Tubular multiplier and refrigeration equipment

Abstract

The invention provides a tubular multiplier which comprises a first pipe body, the first pipe body comprises a first inner-layer pipeline and a first outer-layer pipeline, the first inner-layer pipeline is arranged in the first outer-layer pipeline, and a first refrigeration channel is formed between the first inner-layer pipeline and the first outer-layer pipeline; a first liquid supply outlet end pipe and a first liquid supply head end pipe are arranged at the two ends of the first outer-layer pipeline respectively, and one end of the first inner-layer pipeline is connected with an air return pipe on an external evaporator. Compared with the prior art, the refrigerating device has the following beneficial effects that the first pipe body is a refrigerating device composed of the double-layer pipeline, the inner-layer pipeline is made of high-heat-conduction metal, heat exchange of inner-layer fluid and outer-layer fluid is achieved through reverse flow of the inner-layer fluid and the outer-layer fluid, and refrigerant steam and non-evaporated refrigerant returning to a compressor unit from an evaporator in the inner layer are recycled; liquid refrigerant which flows from the compressor unit to the evaporator after being cooled through the condenser on the outer layer can be heated through the first liquid supply head end pipe to enter the first refrigeration channel for heat exchange.

Description

TECHNICAL FIELD

[0001] The application relates to a pipe type efficiency enhancer and refrigeration equipment. BACKGROUND

[0002] Two current liquid supply cooling modes are as follows: one is that high-temperature refrigerant vapor discharged by a compressor is condensed into liquid refrigerant by a condenser (water cooling or air cooling) and then directly sent to an evaporator to be evaporated for refrigeration.

[0003] Another mode is that an economizer is additionally arranged in the liquid supply pipeline based on the first mode to reduce the liquid supply temperature to about 5 DEG C, and then the refrigerant after temperature reduction is sent to the evaporator to be evaporated for refrigeration. This mode is mainly used in screw refrigeration units, because the screw compressor utilizes the economizer return gas to reduce the temperature of the screw.

[0004] The two modes above are as follows: one is that the refrigerant vapor returned by the evaporator is directly returned to the suction end of the compressor, and the other is that a gas-liquid separator is additionally arranged between the return gas pipeline and the suction port of the compressor to store excessive unevaporated refrigerant.

[0005] In the above technical state: the liquid supply temperature of the direct liquid supply system is usually about 7 DEG C higher than the normal temperature, the temperature difference between the liquid supply temperature and the storage temperature is large, and the efficiency is low. Because the refrigerant is evaporated, part of the refrigerant evaporates to reduce the temperature of another part of the unevaporated refrigerant, and only when the temperature of the part of the refrigerant is equal to or lower than the storage temperature can the cold energy generated by the evaporation of the remaining refrigerant be used to reduce the temperature in the storage; although the liquid supply with the economizer has a liquid supply temperature of about 5 DEG C, the temperature difference between the liquid supply temperature and the storage temperature is still more than 20 DEG C. The efficiency is about 15% higher than that of the liquid supply system without the economizer. The return gas part: whether the return gas temperature is low or not, the return gas temperature is close to the storage temperature. Therefore, the discharge temperature and the heat discharge amount of the compressor are low, and the efficiency of the compressor is not high. At the same time, when the unevaporated refrigerant in the return gas is excessive, liquid hammering is prone to occur, which causes damage to the compressor. Even the system with the gas-liquid separator, when the return liquid exceeds the storage capacity of the separator, liquid hammering also occurs, which damages the compressor. Therefore, the application provides a pipe type efficiency enhancer. SUMMARY

[0006] In view of the deficiencies of the prior art, the application aims to provide a pipe type efficiency enhancer and refrigeration equipment.

[0007] In order to achieve the above-mentioned purpose, the application is implemented by the following technical scheme:

[0008] A pipe type booster comprises a pipe body one, the pipe body one comprises an inner layer pipe one and an outer layer pipe one, the inner layer pipe one is arranged in the outer layer pipe one, and a refrigeration channel one is formed between the inner layer pipe one and the outer layer pipe one, both ends of the outer layer pipe one are respectively provided with a liquid supply end pipe one and a liquid supply head pipe one, one end of the inner layer pipe one is connected with a return air pipe on an external evaporator, the liquid supply end pipe one is connected with a liquid supply pipe on the external evaporator, and a communication pipe one is further arranged between the outer layer pipe one and the liquid supply end pipe one.

