CN221125996U - Humidifier and fuel cell engine - Google Patents
Humidifier and fuel cell engine Download PDFInfo
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- CN221125996U CN221125996U CN202322643175.1U CN202322643175U CN221125996U CN 221125996 U CN221125996 U CN 221125996U CN 202322643175 U CN202322643175 U CN 202322643175U CN 221125996 U CN221125996 U CN 221125996U
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- 239000000446 fuel Substances 0.000 title claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 130
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 239000012528 membrane Substances 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 11
- 230000002776 aggregation Effects 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 150000003384 small molecules Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- -1 silicone) Chemical class 0.000 description 1
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Abstract
The utility model provides a humidifier and a fuel cell engine, wherein the humidifier comprises: the end cover part is provided with a dry gas inlet and a dry gas bypass inlet, and the dry gas inlet is used for being connected with the intercooler; a filtering membrane is arranged in the end cover part so as to filter fluid flowing in from the dry gas inlet, and the dry gas inlet bypass port is used for discharging filtered substances; the heating part is connected with the end cover part and is positioned at one side of the end cover part far away from the dry gas inlet, a heating component is arranged in the heating part and is used for heating liquid water in fluid flowing through the heating part into water vapor, and a water outlet for discharging the liquid water is arranged on the heating part; the humidifying part is provided with a wet gas inlet, a wet gas outlet and a dry gas outlet, the dry gas outlet is positioned on one side of the humidifying part far away from the end cover part, and a membrane tube is arranged in the humidifying part, so that the problem that the service life of the humidifier for the fuel cell engine in the prior art is short compared with that of the engine is solved.
Description
Technical Field
The utility model relates to the technical field of fuel cell humidification, in particular to a humidifier and a fuel cell engine.
Background
The humidifier for fuel cell engine has a problem of short life compared with the engine, and factors influencing the life of the humidifier mainly include a selection margin, temperature, humidity, pressure, organic small molecules (such as silicone), liquid water and the like.
Besides the influence of parameters such as the type selection allowance, temperature, humidity and pressure, the cooled air from the intercooler is provided with liquid water and small organic molecules, the service life of the humidifier can be reduced through reaction, and the membrane tube of the humidifier can be broken due to the impact of the liquid water, so that the reduction of the entry of the small organic molecules and the liquid water is particularly important for the humidifier.
Disclosure of utility model
The utility model mainly aims to provide a humidifier and a fuel cell engine, so as to solve the problem that the humidifier for the fuel cell engine in the prior art has shorter service life compared with the engine.
In order to achieve the above object, according to a first aspect of the present utility model, there is provided a humidifier comprising: the end cover part is provided with a dry gas inlet and a dry gas bypass inlet, and the dry gas inlet is used for being connected with the intercooler; a filtering membrane is arranged in the end cover part so as to filter fluid flowing in from the dry gas inlet, and the dry gas inlet bypass port is used for discharging filtered substances; the heating part is connected with the end cover part and is positioned at one side of the end cover part far away from the dry gas inlet, a heating component is arranged in the heating part and is used for heating liquid water in fluid flowing through the heating part into water vapor, and a water outlet for discharging the liquid water which is not evaporated is arranged on the heating part; the humidifying part is provided with a wet gas inlet, a wet gas outlet and a dry gas outlet, the wet gas inlet and the wet gas outlet are arranged on the humidifying part at intervals, the dry gas outlet is positioned on one side of the humidifying part far away from the end cover part, and a membrane tube is arranged in the humidifying part.
Further, a first pipe joint is arranged on the end cover part, the first end of the first pipe joint is connected with the end cover part, and the dry gas inlet is positioned at the second end of the first pipe joint; wherein, the first pipe joint is provided with a dry gas inlet temperature and humidity pressure sensor; and/or the humidifying part is provided with a second pipe joint, the first end of the second pipe joint is connected with the humidifying part, and the moisture inlet is positioned at the second end of the second pipe joint; wherein, the second pipe joint is provided with a moisture inlet temperature and humidity pressure sensor; and/or the humidifying part is provided with a third pipe joint, the first end of the third pipe joint is connected with the humidifying part, and the dry gas outlet is positioned at the second end of the third pipe joint; wherein, the third pipe joint is provided with a dry gas temperature, humidity and pressure sensor.
Further, the heating assembly includes a plurality of heating plates disposed at intervals in a direction away from the end cap portion.
Further, the inside of the heating portion includes a first inner wall surface and a second inner wall surface that are disposed opposite to each other and are both parallel to an arrangement direction of the plurality of heating plates, and in any two adjacent heating plates, a first side of one heating plate is connected to the first inner wall surface and a second side is disposed at an interval from the second inner wall surface, and a first side of the other heating plate is connected to the second inner wall surface and a second side is disposed at an interval from the first inner wall surface.
