Heat exchanger with defrosting device

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger with a defrosting device, which comprises a barrel, two mounting plates are fixedly connected to the inner wall of the barrel, a plurality of heat exchange tubes are mounted between the two mounting plates, and a gas collecting barrel is fixedly connected between the two mounting plates. A plurality of one-way air nozzles are connected to the outer wall of the air collecting cylinder in a penetrating mode, a left flow collecting cover and a right flow collecting cover are connected to the left side and the right side of the cylinder body through flanges correspondingly, and a through hole is formed in the outer wall of the left flow collecting cover in a penetrating mode; when the outer walls of the multiple heat exchange pipes need to be defrosted, hot air is blown into the air collection cylinder through the hot air blower and blown to the outer walls of the multiple heat exchange pipes through the multiple evenly-distributed one-way air nozzles, so that frost layers on the outer walls of the multiple heat exchange pipes can be melted through the hot air, and then the effects that the defrosting time is shortened conveniently and the defrosting efficiency is improved are achieved through the mode. The purposes that the working efficiency is improved, and defrosting is not limited to the environment temperature are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger with a defrosting device. Background Technique

[0002] A heat exchanger, also known as a heat exchanger, is a device used to transfer heat between fluids at different temperatures. Its working principle is mainly based on the principle of heat conduction, that is, two cold and hot fluids are separated by a solid partition wall, and heat is transferred from the hot fluid to the cold fluid through the partition wall, thereby realizing heat exchange. Heat exchangers play an important role in many industrial productions such as chemical industry, petroleum, power, and food. The quality of their performance directly affects the efficiency, energy consumption, and product quality of the entire production process. In order to remove the frost layer on the surface of the heat exchange tubes that affects the work due to low temperature frosting, a heat exchanger with a defrosting device is needed.

[0003] In the prior art, when defrosting the surface of the heat exchange tubes, the heat exchanger needs to stop running for a period of time, and the temperature is restored to above 0 degrees Celsius by using the heat in the surrounding environment, so as to melt the frost layer on the surface of the heat exchange tubes. Although this method is simple and economical, the defrosting time is relatively long, which affects the work efficiency, and is greatly affected by the ambient temperature. Therefore, it is necessary to propose a heat exchanger with a defrosting device to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat exchanger with a defrosting device, which has the characteristics of being convenient for reducing the defrosting duration to improve work efficiency and being not restricted by the ambient temperature during defrosting.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat exchanger with a defrosting device, including a cylinder body, two mounting plates are fixedly connected to the inner wall of the cylinder body, a plurality of heat exchange tubes are installed between the two mounting plates, a gas collecting cylinder is fixedly connected between the two mounting plates, a plurality of one-way jet nozzles are penetrated and connected to the outer wall of the gas collecting cylinder, a left collecting cover and a right collecting cover are respectively flange-connected to the left and right sides of the cylinder body, a through hole is penetrated and opened on the outer wall of the left collecting cover, a ventilation pipe is communicated with the left side of the gas collecting cylinder and extends to the inside of the through hole through the left mounting plate, and an external threaded pipe is installed at the left end of the ventilation pipe;

[0006] A horizontal plate is installed at the left end of the left collecting cover and is located above the external threaded pipe, a hot air blower is installed at the upper end of the horizontal plate, the air outlet end of the hot air blower penetrates through the horizontal plate and is fixedly connected with a hose, the other end of the hose is installed with a sealed rotary joint through a connector, and an internal threaded pipe is installed at the other end of the sealed rotary joint.

[0007] In order to prevent the leakage of the coolant inside the left collector cover, as an optimization of the heat exchanger with a defrosting device of the present utility model, an installation ring is fixedly connected to the outer wall of the ventilation pipe, and the left end of the installation ring is fixedly connected through an installation groove with an O-ring that is pressed against the left side of the inner wall of the left collector cover.

[0008] In order to facilitate the discharge of the excess gas and the melted water inside the cylinder body, as an optimization of the heat exchanger with a defrosting device of the present utility model, a discharge valve pipe penetrates and is connected to the lower end of the outer wall of the cylinder body.

