CN107228586A - One kind collection Water Heat Pipes - Google Patents

Abstract

Collect Water Heat Pipes, including supervisor's body the invention discloses one kind, the side wall of supervisor's body is embedded with helix tube, and the helix tube protrudes the madial wall and lateral wall of supervisor's body respectively, and the helix tube is the interior hollow cavity for being provided with heat-exchange working medium.Using collection Water Heat Pipes disclosed by the invention, supervisor's body interior heat flows through helix tube and produces disturbance, reduce heat convection thermal resistance, reinforcing supervisor's body interior hot-fluid heat exchange efficiency, the part that helix tube is located at supervisor's outer body wall produces disturbance to extraneous air stream, reduce supervisor's heat convection thermal resistance, the heat exchange efficiency of reinforcing outer gas stream and supervisor's body outer wall.

Description

a heat pipe

technical field

The invention relates to the technical field of heat exchange devices, and more specifically, to a water collecting heat pipe.

Background technique

With the rapid development of society, the use and dependence of various industries on energy is gradually deepening. In order to use energy more effectively, the society's demand for efficient heat exchange devices is increasing. Enhanced heat transfer is an important topic that many scholars are concerned about, especially the emergence of energy crisis has greatly promoted the development of enhanced heat transfer technology. In recent decades, the energy problem has become more and more severe, and the requirements for heat exchange efficiency of heat pipes have been relatively higher. Many technologies for enhancing heat transfer have been widely applied to heat pipes. The most important task of enhancing heat transfer is to improve and enhance the efficiency of heat transfer. At present, the technology and theory of heat transfer enhancement are becoming more and more mature and perfect.

Enhanced heat transfer is an important means to achieve rational and efficient use of energy, and it is also a key technology for the implementation of many energy-saving and emission-reduction measures. In actual industrial and engineering production, heat pipes are the most common device for applying enhanced heat transfer technology. Therefore, the use of enhanced heat transfer technology to design and develop heat pipes can produce heat pipes with high heat exchange efficiency, reduce the consumption of refrigeration materials, obtain the smallest heat exchange area, and use the most economical materials to achieve actual engineering production. Many requirements in the system are of great significance to energy conservation and utilization.

The heat exchanger is a very important device for recovering heat in the heat transfer process and improving the heat transfer efficiency. The heat pipe is the most important element in the heat exchanger device. Smooth tube is the most commonly used heat exchange tube, but due to the low heat transfer efficiency of smooth tube, it is easy to cause pipe blockage due to fouling, and its maintenance cycle is very short, and the cost of inspection and repair is relatively high, so smooth tube Tubes are difficult to meet the needs of heat transfer in practical engineering. Spiral tube is a typical space curve tube. Because it can expand freely, it can effectively eliminate the temperature stress in the working process, and can greatly reduce the welding between the tube and the tube sheet. The leakage probability is small, the reliability is good, and the structure is compact. , high heat transfer efficiency, self-generated centrifugal force field and secondary flow, which can effectively delay the occurrence of heat transfer deterioration, so it is widely used in power, petroleum, chemical, navigation, aerospace and nuclear industries and other industries.

Existing spiral cooling tubes wound on the shell side of the light tube cannot strengthen the disturbance of the flow field inside the tube, the refrigerant in the spiral tube cannot form self-circulation, there is no means of collecting condensed water, the heat dissipation efficiency of the heat pipe is not high, and it is a waste of resources.

To sum up, how to effectively solve the problem of low heat dissipation efficiency of the heat pipe is an urgent problem for those skilled in the art.

Contents of the invention

In view of this, the object of the present invention is to provide a water-collecting heat pipe to solve the problems of low heat dissipation efficiency of the heat pipe.

In order to achieve the above object, the present invention provides the following technical solutions:

A water-collecting heat pipe, comprising a main pipe body, the side wall of the main pipe body is embedded with a spiral tube, and the spiral tube protrudes from the inner side wall and the outer side wall of the main pipe body respectively, and the spiral tube is provided with a heat exchange tube inside. The hollow cavity of the working fluid.

Preferably, in the above-mentioned water collection heat pipe, the spiral tube is a closed tube body so that the heat exchange working medium forms a self-circulation therein.

Preferably, in the above water collection heat pipe, the spiral pipe includes a straight pipe for the return flow of the heat exchange working medium, and the axis of the straight pipe is arranged parallel to the axis of the main pipe body.

Preferably, in the above-mentioned water collection heat pipe, a predetermined distance is set between the pipes of the spiral pipe to form a diaphragm with the main pipe body.