Further, a water storage box is arranged on the heating part and is positioned at the lower side of the heating component so as to be used for storing liquid water which is not evaporated, and a water outlet is positioned on the water storage box.
Further, the heating part includes a liquid level sensor provided in the water storage box for detecting a water level in the water storage box to control opening or closing of the drain opening according to a detection result.
Further, a flow guiding component is arranged in the heating component, the flow guiding component comprises a flow guiding surface positioned at the bottom of the inside of the heating part, and the height of the flow guiding surface gradually decreases along the direction close to the water storage box.
Further, the number of the diversion surfaces is two, and the joint of the two diversion surfaces is positioned right above the water storage box so as to form a diversion trench right above the water storage box at the joint.
Further, the dry gas inlet is connected with the dry gas inlet bypass valve to control the flow rate of the gas entering the end cover part by adjusting the dry gas inlet bypass valve; and/or the dry gas outlet is connected with the isolation valve so as to control the flow of the dry gas flowing out of the dry gas outlet by adjusting the isolation valve; and/or the wet gas inlet is connected with the wet gas inlet bypass valve to control the flow rate of the wet gas into the humidifying part by adjusting the wet gas inlet bypass valve; and/or the wet gas outlet is connected with the back pressure valve to control the flow rate of the wet gas flowing out of the humidifying part by adjusting the back pressure valve.
According to another aspect of the present utility model there is provided a fuel cell engine comprising the humidifier described above.
By applying the technical scheme of the utility model, the humidifier comprises: the end cover part is provided with a dry gas inlet and a dry gas bypass inlet, and the dry gas inlet is used for being connected with the intercooler; a filtering membrane is arranged in the end cover part so as to filter fluid flowing in from the dry gas inlet, and the dry gas inlet bypass port is used for discharging filtered substances; the heating part is connected with the end cover part and is positioned at one side of the end cover part far away from the dry gas inlet, a heating component is arranged in the heating part and is used for heating liquid water in fluid flowing through the heating part into water vapor, and a water outlet for discharging the liquid water which is not evaporated is arranged on the heating part; the humidifying part is provided with a wet gas inlet, a wet gas outlet and a dry gas outlet, the wet gas inlet and the wet gas outlet are arranged on the humidifying part at intervals, the dry gas outlet is positioned on one side of the humidifying part far away from the end cover part, and a membrane tube is arranged in the humidifying part. In this way, the humidifier of the utility model filters out small organic molecules and the like in the dry air flowing out of the intercooler through adding the filtering membrane, the filtered small organic molecules and the like can be discharged through the dry air inlet bypass port, the phenomenon that the small organic molecules react with the membrane tube and the like in the humidifying part to degrade the membrane tube is avoided, the heating part is arranged to evaporate liquid water in the dry air flowing out of the intercooler, when the humidity of the dry air is high, the heating part can be closed, so that the gas and the liquid water in the dry air play a role of gas-water separation on the heating assembly by utilizing the gravity aggregation condensation principle, the liquid water is gathered downwards and discharged, and the phenomenon that the membrane tube of the humidifier is broken due to the impact of the liquid water is avoided, and the problem that the service life of the humidifier for the fuel cell engine in the prior art is shorter than that of the engine is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
Fig. 1 shows a schematic view of a state of an embodiment of a humidifier according to the utility model in one direction in an explosive state;
Fig. 2 is a schematic view showing a state of the humidifier shown in fig. 1 in another direction in an exploded state;
Fig. 3 is a schematic view showing the structure of a heating part of the humidifier shown in fig. 1 in one direction;
FIG. 4 shows a cross-sectional view of the heating portion shown in FIG. 3;
Fig. 5 shows a side view of the heating part shown in fig. 3 in another direction;
FIG. 6 shows a side view of the heating section shown in FIG. 3;
Fig. 7 shows a control flow chart of an embodiment of a humidifier control method according to the utility model;
Fig. 8 shows a control flow chart of a second embodiment of a humidifier control method according to the invention;
Fig. 9 shows a schematic structural view of an embodiment of a fuel cell engine according to the present utility model.
Wherein the above figures include the following reference numerals:
1. An end cap portion; 101. a first pipe joint; 102. a dry gas temperature and humidity sensor; 103. a dry gas inlet; 104. a dry gas inlet bypass port; 105. a filtering membrane;
2. A heating section; 21. a first inner wall surface; 22. a second inner wall surface; 201. a water storage box; 202. a water outlet; 203. a drain valve; 204. a liquid level sensor; 205. a heating assembly; 2050. a heating plate; 206. a flow guiding surface; 207. a diversion trench; 208. an avoidance port;
3. A humidification unit; 301. a moisture outlet; 302. a second pipe joint; 303. a moisture inlet temperature and moisture pressure sensor; 304. a moisture inlet; 305. a membrane tube; 306. a third pipe joint; 307. a dry gas temperature and humidity sensor; 308. and a dry gas outlet.