[0009] In order to facilitate the connection of the coolant input pipe, the coolant output pipe, the intake pipe, and the outlet pipe respectively, as an optimization of the heat exchanger with a defrosting device of the present utility model, a first flange pipe penetrates and is connected to the outer wall of the left collector cover, a second flange pipe penetrates and is connected to the outer wall of the right collector cover, a third flange pipe penetrates and is connected to the lower side of the outer wall of the cylinder body, and a fourth flange pipe penetrates and is connected to the upper side of the outer wall of the cylinder body.

[0010] In order to facilitate the flow of the coolant from the left collector cover into the interiors of multiple heat exchange tubes and facilitate the flow of the coolant from the multiple heat exchange tubes into the interior of the right collector cover, as an optimization of the heat exchanger with a defrosting device of the present utility model, both ends of multiple said heat exchange tubes penetrate through two mounting plates respectively.

[0011] In order to facilitate the tightening of the internally threaded pipe with a wrench, as an optimization of the heat exchanger with a defrosting device of the present utility model, a hexagonal nut is fixedly connected to the outer wall of the internally threaded pipe.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The right collector cover and the left collector cover are respectively fixed to the right end and the left end of the cylinder body by means of flange connection. At this time, the externally threaded pipe will pass through the through hole, then the sealing tape is wound around the outer wall of the externally threaded pipe, and then the internally threaded pipe is tightened and fixed to the outer wall of the externally threaded pipe. At this time, the sealing tape plays the role of preventing liquid leakage, and the installation is completed. Then, the gas to be cooled can be refrigerated. When it is necessary to defrost the outer walls of multiple heat exchange tubes, the hot air blower blows hot air into the interior of the air collecting cylinder and blows it onto the outer walls of multiple heat exchange tubes through multiple uniformly distributed one-way jet nozzles. Thus, the frost layer on the outer walls of multiple heat exchange tubes can be melted by the hot air, and further, by this method, the purpose of facilitating the reduction of the defrosting duration to improve the work efficiency and being not restricted by the ambient temperature during defrosting can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall front sectional view of the present utility model;

[0015] Figure 2Connection structure diagram at the heat exchange tube of the present utility model;

[0016] Figure 3 External structure diagram of the internal thread tube and hexagonal nut of the present utility model.

[0017] In the figure: 1, cylinder body; 2, mounting plate; 3, heat exchange tube; 4, left collector cover; 5, right collector cover; 6, air collecting cylinder; 7, one-way jet nozzle; 8, ventilation pipe; 9, through hole; 10, external thread tube; 11, cross plate; 12, hot air blower; 13, hose; 14, sealed rotary joint; 15, internal thread tube; 16, mounting ring; 17, O-ring seal; 18, hexagonal nut; 19, discharge valve pipe. Specific implementation manner

[0018] Please refer to Figures 1 to 3 , a heat exchanger with a defrosting device, including a cylinder body 1, two mounting plates 2 are fixedly connected to the inner wall of the cylinder body 1, a plurality of heat exchange tubes 3 are installed between the two mounting plates 2, an air collecting cylinder 6 is fixedly connected between the two mounting plates 2, a plurality of one-way jet nozzles 7 are penetrated and connected to the outer wall of the air collecting cylinder 6, a left collector cover 4 and a right collector cover 5 are respectively flange-connected to the left and right sides of the cylinder body 1, a through hole 9 is penetrated and opened on the outer wall of the left collector cover 4, a ventilation pipe 8 communicated with the left side of the air collecting cylinder 6 and extending into the through hole 9 through the left mounting plate 2 is installed at the left end of the ventilation pipe 8, and an external thread tube 10 is installed at the left end of the ventilation pipe 8;

[0019] A cross plate 11 is installed at the left end of the left collector cover 4 above the external thread tube 10, a hot air blower 12 is installed at the upper end of the cross plate 11, the air outlet end of the hot air blower 12 penetrates through the cross plate 11 and is fixedly connected with a hose 13, the other end of the hose 13 is installed with a sealed rotary joint 14 through a connector, and an internal thread tube 15 is installed at the other end of the sealed rotary joint 14.

