CN210483999U - Air compressor's full recovery system of waste heat - Google Patents
Air compressor's full recovery system of waste heat Download PDFInfo
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- CN210483999U CN210483999U CN201921101677.9U CN201921101677U CN210483999U CN 210483999 U CN210483999 U CN 210483999U CN 201921101677 U CN201921101677 U CN 201921101677U CN 210483999 U CN210483999 U CN 210483999U
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Abstract
The utility model provides an air compressor's full recovery system of waste heat, include: the first valve is connected with the outlet ends of the first cooling channel and the second cooling channel; the second valve is connected with the outlet end of the first recycled water inlet channel; the water pump is connected with the outlet end of the second valve; the first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel; a third valve connected between the outlet end of the first heat exchange channel and the inlet end of the first cooling channel; a fourth valve connected between the outlet end of the first heat exchange channel and the inlet end of the second cooling channel; the fifth valve is connected between the outlet end of the first circulating water inlet channel and the inlet end of the second heat exchange channel; the inlet end of the sixth valve is connected with the outlet end of the second heat exchange channel; the second heat exchanger is provided with a third heat exchange channel and a fourth heat exchange channel; and the eleventh and the tenth valves are connected with the inlet end and the outlet end of the fourth heat exchange channel. The utility model discloses can retrieve the heat that the compressor produced, improve energy utilization and rate, reduce the energy waste and carbon and discharge.
Description
Technical Field
The utility model relates to an energy recuperation field especially relates to an air compressor's full recovery system of waste heat.
Background
An air compressor (also called as an air compressor or a compressor) is a device for compressing gas and is widely applied to the fields of machinery manufacturing, steel, metallurgy, shipbuilding, textile, electronics, chemical industry, petroleum, mines, light industry, food, medicine and the like. The air compressor can produce a large amount of heats of compression at the operation in-process, uses external circulating water system to cool down at present. For example, as shown in fig. 1, a three-stage air compressor system 100 is shown, which comprises a first-stage compressor (i.e. a first compressor 101), a first-stage cooler (i.e. a first cooler 102), a second-stage compressor (i.e. a second compressor 103), a second-stage cooler (i.e. a second cooler 104, a third-stage compressor 105) and a third-stage cooler (i.e. a third cooler 106) which are sequentially in gas communication, wherein the three coolers 102, 104 and 106 respectively have fluid passages, and the inlet end and the outlet end of each fluid passage are respectively connected with an external circulating water system to cool heat generated by the compressors 101, 103 and 105 through the external circulating water system, so that the heat is completely discharged into the atmosphere, thereby not only wasting energy but also accelerating the greenhouse effect.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to provide an air compressor's waste heat recovery system entirely to under the prerequisite that does not influence the normal work of compressor, retrieve the heat that the compressor produced, thereby improve energy utilization and rate, reduce the energy waste and carbon and discharge.
