CN212227807U

CN212227807U - Hose heat exchanger and heat exchange system for high-viscosity medium

Info

Publication number: CN212227807U
Application number: CN202021169136.2U
Authority: CN
Inventors: 程文林; 饶杰; 张建明; 李鹏; 任峰
Original assignee: Chongqing Hypro Automation Technology Co ltd
Current assignee: Chongqing Hypro Automation Technology Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-12-25
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a hose heat exchanger and heat transfer system for high viscosity medium, this heat exchanger include inner tube and outer tube, and inner tube and outer tube concentric arrangement constitute the double-layer tube structure that has cyclic annular chamber, inner tube and outer tube are hose and inner tube both ends and stretch out the outer tube respectively and correspond the end, and the inner tube is used for high viscosity medium circulation and inner tube both ends to be inlet and liquid outlet respectively, and cyclic annular chamber is used for the circulation of heat transfer medium, and the outer tube is fixed on the inner tube through the fastening device who sets up respectively at the outer tube both ends to make cyclic annular chamber both ends seal, be equipped with water inlet and delivery port on two fastening devices respectively, water inlet and delivery port communicate with cyclic annular chamber respectively, and the heat transfer medium of being convenient for gets into cyclic annular intracavity and carries out. The heat exchange system adopting the hose heat exchanger can effectively control the temperature of a high-viscosity medium and improve the spraying quality of the robot.

Description

Hose heat exchanger and heat exchange system for high-viscosity medium

Technical Field

The utility model relates to a be used for carrying fluid heat exchanger, in particular to hose heat exchanger and heat transfer system for high viscosity medium.

Background

The heating hose is often applied to heating and heat preservation in the process of conveying high-viscosity media (such as glue, wax, oil, natural gas, asphalt and the like) in the industries of automobiles, energy sources, chemical engineering and the like, wherein the electric heating hose is a hose heat exchanger which is most widely applied at present because the energy sources are convenient to take and control.

In the extrusion coating application of high-viscosity media, at present, automatic operation of a robot is mainly adopted, the high-viscosity media are conveyed to a spray gun through a conveying pump and a conveying pipe for operation, and in order to meet a gluing track, the conveying pipeline is usually fixedly arranged on each shaft of a robot arm, so that the conventional conveying pipeline adopts a hose and needs whole-process temperature control. Particularly, the medium with large influence of temperature on viscosity requires small radial and axial changes of the temperature of the medium in the pipe in the conveying process, and can meet the requirements of the extrusion coating process only by realizing constant temperature control at different environmental temperatures.

Chinese patent CN104246345A and chinese patent CN208546626U both propose technical solutions for electrically heating hoses, and in combination with other existing solutions, there are main disadvantages in that:

1. the existing electric heating hose is uneven in temperature distribution for controlling high-viscosity media, and large temperature overshoot is easy to occur in the control process. The existing electric heating hose mainly comprises an inner layer, an electric heating wire, an insulating layer, a protective layer, a temperature sensor, a joint and the like. The inner layer pipe of the electric heating pipe is generally made of nylon, polytetrafluoroethylene or other plastics, the inner surface of the electric heating pipe is in contact with a heated medium, the outer surface of the electric heating pipe is in contact with an electric heating wire, the electric heating wire is usually wound in a spiral mode, and the distance between two adjacent circles of electric heating wires is large, so that the problem that the temperature change of the inner layer and the outer layer of the electric heating pipe in the axial direction is large is solved. Meanwhile, the temperature measuring point of a temperature sensor arranged in the electric heating pipe is directly contacted with the electric heating wire, the actual temperature difference and the measured temperature difference of the medium in the pipe are usually larger than 5 ℃, especially the temperature difference is larger in the temperature rising process, and the problem that the medium is deteriorated due to overlarge temperature overshoot is easy to occur in the heating process.

2. When the external environment temperature is too high, the physical property change of the high-viscosity medium is large, the glue gun outlet glue type of the robot is often unstable, the gluing quality is easy to be unqualified, and the problems of waste, pollution and high manual spot repair rate are caused. At this time, the temperature of the high-viscosity medium is often required to be reduced, however, the existing high-viscosity medium electric heating hose does not have the temperature reduction function. In addition, because the space of the operation station is limited, when the robot carries out gluing operation, the robot usually needs to drag the conveying pipeline to move at will, and if the conventional metal pipe-in-pipe heat exchange equipment is adopted, the conventional metal pipe-in-pipe heat exchange equipment cannot be arranged on the arm of the robot due to the length and the structure, so that the conventional metal pipe-in-pipe heat exchange equipment cannot be applied to a gluing process needing whole-process heating.

