CN216977243U - Generator for refrigerating system - Google Patents
Generator for refrigerating system Download PDFInfo
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- CN216977243U CN216977243U CN202220059677.2U CN202220059677U CN216977243U CN 216977243 U CN216977243 U CN 216977243U CN 202220059677 U CN202220059677 U CN 202220059677U CN 216977243 U CN216977243 U CN 216977243U
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Abstract
The utility model discloses a generator for a refrigerating system, which comprises a generating section and a heating section, wherein the generating section comprises a first heating section and a second heating section; a middle heat insulation wall is arranged between the generation section and the heating section; the generation section is used for heating the solution by utilizing a heat source, and a generator shell of the generation section is provided with a generator heat source inlet, a generation section solution outlet and a steam outlet; a heat source flowing through the generation section enters the heating section through a heat source channel in the middle heat insulation wall and is used for heating the solution from the solution outlet of the generation section, and a heating section solution inlet, a heating section solution outlet and a generator heat source outlet are arranged on a generator shell of the heating section; the solution outlet of the generation section is communicated with the solution inlet of the heating section. The utility model adopts a structural form that the generation section is integrated with the series heating section, realizes the secondary utilization of heat source heat, realizes the more sufficient utilization of the heat source heat, reduces the energy loss in the utilization process, and further improves the refrigeration efficiency of the whole absorption refrigeration system.
Description
Technical Field
The utility model relates to the field of refrigeration heat exchange equipment, in particular to a generator for a refrigeration system.
Background
The absorption refrigerating system consists of generator, condenser, evaporator, absorber, solution pump, throttle valve and other parts, and the working medium includes refrigerating agent for producing cold and absorbent for absorbing and desorbing the refrigerating agent. The generator is an important component of an absorption refrigeration system, and heats a solution with a certain concentration, which is delivered from an absorber by a solution pump, by using a heat source (such as water vapor, hot water, flue gas, etc.), and evaporates most of the low-boiling point refrigerant in the solution. In the prior art, a heat source is generally directly discharged or conveyed to other systems for reuse after exchanging heat with a solution in a generator, and the problems of insufficient utilization of the heat source, energy loss and the like exist in the mode.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages of the prior art, it is an object of the present invention to provide a generator for a refrigeration system, which employs a structure in which a generation section is connected in series with a heating section, so as to improve the utilization rate of a heat source.
One aspect of the present invention is to provide a generator for a refrigeration system, comprising a generating section and a heating section; a middle heat insulation wall is arranged between the generation section and the heating section; the generating section is used for heating the solution from the absorber of the refrigerating system by utilizing a heat source, and a generator shell of the generating section is provided with a generator heat source inlet, a generating section solution outlet and a steam outlet; a heat source flowing through the generating section enters the heating section through a heat source channel in the middle heat insulation wall and is used for heating the solution from the solution outlet of the generating section, and a generator shell of the heating section is provided with a heating section solution inlet, a heating section solution outlet and a generator heat source outlet; and the generation section solution outlet is communicated with the heating section solution inlet.
Optionally, the generation section adopts a shell-and-tube, tube-plate or plate-and-shell heat exchange structure.
Optionally, the heating section adopts a plate type heat exchange structure.
Optionally, the generator further comprises a demister in communication with the steam outlet, the demister being provided with a steam inlet, a steam outlet and a demister return liquid outlet. Optionally, the demister comprises a 1 st stage demister and a 2 nd stage demister connected in series in sequence. Optionally, the 1 st stage demister adopts a gravity type separation structure, and the 2 nd stage demister adopts a centrifugal type separation structure. Optionally, the demister return outlet is in communication with the heating zone solution inlet.
The utility model has the following beneficial effects:
through adopting the structural style of integrating the series heating sections after the generation section, the secondary utilization of the heat source is realized, the more sufficient utilization of the heat source is realized, the energy loss in the utilization process is reduced, and the refrigeration efficiency of the whole absorption refrigeration system is further improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic diagram of the structure of a generator in one embodiment of the utility model.