In order to achieve the above object, the utility model provides an air compressor's full recovery system of waste heat for retrieve the heat of air compressor system, this air compressor system is including the first compressor, first cooler, second compressor, second cooler, third compressor and the third cooler of gaseous intercommunication in proper order, and wherein first cooler has first cooling channel, and the second cooler has second cooling channel, and the third cooler has third cooling channel, and wherein, this full recovery system of waste heat includes:
the inlet end of the first valve is connected with the outlet end of the first cooling channel and the outlet end of the second cooling channel, and the outlet end of the first valve is connected with the inlet end of the first recycled water outlet channel;
a second valve, the inlet end of which is connected with the outlet end of the first recycled water inlet channel;
a water pump, the inlet end of which is connected with the outlet end of the second valve;
the first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel for exchanging heat, and the inlet end of the first heat exchange channel is connected with the outlet end of the water pump;
a third valve having an inlet end connected to the outlet end of the first heat exchange channel and an outlet end connected to the inlet end of the first cooling channel;
a fourth valve having an inlet end connected to the outlet end of the first heat exchange channel and an outlet end connected to the inlet end of the second cooling channel;
the inlet end of the fifth valve is connected with the outlet end of the first circulating water inlet channel, and the outlet end of the fifth valve is connected with the inlet end of the second heat exchange channel;
the inlet end of the sixth valve is connected with the outlet end of the second heat exchange channel, and the outlet end of the sixth valve is connected with the inlet end of the first circulating water outlet channel;
a second heat exchanger having a third heat exchange channel and a fourth heat exchange channel for exchanging heat, an inlet end of the third heat exchange channel being connected to a gas outlet end of the third cooler, an outlet end of the third heat exchange channel being in communication with the outside atmosphere;
an inlet end of the eleventh valve is connected with an outlet end of the second recovered water inlet channel, and an outlet end of the eleventh valve is connected with an inlet end of the fourth heat exchange channel;
and the inlet end of the twelfth valve is connected with the outlet end of the fourth heat exchange channel, and the outlet end of the twelfth valve is connected with the inlet end of the second recovered water outlet channel.
In an embodiment of the present invention, the waste heat recovery system further includes:
a seventh valve connected between the outlet end of the first heat exchange channel and the inlet end of the fifth valve;
an eighth valve connected between the inlet end of the first valve and the outlet end of the sixth valve.
In an embodiment of the present invention, the waste heat recovery system further includes:
a ninth valve connected between an inlet end of the fifth valve and an outlet end of the first circulating water inlet passage;
and the tenth valve is connected between the outlet end of the sixth valve and the inlet end of the first circulating water outlet channel.
In one embodiment of the present invention, the first valve, the second valve, the fifth valve, the eleventh valve, and the tenth valve are on-off valves, and the third valve, the fourth valve, and the sixth valve are regulating valves.
In an embodiment of the invention, the seventh valve and the eighth valve are on-off valves.
In an embodiment of the invention, the ninth valve and the tenth valve are on-off valves.
In an embodiment of the present invention, the first heat exchanger and the second heat exchanger are plate heat exchangers.
In an embodiment of the present invention, the inlet end of the third cooling channel is connected to the outlet end of the second circulating water inlet channel through a thirteenth valve, and the outlet end of the third cooling channel is connected to the inlet end of the second circulating water outlet channel through a fourteenth valve.
In an embodiment of the present invention, the waste heat recovery system further comprises a combination of one or more of the following components:
a first thermometer connected to an inlet end of the first cooling channel;
a second thermometer connected to an outlet end of the first cooling channel;
a third thermometer connected to an inlet end of the second cooling channel; a fourth thermometer connected to an outlet end of the second cooling channel.
In an embodiment of the present invention, the waste heat recovery system further includes: and the flow meter is connected between the outlet end of the second heat exchange channel and the inlet end of the sixth valve.
By adopting the technical scheme, the utility model discloses following beneficial effect has:
the utility model can convey the water flow flowing in the first recycled water inlet channel to the first heat exchanger for temperature regulation through the water pump, and the water flow after temperature regulation respectively flows through the first cooling channel and the second cooling channel through the third valve and the fourth valve so as to absorb the heat generated by the first compressor and the second compressor; simultaneously, the rivers that flow through in the second heat exchanger still can absorb the heat that the third compressor produced, and the absorbed heat can be with rivers heating, finally carry to outside recovery water and utilize the system to carry out recycle to under the prerequisite of guaranteeing air compressor system normal operating, retrieve the heat that the compressor produced, thereby improve energy utilization and rate, reduce energy waste and carbon and discharge.