[0009] Further, the inner layer pipe one is made of high thermal conductivity metal, one side of the pipe body one is provided with a pipe body two, the pipe body two comprises an inner layer pipe two and an outer layer pipe two, a refrigeration channel two is formed between the inner layer pipe two and the outer layer pipe two, the pipe body one and the pipe body two are provided with a liquid supply end pipe two, the outer layer pipe two and the outer layer pipe one are jointly connected with a liquid supply head pipe two, one end of the inner layer pipe one and the inner layer pipe two are jointly connected with a fixed inlet pipe, the other end of the inner layer pipe one and the inner layer pipe two are jointly connected with a fixed outlet pipe which is connected with the return air pipe, the liquid supply end pipe two is connected with the liquid supply pipe, and a communication pipe two is further arranged between the outer layer pipe one, the outer layer pipe two and the liquid supply end pipe two.

[0010] Further, one side of the pipe body one and the pipe body two is provided with a pipe body three, the pipe body three comprises an inner layer pipe three and an outer layer pipe three, a refrigeration channel three is formed between the inner layer pipe three and the outer layer pipe three, the outer layer pipe three, the outer layer pipe two and the outer layer pipe one are provided with a liquid supply end pipe three and a liquid supply head pipe three, one end of the inner layer pipe one, the inner layer pipe two and the inner layer pipe three are jointly connected with a secondary fixed inlet pipe, the other end of the inner layer pipe one, the inner layer pipe two and the inner layer pipe three are jointly connected with a secondary fixed outlet pipe which is connected with the return air pipe, a communication pipe three is further arranged between the outer layer pipe one, the outer layer pipe two, the outer layer pipe three and the liquid supply end pipe three, and the liquid supply end pipe three is connected with the liquid supply pipe.

[0011] Further, a plurality of expansion valves and a drying filter are arranged on the liquid supply pipe.

[0012] A refrigeration device comprises a refrigeration box body, an evaporator and a pipe type booster, the refrigeration box body is installed at the bottom end of the evaporator, the pipe type booster penetrates the refrigeration box body, the refrigeration box body is divided into an upper box and a lower box, corresponding plates are respectively fixed on the upper box and the lower box, the corresponding plates are fixed through screws, semicircular holes for the pipe type booster to penetrate are respectively arranged on the upper box and the lower box, and two semicircular holes are combined into a whole circular hole.

[0013] Further, the upper box top end is fixedly provided with a plurality of sleeves, a T-shaped fixing rod is inserted into the sleeve, the head end of the fixing rod is fixed to the bottom end of the shell of the evaporator by cooperating with a screw, and a bolt penetrating through the fixing rod is arranged on the sleeve.

[0014] Further, a plurality of cooling coils arranged in a linear form are arranged inside the refrigeration box body, two collecting pipes are fixedly arranged on the outer wall of the lower box, the two ends of the cooling coils penetrate out of the lower box and are correspondingly connected to the collecting pipes, a refrigerant inlet valve is arranged on one of the collecting pipes, and a refrigerant outlet valve is connected to the other collecting pipe.

[0015] Further, a refrigeration device and a circulating pump are arranged on the outer wall of the lower box, the refrigeration device and the circulating pump are connected through a pipeline, a water outlet pipe is arranged on the circulating pump, a water cavity is fixedly arranged on the outer wall of the upper box, a butt joint pipe is fixedly arranged on the water cavity, the butt joint pipe and the water outlet pipe are connected through a pipeline connector, a water spraying pipe one is connected to the water cavity through a pipeline, and a plurality of water spraying heads one are uniformly arranged at the bottom end of the water spraying pipe one.

[0016] Further, a water spraying pipe two is arranged on one side of the water spraying pipe one, the water spraying pipe one and the water spraying pipe two are connected through a communication pipe four, and a plurality of water spraying heads two are uniformly arranged at the bottom end of the water spraying pipe two.

[0017] Further, a water spraying pipe three is arranged on one side of the water spraying pipe one and the water spraying pipe two, a plurality of water spraying heads three are uniformly arranged at the bottom end of the water spraying pipe three, and the water spraying pipe three is connected to the water spraying pipe one and the water spraying pipe two through a communication pipe five.