10. A humidifier; 20. an intercooler; 30. an air compressor; 40. a chemical air filter; 50. a galvanic pile; 60. air.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 6, the present utility model provides a humidifier comprising: the end cover part 1, the end cover part 1 is provided with a dry gas inlet 103 and a dry gas bypass inlet 104, and the dry gas inlet 103 is used for being connected with an intercooler; a filtering membrane 105 is arranged in the end cover part 1 to filter the fluid flowing in from the dry gas inlet 103, and the dry gas inlet bypass port 104 is used for discharging filtered substances; a heating part 2, wherein the heating part 2 is connected with the end cover part 1 and is positioned at one side of the end cover part 1 away from the dry gas inlet 103, a heating component 205 is arranged in the heating part 2 and is used for heating liquid water in fluid flowing through the heating part 2 into water vapor, and a water outlet 202 is arranged on the heating part 2 and is used for discharging non-evaporated liquid water; the humidifying part 3, the humidifying part 3 is provided with a wet gas inlet 304, a wet gas outlet 301 and a dry gas outlet 308, the wet gas inlet 304 and the wet gas outlet 301 are arranged on the humidifying part 3 at intervals, the dry gas outlet 308 is positioned on one side of the humidifying part 3 far away from the end cover part 1, and a membrane tube 305 is arranged in the humidifying part 3.
In this way, the humidifier of the utility model filters out small organic molecules and the like in the dry air flowing out of the intercooler through adding the filtering membrane 105, the filtered small organic molecules and the like can be discharged through the dry air inlet bypass port 104, the phenomenon that the small organic molecules react with the membrane tube 305 and the like in the humidifying part 3 to degrade the membrane tube is avoided, the heating part 2 is arranged to evaporate liquid water in the dry air flowing out of the intercooler, when the humidity of the dry air is high, the heating part 2 can be closed, so that the gas and the liquid water in the dry air play a role of gas-water separation on the heating component 205 by utilizing the principle of gravity aggregation condensation, the liquid water is gathered downwards and discharged, the phenomenon that the membrane tube of the humidifier is broken due to the impact of the liquid water is avoided, and the problem that the humidifier for a fuel cell engine in the prior art has shorter service life compared with an engine is solved.
Wherein the outlet of the membrane tube 305 is communicated with the heating part 2, and the inlet of the membrane tube 305 is communicated with the dry gas outlet 308.
In addition, the dry gas inlet bypass 104 may also be used to vent gas when the inlet pressure is too high.
Specifically, the humidifier is a shell-and-tube humidifier, and the filtering membrane is preferably a hydrophilic filtering membrane, so that small organic silicon molecules and impurities can be filtered out, and air and water can pass through the humidifier; after the humidifier works for a long time, the connection between the end cover part 1 and the heating part 2 can be disconnected to replace the filtering membrane 105, the operation is simple and convenient, and the service life of the humidifier is ensured.
Since the temperature of the moisture inlet 304 is high, the liquid water content is low, and the pressure is low, the impact on the membrane tube 305 is small, and therefore the heating part 2 is mainly provided at the side close to the dry gas inlet 103.
Preferably, the moisture inlet 304 is located at a position of the humidifying part 3 away from the end cap part 1, and the moisture outlet 301 is located at a position of the humidifying part 3 close to the end cap part 1.
As shown in fig. 1 and 2, the end cover part 1 is provided with a first pipe joint 101, a first end of the first pipe joint 101 is connected with the end cover part 1, and a dry gas inlet 103 is positioned at a second end of the first pipe joint 101; wherein, the first pipe joint 101 is provided with a dry gas inlet temperature, humidity and pressure sensor 102; and/or the humidifying part 3 is provided with a second pipe joint 302, a first end of the second pipe joint 302 is connected with the humidifying part 3, and a moisture inlet 304 is positioned at a second end of the second pipe joint 302; wherein, the second pipe joint 302 is provided with a moisture inlet temperature and humidity pressure sensor 303; and/or the humidifying part 3 is provided with a third pipe joint 306, a first end of the third pipe joint 306 is connected with the humidifying part 3, and a dry gas outlet 308 is positioned at a second end of the third pipe joint 306; wherein, the third pipe joint 306 is provided with a dry gas outlet temperature, humidity and pressure sensor 307.
Alternatively, the dry gas temperature and humidity pressure sensor 102, the wet gas temperature and humidity pressure sensor 303 and the dry gas temperature and humidity pressure sensor 307 may be sensors with separate functions or sensors with integrated functions.
It should be noted that, the specific setting positions of the dry gas temperature and humidity pressure sensor 102, the wet gas temperature and humidity pressure sensor 303, and the dry gas temperature and humidity pressure sensor 307 may be adjusted according to the actual situation, for example, the dry gas temperature and humidity pressure sensor 307 may also be disposed downstream of the isolation valve at the air inlet of the electric stack of the fuel cell engine along the air flow direction.
