 is connected with a hot water pipeline 6 of a boiler room, a water outlet of the hot water heat exchanger 2 is connected with a circulating water pipe, switch valves are arranged on the hot regeneration pipeline 5 and the hot water pipeline 6 of the boiler room, a thermometer is arranged on the hot regeneration pipeline 5 between the electric heater 3 and the regeneration tower 4, the adsorbent is filled in the regeneration tower 4, the hot water heat exchanger 2 is a shell-and tube heat exchanger, the hot regeneration pipeline 5 is communicated with a tube pass of the shell-and tube heat exchanger, the hot water pipeline 6 is communicated with a shell pass of the shell-and tube heat exchanger, the common switch valve is an electric valve, the thermometer 9, a P L C controller is in communication with a first switch valve 7 arranged on the hot regeneration pipeline 5, a second switch 8 and the electric heater arranged on the hot regeneration pipeline 6, the hot regeneration pipeline, the electric heater is in the hot regeneration pipeline, the air pipeline L C controller is communicated with a heating switch 10 of the air regeneration tower, the air inlet of the air heater, the air regeneration tower 4, the air heater is communicated with an air inlet of the air regeneration tower 4, and an air regeneration.
The system working process of the implementation is as follows: as shown in fig. 2, when the dryer enters a thermal regeneration process, the first switch valve 7 of the thermal regeneration pipeline 5 and the second switch valve 8 of the hot water pipeline 6 are simultaneously opened, the regeneration gas is heated by the hot water at 140 ℃ (it is expected that the regeneration gas can be heated to above 130 ℃), and then is additionally heated by the electric heater 3, the regeneration gas is heated to 180-200 ℃ (the specific heating temperature is more dependent on the process requirements), and the final temperature of the compressed air entering the regeneration tower can be adjusted by adjusting the heating power of the electric heater 3. Through the transformation, the power consumption of the electric heater can be greatly reduced.
The hot water at 140 ℃ is heated by a gas boiler, the same heat is generated compared with electric heating, and the consumption cost of the gas is lower than the electric heating cost. According to the energy conversion between kWh and GJ, the dryer, namely the hot water heat exchanger 2 and the electric heater 3, needs to consume 1GJ heat of hot water at 140 ℃ when the electricity of 278kWh is saved (calculated according to 100% conversion heat); according to the unit consumption of hot water and natural gas, the natural gas is consumed by 30Nm when the hot water heat of the 1GJ boiler is generated3. Namely, when the power consumption of the 278kWh dryer is reduced, 30Nm of natural gas is consumed3. According to the average electricity unit price of 0.65 yuan/kWh and the natural gas unit price of 2.92 yuan/Nm3The calculation is equivalent to that the hot water consumes 87.6 yuan of natural gas every 180.7 yuan of electricity cost of the dryer, and the actual energy cost is 51.5% of the electricity saving amount of the dryer. The existing electric heater of the drying machine is controlled by two-stage heating, and the hot water heat exchanger can directly replace a first-stage heater of the original process by the transformation scheme. The time of the hot water heat exchanger is automatically controlled by an electric valve, and a control signal is directly introduced into a start-stop signal of the first-stage heating of the existing heater. The waste of hot water flow is avoided by controlling the hot water to enter the valve of the heat exchanger. Meanwhile, the temperature regulation of the second section of electric heater is kept, and the stable output of the heating temperature is ensured.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (8)
1. The thermal regeneration system of the adsorbent is characterized by comprising a blower (1), a hot water heat exchanger (2), an electric heater (3) and a regeneration tower (4) which are sequentially connected through a thermal regeneration pipeline (5), wherein heating air is introduced into the thermal regeneration pipeline (5); a water inlet of the hot water heat exchanger (2) is connected with a hot water pipeline (6) of a boiler room, and a water outlet of the hot water heat exchanger (2) is connected with a circulating water pipe; switch valves are arranged on the heat regeneration pipeline (5) and the hot water pipeline (6) of the boiler room; a thermometer is arranged on a heat regeneration pipeline (5) between the electric heater (3) and the regeneration tower (4); and an adsorbent is filled in the regeneration tower (4).
2. An adsorbent thermal regeneration system according to claim 1, wherein the hot water heat exchanger (2) is a shell-and-tube heat exchanger, the thermal regeneration pipe (5) is communicated with the tube side of the shell-and-tube heat exchanger, and the hot water pipe (6) is communicated with the shell side of the shell-and-tube heat exchanger.
3. A thermal adsorbent regeneration system as claimed in claim 1 wherein said switching valve is an electrically operated valve.
4. A thermal regeneration system for an adsorbent according to claim 3, characterized in that said thermometer is a telemetric thermometer (9).
5. A thermal regeneration system for an adsorbent according to claim 4 further comprising a control cabinet (11) having a P L C controller disposed therein, said P L C controller being in signal communication with a switch valve disposed on said thermal regeneration conduit (5), a switch valve disposed on said hot water conduit (6), a thermometer and a heating switch (10) of the electric heater (3).
6. A thermal regeneration system for an adsorbent according to claim 1, characterized in that the hot air inlet of the regeneration tower (4) is arranged at the top of the regeneration tower (4), and the hot air inlet is communicated with the electric heater (3) through a thermal regeneration pipeline (5).
7. A thermal adsorbent regeneration system as claimed in claim 1, wherein said regeneration tower (4) is provided with an air discharge port connected to the atmosphere, said air discharge port being connected to the outdoor atmosphere via an air discharge conduit (12), and said air discharge port being provided with a switch valve.
8. A thermal regeneration system for a sorbent according to claim 1, characterized in that a dust removal filter (13) is connected to the air inlet of the blower (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855541.7U CN211025691U (en) | 2019-10-31 | 2019-10-31 | Thermal regeneration system of adsorbent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855541.7U CN211025691U (en) | 2019-10-31 | 2019-10-31 | Thermal regeneration system of adsorbent |
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| CN211025691U true CN211025691U (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652835A (en) * | 2019-10-31 | 2020-01-07 | 长沙经济技术开发区祥原动力供应有限公司 | Thermal regeneration system of adsorbent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652835A (en) * | 2019-10-31 | 2020-01-07 | 长沙经济技术开发区祥原动力供应有限公司 | Thermal regeneration system of adsorbent |
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