Holding device, electrochemical system and method

Abstract

The invention is based on a holding device (10) for at least one fluid conveying unit (12, 14) of an electrochemical system (16), with at least one support unit (18) for at least partially absorbing a weight force of the at least one fluid conveying unit (12, 14). It is proposed that the holding device (10) comprises at least one anti-vibration unit (20) in order to counteract the transmission of vibrations from the at least one fluid conveying unit (12, 14) to the support unit (18).

Description

State of the art

[0001] A holding device for at least one fluid conveying unit of an electrochemical system, with at least one support unit for at least partially absorbing a weight force of the at least one fluid conveying unit, has already been proposed. Disclosure of the invention

[0002] The invention is based on a holding device for at least one fluid conveying unit of an electrochemical system, with at least one support unit for at least partially absorbing a weight force of the at least one fluid conveying unit.

[0003] It is proposed that the holding device comprise an anti-vibration unit to counteract the transmission of vibrations from the fluid delivery unit to the support unit. The at least one fluid delivery unit is preferably provided to supply at least one electrochemical cell, in particular a fuel cell and / or an electrolysis cell, of the electrochemical system with a process fluid, in particular an oxygen-containing process fluid, for example atmospheric air, synthetic air, or pure oxygen. The holding device is preferably provided to accommodate the fluid delivery unit designed as a blower, fan, or compressor.The holding device is preferably intended to be fastened to a supporting structural element of the electrochemical system, such as a housing, a wall, a mounting plate, a frame, a rack or the like, and in particular to fix the at least one fluid conveying unit relative to the structural element.

[0004] The support unit preferably comprises at least one carrier plate which is intended to absorb at least a substantial portion of a weight force of the at least one fluid delivery unit. A substantial portion should preferably be understood to mean a portion of at least 25%, preferably at least 50%, particularly preferably at least 75%. The carrier plate is particularly designed to support a mass of at least 1 kg, preferably of at least 1.5 kg, particularly preferably of at least 2 kg. The carrier plate preferably has at least one recess which is preferably intended to accommodate a fluid outlet or a fluid outlet of the fluid delivery unit. The at least one recess in the carrier plate is preferably intended to be aligned coaxially with a rotational axis of the fluid delivery unit. The carrier plate is preferably intended to be aligned horizontally for operation of the fluid delivery unit.Particularly preferably, the support plate is provided for setting up the fluid delivery unit. Alternatively, the support plate is provided for suspending the fluid delivery unit. The support unit preferably comprises at least one fastening plate for fixing the support unit to the load-bearing support element of the electrochemical system. The fastening plate and the support plate are preferably formed as a single piece. A main extension plane of the fastening plate and a main extension plane of the support plate preferably run at least substantially perpendicular to one another. A "main extension plane" of a structural unit is to be understood in particular as a plane which is parallel to a largest side surface of a smallest imaginary cuboid which just completely encloses the structural unit, and in particular runs through the center of the cuboid.The support unit preferably has an L-shaped profile in a cross-section perpendicular to the main extension plane of the support plate and in a cross-section perpendicular to the main extension plane of the fastening plate. The fastening plate can, for example, be designed to be attached to the supporting structural element by screwing, riveting, welding, or the like.

[0005] “Substantially parallel” is to be understood here in particular as an alignment of a direction relative to a reference direction, in particular in a plane, wherein the direction has a deviation from the reference direction of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°. The expression “substantially perpendicular” is to be understood here in particular as an alignment of a direction relative to a reference direction, wherein the direction and the reference direction, in particular viewed in a projection plane, enclose an angle of 90° and the angle has a maximum deviation of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°. “Provided” is to be understood in particular as specially programmed, designed and / or equipped.The fact that an object is intended for a specific function should be understood in particular to mean that the object fulfils and / or executes this specific function in at least one application and / or operating state.

[0006] The anti-vibration unit preferably comprises at least one vibration isolation element to keep the vibration transmission capacity of the holding device below a threshold value and / or at least one vibration damping element to dissipate vibration energy. The anti-vibration unit is particularly intended to counteract the transmission of vibrations from the fluid delivery unit to the supporting structural element of the electrochemical system.

