Carbon dioxide cold and heat combined supply heat regenerator

Abstract

The invention discloses a carbon dioxide cold and heat combined supply heat regenerator, and particularly relates to the technical field of carbon dioxide heat pumps, the carbon dioxide cold and heat combined supply heat regenerator comprises a high-pressure coil pipe and a low-pressure coil pipe which extend in a wave shape and are arranged in a staggered mode, the high-pressure coil pipe and the low-pressure coil pipe are crossed, and a cushioning assembly is installed at the staggered position of the high-pressure coil pipe and the low-pressure coil pipe; the high-pressure coil pipe and the low-pressure coil pipe are sleeved with a sleeve, an interlayer is attached to the inner wall of the sleeve, four rubber filling strips with right-angle fan-shaped sections are installed in the sleeve, the arc-shaped outer walls of the rubber filling strips are attached to the inner wall of the interlayer, and a cross-shaped pipeline channel is formed among the four rubber filling strips. The coil pipes which are arranged in a wave-shaped staggered mode are adopted, the cushioning effect is embedded in the coil pipe fitting, and the outer portion of the coil pipe fitting is wrapped with the sleeve, the interlayer, the rubber filling strip and other components, so that pipeline resonance in the equipment working process is effectively reduced, and the resonance noise and the blow-by phenomenon are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide heat pumps, and more particularly to a carbon dioxide combined cooling and heating regenerator. Background Art

[0002] The regenerators used in existing carbon dioxide heat pumps are mainly divided into casing and stainless steel plate types. The casing heat exchanger has problems such as high operating noise, easy gas cross-talk, and difficult processing when in use. The reasons are: low-pressure CO 2 , high pressure CO outside the pipe 2 When the unit is running, the high-pressure and low-pressure gas or liquid convection heat exchange is easy to produce resonance and cause large noise. At the same time, the resonance will also cause friction between the inner and outer tubes, resulting in high-pressure and low-pressure gas cross-talk (especially for DC variable frequency CO 2 For this reason, we propose a CO 2 Heat pump regenerator is used to solve this problem. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a carbon dioxide combined cooling and heating regenerator.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a carbon dioxide combined cooling and heating heat regenerator, comprising a high-pressure coil and a low-pressure coil extending in a wave shape and arranged in an interlaced manner, the high-pressure coil and the low-pressure coil are cross-shaped, and a shock-absorbing component is installed at the interlaced position of the high-pressure coil and the low-pressure coil, a sleeve is provided on the outside of the high-pressure coil and the low-pressure coil, an interlayer is attached to the inner wall of the sleeve, and four rubber filling strips with a right-angled fan-shaped cross section are installed inside the sleeve, the arc-shaped outer wall of the rubber filling strip is attached to the inner wall of the interlayer, a "cross"-shaped pipeline channel is formed between the four rubber filling strips, and the high-pressure coil and the low-pressure coil arranged in an interlaced manner extend inside the pipeline channel.

[0005] In a preferred embodiment, a first connecting pipe and a second connecting pipe are respectively connected to both ends of the high-pressure coil, a third connecting pipe and a fourth connecting pipe are respectively connected to both ends of the low-pressure coil, and the other ends of the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are all connected to a telescopic hose, and a positioning pipe is installed at the other end of the telescopic hose.

[0006] In a preferred embodiment, sealing covers are installed at both ends of the sleeve, the positioning tube is plugged into the sealing covers, and a connecting flange is installed at the end of the positioning tube located outside the sealing covers.

[0007] In a preferred embodiment, the high-pressure coil is composed of a plurality of long first coils and a plurality of semicircular first bends connected in sequence, and the low-pressure coil is composed of a plurality of long second coils and a plurality of semicircular second bends connected in sequence, and the plurality of first coils and the plurality of second coils are arranged in a cross-like manner and staggered in sequence.

[0008] In a preferred embodiment, the shock-absorbing assembly includes a first shock-absorbing tube sleeved on the outside of the first coil, a second shock-absorbing tube sleeved on the outside of the second coil, and a shock-absorbing block located on the inner sides of the first bend and the second bend. The adjacent first shock-absorbing tubes and the second shock-absorbing tubes are cross-arranged, and the outer walls are spot-welded to each other.