As shown in fig. 4, the heating assembly 205 includes a plurality of heating plates 2050, and the plurality of heating plates 2050 are arranged at intervals in a direction away from the end cap portion 1.
Specifically, the inside of the heating portion 2 includes a first inner wall surface 21 and a second inner wall surface 22 that are disposed opposite to each other and are each parallel to the arrangement direction of the plurality of heating plates 2050, and of any adjacent two heating plates 2050, a first side of one heating plate 2050 is connected to the first inner wall surface 21 and a second side is disposed at a spacing from the second inner wall surface 22, and a first side of the other heating plate 2050 is connected to the second inner wall surface 22 and a second side is disposed at a spacing from the first inner wall surface 21.
As shown in fig. 3 to 6, the heating part 2 is provided with a water storage box 201, the water storage box 201 is positioned at the lower side of the heating assembly 205 for storing liquid water which is not evaporated, and the water discharge port 202 is positioned on the water storage box 201; the heating part 2 includes a drain valve 203 provided at the drain port 202 to open or close the drain port 202 through the drain valve 203.
As shown in fig. 4, the heating part 2 includes a liquid level sensor 204, and the liquid level sensor 204 is provided in the water storage box 201 for detecting the water level in the water storage box 201 to control the opening or closing of the water discharge port 202 according to the detection result.
Preferably, a flow guiding member is provided in the heating assembly 205, and the flow guiding member includes a flow guiding surface 206 at the bottom of the inside of the heating part 2, and the height of the flow guiding surface 206 gradually decreases in a direction approaching the water storage box 201.
Further preferably, the number of the diversion surfaces 206 is two, and the joint of the two diversion surfaces 206 is located right above the water storage box 201; the height of each diversion surface 206 gradually decreases along the direction close to the other diversion surface 206, so that a diversion groove 207 located right above the water storage box 201 is formed at the joint, and an avoidance opening 208 for avoiding water flow is processed at the position of each heating plate 2050 close to the diversion groove 207.
When the heating part is electrified, the gas flow is performed according to the arrow direction shown in fig. 4, when the heating part is not electrified/the gear is lower, the heating plate 2050 of the heating part has a diversion effect, and the heating plate 2050 performs gas-water separation by utilizing the gravity condensation aggregation principle of water, liquid water flows onto the lower diversion surface 206, the liquid water is aggregated into the water storage box 201 through the diversion surface 206 and the diversion groove 207, and when the liquid level sensor 204 alarms, the water discharge valve 203 is opened to discharge the liquid water from the water discharge outlet 202.
Specifically, the dry gas inlet 103 is connected to a dry gas inlet bypass valve to control the flow rate of gas into the end cap portion 1 by adjusting the dry gas inlet bypass valve; and/or the dry gas outlet 308 is connected with an isolation valve to control the flow of dry gas out of the dry gas outlet 308 by adjusting the isolation valve; and/or the wet gas inlet 304 is connected to the wet gas inlet bypass valve to control the flow rate of the wet gas into the humidifying part 3 by adjusting the wet gas inlet bypass valve; and/or the wet gas outlet 301 is connected to a back pressure valve to control the flow rate of the wet gas flowing out of the humidifying part 3 by adjusting the back pressure valve.
Therefore, the temperature, the humidity and the pressure of the humidifier are controlled in a proper range by controlling the heating part 2, the dry gas inlet bypass valve, the isolation valve, the wet gas inlet bypass valve, the back pressure valve and the like, the service life of the humidifier is prolonged, the working process of the fuel cell engine is flexible and adjustable, and the reliability of the fuel cell engine is improved.
In the humidifier of the present utility model, after the dry air flows out from the intercooler, the dry air enters the end cap portion 1 from the dry air inlet 103; then, the dry air after the organic small molecules are filtered by the filter membrane 105 enters the heating part 2, and the filtered organic small molecules are discharged from the dry air inlet bypass port 104 after the dry air inlet bypass valve is opened; the dry air which enters the heating part 2 and is filtered out of the small organic molecules is heated by the heating component 205 and then enters the humidifying part 3; the heated dry air which enters the humidifying part 3 and is filtered out of small organic molecules flows to a dry gas outlet 308 through a membrane pipe 305, and finally enters a reactor from the dry gas outlet 308 through an isolating valve to form wet air; the wet air after the reaction enters the wet air inlet 304 through the wet air inlet bypass valve, flows through the outside of the membrane tube 305, and is discharged from the wet air outlet 301.
The utility model provides a fuel cell engine comprising the humidifier.
As shown in fig. 9, the air circuit of the fuel cell engine includes a chemical air filter 40, an air compressor 30, an intercooler 20, a humidifier 10, and a stack 50 connected in this order, and in addition, a moisture outlet of the stack 50 is connected with a moisture inlet 304 of the humidifier 10, and external air 60 is introduced into the air circuit after being compressed by the air compressor 30.
