An evaporator used in refrigeration equipment

Abstract

An evaporator used on a refrigeration device includes an evaporator body, the evaporator body is composed of mounting plates on opposite sides and a connecting plate connecting the two mounting plates, an air inlet plate with an air inlet is arranged above the evaporator body, and an air outlet plate with an air outlet is arranged below the evaporator body, the mounting plate, the connecting plate, the air inlet plate, and the air outlet plate form a box, the mounting plate is also provided with a through hole for the heat dissipation coil to pass through the bending part, and sealing strips are laid on the inside and outside of the through hole. The present invention has many advantages such as simple structure, low cost, convenient installation and disassembly, high overall strength, good treatment effect, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of evaporators, and in particular to an evaporator used in refrigeration equipment. Background Art

[0002] The evaporator is a heat exchanger. High-pressure liquid refrigerant enters the evaporator through an expansion valve. Due to the atomization effect of the expansion valve, the liquid refrigerant becomes mist. The mist refrigerant is converted into gas under low pressure conditions and absorbs heat during the conversion process. Therefore, the evaporator is cool at this time. After the wind passes through, it becomes cool wind, achieving the purpose of refrigeration. The existing evaporator is generally composed of a heat dissipation tube, fins and a connecting tube for connecting the heat dissipation tube. The structure is relatively complex, so the cost is relatively high. In addition, the heat dissipation tubes are arranged in parallel, and the heat dissipation tubes are independent of each other and are connected by welding of connecting tubes, so that the overall strength is not high and is easy to damage. For this reason, an evaporator used in refrigeration equipment is designed to overcome the above problems, and its refrigeration effect is better than that of the existing evaporator. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the object of the present invention is to provide an evaporator for use in refrigeration equipment with simple structure, convenient installation and disassembly, low cost, high overall strength, long service life and good refrigeration effect.

[0004] The present invention is implemented through the following technical scheme: an evaporator used on a refrigeration device, which includes an evaporator body, in which a heat dissipation coil is installed, the evaporator body is composed of mounting plates on opposite sides and a connecting plate connecting the two mounting plates, an air inlet plate with an air inlet is arranged above the evaporator body, and an air outlet plate with an air outlet is arranged below the evaporator body, the mounting plate, the connecting plate, the air inlet plate, and the air outlet plate form a sealed box, the mounting plate is also provided with a through hole for allowing the heat dissipation coil to pass through the bend, and sealing strips are laid on the inside and outside of the through hole.

[0005] Preferably, one end of the heat dissipation coil is a water inlet, and the other end is a water outlet, and both ends are respectively mounted in through holes opened on the mounting plate, and coolant flows inside the coil. The heat dissipation coil is composed of a plurality of coils that are arranged in parallel and curved vertically, and two adjacent heat dissipation coils are arranged crosswise to form a cross air duct between the two heat dissipation coils. A plurality of air induction plates are arranged below the heat dissipation coil on the side close to the air outlet, and wind blocking plates inclined downward are respectively fixed on both side walls of the connecting plate, so that the hot air can fully contact each coil internally to absorb heat through the wind blocking plates and the air induction plates.

[0006] Preferably: the air outlet is located in the middle of the air outlet plate, and is divided into multiple air outlets by partitions. The air outlets at both ends of the air outlet plate are respectively provided with first curved wind shields in an eight-shaped shape on both sides, and second curved wind shields are provided at the opposite side corners of the first curved wind shield. The hot air originally flowing downward is refluxed into the main body through the first curved wind shield and the second curved wind shield at the air outlet for sufficient cooling.

[0007] Preferably, the mounting plate is composed of an upper mounting plate, a lower mounting plate and a plurality of mounting splicing plates in the middle, which are connected and fixed to each other by connecting parts, and a plurality of through holes for placing coils are opened at the connection, and sealing strips are arranged around the through holes and on both sides inside and outside the splicing to prevent heat from escaping.

[0008] Preferably, the heat dissipation coil is formed by bending a complete stainless steel tube, and the stainless steel is made of low-carbon nickel-containing stainless steel.

