CN218582890U - Water vapor compression device and water vapor circulation system - Google Patents
Water vapor compression device and water vapor circulation system Download PDFInfo
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- CN218582890U CN218582890U CN202222841527.XU CN202222841527U CN218582890U CN 218582890 U CN218582890 U CN 218582890U CN 202222841527 U CN202222841527 U CN 202222841527U CN 218582890 U CN218582890 U CN 218582890U
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Abstract
The utility model relates to a vapor compression equipment and vapor circulation system, vapor compression equipment includes: a first compression part for compressing the vapor; a second compression unit connected to the first compression unit through an intermediate flow path and configured to compress the water vapor compressed by the first compression unit; a first cooling water vapor flow path which communicates with the intermediate flow path and which supplies cooling water vapor for reducing the temperature of the water vapor sucked into the second compression unit to the intermediate flow path; a temperature detection means provided in the intermediate flow path for detecting the temperature of the water vapor supplied to the second compression section; a first control valve provided in the first cooling water vapor flow path; and the controller is in signal connection with the temperature detection part and the first control valve respectively, and is configured to adjust the opening degree of the first control valve according to the temperature detected by the temperature detection part so that the temperature of the water vapor sucked by the second compression part is higher than the saturation temperature.
Description
Technical Field
The utility model relates to a compressor field particularly, relates to a vapor compression equipment and vapor circulation system.
Background
Steam is widely applied to various industrial production and is an indispensable power source for modern industry. At present, most of steam is produced by various boilers, but electric boilers, gas boilers and coal boilers have the defects of high energy utilization efficiency, and the coal boilers can cause pollution to the atmosphere, so that the energy utilization efficiency is a problem which has to be considered after the national clearly puts forward the energy saving and emission reduction targets of 'carbon peak reaching', 'carbon neutralization'. The mechanical vapor recompression is a high-efficiency energy-saving technology, can produce vapor with temperature and pressure meeting the requirements of engineering by recompressing the vapor with lower temperature and lower pressure produced by a heat pump, and is widely applied to the fields of food processing, chemical industry, paper industry, salt farms, pharmacy and seawater desalination.
The water vapor compressor is a core component of a mechanical vapor recompression system, and is used for pressurizing and heating low-pressure or low-temperature steam so as to meet the temperature and pressure requirements required by a process or engineering. At present, three types of steam compressors, namely a centrifugal steam compressor, a screw steam compressor and a roots type steam compressor, are mainly used. Both the screw type steam compressor and the roots type steam compressor are displacement compressors, have small capacity, and are not suitable for a scene requiring large flow of steam. The centrifugal water vapor compressor has large capacity but small compression ratio, needs to use a multi-stage compression technology when preparing high-temperature and high-pressure water vapor, and in a multi-stage compression system, the exhaust temperature of each stage of water vapor is very high, the exhaust superheat degree is very high, the power consumption of each stage of compression is increased, the temperature of a motor rotor and a stator is increased, and the cooling difficulty of a compressor motor is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vapor compression equipment and vapor circulation system to improve the problem that the energy consumption of the compression portion of the compressor that exists among the prior art is big, the temperature of electric motor rotor and stator is high.
According to an aspect of the present invention, the present invention provides a vapor compression apparatus, in some embodiments, comprising:
a first compression part for compressing the vapor;
a second compression unit connected to the first compression unit through an intermediate flow path and configured to compress the water vapor compressed by the first compression unit;
a first cooling water vapor flow path which communicates with the intermediate flow path and which supplies cooling water vapor for reducing the temperature of the water vapor sucked into the second compression unit to the intermediate flow path;
a temperature detection means provided in the intermediate flow path for detecting the temperature of the steam supplied to the second compression section;
a first control valve provided in the first cooling water vapor flow path;
and the controller is in signal connection with the temperature detection part and the first control valve respectively, and is configured to adjust the opening degree of the first control valve according to the temperature detected by the temperature detection part so that the temperature of the water vapor sucked by the second compression part is higher than the saturation temperature.
In some embodiments, the water vapor compression device further includes a pressure detection component disposed in the intermediate flow path, and the controller is in signal connection with the pressure detection component and configured to calculate a saturation temperature of the water vapor in the intermediate flow path based on the pressure detected by the pressure detection component.
