Spiral spring type evaporator

Abstract

A spiral spring type evaporator comprises an outer cylinder and an inner cylinder arranged in the outer cylinder, a spiral spring type flow channel piece is arranged between the outer cylinder and the inner cylinder so that a spiral flow channel can be formed among the outer cylinder, the inner cylinder and the flow channel piece, a refrigerant inlet communicated with the flow channel is formed in one end of the inner cylinder, and a refrigerant outlet communicated with the flow channel is formed in the other end of the inner cylinder. A refrigerant outlet communicated with the runner is formed in the other end of the inner cylinder; the inner cylinder is sleeved with the flow channel piece, and the flow channel piece is fixed to the outer wall of the inner cylinder. According to the evaporator, the spiral spring type flow channel piece is arranged between the outer barrel and the inner barrel, the flow channel piece is welded and fixed on the outer wall of the inner barrel, the outer side face of the flow channel piece abuts against the inner wall of the outer barrel, and the flow channel piece plays a supporting role, so that the structural rigidity of the evaporator is better; when the evaporator works, the inner barrel and the outer barrel cannot deform due to vibration, the spiral flow channel is formed among the outer barrel, the inner barrel and the flow channel piece, the spiral flow channel prolongs the residence time of refrigerants, the contact area of the refrigerants and the barrel wall is increased, and the evaporation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to snow melting machine technical field, especially a kind of evaporator of spiral spring type. BACKGROUND

[0002] Chinese patent document No. CN215176200U was published on December 14, 2021, which discloses a shell and tube evaporator for snow melting machine. The shell and tube evaporator comprises an outer cylinder, an inner cylinder is installed in the outer cylinder, a spiral flow channel is provided between the outer wall of the inner cylinder and the inner wall of the outer cylinder, a refrigerant inlet is provided at one end of the spiral flow channel, and a refrigerant outlet is provided at the other end. The inner surface of the inner cylinder has a spiral groove, the cross section of the spiral groove is arc-shaped, the spiral groove protrudes inward, and the outer surface of the inner cylinder is welded with the surface of the outer cylinder to form a closed spiral flow channel. The evaporator with the above structure has poor structural rigidity, and the inner cylinder and the outer cylinder are easily deformed due to vibration during operation.

[0003] Therefore, it is necessary to make further improvements. INVENTION CONTENTS

[0004] The utility model aims at providing a spiral spring type evaporator with simple structure, good rigidity, stability, reliability, high heat exchange efficiency and strong practicability to overcome the shortcomings of the prior art.

[0005] A spiral spring type evaporator designed for this purpose comprises an outer cylinder and an inner cylinder arranged in the outer cylinder. The feature is that a flow channel member in the form of a spiral spring is arranged between the outer cylinder and the inner cylinder to form a spiral flow channel between the outer cylinder, the inner cylinder and the flow channel member. A refrigerant inlet communicating with the flow channel is provided at one end of the inner cylinder, and a refrigerant outlet communicating with the flow channel is provided at the other end of the inner cylinder.

[0006] The flow channel member is sleeved on the inner cylinder and fixed to the outer wall of the inner cylinder.

[0007] A first sealing plate is arranged at one end of the inner cylinder, a second sealing plate is arranged at the other end of the inner cylinder, one end of the flow channel member abuts against the first sealing plate, and the other end of the flow channel member abuts against the second sealing plate.

[0008] The first sealing plate closes one end of the flow channel, and the second sealing plate closes the other end of the flow channel.

[0009] The refrigerant inlet is located at one end of the flow channel, and the refrigerant outlet is located at the other end of the flow channel.

[0010] The outer side surface of the flow channel member abuts against the inner wall of the outer cylinder.

[0011] A refrigerant inlet pipe is connected to the refrigerant inlet, a refrigerant outlet pipe is arranged on the refrigerant outlet, and the refrigerant inlet pipe and the refrigerant outlet pipe are respectively located in the inner cavity of the inner cylinder.