[0009] Preferably, the air induction plate is an arc-shaped structure, and its concave part is welded under the heat dissipation coil to form a U-shaped air induction channel extending to both sides of the heat dissipation coil. The U-shaped channel allows hot air to circulate in the entire body and contact all the heat dissipation coils in the body to absorb heat.

[0010] Preferably, the air induction plate is a whole piece of stainless steel plate, which is welded to the plate walls of the connecting plates on both sides below the heat dissipation coil, and is provided with a plurality of uniform air permeable holes, so that the hot air in the area can fully contact the heat dissipation coil in the area to absorb heat.

[0011] Preferably, the connecting piece includes a connecting buckle, a connecting ring, a connecting block, and a magnet.

[0012] The beneficial effects of the present invention are as follows:

[0013] The evaporator designed by the present invention is used in a refrigeration device. The evaporator is changed from an open type to a closed type, and an air inlet and an air outlet are respectively opened on opposite sides of the evaporator. Multiple rows of cross-arranged heat dissipation coils are arranged inside the evaporator, and a first arc-shaped wind shield is arranged at the air outlet inside the evaporator, a second arc-shaped wind shield is arranged at the corner, and an air induction plate is arranged at the bottom of the heat dissipation coil, so that the hot air entering from the air inlet contacts the cross-arranged heat dissipation coils for many times under the action of the air induction plate, the first arc-shaped wind shield and the second arc-shaped wind shield before being discharged from the air outlet. Compared with the existing evaporator, the refrigeration effect is better, and the heat dissipation coil is formed by bending a complete stainless steel pipe, and the coil itself has higher strength and longer service life. The present invention has the advantages of simple structure, convenient installation and disassembly, low cost, high overall strength, long service life, good refrigeration effect, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram (top view) of the present invention.

[0015] Figure 2 for Figure 1 AA section view.

[0016] Figure 3 It is a side view of the present invention.

[0017] Figure 4 Another structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to more clearly understand the objectives, technical solutions and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] In the description of the present invention, it is necessary to understand that the orientation or position relationship indicated by the terms such as "up", "down", "left", "right", "inside", "outside", "horizontal" and "vertical" is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or original referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] The present invention will be described in detail below with reference to the accompanying drawings: Figure 1 As shown, an evaporator used in a refrigeration device includes an evaporator body 1, wherein the evaporator body 1 is composed of mounting plates 2 on opposite sides and a connecting plate 3 connecting the two mounting plates 2, an air inlet plate 5 with an air inlet 4 is arranged above the evaporator body 1, and an air outlet plate 7 with an air outlet 6 is arranged below the evaporator body 1. The mounting plate 2, the connecting plate 3, the air inlet plate 5, and the air outlet plate 7 form a box body, and the mounting plate 2 is also provided with a through hole 9 for allowing the heat dissipation coil 8 to pass through the bending part, and sealing strips 10 are laid on the inner and outer sides of the through hole 9.

[0021] One end of the heat dissipation coil 8 is a water inlet 11, and the other end is a water outlet 12. Both ends are respectively mounted in the through holes 9 opened on the mounting plate 2, and coolant flows inside the coil. The heat dissipation coil 8 is composed of a plurality of coils 13 arranged in parallel and curved up and down. Two adjacent coils 13 are cross-arranged to form a cross air duct 23 between the two coils 13. An arc-shaped air induction plate 14 is arranged below the pipe on the side close to the air outlet 6, and wind blocking plates 15 inclined downward are fixed on the two side walls of the connecting plate 3. The wind blocking plates 15 and the air induction plates 14 allow the hot air to fully contact each coil 13 inside to absorb heat, and the heat dissipation coil 8 is suitable for use in equipment that requires low temperature for a long time.

[0022] like Figure 2As shown, the air outlet 6 is located in the middle of the air outlet plate 7, and is divided into multiple air outlets 6 by partitions 16. The air outlet plate 7 is provided with first curved wind shields 17 in an eight-shaped shape on both sides of the air outlet 6 at both ends, and second curved wind shields 18 are provided at the opposite side corners of the first curved wind shield 17. The hot air originally flowing downward is refluxed into the main body through the first curved wind shield 17 and the second curved wind shield 18 at the air outlet 6 for sufficient cooling.