[0018] The beneficial effects of the present application are as follows:

[0019] The pipe type booster utilizes low-temperature steam of refrigerant from an evaporator, liquid low-temperature refrigerant which has not been evaporated, and liquid refrigerant supplied by a refrigeration system to exchange heat, so as to reduce the temperature of the supplied liquid refrigerant, improve the efficiency of the refrigeration system, increase the return gas temperature, eliminate liquid hammer, and improve the discharge volume and heat discharge volume of the compressor.

[0020] The pipe body one is composed of double-layer pipes, the inner layer pipe is made of high-thermal-conductivity metal, heat exchange of the inner and outer layer fluids is realized through counter flow of the inner and outer layer fluids, the inner layer passes refrigerant steam from the evaporator back to the compressor set and unevaporated refrigerant, the outer layer passes liquid refrigerant cooled by the condenser and then to the evaporator from the compressor set, and the supply liquid head end pipe one can heat the refrigerant to enter the refrigeration channel one for heat exchange.

[0021] The ideal refrigeration system is that the supply liquid temperature is the same as the warehouse temperature, and the suction temperature is the same as the compressor back gas superheat degree. In this state, the evaporation latent heat absorbed by the liquid refrigerant can be 100% used to cool the cold storage, the compressor discharge amount is large, the discharge efficiency is high, and the exhaust temperature is not too high, and the liquid strike situation does not occur. The present scheme utilizes the supercooled vapor and supercooled liquid refrigerant evaporation latent heat from the evaporator to exchange heat with the refrigeration system supply liquid, so that the refrigeration supply liquid is cooled to near the warehouse temperature, and the exhaust temperature is close to the compressor back gas superheat degree.

[0022] The present technical solution can greatly improve the efficiency of the refrigeration system, reduce energy consumption, reduce use cost, and improve the reliability of the equipment. Experiments have proved that the temperature of the fresh-keeping warehouse that can only be pulled to-5 degrees Celsius can be directly pulled to-15 degrees Celsius, the temperature of the-18 degrees Celsius warehouse can be pulled to-28 degrees Celsius, the temperature of the-35 degrees Celsius quick-freezing warehouse can be pulled to-45 degrees Celsius, and the suction pressure of the quick-freezing warehouse is 0 bar at-30 degrees Celsius in the normal state, and then works under negative pressure. The suction pressure of the quick-freezing warehouse equipped with the pipe-type efficiency enhancer is 0 bar at-45 degrees Celsius, which greatly improves the efficiency of the quick-freezing warehouse. BRIEF DESCRIPTION OF DRAWINGS

[0023] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the connection between the pipe body one of the pipe-type efficiency enhancer and the refrigeration equipment and the evaporator of the present application;

[0025] Figure 2 It is a schematic diagram of the connection between the pipe body two of the pipe-type efficiency enhancer and the refrigeration equipment and the evaporator of the present application;

[0026] Figure 3 It is a schematic diagram of the connection between the pipe body three of the pipe-type efficiency enhancer and the refrigeration equipment and the evaporator of the present application;

[0027] Figure 4 It is a schematic diagram of the connection between the refrigeration box body of the pipe-type efficiency enhancer and the refrigeration equipment and the evaporator of the present application;

[0028] Figure 5 It is a schematic diagram of the inside of the refrigeration box body of the pipe-type efficiency enhancer and the refrigeration equipment of the present application;

[0029] Figure 6 It is a schematic diagram of the water spraying pipe two of the pipe-type efficiency enhancer and the refrigeration equipment of the present application;

[0030] Figure 7 It is a schematic diagram of the water spraying pipe three of the pipe-type efficiency enhancer and the refrigeration equipment of the present application;

[0031] Figure 8 The present invention is a schematic diagram of the connection between a tubular amplifier and a refrigeration cabinet of a refrigeration device.

