CN203240858U - Energy-saving regenerative gas heater and molecular sieve activating and regenerating heating system - Google Patents
Energy-saving regenerative gas heater and molecular sieve activating and regenerating heating system Download PDFInfo
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- CN203240858U CN203240858U CN 201320154602 CN201320154602U CN203240858U CN 203240858 U CN203240858 U CN 203240858U CN 201320154602 CN201320154602 CN 201320154602 CN 201320154602 U CN201320154602 U CN 201320154602U CN 203240858 U CN203240858 U CN 203240858U
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Abstract
The utility model belongs to the technical field of dividing wall type heat exchangers, particularly relates to an energy-saving regenerative gas heater and a molecular sieve activating and regenerating heating system, and comprises a preheater and an electric heater. The preheater adopts a plate-fin heat exchanger and comprises at least one regenerative gas channel and a product gas channel; the regenerative gas channel comprises a regenerative gas inlet connecting pipe, a regenerative gas end socket, a regenerative gas distributing fin, a regenerative gas heat transfer fin and a regenerative gas outlet connecting pipe; the product gas channel comprises a product gas inlet connecting pipe, a product gas distributing fin, a product gas heat transfer fin and a product gas outlet connecting pipe; the electric heater comprises an electric heating pipe which is fixed on a pipe plate and is arranged in a barrel body; semicircular baffle plates are distributed on the electric heating pipe in a staggered way; the regenerative gas outlet connecting pipe is arranged on the barrel body; the barrel body is connected with the pipe plate through a flange; and a connection box of the electric heating pipe is arranged above the pipe plate. The energy-saving regenerative gas heater has a compact structure, is small in floor space, low in pressure drop, does not affect the rectification of an air distillation tower, and reduces operation energy consumption, thereby being applicable to promotion and implementation.
Description
Technical field
The utility model belongs to the dividing wall type heat exchanger technical field, particularly relates to a kind of energy-saving regeneration gas heater and molecular sieve activating and regenerating heating system.
Background technology
The sixth air separation equipment airborne moisture content of molecular sieve adsorption and carbon dioxide.Because H
2O and CO
2Solidification temperature all be higher than the operating temperature of equipment, like this, their deposition and concentrated just can consist of equipment in the ice chest and stop up.Absorber must arrive at the forward of adsorbate (before namely penetrating) before the absorption outlet, utilizes dirty nitrogen that molecular sieve is carried out thermal regeneration, and heater is generally selected electric heater or steam heater.
Adopt the application of technique in air separation plant of regeneration gas preheating to start from the eighties in last century, because the anxiety of the energy, take the saving operation energy consumption as purpose, not stinting increases disposable input.Once adopt pre-heat exchanger in the air separation plant of import Japan, domesticly also did successful trial at Hubei Province steel and Changzhi two covers on 6000 empty minutes.These pre-heat exchangers adopt out the saturated dirty nitrogen of regeneration that contains humid air and purification system of air compressor machine to carry out heat exchange, utilize the high characteristics of air compressor machine delivery temperature, in advance regeneration gas is heated, thereby the energy consumption of reduction regeneration electric heater reach energy-conservation purpose.But it is not remarkable that its concrete effect relatively initially drops into, because on the especially different people, different views of impact of rectifying aspect, this is the reason that is not widely used of pre-heat exchanger just also.
Summary of the invention
The technical problems to be solved in the utility model overcomes above-mentioned the deficiencies in the prior art exactly, and a kind of compact conformation is provided, and floor space is little, and it is little to have a pressure drop, on the rectifying of air separation column without impact, and energy-saving regeneration gas heater and the molecular sieve activating and regenerating heating system of saving operation energy consumption.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of energy-saving regeneration gas heater, formed by preheater and electric heater, described preheater is plate-fin heat exchanger, and formed by a regeneration gas passage and a gas product passage at least, the regeneration gas passage is by the regeneration gas entrance sleeve, the regeneration gas end socket, the regeneration gas distributing fin, regeneration gas heat exchange fin and regeneration gas discharge connection form, the gas product passage is by the gas product entrance sleeve, the gas product distributing fin, gas product heat exchange fin and product gas outlet are taken over and are formed, described electric heater comprises and is fixed on the tube sheet and places electric heating tube in the cylindrical shell, be furnished with semicircle deflection plate in that electric heating tube is staggered, be provided with the regeneration gas discharge connection on the cylindrical shell, cylindrical shell is connected by flange with tube sheet, is provided with the junction box of electric heating tube above tube sheet.