Preferably, in the above-mentioned water-collecting heat pipe, a water collection tank is provided at the bottom of the main pipe body, and a conduit for leading out condensed water is provided in the water collection tank.

Preferably, the above-mentioned water collecting heat pipe further includes a water collecting tank for collecting water, and the conduit is arranged inside the water collecting tank.

The water-collecting heat pipe provided by the present invention includes a main pipe body, the side wall of the main pipe body is embedded with a spiral tube, and the spiral pipe protrudes from the inner side wall and the outer side wall of the main pipe body respectively, and the spiral pipe is a hollow cavity with a heat-exchanging working medium inside. . With the water collecting heat pipe provided by the present invention, the internal heat of the main pipe body flows through the spiral tube to generate disturbance, which reduces the convective heat transfer heat resistance and enhances the heat flow and heat transfer efficiency inside the main pipe body. Generate turbulence, reduce the thermal resistance of the main pipe convection heat transfer, and enhance the heat exchange efficiency between the external airflow and the outer wall of the main pipe body.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural view of a water collecting heat pipe provided by an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of a water collecting heat pipe provided by an embodiment of the present invention;

Fig. 3 is a partial cross-sectional structural schematic diagram of a water collection heat pipe provided by an embodiment of the present invention.

The markings in the attached drawings are as follows:

Main body 1, spiral pipe 2, water collecting tank 3, conduit 4, water collecting tank 5.

detailed description

The embodiment of the invention discloses a water-collecting heat pipe to solve the problems of low heat dissipation efficiency of the heat pipe and the like.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-3, Figure 1 is a schematic structural view of a water collection heat pipe provided by an embodiment of the present invention; Figure 2 is a schematic cross-sectional structure diagram of a water collection heat pipe provided by an embodiment of the present invention; A partial cross-sectional structural schematic diagram of a water collection heat pipe provided by an embodiment of the invention.

In a specific embodiment, the water collection heat pipe provided by the present invention includes a main pipe body 1, which is generally a round pipe, and a spiral pipe 2 is embedded on the side wall of the main pipe body 1, and the cavity formed by the spiral pipe 2 The diameter of the pipe is equal to the diameter of the main pipe body 1, so that the parts of the spiral pipe 2 protruding from the inner side wall and the outer side wall of the main pipe body 1 are equal in size, and the heat exchange working medium is arranged in the spiral pipe 2, which can be specifically water or nitrogen, etc. Inert gas, of course, in other embodiments, the heat exchange working medium can also be selected according to needs, as long as the same technical effect can be achieved. The spiral pipe 2 and the main pipe body 1 are generally preferably arranged in one piece, or fixed by welding or the like, but the one-piece arrangement is convenient and easy to implement, and is within the protection scope of the present invention.

It can be understood that the two spiral tubes increase the contact area between the heat flow inside the main body 1 and the heat exchange medium inside the spiral tube 2, and enhance the heat exchange efficiency between the heat flow inside the main body 1 and the heat exchange medium inside the spiral tube 2. When the external air flows through the spiral tube 2, the water in it cools and condenses on the outer wall of the heat pipe. When a part of the condensed water flows through the outer wall of the main pipe body 1, it exchanges heat with the outer wall, reducing the temperature of the heat flow inside the main pipe.

With the water collecting heat pipe provided by the present invention, the internal heat of the main pipe body 1 flows through the spiral pipe 2 to generate disturbance, which reduces the convective heat transfer heat resistance and enhances the heat flow heat transfer efficiency inside the main pipe body 1. The spiral pipe 2 is located on the outer wall of the main pipe body 1 Some of them generate disturbances to the external air flow, reduce the convective heat transfer heat resistance of the main pipe, and enhance the heat exchange efficiency between the external air flow and the outer wall of the main pipe body 1 .

Specifically, the spiral tube 2 is a closed tube so that the heat exchange working medium forms a self-circulation therein. The spiral tube 2 is a closed pipeline. The spiral tube 2 embedded in the main pipe body 1 is affected by the heat flow. After the internal heat exchange working medium is heated and generates a pressure difference, the heat exchange working medium flows from bottom to top along the spiral tube 2, and then from other Partial cooling, preferably, can be a pipe body away from the main body 1, the specific form of the pipe body can be set according to actual needs, the heat exchange working medium flows into the spiral tube 2 from top to bottom, and the heat exchange working medium is in the spiral tube 2 form a self-circulation.

Further, the spiral tube 2 includes a straight tube for the return flow of the heat exchange working medium, and the axis of the straight tube is arranged parallel to the axis of the main pipe body 1 .