[0012] The outer cylinder is provided with a third sealing plate at one end, and a temperature sensor for detecting the temperature of the material is arranged on the third sealing plate.

[0013] The third sealing plate seals one end opening of the inner cavity, and a mounting hole for mounting an ice blade is arranged on the third sealing plate.

[0014] The flow channel member is welded and fixed to the outer wall of the inner cylinder.

[0015] The evaporator of the utility model is provided with the flow channel member in the shape of a spiral spring between the outer cylinder and the inner cylinder, the flow channel member is welded and fixed to the outer wall of the inner cylinder, the outer side surface of the flow channel member abuts against the inner wall of the outer cylinder, the flow channel member plays a supporting role, the structural rigidity of the evaporator is better, the inner cylinder and the outer cylinder will not be deformed due to vibration when the evaporator works, the flow channel in the shape of a spiral is formed between the outer cylinder, the inner cylinder and the flow channel member, the spiral flow channel prolongs the residence time of the refrigerant, increases the contact area with the cylinder wall, and improves the evaporation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a sectional view of the evaporator in an embodiment of the utility model.

[0017] Figure 2 It is a partial structure schematic view of the evaporator in an embodiment of the utility model.

[0018] Figure 3 It is an overall structure schematic view of the flow channel member in an embodiment of the utility model.

[0019] Figure 4 It is an overall structure schematic view of the evaporator in an embodiment of the utility model.

[0020] Figure 5 It is an overall structure schematic view of the evaporator in another orientation in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The utility model will be further described in combination with the drawings and embodiments.

[0022] Referring to Figures 1-5 The spiral spring type evaporator comprises an outer cylinder 1 and an inner cylinder 2 arranged in the outer cylinder 1, a flow channel member 3 in the shape of a spiral spring is arranged between the outer cylinder 1 and the inner cylinder 2, so that a flow channel 4 in the shape of a spiral is formed between the outer cylinder 1, the inner cylinder 2 and the flow channel member 3, a refrigerant inlet 5 communicating with the flow channel 4 is arranged at one end of the inner cylinder 2, a refrigerant outlet 6 communicating with the flow channel 4 is arranged at the other end of the inner cylinder 2, liquid refrigerant enters the flow channel 4 through the refrigerant inlet 5, changes into gas after absorbing the heat of the liquid on the outer surface of the outer cylinder 1, and then flows out from the refrigerant outlet 6, the outer cylinder 1 contacts with the liquid, transmits the cold energy to the liquid, so that the liquid is cooled, crystallized and finally forms snow.

[0023] The flow channel piece 3 is arranged on the inner cylinder 2 and is welded and fixed on the outer wall of the inner cylinder 2. The flow channel piece 3 has elasticity and can be elastically deformed. Different inner cylinders 2 have a certain error in length during manufacturing. The elasticity of the flow channel piece 3 can adapt to inner cylinders 2 of different lengths. The flow channel piece 3 cannot be elastically deformed after being welded.

[0024] One end of the inner cylinder 2 is provided with a first sealing plate 7, and the other end of the inner cylinder 2 is provided with a second sealing plate 8. One end of the flow channel piece 3 abuts against the first sealing plate 7, and the other end of the flow channel piece 3 abuts against the second sealing plate 8, that is, the flow channel piece 3 is arranged between the first sealing plate 7 and the second sealing plate 8.

[0025] The first sealing plate 7 seals one end of the flow channel 4, and the second sealing plate 8 seals the other end of the flow channel 4.

[0026] The refrigerant inlet 5 is located at one end of the flow channel 4, and the refrigerant outlet 6 is located at the other end of the flow channel 4.

[0027] The outer side of the flow channel piece 3 abuts against the inner wall of the outer cylinder 1, which can support the outer cylinder 1, and the flow channel piece 3 can improve the structural rigidity of the inner cylinder 2.