Described energy-saving regeneration gas heater is vertical, and electric heater is positioned at the preheater top, and flange and the direct-connected fixed installation of securing member are adopted in the adapter on electric heater and preheater top.
Described energy-saving regeneration gas heater is horizontal, and electric heater one side is provided with the regeneration gas inlet tube, and is direct-connected fixing by flange and securing member with the regeneration gas outlet of preheater one side, perhaps is fixedly connected with by tube connector, flange and securing member.
Described gas product passage is the compressed nitrogen passage, compress choosing any one kind of them in dirty channel of nitrogen, the compressed oxygen passage.
Described electric heater is vertical or horizontal.
Described electric heating tube is straight tube or U-shaped pipe.
A kind of molecular sieve activating and regenerating heating system, at least comprise a gas product compressor, energy-saving regeneration gas heater and gas product cooler, gas product compressor outlet place is equipped with the gas product pipeline, the gas product pipeline passes energy-saving regeneration gas heater and gas product cooler in succession, the end of gas product pipeline is communicated with user's pipe network, place, gas product suction port of compressor is provided with the gas product pipeline and is communicated with air separation plant, be separately installed with the regeneration gas pipeline on the regeneration gas entrance sleeve of described energy-saving regeneration gas heater and the regeneration gas discharge connection, the regeneration gas pipeline that install at described regeneration gas entrance sleeve place is communicated with air separation plant, and the regeneration gas pipeline that install at regeneration gas discharge connection place is communicated with molecular sieve adsorber.
Described energy-saving regeneration gas heater is comprised of preheater and electric heater, described preheater is plate-fin heat exchanger, and formed by a regeneration gas passage and a gas product passage at least, the regeneration gas passage is by the regeneration gas entrance sleeve, the regeneration gas end socket, the regeneration gas distributing fin, regeneration gas heat exchange fin and regeneration gas discharge connection form, the gas product passage is by the gas product entrance sleeve, the gas product distributing fin, gas product heat exchange fin and product gas outlet are taken over and are formed, described electric heater comprises and is fixed on the tube sheet and places electric heating tube in the cylindrical shell, be furnished with semicircle deflection plate in that electric heating tube is staggered, be provided with the regeneration gas discharge connection on the cylindrical shell, cylindrical shell is connected by flange with tube sheet, is provided with the junction box of electric heating tube above tube sheet.
Described gas product compressor is choosing any one kind of them in nitrogen compressor, dirty nitrogen compressor and the oxygen compressor.
Described energy-saving regeneration gas heater is vertical, and electric heater is positioned at the preheater top, and flange and the direct-connected fixed installation of securing member are adopted in the adapter on electric heater and preheater top; Perhaps described energy-saving regeneration gas heater is horizontal, and electric heater one side is provided with the regeneration gas inlet tube, and is direct-connected fixing by flange and securing member with the regeneration gas outlet of preheater one side, perhaps is fixedly connected with by tube connector, flange and securing member.
Described gas product passage and gas product compressor are complementary, for the compressed nitrogen passage, compress a kind of accordingly in dirty channel of nitrogen, the compressed oxygen passage; Described electric heater is vertical or horizontal; Described electric heating tube is straight tube or U-shaped pipe.
Operation principle of the present utility model is:
The utility model takes the final stage exhaust of product compressor that the dirty nitrogen of regenerating is carried out preheating, reaches energy-saving and cost-reducing purpose.Described regenerating molecular sieve heating technique refers to utilize the factor of pressure and temperature two aspects, and the adsorbate in the absorber is discharged.At first, absorber is depressurized to lower pressure (atmospheric pressure), again with the dry dirty nitrogen desorb of heating and take away the adsorbate that adsorbs, continues to use in order to next in cycle.Described energy-saving heater is a kind of electric heater with preheating, is comprised of preheater and electric heater.Described preheater utilizes the final stage exhaust preheating of product compressor to divide the dry dirty nitrogen of normal temperature and pressure of ice chest from sky.Described plate-fin heat exchanger is a kind of dividing wall type heat exchanger, is comprised of hot fluid gas product passage and the cold fluid dirty channel of nitrogen of regenerating, and each passage is comprised of adapter, end socket, distributing fin and heat exchange fin.Described electric heater be utilize electric heating tube will further be heated to from the dry dirty nitrogen of preheater regeneration temperature required.Described electric heating tube is to be the heating of heat energy with electric energy conversion.The Low Pressure Oxygen, nitrogen that described product compressor refers to out air separation unit is for satisfying user's pipe network to the pressure (compressor that the requirement of general 2.5MPa ~ 3.0MPa) arranges.Can make oxygen compressor or nitrogen compressor according to product category.