Reference numerals:
the device comprises a shell 1, a generation section 2, a heating section 3, a generator heat source inlet 4, a generation section solution outlet 5, a steam outlet 6, a generation section heat source outlet 7, a heating section heat source inlet 8, a generator heat source outlet 9, a heating section solution inlet 10, a heating section solution outlet 11, a heat source channel 12, a 1 st-stage demister 13, a 2 nd-stage demister 14, a demister return liquid outlet 15 and a demister steam outlet 16
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 shows an embodiment of the generator for a refrigeration system of the present invention, comprising: a housing 1, a generating section 2 and a heating section 3. The shell 1 is provided with a generator heat source inlet 4, a generation section solution inlet (positioned on the inner side of the generation section solution outlet 5 and not shown), a generation section solution outlet 5 and a steam outlet 6 on one side corresponding to the generation section 2, and the shell 1 is provided with a generator heat source outlet 9, a heating section solution inlet 10 and a heating section solution outlet 11 on one side corresponding to the heating section 3. An intermediate heat insulation wall is arranged between the generation section 2 and the heating section 3 in the shell 1, and the intermediate heat insulation wall is provided with a generation section heat source outlet 7, a heating section heat source inlet 8 and a heat source channel 12 communicating the generation section heat source outlet and the heating section heat source inlet.
When the generator works, the solution from the absorber of the refrigeration system enters the generation section 2 from the solution inlet of the generation section and is heated by the heat source which enters the generation section 2 from the heat source inlet 4 of the generator, the heat source can be hot water, water vapor or flue gas, after heat exchange is generated in the generation section 2, the refrigerant in the solution is evaporated and is discharged out of the shell 1 through the steam outlet 6, the rest solution is discharged out of the generation section 2 from the solution outlet 5 of the generation section, the heat source after heat exchange in the generation section 2 is discharged to the heat source channel 12 from the heat source outlet 7 of the generation section and then enters the heating section 3 through the heat source inlet 8 of the heating section to perform secondary heat exchange with the solution from the solution outlet 5 of the generation section, namely, the solution flowing out of the solution outlet 5 of the generation section enters the heating section 3 from the solution inlet 10 of the heating section through an external pipeline (not shown), and then is discharged out of the generator through the solution outlet 11 of the heating section after secondary heat exchange with the heat source entering the heating section 3 in the heating section 3, then the solution heat exchanger entering the refrigerating system exchanges heat with the solution from the absorber, the temperature of the solution is raised, the heat utilization rate and the refrigerating efficiency are improved, and the heat source after heat exchange is discharged out of the shell 1 from the heat source outlet 9 of the generator.
In this embodiment, the generation section 2 adopts a structural form of a plate-shell heat exchanger, and the heating section 3 adopts a structural form of a plate heat exchanger, that is, the plate heat exchanger (not shown in the figure for simplicity) is installed in the casing 1 corresponding to the heating section 3. I.e. the heat source flows inside the bundle of plates in section 2, while the plates are immersed in the solution. When the heat source is in the heating section 3, the heat exchange is carried out between the heat source and the solution in the plate heat exchanger. In other embodiments, the generation section 2 can also adopt a shell-and-tube type, a tube-plate type and other heat exchange structures.
As shown in fig. 1, the generator in this embodiment is also provided with a demister for separating and returning a small amount of the solution entrained in the refrigerant vapor to the heating section 3. The preferred demister includes a 1 st stage demister 13 and a 2 nd stage demister 14, the 1 st stage demister 13 being provided with a demister steam inlet communicating with the steam outlet 6, the 2 nd stage demister 14 having a demister return liquid outlet 15 and a demister steam outlet 16. The 1 st level demister 13 and the 2 nd level demister 14 are arranged in series, the 1 st level demister 13 adopts a gravity type separation structure, the 2 nd level demister 14 adopts a centrifugal separation structure, the two-level demister can be two independent defoamers, and can also be integrated together (namely assembled in the same shell) so as to effectively ensure that no mist and impurity is left after the refrigerant is evaporated, and ensure that the subsequent links obtain pure refrigerant gas.