[0028] The refrigerant inlet pipe 9 is connected to the refrigerant inlet 5, and the refrigerant outlet pipe 10 is arranged on the refrigerant outlet 6. The refrigerant inlet pipe 9 and the refrigerant outlet pipe 10 are respectively located on the inner cavity 14 of the inner cylinder 2, so that the space of the inner cavity 14 can be fully utilized. The refrigerant inlet pipe 9 is connected to a condenser, and the refrigerant outlet pipe 10 is connected to a compressor. The evaporator is applied to a snow melting machine. The refrigerant inlet pipe 9 is a thin pipe, and the refrigerant outlet pipe 10 is a thick pipe.

[0029] One end of the outer cylinder 1 is provided with a third sealing plate 11. The third sealing plate 11 is provided with a temperature sensor 12 for detecting the temperature of the material (snow melting). The temperature sensor 12 is electrically connected to a controller of the snow melting machine. When the temperature sensor 12 detects that the temperature of the material reaches a set temperature, the controller controls the refrigeration system to stop running.

[0030] The third sealing plate 11 seals one end opening of the inner cavity 14. The third sealing plate 11 is provided with a mounting hole 13 for mounting an ice knife. The rotating shaft of the ice knife is mounted on the mounting hole 13. The ice knife is located outside the outer cylinder 1. When the ice knife rotates, it pushes the snow melting outside the outer cylinder 1. The ice knife is a prior art, which will not be described in detail here.

[0031] The above is the preferred scheme of the utility model, and the basic principle, main features and advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model. The utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A spiral spring type evaporator comprising an outer cylinder (1) and an inner cylinder (2) disposed within the outer cylinder (1), characterized by: A flow channel piece (3) in the shape of a spiral spring is arranged between the outer cylinder (1) and the inner cylinder (2) to form a spiral flow channel (4) among the outer cylinder (1), the inner cylinder (2) and the flow channel piece (3), and the inner cylinder (2) is provided with a refrigerant inlet (5) at one end to communicate with the flow channel (4) and is provided with a refrigerant outlet (6) at the other end to communicate with the flow channel (4).

2. The evaporator of claim 1, wherein: The flow channel piece (3) is sleeved on the inner cylinder (2) and is fixed on the outer wall of the inner cylinder (2).

3. The evaporator of claim 2, wherein: The inner cylinder (2) is provided with a first sealing plate (7) at one end and a second sealing plate (8) at the other end, and one end of the flow channel piece (3) abuts against the first sealing plate (7) and the other end of the flow channel piece (3) abuts against the second sealing plate (8).

4. The evaporator of claim 3, wherein: The first sealing plate (7) seals one end of the flow channel (4) and the second sealing plate (8) seals the other end of the flow channel (4).

5. The evaporator of claim 3, wherein: The refrigerant inlet (5) is located at one end of the flow channel (4) and the refrigerant outlet (6) is located at the other end of the flow channel (4).

6. The evaporator of claim 1, wherein: The outer side of the flow channel piece (3) abuts against the inner wall of the outer cylinder (1).

7. The evaporator of claim 1, wherein: The refrigerant inlet (5) is connected with a refrigerant inlet pipe (9) and the refrigerant outlet (6) is provided with a refrigerant outlet pipe (10), and the refrigerant inlet pipe (9) and the refrigerant outlet pipe (10) are respectively located on the inner cavity (14) of the inner cylinder (2).

8. The evaporator of claim 7, wherein: The outer cylinder (1) is provided with a third sealing plate (11) at one end, and the third sealing plate (11) is provided with a temperature sensor (12) for detecting the temperature of the material.

9. The evaporator of claim 8, wherein: The third sealing plate (11) seals one end opening of the inner cavity (14), and the third sealing plate (11) is provided with a mounting hole (13) for mounting an ice knife.

10. The evaporator of claim 2, wherein: The flow channel piece (3) is welded and fixed on the outer wall of the inner cylinder (2).

Images