CN210089168U

CN210089168U - Well pipe for ground source heat pump system

Info

Publication number: CN210089168U
Application number: CN201920385477.4U
Authority: CN
Inventors: 张乐平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-02-18
Anticipated expiration: 2029-03-26

Abstract

The utility model discloses a well pipe for a ground source heat pump system, which comprises an outer pipe and an inner pipe arranged inside the outer pipe along the axial direction of the outer pipe, wherein the bottom end of the outer pipe is sealed, a communicating part communicated with the inner pipe is arranged between the outer pipe and the inner pipe, the upper end of the outer pipe is sealed, and an external opening is also arranged on the outer pipe and is arranged at the upper end or the side wall of the outer pipe; the utility model adopts the well pipe form of the outer pipe sleeve inner pipe, and is installed in the well hole with the same specification, compared with the prior U-shaped pipe design, the utility model can greatly prolong the stay time of water in the pipe, thereby correspondingly prolonging the heat exchange time; and the heat exchange area is large, the heat exchange time is long, the heat exchange efficiency can be greatly improved compared with the existing U-shaped pipe, and in addition, the design is easy to install and fix in a well hole, so that the installation cost can be saved, and the installation efficiency is improved.

Description

Well pipe for ground source heat pump system

Technical Field

The utility model relates to a source heat pump equipment technical field, in particular to be used for earth source heat pump system well casing.

Background

At present, the energy problem becomes an important problem of economic development of various countries, the energy consumption of heating and air conditioning in building energy consumption is an important problem in the current life, under the large policy of environmental protection and energy conservation, new energy sources are also vigorously developed and utilized in the heating and ventilation industry, and the ground source heat pump is widely applied in the world due to high efficiency, stability, energy conservation and environmental protection; the underground buried pipe of the ground source heat pump is divided into a horizontal type and a vertical type, wherein the vertical type is used most, and the form of the vertical type underground buried pipe is mainly divided into a single U type and a double U type; the ground source heat pump is matched with well pipes below the vertical shaft, most of the well pipes are U-shaped pipes, the pipe diameters of the U-shaped well pipes are small, the surface areas of the U-shaped well pipes are small, the heat exchange areas are small, the pipe diameters of the U-shaped well pipes are small, the water capacity of the U-shaped well pipes is small, the stay time of water in the well pipes is short, the heat exchange time is short, and the heat exchange efficiency of the U-shaped well pipes is low due to the fact that the heat exchange areas of the U-shaped well.

"a novel earth source heat pump U type pipe" that china utility model CN204757452U disclosed, the announcement date is: 2015.11.11, the utility model relates to a ground source heat pump field, in particular to a novel ground source heat pump U-shaped tube, which is characterized in that the left vertical tube and the right vertical tube of the U-shaped tube are spiral, the lower ends of the left vertical tube and the right vertical tube are connected through a U-shaped bent tube, the bottom end of the U-shaped bent tube is provided with a buffer cavity, the upper end of the buffer cavity is provided with a flow baffle plate, the water outlet of the right vertical tube is provided with a water pump 1, the water pump 1 is connected with a water pump 2 through a water outlet pipe, the water outlet pipe is connected with the water outlet pipe of the right vertical; the utility model can fully exchange the water in the U-shaped pipe with the earth surface, simultaneously ensure less damage to the water pump when pumping water, reduce the energy consumption of the water pump and facilitate the maintenance and replacement of the water pump; the utility model discloses increase the utilization efficiency of the energy, reduced the loss of equipment, be worth promoting.

The "buried pipe structure of ground source heat pump" disclosed in chinese utility model CN207163019U, the announcement date is: 2018.03.30, the utility model provides a ground source heat pump ground buried pipe structure, include: a first vertical hole and a second vertical hole having a certain depth, the first vertical hole and the second vertical hole being arranged in parallel; the communication hole is used for communicating the bottoms of the first vertical hole and the second vertical hole, and the buried pipe sequentially penetrates through the first vertical hole, the second vertical hole and the communication hole; the utility model discloses a ground source heat pump ground pipe laying structure can link up the bottom in two vertical holes, and then places ground source heat pump ground pipe laying for the horizontal part of two side pipes in the vertical part of U type pipe and U type pipe all with soil in close contact with so that give soil heat transfer.