As shown in fig. 7, the present utility model provides a humidifier control method, which is applicable to the above humidifier, and includes: detecting the real-time humidity H out1 of the gas flowing out of the dry gas outlet 308; judging whether the real-time humidity H out1 is greater than or equal to the preset minimum humidity H set do1 and less than or equal to the preset maximum humidity H set do2; when H set do1≤Hout1≤Hset do2 is carried out, judging that the fuel cell engine with the humidifier is in normal operation; when H out1＜Hset do1, increasing the humidity of the gas flowing out of the dry gas outlet 308 by adjusting at least one of the opening degree of the wet gas inlet bypass valve connected to the wet gas inlet 304 and the heating range of the heating part 2; when H out1＞Hset do2, the humidity of the gas flowing out of the dry gas outlet 308 is reduced by adjusting at least one of the opening degree of the wet gas inlet bypass valve connected to the wet gas inlet 304 and the heating range of the heating part 2.
As shown in fig. 7, the specific step of increasing the humidity of the gas flowing out of the dry gas outlet 308 by adjusting at least one of the opening degree of the wet gas inlet bypass valve connected to the wet gas inlet 304 and the heating range of the heating part 2 includes: judging whether the wet air inlet bypass valve is completely closed or not; if the wet air inlet bypass valve is not completely closed, controlling the opening degree of the wet air inlet bypass valve to reduce by M% so as to increase the wet air inflow, and continuously judging whether the real-time humidity H out1 is larger than or equal to the preset minimum humidity H set do1; if the real-time humidity H out1 is smaller than the preset minimum humidity H set do1 until the humidity inlet bypass valve is completely closed, continuing to judge whether the heating gear of the heating part 2 is opened to the maximum; if the heating gear of the heating part 2 is not opened to the maximum, controlling the heating gear of the heating part 2 to be increased by one gear to increase the evaporation capacity of the liquid water, and continuously judging whether the real-time humidity H out1 is greater than or equal to the preset minimum humidity H set do1; if the real-time humidity H out1 is still smaller than the preset minimum humidity H set do1 until the heating gear of the heating part 2 is opened to the maximum, an alarm of low humidity at the air inlet of the electric pile of the fuel cell engine where the humidifier is positioned is sent out; if the real-time humidity H out1 is greater than or equal to the preset minimum humidity H set do1 during the process of adjusting the humidity into the bypass valve and the heating portion 2, it is determined that the fuel cell engine in which the humidifier is located has been normally operated.
As shown in fig. 7, the specific step of reducing the humidity of the gas flowing out of the dry gas outlet 308 by adjusting at least one of the opening degree of the wet gas inlet bypass valve connected to the wet gas inlet 304 and the heating range of the heating part 2 includes: judging whether the heating part 2 is completely closed; if the heating part 2 is not completely closed, controlling the heating gear of the heating part 2 to be reduced by one gear to reduce the evaporation amount of the liquid water, and continuously judging whether the real-time humidity H out1 is smaller than or equal to the preset maximum humidity H set do2; if the real-time humidity H out1 is still greater than the preset maximum humidity H set do2 until the heating part 2 is completely closed, judging whether the wet air inlet bypass valve is completely opened; if the wet air inlet bypass valve is not completely opened, controlling the opening degree of the wet air inlet bypass valve to increase by M% to reduce the wet air inflow, and continuously judging whether the real-time humidity H out1 is smaller than or equal to the preset maximum humidity H set do2; if the real-time humidity H out1 is greater than the preset maximum humidity H set do2 until the humidity inlet bypass valve is fully opened, an alarm of high humidity at the air inlet of the electric stack of the fuel cell engine where the humidifier is located is sent out; if the real-time humidity H out1 is less than or equal to the preset maximum humidity H set do2 during the process of adjusting the heating portion 2 and the moisture inlet bypass valve, it is determined that the fuel cell engine in which the humidifier is located has been normally operated.