[0007] The inventive design advantageously allows the operating noise of the electrochemical system to be kept low. Furthermore, wear on the electrochemical system can be advantageously kept low.

[0008] It is further proposed that the anti-vibration unit comprise at least one plate-shaped vibration isolation element which is arranged on the support unit and comprises at least one recess for receiving the at least one fluid delivery unit. The vibration isolation element is preferably arranged flatly on the support plate. A main extension plane of the vibration element is preferably aligned at least substantially parallel to the main extension plane of the support plate. The vibration isolation element is preferably designed to withstand a force, in particular a weight force of the fluid delivery unit, of at least 10 N, preferably at least 15 N, particularly preferably at least 20 N. The vibration isolation element is preferably provided to interrupt a transmission path for vibrations from the fluid delivery unit to the support plate.Particularly preferably, the support plate and the vibration isolation element have an at least substantially congruent cross-section in a parallel projection along a normal to the main extension direction of the support plate. In particular, an overlap region of the cross sections preferably corresponds to at least 75%, preferably at least 85%, particularly preferably at least 90% of a surface area of the cross section of the support plate and / or a surface area of the cross section of the vibration isolation element. Alternatively, the larger support plate has at least one designated arrangement region for the fluid delivery unit, in which the smaller isolation damping element is arranged. Preferably, the recess in the support plate and the recess in the vibration isolation element are arranged adjacent to one another. Due to the design according to the invention, the fluid delivery unit can be advantageously held securely and quietly at the same time.

[0009] It is further proposed that the vibration isolation element comprise at least one further recess for accommodating a further fluid delivery unit of the electrochemical system. The carrier plate preferably has a further recess for accommodating the further fluid delivery unit of the electrochemical system. The carrier plate and in particular the vibration element are preferably E-shaped in order to form the recesses. A maximum longitudinal extent, a minimum distance between the recesses and a load-bearing capacity of the carrier plate and in particular of the vibration isolation element are preferably designed to support at least two separately formed fluid delivery units with at least substantially parallel axes of rotation. The maximum longitudinal extent of the carrier plate and in particular of the damping isolation element preferably runs at least substantially parallel to the main extension direction of the fastening plate.In an alternative embodiment, the support plate has the aforementioned at least two recesses, and the holding device comprises at least two vibration isolation elements, each with a recess, wherein the vibration isolation elements are arranged at a distance from one another at the recesses of the support plate. The embodiment according to the invention allows a fluid supply system comprising several fluid delivery units to be advantageously operated with low vibration and secured with advantageously few components.

[0010] It is further proposed that the anti-vibration unit comprise at least one vibration damping unit for dissipating vibration energy of the at least one fluid delivery unit. The vibration damping unit is preferably arranged at a distance from the vibration isolating element. The vibration damping unit preferably comprises at least one at least partially elastic damping element for dissipating the vibration energy, for example a damping element made of rubber. The damping element is designed in particular as a shock absorber. The vibration damping unit preferably comprises at least one coupling element for physical contact with the at least one fluid delivery unit. The coupling element is preferably provided to at least partially encompass the fluid delivery unit. The coupling element is preferably provided to encompass the fluid delivery unit in a plane perpendicular to the axis of rotation of the fluid delivery unit.The coupling element preferably forms a receiving area for arranging the fluid conveying unit, which extends in a main extension plane of the coupling element around a center point over an angle of at least more than 90°, preferably of at least 180°, particularly preferably of at least 270°. The coupling element is designed, for example, as a clamp, in particular as a screw clamp, alternatively as a clamping clamp, as a U-shaped gripping element, or the like. The damping element is preferably arranged outside the receiving area of the coupling element and mechanically connected to the coupling element. Alternatively, the damping element or an additional damping element is arranged in the receiving area, for example in the form of a, in particular annular, rubber coating.Due to the design according to the invention, a movement amplitude of the fluid conveying unit can advantageously be kept small, in particular without distributing and / or dissipating the vibration energy via the electrochemical system.