Drawings
FIG. 1 is a schematic diagram of a prior art air compressor system;
fig. 2 is a schematic diagram of an embodiment of the waste heat total recovery system of the air compressor of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides an air compressor's waste heat recovery system for retrieve the heat that air compressor system 100 produced. As shown in fig. 2, in the present embodiment, the air compressor system 100 includes a first compressor 101, a first cooler 102, a second compressor 103, a second cooler 104, a third compressor 105, and a third cooler 106 in sequential gas communication. Wherein the first cooler 102 has a first gas passage and a first cooling passage, the second cooler 104 has a second gas passage and a second cooling passage, and the third cooler 106 has a third gas passage and a third cooling passage. The inlet end of the first compressor 101 is connected to the atmosphere, the outlet end of the first compressor 101 is connected to the inlet of the first gas channel, the inlet end of the second compressor 103 is connected to the outlet of the first gas channel, the outlet end of the second compressor 103 is connected to the inlet of the second gas channel, the inlet end of the third compressor 105 is connected to the outlet of the second gas channel, and the outlet end of the third compressor 105 is connected to the atmosphere. The first, second and third compressors 101, 103, 105 of the present embodiment may be, for example, centrifugal compressors.
The utility model discloses a waste heat recovery system entirely mainly includes following subassembly: a first valve 201, a second valve 202, a third valve 203, a fourth valve 204, a fifth valve 205, a sixth valve 206, a seventh valve 207, an eighth valve 208, a ninth valve 209, a tenth valve 210, an eleventh valve 215, a twelfth valve 216, a thirteenth valve 218, a fourteenth valve 219, a water pump 215, a first heat exchanger 216, and a second heat exchanger 217. The connection relationship between the components is described in detail below:
the inlet end of the first valve 201 is connected to both the outlet end of the first cooling channel and the outlet end of the second cooling channel, and the outlet end of the first valve 201 is connected to the inlet end of the first recycled water outlet channel 218. The outlet end of the first recycled water outlet passage 218 is connected to an external first recycled water utilization system.
The inlet end of the second valve 202 is connected to the outlet end of a first recycled water inlet 219, the inlet end of the first recycled water inlet 219 being connectable to city water mains.
The inlet end of the water pump 215 is connected to the outlet end of the second valve 202.
The first heat exchanger 216 has a first heat exchange path and a second heat exchange path for exchanging heat, and an inlet end of the first heat exchange path is connected to an outlet end of the water pump 215. In the present embodiment, the first heat exchanger 216 and the second heat exchanger may be plate heat exchangers, for example.
The inlet end of third valve 203 is connected to the outlet end of the first heat exchange channel and the outlet end of third valve 203 is connected to the inlet end of the first cooling channel.
The inlet end of the fourth valve 204 is connected to the outlet end of the first heat exchange channel and the outlet end of the fourth valve 204 is connected to the inlet end of the second cooling channel.
The inlet end of the fifth valve 205 is connected to the outlet end of the first circulating water inlet passage 220, and the outlet end of the fifth valve 205 is connected to the inlet end of the second heat exchange passage. Wherein, the inlet end of the first circulating water inlet passage 220 is connected with the outlet end of the external first circulating water system.
The inlet end of the sixth valve 206 is connected with the outlet end of the second heat exchange channel, and the outlet end of the fifth valve 205 is connected with the inlet end of the 217 first circulating water outlet channel 221. Wherein, the outlet end of the first circulating water outlet channel 221 is connected with the inlet end of the first circulating water system.
A seventh valve 207 is connected between the outlet end of the first heat exchange channel and the inlet end of the fifth valve 205.
An eighth valve 208 is connected between the inlet end of the first valve 201 and the outlet end of the sixth valve 206.
A ninth valve 209 is connected between the inlet end of the fifth valve 205 and the outlet end of the first circulating water inlet passage 220.
The tenth valve 210 is connected between the outlet end of the sixth valve 206 and the inlet end of the first circulating water outlet passage 221.
The second heat exchanger 217 has a third heat exchange channel and a fourth heat exchange channel for exchanging heat, the inlet end of the third heat exchange channel is connected to the gas outlet end of the third cooler 106, and the outlet end of the third heat exchange channel is in communication with the outside atmosphere.
