CN108709439B - Vertical multi-source steam waste heat recovery energy-saving device - Google Patents
Vertical multi-source steam waste heat recovery energy-saving device Download PDFInfo
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- CN108709439B CN108709439B CN201810553602.8A CN201810553602A CN108709439B CN 108709439 B CN108709439 B CN 108709439B CN 201810553602 A CN201810553602 A CN 201810553602A CN 108709439 B CN108709439 B CN 108709439B
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- heat exchange
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a vertical multi-source steam waste heat recovery energy-saving device, and belongs to the technical field of energy conservation and environmental protection. Comprises an upper liquid storage chamber, a heat exchange chamber, a lower liquid storage chamber, a tube nest, a first clapboard, a second clapboard and the like. The waste steam and waste condensate water inlets with different pressures and temperatures are arranged according to the heat exchange gradient, so that the problem of integrated mixing and recovery of the steam and waste condensate water with different pressures is solved; the heat exchange chamber is divided into a plurality of communicated cavities by adopting the staggered arrangement of the plurality of layers of partition plates, so that the heat exchange path is prolonged, and the heat exchange efficiency is further improved. The separation of waste gas with higher density is realized, the treatment capacity of the waste gas is effectively reduced, and the environment-friendly and energy-saving effects are remarkable; as the auxiliary adjusting device of the MVR system, the MVR system is stable and efficient in operation, and the waste steam is utilized to the maximum extent. The integrated waste heat recovery system has the advantages of high integration level, simple structure and low equipment investment, and can be widely applied to waste heat recovery in the industries and fields of food, feed, chemical industry, pharmacy, sewage treatment and the like.
Description
Technical Field
The invention relates to a vertical waste heat recovery device, in particular to an energy-saving device which is provided with a plurality of heat sources and can exchange heat and recycle steam waste heat. Belongs to the technical field of energy conservation and environmental protection.
Background
A tubular heat exchanger, a plate heat exchanger and the like are common heat exchange equipment in the fields of chemical industry, food, pharmacy and the like and are used for preheating or cooling materials. In the application of waste heat recovery, waste steam is generally used as a heat medium, but in many evaporation concentration processes, waste steam with more than one pressure and temperature exists, and in many cases, the temperature of waste condensate water is higher, so that a certain waste heat recovery value also exists.
There are many problems caused by direct mixing of steam of different pressures and temperatures, such as the high pressure steam preventing the low pressure steam from being discharged. Therefore, the conventional technical scheme is that different heat exchange devices are adopted for steam with different pressures and temperatures, the occupied space is large, the equipment investment is high, the heated medium is not easy to realize temperature matching, and the problems of insufficient utilization of waste steam, influence on the production efficiency and the like can be caused.
In addition, in adopting the MVR technique to carry out vapor compression recycle, can produce the waste steam of more than 2 kinds of different pressures and temperatures on the same production line, according to the MVR system's control parameter difference in addition, the discharge capacity of different kind waste steam also can be different, need urgently have one kind can be regarded as the device that the surplus waste steam of MVR system was absorbed and supplementary MVR system adjusted, just can guarantee its stable, high-efficient operation.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a vertical multi-source steam waste heat recovery energy-saving device, which is used for solving the problems of integrated mixing and recovery of more than 2 kinds of waste steam with different pressures and temperatures and waste condensate water with waste heat recovery value, realizing timely separation and discharge of waste gas and reducing the discharge amount of the waste gas; simultaneously, still can regard as MVR system's auxiliary regulating device, make MVR system operation stable, high-efficient, realize exhaust steam's maximize utilization, have energy-concerving and environment-protective dual effect.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the vertical multi-source steam waste heat recovery energy-saving device comprises an upper liquid storage chamber (1), a heat exchange chamber (2), a lower liquid storage chamber (3), a tube array (4), a liquid suction pipe (5), a circulating pump (6), a liquid inlet (7), a liquid outlet (8), a first steam inlet (9), a second steam inlet (10), a condensate water inlet (11), a waste gas outlet (12) and a condensate water outlet (13).
The upper liquid storage chamber (1) is positioned at the upper part of the heat exchange chamber (2) and is mutually isolated, the lower liquid storage chamber (3) is positioned at the lower part of the heat exchange chamber (2) and is mutually isolated, and the upper liquid storage chamber (1) and the lower liquid storage chamber (3) are communicated through a tube nest (4) passing through the interior of the heat exchange chamber (2). Namely, the inner cavities of the upper liquid storage chamber (1), the tube nest (4) and the lower liquid storage chamber (3) form a communicated cavity, and the outer walls of the heat exchange chamber (2) and the tube nest (4) form a cavity which is isolated from each other.
