CN108331973B

CN108331973B - Vertical buried pipe mounting bracket and application method thereof

Info

Publication number: CN108331973B
Application number: CN201810201891.5A
Authority: CN
Inventors: 王恩琦; 吴建华; 张强; 庞鹏程; 李顺利; 赵家福; 孙明勤
Original assignee: Second Exploration Team Of Shandong Coalfield Geology Bureau; Shandong Yateer Group Co ltd
Current assignee: Second Exploration Team Of Shandong Coalfield Geology Bureau; Shandong Yateer Group Co ltd
Priority date: 2018-03-12
Filing date: 2018-03-12
Publication date: 2023-06-30
Anticipated expiration: 2038-03-12
Also published as: CN108331973A

Abstract

The invention discloses a vertical buried pipe mounting bracket and a use method thereof, and relates to the technical field of buried pipe mounting. The invention maximizes the distance between the water supply pipe and the water return pipe of the buried pipe in a limited space, improves the heat exchange efficiency, improves the utilization rate of underground soil and avoids resource waste; the problem of thermal short circuit is effectively solved, and heat loss is reduced; is convenient for assembly and easy for installation.

Description

Vertical buried pipe mounting bracket and application method thereof

Technical Field

The invention relates to the technical field of buried pipe installation, in particular to a vertical buried pipe installation bracket and a use method thereof.

Background

In the installation and construction process of an underground U-shaped buried pipe of a vertical buried pipe ground source heat pump system, how to prevent heat backflow caused by too close distance between water supply and return pipes of the U-shaped pipe, also called as 'thermal short circuit', is always a big problem which puzzles professionals. The reason that the vertical buried pipe generates heat reflux is that the water supply pipe and the water return pipe are arranged side by side and are close together, and due to the fact that the temperatures in the water supply and return pipes are different, the temperature difference between the water supply and return pipes is increased along with the increase of the drilling depth, the influence caused by heat reflux is also increased when other conditions are unchanged, the buried pipe buries depth is generally 40-100m, and the influence caused by the buried pipe buries depth cannot be ignored under the depth. In order to prevent heat backflow caused by too close distance between the branch pipes of the U-shaped pipe, supports such as plastic pipe clamps or plastic short pipes are mostly adopted in the market to prop the two branch pipes open and bind the supports on the branch pipes, and the distance between the supports along the length direction of the pipe is generally 0.5-1.5 times of the caliber of the branch pipes.

For example, the pipe clamps disclosed in chinese patent publication nos. CN104819601A, CN104807253A, CN202691298U, CN200965104Y, 201410222183.1, and CN201696743U can support the water supply pipe and the water return pipe so that a certain distance is maintained between the water supply pipe and the water return pipe. However, the technical scheme of the patent is a mode of fixing in advance, if a larger branch pipe distance is adopted for reducing heat backflow, when the U-shaped pipe is taken down, the wall of the U-shaped pipe made of PE is extremely easy to damage due to the fact that the wall of the U-shaped pipe is moist and rough, the pressure resistance and the service life of the PE pipe are affected, and serious consequences such as water leakage and scrapping of a pipe well of the U-shaped pipe can be caused even when the damage is serious, so that huge economic loss is finally caused.

Therefore, there is an urgent need to develop a device that can expand the space between the water supply pipe and the water return pipe of the buried pipe as much as possible and can facilitate the pipe discharging.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a vertical buried pipe mounting bracket and a using method thereof.

The technical proposal is as follows:

the utility model provides a vertical buried pipe installing support, includes the support, the support outside is equipped with two at least pipe clamps that are used for fixed buried pipe, one side that the pipe clamp is close to the support is equipped with the pipe clamp arm, the pipe clamp arm cover is in the sleeve, the support side is located to the sleeve, the length of pipe clamp arm is greater than telescopic length, the side of support is equipped with the through-hole for pipe clamp arm inserts, be equipped with the contact pin hole on the pipe clamp arm inserts the part of through-hole, be equipped with the contact pin in the contact pin hole, be equipped with the spring in the sleeve, the support is the cylindric.

Wherein, be equipped with first connecting piece on the contact pin. The first connector is preferably a rope.

And a blocking piece is arranged above the contact pin, and the maximum length of the cross section of the blocking piece is larger than that of the cross section of the contact pin hole in the vertical direction of the axis of the contact pin hole, so that the contact pin is prevented from falling.

