CN219222631U - Industrial waste heat heating unit - Google Patents
Industrial waste heat heating unit Download PDFInfo
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- CN219222631U CN219222631U CN202223487121.2U CN202223487121U CN219222631U CN 219222631 U CN219222631 U CN 219222631U CN 202223487121 U CN202223487121 U CN 202223487121U CN 219222631 U CN219222631 U CN 219222631U
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Abstract
The utility model relates to the technical field of industrial waste heat heating, in particular to an industrial waste heat heating unit. The system comprises a compression type heat pump, an evaporator of the compression type heat pump is connected with heat supply network water, the evaporator of the compression type heat pump is connected with a condenser of a second type of absorption type heat pump through a pipeline, the condenser of the second type of absorption type heat pump is connected with the condenser of the compression type heat pump through a pipeline, an absorber of the second type of absorption type heat pump is connected with the condenser of the compression type heat pump or the condenser of the second type of absorption type heat pump through a pipeline, the absorber is connected with a heating pipeline, and a waste heat source is connected with a generator and the evaporator of the second type of absorption type heat pump through pipelines. The second type of absorption heat pump bears a part of load of the compression heat pump, so that the heat absorption capacity of the compression heat pump is reduced by half, and the power consumption is reduced; meanwhile, the heating effect of the second type of absorption heat pump is fully utilized, the effect that the water outlet temperature of the heat supply network is higher than the temperature of the waste heat is achieved, and the requirement of a heat supply system is met.
Description
Technical Field
The utility model relates to the technical field of industrial waste heat heating, in particular to an industrial waste heat heating unit.
Background
In the field of industrial waste heat heating, when the waste heat temperature and the water temperature of a heat supply network are not greatly different, if the waste heat temperature and the water temperature of the heat supply network are directly exchanged, the heat exchange quantity is smaller, and the water supply temperature is very low, so that a heat pump technology is needed. Under the condition of no high-grade heat source such as steam, the following two utilization modes exist:
one is to utilize the second type of absorption heat pump, does not need extra driving energy, can supply the hot network water higher than the temperature of the waste heat source, but the conversion rate is below 0.5, more than half of heat is discharged through the cooling water; the other is to use a compression heat pump, and use electric energy to drive, recover the heat of the residual hot water and heat the water in the heat supply network, but the power consumption is relatively large, and the power consumption is larger as the water outlet temperature is higher.
The second type of absorption heat pump can recover waste heat without consuming extra energy, but can waste more than half of the heat; the compression heat pump can fully recover waste heat, but the consumed electric quantity is relatively high. A heating unit capable of realizing all waste heat recovery, increasing water supply temperature and reducing power consumption is required.
Disclosure of Invention
The utility model aims to provide an industrial waste heat heating unit which can realize the recovery of all waste heat, has high water supply temperature and low power consumption.
The utility model provides an industrial waste heat heating unit, which comprises a compression heat pump, wherein an evaporator liquid inlet of the compression heat pump is connected with heat supply network water through a pipeline, an evaporator liquid outlet of the compression heat pump is connected with a condenser liquid inlet of a second type of absorption heat pump through a pipeline, a condenser liquid outlet of the second type of absorption heat pump is connected with the condenser liquid inlet of the compression heat pump through a pipeline, an absorber liquid inlet of the second type of absorption heat pump is connected with the condenser liquid outlet of the compression heat pump or the condenser liquid outlet of the second type of absorption heat pump through a pipeline, an absorber liquid outlet of the second type of absorption heat pump is connected with a heating pipeline, and a waste heat source is connected with a generator and an evaporator of the second type of absorption heat pump through pipelines.
Further, the absorber liquid inlet of the second type of absorption heat pump is connected with the condenser liquid outlet of the compression heat pump through a pipeline.
Further, a heat exchanger is arranged on a pipeline connecting the condenser of the compression heat pump and the absorber of the second-class absorption heat pump.
Further, the waste heat source is connected with a heat source inlet of the heat exchanger through a pipeline.