[0009] In a preferred embodiment, the shock absorbing block is arranged in a block shape, and a semicircular groove is opened at one end of the shock absorbing block and a U-shaped groove is opened at the other end.

[0010] In a preferred embodiment, the semicircular groove of the shock-absorbing block located inside the first curved pipe fits on the outer wall of the second shock-absorbing pipe, and the U-shaped groove of the shock-absorbing block located inside the first curved pipe is wrapped around the inner wall of the first curved pipe.

[0011] In a preferred embodiment, the semicircular groove of the shock absorbing block located inside the second curved pipe fits on the outer wall of the first shock absorbing pipe, and the U-shaped groove of the shock absorbing block located inside the second curved pipe is wrapped around the inner wall of the second curved pipe.

[0012] Technical effects and advantages of the present invention:

[0013] The present invention adopts coils that are arranged in a wave shape and staggered with each other, embeds a shock-absorbing effect in the coil, and wraps the casing, interlayer, rubber filling strip and other components on the outside, thereby effectively reducing the pipeline resonance during the operation of the equipment, reducing the resonance noise and air cross-talk. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the sleeve of the present invention.

[0016] Figure 3 It is a partial structural schematic diagram of the rubber filling strip, high-pressure coil and low-pressure coil of the present invention.

[0017] Figure 4 It is a schematic diagram of the staggered structure of the high-pressure coil and the low-pressure coil of the present invention.

[0018] Figure 5 It is a schematic diagram of the internal cross-sectional structure of the sleeve of the present invention.

[0019] Figure 6It is a partial structural schematic diagram of the shock absorbing block of the present invention.

[0020] The accompanying drawings are marked as: 1 high-pressure coil, 2 low-pressure coil, 3 casing, 4 interlayer, 5 rubber filling strip, 6 first connecting pipe, 7 second connecting pipe, 8 third connecting pipe, 9 fourth connecting pipe, 10 telescopic hose, 11 positioning pipe, 12 cover, 13 connecting flange, 14 first coil, 15 first elbow, 16 second coil, 17 second elbow, 18 first damping pipe, 19 second damping pipe, 20 damping block, 21 semicircular groove, 22 U-shaped groove, 23 pipeline channel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-6 A carbon dioxide combined cooling and heating regenerator is shown, comprising a high-pressure coil 1 and a low-pressure coil 2 extending in a wave shape and arranged in an interlaced manner, the high-pressure coil 1 and the low-pressure coil 2 are cross-shaped, and a shock-absorbing component is installed at the interlaced position of the high-pressure coil 1 and the low-pressure coil 2, a sleeve 3 is sleeved on the outside of the high-pressure coil 1 and the low-pressure coil 2, an interlayer 4 is attached to the inner wall of the sleeve 3, and four rubber filling strips 56 with a right-angle fan-shaped cross section are installed inside the sleeve, the arc-shaped outer wall of the rubber filling strip 56 is attached to the inner wall of the interlayer 4, and a "cross"-shaped pipeline channel 23 is formed between the four rubber filling strips 56, and the high-pressure coil 1 and the low-pressure coil 2 arranged in an interlaced manner extend inside the pipeline channel 23;

[0023] Based on the above, the high-pressure coil 1 and the low-pressure coil 2 arranged in a wave shape are intertwined and wound with each other, which can greatly increase the distance that the gas flows through in the pipeline within a limited distance and space, thereby increasing the heat exchange area. At the same time, a shock-absorbing component is arranged at the staggered position of the coils, so that when the high-pressure coil 1 and the low-pressure coil 2 resonate during operation, the shock-absorbing component can be affected by the vibration reduction, thereby reducing the pipeline resonance phenomenon and reducing the resonance noise;

[0024] Furthermore, the sleeve 3 is installed with an interlayer 4, which is used for isolation. A plurality of rubber filling strips 56 are filled inside. The rubber filling strips 56 are used to wrap the staggered high-pressure coil 1 and the low-pressure coil 2 to achieve isolation from the sleeve 3, ensure the stability of the staggered coils in the sleeve 3, perform buffering and sound insulation, effectively improve the heat insulation and sound insulation of the pipeline components, and absorb certain vibrations and noise.

