HEAT PUMP WITH VIBRATION INFLUENCE DEVICE

Abstract

Heat pump (100) with the following features: an evaporator (10) for evaporating working fluid to obtain working steam; a compressor (20) for compressing the working steam in order to obtain compressed working steam; a condenser (30) for liquefying the compressed working steam; a frame (40) to which the evaporator (10), the condenser (30) and / or the compressor (20) is / are attached; and a vibration control device (50) designed to decouple the compressor (20) from the evaporator (10), the condenser (30) and / or the frame (40) with respect to vibration, and / or to actively or passively reduce vibration of the compressor (20), wherein the compressor (20) has a burst protection which is designed to preferably retain one or more parts of the compressor (20) within the frame (40) in the event of a bursting of the compressor (20).

Description

[0001] The present application concerns a heat pump with a vibration control device.

[0002] In heat pumps known from the prior art, the individual components of the heat pump, such as the evaporator and an associated evaporator tank and / or the compressor and an associated compressor tank and / or the condenser and an associated condenser tank, are permanently connected to each other.

[0003] In the publication Tadayoshi et al.: Centrifugal turbo chiller using water as refrigerant and lubricant, The 11th International Conference on Compressors and their Systems, Journal of Process Mechanical Engineering, published on July 1, 2020, DOI: 10.1177 / 0954408920938197, a water refrigerant heat pump system with a water vapor turbo compressor is described in which the compressor and the spiral casing are directly and rigidly connected to the evaporator and compressor tanks.

[0004] Due to the rigid connection of the individual components, vibrations, particularly resonances, generated during operation of the heat pump are transmitted from one component to another. Such vibrations are typically generated in the drive motor of the heat pump's compressor. The evaporator and compressor usually have large volumes or surfaces that reflect and radiate sound waves, thus promoting vibration transmission between the individual components of the heat pump. Stresses and mechanical expansions can also arise due to temperature differences in the various regions of the heat pump. These stresses, caused by the rigid connection of the individual components, cannot be immediately compensated for.This can result in the heat pump operating in a mechanically and / or thermodynamically unstable manner, and the components being subjected to greater mechanical stress.

[0005] Due to the rigid connection of the individual components, the individual components, such as the spiral casing, the connection nozzles of the containers and / or the bypass line, of the heat pump must be manufactured very precisely to ensure an assembly that is free of constraints and therefore free of internal stresses.

[0006] From EP 0 035 656 A1, a heat pump is known with a machine frame for accommodating its components and with a casing for shielding these components from the environment, in which effective interruption of sound transmission to the environment as well as good accessibility of the machine components and trouble-free installation even in confined spaces are sought, by the machine frame having a pallet-shaped base frame set on feet provided with vibration damping elements, on which all components are mounted, and the casing being designed as an independent, self-supporting, hood-shaped housing that can be placed over the base frame with the components mounted thereon, which has a sound-absorbing coating on its inside and is provided with a circumferential sealing strip on its bottom edge.

[0007] From DE 11 2013 003 494 T5, a vibration isolation device for an air conditioning system is known, which has a flow path, at least part of which has a corrugated structure and which is arranged in a cooling line between a compressor outlet and a refrigerant pipe. To dampen vibrations generated by the compressor and reduce their transmission to the refrigerant pipe, the flow path is coupled to two stabilizing elements. The vibration isolation device includes a support element for holding the two stabilizing elements, the support element being isolated from the stabilizing elements by vibration isolators.

[0008] From EP 1 018 627 A2 a heat pump with a compressor circuit comprising compressor, condenser, expansion valve and evaporator, wherein the compressor is connected to an auxiliary frame which is connected via first damping elements to a mounting frame which is intended to be permanently connected to a fixed structure.

[0009] WO 2013 / 046 633 A discloses a cooling device in which rubber damping elements are used for vibration damping.

[0010] Another refrigeration machine is known from WO 2019 / 220 923 A1.

[0011] The object of the present invention is to provide an improved heat pump concept.

[0012] This problem is solved by a heat pump according to claim 1.

[0013] A key idea of ​​the present invention is, among other things, to decouple vibrations, which can arise particularly from the operation of a drive motor in individual components of the heat pump and which can cause resonance frequencies, from other components of the heat pump in such a way that vibrations are not transmitted from one component to another. This extends the service life of the heat pump. This involves decoupling the drive from the other components of the heat pump, such as the evaporator and / or compressor tanks.

