CN210218031U - One-stage heat recovery system of air compressor - Google Patents
One-stage heat recovery system of air compressor Download PDFInfo
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- CN210218031U CN210218031U CN201921105075.0U CN201921105075U CN210218031U CN 210218031 U CN210218031 U CN 210218031U CN 201921105075 U CN201921105075 U CN 201921105075U CN 210218031 U CN210218031 U CN 210218031U
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Abstract
The utility model provides an air compressor's one-level heat recovery system, include: the inlet end of the first valve is connected with the outlet end of the first cooling channel, and the outlet end of the first valve is connected with the inlet end of the recovered water outlet channel; the second valve is connected with the outlet end of the recovered water inlet channel; a water pump, the inlet end of which is connected with the outlet end of the second valve; the heat exchanger is provided with a first heat exchange channel and a second heat exchange channel, 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; the inlet end of the fourth valve is connected with the outlet end of the first circulating water inlet channel, and the outlet end of the fourth valve is connected with the inlet end of the second heat exchange channel; and the inlet end of the fifth valve is connected with the outlet end of the second heat exchange channel. The utility model discloses can retrieve the heat that the one-level recovered 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 one-level heat recovery system.
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
An object of the utility model is to the not enough of above-mentioned prior art, the utility model is to provide an air compressor's one-level heat recovery system to under the prerequisite that does not influence the normal work of compressor, retrieve the heat that the one-level compressor produced, thereby improve energy utilization and rate, reduce the energy waste and carbon and discharge.
In order to achieve the above object, the present invention provides an air compressor's one-stage heat recovery system for recovering the heat of an air compressor system, the air compressor system comprises a first compressor, a first cooler, a second compressor, a second cooler, a third compressor and a third cooler which are sequentially in gas communication, wherein the first cooler has a first cooling channel, the second cooler has a second cooling channel, the third cooler has a third cooling channel, wherein the one-stage heat recovery system comprises:
the inlet end of the first valve is connected with the outlet end of the first cooling channel, and the outlet end of the first valve is connected with the inlet end of the recovered water outlet channel;
the inlet end of the second valve is connected with the outlet end of the recovered water inlet channel;
a water pump having an inlet end connected to the outlet end of the second valve;
the 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;
the inlet end of the fourth valve is connected with the outlet end of the first circulating water inlet channel, and the outlet end of the fourth valve is connected with the inlet end of the second heat exchange channel; and
and the inlet end of the fifth valve is connected with the outlet end of the second heat exchange channel, and the outlet end of the fifth valve is connected with the inlet end of the first circulating water outlet channel.
In an embodiment of the present invention, the primary heat recovery system further includes:
a sixth valve connected between the outlet end of the first heat exchange channel and the inlet end of the fourth valve;
a seventh valve connected between the inlet end of the first valve and the outlet end of the fifth valve.
In an embodiment of the present invention, the primary heat recovery system further includes:
an eighth valve connected between the inlet end of the fourth valve and the outlet end of the first circulating water inlet channel;
and the ninth valve is connected between the outlet end of the fifth 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 and the fourth valve are on-off valves, and the third valve and the fifth valve are regulating valves.
In an embodiment of the invention, the sixth valve and the seventh valve are on-off valves.
In an embodiment of the invention, the eighth valve and the ninth valve are on-off valves.
In an embodiment of the present invention, the heat exchanger is a plate heat exchanger.
In an embodiment of the present invention, the inlet end of the second cooling channel is connected to the outlet end of the second circulating water inlet channel, and the outlet end of the second cooling channel is connected to the inlet end of the second circulating water outlet channel; the inlet end of the third cooling channel is connected with the outlet end of a third circulating water inlet channel, and the outlet end of the third cooling channel is connected with the inlet end of a third circulating water outlet channel.
In an embodiment of the present invention, the primary heat recovery system further includes:
a first thermometer connected to an inlet end of the first cooling channel; and/or
A second thermometer connected to an outlet end of the first cooling channel.
In an embodiment of the present invention, the primary 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 fifth valve.
By adopting the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a water pump carries the water that flows into in the recycled water inlet channel to first heat transfer passageway, then flows through first cooling channel through the third valve, flows into the recycled water outlet channel through first valve again, can carry to outside recycled water utilization system by recycled water outlet channel at last to establish water recovery flow path, rivers that flow through in this water recovery flow path heat owing to absorb the heat that first compressor produced, finally flow into the recycled water utilization system and recycle. Therefore, on the premise of ensuring the normal operation of the air compressor system, the heat generated by the first compressor is recovered, the energy utilization rate is improved, and the energy waste and the carbon emission are reduced.
Drawings
FIG. 1 is a schematic diagram of a prior art air compressor system;
fig. 2 is a schematic structural diagram of an embodiment of the primary heat 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.