[0032] In the figure: 1, pipe body 1; 2, evaporator; 3, return air pipe; 4, liquid supply pipe; 5, inner layer pipe 1; 6, outer layer pipe 1; 7, cooling channel 1; 8, liquid supply outlet pipe 1; 9, liquid supply head end pipe 1; 10, connecting pipe 1; 11, pipe body 2; 12, inner layer pipe 2; 13, outer layer pipe 2; 14, cooling channel 2; 17, liquid supply outlet pipe 2; 18, fixed outlet pipe; 19, liquid supply head end pipe 2; 20, fixed inlet pipe; 21, connecting pipe 2; 22, pipe body 3; 23, inner layer pipe 3; 24, outer layer pipe 3; 25, cooling channel 3; 28, liquid supply outlet pipe 3; 29, Liquid supply head end pipe three; 30. Auxiliary fixed inlet pipe; 31. Connecting pipe three; 32. Expansion valve; 33. Dry filter; 34. Upper box; 35. Lower box; 36. Corresponding plate; 37. Semicircular hole; 38. Sleeve; 39. Fixed rod; 40. Cooling coil; 41. Collecting pipe; 42. Refrigerant inlet valve; 43. Refrigerant discharge valve; 44. Refrigerator; 45. Circulating pump; 46. Water outlet pipe; 47. Water cavity; 48. Butt joint; 49. Water spray pipe one; 50. Water spray head one; 51. Water spray pipe two; 52. Connecting pipe four; 53. Water spray pipe three; 54. Connecting pipe five; 55. Auxiliary fixed outlet pipe. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] See also Figure 1 The present invention provides a technical solution: a tubular amplifier, comprising a tube body 1, wherein the tube body 1 comprises an inner layer pipe 5 and an outer layer pipe 6, the inner layer pipe 5 is arranged in the outer layer pipe 6, and a refrigeration channel 7 is formed between the inner layer pipe 5 and the outer layer pipe 6, and a liquid supply outlet pipe 8 and a liquid supply head end pipe 9 are respectively provided at both ends of the outer layer pipe 6, one end of the inner layer pipe 5 is connected to the return air pipe 3 on the external evaporator 2, the liquid supply outlet pipe 8 is connected to the liquid supply pipe 4 on the external evaporator 2 through a matching pipe, and a connecting pipe 10 is further provided between the outer layer pipe 6 and the liquid supply outlet pipe 8.

[0035] See Figure 2The inner layer pipe 15 is made of a metal with high thermal conductivity, and a pipe body 2 11 is provided on one side of the pipe body 1, and the pipe body 2 11 includes an inner layer pipe 2 12 and an outer layer pipe 2 13, and a cooling channel 2 14 is formed between the inner layer pipe 2 12 and the outer layer pipe 2 13, and a liquid supply outlet pipe 2 17 is provided on the pipe body 1 and the pipe body 2 11, and the outer layer pipe 2 13 and the outer layer pipe 1 6 are commonly connected with a liquid supply head end pipe 2 19, and one end of the inner layer pipe 1 5 and the inner layer pipe 2 12 is commonly connected with a fixed inlet pipe 20, and the other end of the inner layer pipe 1 5 and the inner layer pipe 2 12 is commonly connected with a fixed outlet pipe 18 docking with the return air pipe 3, the liquid supply outlet pipe 2 17 is connected to the liquid supply pipe 4, and a connecting pipe 2 21 is also provided between the outer layer pipe 1 6, the outer layer pipe 2 13 and the liquid supply outlet pipe 2 17.

[0036] In this embodiment, the tube body 1 and the tube body 2 11 form two tube bodies, which are connected to the evaporator 2. According to the size of each evaporator, a tube body 1 of appropriate size is provided on the return air and liquid supply branches of each evaporator, which has a better effect of bearing the heat loss of all pipelines. In addition, the refrigeration channel formed by the outer layer tubes of these pipelines is convenient for heating the refrigerant, thereby improving the heat exchange effect of the pipeline.

[0037] See Figure 3 , a tube body three 22 is provided on one side of the tube body one 1 and the tube body two 11, and the tube body three 22 includes an inner layer pipe three 23 and an outer layer pipe three 24, and a refrigeration channel three 25 is formed between the inner layer pipe three 23 and the outer layer pipe three 24, and the outer layer pipe three 24, the outer layer pipe two 13 and the outer layer pipe one 6 are provided with a liquid supply outlet pipe three 28 and a liquid supply head end pipe three 29, the inner layer pipe one 5, the inner layer pipe two 12 and one end of the inner layer pipe three 23 are commonly connected with a secondary fixed inlet pipe 30, and the other end of the inner layer pipe one 5, the inner layer pipe two 12 and the inner layer pipe three 23 are commonly connected with a secondary fixed outlet pipe 55 docking with the return air pipe 3, and a connecting pipe three 31 is also provided between the outer layer pipe one 6, the outer layer pipe two 13, the outer layer pipe three 24 and the liquid supply outlet pipe three 28, and the liquid supply outlet pipe three 28 is connected to the liquid supply pipe 4.

