CN215731805U - Hydrogen fuel cell engine tail row condensation water trap - Google Patents

Hydrogen fuel cell engine tail row condensation water trap Download PDF

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Publication number
CN215731805U
CN215731805U CN202121908871.5U CN202121908871U CN215731805U CN 215731805 U CN215731805 U CN 215731805U CN 202121908871 U CN202121908871 U CN 202121908871U CN 215731805 U CN215731805 U CN 215731805U
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fuel cell
cell engine
hydrogen fuel
heat exchanger
water
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CN202121908871.5U
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骆再根
姚鹏
熊彪
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Cowell Technology Co ltd
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Hefei Kewei Power System Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

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Abstract

The utility model relates to the technical field of hydrogen fuel cell engine testing, in particular to a hydrogen fuel cell engine tail exhaust condensation water removal device, which comprises a heat exchanger and a water collector; the heat exchanger is provided with a tail discharge inlet and a condensation outlet, the tail discharge inlet can be connected with a tail discharge of the hydrogen fuel cell engine, and the condensation outlet is connected with the water collector; the bottom of water collector is provided with the drain pipe, the top of water collector sets up the blast pipe. The utility model has the advantages that: when the national standard loading performance test of the fuel cell engine system is carried out, the generated water vapor can be fully discharged and gas-liquid separation is realized, so that the tail exhaust gas-liquid separation device of the fuel cell system is simple, efficient and low in cost.