Since the heat exchange structures and the demister structure are all the prior art, the drawings are only schematically shown, and detailed structures of the heat exchange structures and the demister structure are not repeated in this specification.
The demister return liquid outlet 15 can discharge a small amount of fog drops mixed in the refrigerant gas, the fog drops are converged with the solution discharged from the generation section solution outlet 5 through an external pipeline (not shown), and then the fog drops are sent into the heating section 3 through the heating section solution inlet 10, and the heating is realized by using the waste heat of a heat source. By adopting the solution collection and reheating mode, the mist in the refrigerant gas can be more fully recovered, the waste heat after heat exchange of the heat source is more fully utilized, and the comprehensive utilization efficiency of energy is further improved.
According to the technical scheme provided by the utility model, the secondary utilization of the heat source is realized by adopting a structural form that the generation section is integrated with the series heating section, so that the heat of the heat source is more fully utilized, the energy loss in the utilization process is reduced, and the refrigeration efficiency of the whole absorption refrigeration system is further improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A generator for a refrigeration system, characterized by: comprises a generating section and a heating section; a middle heat insulation wall is arranged between the generating section and the heating section; the generating section is used for heating the solution from the absorber of the refrigerating system by utilizing a heat source, and a generator shell of the generating section is provided with a generator heat source inlet, a generating section solution outlet and a steam outlet; a heat source flowing through the generating section enters the heating section through a heat source channel in the middle heat insulation wall and is used for heating the solution from the solution outlet of the generating section, and a generator shell of the heating section is provided with a heating section solution inlet, a heating section solution outlet and a generator heat source outlet; and the generation section solution outlet is communicated with the heating section solution inlet.
2. The generator for a refrigeration system of claim 1, wherein: the generation section adopts a shell-and-tube type, tube-plate type or plate-and-shell type heat exchange structure.
3. The generator for a refrigeration system of claim 1, wherein: the heating section adopts a plate type heat exchange structure.
4. The generator for a refrigeration system of claim 1, wherein: the generator further comprises a demister communicated with the steam outlet, and the demister is provided with a steam inlet, a steam outlet and a demister backflow liquid outlet.
5. The generator for a refrigeration system of claim 4, wherein: the demister comprises a 1 st-stage demister and a 2 nd-stage demister which are sequentially connected in series.
6. The generator for a refrigeration system of claim 5, wherein: the 1 st-stage demister adopts a gravity type separation structure, and the 2 nd-stage demister adopts a centrifugal separation structure.
7. A generator for a refrigeration system according to any one of claims 4 to 6, wherein: and the demister return liquid outlet is communicated with the heating section solution inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220059677.2U CN216977243U (en) | 2022-01-11 | 2022-01-11 | Generator for refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220059677.2U CN216977243U (en) | 2022-01-11 | 2022-01-11 | Generator for refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216977243U true CN216977243U (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220059677.2U Active CN216977243U (en) | 2022-01-11 | 2022-01-11 | Generator for refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216977243U (en) |
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2022
- 2022-01-11 CN CN202220059677.2U patent/CN216977243U/en active Active
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Address after: 201100 room 605, building 2, jinlinggu Science Park, No. 525 Yuanjiang Road, Minhang District, Shanghai Patentee after: Zhongneng Green Technology (Shanghai) Technology Co.,Ltd. Address before: 201100 room 605, building 2, jinlinggu Science Park, No. 525 Yuanjiang Road, Minhang District, Shanghai Patentee before: Zhongjie energy technology (Shanghai) Co.,Ltd. |