Therefore, in the extrusion coating application of the high-viscosity medium, the hose heat exchanger which can adapt to the movement of each shaft of the robot, can realize the constant temperature control of the medium in the hose at different environmental temperatures and has small temperature change along the radial direction and the axial direction is urgently needed to be provided.

Disclosure of Invention

The above-mentioned not enough to prior art exists, the utility model aims at providing an ability removes along with the robot, does not influence the robot operation, and can high viscosity medium heat exchanger and heat transfer system for high viscosity medium of effective control high viscosity medium service temperature.

The utility model provides a high viscosity is hose heat exchanger for medium, includes inner tube and outer tube, inner tube and outer tube concentric setting and constitute the double-deck tubular construction that has cyclic annular chamber, inner tube and outer tube are hose and inner tube both ends and stretch out the outer tube respectively and correspond the end, and the inner tube is used for high viscosity medium circulation and inner tube both ends to be inlet and liquid outlet respectively, and cyclic annular chamber is used for heat transfer medium circulation, and the outer tube is fixed on the inner tube through the fastening device who sets up respectively at the outer tube both ends to make cyclic annular chamber both ends seal, be equipped with water inlet and delivery port on two fastening device respectively, water inlet and delivery port communicate with cyclic annular chamber respectively, and the heat transfer medium of being convenient for gets into cyclic annular intracavity and carries out.

Further, the fastening mechanism comprises a joint body, a locking sleeve, a first compression nut, a second compression nut, a sealing assembly and a joint nut; the connector body is sleeved on the inner pipe, the water inlet and the water outlet are respectively arranged on the corresponding connector body and communicated with the annular cavity, the water inlet or the water outlet is used as a boundary, one end of the connector body corresponding to the outer pipe is a connecting end, and the other end of the connector body is a sealing end.

The end face of the joint body where the connecting end is located is provided with an annular outer pipe installation groove which is sunken inwards, the outer pipe is embedded into the outer pipe installation groove, the outer end of the inner ring groove wall of the outer pipe installation groove is of a tooth-shaped structure, the tooth shape is a certain angle and faces the sealing end, and the diameter of the circumferential surface of the inner end is gradually increased to enable the inner end of the outer pipe installation groove to be gradually reduced; the outer ring groove wall of the outer pipe installation groove is shorter than the inner ring groove wall of the outer pipe installation groove, the outer circumference of the corresponding joint body is provided with an external thread, and the joint nut is arranged on the joint body where the connecting end is arranged and is screwed and fixedly connected with the joint body; the locking sleeve is arranged between the joint nut and the outer pipe, and the locking sleeve is provided with a wedge-shaped structure corresponding to the inner end of the outer pipe mounting groove towards the sealing end; the outer circumference of the first compression nut is provided with threads and is arranged on the connection end face of the connector body and located between the connector nut and the outer pipe, the first compression nut is screwed and fixed with the connector nut, so that the locking sleeve is compressed in the outer pipe installation groove, and one end of the outer pipe is wedged in the outer pipe installation groove.

The sealing assembly is arranged between the joint body where the sealing end is located and the inner pipe, and a sealing groove is formed in the joint body and used for placing the sealing assembly; the second compression nut is arranged on the sealing end face of the joint body and is positioned between the joint body and the inner pipe, the second compression nut is cylindrical and is provided with an external thread, an annular bulge corresponding to the sealing groove is arranged towards one end of the sealing groove, a groove corresponding to the second compression nut is arranged on the end face of the joint body, a thread matched with the external thread of the second compression nut is arranged on the groove, the second compression nut and the joint body are fixedly connected in a screwing mode, meanwhile, the bulge compresses the sealing assembly in the sealing groove, and therefore the sealing effect is achieved.

Furthermore, the sealing assembly is formed by alternately arranging a plurality of sealing gaskets and a plurality of O-shaped rings.

Furthermore, a plurality of grooves are formed in the outer end faces of the first compression nut and the second compression nut, and therefore the first compression nut and the second compression nut can be conveniently disassembled and assembled through a special tool.