[0020] In this embodiment: during use, the right collector cover 5 is fixedly connected to the right end of the cylinder body 1 through two flange plates and a plurality of bolts, and then the left collector cover 4 is fixedly connected to the left end of the cylinder body 1 through two flange plates and a plurality of bolts. At this time, the ventilation pipe 8 enters the through hole 9, and the external thread tube 10 passes through the through hole 9. Then, sealing tape is wound around the outer wall of the external thread tube 10. Further, due to the setting of the sealed rotary joint 14, the internal thread tube 15 can be rotated, and the hose 13 can be kept from rotating. And because the hose 13 is flexible, the internal thread tube 15 can be tightened and fixed on the outer wall of the external thread tube 10, and the sealing tape is used to prevent liquid leakage, and the installation is completed;

[0021] When heat exchange is to be carried out, the coolant will enter the interior of the left manifold 4 through the input pipe, then enter the interiors of the multiple heat exchange tubes 3, and then flow into the interior of the right manifold 5. Subsequently, the coolant will flow out from the output pipe. At the same time, the gas to be cooled will enter the interior of the cylinder body 1 from the intake pipe, and the gas will come into contact with the multiple heat exchange tubes 3, thereby enabling the gas to be refrigerated. The refrigerated gas will be discharged from the exhaust pipe;

[0022] When it is necessary to defrost the outer walls of the multiple heat exchange tubes 3, the hot air blower 12 blows hot air into the interiors of the hose 13, the external thread pipe 10, the vent pipe 8, and the air collecting cylinder 6, and blows it onto the outer walls of the multiple heat exchange tubes 3 through the multiple uniformly distributed one-way jet nozzles 7. Thus, the frost layer on the outer walls of the multiple heat exchange tubes 3 can be melted by the hot air, and further, by this method, it is convenient to reduce the defrosting time, improve the work efficiency, and the defrosting is not restricted by the ambient temperature.

[0023] As a technical optimization scheme of the present utility model, an installation ring 16 is fixedly connected to the outer wall of the vent pipe 8, and an O-ring seal 17 that is pressed against the left side of the inner wall of the left manifold 4 is fixedly connected to the left end of the installation ring 16 through an installation groove.

[0024] In this embodiment: After the installation of the left manifold 4 is completed, at this time, the O-ring seal 17 is exactly tightly pressed against the left side of the inner wall of the left manifold 4, so that the coolant inside the left manifold 4 can be prevented from leaking through the O-ring seal 17.

[0025] As a technical optimization scheme of the present utility model, a discharge valve pipe 19 is penetrated and connected to the lower end of the outer wall of the cylinder body 1.

[0026] In this embodiment: By providing the discharge valve pipe 19, when it is opened, the excess gas and the melted water inside the cylinder body 1 can be discharged.

[0027] As a technical optimization scheme of the present utility model, a first flange pipe is penetrated and connected to the outer wall of the left manifold 4, a second flange pipe is penetrated and connected to the outer wall of the right manifold 5, a third flange pipe is penetrated and connected to the lower side of the outer wall of the cylinder body 1, and a fourth flange pipe is penetrated and connected to the upper side of the outer wall of the cylinder body 1.

[0028] In this embodiment: By providing the first flange pipe, it is convenient to connect the input pipe of the coolant. By providing the second flange pipe, it is convenient to connect the output pipe of the coolant. By providing the third flange pipe, it is convenient to connect the intake pipe. By providing the fourth flange pipe, it is convenient to connect the outlet pipe.

[0029] As a technical optimization scheme of the present utility model, both ends of the multiple heat exchange tubes 3 penetrate through two mounting plates 2 respectively.

[0030] In this embodiment: By making both ends of multiple heat exchange tubes 3 penetrate through two mounting plates 2 respectively, it is convenient for the coolant to flow from the left collector hood 4 into the interiors of the multiple heat exchange tubes 3, and it is also convenient for the coolant to flow from the multiple heat exchange tubes 3 into the interior of the right collector hood 5.

[0031] As a technical optimization scheme of the present utility model, a hexagonal nut 18 is fixedly connected to the outer wall of the internal thread tube 15.

[0032] In this embodiment: By providing the hexagonal nut 18, it is convenient to tighten the internal thread tube 15 with a wrench.