Above patent ground source heat pump system all adopts the design of U type pipe, in the current design the pipe diameter of U type pipe is less, and its water capacity is also less, and the time that water lingers in the well casing is shorter, and the time of heat exchange is also shorter, consequently often can influence ground source heat pump system's heat exchange efficiency, the installation of U type pipe simultaneously and fixed relatively more difficult and complicated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical scheme who takes for solving above-mentioned problem is:

the utility model provides a be used for ground source heat pump system well casing which characterized in that, includes the outer tube and installs the inner tube in the outer tube along the axial of outer tube, the bottom of outer tube is sealed, is equipped with the intercommunication portion that is linked together between outer tube and the inner tube, has still seted up external opening on the outer tube.

Preferably, the communication part is located at the bottom position of the outer tube.

Preferably, the communicating part is a communicating opening which is formed on the inner pipe and communicated with the inside of the outer pipe.

Preferably, the communication port is opened on the outer side wall of the bottom end of the inner tube.

Preferably, the upper end of the outer tube is sealed.

Preferably, the external through opening is formed in the upper end or the side wall of the outer tube.

Preferably, the bottom end of the inner pipe is contacted with the bottom end of the inner part of the outer pipe.

Preferably, the outer pipe is formed by splicing a plurality of sections, and the splicing part is sealed.

The utility model discloses the beneficial effect who has does:

1. the utility model relates to a well pipe for a ground source heat pump system, the heat exchange area of the well pipe of the ground source heat pump system is the surface area of an outer pipe, and the well pipe form of an outer pipe sleeve inner pipe is adopted, and the well pipe is installed in a well hole with the same specification, compared with the design of the existing U-shaped pipe, the design can greatly prolong the stay time of water in the pipe, thereby correspondingly prolonging the heat exchange time; the heat exchange area of the well pipe is large, the heat exchange time is long, and the heat exchange efficiency of the well pipe can be greatly improved compared with that of the existing U-shaped pipe.

2. The utility model discloses current U type pipe relatively is vertical shape well casing, can avoid the installation of U-shaped portion to it is fixed more easily to install in the wellhole, can practice thrift installation cost, improves the installation effectiveness.

Drawings

FIG. 1 is a block diagram of embodiment 1;

fig. 2 is a side-open external port configuration diagram of embodiment 1;

fig. 3 is a structural view of embodiment 2.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Embodiment mode 1:

as shown in fig. 1-2, a well pipe for a ground source heat pump system comprises an outer pipe 1 and an inner pipe 2 arranged in the outer pipe 1, wherein the inner diameter of the outer pipe 1 is far larger than the outer diameter of the inner pipe 2, and the outer pipe is arranged in a well hole with the same specification, compared with the existing U-shaped pipe, the water capacity of the design can be increased by many times, so that the stay time of water in the pipe is greatly prolonged, the heat exchange time is correspondingly prolonged, the heat exchange area of the well pipe is large, the heat exchange time is long, and the heat exchange efficiency of the well pipe is greatly improved; the bottom end 4 of the outer pipe is sealed, the outer pipe 1 is installed underground, and water in the well pipe is guaranteed not to be in contact with soil and underground water outside the well pipe through sealing, so that the water in the outer pipe 1 can absorb energy of the soil and the underground water outside the well pipe through the pipe wall; the inside and the inside of inner tube 2 of outer tube 1 are linked together to the circulation and the energy exchange of completion water have still seted up external port 6 on the outer tube 1, have accomplished the output of energy through the intercommunication external pipe.

In order to fix the inner tube 2 well, the bottom end of the inner tube 2 is arranged in contact with the bottom end of the outer tube 1, so that the outer tube 1 can support the inner tube 2 to a certain extent, and preferably, the inner tube 2 is provided with a communication port 7 communicated with the inside of the outer tube 1; preferably, the communication port 7 is arranged on the outer side wall of the bottom end of the inner tube 2, and the communication port 7 is a rectangular hole formed along the axial direction of the inner tube 2.

According to the actual use condition, common well pipes are buried underground, and the upper end 3 of the outer pipe is sealed; preferably, the outer opening 6 of the outer tube 1 opens at the upper end 3 or the side wall of the outer tube.