[0014] The proposed heat pump comprises an evaporator for evaporating working fluid to obtain working steam; a compressor for compressing the working steam to obtain compressed working steam; a condenser for liquefying the compressed working steam; and a frame to which the evaporator, condenser, and / or compressor are attached. To decouple any vibrations that may occur, the proposed heat pump further comprises a vibration control device designed to decouple the compressor from the evaporator, condenser, and / or frame, and / or to actively or passively reduce compressor vibration.The vibration damping device is designed to decouple one component of the heat pump, such as the compressor, from another component, such as the evaporator, in order to reduce, and in particular prevent, vibration transmission from one component to the other. The vibration damping device may include one or more elastic connecting elements. Specifically, elastic connecting elements can be used between the individual components of the heat pump to achieve vibration decoupling, i.e., to reduce, and in particular prevent, vibration transmission from one component to another.An elastic connecting element can be designed to be thermally insulating, thereby enabling thermal decoupling of the individual components of the heat pump by incorporating a vibration damping device. In other words, the vibration damping device reduces, and in particular prevents, the transfer of heat from one component of the heat pump to another. The vibration damping device preferably comprises hoses or hose couplings as elastic connecting elements, which flexibly connect the individual components of the heat pump. The connection is designed to be flexible enough to easily compensate for tolerances between the individual components. Precise assembly of the heat pump is therefore no longer necessary.The vibration control device may also preferably include elastic dampers to elastically attach the spiral casings of the heat pump to a frame of the heat pump.

[0015] The heat pump concept according to the invention is advantageous in that it operates mechanically and / or thermodynamically stably during operation of the heat pump, and furthermore, no vibrations and / or temperatures are transferred from one component to another component during operation of the heat pump.

[0016] It goes without saying that individual aspects described in relation to the heat pump can also be implemented as process steps, and vice versa. Further details are discussed in the following image description.

[0017] Preferred embodiments of the present invention are explained in detail below with reference to the accompanying drawings. These show: Fig. 1 a hydraulic diagram of a heat pump; Fig. 2 a perspective view of a heat pump; Fig. 3 a perspective view of a heat pump for decoupling the spiral casing; Fig. 4 a perspective view of a heat pump for the elastic suspension of the spiral casing compressors; Fig. 5 a perspective view of a connecting hose; Fig. 6a-c a perspective view of a Schwingmetall ® buffer (a) and two-dimensional side view of a Schwingmetall ® buffer (b), as well as tabularly summarized properties of the Schwingmetall ® buffer (c); Fig. 7 a representation of an elastic connecting element; Fig. 8. A representation of a stop-chock metal damper; Fig. 9. Passive vibration reduction through dampers; Fig. 10. Active vibration reduction through active dampers with actuators; Fig. 11 an arrangement of dampers in the heat pump for vibration isolation; Fig. 12 an arrangement of dampers in the heat pump for vibration isolation; Fig. 13 a representation of a corrugated hose; Fig. 14 a perspective view of a heat pump with burst protection; Fig. 15 a representation of a noise-dampening material; Fig. 16 a perspective view of a heat pump for decoupling an external gas extraction system and a free cooling module; Fig. 17 a spiral casing with a catching device; Fig. 18 a method for operating a heat pump; and Fig. 19 a method for manufacturing a heat pump.

[0018] Individual aspects of the invention described herein are set forth below. Fig. Figures 1 to 19 are described. In the present application, identical reference numerals refer to identical or equivalent elements, and it is not necessary for all reference numerals to be repeated in all drawings.

[0019] Fig. Figure 1 schematically shows, in the form of a hydraulic diagram, the setup of a heat pump 100 with an evaporator 10 for evaporating the working fluid to obtain working steam; a compressor 20 for compressing the working steam to obtain compressed working steam; and a condenser 30 for condensing the compressed working steam. According to the hydraulic diagram shown in Figure 1. Fig. In the first and second spiral casings 78, the compressors are arranged horizontally, specifically in an xy plane. The first compressor stage 70-1 is connected to the second compressor stage 70-n via an intercooler 42. The intercooler 42 has an intercooling chamber 43, through which the compressed working fluid passes and is cooled. The intercooling chamber 43 has an inlet 47 and an outlet 46 leading to the second compressor stage 70-n. A bypass pipe 84 extends from the outlet 46 of the intercooling chamber 43 to the second compressor stage 70-n. If only the first compressor stage 70-1 is to be operated, the compressed working fluid does not pass through the intercooler 42, but rather through a pipe 45 that leads directly into the condenser 30.The pipe 45 has a flap 83, which is closed when the working fluid is to pass through the second compressor stage 70-2, or open when the working fluid from the first compressor stage 70-1 is to be fed directly into the condenser 30. The flap 83 can be controllable or configured as a thermocouple. The intercooler 42 has an intercooler collection tank 44. A bypass pipe or bypass line 85 is arranged between the condenser 30 and the evaporator 10, which also has a flap 83. The flap 83 in the bypass line 85 can be controllable or configured as a thermocouple.