[0023] like Figure 4 As shown, the draft plate can also be configured as a stainless steel plate 24 with multiple evenly arranged air holes arranged under the pipe. This design can achieve full reaction of hot air in this area, because the hot air can fully circulate in this area, and the coil in this area will fully react. Of course, similar plates that play a draft role all fall within the technical scope of the present invention, and there may be multiple forms. The main purpose is to allow the condensate flushed by the coil to fully absorb the heat and take away the heat. The space at the bottom of the stainless steel draft plate should be larger than the space above. Because there is also an arc-shaped wind shield at the bottom air outlet, the air circulation in the bottom space will be more complicated, so the space at the bottom near the air outlet should be larger than any space above.

[0024] An evaporator designed by the present invention for use in a refrigeration device removes the fin structure in the existing evaporator plate, greatly reducing the production cost, and its structure is also simpler. The evaporator is changed from an open type to a closed type, and an air inlet and an air outlet are respectively provided on opposite sides of the evaporator. A plurality of rows of cross-arranged heat dissipation coils are arranged inside, and a first arc-shaped wind shield is provided at the air outlet of the evaporator, a second arc-shaped wind shield is provided at the inner corner, and an air induced draft plate is provided at the bottom of the heat dissipation coil, so that the hot air entering from the air inlet is in contact with the cross-arranged heat dissipation coils for multiple times under the action of the air induced draft plate, the first arc-shaped wind shield and the second arc-shaped wind shield before being discharged from the air outlet. Compared with the existing evaporator, the refrigeration effect is better.

[0025] The present invention is provided with a plurality of air inlets at the air outlet plate, so that the hot air entering from the air inlets can be distributed more evenly, thereby better contacting with the heat dissipation coil for cooling.

[0026] like Figure 3 As shown, the mounting plate 2 is composed of an upper mounting plate 19, a lower mounting plate 20 and a plurality of mounting splicing plates 21 in the middle, which are connected and fixed to each other by connecting pieces 22, and a plurality of through holes 9 for placing coils are opened at the connection, and sealing strips 10 are arranged around the through holes 9 and on both sides of the splicing to prevent the heat from escaping. The connecting piece 22 includes connecting buckles, connecting rings, connecting blocks, magnetic suction and other devices for fixing the connection.

[0027] The mounting plate designed in the present invention is an assembled structure, which makes the installation and disassembly of the present invention more convenient. The sealing strips arranged at the connection make the overall airtightness of the present invention better and prevent heat from escaping from the connection.

[0028] The heat dissipation coil 8 is formed by bending a complete stainless steel tube. The stainless steel is made of low-carbon nickel-containing stainless steel, which has a better cooling effect. In addition, each row of heat dissipation coils in the present invention is formed by bending a complete stainless steel tube. Compared with the existing heat dissipation tubes connected by welding with connecting tubes, the overall strength is higher and it is not easy to be damaged. The service life of the heat dissipation coil can be greatly improved, thereby improving the service life of the overall equipment.

[0029] It is worth noting that the appended Figures 1 to 3 , which is merely a schematic diagram of the present invention and does not refer to the specific structure of the present invention. The water outlet and water inlet of the heat dissipation coil of the present invention can be arranged on the same side or on the opposite side according to actual conditions, and the heat dissipation coil of the present invention can be arranged in two layers, three layers or more than three layers in a cross-arrangement, and the shape (the number of bends is not limited) and the number of the heat dissipation coil can be adjusted accordingly according to actual conditions.