The beneficial effect of technical solutions of the utility model is:
1, structurally, the energy-saving regeneration gas heater of the utility model is comprised of preheater and electric heater, compare with traditional pre-heat exchanger, preheater utilizes the final stage exhaust preheating of product compressor to divide the dry dirty nitrogen of normal temperature and pressure of ice chest from sky, on operation principle, at first adopt gas product that regeneration gas is carried out preheating, the droop loss of having avoided traditional pre-heat exchanger to adopt air to bring, on the rectifying of air separation column without impact, secondly the product nitrogen gas after the compression is generally at 2.5MPa, 160 ℃, be higher than air compressor machine delivery temperature 0.5MPa, 100 ℃, pre-heat effect is good, and is energy-conservation, and preheater is plate-fin heat exchanger, plate-fin heat exchanger is a kind of dividing wall type heat exchanger, preferably uses plate-fin heat exchanger, compact conformation according to pressure drop and flow, the advantages such as it is little to have pressure drop, and floor space is little.
2, structurally, the energy-saving regeneration gas heater of the utility model can be selected vertical or horizontal according to apparatus arrangement, because vertical structure is compact by flange and securing member direct coupled structure, floor space is little; The version of electric heater can be vertical or horizontal, wherein adopts the vertical electric heater more can save the space; The pattern of electric heating tube can be divided into straight tube or U-shaped pipe, wherein adopts straight tube to be convenient to maintain and replace; The product compressor can use oxygen compressor or nitrogen compressor according to product category, wherein adopts oxygen compressor safer.
3, structurally, relative air separation unit without pre-heat exchanger, adopt the heating system of this energy-saving regeneration gas heater, take oxygen making amount 10000m3/h air separation plant as example, the power of electric heater can reduce 518KW, in heating in per 240 minutes 85 minutes, on average per hour save 183 degree electricity, by 1 year 8000 hour running time, 0.6 yuan of every degree of electricity price, can save about 880,000 yuan of operating cost in 1 year, remarkable in economical benefits.
4, to sum up, the energy-saving regeneration gas heater of the utility model and molecular sieve activating and regenerating heating system, compact conformation, floor space is little, and it is little to have a pressure drop, and the rectifying of air separation column without impact, and is saved operation energy consumption, therefore, is very suitable for promotion and implementation.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail, wherein:
Fig. 1 is one of structural representation of the energy-saving regeneration gas heater of the utility model;
Fig. 2 be the energy-saving regeneration gas heater of the utility model structural representation two;
Fig. 3 is one of structural representation of the utility model molecular sieve activating and regenerating heating system;
Sequence number among the figure: 1, the regeneration gas entrance sleeve, 2, the regeneration gas end socket, 3, the regeneration gas distributing fin, 4, the regeneration gas heat exchange fin, 5, the regeneration gas discharge connection, 6, the gas product entrance sleeve, 7, the gas product distributing fin, 8, the gas product heat exchange fin, 9, product gas outlet is taken over, 10, tube sheet, 11, cylindrical shell, 12, electric heating tube, 13, the regeneration gas discharge connection, 14,16,19, flange, 15, the junction box, 17, the regeneration gas inlet tube, 18, the regeneration gas outlet, 20, tube connector, 21, the gas product compressor, 22, energy-saving regeneration gas heater, 23, the gas product cooler, 24,26, the gas product pipeline, 25, user's pipe network, 27,30, air separation plant, 28,29, the regeneration gas pipeline, 31, molecular sieve adsorber, 32, take over 33, deflection plate.