[0011] It is further proposed that the anti-vibration unit comprise at least one further vibration damping unit arranged at a distance from the vibration damping unit for dissipating vibration energy of at least one, in particular the already mentioned, further fluid delivery unit of the electrochemical system. The further vibration damping unit is preferably constructed and / or arranged analogously, in particular mirror-symmetrically, to the vibration damping unit. The vibration damping unit and the further vibration damping unit preferably do not comprise any common components. The configuration according to the invention advantageously allows for a transverse transmission of vibrations between the fluid delivery units to be kept low.

[0012] It is further proposed that the at least one vibration damping unit comprises at least one coupling element, in particular the one already mentioned, for contact with the at least one fluid conveying unit, at least one damping element, in particular the one already mentioned, and at least one transmission element for transmitting vibrations from the coupling element to the damping element. The damping unit preferably comprises a support element which is intended to be fastened to the load-bearing structural element. The damping element is preferably arranged on the support element. The damping element is preferably arranged along a damping direction between the support element and the transmission element, which is oriented at least substantially perpendicular to a main extension plane of the coupling element. The damping element is preferably arranged at a distance from the coupling element.The transmission element is preferably rigidly connected to the coupling element. The inventive design allows the damping element to be easily scaled depending on the application.

[0013] It is further proposed that the at least one damping element and the at least one transmission element are arranged one behind the other along a direction, in particular the already mentioned damping direction, which runs at least substantially parallel to a normal of a main support surface of the support unit. The main support surface is preferably the largest outer side of the carrier plate. Preferably, the damping isolation unit is arranged on the main support surface. In particular, the coupling element and the damping element are arranged along the direction, in particular the damping direction, on different sides of the main extension direction of the carrier plate. Preferably, the carrier plate is arranged along a direction perpendicular to the direction, in particular the damping direction, between the transmission element and a transmission element of the further vibration damping unit.Due to the design according to the invention, the holding device can advantageously be kept compact and stable.

[0014] Furthermore, an electrochemical system with at least one holding device according to the invention and with at least one fluid delivery unit fastened by means of the holding device is proposed. The electrochemical system preferably comprises at least one electrochemical cell, in particular a plurality of electrochemical cells. The electrochemical system preferably comprises at least one fluid supply comprising the fluid delivery unit for supplying the at least one electrochemical cell with the process fluid. The at least one electrochemical cell is preferably provided for an electrochemical conversion of the fluid. The electrochemical system preferably comprises a structural unit in and / or on which the at least one electrochemical cell and the at least one fluid delivery unit are arranged together. The structural unit is preferably designed as a housing. The structural unit preferably comprises the supporting structural element.The supporting structural element is designed, for example, as an outer wall of the housing, as an internal partition wall of the housing, as a mounting plate, or the like. The holding device is preferably fastened to the supporting structural element and, in particular, arranged inside the housing. The fluid supply preferably comprises at least one line element leading from the fluid delivery unit to the electrochemical cell. The line element and the fluid delivery unit are preferably connected to one another by the recess in the support plate and the damping insulation element. The axis of rotation of the fluid delivery unit is preferably aligned at least substantially perpendicular to the main extension plane of the support plate. The axis of rotation of the fluid delivery unit is preferably aligned at least substantially parallel to a main extension plane of the transmission element of the vibration damping unit.The design according to the invention makes it possible to provide an advantageously low-vibration and low-wear electrochemical system.

[0015] Furthermore, a method for assembling at least one fluid delivery unit of an electrochemical system by means of a holding device according to the invention is proposed. Preferably, in a positioning step of the method, the at least one fluid delivery unit is arranged and aligned relative to the supporting structural element. Preferably, in at least one damping assembly step of the method, the vibration damping unit is arranged on the at least one fluid delivery unit and on the supporting structural element. Preferably, in a supporting step of the method, the support unit is arranged together with the damping isolation element on the at least one fluid delivery unit and on the supporting structural element. Preferably, the damping assembly step is carried out before the supporting step. Advantageously effective vibration suppression can be achieved by the configuration according to the invention.