The needle is characterized in that a plurality of needle arms are arranged below the contact pins, the needle arms are outwards bent to be in a flying claw shape, and the needle arms are elastic pieces.

Wherein, the pipe clamp is annular.

The annular pipe clamp is integrally designed or is formed by encircling a plurality of encircling blocks, and the encircling blocks are fixed through second connecting pieces. The second connecting piece is a bolt or a screw.

Wherein the number of the pipe clamps is two.

Wherein the number of the pipe clamps is four.

The application method of the vertical buried pipe installing support comprises the following steps:

(1) Clamping the buried pipe by using a pipe clamp, inserting a pipe clamp arm into a through hole of the bracket, sleeving the pipe clamp arm into a sleeve of the bracket, and enabling the spring to be in a compressed state;

(2) The contact pin provided with the first connecting piece is inserted into the contact pin hole of the pipe clamp arm from top to bottom, and after the contact pin passes through the contact pin hole, the pipe clamp and the bracket are assembled together, so that the installation and the fixation of the buried pipe are completed;

(3) Placing the buried pipe assembled with the pipe clamp, the support and the contact pin into a well, and after the buried pipe is placed in place, pulling the first connecting piece upwards to enable the contact pin to be pulled out, expanding a spring in the sleeve, pushing the pipe clamp to the edge of the well wall by the spring, and enabling the pipe clamp arm to enter the sleeve of the support so that the buried pipe and the well wall are close together. The space between the water supply pipe and the water return pipe of the buried pipe is maximized in a limited space, so that the heat efficiency is improved, the utilization rate of underground soil is improved, and the resource waste is avoided.

The invention has the beneficial effects that:

1. the invention makes the space between the water supply pipe and the water return pipe of the buried pipe in the underground part of the ground source heat pump system to be the largest in the limited space, effectively solves the problem of thermal short circuit, reduces heat loss, improves the heat exchange efficiency, improves the utilization rate of underground soil and avoids resource waste; the pipe can be conveniently put down, the problems that the pipe wall is damaged, the service life and the pressure resistance of the buried pipe are influenced, and even water leakage is caused by pipe down are avoided; is convenient for assembly and easy for installation.

2. The first connecting piece is arranged on the contact pin, so that the contact pin can be conveniently taken out; especially under the condition that a plurality of vertical buried pipe installing supports are installed on the buried pipe, a plurality of contact pins on the same vertical direction can be connected in series by a first connecting piece, the first connecting piece is pulled upwards, a plurality of contact pins arranged on the first connecting piece can be sequentially pulled out from top to bottom, and the vertical buried pipe installing support is convenient to use and high in working efficiency.

3. The blocking piece is arranged above the contact pin, so that the contact pin can be prevented from falling down when the contact pin is inserted, and the effect of fixing the contact pin on the contact pin hole is achieved.

4. When the buried pipe and the vertical buried pipe mounting bracket are placed in the ground drilling hole, the problem of upward movement of the contact pin can occur due to overlong underground drilling hole and friction in the placing process, a plurality of elastic needle arms are arranged below the contact pin, the contact pin can be opened after the contact pin is inserted into the contact pin hole, and the limiting effect on the contact pin is further achieved, so that the contact pin is fixed on the contact pin hole.

5. The pipe clamp is arranged in an annular shape, and the pipe clamp has stronger adaptability because most of buried pipes in the current market are cylindrical pipelines.

6. The pipe clamp enclosed by the surrounding blocks is arranged, the surrounding blocks are fixed through the clamping pieces, the pipe clamp can be suitable for buried pipes of various sizes, and the pipe clamp is wider in application range, simple, convenient and flexible.

7. Two pipe clamps are arranged, so that the pipe clamp can be suitable for single U-shaped buried pipes.

8. Four pipe clamps are arranged, so that the pipe clamp is applicable to double U-shaped buried pipes.

Drawings

FIG. 1 is a schematic illustration of an embodiment 1 pin insertion state of a vertical borehole installation rack;

FIG. 2 is a schematic illustration of an embodiment 1 pin extraction of a vertical borehole installation rack;

FIG. 3 is a schematic view showing the insertion of a pin of embodiment 2 of a vertical borehole installation rack;

FIG. 4 is a schematic illustration of an embodiment 2 pin extraction of a vertical borehole installation rack;

fig. 5 is a schematic view of a pin structure of a vertical borehole installation rack.