Further, the absorber liquid inlet of the second type absorption heat pump is connected with the liquid outlet of the condenser of the second type absorption heat pump through a pipeline.
Further, a heat exchanger is arranged on a pipeline connecting the condenser of the second type absorption heat pump and the condenser of the compression heat pump.
Further, a condenser liquid outlet of the compression heat pump is connected with a heating pipeline through a pipeline.
Further, the evaporator of the compression heat pump is connected in series with the condenser of the second type of absorption heat pump through a pipe.
Further, the condenser of the compression heat pump and the absorber of the second type of absorption heat pump are connected in series or in parallel through a pipeline.
Further, the generator, the evaporator and the heat exchanger of the second type absorption heat pump are connected in series or in parallel through pipelines.
In summary, compared with the prior art, the utility model has the following advantages:
in the system flow, heat supply network water firstly enters an evaporator of the compression heat pump, enters a condenser of the second type absorption heat pump as cooling water after being cooled, then enters the condenser of the compression heat pump or an absorber of the second type absorption heat pump, and finally is externally supplied through a heating pipeline; the waste heat source enters the generator and the evaporator of the second-class absorption heat pump to release heat, and the heat is transferred to the condenser and the absorber of the second-class absorption heat pump through an internal flow path. The second type of absorption heat pump without power consumption bears the load of a part of the compression heat pump, so that the heat absorption capacity of the compression heat pump is reduced by half, and the overall power consumption is reduced; meanwhile, the heating effect of the second type of absorption heat pump is fully utilized, the effect that the water outlet temperature of the heat supply network is higher than the temperature of the waste heat is achieved, and the requirement of a heat supply system is met.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a heating unit in embodiment 1 of the present utility model;
FIG. 2 is a flow chart of a heating unit in embodiment 2 of the present utility model;
FIG. 3 is a flow chart of a heating unit in embodiment 3 of the present utility model;
fig. 4 is a flow chart of a heating unit in embodiment 4 of the present utility model.
Reference numerals illustrate: 1-compression heat pump, 101-evaporator, 102-condenser, 2-second type absorption heat pump, 201-condenser, 202-absorber, 203-generator, 204-evaporator, 3-heat exchanger, 4-heating pipeline.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
An industrial waste heat heating unit is shown in figure 1.
The evaporator 101 liquid inlet of the compression heat pump 1 is connected with the heat supply network water through a pipeline, the evaporator 101 liquid outlet of the compression heat pump 1 is connected with the condenser 201 liquid inlet of the second type absorption heat pump 2 in series through a pipeline, the condenser 201 liquid outlet of the second type absorption heat pump 2 is connected with the condenser 102 liquid inlet of the compression heat pump 1 in series through a pipeline, the condenser 102 liquid outlet of the compression heat pump 1 is connected with the absorber 202 liquid inlet of the second type absorption heat pump 2 in series through a pipeline, and the absorber 202 liquid outlet of the second type absorption heat pump 2 is connected with the heating pipeline 4.
The waste heat source is connected with the heat source inlets of the generator 203 and the evaporator 204 of the second type absorption heat pump 2 through pipelines.
The generator 203 and the evaporator 204 of the second type absorption heat pump 2 may be connected in series or in parallel, and are not specified in detail in the flow path inside the second type absorption heat pump 2.
In this embodiment, the heat supply network water flow: the refrigerant enters the evaporator 101 of the compression heat pump 1 for cooling, enters the condenser 201 of the second-class absorption heat pump 2, returns to the condenser 102 of the compression heat pump 1, finally enters the absorber 202 of the second-class absorption heat pump 2 for heating, and is fed out through the heating pipeline 4. Waste heat flow: the waste heat source enters the generator 203 and the evaporator 204 of the second type absorption heat pump 2 to release heat, and the heat is transferred to the condenser 201 and the absorber 202 through an internal flow path.
Example 2
An industrial waste heat heating unit is shown in figure 2.