[0038] In this embodiment, the pipe body 1, pipe body 2 11 and pipe body 3 22 form four pipe bodies, which are connected to the evaporator 2. According to the size of the sum of all evaporators, a pipe body 3 22 of appropriate size is configured in the machine room, that is, a suitable tubular booster is configured to better bear the heat loss of all pipes. The cooling channel formed by the outer layer of these pipes is convenient for heating the refrigerant, thereby improving the heat exchange effect of the pipe. This connection method can also connect several tubular boosters in parallel. Figure 3 Several tubular amplifiers connected in parallel can be directly seen.

[0039] A refrigeration equipment, including refrigeration box, evaporator and pipe enhancer, the refrigeration box is installed at the bottom end of the evaporator 2, the pipe enhancer is through the refrigeration box, the refrigeration box is divided into upper box 34 and lower box 35, the upper box 34 and the lower box 35 are respectively fixed with corresponding plates 36, the corresponding plates 36 are fixed by screws, the upper box 34 and the lower box 35 are respectively provided with semicircular holes 37 for the pipe enhancer to pass through, two semicircular holes 37 are combined into a whole circular hole, a plurality of sleeves 38 are fixed on the top end of the upper box 34, T-shaped fixing rods 39 are inserted into the sleeves 38, the head end of the fixing rod 39 is fixed on the bottom end of the shell of the evaporator 2 by screws, and bolts are arranged on the sleeves 38 and pass through the fixing rods 39.

[0040] The pipe body one 1, the pipe body two 11 and the pipe body three 22 are respectively connected with the evaporator 2, the pipe body one 1 and the evaporator 2 form a first kind of connection installation, a pipe body one 1 with a proper size is arranged on the gas return and liquid supply branch of each evaporator according to the size of each evaporator, that is, a pipe enhancer is arranged.

[0041] The pipe body two 11 and the evaporator 2 form a second kind of connection installation, a pipe body two 11 with a proper size is arranged according to the size of all evaporators, that is, a pipe enhancer with a proper size is arranged on the gas return main pipe and the liquid supply main pipe of the evaporator closest to the compressor unit.

[0042] The pipe body three 22 and the evaporator 2 form a third kind of connection installation, a pipe body three 22 with a proper size is arranged in the machine room according to the size of all evaporators, that is, a pipe enhancer with a proper size is arranged, the first kind has the smallest heat loss and the best effect, the second kind has a pipe line to produce some heat loss, and the effect is slightly worse than the first kind, the third kind has to bear the heat loss of all pipe lines, and the effect is slightly worse than the second kind, but for installation, the third kind is the best, the second kind is the second, and the first kind is the most complex and has the highest installation cost.

[0043] The refrigeration box is divided into the upper box 34 and the lower box 35, the two semicircular holes form a whole circular hole after the upper box 34 and the lower box 35 are combined, the circular hole is convenient for the outer layer pipe to pass through the outer surface of the inner layer pipe, so the two ends of all outer layer pipes pass through the refrigeration box, and the ends are convenient for connecting other components, but most of the outer layer pipes are located in the refrigeration box and cooperate with the components designed in the refrigeration box to carry out refrigeration, thereby further improving the refrigeration effect of the pipe enhancer.

[0044] The pipe booster can be installed in advance, which does not affect the subsequent installation of the refrigeration box body. The specific installation mode of the refrigeration box body is that the T-shaped fixing rod 39 is matched with the screw to fix the bottom end of the shell of the evaporator 2, then the sleeve 38 is sleeved on the fixing rod 39, and the sleeve 38 and the fixing rod 39 are fixed by bolts. As can be directly seen from the figure, the sleeve 38 and the fixing rod 39 have threaded holes, which can ensure the fixation of the bolts. However, the threaded holes on the fixing rod 39 are designed to be multiple, so that the sleeve 38 and the fixing rod 39 can be designed to be telescopic, which facilitates the corresponding fixation of the bolts in the threaded holes at different heights. In this way, the height of the upper box 34 can be adjusted, so that the semicircular hole 37 of the upper box 34 is more fitted to the outer surface of the outer layer pipe. Then, the lower box 35 is installed, and the upper box 34 and the lower box 35 are fixed by the corresponding plate 36 and the screw. Therefore, the semicircular hole 37 of the lower box 35 is also fitted to the outer surface of the outer layer pipe, and the semicircular holes of the two form a whole hole, which better wraps the outer surface of the outer layer pipe. A sealing gasket can be pasted in the semicircular hole, which can effectively prevent water leakage.