As shown in fig. 8, the present utility model further provides a humidifier control method, which is applicable to the above humidifier, and the humidifier control method includes: detecting a real-time pressure P in1 of the inflow gas from the wet gas inlet 304 and a real-time pressure P out1 of the outflow gas from the dry gas outlet 308 and calculating a dry-wet pressure difference Δp of the humidifier, wherein Δp=p out1-Pin1; judging whether the real-time pressure P out1 is larger than or equal to the preset minimum pressure P set do1 and smaller than or equal to the preset maximum pressure P set do2; when P set do1≤Pout1≤Pset do2 is reached, judging whether the dry-wet pressure difference delta P is larger than or equal to a preset pressure difference delta P 0; if delta P is smaller than preset pressure difference delta P 0, judging that the fuel cell engine with the humidifier is in normal operation; if Δp is greater than or equal to a preset differential pressure Δp 0, determining whether the opening of the back pressure valve connected to the wet gas outlet 301 is a first preset opening VO 01; if the opening of the back pressure valve is not the first preset opening VO 01, adjusting the opening of the back pressure valve to be the first preset opening VO 01, and continuously judging whether the dry-wet pressure difference delta P is larger than or equal to the preset pressure difference delta P 0; if the opening of the back pressure valve is the first preset opening VO 01, judging whether the wet gas inlet bypass valve connected with the wet gas inlet 304 is completely closed or not; if the wet air inlet bypass valve is not completely closed, controlling the opening of the wet air inlet bypass valve to be reduced by M percent, and continuously judging whether the dry and wet differential pressure delta P is larger than or equal to a preset differential pressure delta P 0; if the dry-wet pressure difference deltap is greater than or equal to the preset pressure difference deltap 0 until the wet air inlet bypass valve is completely closed, an alarm of high dry-wet pressure difference of the humidifier is sent out.
Wherein, when P out1＞Pset do2, the pressure of the gas flowing out of the dry gas outlet 308 is reduced by adjusting at least one of the opening degree of the isolation valve connected to the dry gas outlet 308, the opening degree of the dry gas inlet bypass valve connected to the dry gas inlet 103, and the rotation speed of the air compressor 30 in the fuel cell engine in which the humidifier is located; at the time of P out1＜Pset do1, the pressure of the gas flowing out of the dry gas outlet 308 is increased by adjusting at least one of the opening degree of the isolation valve connected to the dry gas outlet 308, the opening degree of the dry gas inlet bypass valve connected to the dry gas inlet 103, and the rotation speed of the air compressor 30 in the fuel cell engine where the humidifier is located.
As shown in fig. 8, the specific step of reducing the pressure of the gas flowing out of the dry gas outlet 308 by adjusting at least one of the opening degree of the isolation valve connected to the dry gas outlet 308, the opening degree of the dry gas inlet bypass valve connected to the dry gas inlet 103, and the rotational speed of the air compressor 30 includes: judging whether the opening of the isolation valve is a second preset opening VO 02 or not; if the opening of the isolation valve is not the second preset opening VO 02, adjusting the opening of the isolation valve to be the second preset opening VO 02, and continuously judging whether the real-time pressure P out1 is smaller than or equal to the preset maximum pressure P set do2; if the real-time pressure P out1 is still greater than the preset maximum pressure P set do2 until the opening of the isolation valve is the second preset opening VO 02, determining whether the rotation speed of the air compressor 30 is the preset rotation speed; if the rotational speed of the air compressor 30 is not the preset rotational speed, the rotational speed of the air compressor 30 is adjusted to be the preset rotational speed, and whether the real-time pressure P out1 is smaller than or equal to the preset maximum pressure P set do2 is continuously judged; if the real-time pressure P out1 is still greater than the preset maximum pressure P set do2 until the rotational speed of the air compressor 30 is the preset rotational speed, judging whether the dry air inlet bypass valve is completely opened; if the plurality of air inlet bypass valves are not completely opened, controlling the opening of the dry air inlet bypass valve to be increased by M percent, and continuously judging whether the real-time pressure P out1 is smaller than or equal to the preset maximum pressure P set do2; if the real-time pressure P out1 is still larger than the preset maximum pressure P set do2 until the plurality of air inlet bypass valves are completely opened, judging whether the dry-wet pressure difference delta P is larger than or equal to the preset pressure difference delta P 0; if delta P is smaller than preset pressure difference delta P 0, an alarm of high pressure of an air inlet of a pile of the fuel cell engine is sent out; if ΔP is greater than or equal to a preset pressure difference ΔP 0, judging whether the wet gas inlet bypass valve connected with the wet gas inlet 304 is completely closed; if the wet air inlet bypass valve is not completely closed, controlling the opening of the wet air inlet bypass valve to be reduced by M percent, and continuously judging whether the dry and wet differential pressure delta P is larger than or equal to a preset differential pressure delta P 0; if the dry-wet pressure difference Δp is greater than or equal to the preset pressure difference Δp 0 until the wet air intake bypass valve is completely closed, an alarm is issued that the pressure of the air inlet of the stack of the fuel cell engine is high and the dry-wet pressure difference of the humidifier is high.