[0016] It is further proposed that the fluid delivery unit and at least one, in particular the already mentioned, further fluid delivery unit of the electrochemical system be secured in one, in particular single, method step by means of a common support element of the support unit. Preferably, in the positioning step, the fluid delivery unit and the further fluid delivery unit are positioned and aligned. Preferably, the carrier plate forms the common support element. Preferably, the carrier plate is arranged simultaneously on the fluid delivery unit and the further fluid delivery unit. Due to the design according to the invention, the holding device can advantageously be mounted quickly and easily.

[0017] It is further proposed that the fluid delivery unit and at least one, in particular the already mentioned, further fluid delivery unit of the electrochemical system are each coupled to an individual vibration damping unit of the holding device in at least one, in particular at least one each, method step of the method. Preferably, in the damping assembly step, the vibration damping unit is arranged on the fluid delivery unit and the supporting structural element. Preferably, in a further damping assembly step of the method, the further vibration damping unit is arranged on the further fluid delivery unit and the supporting structural element or alternatively on a further supporting structural element of the electrochemical system. The damping assembly step and the further damping assembly step can be carried out sequentially, simultaneously, or with temporal overlap.The design according to the invention allows advantageously effective vibration suppression to be achieved.

[0018] The holding device according to the invention, the electrochemical system according to the invention, and / or the method according to the invention are not intended to be limited to the application and embodiment described above. In particular, the holding device according to the invention, the electrochemical system according to the invention, and / or the method according to the invention may, in order to fulfill a functionality described herein, have a number of individual elements, components, units, and method steps that differs from the number stated herein. Furthermore, in the value ranges specified in this disclosure, values within the stated limits are also to be considered disclosed and can be used as desired. Drawings

[0019] Further advantages will become apparent from the following description of the drawings. The drawings illustrate an exemplary embodiment of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will expediently consider the features individually and combine them into further meaningful combinations.

[0020] They show: Fig. 1 a schematic representation of an electrochemical system according to the invention, Fig. 2 a schematic representation of a holding device according to the invention and Fig. 3 a schematic flow diagram of a method according to the invention. Description of the embodiment

[0021] Fig. 1 shows an electrochemical system 16. The electrochemical system 16 is designed, for example, as a fuel cell system. The electrochemical system 16 preferably comprises at least one electrochemical cell 46. The at least one electrochemical cell 46 is designed, for example, as a solid oxide fuel cell. The electrochemical system 16 preferably comprises a plurality, in particular at least 100, preferably at least 200, electrochemical cells 46, which are connected electrically in series and, in particular, fluidically in parallel for common operation. The electrochemical system 16 has, for example, a nominal electrical output of at least 10 kW, preferably of at least 20 kW. The electrochemical system 16 preferably comprises a fluid supply 48 for supplying the at least one electrochemical cell 46 with a process fluid, in particular air, in particular on the cathode side.The electrochemical system 16 preferably comprises a further fluid supply 50 for supplying, in particular on the anode side, the at least one electrochemical cell 46 with a further process fluid, in particular a hydrogen-containing, ammonia-containing, and / or methane-containing fuel. The at least one electrochemical cell 46 is preferably provided for electrochemically converting the process fluids.

[0022] The fluid supply 48 preferably comprises a first fluid delivery unit 12 and at least one further fluid delivery unit 14. The fluid supply 48 preferably comprises a main supply line 51. The main supply line 51 is preferably connected to a fluid inlet of the at least one electrochemical cell 46. The fluid supply 48 preferably comprises at least one heat exchanger 54, which is arranged in the main supply line 51 for preheating the process fluid. The heat exchanger 54 is preferably connected to an exhaust line 56 of the at least one electrochemical cell 46 as a heat source. The fluid supply 48 preferably comprises a bypass 52, which branches off from the main supply line 51 downstream of the fluid delivery units 12, 14. The bypass 52 preferably opens into the main supply line 51 downstream of the heat exchanger 54.