[0020] Fig. Figure 2 shows a perspective view of the heat pump 100 with the components just described. Furthermore, the Fig. 2 shows that the heat pump 100 has a frame 40 to which the evaporator 10, the condenser 30 and / or the compressor 20 is / are attached. As the Fig. As can be seen further in Section 2, the heat pump 100 comprises a vibration control device 50, which is designed to decouple the compressor 20 from the evaporator 10, the condenser 30 and / or the frame 40 with respect to vibration, and / or to actively or passively reduce vibration of the compressor 20. In particular, the individual components of the heat pump, such as the evaporator 10, the compressor 20, the condenser 30 and / or the frame 40, are decoupled from each other via the vibration control device 50 in order to reduce, and in particular prevent, vibration and / or thermal transmission. Furthermore, the evaporator 10 comprises an evaporator tank 11, the compressor 20 a compressor tank 21, and the condenser 30 a condenser tank 31.

[0021] Preferably, the vibration damping device 50 has an elastic connecting element 60 between the compressor 20 and the frame 40, between the evaporator 10 and the frame 40, and / or between the condenser 30 and the frame 40. In particular, the vibration damping device 50 has several elastic connecting elements 60 to decouple the individual components of the heat pump 100, such as the evaporator 10, the compressor 20, the condenser 30, and / or the frame 40, from one another via the vibration damping device 50. This reduces, and in particular prevents, direct vibration transmission between the individual components of the heat pump 100.

[0022] For example, how each, individually and in combination, Fig. 2, Fig. 3, Fig. 4, Fig. 11, Fig. 12, Fig. 14, Fig. As shown in Figures 16 and 17, the compressor 20 has a compressor inlet pipe 22 and a compressor outlet pipe 24. Furthermore, the evaporator 10 has an evaporator outlet pipe 14. The condenser 30 also has a condenser inlet pipe 32. The vibration damping device 50 has an elastic connecting element 60 between the compressor outlet pipe 24 and the condenser inlet pipe 32 and / or between the evaporator outlet pipe 14 and the compressor inlet pipe 22. In particular, at least one elastic connecting element 60 can be arranged between different components of the heat pump 100 in order to mechanically and / or thermally decouple each component of the heat pump 100 from the other components of the heat pump 100.

[0023] Preferably, the compressor 20 has two or more compressor stages 70, wherein the compressor inlet pipe 22 is arranged on a first compressor stage 70-1 and the compressor outlet pipe 24 is arranged on a second or last compressor stage 70-n, and wherein an intercooler tank is arranged between the first compressor stage 70-1 and the second or last compressor stage 70-n. In this context, the reference numeral n denotes a natural number greater than or equal to two. Furthermore, the vibration control device 50, in particular, has an elastic connecting element 60 between the intercooler tank and the first compressor stage 70-1 and / or between the intercooler tank and the second or last compressor stage 70-n. In particular, the vibration control device 50 is defined by a plurality of elastic connecting elements 60.The majority of elastic connecting elements 60 can be elastic connecting elements 60 with different physical properties, such as thermal conductivity, Shore strength, etc. (see, for example, the table in . Fig. 6c, where the physical values ​​are in the table to Fig. 6c are not to be understood as conclusive).