Description

Hydrogen fuel cell engine tail row condensation water trap
Technical Field
The utility model relates to the technical field of hydrogen fuel cell engine testing, in particular to a hydrogen fuel cell engine tail exhaust condensation water removal device.
Background
The fuel cell engine is a system device which takes hydrogen and oxygen as raw fuels and forms electric energy by a series of internal electrochemical reactions (physical-chemical conversion) processes of a gas medium in a chemical reaction mode. The fuel cell has high energy production conversion efficiency, high conversion rate, cleanness, environmental protection and less discharged waste; because the main raw fuel is hydrogen and oxygen. The main components of the discharged tail gas are water, hydrogen and oxygen (gas-water mixture).
In the process of carrying out national standard loading performance test on the fuel cell engine system, the hydrogen fuel cell generates water vapor after hydrogen-oxygen electrochemical reaction. The steam that produces needs to be discharged completely in practical application, and along with fuel cell system operating duration's increase, exhaust tail discharge steam content constantly increases, until reaching saturated humidity, produces the condensate water, and the constant accumulation of condensate water can influence the safety in utilization of whole fuel cell system electrical apparatus, causes the potential safety hazard of electrocution. Meanwhile, the tail exhaust loop of the engine can generate a large amount of water-gas mixtures (commonly called white smoke), the mixed white smoke is discharged to the atmospheric environment through a peripheral tail discharge pipeline, condensed water can be accumulated due to natural condensation of tail exhaust gas in the process and flows back to the tail exhaust pipeline, and if the wiring of the peripheral construction tail exhaust pipeline is too long, the inner wall of the pipeline is easy to freeze when the tail exhaust pipeline is used in winter, the whole pipeline is blocked, and the normal test operation of a fuel cell system is not facilitated.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows:
the technical problem that generated water vapor can not be fully discharged and gas-liquid separation can be realized when national standard loading performance test of a fuel cell engine system is carried out in the prior art is solved.
The utility model solves the technical problems through the following technical means: a hydrogen fuel cell engine tail exhaust condensation water removing device comprises a heat exchanger and a water collector;
the heat exchanger is provided with a tail discharge inlet and a condensation outlet, the tail discharge inlet can be connected with a tail discharge of the hydrogen fuel cell engine, and the condensation outlet is connected with the water collector;
the bottom of water collector is provided with the drain pipe, the top of water collector sets up the blast pipe.
When the hydrogen cell engine tail exhaust condensation water removal device is practically applied, a tail exhaust inlet is connected with a hydrogen cell engine tail exhaust, generated water vapor enters through the tail exhaust inlet and is condensed in a heat exchanger, then gas and liquid flow out through a condensation outlet and enter a water collector, the liquid flows downwards in the water collector to a drain pipe and is finally discharged, the gas is discharged through an exhaust pipe, and then gas-liquid separation is realized.
Preferably, the heat exchanger adopts a plate heat exchanger.
Optimized, be provided with cooling water entry, cooling water outlet on the heat exchanger, the inlet tube is installed to the cooling water entry, and the wet return is installed to the cooling water outlet, and inlet tube, wet return are connected to peripheral hardware cooling water source.
Optimally, the water inlet pipe is provided with a regulating valve, and the regulating valve can regulate the flow of cooling water in the water inlet pipe.
When testing, the testing personnel is guaranteeing under the errorless condition of mounted position, and in the in-service use process, can adjust external cooling water flow size through the governing valve, to the tail gas condensation effect of engine mixed exhaust to the heat exchanger in, carry out closed loop regulation control, avoid external cooling water waste.
Optimized, inlet tube, wet return set up a plurality of sections pipelines respectively, and each section pipeline tip is provided with the fast-assembling chuck, and is fixed through the clamp between two adjacent fast-assembling chucks.
Preferably, the heat exchanger further comprises a support, the heat exchanger is obliquely arranged on the support, and the position of the tail discharge inlet is higher than that of the condensation outlet.
The heat exchanger is installed in an inclined mode, the position of the condensation outlet is lower, liquid can flow out conveniently, the fuel cell engine is guaranteed to be under the high-load running working condition, after tail exhaust gas is condensed by the heat exchanger, formed liquid water can be fully discharged in time, and the fuel cell engine cannot be refilled in a reverse flow mode.
Preferably, a mounting plate is vertically arranged on one side of the support, and the heat exchanger is connected with the mounting plate through screws.
Preferably, the water collector is connected with the exhaust pipe through a hose.
Preferably, the bottom of the water collector is provided with two branch pipes, the two branch pipes are respectively provided with a valve, and the two branch pipes are communicated with the drain pipe after being converged.
Optimally, a high liquid level detection piece and a low liquid level detection piece are arranged on the water collector;
still include the control unit, high liquid level detection spare, low liquid level detection spare are connected to the control unit, the valve is controlled by the control unit.
The two valves are normally closed valves, when the liquid level is low to the position of the low liquid level detection part, the control unit controls the two valves to be closed, when the liquid level reaches the position of the high liquid level detection part, the control unit controls the two valves to be opened, when the liquid level is between the high liquid level and the low liquid level, the two valves are opened to continuously drain water, and the two valves are closed until the liquid level is low.
The utility model has the advantages that:
1. when the hydrogen cell engine tail exhaust condensation water removal device is practically applied, a tail exhaust inlet is connected with a hydrogen cell engine tail exhaust, generated water vapor enters through the tail exhaust inlet and is condensed in a heat exchanger, then gas and liquid flow out through a condensation outlet and enter a water collector, the liquid flows downwards in the water collector to a drain pipe and is finally discharged, the gas is discharged through an exhaust pipe, and then gas-liquid separation is realized.