A heat exchange system for high-viscosity media comprises a conveying pump, a conveying hose and a spray gun, wherein one end of the conveying hose is connected with the outlet end of the conveying pump, the other end of the conveying hose is connected with the inlet end of the spray gun, the heat exchange system comprises the hose heat exchanger, a temperature sensor and a controller, the hose heat exchanger is arranged on the conveying hose, so that the conveying hose is divided into a first conveying hose and a second conveying hose, one end of the first conveying hose is connected with the outlet end of the conveying pump, and the other end of the first conveying hose is connected with the liquid inlet of the hose; one end of the second conveying hose is connected with a liquid outlet of the hose heat exchanger, and the other end of the second conveying hose is connected with an inlet end of the spray gun; the water inlet and the water outlet of the hose heat exchanger are respectively connected with the outlet and the inlet of the constant-temperature water tank, so that a heat exchange medium can conveniently enter the hose heat exchanger to exchange heat with a high-viscosity medium; the temperature sensor is arranged on the spray gun and used for detecting the temperature of a high-viscosity medium at the outlet of the spray gun, the temperature sensor and the constant-temperature water tank are respectively connected with the controller, and the controller is convenient to compare the real-time temperature detected by the temperature sensor with the set temperature so as to adjust the temperature of the constant-temperature water tank and further adjust the temperature of a heat exchange medium in the constant-temperature water tank.

Furthermore, the water outlet and the liquid inlet of the hose heat exchanger are positioned at the same end of the outer pipe, and the water inlet and the liquid outlet of the hose heat exchanger are positioned at the other end of the outer pipe, so that a heat exchange medium enters the hose heat exchanger to perform countercurrent heat exchange with a high-viscosity medium.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a hose heat exchanger simple structure, easily installation adopt automatic control's thermostatted water to control by temperature change, and medium temperature is little along radial and axial change in the heat exchanger, has avoided current electrical heating to have local degree too high and probably have the too big problem of temperature overshoot.

2. The utility model discloses a hose heat exchanger not only can effectively heat high viscosity medium, can effectively cool off high viscosity medium moreover, can effectively control the temperature of high viscosity medium in the heat exchanger when ambient temperature is greater than the use temperature.

Drawings

Fig. 1-the structure of the hose heat exchanger of the present invention is schematically illustrated.

Fig. 2-fig. 1A are partially enlarged views.

Figure 3-schematic of the heat exchange system.

Wherein: 1-inner tube; 2-an outer tube; 3-a connector body; 4-a union nut; 5-locking sleeve; 6-a first compression nut; 7-O-shaped ring; 8-a sealing gasket; 9-a second compression nut; 10-a water inlet; 11-a water outlet; 01-a delivery pump; 02-hose heat exchanger; 03-a spray gun; 04-a constant-temperature water tank; 05-a controller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the high-viscosity medium hose heat exchanger includes an inner tube 1 and an outer tube 2, the inner tube 1 and the outer tube 2 are concentrically arranged to form a double-layer tube structure having an annular cavity, the inner tube 1 and the outer tube 2 are hoses, two ends of the inner tube 1 respectively extend out of corresponding ends of the outer tube 2, the inner tube 1 is used for flowing of a high-viscosity medium, two ends of the inner tube are respectively a liquid inlet and a liquid outlet, the annular cavity is used for flowing of a heat exchange medium, the outer tube 2 is fixed on the inner tube 1 through fastening mechanisms respectively arranged at two ends of the outer tube 2 to seal two ends of the annular cavity, the two fastening mechanisms are respectively provided with a water inlet 10 and a water outlet 11, the water inlet 10 and the water outlet 11 are respectively communicated with the annular cavity, and the heat exchange medium.

Here, hose heat exchanger adopts inlayer hose (inner tube) and outer hose (outer tube) to constitute, the circulation of inner tube high viscosity medium, the circulation of heat transfer medium is supplied to the cyclic annular chamber between outer tube and the inner tube, because of inner tube and outer tube all are the hose, make can't set up water inlet and delivery port and heat transfer medium pipeline on the outer tube and connect, the event sets up water inlet and delivery port on fastening device, guarantee that water inlet and delivery port and cyclic annular chamber intercommunication just can make heat transfer medium circulate in cyclic annular chamber, thereby guarantee that high viscosity medium and heat transfer medium can carry out abundant heat transfer.