Reference numerals: 1-sleeve, 2-support, 3-through hole, 4-contact pin hole, 5-pipe clamp arm, 6-spring, 7-bolt, 8-semicircle ring, 9-wall of a well, 10-contact pin, 11-pinhole, 12-needle arm, 13-rope, 14-barrier.

Detailed Description

The invention is further illustrated in the following figures and examples.

Example 1:

as shown in fig. 1 and 2, a vertical buried pipe installing support comprises a support 2, the support 2 is cylindrical, a cylindrical inner cavity is used for putting a recharging pipe filled with backfilling materials into a well, and is also used for providing a space for inserting and extracting a contact pin 10, two pipe clamps used for fixing a single U-shaped buried pipe are arranged on the outer side of the support 2, one side, close to the support 2, of each pipe clamp is provided with a pipe clamp arm 5, each pipe clamp arm 5 is sleeved in a sleeve 1, the sleeve 1 is arranged on the side face of the support 2, the length of each pipe clamp arm 5 is greater than that of the sleeve 1, a through hole 3 is formed in the side face of the support 2 and used for inserting the pipe clamp arm 5, a contact pin hole 4 is formed in a part, inserted into the through hole 3, of each contact pin hole 4 is used for inserting and extracting the contact pin 10, a contact pin 10 is arranged in each contact pin hole 4, a spring 6 is arranged in the sleeve 1, one end of each spring 6 is fixed on the support 2, and each spring 6 is used for ejecting the pipe clamp to a well wall 9.

The pipe clamp is annular, the annular pipe clamp is formed by two surrounding blocks in a surrounding mode, and the surrounding blocks are fixed through a second connecting piece. The surrounding block is a semicircular ring 8, the pipe clamp is formed by splicing and surrounding two semicircular rings 8, a bolt 7 is arranged at the splicing position of the two semicircular rings 8, the bolt 7 is a second connecting piece, and the bolt 7 is used for fastening the pipe clamp when the pipe clamp clamps the buried pipe branch pipe.

Alternatively, the tube clamp is of unitary design.

Wherein, the pin 10 is provided with a first connector. The first connection is preferably a rope 13.

Wherein, a blocking member 14 is arranged above the pin 10, and the maximum length of the cross section of the blocking member is larger than the maximum length of the cross section of the pin hole 4 in the vertical direction of the axis of the pin hole 4, so as to prevent the pin 10 from falling.

Wherein, a plurality of needle arms 12 are arranged below the contact pin 10, the needle arms 12 are outwards bent to be in a flying claw shape, and the needle arms 10 are elastic pieces. The elastic member is made of elastic material, so that when the pin 10 is drawn out from the pin hole 4, the pin arm 12 is retracted, and after the pin 10 is inserted into the pin hole 4, the pin arm 12 is opened to prevent the pin 10 from moving upwards and falling out from the pin hole 4.

Preferably, as shown in fig. 5, the blocking member 14 and the pin 10 are both cylindrical, so that the maximum length of the cross section of the blocking member 14 is the diameter length, the maximum length of the cross section of the pin hole 4 is the diameter length, the diameter length of the blocking member 14 is greater than the diameter length of the pin hole 4, the blocking member 14 is provided with a pin hole 11, and the rope 13 passes through the pin hole 11. The number of the needle arms 12 is two, the needle arms 12 are unfolded outwards, each needle arm 12 is arc-shaped, and when the contact pin 10 is inserted into the contact pin hole 4, the contact pin 10 and the needle arms 12 form a herringbone shape.

The stop 14, pin 10 and arm 12 may also be of unitary design.

The pipe clamp and the bracket 2 are made of polytetrafluoroethylene plastic or polypropylene plastic, and the polytetrafluoroethylene plastic or the polypropylene plastic has excellent corrosion resistance. The pin 10 and the pin arm 12 are made of spring steel, which has excellent toughness.