As shown in fig. 2, the present invention provides a primary heat recovery system for an air compressor, which is used to recover heat generated by a first compressor in an air compressor system 100. In this 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 end of the first gas channel, the inlet end of the second compressor 103 is connected to the outlet end of the first gas channel, the outlet end of the second compressor 103 is connected to the inlet end of the second gas channel, the inlet end of the third compressor 105 is connected to the outlet end 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 an one-level heat recovery system 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 water pump 210, and a heat exchanger 211. The connection relationship between the components is described in detail below:
the inlet end of the first valve 201 is connected to the outlet end of the first cooling passage, and the outlet end of the first valve 201 is connected to the inlet end of the recovered water outlet passage 212. The outlet end of the recovered water outlet passage 212 is connected to an external recovered water utilization system.
The inlet end of the second valve 202 is connected to the outlet end of a recycled water inlet channel 213, and the inlet end of the recycled water inlet channel 213 may be connected to city tap water pipes.
The inlet end of the water pump 210 is connected to the outlet end of the second valve 202.
The heat exchanger 211 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 210. In the present embodiment, the heat exchanger 211 may be a plate heat exchanger, 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 recycle water inlet path 214 and the outlet end of the fourth valve 204 is connected to the inlet end of the second heat exchange path. The inlet end of the fifth valve 205 is connected to the outlet end of the second heat exchange channel, and the outlet end of the fifth valve 205 is connected to the inlet end of the first circulating water outlet channel 215. Wherein, the inlet end of the first circulating water inlet channel 214 and the outlet end of the first circulating water outlet channel 215 are connected with an external first circulating water system.
A sixth valve 206 is connected between the outlet end of the first heat exchange channel and the inlet end of the fourth valve 204.
The seventh valve 207 is connected between the inlet end of the first valve 201 and the outlet end of the fifth valve 205.
An eighth valve 208 is connected between the inlet end of the fourth valve 204 and the outlet end of the first circulating water inlet path 214.
A ninth valve 209 is connected between the outlet end of the fifth valve 205 and the inlet end of the first circulating water outlet channel 215.
In this embodiment, the inlet end of the second cooling channel is connected to the outlet end of the second circulating water inlet channel 216. The outlet end of the second cooling channel is connected with the inlet end of a second circulating water outlet channel 217. The inlet end of the second circulating water inlet channel 216 and the outlet end of the second circulating water outlet channel 217 are respectively connected with the outlet end and the inlet end of an external second circulating water system. The inlet end of the third cooling pass is connected to the outlet end of a third circulating water inlet pass 218. The outlet end of the third cooling passage is connected with the inlet end of a third circulating water outlet passage 219. The inlet end of the third circulating water inlet passage 218 and the outlet end of the third circulating water outlet passage 219 are connected to the outlet end and the inlet end of an external third circulating water system, respectively.
The first valve 201, the second valve 202, the fourth valve 204, the sixth valve 206, the seventh valve 207, the eighth valve 208, and the ninth valve 209 are preferably on-off valves, and the third valve 203 and the fifth valve 205 are preferably regulating valves. The switch valve is different from the regulating valve in that the switch 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 one-level heat recovery system's heat recovery process as follows:
first, the first valve 201, the second valve 202, the third valve 203, the fourth valve 204, the fifth valve 205, the eighth valve 208, and the ninth valve 209 are opened, while the sixth valve 206 and the seventh valve 207 are closed;
then, the water pump 210 is started, the water flowing out of the recovered water inlet channel 213 is delivered to the first heat exchange channel through the water pump 210, then flows through the first cooling channel through the third valve 203, flows into the recovered water outlet channel 212 through the first valve 201, and is delivered to the external recovered water utilization system through the recovered water outlet channel 212, so as to establish a water recovery flow path.
Then, the air compressor system 100 is started, and at this time, the water flow flowing through the water recovery flow path is heated by the heat generated by the first compressor 101 and finally flows into the recovered water utilization system for recycling, and the system can be used in heating, bathing, canteens, boiler water supplement preheating, reverse osmosis pure water preparation heat and other occasions.
It should be noted that, in the heat recovery process, the outlet water temperature of the cooler 102 needs to be increased, but the increase of the outlet water temperature of the cooler 102 causes the outlet air temperature of the cooler 102 to be increased, and the higher the outlet air temperature is, the higher the inlet air temperature of the second compressor 103 is. 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 water cooling flow path that comprises second heat transfer passageway, fourth valve 204, the first circulating water inlet channel 214 of fifth valve 205, first circulating water exhalant canal 215 and the first circulating water system of outside can control the temperature of intaking of first cooler 102 through adjusting fifth valve 205. Furthermore, the utility model discloses still provide third valve 203, through adjusting third valve 203, can control the leaving water temperature of first cooler 102.