The specific embodiment
Embodiment one:
Referring to Fig. 1, among the figure, the energy-saving regeneration gas heater of the utility model, formed by preheater and electric heater, described preheater is plate-fin heat exchanger, and formed by a regeneration gas passage and a gas product passage, the regeneration gas passage is by regeneration gas entrance sleeve 1, regeneration gas end socket 2, regeneration gas distributing fin 3, regeneration gas heat exchange fin 4 and regeneration gas discharge connection 5 form, the gas product passage is by gas product entrance sleeve 6, gas product distributing fin 7, gas product heat exchange fin 8 and product gas outlet are taken over 9 and are formed, described electric heater comprises and is fixed on the tube sheet 10 and places electric heating tube 12 in the cylindrical shell 11, be furnished with semicircle deflection plate 12 in that electric heating tube is staggered, be provided with regeneration gas discharge connection 13 on the cylindrical shell, cylindrical shell is connected by flange 14 with tube sheet, is provided with the junction box 15 of electric heating tube above tube sheet.Described energy-saving regeneration gas heater is vertical, and electric heater is positioned at the preheater top, and flange 16 and the direct-connected fixed installation of securing member are adopted in the adapter 32 on electric heater and preheater top.Described gas product passage is the compressed nitrogen passage, compress choosing any one kind of them in dirty channel of nitrogen, the compressed oxygen passage.Described electric heater is vertical.Described electric heating tube is straight tube.
Embodiment two:
Referring to Fig. 2, among the figure, the energy-saving regeneration gas heater of the utility model, formed by preheater and electric heater, described preheater is plate-fin heat exchanger, and formed by a regeneration gas passage and a gas product passage, the regeneration gas passage is by regeneration gas entrance sleeve 1, regeneration gas end socket 2, regeneration gas distributing fin 3, regeneration gas heat exchange fin 4 and regeneration gas discharge connection 5 form, the gas product passage is by gas product entrance sleeve 6, gas product distributing fin 7, gas product heat exchange fin 8 and product gas outlet are taken over 9 and are formed, described electric heater comprises and is fixed on the tube sheet 10 and places electric heating tube 12 in the cylindrical shell 11, be furnished with semicircle deflection plate 33 in that electric heating tube is staggered, be provided with regeneration gas discharge connection 13 on the cylindrical shell, cylindrical shell is connected by flange 14 with tube sheet, is provided with the junction box 15 of electric heating tube above tube sheet.Described energy-saving regeneration gas heater is horizontal, and electric heater one side is provided with regeneration gas inlet tube 17, is fixedly connected with by tube connector 20, flange 19 and securing member with the regeneration gas outlet 18 of preheater one side.Described gas product passage is the compressed nitrogen passage, compress choosing any one kind of them in dirty channel of nitrogen, the compressed oxygen passage.Described electric heater is vertical.Described electric heating tube is straight tube.
Embodiment three:
Referring to Fig. 3 (direction of arrow represents the flow direction of gas), among the figure, molecular sieve activating and regenerating heating system of the present utility model, comprise a gas product compressor 21, energy-saving regeneration gas heater 22 and gas product cooler 23, gas product compressor outlet place is equipped with gas product pipeline 24, the gas product pipeline passes energy-saving regeneration gas heater and gas product cooler in succession, the end of gas product pipeline is communicated with user's pipe network 25, place, gas product suction port of compressor is provided with gas product pipeline 26 and is communicated with air separation plant 27, be separately installed with regeneration gas pipeline 28 on the regeneration gas entrance sleeve 1 of described energy-saving regeneration gas heater and the regeneration gas discharge connection 13,29, the regeneration gas pipeline 28 that install at described regeneration gas entrance sleeve place is communicated with air separation plant 30, and the regeneration gas pipeline 29 that install at regeneration gas discharge connection place is communicated with molecular sieve adsorber 31.
Referring to Fig. 1, among the figure, described energy-saving regeneration gas heater is comprised of preheater and electric heater, described preheater is plate-fin heat exchanger, and formed by a regeneration gas passage and a gas product passage, the regeneration gas passage is by regeneration gas entrance sleeve 1, regeneration gas end socket 2, regeneration gas distributing fin 3, regeneration gas heat exchange fin 4 and regeneration gas discharge connection 5 form, the gas product passage is by gas product entrance sleeve 6, gas product distributing fin 7, gas product heat exchange fin 8 and product gas outlet are taken over 9 and are formed, described electric heater comprises and is fixed on the tube sheet 10 and places electric heating tube 12 in the cylindrical shell 11, be furnished with semicircle deflection plate 12 in that electric heating tube is staggered, be provided with regeneration gas discharge connection 13 on the cylindrical shell, cylindrical shell is connected by flange 14 with tube sheet, is provided with the junction box 15 of electric heating tube above tube sheet.Described energy-saving regeneration gas heater is vertical, and electric heater is positioned at the preheater top, and flange 16 and the direct-connected fixed installation of securing member are adopted in the adapter on electric heater and preheater top.Described gas product passage is the compressed nitrogen passage, compress choosing any one kind of them in dirty channel of nitrogen, the compressed oxygen passage.Described electric heater is vertical.Described electric heating tube is straight tube.