The hose heat exchanger is light in weight, can install on the robot arm in the use, because of the hose that adopts simultaneously, install the back on the robot arm, can remove along with the robot removal, and can not influence the normal operation of robot. Meanwhile, the hose heat exchanger is arranged on the robot arm, so that the occupied space is greatly saved in the operation space with limited space.

In specific implementation, the fastening mechanism comprises a joint body 3, a locking sleeve 5, a first compression nut 6, a second compression nut 9, a sealing assembly and a joint nut 4; the connector body 3 is sleeved on the inner pipe 1, the water inlet 10 and the water outlet 11 are respectively arranged on the corresponding connector body 3 and communicated with the annular cavity, the water inlet 10 or the water outlet 11 is used as a boundary, one end of the connector body 3 corresponding to the outer pipe is a connecting end, and the other end of the connector body is a sealing end.

An annular outer tube mounting groove which is sunken inwards is formed in the end face of the connector body 3 where the connecting end is located, the outer tube 2 is embedded into the outer tube mounting groove, the outer end of the inner ring groove wall of the outer tube mounting groove is of a tooth-shaped structure, the tooth shape is of a certain angle and faces the sealing end, and the diameter of the circumferential surface of the inner end is gradually increased to enable the inner end of the outer tube mounting groove to be gradually reduced; the outer ring groove wall of the outer pipe installation groove is shorter than the inner ring groove wall of the outer pipe installation groove, the outer circumference of the corresponding joint body 3 is provided with an external thread, and the joint nut 4 is arranged on the joint body 3 where the connecting end is arranged and is fixedly connected with the joint body 3 in a screwed mode; the locking sleeve 5 is arranged between the joint nut 4 and the outer pipe 2, and the locking sleeve 5 is provided with a wedge-shaped structure corresponding to the inner end of the outer pipe mounting groove towards the sealing end; the outer circumference of the first compression nut 6 is provided with threads and is arranged on the connection end face of the joint body 3 and is positioned between the joint nut 4 and the outer pipe 2, the first compression nut 6 is screwed and fixed with the joint nut 4, so that the locking sleeve 5 is compressed in the outer pipe installation groove, and one end of the outer pipe 2 is wedged in the outer pipe installation groove.

Therefore, after the outer pipe is inserted into the outer pipe mounting groove, when the first compression nut is screwed, the joint nut not only plays a role in guiding the locking sleeve, but also has a gap with the joint body, so that the joint nut also plays a certain compression force role on the locking sleeve when the first compression nut is screwed; after first gland nut screws up, the lock sleeve is compressed tightly in the outer tube mounting groove, the wedge structure of lock sleeve can effectively be with outer tube wedging in the outer tube mounting groove simultaneously, outer tube mounting groove place periphery outer end is the sawtooth structure simultaneously, and the sawtooth is towards sealed end, the sawtooth structure has increased the frictional force of outer tube with the joint body, the possibility of outer tube roll-off has been avoided, and play good sealed effect, guarantee that heat transfer medium can not follow the outer tube and leak with the joint body outer tube mounting groove junction.

The sealing assembly is arranged between the joint body 3 with the sealing end and the inner pipe 1, and a sealing groove is formed in the joint body 3 and used for placing the sealing assembly; second gland nut 9 sets up on the 3 sealed terminal surfaces of joint body and is located and connects between body 3 and inner tube 1, second gland nut 9 is cylindric and is equipped with the external screw thread to being equipped with the cyclic annular arch that corresponds with the seal groove towards seal groove one end, being equipped with the recess that corresponds with second gland nut 9 on the 3 terminal surfaces of joint body, and being equipped with on the recess with the screw thread complex of second gland nut 9 external screw thread, second gland nut 9 closes fixed connection with joint body 3 spiral shell simultaneously the arch compresses tightly seal assembly in the seal groove, thereby plays sealed effect.

In specific implementation, the sealing assembly is formed by alternately arranging a plurality of sealing gaskets 8 and a plurality of O-shaped rings 7.

Here, the seal assembly comprises a plurality of sealed pads and O type circle, and when one of them O type circle damaged back, other O type circles still can play sealed effect, prevents that heat transfer medium from leaking. Meanwhile, when a small amount of leakage exists, the second compression nut can be continuously screwed due to certain elasticity of the O-shaped ring, so that the sealing assembly is continuously compressed and deformed, the O-shaped ring is compressed and deformed in the radial direction, and the sealing effect is achieved.