2. When testing, the testing personnel is guaranteeing under the errorless condition of mounted position, and in the in-service use process, can adjust external cooling water flow size through the governing valve, to the tail gas condensation effect of engine mixed exhaust to the heat exchanger in, carry out closed loop regulation control, avoid external cooling water waste.
3. The heat exchanger is installed in an inclined mode, the position of the condensation outlet is lower, liquid can flow out conveniently, the fuel cell engine is guaranteed to be under the high-load running working condition, after tail exhaust gas is condensed by the heat exchanger, formed liquid water can be fully discharged in time, and the fuel cell engine cannot be refilled in a reverse flow mode.
4. The two valves are normally closed valves, when the liquid level is low to the position of the low liquid level detection part, the control unit controls the two valves to be closed, when the liquid level reaches the position of the high liquid level detection part, the control unit controls the two valves to be opened, when the liquid level is between the high liquid level and the low liquid level, the two valves are opened to continuously drain water, and the two valves are closed until the liquid level is low.
Drawings
Fig. 1 and 2 are perspective views of a hydrogen fuel cell engine tail condensation and water removal device in different viewing angles according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a hydrogen fuel cell engine tail condensate removal device in accordance with an embodiment of the present invention; wherein,
a heat exchanger-1; tail discharge inlet-11; a condensation outlet-12; a cooling water inlet-13; a cooling water outlet-14; a water collector-2; a branch-21; a valve-22;
a drain pipe-3;
an exhaust pipe-4; a hose-41;
a water inlet pipe-5;
a water return pipe-6;
a fast-assembling chuck-7;
a hoop-8;
a support-9; and (7) mounting a plate-91.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the hydrogen fuel cell engine tail exhaust condensation and water removal device comprises a heat exchanger 1, a water collector 2, a drain pipe 3, an exhaust pipe 4, a water inlet pipe 5, a water return pipe 6, a quick-assembly chuck 7, a clamp 8 and a support 9.
The heat exchanger 1 is provided with a tail row inlet 11 and a condensation outlet 12, the tail row inlet 11 can be connected with a tail row of a hydrogen fuel cell engine, and the condensation outlet 12 is connected with the water collector 2; the bottom of water collector 2 is provided with stainless steel's drain pipe 3, and is concrete, the bottom of water collector 2 sets up two stainless steel's branch pipes 21, respectively sets up a valve 22 on two branch pipes 21, and valve 22 is the solenoid valve, and two branch pipes 21 join the back and communicate with drain pipe 3.
As shown in fig. 1, an exhaust pipe 4 made of stainless steel is provided on the top of the water collector 2, and the water collector 2 and the exhaust pipe 4 are connected by a hose 41.
In this embodiment, the heat exchanger 1 is a plate heat exchanger. As shown in fig. 2, the heat exchanger 1 is mounted on the frame 9 at an angle of preferably 15 °, and the tail inlet 11 is located at a higher level than the condensation outlet 12. The heat exchanger is characterized in that a mounting plate 91 is vertically arranged on one side of the support 9, and the heat exchanger 1 is connected with the mounting plate 91 through screws. Support 9 adopts the welded type aluminium system steelframe fixed, and the quality is light, and the steadiness is good, installation fixed mode: the heat exchanger is fixed on the prefabricated steel frame in advance, the steel frame is fixed on the bottom plate of the testing system in a whole mode after the heat exchanger is accurately checked and positioned through the fixing holes welded in advance, the steel frame is fixed on the bottom plate of the testing system in a whole mode, the torque wrench and the bottom plate are accurately screwed and fixed, and the overall structure of the frame cannot deviate. The integrated installation of operating personnel in the cabinet body is facilitated.
The plate heat exchanger in the embodiment is a brazed plate heat exchanger, and the welding process of the plate heat exchanger comprises the following steps: is made by adopting a brazing type compression joint; the heat exchanger is made of the following materials: 316L; inside-outside flow pattern: reverse flow; plate straightness: not more than 2L/1000, heat exchangeThe heat exchange area of the single plate of the device is as follows: 0.19m2The maximum thermal load: 130 KW; the number of plates: 90 pieces of the Chinese medicinal composition; the design pressure is 3MpaMax and 4.5 Mpa; design temperature: -196 to 225 ℃; plate heat exchanger business turn over hard tube connection interface: and adopting a quick-mounting chuck for welding. The flow resistance of the plate heat exchanger is less than 5Kpa, and the tail exhaust gas with low resistance can well enter an internal flow channel of the plate heat exchanger.
The tail discharge inlet 11 meets a maximum inlet temperature of 90 ℃ media: the water and the gas are mixed to meet the maximum air inflow: 12000l/min (standard condition), and the liquid water is 25 ℃ after condensation.
As shown in fig. 1, a cooling water inlet 13 and a cooling water outlet 14 are arranged on the heat exchanger 1, a stainless steel water inlet pipe 5 is installed at the cooling water inlet 13, an adjusting valve is arranged on the water inlet pipe 5, the adjusting valve adopts a manual ball valve, and the adjusting valve can adjust the flow of cooling water in the water inlet pipe 5. The cooling water outlet 14 is provided with a water return pipe 6 made of stainless steel, and the water inlet pipe 5 and the water return pipe 6 are connected to an external cooling water source.
As shown in fig. 1, the water inlet pipe 5 and the water return pipe 6 are respectively provided with a plurality of sections of pipelines, the end parts of each section of pipeline are provided with fast-assembling chucks 7, and two adjacent fast-assembling chucks 7 are fixed through clamps 8.
Further, in this embodiment, all adopt fast-assembling chuck and clamp complex mounting means to install between each pipeline and the heat exchanger 1. In this embodiment, all stainless steel metal pipeline fixed modes adopt double-hole hexagon socket head cap pipeline fixation clamp to fix.
Further, be provided with high liquid level detection spare and low liquid level detection spare on the water collector 2, high liquid level detection spare and low liquid level detection spare all adopt the photoelectric liquid level type to detect the switch, high liquid level detection spare, low liquid level detection spare are connected to the control unit, valve 22 is controlled by the control unit, and the control unit adopts PLC.