The inlet end of the eleventh valve 211 is connected to the outlet end of the second recovered water inlet channel 222, and the outlet end of the eleventh valve 211 is connected to the inlet end of the fourth heat exchange channel.
An inlet end of the twelfth valve 212 is connected with an outlet end of the fourth heat exchange channel, an outlet end of the twelfth valve 212 is connected with an inlet end of the second recovered water outlet channel 213, and an outlet end of the first recovered water outlet channel 223 is connected with an external second recovered water utilization system.
In this embodiment, the inlet end of the third cooling passage is connected to the outlet end of the second circulating water inlet passage 224 through a tenth valve 213. The outlet end of the third cooling channel is connected with the inlet end of a second circulating water outlet channel 225. The inlet end of the second circulating water inlet channel 224 and the outlet end of the second circulating water inlet channel 225 are respectively connected with the outlet end and the inlet end of an external second circulating water system.
Among them, the first valve 201, the second valve 202, the fifth valve 205, the seventh valve 207, the eighth valve 208, the ninth valve 209, the tenth valve 210, the eleventh valve 211, the twelfth valve 212, the thirteenth valve 213, and the fourteenth valve are preferably on-off valves, and the third valve 203, the fourth valve 204, and the sixth valve 206 are preferably regulating valves. The on-off valve is different from the regulating valve in that the on-off valve has no special requirements on the flow characteristics except for opening and closing, and the regulating valve has higher requirements on the flow characteristics in the whole process from opening to closing; the switch valve has higher requirements on the switching speed and the leakage amount than the regulating valve, and the regulating valve has higher requirements on the opening stability between opening and closing than the switch valve.
Note that the direction indicated by the arrow in fig. 2 is the flow direction of the fluid.
The utility model discloses waste heat recovery system's heat recovery process as follows:
first, the first valve 201, the second valve 202, the fifth valve 205, the sixth valve 206, the ninth valve 209, the tenth valve 210, the eleventh valve 211, and the twelfth valve 212 are opened, while the seventh valve 207 and the eighth valve 208, and the thirteenth valve 213 and the fourteenth valve 214 are closed.
Then, the water pump 215 is activated to deliver the water flowing in the first recovered water inlet channel 219 to the first heat exchange channel through the water pump 215, then flow through the first cooling channel and the second cooling channel via the third valve 203 and the fourth valve 204, respectively, finally flow into the first recovered water outlet channel 218 via the first valve 201, and deliver the water to the external first recovered water utilization system via the first recovered water outlet channel 218, thereby establishing a first water recovery flow path.
Then, the air compressor system 100 is started, and at this time, the water flow flowing through the first water recovery flow path is heated by the heat generated by the first compressor 101 and the second compressor 103, and finally flows into the first recovered water utilization system to be recovered. Meanwhile, the water flow in the second water recovery flow path formed by the second recovered water inlet passage 222, the eleventh valve 211, the fourth heat exchange passage, the tenth valve, and the second recovered water outlet passage 223 is heated by the heat generated by the third compressor 105, and finally flows into the second recovered water utilization system for recovery. For example, the two recovered water utilization systems may use the recovered hot water for heating, bathing, a canteen, boiler makeup preheating, reverse osmosis pure water production heat, and the like.
It should be noted that, in the heat recovery process, the outlet water temperature of the coolers 102, 104, 106 needs to be increased for recycling, but the outlet water temperature of the coolers 102, 104, 106 is increased, which causes the outlet air temperature of the coolers 102, 104, 106 to be also increased. In the present application, a higher outlet temperature for the first cooler 102 results in a higher inlet temperature for the second compressor 103, and a higher outlet temperature for the second cooler 104 results in a higher inlet temperature for the third compressor 105. When the inlet air temperature of the compressor is too high, compressor surge may result.