[0045] Referring to Figure 5 , the refrigeration box body is internally provided with a plurality of cooling coils 40 arranged in a linear type. Two collecting pipes 41 are fixedly arranged on the outer wall of the lower box 35. The two ends of the cooling coils 40 respectively penetrate out of the lower box 35 and are correspondingly connected to the collecting pipes 41. One of the collecting pipes 41 is provided with a refrigerant inlet valve 42, and the other collecting pipe 41 is connected with a refrigerant outlet valve 43. A refrigeration device 44 and a circulating pump 45 are installed on the outer wall of the lower box 35. The refrigeration device 44 and the circulating pump 45 are connected by a pipeline. The circulating pump 45 is provided with a water outlet pipe 46. A water cavity 47 is fixedly arranged on the outer wall of the upper box 34. A butt joint pipe 48 is fixedly arranged on the water cavity 47. The butt joint pipe 48 and the water outlet pipe 46 are connected by a pipeline connector. The water cavity 47 is connected with a water spraying pipe I 49 by a pipeline. The water spraying pipe I 49 is uniformly provided with water spraying heads I 50 at the bottom end.

[0046] This embodiment stores a certain amount of water in the refrigeration box body. The water does not fill out of the lower box 35. The water in the refrigeration box body is extracted by the circulating pump 45. In the process of extraction, the water is extracted into the refrigeration device 44 for refrigeration. Then, the refrigerated water is sprayed out along the water outlet pipe 46, the butt joint pipe 48, the water cavity 47 and the water spraying pipe I 49, and sprayed on the outer layer pipe in the refrigeration box body. The outer layer pipe is cooled by cold water. Finally, the water enters the refrigeration box body again.

[0047] The refrigerant inlet valve is opened to transport cooling liquid to the inside of the cooling coil 40, and finally the water in the refrigeration box is refrigerated, and the refrigerated water is transported to the outer pipe again by the circulating pump 45, and the water is also circulated and refrigerated, thereby greatly saving water resources. The cooling coil 40 of this embodiment has only one, which corresponds to the first type of pipe type efficiency enhancer.

[0048] Referring to Figure 6 , one side of the water spraying pipe one 49 is provided with a water spraying pipe two 51, the water spraying pipe one 49 and the water spraying pipe two 51 are connected through the communication pipe four 52, and the bottom end of the water spraying pipe two 51 is uniformly arranged with a water spraying head two. The cooling coil 40 of this embodiment has two, which corresponds to the second type of pipe type efficiency enhancer. At this time, the refrigeration box has four semicircular holes, which can form two whole circular holes corresponding to the passage of two outer pipes.

[0049] Referring to Figure 7 , one side of the water spraying pipe one 49 and the water spraying pipe two 51 is provided with a water spraying pipe three 53, the bottom end of the water spraying pipe three 53 is uniformly arranged with a water spraying head three, and the water spraying pipe three 53 and the water spraying pipe one 49 and the water spraying pipe two 51 are connected through the communication pipe five 54. The cooling coil 40 of this embodiment has four, which corresponds to the third type of pipe type efficiency enhancer. At this time, the refrigeration box has eight semicircular holes, which can form four whole circular holes corresponding to the passage of four outer pipes.

[0050] The technical solution uses the mode of returning gas and supplying liquid, and the returning gas and the supplying liquid independently operate respectively. The pipe type efficiency enhancer utilizes the low-temperature steam of the refrigerant from the evaporator, the liquid low-temperature refrigerant that is not evaporated, and the liquid refrigerant supplied by the refrigeration system to exchange heat, thereby reducing the temperature of the liquid refrigerant supplied, improving the efficiency of the refrigeration system, increasing the temperature of the returned gas, eliminating liquid hammer, and improving the double-layer pipe type heat exchange device of the discharge volume and the heat discharge volume of the compressor.

