Overlapped refrigeration cycle device

Abstract

The utility model relates to the technical field of overlapping type refrigeration cycle devices, in particular to an overlapping type refrigeration cycle device which comprises liquefying machines and low-temperature pumps, the front faces of the two liquefying machines are fixedly connected with the outer walls of the low-temperature pumps respectively, the inner sides of the two liquefying machines are fixedly connected, the front face of the low-temperature pump located on the lower portion is communicated with a first bent pipe, and the front face of the low-temperature pump located on the lower portion is communicated with a second bent pipe. The front face of the low-temperature pump located on the upper portion communicates with a second bent pipe, the rotating vertical cylinder drives a first screw and a top plate to rotate, so that the top of the top plate can be attached to the external connecting face, then the top plate is rotated, the rotating top plate enables the first screw to rotate upwards on the inner wall of the vertical cylinder, the length of the vertical cylinder and the length of the first screw are increased, and the first screw is rotated upwards. The top of the top plate is attached to the connecting face, then the bolt penetrates through the top plate to be fixed to the connecting face, fixing of the bent pipe is achieved, the vibration influence of a low-temperature pump on the bent pipe is reduced, the use cost of the overlapping type refrigeration cycle device is reduced, and the service life of the overlapping type refrigeration cycle device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of overlapping refrigeration cycle devices, in particular to an overlapping refrigeration cycle device. Background Art

[0002] A superimposed refrigeration cycle device is a device that can transfer heat from one place to another to achieve the purpose of cooling.

[0003] For example, a cascade refrigeration cycle device with the authorization announcement number "CN104344590A" is composed of multiple overlapping refrigeration cycles operating at different temperatures, and high, medium and low temperature refrigerants are used in the high, medium and low temperature parts respectively. For natural gas liquefaction, a three-stage cascade refrigeration cycle with methane compressor, ethylene compressor and propane compressor as refrigerants is now mostly used to provide the cooling capacity required for natural gas liquefaction. The purified raw natural gas is gradually cooled in the propane cooler, ethylene cooler and methane cooler, condensed, liquefied and supercooled, and finally sent to the storage tank by a low-temperature pump. However, in the use of the overlapping refrigeration cycle device, the liquefied gas needs to be transported through a pipeline, and the pipeline transportation needs to be coordinated with a low-temperature pump. The low-temperature pump will cause the pipeline to vibrate during operation, and the pipeline has no support structure. Long-term vibration will loosen the pipeline connection of the overlapping refrigeration cycle device, which is prone to leakage and requires regular maintenance, which increases the use cost of the overlapping refrigeration cycle device and shortens the service life of the overlapping refrigeration cycle device. Utility Model Content

[0004] The utility model aims to solve the problem of increased use cost and shortened service life of a superimposed refrigeration cycle device, and proposes a superimposed refrigeration cycle device.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A superimposed refrigeration cycle device is designed, including a liquefier and a cryogenic pump, wherein the front faces of the two liquefiers are respectively fixedly connected to the outer walls of the cryogenic pump, and the inner sides of the two liquefiers are fixedly connected to each other. The front face of the cryogenic pump located at the bottom is connected to a first bend pipe, and the front face of the cryogenic pump located at the top is connected to a second bend pipe. The outer walls of the first bend pipe and the second bend pipe are respectively connected to reinforcement structures, and the bottom of the liquefier located at the bottom is connected to a support structure.

[0007] Preferably, the reinforcement structure includes a cylinder and a curved plate, the inner walls of the two cylinders are respectively fixed to the outer walls of the first curved pipe and the second curved pipe, the front and rear ends of the top of the cylinder are respectively fixed to the top of the curved plate, the inner wall of the curved plate is rotatably connected to a straight rod, the inner side of the straight rod is fixed to a vertical cylinder, the inner wall of the vertical cylinder is threadedly connected to a first screw, and the top of the first screw is fixed to a top plate.

[0008] Preferably, outer walls of the plurality of straight rods are all threaded.

[0009] Preferably, the bottoms of the first curved pipe and the second curved pipe are both connected to a tank body.

[0010] Preferably, the supporting structure includes a square frame and a second screw, the top of the square frame is fixedly connected to the bottom of the liquefier, the four corners of the outer wall of the square frame are respectively threadedly connected to the outer wall of the second screw, a handle is fixed to the outer side of the second screw, the inner wall of the square frame is slidably clamped with a horizontal plate, and the outer side of the horizontal plate is fixed with a curved block.

[0011] Preferably, the outer circular opening of the transverse plate is plugged into the inner side of the outer wall of the second screw.