In order to prevent surge, the utility model provides a by the second heat transfer passageway, the fifth valve 205, the sixth valve 206, first circulating water inlet passage 220, the first water cooling flow path that first circulating water exhalant canal and outside first circulating water system constitute, through adjusting sixth valve 206, can adjust the temperature of intaking of first cooler 102 and second cooler 104, take away the inlet air temperature in first cooler 102 and the second cooler 104 fast, can avoid the second, third compressor 103, 105 take place surge. Furthermore, the present invention further provides a third valve 203 and a fourth valve 204, which can control the outlet temperature of the first cooler 102 and the second cooler 104 by adjusting the third valve 203 and the fourth valve 204.
According to the experiment test, adopt the utility model discloses a when waste heat recovery system carries out heat recovery, as long as the temperature of intaking of control first cooler 102 and second cooler 104 is no longer than 35 ℃, and the temperature of leaving water is no longer than 55 ℃, second compressor 103 and third compressor 105 just can normal operating, can not take place surge.
Referring again to fig. 2, when the air compressor system 100 is not stopped but heat recovery is no longer required, the seventh and eighth valves 207 and 208 are opened while the water pump 215, the first valve 201, the second valve 202, the fifth valve 205, and the sixth valve 206 are closed, so that water provided by the external first circulating water system can enter the first and second coolers 102 and 104 through the ninth, seventh, third, and fourth valves 209, 207, 203, and 204 and then flow back to the external first circulating water system through the eighth and tenth valves 208 and 210, thereby cooling heat generated by the first and second compressors 101 and 103; meanwhile, the thirteenth valve 213 and the fourteenth valve 214 are opened, and the eleventh valve 211 and the twelfth valve 212 are closed, so that water provided from the external second circulating water system can enter the third cooler 106 through the thirteenth valve 213 and flow back to the external second circulating water system through the fourteenth valve 214, thereby cooling the heat generated from the third compressor 105.
According to the specific embodiment of fig. 2, the waste heat recovery system of the present invention further comprises any one or more of the following four components (four are shown in fig. 2): a first thermometer 226 connected to the inlet end of the first cooling channel; a second thermometer 227 connected to the outlet end of the first cooling channel; a third thermometer 228 connected to the inlet end of the second cooling channel; and/or a fourth thermometer 229 connected to the outlet end of the second cooling channel. Through the arrangement of the thermometers, the inlet water temperature and the outlet water temperature of the first cooler 102 and the second cooler 104 can be monitored, so that the waste heat full recovery system can be protected from normal operation.
Furthermore, the utility model discloses a waste heat recovery system entirely still includes: a flow meter 230, connected between the outlet end of the second heat exchange path and the inlet end of the sixth valve 206, facilitates fine adjustment of the water flow rate in the second heat exchange path to regulate the inlet water temperature of the first cooler 102 and the second cooler 104.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that various changes, modifications, substitutions and alterations can be made therein by those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides an air compressor's waste heat recovery system entirely for retrieve the heat of air compressor system, this air compressor system includes the first compressor, first cooler, second compressor, second cooler, third compressor and the third cooler of gaseous intercommunication in proper order, and wherein first cooler has first cooling channel, and the second cooler has second cooling channel, and the third cooler has third cooling channel, and its characterized in that, this waste heat recovery system entirely includes:
the inlet end of the first valve is connected with the outlet end of the first cooling channel and the outlet end of the second cooling channel, and the outlet end of the first valve is connected with the inlet end of the first recycled water outlet channel;
a second valve, the inlet end of which is connected with the outlet end of the first recycled water inlet channel;
a water pump, the inlet end of which is connected with the outlet end of the second valve;
the first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel for exchanging heat, and the inlet end of the first heat exchange channel is connected with the outlet end of the water pump;
a third valve having an inlet end connected to the outlet end of the first heat exchange channel and an outlet end connected to the inlet end of the first cooling channel;
a fourth valve having an inlet end connected to the outlet end of the first heat exchange channel and an outlet end connected to the inlet end of the second cooling channel;
the inlet end of the fifth valve is connected with the outlet end of the first circulating water inlet channel, and the outlet end of the fifth valve is connected with the inlet end of the second heat exchange channel; and
the inlet end of the sixth valve is connected with the outlet end of the second heat exchange channel, and the outlet end of the sixth valve is connected with the inlet end of the first circulating water outlet channel;
a second heat exchanger having a third heat exchange channel and a fourth heat exchange channel for exchanging heat, an inlet end of the third heat exchange channel being connected to a gas outlet end of the third cooler, an outlet end of the third heat exchange channel being in communication with the outside atmosphere;
an inlet end of the eleventh valve is connected with an outlet end of the second recovered water inlet channel, and an outlet end of the eleventh valve is connected with an inlet end of the fourth heat exchange channel;
and the inlet end of the twelfth valve is connected with the outlet end of the fourth heat exchange channel, and the outlet end of the twelfth valve is connected with the inlet end of the second recovered water outlet channel.