During specific implementation, a plurality of grooves are formed in the outer end faces of the first compression nut 6 and the second compression nut 9, and the first compression nut 6 and the second compression nut 9 can be conveniently disassembled and assembled by using a special tool.

When the hose heat exchanger is assembled, a first compression nut, a locking sleeve, a joint nut and a joint body are sleeved on one end of the inner pipe in sequence, and the inner pipe extends out of the joint body by a certain length; then installing an O-shaped ring and a gasket on the inner pipe and the joint body, installing a second compression nut, and then screwing the second compression nut to compress the O-shaped ring and the gasket in the sealing groove; then the outer pipe is embedded into the outer pipe mounting groove, the joint nut is screwed down, the locking sleeve is assembled, finally the first compression nut is screwed down, the assembly of the fastening mechanism at one end of the inner pipe is completed, and the steps are repeated to complete the assembly of the fastening mechanism at the other end of the inner pipe, and the assembly of the hose heat exchanger is completed.

Referring to fig. 3, the heat exchange system for the high-viscosity medium comprises a delivery pump 01, a delivery hose and a spray gun 03, wherein one end of the delivery hose is connected with the outlet end of the delivery pump 01, and the other end of the delivery hose is connected with the inlet end of the spray gun 03; one end of the second conveying hose is connected with a liquid outlet of the hose heat exchanger 02, and the other end of the second conveying hose is connected with an inlet end of a spray gun 03; a water inlet and a water outlet of the hose heat exchanger 02 are respectively connected with an outlet and an inlet of the constant-temperature water tank 04, so that a heat exchange medium can conveniently enter the hose heat exchanger 02 to exchange heat with a high-viscosity medium; the temperature sensor sets up the temperature that is used for detecting the high viscosity medium in spray gun exit on the spray gun, temperature sensor and thermostatic water tank 04 are connected with controller 05 respectively, and the real-time temperature that the controller 05 that is convenient for detected according to temperature sensor compares with the temperature of setting for to adjust thermostatic water tank 04's temperature, thereby adjust thermostatic water tank 04 in the temperature of heat transfer medium.

Hose heat exchangers are usually mounted on the robot arm so that they can be moved along with the robot without affecting the operation of the robot. In the embodiment, the temperature sensor and the constant temperature water tank are wirelessly connected with the controller.

Before the heat exchange system operates, an optimal use temperature range of a high-temperature viscosity medium is preset in a controller, in the operation process, when the temperature detected by a temperature sensor is higher than the set temperature, the high-viscosity medium needs to be cooled, the controller controls a constant-temperature water tank to reduce the temperature of the constant-temperature water tank, so that the temperature of the heat exchange medium entering a hose heat exchanger is reduced, heat exchange is carried out between the low-temperature heat exchange medium and the high-temperature high-viscosity medium in the hose heat exchanger, the temperature of the high-viscosity medium is reduced, and the temperature of the high-viscosity medium is ensured to be within the optimal use temperature range; when the temperature detected by the temperature sensor is lower than the set temperature, the temperature of the high-viscosity medium needs to be raised, the controller controls the constant-temperature water tank to raise the temperature of the constant-temperature water tank, so that the temperature of the heat exchange medium entering the hose heat exchanger is raised, the heat exchange is carried out between the high-temperature heat exchange medium and the low-temperature high-viscosity medium in the hose heat exchanger, the temperature of the high-viscosity medium is raised, and the temperature of the high-viscosity medium is ensured to be within the optimal use temperature range. Like this, realized the automated control of temperature, can effectively avoid the high temperature or cross excessively to cause the influence to the spraying quality.

During specific implementation, the water outlet and the liquid inlet of the hose heat exchanger 02 are located at the same end of the outer pipe, and the water inlet and the liquid outlet of the hose heat exchanger 02 are located at the other end of the outer pipe, so that a heat exchange medium enters the hose heat exchanger 02 and carries out countercurrent heat exchange with a high-viscosity medium.

Therefore, the heat exchange between the heat exchange medium and the high-viscosity medium is more efficient, and the heat exchange efficiency is favorably improved.