In some embodiments of the present invention, the,
the controller is further configured to calculate a superheat T of water vapor in the intermediate flow path Degree of superheat And at T Degree of superheat With a target degree of superheat T Target degree of superheat The opening degree of the first control valve is increased when the difference Delta T of the superheat degrees between the first control valve and the second control valve is larger than a preset value,
wherein the content of the first and second substances,
△T＝T degree of superheat -T Target degree of superheat ；
Degree of superheat T Degree of superheat Temperature detected by the temperature detection means-saturation temperature.
In some embodiments, the increase of the opening of the first control valve is increased by an increment Δ D = a × Δ T 1 +B*(△T 1 -△T 2 )；
Wherein A and B are constants;
the opening degree is the ratio of the flow area of the valve to the flow area in the fully open state;
△T 1 the superheat degree difference value delta T is the current regulation period of the first control valve;
△T 2 the superheat difference deltat of the previous control cycle of the first control valve,
Δ T is represented by Degree of superheat And T Target degree of superheat The value of the difference.
In some embodiments, the first cooling water vapor flow path is located upstream of the pressure detection means in the flow direction of the water vapor in the intermediate flow path.
In some embodiments, the first cooling water vapor flow path is located upstream of the temperature detection means in the flow direction of the water vapor in the intermediate flow path.
In some embodiments, the water vapor compression apparatus further comprises a supply portion connected to the air inlet of the first compression portion to supply the cooling water vapor to be compressed to the first compression portion, the supply portion communicating with the first cooling water vapor flow path to supply the cooling water vapor to the first cooling water vapor flow path.
In some embodiments, the water vapor compression apparatus further comprises:
and a cooling device including an inlet communicating with the cooling steam supply unit and an outlet communicating with the first cooling steam flow path.
In some embodiments, a water vapor compression apparatus comprises:
an air inlet for introducing water vapor to be compressed;
the air outlet is used for outputting the compressed water vapor;
the second cooling steam flow path is connected with the air outlet so as to adjust the temperature of the steam output by the air outlet;
and a second control valve provided in the second cooling steam flow path to regulate a flow rate of the second cooling steam flow path.
In some embodiments, the outlet of the second cooling water vapor flow path communicates with a water vapor flow path between the compression section nearest the air outlet and the air outlet on the water vapor flow path between the air inlet and the air outlet.
According to another aspect of the present invention, there is also provided a water vapor circulation system, which in some embodiments comprises the water vapor compression apparatus described above.
According to another aspect of the present invention, there is also provided a method for controlling the above water vapor compression apparatus, which includes, in some embodiments:
obtaining the temperature of the water vapor conveyed to the second compressing part;
the opening degree of the first control valve is adjusted according to the temperature of the water vapor so that the temperature of the water vapor sucked by the second compression part is higher than the saturation temperature.
In some embodiments, the control method further comprises:
acquiring the pressure of the water vapor in the intermediate flow path;
the saturation temperature is calculated from the pressure of the water vapor in the intermediate flow path.
In some embodiments, the control method further comprises:
calculating the degree of superheat T of the steam in the intermediate flow path Degree of superheat Degree of superheat T Degree of superheat = temperature detected by the temperature detection means-saturation temperature;
calculating T Degree of superheat With a target degree of superheat T Target degree of superheat The difference value delta T of the superheat degrees between the two;
and if the heat degree difference Delta T is larger than a preset value, the opening degree of the first control valve is increased.
In some embodiments, the first control valve is enlargedIncrement of opening Δ D = a × Δ T 1 +B*(△T 1 -△T 2 )，
Wherein A and B are both constants;
the opening degree is the ratio of the flow area of the valve to the flow area in a fully opened state;
△T 1 the superheat degree difference value delta T is the current regulation period of the first control valve;
△T 2 the superheat difference deltat of the previous control cycle of the first control valve,
delta T is represented by Degree of superheat And T Target degree of superheat The value of the difference.
By applying the technical scheme of the application, the first cooling water vapor flow path conveys the cooling water vapor for reducing the temperature of the water vapor sucked by the second compression part to the intermediate flow path, so that the problems of high energy consumption of the compression part of the compressor and high temperature of a motor rotor and a stator in the prior art are solved. Furthermore, the amount of the added cooling water vapor in the intermediate flow path is controlled, so that the water vapor sucked by the second compression part is guaranteed to be dry saturated gas without liquid, the water vapor sucked by the second compression part is prevented from carrying liquid, wet compression is avoided, and the long-term reliability of the operation of the centrifugal compression equipment is protected.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 shows a schematic structural diagram of a compression apparatus according to an embodiment of the present invention.