[0012] The utility model proposes an overlapping refrigeration cycle device, which has the following beneficial effects: the straight rod in the reinforcement structure is rotated on the inner wall of the curved plate, the rotating straight rod causes the vertical cylinder to rotate, and the rotating vertical cylinder rotates with the first screw and the top plate, so that the top of the top plate can fit with the external connection surface, and then the top plate is rotated, and the rotating top plate causes the first screw to rotate upward on the inner wall of the vertical cylinder, so that the length of the vertical cylinder and the first screw is increased, so that the top of the top plate fits with the connection surface, and then the bolts pass through the top plate and fix the connection surface to achieve fixation of the bent pipe, reduce the vibration influence of the low-temperature pump on the bent pipe, reduce the use cost of the overlapping refrigeration cycle device, and ensure the service life of the overlapping refrigeration cycle device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the connection relationship between the middle vertical cylinder, the first screw and the top plate;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of A;

[0016] Figure 4 for Figure 1 Schematic diagram of the connection relationship between the middle frame, cross plate and curved block;

[0017] Figure 5 for Figure 4 Schematic diagram of the structure of B;

[0018] Figure 6 for Figure 1 Schematic diagram of the connection relationship between the middle cross plate and the curved block.

[0019] In the figure: 1. Liquefaction machine, 2. Reinforcement structure, 201. Cylinder, 202. Curved plate, 203. Straight rod, 204. Vertical cylinder, 205. First screw, 206. Top plate, 3. Support structure, 301. Square frame, 302. Second screw, 303. Handle, 304. Horizontal plate, 305. Curved block, 4. Cryogenic pump, 5. First bend pipe, 6. Second bend pipe, 7. Tank body, 8. Ring, 9. Handle. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Example 1:

[0022] See also Figure 1-6 : In this embodiment, an overlapping refrigeration cycle device includes a liquefier 1 and a cryogenic pump 4. The front faces of the two liquefiers 1 are respectively fixedly connected to the outer walls of the cryogenic pump 4. The model of the cryogenic pump 4 is selected according to the use requirements. How to operate and use the liquefier 1 is already an existing technology and will not be elaborated on in detail. The model is selected according to the use requirements. The inner sides of the two liquefiers 1 are fixedly connected. The front face of the lower cryogenic pump 4 is connected to a first bend 5, and the front face of the upper cryogenic pump 4 is connected to a second bend 6. The outer walls of the first bend 5 and the second bend 6 are respectively connected to a reinforcement structure 2, and the bottom of the lower liquefier 1 is connected to a support structure 3.

[0023] The reinforcement structure 2 includes a cylinder 201 and a curved plate 202. The inner walls of the two cylinders 201 are fixedly connected to the outer walls of the first curved tube 5 and the second curved tube 6 respectively. The front and rear ends of the top of the cylinder 201 are fixedly connected to the top of the curved plate 202 respectively. The inner wall of the curved plate 202 is rotatably connected to a straight rod 203. The straight rod 203 is rotated by the bearing on the inner wall of the curved plate 202 under force. The inner side of the straight rod 203 is fixedly connected to a vertical cylinder 204. The inner wall of the vertical cylinder 204 is threadedly connected to a first screw 205. The first screw 205 is rotated up and down by the inner wall of the vertical cylinder 204 under force. The top of the first screw 205 is fixedly connected to a top plate 206. The left and right sides of the top of the top plate 206 are respectively processed with threaded openings. The outer walls of multiple straight rods 203 are all processed with threads.

[0024] By rotating the straight rod 203 in the reinforcement structure 2 on the inner wall of the curved plate 202, the rotating straight rod 203 causes the vertical tube 204 to rotate, and the rotating vertical tube 204 rotates with the first screw 205 and the top plate 206, so that the top of the top plate 206 can fit with the external connection surface, and then the top plate 206 is rotated, and the rotating top plate 206 causes the first screw 205 to rotate upward on the inner wall of the vertical tube 204, so that the length of the vertical tube 204 and the first screw 205 is increased, so that the top of the top plate 206 fits with the connection surface, and then the bolt passes through the top plate 206 and fixes it to the connection surface, thereby achieving the fixation of the bent pipe, reducing the vibration influence of the low-temperature pump 4 on the bent pipe, reducing the use cost of the overlapping refrigeration cycle device, and ensuring the service life of the overlapping refrigeration cycle device.

[0025] The bottoms of the first curved pipe 5 and the second curved pipe 6 are both connected to the tank body 7. The supporting structure 3 includes a square frame 301 and a second screw 302. The top of the square frame 301 is fixedly connected to the bottom of the liquefier 1. The four corners of the outer wall of the square frame 301 are respectively threadedly connected to the outer wall of the second screw 302. A handle 303 is fixedly connected to the outer side of the second screw 302. The handle 303 facilitates the forward and backward rotation of the second screw 302 through the square frame 301. The inner wall of the square frame 301 is slidably connected with a horizontal plate 304. The horizontal plate 304 slides left and right through the inner wall of the square frame 301 under force. A curved block 305 is fixedly connected to the outer side of the horizontal plate 304. The outer circular mouth of the horizontal plate 304 is plugged into the inner side of the outer wall of the second screw 302.

[0026] Worked originally:

[0027] The external pipeline is connected to the rear end face of the liquefier 1, and the natural gas cylinder is sent into the interior of the liquefier 1. The refrigeration unit inside the liquefier 1 cools the natural gas to reduce the temperature to zero degrees. The natural gas close to zero degrees is compressed by the liquefier inside the liquefier 1, and the zero-degree natural gas is compressed into liquid. At this time, the cryogenic pump 4 works to extract the liquid natural gas inside the liquefier 1 and send it into the interior of the tank body 7 through the first bend 5 and the second bend 6 for storage.