2. The waste heat recovery system of an air compressor according to claim 1, further comprising:
a seventh valve connected between the outlet end of the first heat exchange channel and the inlet end of the fifth valve;
an eighth valve connected between the inlet end of the first valve and the outlet end of the sixth valve.
3. The waste heat recovery system of an air compressor according to claim 1, further comprising:
a ninth valve connected between an inlet end of the fifth valve and an outlet end of the first circulating water inlet passage;
and the tenth valve is connected between the outlet end of the sixth valve and the inlet end of the first circulating water outlet channel.
4. The system for recovering all waste heat from an air compressor according to claim 1, wherein the first, second, fifth, eleventh and tenth valves are on-off valves, and the third, fourth and sixth valves are regulating valves.
5. The system for recovering all the waste heat of the air compressor as claimed in claim 2, wherein the seventh valve and the eighth valve are on-off valves.
6. The system for recovering all the waste heat of the air compressor as claimed in claim 3, wherein the ninth valve and the tenth valve are on-off valves.
7. The system for recycling waste heat of the air compressor as claimed in claim 1, wherein the first heat exchanger and the second heat exchanger are plate heat exchangers.
8. The system for recycling waste heat of an air compressor as claimed in claim 1, wherein the inlet end of the third cooling channel is connected to the outlet end of the second circulating water inlet channel through a thirteenth valve, and the outlet end of the third cooling channel is connected to the inlet end of the second circulating water outlet channel through a fourteenth valve.
9. The system of claim 1, further comprising a combination of one or more of the following components:
a first thermometer connected to an inlet end of the first cooling channel;
a second thermometer connected to an outlet end of the first cooling channel;
a third thermometer connected to an inlet end of the second cooling channel; and
a fourth thermometer connected to an outlet end of the second cooling channel.
10. The waste heat recovery system of an air compressor according to claim 1, further comprising:
and the flow meter is connected between the outlet end of the second heat exchange channel and the inlet end of the sixth valve.
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| CN201921101677.9U CN210483999U (en) | 2019-07-15 | 2019-07-15 | Air compressor's full recovery system of waste heat |
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| CN201921101677.9U CN210483999U (en) | 2019-07-15 | 2019-07-15 | Air compressor's full recovery system of waste heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242545A (en) * | 2019-07-15 | 2019-09-17 | 上海赛捷能源科技有限公司 | A kind of full recovery system of the waste heat of air compressor |
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2019
- 2019-07-15 CN CN201921101677.9U patent/CN210483999U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242545A (en) * | 2019-07-15 | 2019-09-17 | 上海赛捷能源科技有限公司 | A kind of full recovery system of the waste heat of air compressor |
| CN110242545B (en) * | 2019-07-15 | 2024-05-03 | 上海赛捷能源科技有限公司 | Full recovery system of waste heat of air compressor |
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