In the figure: 1. a first compression section; 2. a second compression section; 3. a pressure detecting member; 4. a temperature detection part; 5. an intermediate flow path; 6. a first cooling water vapor flow path; 7. a first control valve; 8. a pump; 9. a cooling device; 10. a supply section; 11. a third compression section; 12. a second cooling water vapor flow path; 13. a second control valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the water vapor compression apparatus of the present embodiment includes a first compression section 1, a second compression section 2, and a first cooling water vapor flow path 6. The second compression unit 2 is connected to the first compression unit 1 via an intermediate flow path 5 and configured to compress the water vapor compressed by the first compression unit 1. The first cooling water vapor flow path 6 communicates with the intermediate flow path 5 to lower the temperature of the water vapor sucked into the second compression part 2. The intermediate flow path 5 includes an exhaust port of the first compression unit 1 and an intake port of the second compression unit 2.
In this embodiment, a proper amount of cooling water vapor is added to the intermediate flow path 6 after the exhaust port of the first compression part 1 to reduce the temperature of the water vapor, so that the temperature of the water vapor entering the second compression part 2 is reduced, the power consumption of the second compression part 2 is reduced, the overall power consumption of the water vapor compression device is reduced, the exhaust temperature is reduced, and the difficulty in cooling the motor of the water vapor compression device is also reduced. Further, the compressed gas yield of the water vapor can be increased by mixing and vaporizing the cooling water vapor and the compressed water vapor supplied to the intermediate flow path 6.
In some embodiments, the water vapor compression device comprises a centrifugal compression device. Each stage of the compression section of the centrifugal compression device includes a centrifugal impeller.
In some embodiments, the water vapor further includes a temperature detection part 4, a first control valve 7, and a controller. The temperature detection member 4 is provided in the intermediate flow path 5; the first control valve 7 is provided in the first cooling water vapor flow path 6; the controller is in signal connection with the temperature detection part 4 and the first control valve 7, respectively, and is configured to adjust the opening degree of the first control valve 7 according to the temperature detected by the temperature detection part 4 so that the temperature of the water vapor sucked by the second compression part 2 is higher than the saturation temperature.
If the water vapor sucked by the water vapor carries liquid, the water vapor can be subjected to wet compression and damage to an impeller of the water vapor, the water vapor sucked by the second compression part 2 is ensured to be dry saturated gas without liquid by controlling the amount of the added water vapor for cooling in the intermediate flow path 5, the water vapor sucked by the second compression part 2 is prevented from carrying the liquid, the wet compression is avoided, and the long-term reliability of the centrifugal water vapor operation is protected.
The first cooling water vapor flow path 6 is located upstream of the temperature detection means 4 in the flow direction of the water vapor in the intermediate flow path 5. The temperature detecting means 4 detects the temperature of the steam obtained by mixing the cooling steam and the compressed steam.
In some embodiments, the water vapor compression device further comprises a pressure detection component 3 disposed in the intermediate flow path 5, the controller being in signal connection with the pressure detection component 3 and configured to calculate a saturation temperature of the water vapor in the intermediate flow path 5 based on the pressure detected by the pressure detection component 3.
The first cooling water vapor flow path 6 is located upstream of the pressure detection means 3 in the flow direction of the water vapor in the intermediate flow path 5. The pressure detecting means 3 detects the pressure of the steam mixed with the cooling steam.
In some embodiments, the water vapor compression device further comprises a gas inlet, a gas outlet, a third compression section 11 and a second control valve 13. The air inlet is used for introducing water vapor to be compressed; the air outlet is used for outputting the compressed water vapor; the third compression part 11 is the compression part closest to the air outlet in the flow direction of the water vapor from the air inlet to the air outlet; the second cooling water vapor flow path 12 communicates with a flow path between the third compression section 11 and the outlet port; a second control valve 13 is provided in the second cooling water vapor flow path 12 to adjust the flow rate of the second cooling water vapor flow path 12.
In this embodiment, the second cooling water vapor flow path 12 is correspondingly provided in the flow path between the exhaust port of the last stage compression unit of the water vapor and the outlet port of the water vapor, and the flow rate of the second cooling water vapor flow path 12 can be adjusted by adjusting the opening degree of the second control valve 13, so that the degree of superheat of the water vapor discharged from the outlet port of the water vapor compression device is adjusted, and the application range of the water vapor is expanded.