[0025] The two ends of the high-pressure coil 1 are respectively connected to a first connecting pipe 6 and a second connecting pipe 7, and the two ends of the low-pressure coil 2 are respectively connected to a third connecting pipe 8 and a fourth connecting pipe 9, and the other ends of the first connecting pipe 6, the second connecting pipe 7, the third connecting pipe 8 and the fourth connecting pipe 9 are all connected to a telescopic hose 10, and a positioning pipe 11 is installed at the other end of the telescopic hose 10;

[0026] Covers 12 are installed at both ends of the sleeve 3 , the positioning tube 11 is plugged into the cover 12 , and a connecting flange 13 is installed at the end of the positioning tube 11 located outside the cover 12 .

[0027] Based on the above, the high-pressure coil 1 and the low-pressure coil 2 are placed inside the casing 3, and both ends are connected to the outside through the telescopic hose 10 and the positioning tube 11. When in use, they are connected to the pipelines of other components of the carbon dioxide heat pump system through the connecting flange 13;

[0028] Furthermore, during operation, the high-temperature and high-pressure gas enters the telescopic hose 10 connected to the first connecting pipe 6 from the positioning pipe 11 connected to the first connecting pipe 6, and then enters the inside of the high-temperature coil from the first connecting pipe 6, and then enters the expansion valve from the second connecting pipe 7 and the positioning pipe 11 at the other end of the high-temperature coil to cut off and reduce the pressure, and the low-pressure and low-temperature gas enters the telescopic hose 10 connected to the third connecting pipe 8 from the positioning pipe 11 connected to the third connecting pipe 8, and then enters the inside of the low-temperature coil from the third connecting pipe 8, and then the low-temperature and low-pressure gas enters the compressor end from the second connecting pipe 7 at the other end of the high-temperature coil for countercurrent heat exchange.

[0029] In this process, the resonance between the high-pressure coil 1 and the low-pressure coil 2 is buffered and absorbed by components such as the shock-absorbing assembly and the rubber filling strip 56, thereby reducing the resonance of the pipeline components during operation and reducing the pipeline resonance noise. At the same time, a movable telescopic hose 10 is arranged between the two ends of the coil and the positioning tube 11 fixed on the cover 12, so that the pipeline components have a certain range of displacement space during operation, and have a certain adjustment range when the pressure of the pipeline components is too high during operation, thereby reducing the probability of falling off and cracking between structural components.

[0030] The high-pressure coil 1 is composed of a plurality of long first coils 14 and a plurality of semicircular first bends 15 connected in sequence, and the low-pressure coil 2 is composed of a plurality of long second coils 16 and a plurality of semicircular second bends 17 connected in sequence, and the plurality of first coils 14 and the plurality of second coils 16 are arranged in a cross-like manner in sequence;

[0031] The damping assembly includes a first damping tube 18 sleeved outside the first coil 14, a second damping tube 19 sleeved outside the second coil 16, and a damping block 20 located inside the first elbow 15 and the second elbow 17. The adjacent first damping tubes 18 and second damping tubes 19 are arranged in a cross shape, and the outer walls are spot-welded to each other.

[0032] Based on the above, the high-pressure coil 1 is connected in sequence through a plurality of first coils 14 and first bends 15, and extends in a wave shape. The low-pressure coil 2 is connected in sequence through a plurality of second coils 16 and second bends 17, and extends in a wave shape. The two are arranged alternately and cross-crossed on the side, so that the coil components can increase the path distance inside the pipeline at the same distance, increase the heat exchange area and reduce noise.

[0033] The intersecting parts between the coils are sleeved with shock-absorbing tubes and are spot-welded in sequence to prevent the coil unit from vibrating during convection heat exchange, thereby avoiding resonance noise and air cross-talk.