[0033] Working principle: During use, first, the right collector hood 5 is fixedly connected to the right end of the cylinder body 1 through two flange plates and multiple bolts, and then the left collector hood 4 is fixedly connected to the left end of the cylinder body 1 through two flange plates and multiple bolts. At this time, the O-ring 17 is just tightly pressed against the left side of the inner wall of the left collector hood 4, so that the coolant inside the left collector hood 4 can be prevented from leaking during operation through the O-ring 17. At the same time, the ventilation pipe 8 enters the inside of the through-hole 9, and the external thread tube 10 passes through the through-hole 9. Then, sealing tape is wound around the outer wall of the external thread tube 10. Due to the setting of the sealing rotary joint 14, the internal thread tube 15 can be rotated while keeping the hose 13 stationary. And because the hose 13 is flexible, the internal thread tube 15 can be tightened and fixed to the outer wall of the external thread tube 10 through the hexagonal nut 18 and a wrench, and the sealing tape is used to prevent liquid leakage. The installation is completed;

[0034] When heat exchange is to be carried out, the coolant will enter the interior of the left collector hood 4 through the input pipeline, then enter the interiors of the multiple heat exchange tubes 3, and then flow into the interior of the right collector hood 5. Subsequently, the coolant flows out through the output pipeline. At the same time, the gas to be cooled will enter the interior of the cylinder body 1 through the intake pipeline, and the gas will come into contact with the multiple heat exchange tubes 3, so that the gas can be refrigerated. The refrigerated gas will be discharged through the exhaust pipeline;

[0035] When defrosting the outer walls of the multiple heat exchange tubes 3 is required, the hot air blower 12 blows hot air into the interiors of the hose 13, the external thread tube 10, the ventilation pipe 8 and the air collecting cylinder 6, and blows the hot air onto the outer walls of the multiple heat exchange tubes 3 through the multiple uniformly distributed one-way jet nozzles 7. Thus, the frost layer on the outer walls of the multiple heat exchange tubes 3 can be melted by the hot air. At the same time, the discharge valve pipe 19 is opened to discharge the gas and the melted water can also be discharged. Therefore, in this way, the purpose of facilitating the reduction of the defrosting duration to improve work efficiency and being not restricted by the ambient temperature during defrosting can be achieved.

[0036] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A heat exchanger with a defrosting device, comprising a cylinder body (1), wherein two mounting plates (2) are fixedly connected to the inner wall of the cylinder body (1), and a plurality of heat exchange tubes (3) are installed between the two mounting plates (2), characterized in that: A gas collecting cylinder (6) is fixedly connected between the two mounting discs (2). A plurality of one-way jet nozzles (7) are connected through the outer wall of the gas collecting cylinder (6). The left and right sides of the cylinder body (1) are respectively flange-connected with a left air collecting cover (4) and a right air collecting cover (5). A through hole (9) is formed through the outer wall of the left air collecting cover (4). The left side of the gas collecting cylinder (6) is communicated with a ventilation pipe (8) that penetrates through the left mounting disc (2) and extends into the through hole (9). The left end of the ventilation pipe (8) is provided with an external thread pipe (10). A horizontal plate (11) is installed at the left end of the left air collecting cover (4) and is located above the external thread pipe (10). A hot air blower (12) is installed at the upper end of the horizontal plate (11). The air outlet end of the hot air blower (12) penetrates through the horizontal plate (11) and is fixedly connected with a hose (13). The other end of the hose (13) is installed with a sealed rotary joint (14) through a connector. The other end of the sealed rotary joint (14) is installed with an internal thread pipe (15).

2. The heat exchanger with a defrosting device according to claim 1, wherein: An installation ring (16) is fixedly connected to the outer wall of the ventilation pipe (8). The left end of the installation ring (16) is fixedly connected with an O-ring (17) that is pressed against the left side of the inner wall of the left air collecting cover (4) through an installation groove.

3. The heat exchanger with a defrosting device according to claim 1, characterized in that: A discharge valve pipe (19) is connected through the lower end of the outer wall of the cylinder body (1).

4. A heat exchanger with a defrosting device according to claim 1, characterized in that: A first flange pipe is connected through the outer wall of the left air collecting cover (4), a second flange pipe is connected through the outer wall of the right air collecting cover (5), a third flange pipe is connected through the lower side of the outer wall of the cylinder body (1), and a fourth flange pipe is connected through the upper side of the outer wall of the cylinder body (1).

5. The heat exchanger with a defrosting device according to claim 1, characterized in that: Both ends of the plurality of heat exchange tubes (3) penetrate through the two mounting discs (2).

6. The heat exchanger with a defrosting device according to claim 1, characterized in that: A hexagonal nut (18) is fixedly connected to the outer wall of the internal thread pipe (15).

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