[0051] The pipe body one 1 is composed of a double-layer pipe. The inner layer pipe is made of high-thermal-conductivity metal. The heat exchange of the inner and outer layers of fluid is realized by countercurrent flow of the inner and outer layers of fluid. The inner layer passes the refrigerant steam from the evaporator back to the compressor set and the refrigerant that is not evaporated. The outer layer passes the liquid refrigerant cooled by the condenser to the evaporator. The liquid supply head end pipe one can heat the refrigerant to enter the refrigeration channel one for heat exchange.

[0052] The ideal refrigeration system is that the supply liquid temperature is the same as the warehouse temperature, and the suction temperature is the same as the compressor back gas superheat, and the refrigeration system in this state; the latent heat absorbed by the evaporation of liquid refrigerant can be 100% used to cool the cold storage, the compressor discharge heat capacity is large, the discharge heat efficiency is high, and the exhaust temperature is not too high, and the liquid strike situation does not occur, and the scheme utilizes the supercooled vapor and supercooled liquid refrigerant evaporation latent heat from the evaporator to exchange heat with the refrigeration system supply liquid, so that the refrigeration supply liquid is cooled to near the warehouse temperature, and the exhaust temperature is close to the compressor back gas superheat.

[0053] The technical scheme can greatly improve the efficiency of the refrigeration system, reduce energy consumption, reduce use cost, improve the reliability of the equipment, and prove by experiments that the temperature of the fresh-keeping warehouse can be directly lowered to-15 DEG C from-5 DEG C, the temperature of the-18 DEG C warehouse can be lowered to-28 DEG C, the temperature of the quick-freezing warehouse can be lowered to-45 DEG C, and the suction pressure of the quick-freezing warehouse reaches 0 bar at-30 DEG C in the normal state, and then works under negative pressure, and the suction pressure of the quick-freezing warehouse with the pipe-type efficiency enhancer reaches 0 bar at-45 DEG C, which greatly improves the efficiency of the quick-freezing warehouse.

[0054] The pipe-type efficiency enhancer of the application penetrates the refrigeration box, and the outer pipe penetrates the box at both ends, and the supply liquid head end pipe 9, the communication pipe 10, the supply liquid outlet pipe 8, the supply liquid head end pipe 2, the communication pipe 2, the supply liquid outlet pipe 2, the supply liquid head end pipe 3, the supply liquid outlet pipe 3 and the communication pipe 3 are designed outside the refrigeration box, but ninety percent of the area of the outer pipe is inside the refrigeration box for refrigeration.

[0055] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A tubular amplifier, characterized in that: The invention comprises a tube body (1), wherein the tube body (1) comprises an inner layer tube (5) and an outer layer tube (6), wherein the inner layer tube (5) is arranged in the outer layer tube (6), and a refrigeration channel (7) is formed between the inner layer tube (5) and the outer layer tube (6), and a liquid supply outlet tube (8) and a liquid supply head tube (9) are respectively provided at both ends of the outer layer tube (6), one end of the inner layer tube (5) is connected to the return air pipe (3) on the external evaporator (2), and the liquid supply outlet tube (8) is connected to the liquid supply pipe (4) on the external evaporator (2) through a matching tube, and a connecting tube (10) is further provided between the outer layer tube (6) and the liquid supply outlet tube (8).

2. The tubular amplifier according to claim 1, characterized in that: The inner layer pipe 1 (5) is made of a metal with high thermal conductivity. A pipe body 2 (11) is provided on one side of the pipe body 1 (1). The pipe body 2 (11) includes an inner layer pipe 2 (12) and an outer layer pipe 2 (13). A cooling channel 2 (14) is formed between the inner layer pipe 2 (12) and the outer layer pipe 2 (13). A liquid outlet pipe 2 (17) is provided on the pipe body 1 (1) and the pipe body 2 (11). A liquid outlet pipe 2 (17) is provided on the outer layer pipe 2 (13) and the outer layer pipe 1 (6). Liquid head end pipe 2 (19), one end of the inner layer pipe 1 (5) and the inner layer pipe 2 (12) are commonly connected to a fixed inlet pipe (20), the other end of the inner layer pipe 1 (5) and the inner layer pipe 2 (12) are commonly connected to a fixed outlet pipe (18) docking the return air pipe (3), the liquid supply outlet end pipe 2 (17) is connected to the liquid supply pipe (4), and a connecting pipe 2 (21) is further provided between the outer layer pipe 1 (6), the outer layer pipe 2 (13) and the liquid supply outlet end pipe 2 (17).