The technical scheme of this embodiment is basically the same as embodiment 1, except that: the heat exchanger 3 is installed on a pipeline for connecting the condenser 102 of the compression heat pump 1 and the absorber 202 of the second-type absorption heat pump 2, the liquid inlet of the heat exchanger 3 is connected with the liquid outlet of the condenser 102 of the compression heat pump 1 through a pipeline, and the liquid outlet of the heat exchanger 3 is connected with the liquid inlet of the absorber 202 of the second-type absorption heat pump 2 through a pipeline. The heat source inlet of the heat exchanger 3 is connected with a waste heat source through a pipeline.
In this embodiment, the heat supply network water flow: the heat pump enters the evaporator 101 of the compression heat pump 1 for cooling, enters the condenser 201 of the second-class absorption heat pump 2, returns to the condenser 102 of the compression heat pump 1, then enters the heat exchanger 3 for directly exchanging heat with waste heat, and finally enters the absorber 202 of the second-class absorption heat pump 2 for heating and then is fed out through the heating pipeline 4.
Waste heat flow: the waste heat source enters the generator 203 and the evaporator 204 of the second type absorption heat pump 2 and the heat exchanger 3. The generator 203 and the evaporator 204 of the second type of absorption heat pump 2 and the heat exchanger 3 may be connected in series, parallel or a combination of series and parallel (which is a conventional technical means in the art), and are determined according to practical situations and specific parameters.
Example 3
An industrial waste heat heating unit is shown in figure 3.
The evaporator 101 liquid inlet of the compression heat pump 1 is connected with the heat supply network water through a pipeline, the evaporator 101 liquid outlet of the compression heat pump 1 is connected with the liquid inlet of the condenser 201 of the second type absorption heat pump 2 in series through a pipeline, the condenser 201 liquid outlet of the second type absorption heat pump 2 is respectively connected with the condenser 102 liquid inlet of the compression heat pump 1 and the liquid inlet of the absorber 202 of the second type absorption heat pump 2 through a pipeline, the condenser 102 of the compression heat pump 1 is connected with the absorber 202 of the second type absorption heat pump 2 in parallel, the absorber 202 liquid outlet of the second type absorption heat pump 2 is connected with the heating pipeline 4, and the condenser 102 liquid outlet of the compression heat pump 1 is connected with the heating pipeline 4 through a pipeline. The heat exchanger 3 is installed on a pipe connecting the condenser 201 of the second type absorption heat pump 2 with the condenser 102 of the compression heat pump 1. The heat source inlet of the heat exchanger 3 is connected with a waste heat source. The waste heat source is connected with the heat source inlets of the generator 203 and the evaporator 204 of the second type absorption heat pump 2 through pipelines.
The heat exchanger 3 is connected in series with the condenser 102 of the compression heat pump 1 and in parallel with the absorber 202 of the second type of absorption heat pump 2.
In this embodiment, the heat supply network water flow: the heat supply network water is split into two paths after coming out of the condenser 201 of the second type absorption heat pump 2, one part of the heat supply network water enters the heat exchanger 3 through a pipeline and the condenser 102 of the compression heat pump 1 to heat, and the other part of the heat supply network water enters the absorber 202 of the second type absorption heat pump 2 through a pipeline to heat, and then is mixed and supplied out through the heating pipeline 4. Waste heat flow: the waste heat source enters the generator 203 and the evaporator 204 of the second type absorption heat pump 2 and the heat exchanger 3.
Example 4
An industrial waste heat heating unit is shown in fig. 4.
The technical scheme of the embodiment is basically the same as that of embodiment 3, except that: the heat exchanger 3 is not installed in the pipe connecting the condenser 201 of the second type absorption heat pump 2 with the condenser 102 of the compression heat pump 1.
In this embodiment, the heat supply network water flow: the heat supply network water is split into two paths after coming out of the condenser 201 of the second type absorption heat pump 2, one part of the heat supply network water enters the condenser 102 of the compression heat pump 1 through a pipeline to heat, and the other part of the heat supply network water enters the absorber 202 of the second type absorption heat pump 2 through a pipeline to heat, and then is mixed and fed out. Waste heat flow: the waste heat source enters the generator 203 and the evaporator 204 of the second type of absorption heat pump 2.