Further, as shown in fig. 1, a transparent liquid level pipe 23 is vertically disposed on the water collector 2 to visually observe the liquid level.
The working principle is as follows:
with reference to fig. 1-3, in the actual application of the hydrogen fuel cell engine tail exhaust condensation water removal device, the tail exhaust inlet 11 is connected with the hydrogen fuel cell engine tail exhaust, the generated water vapor enters through the tail exhaust inlet 11 and is condensed in the heat exchanger 1, then the gas and the liquid flow out through the condensation outlet 12 and enter the water collector 2, the liquid flows downwards in the water collector 2 to the drain pipe 3 and is finally discharged, the gas is discharged through the exhaust pipe 4, so that the gas-liquid separation is realized, and when the national standard loading performance test of a fuel cell engine system is performed, the generated water vapor can be fully discharged and the gas-liquid separation is realized.
When testing, the testing personnel is guaranteeing under the errorless condition of mounted position, and in the in-service use process, can adjust external cooling water flow size through the governing valve, to the tail gas condensation effect of engine mixed exhaust to the heat exchanger in, carry out closed loop regulation control, avoid external cooling water waste. The heat exchanger 1 is obliquely installed, the position of the condensation outlet 12 is lower, liquid can flow out conveniently, the fuel cell engine is guaranteed to be under a high-load running working condition, after tail exhaust gas is condensed by the heat exchanger, formed liquid water can be fully discharged in time, and the fuel cell engine cannot be refilled in a reverse flow mode. The two valves 22 are normally closed valves, when the liquid level is lower than the position of the low liquid level detection part, the control unit controls the two valves 22 to be closed, when the liquid level reaches the position of the high liquid level detection part, the control unit controls the two valves 22 to be opened, when the liquid level is between the high liquid level and the low liquid level, the two valves 22 are opened to continuously drain water, and when the liquid level is lower than the low liquid level, the two valves 22 are closed.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a hydrogen fuel cell engine tail condensation water trap which characterized in that: comprises a heat exchanger (1) and a water collector (2);
a tail row inlet (11) and a condensation outlet (12) are arranged on the heat exchanger (1), the tail row inlet (11) can be connected with a tail row of a hydrogen fuel cell engine, and the condensation outlet (12) is connected with the water collector (2);
the bottom of water collector (2) is provided with drain pipe (3), the top of water collector (2) sets up blast pipe (4).
2. The hydrogen fuel cell engine tail condensate removal device of claim 1, wherein: the heat exchanger (1) adopts a plate heat exchanger.
3. The hydrogen fuel cell engine tail condensate removal device of claim 2, wherein: be provided with cooling water entry (13), cooling water export (14) on heat exchanger (1), inlet tube (5) are installed in cooling water entry (13), and wet return (6) are installed in cooling water export (14), and inlet tube (5), wet return (6) are connected to peripheral hardware cooling water source.
4. The hydrogen fuel cell engine tail condensation water removal device according to claim 3, characterized in that: be provided with the governing valve on inlet tube (5), the flow of cooling water in inlet tube (5) can be adjusted to the governing valve.
5. The hydrogen fuel cell engine tail condensation water removal device according to claim 3, characterized in that: inlet tube (5), wet return (6) set up a plurality of sections pipelines respectively, each section pipeline tip is provided with fast-assembling chuck (7), fixes through clamp (8) between two adjacent fast-assembling chucks (7).
6. The hydrogen fuel cell engine tail condensate removal device of claim 1, wherein: the heat exchanger is characterized by further comprising a support (9), the heat exchanger (1) is obliquely arranged on the support (9), and the position of the tail discharge inlet (11) is higher than that of the condensation outlet (12).
7. The hydrogen fuel cell engine tail condensation water removal device according to claim 6, characterized in that: one side of the support (9) is vertically provided with a mounting plate (91), and the heat exchanger (1) is connected with the mounting plate (91) through a screw.
8. The hydrogen fuel cell engine tail condensate removal device of claim 1, wherein: the water collector (2) is connected with the exhaust pipe (4) through a hose (41).
9. The hydrogen fuel cell engine tail condensate removal device of claim 1, wherein: the bottom of the water collector (2) is provided with two branch pipes (21), the two branch pipes (21) are respectively provided with a valve (22), and the two branch pipes (21) are communicated with the drain pipe (3) after being converged.
10. The hydrogen fuel cell engine tail condensate removal device of claim 9, wherein: a high liquid level detection piece and a low liquid level detection piece are arranged on the water collector (2);
still include the control unit, high liquid level detection spare, low liquid level detection spare are connected to the control unit, valve (22) are controlled by the control unit.
CN202121908871.5U 2021-08-13 2021-08-13 Hydrogen fuel cell engine tail row condensation water trap Active CN215731805U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121908871.5U CN215731805U (en) 2021-08-13 2021-08-13 Hydrogen fuel cell engine tail row condensation water trap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121908871.5U CN215731805U (en) 2021-08-13 2021-08-13 Hydrogen fuel cell engine tail row condensation water trap

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CN215731805U true CN215731805U (en) 2022-02-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114899461A (en) * 2022-03-30 2022-08-12 杭叉集团股份有限公司 Tail exhaust system of hydrogen fuel cell forklift

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114899461A (en) * 2022-03-30 2022-08-12 杭叉集团股份有限公司 Tail exhaust system of hydrogen fuel cell forklift
CN114899461B (en) * 2022-03-30 2024-01-26 杭叉集团股份有限公司 Hydrogen fuel cell forklift tail row system

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Address after: 230088 No.8 DALONGSHAN Road, hi tech Zone, Hefei City, Anhui Province

Patentee after: Cowell Technology Co.,Ltd.

Address before: 230088 No.8 DALONGSHAN Road, hi tech Zone, Hefei City, Anhui Province

Patentee before: Hefei Kewei Power System Co.,Ltd.

CP01 Change in the name or title of a patent holder