[0024] Preferably, the elastic connecting element 60, which is connected to the frame 40, is designed as an elastic decoupling element, as a vibration-damping metal® buffer, as a rubber-coated screw / nut connection or as a metal damper. Fig. 6a and Fig. Figure 6b shows, for example, Schwingmetall® buffers. Fig. Figure 7 shows a rubber-coated screw / nut connection. In particular, the spiral housing 78 or the spiral housings 78 are dampened and suspended from the frame 40 by one or more elastic connecting elements 60. For example, three or four dampers 94, i.e., three or four elastic connecting elements 60, can be used to suspend or arrange a spiral housing 78 on the frame 40. Preferably, a Schwingmetall® buffer with the following properties is used: diameter d = 20 mm, height h = 15 mm, length l = 19 mm (see Figure 7). Fig. 6c and Fig. 6b). Further properties of the preferred Schwingmetall® buffer are listed in the table in Fig. 6c, which are designated with reference numeral 105. A rubber-coated screw / nut connection, as in Fig. Figure 7 shows, for example, that the connection can be used to attach the spiral casing(s) 78 to the other components of the compressor 20. By using the rubber-coated screw / nut connection, the connected components (such as the spiral casing 78 and other components of the compressor 20) can be guided in a transverse direction. The transverse direction refers to a direction along the connected component. The rubber-coated screw / nut connection includes a guide pin 106, to which a component of the heat pump can be attached. The transverse direction points along a length of the guide pin 106 (see Figure 7). Fig. 7).

[0025] Furthermore, the elastic connecting element 60 is preferably designed as an elastic connecting sleeve, as a fiber-reinforced hose sleeve or as a rubber sleeve. Fig. Figure 5 shows, for example, the elastic connecting element 60 as a silicone hose, which can, for example, be four-layered. A four-layered silicone hose, for instance, is very resistant and has an operating temperature range of -50°C to 250°C. In particular, spiral housings 78 of the heat pump 100 can be attached to the frame 40 using elastic dampers.

[0026] The elastic connecting element 60 is preferably designed as a so-called stop-chock metal damper (stop chock is English for stop-mounting piece), such as, for example, a Fig. As can be seen in section 8. The Stop-Chock metal damper is age-resistant because the damping is achieved through twisted wire mesh. The use of rubber-elastic material is not necessary with the Stop-Chock metal damper. Fig. Figure 8 shows different embodiments of the stop-chock metal damper, which are not discussed in detail, as the stop-chock metal damper is known to those skilled in the art.

[0027] Preferably, the heat pump 100 comprises several decoupling devices, such as at least four. A first decoupling device could be arranged between an intake port of the compressor 20 and a first spiral casing 78 of the compressor 20. A second decoupling device could be arranged between the spiral casing 78 of the compressor 20 and an intercooler. A third decoupling device could be arranged between the intercooler and a second spiral casing 78 of the condenser 30 or a second or final compressor stage (70-n). A fourth decoupling device could be arranged between the spiral casing 78 and the condenser 30. According to the present invention, fewer or more decoupling devices can be provided between the individual components of the heat pump 100.

[0028] Above all, the spiral casings 78 of the heat pump 100 must be completely decoupled from the other components of the heat pump 100 in order to avoid the transmission of vibrations to the other components, especially to the tanks and the frame 40.

[0029] Preferably, the elastic connecting element 60 is designed such that a free length of the elastic connecting element 60 between the fixed pipe ends is less than or equal to 20 mm. When using a silicone hose or a silicone sleeve, as in Fig. Figure 5 shows a free length between the components of 20 mm or 15 mm or less. With a free length of 20 mm or 15 mm or less between the nozzles of the silicone hose or silicone sleeve, excessive suction due to negative pressure can be prevented. Alternatively or additionally, an aramid fiber-reinforced hose or sleeve can be used. An aramid fiber-reinforced hose or sleeve can be used particularly in areas where an elevated temperature and / or negative pressure occurs in the heat pump 100. In areas where no elevated or reduced temperature, negative or positive pressure occurs, hoses or sleeves can be used instead of an aramid fiber-reinforced hose or sleeve. As just described, elastic sleeves can also be used instead of or in addition to a hose. The use of one or more polyester inserts is also possible.Preferably, hoses, which are designed particularly as cooling hoses, have a rayon cord reinforcement from LW 20 upwards. Preferably, the hoses are made of EPDM (ethylene propylene diene monomer rubber), and in particular, the hoses include a fabric reinforcement.

[0030] Preferably, the compressor 20 has a spiral casing 78 and a drive motor 80 connected to the spiral casing 78, wherein the vibration control device 50 is designed to elastically couple the spiral casing 78 to the evaporator 10, the condenser 30 and / or the frame 40. The elastic coupling includes decoupling vibrations, which can arise in particular from the operation of the drive motor 80. The spiral casing 78 is, for example, in Fig. 2 can be seen, with the drive motor 80 arranged under a burst bucket 90.