As shown in fig. 8, the specific step of increasing the pressure of the gas flowing out of the dry gas outlet 308 by adjusting at least one of the opening degree of the isolation valve connected to the dry gas outlet 308, the opening degree of the dry gas inlet valve connected to the dry gas inlet 103, and the rotational speed of the air compressor 30 includes: judging whether the opening of the isolation valve is a second preset opening VO 02 or not; if the opening of the isolation valve is not the second preset opening VO 02, adjusting the opening of the isolation valve to be the second preset opening VO 02, and continuously judging whether the real-time pressure P out1 is greater than or equal to the preset minimum pressure P set do1; if the real-time pressure Pout1 is still smaller than the preset minimum pressure P set do1 until the opening of the isolation valve is the second preset opening VO 02, judging whether the rotation speed of the air compressor 30 is the preset rotation speed; if the rotational speed of the air compressor 30 is not the preset rotational speed, the rotational speed of the air compressor 30 is adjusted to be the preset rotational speed, and whether the real-time pressure P out1 is larger than or equal to the preset minimum pressure P set do1 is continuously judged; if the real-time pressure P out1 is still smaller than the preset minimum pressure P set do1 until the rotational speed of the air compressor 30 is the preset rotational speed, judging whether the dry air inlet bypass valve is completely closed; if the plurality of air inlet bypass valves are not completely closed, controlling the opening degree of the dry air inlet bypass valves to be reduced by M percent, and continuously judging whether the real-time pressure P out1 is larger than or equal to the preset minimum pressure P set do1; if the real-time pressure P out1 is still smaller than the preset minimum pressure P set do1 until the air inlet bypass valves are completely closed, judging whether the dry-wet pressure difference delta P is larger than or equal to the preset pressure difference delta P 0; if delta P is smaller than preset pressure difference delta P 0, an alarm of low pressure of an air inlet of a pile of the fuel cell engine is sent out; if ΔP is greater than or equal to a preset pressure difference ΔP 0, judging whether the wet gas inlet bypass valve connected with the wet gas inlet 304 is completely closed; if the wet air inlet bypass valve is not completely closed, controlling the opening of the wet air inlet bypass valve to be reduced by M percent, and continuously judging whether the dry and wet differential pressure delta P is larger than or equal to a preset differential pressure delta P 0; if the dry-wet pressure difference Δp is greater than or equal to the preset pressure difference Δp 0 until the wet air intake bypass valve is completely closed, an alarm is issued that the pressure of the air inlet of the stack of the fuel cell engine is low and the dry-wet pressure difference of the humidifier is high.
Specifically, M% in the humidifier control method may be 10%, or may be other values such as 20% and 25%, which is specifically determined by the output power; the preset pressure difference Δp 0 may be 100KPa, or may be another value.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
The humidifier of the present utility model comprises: the end cover part 1, the end cover part 1 is provided with a dry gas inlet 103 and a dry gas bypass inlet 104, and the dry gas inlet 103 is used for being connected with an intercooler; a filtering membrane 105 is arranged in the end cover part 1 to filter the fluid flowing in from the dry gas inlet 103, and the dry gas inlet bypass port 104 is used for discharging filtered substances; a heating part 2, wherein the heating part 2 is connected with the end cover part 1 and is positioned at one side of the end cover part 1 away from the dry gas inlet 103, a heating component 205 is arranged in the heating part 2 and is used for heating liquid water in fluid flowing through the heating part 2 into water vapor, and a water outlet 202 is arranged on the heating part 2 and is used for discharging non-evaporated liquid water; the humidifying part 3, the humidifying part 3 is provided with a wet gas inlet 304, a wet gas outlet 301 and a dry gas outlet 308, the wet gas inlet 304 and the wet gas outlet 301 are arranged on the humidifying part 3 at intervals, the dry gas outlet 308 is positioned on one side of the humidifying part 3 far away from the end cover part 1, and a membrane tube 305 is arranged in the humidifying part 3. In this way, the humidifier of the utility model filters out small organic molecules and the like in the dry air flowing out of the intercooler through adding the filtering membrane 105, the filtered small organic molecules and the like can be discharged through the dry air inlet bypass port 104, the phenomenon that the small organic molecules react with the membrane tube 305 and the like in the humidifying part 3 to degrade the membrane tube is avoided, the heating part 2 is arranged to evaporate liquid water in the dry air flowing out of the intercooler, when the humidity of the dry air is high, the heating part 2 can be closed, so that the gas and the liquid water in the dry air play a role of gas-water separation on the heating component 205 by utilizing the principle of gravity aggregation condensation, the liquid water is gathered downwards and discharged, the phenomenon that the membrane tube of the humidifier is broken due to the impact of the liquid water is avoided, and the problem that the humidifier for a fuel cell engine in the prior art has shorter service life compared with an engine is solved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A humidifier, comprising:
The air conditioner comprises an end cover part (1), wherein a dry air inlet (103) and a dry air bypass inlet (104) are arranged on the end cover part (1), and the dry air inlet (103) is used for being connected with an intercooler; a filtering membrane (105) is arranged in the end cover part (1) so as to filter the fluid flowing in from the dry gas inlet (103), and the dry gas inlet bypass port (104) is used for discharging filtered substances;
a heating part (2), wherein the heating part (2) is connected with the end cover part (1) and is positioned at one side of the end cover part (1) away from the dry gas inlet (103), a heating component (205) is arranged in the heating part (2) and is used for heating liquid water in fluid flowing through the heating part (2) into water vapor, and a water outlet (202) for discharging non-evaporated liquid water is arranged on the heating part (2);
Humidification portion (3), be provided with moisture import (304), moisture export (301) and dry gas export (308) on humidification portion (3), moisture import (304) and moisture export (301) interval set up on humidification portion (3), dry gas export (308) are located humidification portion (3) keep away from one side of end cover portion (1), be provided with membrane tube (305) in humidification portion (3).