When the vertical buried pipe is used, as shown in fig. 1, the single U-shaped buried pipe is clamped by the pipe clamp, the pipe clamp arm 5 is sleeved in the sleeve 1 of the bracket 2, at the moment, the pipe clamp arm 5 is inserted into the through hole 3 of the bracket 2, the spring 6 is in a compressed state, the contact pin 10 tied with the rope 13 in advance is inserted into the contact pin hole 4 of the pipe clamp arm 5 from top to bottom, after the contact pin 10 passes through the contact pin hole 4, the contact pin arm 12 is unfolded, because the maximum length of the cross section of the blocking piece is larger than the maximum length of the cross section of the contact pin hole 4, the contact pin 10 is prevented from falling, and the pipe clamp and the bracket 2 are assembled together, so that the installation and the fixation of one branch pipe of the single U-shaped buried pipe are completed, and the installation and the fixation of two branch pipes of the single U-shaped buried pipe are completed in the same way. The single U-shaped buried pipe assembled with the pipe clamp, the bracket 2 and the contact pin 10 is slowly put into the well by the well drilling machine, after the single U-shaped buried pipe is put in place, the rope 13 is pulled upwards, the contact pin 10 is elastic, and the needle arm 12 which is opened below slowly returns to the cage until the contact pin 10 is pulled out. After the contact pin 10 is drawn out, as shown in fig. 2, the spring resistance in the pipe clamp disappears, the spring 6 stretches to push the branch pipe to the edge of the well wall 9, the pipe clamp arm 5 enters into the sleeve 1 of the bracket 2, so that each branch pipe of the single U-shaped buried pipe is abutted against the well wall 9, the space between the water supply pipe and the water return pipe is maximized in a limited space, the heat efficiency is improved, the utilization rate of underground soil is improved, and the resource waste is avoided.

In the vertical direction of the buried pipe, a plurality of vertical buried pipe mounting brackets are provided, at this time, the installation mode of the plurality of vertical buried pipe mounting brackets is the same as that when using a vertical buried pipe, the pins in the same vertical direction are all provided with ropes, and preferably, when each pin is used for extracting the pin 10, the pins 10 are sequentially extracted from top to bottom.

Alternatively, a plurality of pins 10 in the same vertical direction may be connected in series by one string 13, the string 13 not passing through the pin hole 4. When the string 13 is pulled up, the pins 10 connected in series to the same string 13 are sequentially pulled out from top to bottom.

Example 2:

as shown in fig. 3 and 4, a vertical buried pipe installing support comprises a support 2, the support 2 is cylindrical, a cylindrical inner cavity is used for enabling a recharging pipe filled with backfill materials to go into a well, four pipe clamps used for fixing double-U-shaped buried pipes are arranged on the outer side of the support 2, pipe clamps are arranged on one side, close to the support 2, of each pipe clamp, pipe clamp arms 5 are sleeved in a sleeve 1, the sleeve 1 is arranged on the side face of the support 2, the length of each pipe clamp arm 5 is greater than that of the sleeve 1, through holes 3 are formed in the side face of the support 2 and used for inserting the pipe clamp arms 5, and pin inserting holes 4 are formed in the portions, inserted into the through holes 3, of the pipe clamp arms 5. The pin hole 4 is used for inserting and extracting the pin 10, the pin 10 is arranged in the pin hole 4, the spring 6 is arranged in the sleeve 1, one end of the spring 6 is fixed on the pipe clamp, and the spring 6 is used for ejecting the pipe clamp to the well wall 9.

The pipe clamp is annular, the annular pipe clamp is formed by two surrounding blocks in a surrounding mode, and the surrounding blocks are fixed through connecting pieces. The surrounding block is a semicircular ring 8, the pipe clamp is formed by splicing and surrounding two semicircular rings 8, a bolt 7 is arranged at the splicing position of the two semicircular rings 8, the bolt 7 is a second connecting piece, and the bolt 7 is used for fastening the pipe clamp when the pipe clamp clamps the buried pipe branch pipe.

Alternatively, the tube clamp is of unitary design.

The stop 14, pin 10 and arm 12 may also be of unitary design.