[0031] Preferably, the vibration control device 50 has a vibration damper 82 which is arranged on the compressor 20 and is designed to passively or actively reduce the vibration of the compressor 20 by operating the compressor 20. Fig. Figure 9 shows, for example, a vibration damper 82, which operates passively, while Fig. Figure 10 shows a vibration damper 82, which is actively working. How Fig. As can be seen in Figure 9, a passive vibration damper 82 is a system 101 consisting of a spring 102, a damper 103, and a mass 104. Vibration dampers 82 are cost-effective and reliable solutions for vibration problems because they operate very effectively in their target frequency range and are characterized by high robustness. A significant advantage is that no abutment is required. Thus, vibration dampers 82 can be installed almost anywhere—optimized solely according to performance criteria. Active vibration dampers 82, as shown in Figure 9, are also available. Fig. Figure 10 additionally features an active system 107. The active system 107 can include actuators, sensors, controllers, and / or an auxiliary power source. The active system 107 can supply energy and / or a command to the system 101 of the passive vibration damper 82 in order to actively counteract a vibration. The active vibration damper 82 can regulate its vibration isolation function through its actuators, sensors, and controllers.

[0032] Possible attachment points 108 of the damper 82 on the spiral housing 78 or on the motor housing of the drive motor 80 can be the Fig. 11 can be removed. Several passive dampers 82 or active dampers 82 can be attached to the compressor 20 or to the spiral casing 78 of the compressor 20 on the heat pump 100 in order to dampen vibrations during the start-up and shutdown of the compressor 20 and during the operation of the heat pump 100 or the compressor 20.

[0033] Preferably, the compressor 20 has a spiral casing 78 and a drive motor 80 connected to the spiral casing 78, wherein the vibration damper 82 is arranged on the spiral casing 78 or on the drive motor 80. The vibration damper 82 can be an active or a passive vibration damper 82. Fig. 2, Fig. Figure 11 shows the drive motor 80 covered by a burst bucket 90, i.e., not visible. The drive motor 80 is in Fig. 1 visible.

[0034] Preferably, the heat pump 100 has a bypass pipe 85 between the evaporator 10 and the condenser 30, wherein the vibration control device 50 has at least one elastic connecting element 60 between the bypass pipe 85 and the evaporator 10 or between the bypass pipe 85 and the condenser 30, and / or wherein the bypass pipe 85 is designed as a flexible pipe. A flexible pipe is a flexible pipe that can be stretched or compressed, in particular along its length. This can be advantageous during assembly or operation of the heat pump 100 if the bypass pipe 85 is stretchable or compressible to compensate for tolerances. For example, in Fig. 12 The bypass pipe 85 between the condenser 30 and the evaporator 10 can be seen. In addition, rubber sleeves 109 can be arranged at a bypass inlet and at a bypass outlet (see Fig. 12).

[0035] The bypass pipe 85 can, for example, be designed as a corrugated hose. Fig. Figure 13 shows embodiments of different corrugated hoses. Corrugated hoses are manufactured from various materials with a corrugated profile. Standard dimensions of a known corrugated hose range from DN 6 to DN 300. Corrugated hoses can be used at temperatures from -270 °C to a maximum of 600 °C. Corrugated hoses are pressure-resistant and leak-proof and can have a PTFE lining for particularly aggressive media. Furthermore, corrugated hoses can be designed with various connection fittings. Ring-shaped corrugated hoses are manufactured from butt-welded pipes that are mechanically corrugated.

[0036] Preferably, the heat pump 100 also includes a free cooling module 92 (see Fig. 2 and Fig. 16, which is arranged on the frame 40, wherein the vibration control device 50 has an elastic damper 94 between the free cooling module 92 and the frame 40. Additionally or alternatively, the heat pump 100 also has an external gas extraction device 96, wherein the vibration control device 50 is designed to decouple the external gas extraction device 96 from the frame 40 and / or the condenser 30 with respect to vibration. The external gas extraction device 96 and the free cooling module 92 are, for example, in Fig. 12 can be seen.

[0037] The free cooling module 92 can be decoupled from the frame 40 by elastic connecting elements such as the elastic dampers 94. Although the free cooling module 92 does not generate vibrations, it represents a large mass that can be excited into vibrations. Regarding the decoupling of the external gas extraction, it should be noted that the external gas extraction assembly 96 is not itself excited. However, it represents a vibrating element that can propagate vibrations.

[0038] According to the invention, the compressor 20 has a burst protection device configured to preferably retain one or more parts of the compressor 20 within the frame 40 in the event of a burst. In particular, the drive motor 80, or each of the drive motors 80, has a burst protection device configured to substantially retain one or more parts of the drive motor 80 in place, i.e., within the burst protection device, in the event of a burst of the drive motor 80.