A liquid suction pipe (5) extends into the upper liquid storage chamber (1) from the top, liquid in the upper liquid storage chamber (1) is sucked out under the driving of a circulating pump (6), the liquid is fed from a liquid inlet (7) at the bottom of the lower liquid storage chamber (3), and then the liquid is fed back to the upper liquid storage chamber (1) through a pipe (4), and a liquid outlet (8) is arranged on the side surface of the upper liquid storage chamber (1); thereby the liquid keeps circulating flow heat exchange, and the liquid outlet (8) is used for discharging the liquid.
The first steam inlet (9), the second steam inlet (10) and the condensed water inlet (11) are connected from one side of the heat exchange chamber (2), and the waste gas outlet (12) and the condensed water outlet (13) are connected from the other side of the heat exchange chamber (2).
Further, the heat exchanger comprises a first partition plate (14) and a second partition plate (15), the heat exchange chamber (2) is divided into 3 communicated spaces in a staggered mode, the upper portion of the separation space between the top of the heat exchange chamber (2) and the first partition plate (14) is connected with a first steam inlet (9), one side of the upper portion of the separation space between the bottom of the heat exchange chamber (2) and the second partition plate (15) is connected with a second steam inlet (10), the other side of the upper portion of the separation space is connected with a waste gas outlet (12), one side of the lower portion of the separation space is connected with a condensed water inlet (11), and the other side of the.
Further, including breathing mouth (16) and dust cover (17), breathing mouth (16) are inserted from the upper portion of last stock solution room (1), with last stock solution room (1) and outside intercommunication, and dust cover (17) are installed on the upper portion of breathing mouth (16). The breathing port (16) is used for keeping the pressure of the upper liquid storage chamber (1) balanced with the outside, and the dust cover (17) is used for preventing dust and foreign matters from falling.
Further, the liquid level meter (18) and the thermometer (19) are included, the liquid level meter (18) is installed on the upper liquid storage chamber (1) and used for measuring the real-time liquid level of the upper liquid storage chamber (1), the thermometer (19) is installed near the liquid outlet (8) of the upper liquid storage chamber (1) and used for measuring the real-time liquid temperature, and the liquid level meter (18) and the thermometer (19) have the functions of field display and data transmission. The liquid level and temperature change can be monitored by field operators conveniently, and the liquid level and temperature data can be transmitted to an automatic control system by the data transmission function, so that the automatic control of the production process is realized.
Further, the device comprises an insulating layer (20) which is wrapped on the outer wall of the device. The external heat dissipation is reduced, energy is saved, and meanwhile, a good working environment is created.
Further, the device comprises a liquid replenishing pump (21) which replenishes external liquid from the liquid inlet (7) into the lower liquid storage chamber (3). When the liquid in the upper liquid storage chamber (1) is insufficient, liquid supplementing is carried out.
The invention has the beneficial effects that:
1. because the outward heat exchange process of saturated steam can cause the reduction of pressure and temperature, the shell-and-tube heat exchange of the heat exchange chamber is utilized, the inlets of waste steam with different pressures and temperatures are arranged according to the flow direction of heated liquid and the heat exchange gradient, so that different waste steam automatically reaches pressure balance, and waste condensate water is also subjected to heat exchange utilization, the problems of integrated mixing and recovery of the steam with different pressures and the waste condensate water are solved, meanwhile, the heat exchange efficiency is also ensured, the maximum recovery and utilization of the waste steam are realized, and the energy-saving effect is obvious; the integrated control system has the advantages of high integration level, simple structure and low equipment investment.
2. The waste heat recovery is carried out, simultaneously, the separation of waste gas with higher density is realized, and the waste gas is discharged and treated through a waste gas outlet at the lower part of the heat exchange chamber, so that the treatment capacity of the waste gas is effectively reduced, and the remarkable environment-friendly effect is achieved; meanwhile, waste gas is discharged in time, so that the heat exchange efficiency of the tube array can be effectively improved, and the energy-saving effect is remarkable.
3. Adopt multilayer baffle staggered arrangement to separate into the cavity of a plurality of intercommunications with the heat transfer room, prolong the heat transfer route of the exhaust steam of different pressure and temperature, help the mixture of multiple steam and the balance of pressure, further improved heat exchange efficiency.
4. When using with the cooperation of MVR system, still can regard as the auxiliary regulating device of MVR system, make the operation of MVR system stable, high-efficient, realize the maximize ground utilization of exhaust steam.
Drawings
FIG. 1: the structure schematic diagram of the vertical multi-source steam waste heat recovery energy-saving device.