[0034] The shock-absorbing block 20 is arranged in a block shape, with a semicircular groove 21 at one end of the shock-absorbing block 20 and a U-shaped groove 22 at the other end. The semicircular groove 21 of the shock-absorbing block 20 located on the inner side of the first bend pipe 15 is attached to the outer wall of the second shock-absorbing tube 19, the U-shaped groove 22 of the shock-absorbing block 20 located on the inner side of the first bend pipe 15 is wrapped around the inner side wall of the first bend pipe 15, the semicircular groove 21 of the shock-absorbing block 20 located on the inner side of the second bend pipe 17 is attached to the outer wall of the first shock-absorbing tube 18, and the U-shaped groove 22 of the shock-absorbing block 20 located on the inner side of the second bend pipe 17 is wrapped around the inner side wall of the second bend pipe 17.

[0035] The curved part of the coil is filled with a shock-absorbing block 20, which is made of elastic rubber material. One end of the shock-absorbing block 20 is in contact with the outer wall of the shock-absorbing tube, and the other end is provided with a U-shaped groove 22 which is wrapped around the inner wall of the corresponding curved tube. The part of the shock-absorbing tube at the coil that is spot-welded is supported and cushioned, which further reduces the resonance of the pipeline during operation, thereby reducing equipment noise.

[0036] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0037] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0038] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A carbon dioxide combined cooling and heating regenerator, characterized in that: It comprises high-pressure coils and low-pressure coils which extend in a wave shape and are arranged in an interlaced manner. The high-pressure coils and the low-pressure coils are cross-crossed. Shock-absorbing components are installed at the interlaced positions of the high-pressure coils and the low-pressure coils. A sleeve is provided on the outside of the high-pressure coils and the low-pressure coils. An interlayer is attached to the inner wall of the sleeve. Four rubber filling strips with a right-angled fan-shaped cross-section are installed inside the sleeve. The curved outer wall of the rubber filling strip is attached to the inner wall of the interlayer. A "cross"-shaped pipeline channel is formed between the four rubber filling strips. The high-pressure coils and the low-pressure coils which are arranged in an interlaced manner extend inside the pipeline channel.

2. The carbon dioxide combined cooling and heating regenerator according to claim 1, characterized in that: The first connecting pipe and the second connecting pipe are respectively connected at both ends of the high-pressure coil, and the third connecting pipe and the fourth connecting pipe are respectively connected at both ends of the low-pressure coil. The other ends of the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are all connected to a telescopic hose, and a positioning pipe is installed at the other end of the telescopic hose.

3. The carbon dioxide combined cooling and heating regenerator according to claim 2, characterized in that: Sealing covers are installed at both ends of the sleeve, the positioning tube is plugged into the sealing covers, and a connecting flange is installed at the end of the positioning tube located outside the sealing covers.

4. The carbon dioxide combined cooling and heating regenerator according to claim 1, characterized in that: The high-pressure coil is composed of a plurality of long first coils and a plurality of semicircular first bends connected in sequence, and the low-pressure coil is composed of a plurality of long second coils and a plurality of semicircular second bends connected in sequence. The plurality of first coils and the plurality of second coils are arranged in a cross-like manner.

5. The carbon dioxide combined cooling and heating regenerator according to claim 4, characterized in that: The shock-absorbing assembly includes a first shock-absorbing tube sleeved on the outside of the first coil, a second shock-absorbing tube sleeved on the outside of the second coil, and a shock-absorbing block located on the inner sides of the first bend and the second bend. The adjacent first shock-absorbing tubes and the second shock-absorbing tubes are cross-arranged, and the outer walls are spot-welded to each other.

6. The carbon dioxide combined cooling and heating regenerator according to claim 5, characterized in that: The shock absorbing block is arranged in a block shape, and a semicircular groove is provided at one end of the shock absorbing block and a U-shaped groove is provided at the other end.

7. The carbon dioxide combined cooling and heating regenerator according to claim 6, characterized in that: The semicircular groove of the shock absorbing block located on the inner side of the first curved pipe is attached to the outer wall of the second shock absorbing pipe, and the U-shaped groove of the shock absorbing block located on the inner side of the first curved pipe is wrapped on the inner side wall of the first curved pipe.

8. The carbon dioxide combined cooling and heating regenerator according to claim 6, characterized in that: The semicircular groove of the shock absorbing block located inside the second curved pipe is attached to the outer wall of the first shock absorbing pipe, and the U-shaped groove of the shock absorbing block located inside the second curved pipe is wrapped around the inner wall of the second curved pipe.

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