[0039] Preferably, the compressor 20 has a drive motor 80 and a spiral casing 78 arranged on the frame, wherein the burst protection comprises a burst bucket 90 above the drive motor 80 and / or a catch 98 on the spiral casing 78 and the frame 40. Alternatively or additionally, the burst protection comprises a burst bucket 90 above the drive motor 80, wherein the space between the burst bucket 90 and the drive motor 80 is filled with noise-dampening material 76. The burst protection can include the burst bucket 90 and / or the catch 98. In the case of the burst bucket 90, the burst bucket 90 covers the drive motor 80. In the case of multiple drive motors 80, each drive motor 80 is covered by its own burst bucket.Furthermore, each spiral housing 78 can have its own catching device, which is designed to protect the corresponding spiral housing 78 from components of the corresponding drive motor 80 in the event of a bursting of the drive motor 80.

[0040] Fig. Figure 14 shows a drive motor 80 of the heat pump without burst protection and a drive motor 80 of the heat pump over which a burst bucket 90 is placed. To dampen noise, noise-absorbing material, such as foam, can be arranged between the drive motor 80 and the burst bucket 90. A noise-absorbing material in the form of foam is, for example, in Fig. 15 shown. In Fig. Figure 15 shows a pyramid foam made of Basotect G+, which has a base-to-pyramid ratio of 1:2. The noise-absorbing material according to Fig. Material 15 has a delicate, open-cell structure. Furthermore, the fire behavior of the sound-absorbing material is classified as flame-retardant according to DIN 4102 B1, and it complies with FMVSS 302 and UL 94 V0 + HF1. ​​The thermal conductivity of the sound-absorbing material is essentially 0.035 W / mK. The sound-absorbing material can be used in a temperature range from -40 °C to +150 °C and has a density of essentially 9 kg / m³. 3 on.

[0041] Fig. Figure 17 shows a section of a heat pump 100. The section shows a spiral casing 78, above which the safety catch 98 is arranged. The safety catch 98 is located between the spiral casing 78 and the base 79, which is connected to the frame 40. The safety catch 98 can be enclosed by the elastic damper 94, preferably as a steel cable loosely connected to the elastic damper 94. In the event of impeller bursting, i.e., in the event of a failure during operation, the impeller would jam against the spiral casing 78 or transmit a torque to the spiral casing 78. This would cause the elastic connecting elements 60, preferably the elastic dampers 94, to rupture, and the spiral casing 78 would wobble or spin out of its mounting, which could pose a danger to bystanders. The safety catch 98 is provided to prevent this.The safety device 98 can, for example, be a steel cable connected to the spiral housing or the frame and preferably loosely integrated into the elastic dampers 94. As in . Fig. As shown in Figure 17, the catch device 98 can also be designed as a type of drawer, the base 79 of which is connected to the spiral housing 78 by means of the elastic dampers 94. In the event of a burst, the torque acting on the spiral housing 78 is absorbed and transferred into the frame 40. Therefore, the spiral housing 78 does not swing around uncontrollably in its mounting. The catch device 98 can also be connected as a "loose screw" between the spiral housing 78 and the base 79.

[0042] Fig. Figure 18 shows a further aspect of the present invention, which relates to a method for operating a heat pump 100. The method 180 for operating a heat pump 100 comprises, in step 180, providing a heat pump 100 with an evaporator 10 for evaporating working fluid to obtain working steam; with a compressor 20 for compressing the working steam to obtain compressed working steam; with a condenser 30 for condensing the compressed working steam; and with a frame 40 to which the evaporator 10, the condenser 30, and / or the compressor 20 are attached. The method comprises step 181: vibrationally decoupling the compressor 20 from the evaporator 10, from the condenser 30, and / or from the frame 40, and / or actively or passively reducing a vibration of the compressor 20.To decouple vibrations, the method in step 182 utilizes the arrangement and use of one or more elastic connecting element(s) 60, which is / are encompassed by a vibration control device 50, as already described herein in connection with the heat pump 100. To improve the protection of the heat pump during operation, the method includes the arrangement of burst protection, as already described herein in connection with the heat pump 100. In other words, the features described in connection with the heat pump 100 can also be understood as a method step for arranging and operating the heat pump 100.