In the figure: 1-upper liquid storage chamber, 2-heat exchange chamber, 3-lower liquid storage chamber, 4-tube array, 5-liquid suction pipe, 6-circulating pump, 7-liquid inlet, 8-liquid outlet, 9-first steam inlet, 10-second steam inlet, 11-condensed water inlet, 12-waste gas outlet, 13-condensed water outlet, 14-first clapboard, 12-second clapboard, 16-breathing port, 17-dust cover, 18-liquid level meter, 19-thermometer, 20-heat preservation layer and 21-liquid supplement pump. .
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a vertical multi-source steam waste heat recovery energy-saving device. In fig. 1, the device comprises an upper liquid storage chamber (1), a heat exchange chamber (2), a lower liquid storage chamber (3), a tube array (4), a liquid suction pipe (5), a circulating pump (6), a liquid inlet (7), a liquid outlet (8), a first steam inlet (9), a second steam inlet (10), a condensed water inlet (11), a waste gas outlet (12), a condensed water outlet (13), a first partition plate (14), a second partition plate (15), a breathing port (16), a dust cover (17), a liquid level meter (18), a thermometer (19), a heat preservation layer (20) and a liquid supplementing pump (21).
The heated liquid is generally purified water, the liquid is replenished through a liquid inlet (7) at the bottom of the lower liquid storage chamber (3) by a liquid replenishing pump (21), and when the height of the purified water reaches the position of a liquid suction pipe (5) of the upper liquid storage chamber (1), the purified water forms continuous circulation from bottom to top among the upper liquid storage chamber (1), the tube array (4) and the lower liquid storage chamber (3) under the drive of a circulating pump (6).
In fig. 1, waste saturated steam with high pressure and high temperature enters the heat exchange chamber (2) from the first steam inlet (9), a waste saturated steam with low pressure and low temperature second steam inlet (10), and waste condensate water enters the condensate water inlet (11) respectively, and exchanges heat with circulating purified water through the tubes (4) respectively. Waste saturated steam with high pressure and temperature is changed into waste saturated steam and waste condensate water with low pressure and temperature after being wound by the first clapboard (14) for heat exchange, so that the waste saturated steam with different pressures and temperatures is mixed; the mixed waste saturated steam continuously passes through the tubes (4) in the space below the second partition plate (15) to exchange heat with the circulating purified water. Waste condensate water generated after heat exchange sinks to the bottom to continuously exchange heat with purified water with lower temperature, and then is discharged through a condensate water outlet (13); the non-condensable gas is gathered at the upper part of condensed water at the bottom due to higher density and is timely discharged and treated through a waste gas outlet (12).
In fig. 1, purified water in the tubes (4) circulates from bottom to top, and is subjected to gradient heat exchange with waste condensate water, waste saturated steam with low pressure and temperature, and waste saturated steam with high pressure and temperature in sequence, and the temperature of the purified water is gradually increased; when the temperature reaches the usable temperature or is too high, the mixture is discharged through a liquid outlet (8) for utilization.
In addition, when the device is matched with an MVR system for use, the device can also be used as an auxiliary adjusting device of the MVR system. Waste saturated steam after MVR compression is connected into a first steam inlet (9), uncompressed waste saturated steam is connected into a second steam inlet (10) and condensed water is connected into a condensed water inlet (11), so that residual waste heat in the working process of the MVR system can be fully recycled, the automatic parameter adjustment of the MVR system can be assisted, the MVR system is stable and efficient in operation, and waste steam is maximally utilized.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Vertical multisource steam waste heat recovery economizer, its characterized in that: comprises an upper liquid storage chamber (1), a heat exchange chamber (2), a lower liquid storage chamber (3), a tube array (4), a liquid suction pipe (5), a circulating pump (6), a liquid inlet (7), a liquid outlet (8), a first steam inlet (9), a second steam inlet (10), a condensed water inlet (11), a waste gas outlet (12) and a condensed water outlet (13);
the upper liquid storage chamber (1) is positioned at the upper part of the heat exchange chamber (2) and is isolated from the heat exchange chamber (2), the lower liquid storage chamber (3) is positioned at the lower part of the heat exchange chamber (2) and is isolated from the heat exchange chamber, and the upper liquid storage chamber (1) and the lower liquid storage chamber (3) are communicated through a tube nest (4) penetrating through the interior of the heat exchange chamber (2);
a liquid suction pipe (5) extends into the upper liquid storage chamber (1) from the top, liquid in the upper liquid storage chamber (1) is sucked out under the driving of a circulating pump (6), the liquid is fed from a liquid inlet (7) at the bottom of the lower liquid storage chamber (3), and then the liquid is fed back to the upper liquid storage chamber (1) through a pipe (4), and a liquid outlet (8) is arranged on the side surface of the upper liquid storage chamber (1);
a first steam inlet (9), a second steam inlet (10) and a condensed water inlet (11) are connected from one side of the heat exchange chamber (2), and a waste gas outlet (12) and a condensed water outlet (13) are connected from the other side of the heat exchange chamber (2);
the heat exchange device comprises a first partition plate (14) and a second partition plate (15), a heat exchange chamber (2) is divided into 3 communicated spaces in a staggered mode, the upper portion of a separation space between the top of the heat exchange chamber (2) and the first partition plate (14) is connected into a first steam inlet (9), one side of the upper portion of the separation space between the bottom of the heat exchange chamber (2) and the second partition plate (15) is connected into a second steam inlet (10), the other side of the upper portion of the separation space is connected into a waste gas outlet (12), one side of the lower portion of the separation space is connected into a condensed water inlet (11), and the other.