3. The tubular amplifier according to claim 2, characterized in that: A tube body 3 (22) is provided on one side of the tube body 1 (1) and the tube body 2 (11), and the tube body 3 (22) includes an inner layer pipe 3 (23) and an outer layer pipe 3 (24), a cooling channel 3 (25) is formed between the inner layer pipe 3 (23) and the outer layer pipe 3 (24), and a liquid supply outlet pipe 3 (28) and a liquid supply head pipe 3 (29) are provided on the outer layer pipe 3 (24), the outer layer pipe 2 (13) and the outer layer pipe 1 (6), and the inner layer pipe 1 (5), the inner layer pipe 2 ( 12) and one end of the inner layer pipe three (23) are commonly connected to a secondary fixed inlet pipe (30), the other ends of the inner layer pipe one (5), the inner layer pipe two (12) and the inner layer pipe three (23) are commonly connected to a secondary fixed outlet pipe (55) docking the return air pipe (3), and a connecting pipe three (31) is further provided between the outer layer pipe one (6), the outer layer pipe two (13), the outer layer pipe three (24) and the liquid supply outlet pipe three (28), and the liquid supply outlet pipe three (28) is connected to the liquid supply pipe (4).

4. The tubular amplifier according to claim 3, characterized in that: The liquid supply pipe (4) is provided with a plurality of expansion valves (32) and a drying filter (33).

5. A refrigeration device, characterized in that: The invention comprises a refrigeration box, an evaporator and a tubular amplifier according to any one of claims 1 to 4, wherein the refrigeration box is installed at the bottom end of the evaporator (2), the tubular amplifier passes through the refrigeration box, and the refrigeration box is divided into an upper box (34) and a lower box (35), and corresponding plates (36) are fixed on the upper box (34) and the lower box (35), respectively, and the corresponding plates (36) are fixed by screws, and semicircular holes (37) for the tubular amplifier to pass through are respectively opened on the upper box (34) and the lower box (35), and the two semicircular holes (37) are merged into a whole circular hole.

6. A refrigeration device according to claim 5, characterized in that: A plurality of sleeves (38) are fixedly provided at the top of the upper box (34), a T-shaped fixing rod (39) is inserted into the sleeve (38), the head end of the fixing rod (39) is fixed to the bottom end of the shell of the evaporator (2) with a screw, and a bolt passing through the fixing rod (39) is passed through the sleeve (38).

7. A refrigeration device according to claim 6, characterized in that: A plurality of cooling coils (40) arranged in a straight line are provided inside the refrigeration box body, and two collecting pipes (41) are fixedly provided on the outer wall of the lower box (35). Both ends of the cooling coils (40) respectively pass through the lower box (35) and are correspondingly connected to the collecting pipes (41). A refrigerant inlet valve (42) is provided on one of the collecting pipes (41), and a refrigerant discharge valve (43) is connected to the other collecting pipe (41).

8. The refrigeration equipment according to claim 7, characterized in that: A refrigerator (44) and a circulation pump (45) are installed on the outer wall of the lower box (35), and the refrigerator (44) and the circulation pump (45) are connected by a pipeline. The circulation pump (45) is provided with a water outlet pipe (46). A water cavity (47) is fixedly provided on the outer wall of the upper box (34), and a butt joint pipe (48) is fixedly provided on the water cavity (47). The butt joint pipe (48) and the water outlet pipe (46) are connected by a pipeline connector. A water spray pipe (49) is connected to the water cavity (47) through a pipeline, and a water spray head (50) is evenly arranged at the bottom end of the water spray pipe (49).

9. The refrigeration equipment according to claim 8, characterized in that: A second water spray pipe (51) is provided on one side of the first water spray pipe (49), and the first water spray pipe (49) and the second water spray pipe (51) are connected via a fourth connecting pipe (52), and a second water spray head is evenly arranged at the bottom end of the second water spray pipe (51).

10. The refrigeration equipment according to claim 9, characterized in that: A water spray pipe three (53) is provided on one side of the water spray pipe one (49) and the water spray pipe two (51), and three water spray heads are evenly arranged at the bottom end of the water spray pipe three (53). The water spray pipe three (53) is connected to the corresponding water spray pipe one (49) and the water spray pipe two (51) through a connecting pipe five (54).

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