[0043] Fig. Figure 19 shows a further aspect of the present invention, which relates to a method 190 for manufacturing a heat pump 100. The method for manufacturing a heat pump 100 comprises, in step 190, providing a heat pump 100 with an evaporator 10 for evaporating working fluid to obtain working steam; with a compressor 20 for compressing the working steam to obtain compressed working steam; with a condenser 30 for liquefying the compressed working steam; and with a frame 40 to which the evaporator 10, the condenser 30 and / or the compressor 20 are attached. The procedure includes step 192: forming a vibration control device 50 to decouple the compressor 20 from the evaporator 10, the condenser 30 and / or the frame 40 with respect to vibration and / or to actively or passively reduce vibration of the compressor 20.To decouple vibrations, the method utilizes the arrangement of one or more elastic connecting element(s) 60, which is / are encompassed by a vibration control device 50, as already described herein in connection with the heat pump 100. To improve the protection of the heat pump during operation, the method includes the arrangement of burst protection, as already described herein in connection with the heat pump 100. In other words, the features described in connection with the heat pump 100 can also be understood as a method step for arranging and operating the heat pump 100.

[0044] An advantage of the invention described herein is that the spiral casings 78, including the drive motors 80, are decoupled from the tanks of the evaporator, compressor, and condenser, so that vibrations generated by the drive motors during operation of the heat pump 100 are not transmitted to the other components of the heat pump, or are transmitted only in a reduced form. This is because the spiral casings 78, in particular, can generate resonances, while, for example, the tanks of the evaporator or compressor act as resonating bodies. The vibration control device 50 according to the invention can reduce or even prevent vibration transmission.

[0045] A further advantage of the invention described herein is that the compressor 20 can be decoupled from its tank by means of fiber-reinforced hoses / rubber sleeves, and the compressor 30 can be decoupled from the frame 40 of the heat pump. The rubber sleeves can also compensate for manufacturing tolerances, thereby simplifying the production of the heat pump 100. Furthermore, the transmission of vibrations from the drive motor 80 can be reduced, and in particular prevented, by the additional attachment of a damper.

[0046] In particular, the invention described herein achieves vibration and noise decoupling of the compressor from the container (resonance body) and simultaneously temperature decoupling of the individual components of the heat pump 100.

[0047] Although some aspects relating to a device or system have been described, it is understood that these aspects also constitute a description of a corresponding method, so that a block or component of a device or system can also be understood as a corresponding method step or as a feature of a method step. For reasons of redundancy, a description of the present invention in the form of method steps is omitted here.

[0048] In the preceding detailed description, various features were sometimes grouped together in examples to streamline the disclosure. This type of disclosure should not be interpreted as indicating that the claimed examples have more features than are expressly stated in each claim. Rather, as the following claims reflect, the subject matter may consist of fewer than all the features of a single disclosed example. Consequently, the following claims are hereby incorporated into the detailed description, with each claim potentially representing a separate example.While each claim can stand as a separate example, it should be noted that, although dependent claims refer back to a specific combination with one or more other claims, other examples also include a combination of dependent claims with the subject matter of any other dependent claim, or a combination of any feature with other dependent or independent claims. Such combinations are included unless it is stated that a specific combination is not intended. Furthermore, it is intended that a combination of features of a claim with any other independent claim is also included, even if that claim is not directly dependent on the independent claim. Reference symbol list 10 evaporators 11 evaporator containers 14 Evaporator outlet pipe 20 compressors 21 compressor tanks 22 Compressor inlet pipe 24 Compressor outlet pipe 30 liquefiers 31 condenser tanks 32 Condenser inlet pipe 40 frame 42 Intercoolers 43 Intercooling room 44 Intercooler collection tanks 50 Vibration control device 60 elastic connecting element 70 compressor stage 70-1 first compressor stage 70-n last compressor stage 76 sound-absorbing material 78 spiral cases 79 Floor 80 Drive motor 82 vibration dampers 83 flap 84 Bypass pipe 85 Bypass pipe / Bypass line 90 burst buckets 92 Free cooling module 94 elastic dampers 96 Foreign gas extraction arrangement 98 Catching device 100 Heat pump 101 System 102 springs 103 dampers 104 mass 105 reference symbols in the table to Fig. 6c 106 guide pin 107 active systems 108 Mounting point 180 procedures 182 steps 190 procedures 192 steps