When a vertical buried pipe is used, as shown in fig. 3, a pipe clamp is used for clamping a double-U-shaped buried pipe, a pipe clamp arm 5 is sleeved in a sleeve 1 of a bracket 2, at the moment, the pipe clamp arm 5 is inserted into a through hole 3 of the bracket 2, a spring 6 is in a compressed state, a contact pin 10 with a rope 13 tied in advance is inserted into a contact pin hole 4 of the pipe clamp arm 5 from top to bottom, after the contact pin 10 passes through the contact pin hole 4, the contact pin arm 12 is unfolded, because the maximum length of the cross section of a blocking piece is larger than the maximum length of the cross section of the contact pin hole 4, the contact pin 10 is prevented from falling, the pipe clamp arm 5 is kept in a state of being inserted into the through hole 3 of the bracket 2, namely, the spring 6 is kept in a compressed state, and the pipe clamp and the bracket 2 are assembled together, so that the installation and the fixation of one branch pipe clamp of the double-U-shaped buried pipe are completed, and the installation and the fixation of two branch pipes of the double-U-shaped buried pipe are completed in the same way. The double-U-shaped buried pipe assembled with the pipe clamp, the bracket 2 and the contact pin 10 is slowly put into the well drilling by the well drilling machine, after the double-U-shaped buried pipe is put in place, the rope 13 is pulled upwards, the contact pin 10 is elastic, and the needle arm 12 which is opened below slowly returns to the cage until the contact pin 10 is pulled out. After the contact pin 10 is drawn out, as shown in fig. 4, the spring resistance inside the pipe clamp disappears, the spring 6 stretches out, the reaction force of the spring 6 pushes the branch pipe to the edge of the well wall 9, the pipe clamp arm 5 enters into the sleeve 1 of the bracket 2, each branch pipe of the double-U-shaped buried pipe is abutted against the well wall 9, the space between the water supply pipe and the water return pipe is maximized in a limited space, the heat efficiency is improved, the utilization rate of underground soil is improved, and the resource waste is avoided.

Claims

1. The utility model provides a vertical buried pipe installing support, includes the support, its characterized in that, the support outside is equipped with two at least pipe clamps that are used for fixed buried pipe, one side that the pipe clamp is close to the support is equipped with the pipe clamp arm, pipe clamp arm cover is in the sleeve, the sleeve is located the support side, pipe clamp arm's length is greater than telescopic length, the side of support is equipped with the through-hole for pipe clamp arm's insertion, be equipped with the contact pin hole on the pipe clamp arm portion of inserting the through-hole, be equipped with the contact pin in the contact pin hole, the support is the cylinder, and the inside cavity of cylinder is arranged in the recharge pipe that will be equipped with backfill material down into the well, be equipped with the spring in the sleeve, the one end of spring is fixed in on the support, the spring is used for popping up the pipe clamp to the wall of a well, a vertical buried pipe installing support's application method, includes the following steps:

(1) Clamping the buried pipe by using a pipe clamp, inserting a pipe clamp arm into a through hole of the bracket, and sleeving the pipe clamp arm into a sleeve of the bracket;

(2) The method comprises the steps that a contact pin provided with a first connecting piece is inserted into a contact pin hole of a pipe clamp arm from top to bottom, and after the first connecting piece does not pass through the contact pin hole, the pipe clamp and a bracket are assembled together to finish the installation and fixation of a buried pipe;

(3) Placing the buried pipe assembled with the pipe clamp, the support and the contact pin into a well, and after the buried pipe is placed in place, pulling the first connecting piece upwards to enable the contact pin to be pulled out, expanding a spring in the sleeve, pushing the pipe clamp to the edge of the well wall by the spring, and enabling the pipe clamp arm to enter the sleeve of the support so that the buried pipe and the well wall are close together.

2. A vertical pipe laying installation support according to claim 1, wherein the pin is provided with a first connector.

3. A vertical buried pipe mounting bracket according to claim 2, wherein a blocking member is provided above the pin, and a maximum length of the blocking member in a cross section of the pin hole is greater than a maximum length of the pin hole in a vertical direction of an axis of the pin hole, for preventing the pin from falling.

4. A vertical pipe laying installation support according to claim 3, wherein a plurality of needle arms are provided below the pins, the needle arms being bent outwardly in a "flying claw" shape, the needle arms being resilient members.

5. A vertical borehole mounting according to claim 1 wherein the pipe clamp is annular.

6. A vertical pipe laying installation support according to claim 5, wherein the annular pipe clamp is of unitary design or is surrounded by a plurality of surrounding blocks, the surrounding blocks being secured therebetween by a second connector.

7. A vertical borehole mounting according to claim 1 wherein the number of pipe clamps is two.

8. A vertical borehole mounting according to claim 1 wherein the number of pipe clamps is four.