In other embodiments, the compression device comprises two stages of compression or more than two stages of compression, the second cooling water vapor flow path 12 communicating with the outlet of the last stage of compression to output cooling water vapor thereto that regulates the degree of superheat of the water vapor output from the outlet of the water vapor compression device.
A temperature detection means and a pressure detection means are also provided in the flow path between the third compression part 11 and the outlet of the water vapor compression device. The temperature detecting means and the pressure detecting means are located downstream of the second cooling steam flow path 12 in the steam flow path.
In some embodiments, at least one fourth compression section is further provided between the second compression section 2 and the third compression section 11 along the flow path of the water vapor between the inlet and the outlet of the water vapor compression apparatus. In other embodiments, part or all of the air inlets of the compression part are respectively connected with the cooling steam flow path to reduce the air suction temperature of the compression part and improve the air suction amount, which is beneficial to reducing the working temperature of the steam compression equipment and ensuring the stable operation of the steam compression equipment.
The first cooling steam flow path 6 and the second cooling steam flow path 12 are provided with pumps 8, respectively.
The water vapor compression apparatus further includes a supply portion 10 connected to an intake port of the first compression portion 1 to supply the cooling water vapor to be compressed to the first compression portion 1, the supply portion 10 communicating with the first cooling water vapor flow path 6 to supply the cooling water vapor to the first cooling water vapor flow path 6.
The water vapor compression apparatus further includes a cooling device 9, and the cooling device 9 includes an inlet communicating with the cooling water vapor supply portion 10 and an outlet communicating with the first cooling water vapor flow path 6. The water vapor enters the cooling device 9 from the water vapor supply part 10, the water vapor is cooled by the cooling device 9 to form liquid water, the liquid water is pressurized by the pump 8 to provide power, and the liquid water enters the exhaust pipe of the compression part after the flow of the liquid water is controlled by the control valve to be mixed with the compressed water vapor to form saturated steam.
In the embodiment, a certain amount of cooling water vapor is added into the exhaust pipe of each stage of compression part, and the added cooling water vapor is mixed with the compressed superheated water vapor to form liquid-free dry saturated gas and then enters the next stage of compression part, so that the power consumption required by the next stage of compression part is reduced, and the air suction amount of the next stage of compression part is increased.
The controller is also configured to calculate the degree of superheat T of the water vapor in the intermediate flow path 5 Degree of superheat And at T Degree of superheat With a target degree of superheat T Target degree of superheat The opening degree of the first control valve 7 is increased when the difference Δ T between the degrees of superheat is larger than a predetermined value, wherein the units of the degree of superheat and the temperature are both in degrees celsius.
Wherein Δ T = T Degree of superheat -T Target degree of superheat ；
Degree of superheat T Degree of superheat Temperature detected by the temperature detection means 4 — saturation temperature.
Increase of the opening of the first control valve 7 by an increment Δ D = a × Δ T 1 +B*(△T 1 -△T 2 )；
Wherein, the first and the second end of the pipe are connected with each other,
a and B are both constants;
the opening degree is the ratio of the flow area of the valve to the flow area in the fully open state.
△T 1 The superheat difference value delta T of the current regulation period of the first control valve 7;
△T 2 for overheating of the preceding control cycle of the first control valve 7The difference value delta T of the degrees is obtained,
delta T is represented by Degree of superheat And T Target degree of superheat The value of the difference.
According to another aspect of the present invention, there is provided a water vapor circulation system, the water vapor circulation system comprising the above water vapor compression device.
According to another aspect of the present invention, there is provided a control method for the above water vapor compression apparatus, the control method comprising:
obtaining the temperature of the water vapor delivered to the second compression part 2;
the opening degree of the first control valve 7 is adjusted according to the temperature of the water vapor so that the temperature of the water vapor sucked into the second compression part 2 is higher than the saturation temperature.
In some embodiments, the control method further comprises:
acquiring the pressure of the water vapor in the intermediate flow path 5;
the saturation temperature is calculated from the pressure of the water vapor in the intermediate flow path 5.