The utility model discloses an installation does: in order to install a well pipe of a ground source heat pump system, a well hole is required to be firstly arranged, after the well hole is cut, an outer pipe 1 is firstly arranged, the bottom of the first section of the outer pipe 1 needs to be sealed, the water in the well pipe is ensured not to be contacted with the soil and the underground water outside the well hole, the first section of the outer pipe 1 is sequentially arranged in the well hole, then a second section of the outer pipe 1 is externally connected, the second section of the outer pipe 1 is arranged in the well hole and then is externally connected with a third section of the outer pipe 1, the connection of the multiple sections of the outer pipes 1 is sequentially completed and the pipes are arranged in the well, the connection joints of two adjacent sections of the well pipes are sealed and cannot leak water, in the process of arranging the outer pipe 1, the outer pipe; after the outer pipe 1 is placed into a well hole according to design requirements, the inner pipe 2 is placed into the outer pipe 1, so that the bottom of the inner pipe 2 is in contact with the bottom in the outer pipe 1, the outer pipe 1 plays a certain supporting role for the inner pipe 2, the outer side wall of the bottom end of the inner pipe 2 is provided with a communication port 7, water in the inner pipe 2 is communicated with water in the outer pipe 1 through the communication port 7, therefore, external water energy is circulated between the inner pipe 2 and the outer pipe 1, and the water in the outer pipe 1 can exchange energy with underground soil and underground water through the pipe wall of the outer pipe; after the inner tube 2 is installed, the upper end 3 of the outer tube is sealed, the external through port 6 is arranged at the uppermost end of the outer tube 1, exchanged energy can be conveyed to the outside of a ground source heat pump system through the external through port 6, and the upper end of the outer tube 1 is buried underground after connection is completed.

The utility model discloses a use does: during the use, hot (cold) water that produces by the heat pump gets into inner tube 2 through the water inlet 5 of inner tube 2, get into outer tube 1 bottom through inner tube 2 and the intercommunication mouth 7 of the 1 intercommunication portion of outer tube, get into outer tube 1 bottom after, the heat (cold) energy of the interior aquatic of outer tube 1 carries out the heat exchange with underground soil and groundwater through the pipe wall of outer tube 1, water is in outer tube 1 to the lower and upward movement, take the heat pump through the mode of outer takeover with cold (hot) energy through external connection 6, thereby realize the exchange of energy.

The hot (cold) water produced by the heat pump can also enter the outer tube 1 through the external opening 6, then enters the bottom of the inner tube 2 through the communicating opening 7 of the communicating part of the inner tube 2 and the outer tube 1, and after entering the bottom of the inner tube 2, the cold (hot) energy is brought to the heat pump through the circulating mode through the inner tube 2, thereby realizing the energy exchange.

Embodiment mode 2:

as shown in fig. 3, embodiment 1 is different in that the upper end of the outer pipe 1 is not closed in the case where a hole is formed in a warm climate area or a room.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning unless otherwise stated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a be used for ground source heat pump system well casing which characterized in that, includes the outer tube and installs the inner tube in the outer tube along the axial of outer tube, the bottom of outer tube is sealed, is equipped with the intercommunication portion that is linked together between outer tube and the inner tube, has still seted up external opening on the outer tube.

2. A well pipe for ground source heat pump system according to claim 1, wherein the communication part is located at the bottom position of the outer pipe.

3. The well pipe for the ground source heat pump system as claimed in claim 1 or 2, wherein the communicating portion is a communicating opening formed on the inner pipe and communicating with the inside of the outer pipe.

4. The well pipe for a ground source heat pump system as claimed in claim 3, wherein the communication port is opened at the outer sidewall of the bottom end of the inner pipe.

5. The ground source heat pump system well pipe as claimed in claim 4, wherein the communication port is a rectangular port opened along the axial direction of the inner pipe.

6. A well tubing for a ground source heat pump system according to claim 1, wherein the outer tube is sealed at its upper end.

7. A well pipe for a ground source heat pump system according to claim 1 or 6, wherein the external port is opened at the upper end or the side wall of the outer pipe.

8. A well tubing for a ground source heat pump system as claimed in claim 1, wherein the bottom end of said inner tubing is disposed in contact with the inner bottom end of the outer tubing.

9. The ground source heat pump system well casing of claim 1, wherein the outer pipe is made of multiple segments that are joined together to form a sealed joint.