[0028] Placement of overlapping refrigeration cycle device:

[0029] First, the handle 303 is used to rotate the second screw 302 outward through the square frame 301, so that the inner side of the outer wall of the second screw 302 is separated from the circular opening corresponding to the outer wall of the horizontal plate 304, and then the horizontal plate 304 moves left and right on the inner wall of the square frame 301. The moving horizontal plate 304 moves the curved block 305 left and right, so that the distance between the two curved blocks 305 is adjusted. At the same time, the position of the curved block 305 meets the position of the external bracket, and then the handle 303 is used to rotate the second screw 302 inward, so that the inner side of the outer wall of the second screw 302 is connected to the circular opening corresponding to the outer wall of the horizontal plate 304, completing the position fixing of the horizontal plate 304 and the curved block 305, and then the bottom of the curved block 305 is fit with the top of the external bracket to complete the placement of the overlapping refrigeration cycle device.

[0030] Overlap refrigeration cycle device pipe support:

[0031] The straight rod 203 is rotated on the inner wall of the curved plate 202, and the rotating straight rod 203 rotates the vertical cylinder 204, and the rotating vertical cylinder 204 rotates with the first screw 205 and the top plate 206, so that the top of the top plate 206 can fit with the external connection surface, and then the top plate 206 is rotated, and the rotating top plate 206 causes the first screw 205 to rotate upward on the inner wall of the vertical cylinder 204, so that the length of the vertical cylinder 204 and the first screw 205 is increased, so that the top of the top plate 206 fits with the connection surface, and then the bolt passes through the top plate 206 and fixes it to the connection surface, thereby fixing the bent pipe and reducing the vibration influence of the low-temperature pump 4 on the bent pipe.

[0032] Example 2:

[0033] See also Figure 1-6 : In this embodiment, an overlapping refrigeration cycle device also includes a collar 8 and a handle 9. The inner wall of the collar 8 is threadedly connected to the outer wall of the straight rod 203, and the top of the collar 8 is fixedly connected to the bottom of the handle 9.

[0034] Worked originally:

[0035] After the straight rod 203 rotates on the inner wall of the curved plate 202, the handle 9 is used to rotate the collar 8 inward through the thread on the outer wall of the straight rod 203, so that the inner side of the collar 8 is pressed against the outer side of the curved plate 202, thereby fixing the position of the straight rod 203.

[0036] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A superimposed refrigeration cycle device, comprising a liquefier (1) and a cryogenic pump (4), characterized in that: The front faces of the two liquefiers (1) are respectively fixedly connected to the outer wall of the cryogenic pump (4), and the inner sides of the two liquefiers (1) are fixedly connected to each other. The front face of the cryogenic pump (4) located at the bottom is connected to a first curved pipe (5), and the front face of the cryogenic pump (4) located at the top is connected to a second curved pipe (6). The outer walls of the first curved pipe (5) and the second curved pipe (6) are respectively connected to a reinforcement structure (2), and the bottom of the liquefier (1) located at the bottom is connected to a support structure (3).

2. A superimposed refrigeration cycle device according to claim 1, characterized in that: The reinforcement structure (2) comprises a cylinder (201) and a curved plate (202); the inner walls of the two cylinders (201) are respectively fixedly connected to the outer walls of the first curved tube (5) and the second curved tube (6); the front and rear ends of the top of the cylinder (201) are respectively fixedly connected to the top of the curved plate (202); the inner wall of the curved plate (202) is rotatably connected to a straight rod (203); the inner side of the straight rod (203) is fixedly connected to a vertical cylinder (204); the inner wall of the vertical cylinder (204) is threadedly connected to a first screw rod (205); the top of the first screw rod (205) is fixedly connected to a top plate (206).

3. A superimposed refrigeration cycle device according to claim 2, characterized in that: The outer walls of the plurality of straight rods (203) are all processed with threads.

4. The stacked refrigeration cycle device according to claim 1, characterized in that: The bottoms of the first curved pipe (5) and the second curved pipe (6) are both connected to a tank body (7).

5. The stacked refrigeration cycle device according to claim 1, characterized in that: The support structure (3) comprises a square frame (301) and a second screw rod (302); the top of the square frame (301) is fixedly connected to the bottom of the liquefier (1); the four corners of the outer wall of the square frame (301) are respectively threadedly connected to the outer wall of the second screw rod (302); a handle (303) is fixedly connected to the outer side of the second screw rod (302); a horizontal plate (304) is slidably clamped on the inner wall of the square frame (301); and a curved block (305) is fixedly connected to the outer side of the horizontal plate (304).

6. A superimposed refrigeration cycle device according to claim 5, characterized in that: The outer circular opening of the transverse plate (304) is plugged into the inner side of the outer wall of the second screw rod (302).

Images