In some embodiments, the control method further comprises:
the degree of superheat T of the steam in the intermediate flow path 5 is calculated Degree of superheat Degree of superheat T Degree of superheat Temperature detected by the temperature detection means 4 — saturation temperature;
calculating T Degree of superheat With a target degree of superheat T Target degree of superheat The difference value delta T of the superheat degrees is obtained;
if the heat difference Δ T is larger than a predetermined value, the opening degree of the first control valve 7 is increased.
In some embodiments, the increase Δ D = a × Δ T of the opening degree of the first control valve 7 is increased 1 +B*(△T 1 -△T 2 )，
Wherein A and B are both constants;
the opening degree is the ratio of the flow area of the valve to the flow area in the fully open state;
△T 1 the superheat difference value delta T of the current regulation period of the first control valve 7;
△T 2 is one before the first control valve 7Adjusting the superheat degree difference Delta T of the period,
delta T is represented by Degree of superheat And T Target degree of superheat The value of the difference.
In the embodiment, the control method includes that the temperature detection part 4 and the pressure detection part 3 are arranged in an intermediate flow path between two adjacent stages of compression parts, the exhaust temperature (Texhaust) and the exhaust pressure (Pexhaust) of each stage of compression part are respectively measured, the exhaust saturation temperature (Tsaturation) is calculated by measuring the exhaust pressure, then the exhaust superheat degree of water vapor can be calculated, the opening degree of the first control valve 7 on each cooling pipeline is controlled through certain logic according to the deviation value of the exhaust superheat degree and the exhaust superheat degree target value, the water injection quantity of each stage is further controlled, the water vapor sucked in the next stage is guaranteed to be saturated vapor, and the wet compression and the power consumption waste of a compressor are avoided.
Specifically, the control method of the present embodiment includes:
method for controlling the 1# pump 8 for feeding water to the intermediate flow path between the first compression unit 1 and the second compression unit 2: before the water vapor compression equipment is started, the 1# pump is started 60 seconds in advance so as to adjust the superheat degree of the water vapor entering the second compression part 2 in time; after the water vapor compression equipment is stopped, the # 1 pump 8 is turned off after a delay of 60 seconds to continue supplying the water vapor for cooling to the second compression part 2 in the inertia running stage of the water vapor compression equipment.
The control valve control method comprises the following steps:
1. and when the power is powered on for the first time, the first control valve 7 executes a reset action, wherein the reset action is that the first control valve 7 is opened by 100 percent, then the first control valve 7 is closed, and finally the opening degree of the first control valve 7 is made to be 0.
2. After the water vapor compression equipment is detected to be started for the first time, the opening degree of the first control valve 7 is opened to the opening degree of 0, the exhaust superheat degree adjusting state is entered after the time delay of 10S, and the action period (adjusting period) of the opening degree of the control valve is used for once adjustment every T (adjusting period of the control valve) seconds.
The first control valve 7 adjusts the target: t is Degree of superheat ＜T Target superheat value +0.5℃。
Degree of superheat of exhaust gas in first compression unit 1Difference Δ T = T Degree of superheat -T Target degree of superheat 。
When the difference delta T of the exhaust superheat degree of the first compression part 1 is smaller than a preset value, the opening degree of the first control valve 7 is not changed, and the preset value is 0-0.5 ℃.
When the difference Δ T of the degree of superheat of the exhaust gas of the first compression part 1 is greater than the predetermined value:
the increment Δ D = a × Δ T of the opening degree of the first control valve 7 1 +B*(△T 1 -△T 2 )。
Wherein A and B are both constants;
the opening degree is the ratio of the flow area of the valve to the flow area in a fully opened state;
△T 1 the superheat difference Δ T of the current actuation cycle (regulation cycle) of the first control valve 7;
△T 2 the difference Δ T of the degree of superheat of the first control valve 7 in the preceding operating cycle (control cycle),
Δ T is represented by Degree of superheat And T Target degree of superheat The value of the difference.
3. After the stop of the vapor compression equipment is detected, the first control valve 7 is opened to the opening degree 0 after a delay of 30S.
The 2# pump that delivers water vapor to the intermediate flow path between the second compression unit and the third compression unit, the 3# pump that delivers water vapor to the intermediate flow path between the third compression unit and the fourth compression unit, and the 4# pump that delivers water vapor to the intermediate flow path between the fourth compression unit and the outlet of the compression and compression unit are consistent with the 1# pump control method; the control method of the control valves for controlling the flow rates of the water vapor output to the corresponding target positions by the 2# pump, the 3# pump, and the 4# pump is similar to the control method of the first control valve 7, and only the target superheat degree value needs to be adjusted to the corresponding target.