According to the experiment test, adopt the utility model discloses a when one-level heat recovery system carries out heat recovery, as long as the temperature of intaking through third valve 203 and fifth valve 205 control first cooler 102 is no longer than 35 ℃, the temperature of leaving water is no longer than 55 ℃, second compressor 103 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 sixth valve 206 and the seventh valve 207 are opened, and the water pump 210, the first valve 201, the second valve 202, the fourth valve 204, and the fifth valve 205 are closed, so that water provided by the external first circulating water system may enter the first cooler 102 through the eighth valve 208, the sixth valve 206, and the third valve 203, and then flow back to the external first circulating water system through the seventh valve 207 and the ninth valve 209, thereby cooling heat generated by the first compressor 101.
According to the specific embodiment of fig. 2, the primary heat recovery system of the present invention further comprises any one or more of the following three components (three are shown in fig. 2): a first thermometer 220 connected to an inlet end of the first cooling channel; a second thermometer 221 connected to an outlet end of the first cooling channel; a flow meter 222 connected between the outlet end of the second heat exchange channel and the inlet end of the fifth valve 205. With these temperature gauges, the inlet water temperature and outlet water temperature of the first cooler 102 can be monitored to protect the compressor 104 from normal operation. Through the setting of flowmeter, the accurate adjustment of the discharge of water in the second heat transfer passageway of being convenient for.
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. A one-stage heat recovery system of an air compressor for recovering heat of an air compressor system, the air compressor system comprising a first compressor, a first cooler, a second compressor, a second cooler, a third compressor and a third cooler in sequential gas communication, wherein the first cooler has a first cooling channel, the second cooler has a second cooling channel, the third cooler has a third cooling channel, the one-stage heat recovery system comprising:
the inlet end of the first valve is connected with the outlet end of the first cooling channel, and the outlet end of the first valve is connected with the inlet end of the recovered water outlet channel;
the inlet end of the second valve is connected with the outlet end of the recovered water inlet channel;
a water pump having an inlet end connected to the outlet end of the second valve;
the 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;
the inlet end of the fourth valve is connected with the outlet end of the first circulating water inlet channel, and the outlet end of the fourth valve is connected with the inlet end of the second heat exchange channel; and
and the inlet end of the fifth valve is connected with the outlet end of the second heat exchange channel, and the outlet end of the fifth valve is connected with the inlet end of the first circulating water outlet channel.
2. The air compressor stage one heat recovery system of claim 1, further comprising:
a sixth valve connected between the outlet end of the first heat exchange channel and the inlet end of the fourth valve;
a seventh valve connected between the inlet end of the first valve and the outlet end of the fifth valve.
3. The air compressor stage one heat recovery system of claim 1, further comprising:
an eighth valve connected between the inlet end of the fourth valve and the outlet end of the first circulating water inlet channel;
and the ninth valve is connected between the outlet end of the fifth valve and the inlet end of the first circulating water outlet channel.
4. The air compressor stage one heat recovery system of claim 1, wherein the first, second and fourth valves are on-off valves and the third and fifth valves are regulating valves.
5. The air compressor stage one heat recovery system of claim 2, wherein the sixth and seventh valves are on-off valves.
6. The air compressor stage one heat recovery system of claim 3, wherein the eighth and ninth valves are on-off valves.
7. The air compressor primary heat recovery system of claim 1, wherein the heat exchanger is a plate heat exchanger.
8. The primary heat recovery system of claim 1, wherein the inlet end of the second cooling channel is connected to the outlet end of a second circulating water inlet channel, and the outlet end of the second cooling channel is connected to the inlet end of a second circulating water outlet channel; the inlet end of the third cooling channel is connected with the outlet end of a third circulating water inlet channel, and the outlet end of the third cooling channel is connected with the inlet end of a third circulating water outlet channel.
9. The air compressor stage one heat recovery system of claim 1, further comprising:
a first thermometer connected to an inlet end of the first cooling channel; and/or
A second thermometer connected to an outlet end of the first cooling channel.
10. The air compressor stage one heat recovery system of 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 fifth valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921105075.0U CN210218031U (en) | 2019-07-15 | 2019-07-15 | One-stage heat recovery system of air compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921105075.0U CN210218031U (en) | 2019-07-15 | 2019-07-15 | One-stage heat recovery system of air compressor |
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| CN210218031U true CN210218031U (en) | 2020-03-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242540A (en) * | 2019-07-15 | 2019-09-17 | 上海赛捷能源科技有限公司 | A kind of level-one heat recovery system of air compressor |
-
2019
- 2019-07-15 CN CN201921105075.0U patent/CN210218031U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242540A (en) * | 2019-07-15 | 2019-09-17 | 上海赛捷能源科技有限公司 | A kind of level-one heat recovery system of air compressor |
| CN110242540B (en) * | 2019-07-15 | 2024-05-03 | 上海赛捷能源科技有限公司 | Primary heat recovery system of air compressor |
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