Finally, it should be noted that the above-mentioned embodiments of the present invention are only examples for illustrating the present invention, and are not limitations to the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims

1. High viscosity is hose heat exchanger for medium, including inner tube and outer tube, inner tube and outer tube set up and constitute the double-deck tubular construction that has cyclic annular chamber concentrically, its characterized in that, inner tube and outer tube are hose and inner tube both ends and stretch out the outer tube respectively and correspond the end, and the inner tube is used for high viscosity medium circulation and inner tube both ends to be inlet and liquid outlet respectively, and cyclic annular chamber is used for heat transfer medium circulation, and the outer tube is fixed on the inner tube through the fastening device who sets up respectively at the outer tube both ends to make cyclic annular chamber both ends seal, be equipped with water inlet and delivery port on two fastening device respectively, water inlet and delivery port communicate with cyclic annular chamber respectively, and the heat transfer medium of being convenient for gets into cyclic annular intracavity and carries out the.

2. The high viscosity medium hose heat exchanger according to claim 1, wherein the fastening mechanism includes a joint body, a lock sleeve, a first compression nut, a second compression nut, a seal assembly, and a joint nut; the joint body is sleeved on the inner pipe, the water inlet and the water outlet are respectively arranged on the corresponding joint body and communicated with the annular cavity, the water inlet or the water outlet is used as a boundary, one end of the joint body corresponding to the outer pipe is a connecting end, and the other end of the joint body is a sealing end;

the end face of the joint body where the connecting end is located is provided with an annular outer pipe installation groove which is sunken inwards, the outer pipe is embedded into the outer pipe installation groove, the outer end of the inner ring groove wall of the outer pipe installation groove is of a tooth-shaped structure, the tooth shape is a certain angle and faces the sealing end, and the diameter of the circumferential surface of the inner end is gradually increased to enable the inner end of the outer pipe installation groove to be gradually reduced; the outer ring groove wall of the outer pipe installation groove is shorter than the inner ring groove wall of the outer pipe installation groove, the outer circumference of the corresponding joint body is provided with an external thread, and the joint nut is arranged on the joint body where the connecting end is arranged and is screwed and fixedly connected with the joint body; the locking sleeve is arranged between the joint nut and the outer pipe, and the locking sleeve is provided with a wedge-shaped structure corresponding to the inner end of the outer pipe mounting groove towards the sealing end; the outer circumference of the first compression nut is provided with threads, the first compression nut is arranged on the connecting end surface of the joint body and is positioned between the joint nut and the outer pipe, and the first compression nut and the joint nut are screwed and fixed, so that the locking sleeve is compressed in the outer pipe mounting groove, and one end of the outer pipe is wedged in the outer pipe mounting groove;

3. The high viscosity medium hose heat exchanger as claimed in claim 2, wherein the sealing member is formed by alternately arranging a plurality of sealing pads and a plurality of O-rings.

4. The high viscosity medium hose heat exchanger as claimed in claim 2, wherein the first and second compression nuts are provided at outer end surfaces thereof with a plurality of grooves for facilitating the disassembly and assembly of the first and second compression nuts by a dedicated tool.

5. The heat exchange system for the high-viscosity medium comprises a conveying pump, a conveying hose and a spray gun, wherein one end of the conveying hose is connected with the outlet end of the conveying pump, and the other end of the conveying hose is connected with the inlet end of the spray gun; one end of the second conveying hose is connected with a liquid outlet of the hose heat exchanger, and the other end of the second conveying hose is connected with an inlet end of the spray gun; the water inlet and the water outlet of the hose heat exchanger are respectively connected with the outlet and the inlet of the constant-temperature water tank, so that a heat exchange medium can conveniently enter the hose heat exchanger to exchange heat with a high-viscosity medium; the temperature sensor is arranged on the spray gun and used for detecting the temperature of a high-viscosity medium at the outlet of the spray gun, the temperature sensor and the constant-temperature water tank are respectively connected with the controller, and the controller is convenient to compare the real-time temperature detected by the temperature sensor with the set temperature so as to adjust the temperature of the constant-temperature water tank and further adjust the temperature of a heat exchange medium in the constant-temperature water tank.

6. The hose heat exchange system for high-viscosity media according to claim 5, wherein the water outlet and the liquid inlet of the hose heat exchanger are located at the same end of the outer tube, and the water inlet and the liquid outlet of the hose heat exchanger are located at the other end of the outer tube, so that the heat exchange medium enters the hose heat exchanger and performs countercurrent heat exchange with the high-viscosity media.