In order to facilitate the smooth flow of the heat-exchanging medium from top to bottom, the above-mentioned purpose can be achieved by setting straight pipes, which are set away from the main body 1, and the axis of the straight pipes can be arranged parallel to the axis of the main body 1, so that the structure is simple and easy to manufacture . Certainly, in other embodiments, it can also be set as an inclined pipe or other forms of pipe body, as long as the heat exchange working medium can flow down smoothly, the specific implementation manner is not limited.

On the basis of the above-mentioned embodiments, the pipes of the spiral pipe 2 are provided with preset intervals to form a diaphragm with the main pipe body 1 . There is a predetermined interval between the pipes of the spiral pipe 2, and the main pipe body 1 fills the gap to form a diaphragm, which enhances heat dissipation, reduces process resistance, and improves heat dissipation efficiency. Of course, in other embodiments, the above settings may not be performed, and all of them are within the protection scope of the present invention.

Further, a water collection tank 3 is provided at the bottom of the main pipe body 1, and a conduit 4 for leading out condensed water is provided in the water collection tank 3. In order to collect the condensed water, a sump 3 is provided at the bottom of the main body 1, and the condensed water flows into the sump 3 at the bottom of the main body 1 along the spiral pipe 2, and is collected through the sump 3 for further utilization. The conduit 4 and the sump 3 can be fixed by threaded connection.

Furthermore, it also includes a water collection box 5 for collecting water, and the conduit 4 is arranged inside the water collection box 5 . The condensed water in the water collection tank 3 is introduced into the water collection tank 5 through the conduit 4 for collection and utilization. Of course, in other embodiments, the above configuration may not be performed, and the condensed water is collected in other ways, all within the protection scope of the present invention.

In a specific embodiment, in the water collecting heat pipe provided by the present invention, a group of spiral tubes 2 are embedded in the main pipe body 1, and a water collection tank 3 is arranged under the main pipe body 1, and the water collection tank 3 guides the condensed water into the pipe through the conduit 4. In the water collection tank 5, the closing material of the main body 1 and the spiral pipe 2 is a metal material with good thermal conductivity, and the material of the water collection tank 3, the conduit 4 and the water collection tank 5 can be specifically stainless steel.

The part of the main pipe body 1 located in the gap of the spiral pipe 2 forms the rib of the spiral pipe 2. The thermal fluid flows in from the inlet below the main pipe body 1 and flows out from the upper outlet. The length and diameter of the main pipe body 1 can be designed according to the actual engineering. The spiral pipe 2 is filled with refrigerant, and the spiral tube 2 embedded in the main body 1 is affected by the heat flow. After the refrigerant inside is heated and produces a pressure difference, the refrigerant flows from bottom to top, and then cools in the straight pipe away from the round pipe. The refrigerant flows into the spiral tube 2 again from top to bottom, and the refrigerant forms a self-circulation in the spiral tube 2.

The outside of the main body 1 is affected by natural convection, and the temperature of the refrigerant inside the spiral tube 2 is low. When the external air flows through the spiral tube 2, condensed water will be precipitated on the outside of the spiral tube 2, and the condensed water droplets will be guided along the spiral tube 2 into the water collection tank below the heat pipe. 3, the water in the sump 3 is introduced into the sump tank 5 through the conduit 4 for further utilization.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A water-collecting heat pipe, characterized in that it comprises a main pipe body, the side wall of the main pipe body is embedded with a spiral tube, and the spiral tube protrudes from the inner side wall and the outer side wall of the main pipe body respectively, and the spiral tube It is a hollow cavity with a heat exchange working medium inside. 2 . The water collecting heat pipe according to claim 1 , wherein the spiral tube is a closed tube body so that the heat exchange working medium forms a self-circulation therein. 3 . 3. The water-collecting heat pipe according to claim 2, wherein the spiral pipe includes a straight pipe for the return flow of the heat exchange working medium, and the axis of the straight pipe is arranged parallel to the axis of the main pipe body . 4. The water-collecting heat pipe according to any one of claims 1-3, characterized in that, there is a predetermined interval between the pipes of the spiral pipe to form a diaphragm with the main pipe body. 5 . The water collecting heat pipe according to claim 4 , wherein a water collection tank is provided at the bottom of the main pipe body, and a conduit for leading out condensed water is provided in the water collection tank. 6 . 6 . The water collecting heat pipe according to claim 5 , further comprising a water collecting box for collecting water, and the conduit is arranged inside the water collecting box. 7 .