[0023] The fluid delivery units 12, 14 are preferably connected in parallel to the main supply line 51. The fluid delivery units 12, 14 are preferably designed to provide a flow rate of the process fluid of at least 1000 NL / min, preferably of at least 1250 NL / min, particularly preferably of at least 1500 NL / min. The fluid delivery units 12, 14 preferably have a nominal speed of at least 5000 s -1 , preferably at least 7000 s -1 , particularly preferably of at least 9000 s -1 The electrochemical system 16 preferably comprises a holding device 10 by means of which the fluid delivery units 12, 14 are attached to a supporting structural element 58.

[0024] Fig. 2 shows the holding device 10 for the fluid delivery units 12, 14. The holding device 10 comprises a support unit 18 for at least partially absorbing a weight force of the fluid delivery units 12, 14. The holding device 10 comprises an anti-vibration unit 20 to counteract the transmission of vibrations from the fluid delivery units 12, 14 to the support unit 18. The support unit 18 preferably comprises a support plate 76. The fluid delivery units 12, 14 are arranged supported on the support plate 76 for operation. An axis of rotation of the first fluid delivery unit 12 and an axis of rotation of the further fluid delivery unit 14 are preferably arranged at least substantially parallel. The support plate 76 has a main extension plane which is oriented at least substantially perpendicular to the axes of rotation of the fluid delivery units 12, 14.The support unit 18 preferably comprises a fastening plate 78, which is arranged at least substantially perpendicular to the carrier plate 76 and is preferably formed integrally therewith. The carrier plate 76 and the fastening plate 78 form, in particular, an L-shaped support angle. The fastening plate 78 is preferably fastened to the supporting structural element 58. The supporting structural element 58 is designed here, for example, as an inner wall of a housing, for example as a partition wall between a fluid supply compartment and an electronics compartment of a structural unit, in particular a housing, of the electrochemical system 16.

[0025] The anti-vibration unit 20 comprises at least one plate-shaped vibration isolation element 22 arranged on the support unit 18. The vibration isolation element 22 is preferably arranged on the support plate 76. The vibration isolation element 22 is preferably arranged between the support plate 76 and the fluid delivery units 12, 14. In particular, the vibration isolation element 22 isolates the fluid delivery units 12, 14 from the support plate 76.

[0026] The vibration isolation element 22 and the support plate 76 have overlapping recesses 24 for receiving the first fluid delivery unit 12. The first fluid delivery unit 12 is preferably connected to the main supply line 51 through the recess 24. The vibration isolation element 22 and the support plate 76 comprise further overlapping recesses 26 for receiving the further fluid delivery unit 14 of the electrochemical system 16. The further fluid delivery unit 14 is preferably connected to the main supply line 51 through the further recess 26. The support plate 76 and the vibration isolation element 22 preferably have an E-shaped profile to form the recesses 24, 26, preferably in their respective main extension plane.

[0027] The anti-vibration unit 20 comprises a first vibration damping unit 28 for dissipating vibration energy from the first fluid delivery unit 12. The first vibration damping unit 28 comprises at least one coupling element 32 for contact with the first fluid delivery unit 12. The coupling element 32 is preferably designed as a clamp that surrounds the first fluid delivery unit 12 in a direction perpendicular to the rotational axis of the first fluid delivery unit 12. The coupling element 32 is preferably arranged at a distance from the vibration isolating element 22. The first vibration damping unit 28 comprises at least one damping element 36. The damping element 36 is preferably made of rubber. The damping element 36 is preferably designed as a bolt shock absorber. The first vibration damping unit 28 comprises at least one transmission element 40 for transmitting vibrations from the coupling element 32 to the damping element 36.The transmission element 40 is preferably L-shaped and has a coupling section and a damping section oriented at least substantially perpendicular thereto. The coupling section of the transmission element 40 is preferably rigidly connected to the coupling element 32. The coupling section preferably has a coupling fastening 60 to connect the coupling element 32 to the transmission element 40. The coupling fastening 60 preferably comprises a fixing element, such as a screw, a rivet, a bolt, or the like. The fixing element is designed, for example, as an ISO 7075 screw, in particular of size M8. The coupling fastening 60 preferably comprises a groove that is at least substantially perpendicular to a main extension plane of the coupling element 32 for displacing the fixing element and the coupling element 32 relative to the coupling section of the transmission element 40.The damping section of the transmission element 40 is preferably arranged on the damping element 36. The damping section of the transmission element 40 preferably has a damping attachment 64 for connection to the damping element 36. The damping attachment 64 preferably comprises a nut, in particular a DIN985 hexagon nut, in particular size M8, for securing the damping element 36.