2. The humidifier of claim 1, wherein the air conditioner further comprises a fan,
The end cover part (1) is provided with a first pipe joint (101), a first end of the first pipe joint (101) is connected with the end cover part (1), and the dry gas inlet (103) is positioned at a second end of the first pipe joint (101); wherein, the first pipe joint (101) is provided with a dry gas inlet temperature, humidity and pressure sensor (102); and/or
The humidifying part (3) is provided with a second pipe joint (302), a first end of the second pipe joint (302) is connected with the humidifying part (3), and the moisture inlet (304) is positioned at a second end of the second pipe joint (302); wherein, the second pipe joint (302) is provided with a moisture inlet temperature and humidity pressure sensor (303); and/or
A third pipe joint (306) is arranged on the humidifying part (3), a first end of the third pipe joint (306) is connected with the humidifying part (3), and the dry gas outlet (308) is positioned at a second end of the third pipe joint (306); and a dry gas temperature, humidity and pressure sensor (307) is arranged on the third pipe joint (306).
3. The humidifier according to claim 1, wherein the heating assembly (205) comprises a plurality of heating plates (2050), the plurality of heating plates (2050) being spaced apart in a direction away from the end cap portion (1).
4. A humidifier according to claim 3, wherein the interior of the heating portion (2) includes a first inner wall surface (21) and a second inner wall surface (22) which are disposed opposite to each other and each parallel to the arrangement direction of the plurality of heating plates (2050), and of any adjacent two heating plates (2050), a first side of one heating plate (2050) is connected to the first inner wall surface (21) and a second side is disposed at a distance from the second inner wall surface (22), and a first side of the other heating plate (2050) is connected to the second inner wall surface (22) and a second side is disposed at a distance from the first inner wall surface (21).
5. Humidifier according to claim 1, wherein a water storage box (201) is provided on the heating part (2), the water storage box (201) being located at the lower side of the heating assembly (205) for storing liquid water which is not evaporated, the water discharge opening (202) being located on the water storage box (201).
6. The humidifier according to claim 5, wherein the heating part (2) includes a liquid level sensor (204), the liquid level sensor (204) being provided in the water storage box (201) for detecting a water level in the water storage box (201) to control opening or closing of the water discharge opening (202) according to a detection result.
7. Humidifier according to claim 5, wherein a flow guiding member is provided in the heating assembly (205), the flow guiding member comprising a flow guiding surface (206) at the bottom of the interior of the heating portion (2), the height of the flow guiding surface (206) gradually decreasing in a direction approaching the water storage box (201).
8. The humidifier according to claim 7, wherein the number of the diversion surfaces (206) is two, and a junction of the two diversion surfaces (206) is located directly above the water storage box (201) to form a diversion trench (207) located directly above the water storage box (201) at the junction.
9. The humidifier of claim 1, wherein the air conditioner further comprises a fan,
The dry gas inlet (103) is connected with a dry gas inlet bypass valve so as to control the flow rate of gas entering the end cover part (1) by adjusting the dry gas inlet bypass valve; and/or
The dry gas outlet (308) is connected with an isolation valve to control the flow of dry gas flowing out of the dry gas outlet (308) by adjusting the isolation valve; and/or
-Said wet gas inlet (304) is connected to a wet gas inlet bypass valve for controlling the flow of wet gas into said humidification portion (3) by adjusting said wet gas inlet bypass valve; and/or
The wet gas outlet (301) is connected with a back pressure valve to control the flow rate of wet gas flowing out of the humidifying part (3) by adjusting the back pressure valve.
10. A fuel cell engine comprising the humidifier of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322643175.1U CN221125996U (en) | 2023-09-27 | 2023-09-27 | Humidifier and fuel cell engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322643175.1U CN221125996U (en) | 2023-09-27 | 2023-09-27 | Humidifier and fuel cell engine |
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| Publication Number | Publication Date |
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| CN221125996U true CN221125996U (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322643175.1U Active CN221125996U (en) | 2023-09-27 | 2023-09-27 | Humidifier and fuel cell engine |
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| Country | Link |
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| CN (1) | CN221125996U (en) |
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2023
- 2023-09-27 CN CN202322643175.1U patent/CN221125996U/en active Active
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