2. The vertical multi-source steam waste heat recovery energy-saving device according to claim 1, characterized in that: including breathing mouth (16) and dust cover (17), breathing mouth (16) are followed the upper portion access of upper liquid storage chamber (1), will go up liquid storage chamber (1) and outside intercommunication, and the upper portion at breathing mouth (16) is installed in dust cover (17).
3. The vertical multi-source steam waste heat recovery energy-saving device according to claim 1, characterized in that: including level gauge (18) and thermometer (19), level gauge (18) are installed on last stock solution room (1), measure the real-time liquid level of stock solution room (1) in, and thermometer (19) are installed near liquid outlet (8) of last stock solution room (1), measure the real-time liquid temperature of this department, and level gauge (18) and thermometer (19) all have the transmission function of on-the-spot demonstration and data.
4. The vertical multi-source steam waste heat recovery energy-saving device according to claim 1, characterized in that: comprises an insulating layer (20) which is wrapped on the outer wall of the device.
5. The vertical multi-source steam waste heat recovery energy-saving device according to claim 1, characterized in that: comprises a liquid replenishing pump (21) for replenishing external liquid into the lower liquid storage chamber (3) from the liquid inlet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553602.8A CN108709439B (en) | 2018-06-01 | 2018-06-01 | Vertical multi-source steam waste heat recovery energy-saving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553602.8A CN108709439B (en) | 2018-06-01 | 2018-06-01 | Vertical multi-source steam waste heat recovery energy-saving device |
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| Publication Number | Publication Date |
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| CN108709439A CN108709439A (en) | 2018-10-26 |
| CN108709439B true CN108709439B (en) | 2020-01-03 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210022Y (en) * | 2008-03-29 | 2009-03-18 | 罗伟强 | Heat exchanger |
| CN203518797U (en) * | 2013-08-01 | 2014-04-02 | 中国石油天然气股份有限公司 | Steam condensate waste heat recovery device |
| CN204165416U (en) * | 2014-10-22 | 2015-02-18 | 安徽美东生物材料有限公司 | A kind of stram condenser |
| CN205580227U (en) * | 2016-05-06 | 2016-09-14 | 淄博瑞能热电科技有限公司 | Step negative pressure formula condenser |
| EP3095497A1 (en) * | 2011-05-13 | 2016-11-23 | FrieslandCampina Nederland B.V. | Evaporator system |
| CN205954320U (en) * | 2016-07-27 | 2017-02-15 | 刘江坚 | Well model machine multi - stage heat exchange device |
-
2018
- 2018-06-01 CN CN201810553602.8A patent/CN108709439B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210022Y (en) * | 2008-03-29 | 2009-03-18 | 罗伟强 | Heat exchanger |
| EP3095497A1 (en) * | 2011-05-13 | 2016-11-23 | FrieslandCampina Nederland B.V. | Evaporator system |
| CN203518797U (en) * | 2013-08-01 | 2014-04-02 | 中国石油天然气股份有限公司 | Steam condensate waste heat recovery device |
| CN204165416U (en) * | 2014-10-22 | 2015-02-18 | 安徽美东生物材料有限公司 | A kind of stram condenser |
| CN205580227U (en) * | 2016-05-06 | 2016-09-14 | 淄博瑞能热电科技有限公司 | Step negative pressure formula condenser |
| CN205954320U (en) * | 2016-07-27 | 2017-02-15 | 刘江坚 | Well model machine multi - stage heat exchange device |
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| CN108709439A (en) | 2018-10-26 |
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