[0028] The vibration damping unit 28 preferably comprises a support element 68. The support element 68 is preferably fastened to the supporting structural element 58. The vibration damping unit 28 comprises, for example, DIN 34805 screws, in particular of size M8, as support fastening 72 for fastening the support element 68 to the supporting structural element 58. The support element 68 is preferably L-shaped, with a support section arranged on the supporting structural section and a damping section running at least substantially perpendicular thereto. The damping section of the support element 68 is preferably arranged on the damping element 36. The damping element 36 is preferably arranged in a direction perpendicular to the main extension plane of the coupling element 32 between the damping section of the support element 68 and the damping section of the transmission element 40.The damping element 36 and the transmission element 40 are arranged one behind the other along a direction which runs at least substantially parallel to a normal of the carrier plate 76.

[0029] The anti-vibration unit 20 comprises at least one further vibration damping unit 30 arranged at a distance from the first vibration damping unit 28 for dissipating vibration energy of the further fluid conveying unit 14. The further vibration damping unit 30 is constructed analogously to the first vibration damping unit 28 and comprises, in particular, a further coupling element 34, a further damping element 38, a further transmission element 42, a further coupling fastening 62, a further damping fastening 66, a further support element 70 and / or a further support fastening 74. The components of the further vibration damping unit 30 are preferably structurally identical to the corresponding components of the first vibration damping unit 28. The further vibration damping unit 30 is assembled and arranged substantially mirror-symmetrically to the first vibration damping unit 28.Deviating from the symmetry, the coupling elements 32, 34 are arranged, for example, in different positions relative to the transmission elements 40, 42, in particular so that a distance between the fluid conveying units 12, 14 can advantageously be kept small.

[0030] Fig. 3 shows a flowchart of a method 44 for assembling the fluid delivery units 12, 14 by means of a holding device 10. The method 44 preferably comprises at least one positioning step 80, in which at least the first fluid delivery unit 12 is positioned and aligned for assembly. The method 44 particularly comprises a further positioning step 82, in which the further fluid delivery unit 14 is positioned for assembly and preferably aligned with its axis of rotation at least substantially parallel to the axis of rotation of the first fluid delivery unit 12. The positioning steps 80, 82 can be carried out separately or combined into a single positioning step 80, 82, in particular if the fluid delivery units 12, 14 are already rigidly connected to one another in a pre-assembly step, for example by means of a feed stabilization plate 90 (see Fig. 2) the fluid supply 48.

[0031] The first fluid delivery unit 12 and the further fluid delivery unit 14 are each coupled to one of the individual vibration damping units 28, 30 of the holding device 10 in at least one damping assembly step 84, 86 of the method 44. Preferably, in a first damping assembly step 84, the first vibration damping unit 28 is mounted on the first fluid delivery unit 12. Preferably, in a further damping assembly step 84, the further vibration damping unit 30 is mounted on the further fluid delivery unit 14. The damping assembly steps 84, 86 can be performed in any order.