Claims

[1] Heat pump (100) with the following features: an evaporator (10) for evaporating working fluid to obtain a working vapor; a compressor (20) for compressing the working steam to obtain a compressed working steam; a condenser (30) for condensing the compressed working steam; a frame (40) to which the evaporator (10), the condenser (30) and / or the compressor (20) is / are attached; and a vibration influencing device (50) which is designed to decouple the compressor (20) from the evaporator (10), from the condenser (30) and / or from the frame (40) in terms of vibration, and / or to actively or passively reduce vibration of the compressor (20), wherein the compressor (20) has a burst protection device which is designed to hold one or more parts of the compressor (20) preferably within the frame (40) in the event of a burst of the compressor (20). [2] Heat pump (100) according to claim 1, wherein the vibration influencing device (50) comprises an elastic connecting element (60) between the compressor (20) and the frame (40), between the evaporator (10) and the frame (40) and / or between the condenser (30) and the frame (40). [3] Heat pump (100) according to claim 1 or 2, wherein the compressor (20) has a compressor inlet pipe (22) and a compressor outlet pipe (24), wherein the evaporator (10) has an evaporator outlet pipe (14) and the condenser (30) has a condenser inlet pipe (32), wherein the vibration influencing device (50) has an elastic connecting element (60) between the compressor outlet pipe (24) and the condenser inlet pipe (32) and / or between the evaporator outlet pipe (14) and the compressor inlet pipe (22). [4] Heat pump (100) according to claim 3, wherein the compressor (20) has two or more compressor stages (70), wherein the compressor inlet pipe (22) is arranged at a first compressor stage (70-1) and the compressor outlet pipe (24) is arranged at a second or last compressor stage (70-n), and wherein an intercooler tank is arranged between the first compressor stage (70-1) and the second or last compressor stage (70-n), wherein the vibration influencing device (50) has an elastic connecting element (60) between the intercooler tank and the first compressor stage (70-1) and / or between the intercooler tank and the second or last compressor stage (70-n). [5] Heat pump (100) according to claim 2, wherein the elastic connecting element (60) connected to the frame (40) is designed as an elastic decoupling element, as a vibration-metal buffer, as a rubber-coated screw / nut connection or as a metal damper. [6] Heat pump (100) according to claim 2, 3 or 4, wherein the elastic connecting element (60) is designed as an elastic connecting sleeve, as a fiber-reinforced hose sleeve or as a rubber sleeve. [7] Heat pump (100) according to claim 6, wherein the elastic connecting element (60) is designed such that a free length of the elastic connecting element (60) between the fixed pipe ends is less than or equal to 20 mm. [8] Heat pump (100) according to one of the preceding claims, wherein the compressor (20) comprises a spiral casing (78) and a drive motor (80) connected to the spiral casing (78), wherein the vibration influencing device (50) is designed to elastically couple the spiral casing (78) to the evaporator (10), the condenser (30) and / or the frame (40). [9] Heat pump (100) according to one of the preceding claims, wherein the vibration influencing device (50) comprises a vibration damper (82) which is arranged on the compressor (20) and is designed to passively or actively reduce the vibration of the compressor (20) by operation of the compressor (20). [10] Heat pump (100) according to claim 9, wherein the compressor (20) comprises a spiral casing (78) and a drive motor (80) connected to the spiral casing (78), wherein the vibration damper (82) is arranged on the spiral casing (78) or on the drive motor (80). [11] Heat pump (100) according to one of the preceding claims, which has a bypass pipe (85) between the evaporator (10) and the condenser (30), wherein the vibration influencing device (50) has at least one elastic connecting element (60) between the bypass pipe (85) and the evaporator (10) or between the bypass pipe (85) and the condenser (30), and / or wherein the bypass pipe (85) is designed as a flexible pipe. [12] Heat pump (100) according to one of the preceding claims, which further comprises a free-cooling module (92) arranged on the frame (40), wherein the vibration-influencing device (50) has an elastic damper (94) between the free-cooling module (92) and the frame (40), and / or which further comprises an external gas extraction arrangement (96), wherein the vibration-influencing device (50) is designed to vibrationally decouple the external gas extraction arrangement (96) from the frame (40) and / or the condenser (30). [13] Heat pump (100) according to one of the preceding claims, wherein the compressor (20) comprises a drive motor (80) and a spiral casing (78) arranged on the frame (40), wherein the burst protection comprises a burst bucket (90) above the drive motor (80) and / or a catching device (98) on the spiral casing (78) and the frame (40), or wherein the burst protection comprises a burst bucket (90) above the drive motor (80), wherein the space between the burst bucket (90) and the drive motor (80) is filled with sound-insulating material (76).

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