Embodiment four:
Referring to Fig. 3 (direction of arrow represents the flow direction of gas), among the figure, molecular sieve activating and regenerating heating system of the present utility model, comprise a gas product compressor 21, energy-saving regeneration gas heater 22 and gas product cooler 23, gas product compressor outlet place is equipped with gas product pipeline 24, the gas product pipeline passes energy-saving regeneration gas heater and gas product cooler in succession, the end of gas product pipeline is communicated with user's pipe network 25, place, gas product suction port of compressor is provided with gas product pipeline 26 and is communicated with air separation plant 27, be separately installed with regeneration gas pipeline 28 on the regeneration gas entrance sleeve 1 of described energy-saving regeneration gas heater and the regeneration gas discharge connection 13,29, the regeneration gas pipeline 28 that install at described regeneration gas entrance sleeve place is communicated with air separation plant 30, and the regeneration gas pipeline 29 that install at regeneration gas discharge connection place is communicated with molecular sieve adsorber 31.
Referring to Fig. 2, among the figure, described energy-saving regeneration gas heater is comprised of preheater and electric heater, described preheater is plate-fin heat exchanger, and formed by a regeneration gas passage and a gas product passage, the regeneration gas passage is by regeneration gas entrance sleeve 1, regeneration gas end socket 2, regeneration gas distributing fin 3, regeneration gas heat exchange fin 4 and regeneration gas discharge connection 5 form, the gas product passage is by gas product entrance sleeve 6, gas product distributing fin 7, gas product heat exchange fin 8 and product gas outlet are taken over 9 and are formed, described electric heater comprises and is fixed on the tube sheet 10 and places electric heating tube 12 in the cylindrical shell 11, be furnished with semicircle deflection plate 12 in that electric heating tube is staggered, be provided with regeneration gas discharge connection 13 on the cylindrical shell, cylindrical shell is connected by flange 14 with tube sheet, is provided with the junction box 15 of electric heating tube above tube sheet.Described energy-saving regeneration gas heater is horizontal, and electric heater one side is provided with regeneration gas inlet tube 17, is fixedly connected with by tube connector 20, flange 19 and securing member with the regeneration gas outlet 18 of preheater one side.Described gas product passage is the compressed nitrogen passage, compress choosing any one kind of them in dirty channel of nitrogen, the compressed oxygen passage.Described electric heater is vertical.Described electric heating tube is straight tube.
The above only is the schematic specific embodiment of the utility model; be not to limit scope of the present utility model; equivalent variations and modification that any those skilled in the art makes under the prerequisite that does not break away from the utility model design and principle; such as: the quantity that changes the interior regeneration gas passage of preheater and gas product passage; or the change electric heater is horizontal; or the change electric heating tube is U-shaped pipe; or the number of units of the interior gas product compressor of change molecular sieve activating and regenerating heating system; or the regeneration gas inlet tube of electric heater one side in the Horizontal energy-saving type regeneration gas heater; adopt flange and securing member direct-connected fixing etc. with the regeneration gas outlet of preheater one side, all should belong to the scope of the utility model protection.
Claims (10)
1. energy-saving regeneration gas heater, formed by preheater and electric heater, it is characterized in that: described preheater is plate-fin heat exchanger, and formed by a regeneration gas passage and a gas product passage at least, the regeneration gas passage is by the regeneration gas entrance sleeve, the regeneration gas end socket, the regeneration gas distributing fin, regeneration gas heat exchange fin and regeneration gas discharge connection form, the gas product passage is by the gas product entrance sleeve, the gas product distributing fin, gas product heat exchange fin and product gas outlet are taken over and are formed, described electric heater comprises and is fixed on the tube sheet and places electric heating tube in the cylindrical shell, be furnished with semicircle deflection plate in that electric heating tube is staggered, be provided with the regeneration gas discharge connection on the cylindrical shell, cylindrical shell is connected by flange with tube sheet, is provided with the junction box of electric heating tube above tube sheet.
2. energy-saving regeneration gas heater according to claim 1, it is characterized in that: described energy-saving regeneration gas heater is vertical, electric heater is positioned at the preheater top, adapter employing flange and the direct-connected fixed installation of securing member on electric heater and preheater top.