[0032] The damping assembly step 84 preferably includes a coupling step 92 as a sub-step. In the coupling step 92, the coupling element 32 is fastened to the first fluid conveying unit 12. The damping assembly step 84 preferably includes a transmission fastening step 94 as a sub-step. The transmission fastening step 94 is preferably located downstream of the coupling step 92. In the transmission fastening step 94, the transmission element 40 is fastened to the coupling element 32 by means of the coupling fastening 60. The damping assembly step 84 preferably includes a damping support step 96 as a sub-step. The damping support step 96 can be carried out before, after, simultaneously with, or temporally overlapping with the coupling step 92 and / or the transmission fastening step 94. In the damping support step 96, the support element 68 is fastened to the supporting structural element 58 by means of the support fastening 72.The damping assembly step 84 preferably includes a damping step 98 as a sub-step. In the damping step 98, the damping element 38 is preferably arranged between the transmission element 40 and the support element 68, and then the transmission element 40 is fastened to the support element 68 with the damping attachment 64. The damping step 98 is preferably performed after the transmission attachment step 94 and after the damping support step 96.

[0033] Analogously, the further damping assembly step 86 preferably comprises as sub-steps a further coupling step 100, a further transmission fastening step 102, a further damping support step 104 and a further damping step 106 for assembling the component of the further vibration damping unit 30.

[0034] The first fluid delivery unit 12 and the further fluid delivery unit 14 are secured in a single supporting step 88 of the method 44 by means of a common support element, namely the aforementioned support plate 76, of the support unit 18. The support plate 76 is preferably attached to the fluid delivery unit 12, 14 together with the vibration isolation element 22 and, in particular, subsequently fastened to the supporting structural element 58 via the fastening plate 78. The supporting step 88 is preferably carried out after the damping assembly steps 84, 86.

Claims

[1] Holding device (10) for at least one fluid conveying unit (12, 14) of an electrochemical system (16), with at least one support unit (18) for at least partially absorbing a weight force of the at least one fluid conveying unit (12, 14), characterized by at least one anti-vibration unit (20) to counteract the transmission of vibrations from the at least one fluid conveying unit (12, 14) to the support unit (18). [2] Holding device (10) according to claim 1, characterized by that the anti-vibration unit (20) comprises at least one plate-shaped vibration isolating element (22) which is arranged on the support unit (18) and comprises at least one recess (24) for receiving the at least one fluid conveying unit (12). [3] Holding device (10) according to claim 2, characterized bythat the vibration isolation element (22) comprises at least one further recess (26) for receiving a further fluid conveying unit (14) of the electrochemical system (16). [4] Holding device (10) according to one of the preceding claims, characterized by that the anti-vibration unit (20) comprises at least one vibration damping unit (28) for dissipating vibration energy of the at least one fluid conveying unit (12). [5] Holding device (10) according to claim 4, characterized by that the anti-vibration unit (20) comprises at least one further vibration damping unit (30) arranged at a distance from the vibration damping unit (28) for dissipating vibration energy of at least one further fluid conveying unit (14) of the electrochemical system (16). [6] Holding device (10) according to claim 4 or 5, characterized bythat the at least one vibration damping unit (28, 30) comprises at least one coupling element (32, 34) for contact with the at least one fluid conveying unit (12, 14), at least one damping element (36, 38) and at least one transmission element (40, 42) for transmitting vibrations from the coupling element (32, 34) to the damping element (36, 38). [7] Holding device (10) according to claim 6, characterized by that the at least one damping element (36, 38) and the at least one transmission element (40, 42) are arranged one behind the other along a direction which runs at least substantially parallel to a normal of a main support surface of the support unit (18). [8] Electrochemical system (16) with at least one holding device (10) according to one of the preceding claims and with at least one fluid conveying unit (12, 14) fastened by means of the holding device (10). [9] Method (44) for assembling at least one fluid conveying unit (12, 14) of an electrochemical system (16) by means of a holding device (10) according to one of claims 1 to 7. [10] Method according to claim 9, characterized by that the fluid conveying unit (12) and at least one further fluid conveying unit (14) of the electrochemical system (16) are secured in one, in particular single, method step by means of a common support element of the support unit (18). [11] Method according to claim 9 or 10, characterized by that the fluid conveying unit (12) and at least one, in particular the already mentioned, further fluid conveying unit (14) of the electrochemical system (16) are coupled in at least one, in particular at least one each, method step to an individual vibration damping unit (28, 30) of the holding device (10).

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