[0030] The present invention overcomes the problems brought by conventional evaporators with fins, because the evaporator using fins needs to be installed on the coil piece by piece during installation, so the coil needs to be connected through a connecting elbow. Such a connection method of the connecting head threaded buckle or welding will reduce its sealing due to long-term use, causing the internal coolant to flow out, which reduces its service life. In addition, the fins are installed on the coil, which invisibly increases the thickness of the tube wall, and the entire hot air can only exchange heat in the fixed fins, so that the air cannot be fully circulated and cooled. Through the staggered arrangement and wind shield, arc wind shield, and air induction plate of the present invention, the wind can have enough time to circulate inside to fully allow the hot air to absorb and take away heat from the coil. In addition, because the coil in the present invention is formed by bending a pipe, it is suitable for refrigerators, freezers, and refrigeration equipment of various lengths, such as long-distance freezers for buying and selling frozen foods in supermarkets, high cabinets for buying and selling spicy hot pot and cakes, etc. The evaporator can be arranged horizontally and vertically, and the detachable splicing method can make the assembly and replacement more labor-saving and time-saving, and the cost is also low.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. An evaporator used in a refrigeration device, comprising an evaporator body, in which a heat dissipation coil is installed, characterized in that: The evaporator body is composed of mounting plates on opposite sides and a connecting plate connecting the two mounting plates, an air inlet plate with an air inlet is arranged above the evaporator body, and an air outlet plate with an air outlet is arranged below the evaporator body, the mounting plate, the connecting plate, the air inlet plate, and the air outlet plate form a sealed box, and a through hole for the heat dissipation coil to pass through the bending part is also provided on the mounting plate, and sealing strips are laid on the inner and outer sides of the through hole; the end of one end of the heat dissipation coil is a water inlet, and the other end is a water outlet, and the two ends are respectively mounted in the through holes provided on the mounting plate, and a coolant flows inside the coil, and the heat dissipation coil is composed of a plurality of coils arranged in parallel and curved up and down, and the two adjacent heat dissipation coils are arranged crosswise, so that a cross air duct is formed between the two heat dissipation coils, and a plurality of air induction plates are arranged below the heat dissipation coil on the side close to the air outlet, and wind blocking plates inclined downward are respectively fixed on the two side walls of the connecting plate, and the hot air is fully contacted with each coil to absorb heat inside through the wind blocking plate and the air induction plate.

2. The evaporator used in the refrigeration equipment according to claim 1, characterized in that: The air outlet is located in the middle of the air outlet plate and is divided into multiple air outlets by partitions. The air outlets at both ends of the air outlet plate are respectively provided with first curved wind shields in an eight-shaped shape on both sides, and second curved wind shields are provided at the corners opposite to the first curved wind shield. The hot air originally flowing downward is refluxed into the main body through the first curved wind shield and the second curved wind shield at the air outlet for sufficient cooling.

3. The evaporator used in the refrigeration equipment according to claim 1, characterized in that: The mounting plate is composed of an upper mounting plate, a lower mounting plate and a plurality of mounting splicing plates in the middle, which are connected and fixed to each other by connecting pieces, and a plurality of through holes for placing coils are opened at the connection, and sealing strips are arranged around the through holes and on both sides inside and outside the splicing to prevent heat from escaping.

4. The evaporator used in the refrigeration equipment according to claim 1, characterized in that: The heat dissipation coil is formed by bending a complete stainless steel pipe, and the stainless steel is made of low-carbon nickel-containing stainless steel.

5. The evaporator used in the refrigeration equipment according to claim 1, characterized in that: The air induction plate is an arc-shaped structure, and its concave part is welded under the heat dissipation coil to form a U-shaped air induction channel extending to both sides of the heat dissipation coil. The U-shaped channel allows hot air to circulate in the entire body and contact all the heat dissipation coils in the body to absorb heat.

6. The evaporator used in the refrigeration equipment according to claim 1, characterized in that: The air induction plate is a whole piece of stainless steel plate, which is welded to the plate walls of the connecting plates on both sides below the heat dissipation coil, and is provided with a plurality of uniform air permeable holes, so that the hot air in the area can fully contact the heat dissipation coil in the area to absorb heat.

7. The evaporator used in the refrigeration equipment according to claim 3, characterized in that: The connecting piece includes a connecting buckle, a connecting ring, a connecting block and a magnetic attraction.

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