The heat exchanger in the heating unit provided by the utility model is optional, and the heat exchanger can be installed selectively if the temperature of the residual hot water is higher than the temperature of the heat supply network water at the corresponding point. The cooling water of the second type of absorption heat pump can be directly recovered by the compression heat pump, the condenser of the heat supply network water of the advanced compression heat pump enters the absorber of the second type of absorption heat pump, and a water pump and a water supplementing constant pressure device can be arranged between the condenser of the second type of absorption heat pump and the evaporator of the compression heat pump.
The industrial waste heat heating unit combines the compression heat pump and the second type of absorption heat pump, thereby realizing the recovery of all waste heat, improving the water supply temperature and reducing the power consumption of the system.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. The utility model provides an industry waste heat heating unit, its characterized in that includes compression heat pump (1), compression heat pump (1) evaporator (101) liquid entry passes through the pipeline and is connected with the heat supply network water, compression heat pump (1) evaporator (101) liquid export is connected with second class absorption heat pump (2) condenser (201) liquid entry through the pipeline, second class absorption heat pump (2) condenser (201) liquid export is connected with compression heat pump (1) condenser (102) liquid entry through the pipeline, second class absorption heat pump (2) absorber (202) liquid entry passes through the pipeline with compression heat pump (1) condenser (102) liquid export or second class absorption heat pump (2) condenser (201) liquid export, second class absorption heat pump (2) absorber (202) liquid export is connected with heating pipeline (4), the waste heat source passes through the pipeline with second class absorption heat pump (2) generator (203) and second class absorption heat pump (2) evaporator (204).
2. Industrial waste heat heating unit according to claim 1, characterized in that the absorber (202) liquid inlet of the second type of absorption heat pump (2) is connected with the condenser (102) liquid outlet of the compression heat pump (1) by a pipe.
3. Industrial waste heat heating unit according to claim 2, characterized in that the condenser (102) of the compression heat pump (1) is provided with a heat exchanger (3) on the line connecting with the absorber (202) of the absorption heat pump (2) of the second type.
4. An industrial waste heat heating unit according to claim 3, characterized in that the waste heat source is connected to the heat source inlet of the heat exchanger (3) by means of a pipe.
5. Industrial waste heat heating unit according to claim 1, characterized in that the absorber (202) liquid inlet of the second type of absorption heat pump (2) is connected by a pipe to the liquid outlet of the condenser (201) of the second type of absorption heat pump (2).
6. Industrial waste heat heating unit according to claim 5, characterized in that the condenser (201) of the second type of absorption heat pump (2) is provided with a heat exchanger (3) on a pipe connected to the condenser (102) of the compression heat pump (1).
7. Industrial waste heat heating unit according to claim 6, characterized in that the condenser (102) liquid outlet of the compression heat pump (1) is connected to the heating pipe (4) by a pipe.
8. Industrial waste heat heating unit according to claim 1, characterized in that the evaporator (101) of the compression heat pump (1) and the condenser (201) of the second type of absorption heat pump (2) are connected in series by means of a pipe.
9. Industrial waste heat heating unit according to claim 1, characterized in that the condenser (102) of the compression heat pump (1) is connected in series or in parallel with the absorber (202) of the second type of absorption heat pump (2) by means of a pipe.
10. Industrial waste heat heating unit according to claim 6, characterized in that the generator (203) of the second type of absorption heat pump (2), the evaporator (204) of the second type of absorption heat pump (2) and the heat exchanger (3) are connected in series or in parallel by means of pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223487121.2U CN219222631U (en) | 2022-12-26 | 2022-12-26 | Industrial waste heat heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223487121.2U CN219222631U (en) | 2022-12-26 | 2022-12-26 | Industrial waste heat heating unit |
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| Publication Number | Publication Date |
|---|---|
| CN219222631U true CN219222631U (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223487121.2U Active CN219222631U (en) | 2022-12-26 | 2022-12-26 | Industrial waste heat heating unit |
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| CN (1) | CN219222631U (en) |
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- 2022-12-26 CN CN202223487121.2U patent/CN219222631U/en active Active
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