The above are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A water vapor compression apparatus, comprising:
a first compression unit (1) for compressing water vapor;
a second compression unit (2) connected to the first compression unit (1) via an intermediate flow path (5) and configured to compress the water vapor compressed by the first compression unit (1);
a first cooling water vapor flow path (6) that communicates with the intermediate flow path (5) and that feeds cooling water vapor, which reduces the temperature of water vapor sucked into the second compression unit (2), to the intermediate flow path (5);
a temperature detection means (4) provided in the intermediate flow path (5) and configured to detect the temperature of the water vapor sent to the second compression unit (2);
a first control valve (7) provided in the first cooling water vapor flow path (6);
and the controller is respectively in signal connection with the temperature detection part (4) and the first control valve (7) and is configured to adjust the opening degree of the first control valve (7) according to the temperature detected by the temperature detection part (4) so as to enable the temperature of the water vapor sucked by the second compression part (2) to be higher than the saturation temperature.
2. A water vapour compression device according to claim 1, further comprising a pressure detection means (3) provided in the intermediate flow path (5), the controller being in signal connection with the pressure detection means (3) and configured to calculate a saturation temperature of water vapour in the intermediate flow path (5) from the pressure detected by the pressure detection means (3).
3. A water vapor compression device as recited in claim 2,
the controller is further configured to calculate a degree of superheat T of water vapor in the intermediate flow path (5) Degree of superheat And at said T Degree of superheat And target degree of superheat T Target degree of superheat The opening degree of the first control valve (7) is increased when the difference Delta T of the superheat degrees is larger than a preset value,
wherein Δ T = T Degree of superheat -T Target degree of superheat ；
The degree of superheat T Degree of superheat = the temperature detected by the temperature detection means (4) = the saturation temperature.
4. A water vapour compression device according to claim 3, wherein the increase Δ D = a Δ T of the opening of the first control valve (7) is increased 1 +B*(△T 1 -△T 2 )；
Wherein A and B are both constants;
the opening degree is the ratio of the flow area of the valve to the flow area in the fully open state;
△T 1 is the superheat difference Delta T of the current regulation period of the first control valve (7);
△T 2 the difference Delta T of the superheat degree of the previous adjusting period of the first control valve (7);
delta T is represented by Degree of superheat And T Target degree of superheat The value of the difference.
5. A water vapor compression apparatus according to claim 2, characterized in that the first cooling water vapor flow path (6) is located upstream of the pressure detection means (3) in a flow direction of water vapor in the intermediate flow path (5).
6. A water vapor compression apparatus according to claim 1, characterized in that the first cooling water vapor flow path (6) is located upstream of the temperature detection means (4) in the flow direction of water vapor in the intermediate flow path (5).
7. A water vapor compression apparatus according to claim 1, further comprising a supply portion (10) connected to an intake port of the first compression portion (1) to supply cooling water vapor to be compressed to the first compression portion (1), the supply portion (10) communicating with the first cooling water vapor flow path (6) to supply the cooling water vapor to the first cooling water vapor flow path (6).
8. The apparatus of claim 7, further comprising:
and a cooling device (9) having an inlet communicating with the cooling steam supply unit (10) and an outlet communicating with the first cooling steam passage (6).
9. A water vapor compression device as recited in claim 1 comprising:
an air inlet for introducing water vapor to be compressed;
the air outlet is used for outputting the compressed water vapor;
a second cooling steam flow path (12) connected to the outlet port to adjust the temperature of the steam output from the outlet port;
and a second control valve (13) that is provided in the second cooling water vapor flow path (12) and that adjusts the flow rate of the second cooling water vapor flow path (12).
10. A water vapour compression device according to claim 9, wherein the outlet of the second cooling water vapour flow path (12) communicates with a water vapour flow path between the compression section nearest the outlet port and the outlet port in a water vapour flow path between the inlet port and the outlet port.
11. A water vapor circulation system comprising a water vapor compression device as claimed in any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202222841527.XU CN218582890U (en) | 2022-10-27 | 2022-10-27 | Water vapor compression device and water vapor circulation system |
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| CN202222841527.XU CN218582890U (en) | 2022-10-27 | 2022-10-27 | Water vapor compression device and water vapor circulation system |
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| CN218582890U true CN218582890U (en) | 2023-03-07 |
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