3. energy-saving regeneration gas heater according to claim 1, it is characterized in that: described energy-saving regeneration gas heater is horizontal, electric heater one side is provided with the regeneration gas inlet tube, direct-connected fixing by flange and securing member with the regeneration gas outlet of preheater one side, perhaps be fixedly connected with by tube connector, flange and securing member.
4. it is characterized in that according to claim 1 and 2 or 3 described energy-saving regeneration gas heaters: described gas product passage is the compressed nitrogen passage, compress choosing any one kind of them in dirty channel of nitrogen, the compressed oxygen passage.
5. according to claim 1 and 2 or 3 described energy-saving regeneration gas heaters, it is characterized in that: described electric heater is vertical or horizontal.
6. according to claim 1 and 2 or 3 described energy-saving regeneration gas heaters, it is characterized in that: described electric heating tube is straight tube or U-shaped pipe.
7. molecular sieve activating and regenerating heating system that contains energy-saving regeneration gas heater claimed in claim 1, it is characterized in that: comprise at least a gas product compressor, described energy-saving regeneration gas heater and gas product cooler, gas product compressor outlet place is equipped with the gas product pipeline, the gas product pipeline passes energy-saving regeneration gas heater and gas product cooler in succession, the end of gas product pipeline is communicated with user's pipe network, place, gas product suction port of compressor is provided with the gas product pipeline and is communicated with air separation plant, be separately installed with the regeneration gas pipeline on the regeneration gas entrance sleeve of described energy-saving regeneration gas heater and the regeneration gas discharge connection, the regeneration gas pipeline that install at described regeneration gas entrance sleeve place is communicated with air separation plant, and the regeneration gas pipeline that install at regeneration gas discharge connection place is communicated with molecular sieve adsorber.
8. molecular sieve activating and regenerating heating system according to claim 7, it is characterized in that: described gas product compressor is choosing any one kind of them in nitrogen compressor, dirty nitrogen compressor and the oxygen compressor.
9. molecular sieve activating and regenerating heating system according to claim 7, it is characterized in that: described energy-saving regeneration gas heater is vertical, electric heater is positioned at the preheater top, and flange and the direct-connected fixed installation of securing member are adopted in the adapter on electric heater and preheater top; Perhaps described energy-saving regeneration gas heater is horizontal, and electric heater one side is provided with the regeneration gas inlet tube, and is direct-connected fixing by flange and securing member with the regeneration gas outlet of preheater one side, perhaps is fixedly connected with by tube connector, flange and securing member.
10. molecular sieve activating and regenerating heating system according to claim 7, it is characterized in that: described gas product passage and gas product compressor are complementary, for the compressed nitrogen passage, compress a kind of accordingly in dirty channel of nitrogen, the compressed oxygen passage; Described electric heater is vertical or horizontal; Described electric heating tube is straight tube or U-shaped pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154602 CN203240858U (en) | 2013-04-01 | 2013-04-01 | Energy-saving regenerative gas heater and molecular sieve activating and regenerating heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154602 CN203240858U (en) | 2013-04-01 | 2013-04-01 | Energy-saving regenerative gas heater and molecular sieve activating and regenerating heating system |
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| Publication Number | Publication Date |
|---|---|
| CN203240858U true CN203240858U (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320154602 Expired - Fee Related CN203240858U (en) | 2013-04-01 | 2013-04-01 | Energy-saving regenerative gas heater and molecular sieve activating and regenerating heating system |
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| CN (1) | CN203240858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324688A (en) * | 2014-10-21 | 2015-02-04 | 杭州中泰深冷技术股份有限公司 | System and method for regenerating molecular sieve and saving energy by using low-pressure nitrogen |
| CN106823681A (en) * | 2017-04-28 | 2017-06-13 | 孔祥旭 | A kind of sieve purification system |
-
2013
- 2013-04-01 CN CN 201320154602 patent/CN203240858U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324688A (en) * | 2014-10-21 | 2015-02-04 | 杭州中泰深冷技术股份有限公司 | System and method for regenerating molecular sieve and saving energy by using low-pressure nitrogen |
| CN104324688B (en) * | 2014-10-21 | 2016-09-14 | 杭州中泰深冷技术股份有限公司 | One low-pressure nitrogen carries out regenerating molecular sieve energy conserving system and method |
| CN106823681A (en) * | 2017-04-28 | 2017-06-13 | 孔祥旭 | A kind of sieve purification system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20160401 |