JP5390471B2 - Regenerating apparatus for existing hot spring well and regenerating method thereof - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an existing hot spring well regenerating apparatus and a method for regenerating the existing hot spring well corresponding to the aging of existing casings and sections.

  As shown in FIG. 4, the existing hot spring well has existing casings 11, 12, and 13 made of a plurality of different diameter pipes connected in series through the portions 14 and 15, and hot spring water is connected to the lowermost casing 13. A suction port 16 of A is provided, and a hot water pipe 17 is inserted into the casing 11 from the ground, and a hot water pump 18 is provided at the lower end of the hot water pipe 17.

  Due to aging, the groundwater B may enter the casings 11 and 12 from the casings 11 and 12 and the sections 14 and 15. Then, since the groundwater B mixes with the hot spring water A, the problem that the hot spring temperature falls arises. In this case, it is necessary to re-dig the hot spring well.

  In addition, as a repair method for the casing for deep wells, the leakage preventing material attached to the outer peripheral surface of the expanded rubber element is lowered to the casing leak position in the well, and the expanded rubber element is expanded to bring the leakage preventing material to the casing leak position. A casing patch construction method is known in which after expansion, the expanded rubber element is contracted and pulled up (see, for example, Patent Document 1).

JP 2001-20653 A (page 5-6, FIG. 4)

  The above-mentioned re-digging of the hot spring well has problems that the construction cost is high and the construction period is long. In addition, the casing patch method has a problem that it cannot cope with the intrusion of the groundwater B due to the aging of the sections 14 and 15.

  The present invention has been made in view of the above points, and even when groundwater enters into an existing casing from an existing casing or a section due to aging, the temperature of the hot spring water decreases due to the ingress of groundwater. It is an object of the present invention to provide an existing hot spring well regenerator and a method for regenerating the same that can easily cope with the above.

  According to the first aspect of the present invention, an existing casing made of a plurality of pipes with different diameters is connected via a stepped portion, and an inlet for hot spring water is provided in the lowermost existing casing. A hot spring well regenerator that regenerates an existing hot spring well with a hot water pipe inserted in it and a hot water pump installed at the lower end of this hot water pipe, corresponding to the stage between existing casings A groundwater intrusion prevention casing that is formed in the existing casing and has a lower end opened and is inserted into the existing casing; and an existing casing or groundwater that has entered from the section is an existing casing and a groundwater intrusion prevention casing. It is the regeneration apparatus of the existing hot spring well equipped with the water stop member which interrupts | blocks the channel | path connected to the opening part of the lower end of a groundwater permeation prevention casing through the clearance gap between them.

  According to a second aspect of the present invention, the groundwater ingress prevention casing in the existing hot spring well regenerator according to the first aspect is made of fiberglass.

  According to the third aspect of the present invention, an existing casing made of a plurality of different diameter pipes is connected via a stepped portion, a hot water inlet is provided in the lowermost existing casing, and the casing starts from the ground. A method for regenerating an existing hot spring well in which a hot water pipe is inserted and a hot water pump is provided at the lower end of the hot water pipe. Take out the hot water pump and insert the groundwater infiltration prevention casing in which the connecting part is formed and the lower end is opened in the existing casing, and the existing casing or the drawing part is inserted into the existing casing. The passage where the groundwater that has entered from the existing casing and the groundwater infiltration prevention casing communicates with the opening at the lower end of the groundwater infiltration prevention casing is blocked by the water stop member The water penetration preventing the casing is Ageyu tube and existing springs wells reproducing method of inserting the Ageyu pump.

  According to the first aspect of the present invention, there is provided a groundwater intrusion prevention casing which is provided with a stepped connection portion corresponding to a stepped portion between existing casings and having a lower end opened and inserted into the existing casing, Due to aging, the groundwater that has entered from the casing or the section is blocked by a water blocking member that blocks a passage that communicates with the opening at the lower end of the groundwater ingress prevention casing through a gap between the existing casing and the groundwater ingress prevention casing. Even if groundwater enters into the existing casing from the existing casing or section, it can be prevented from entering the groundwater intrusion prevention casing, so it should be constructed at a lower cost and in a shorter time than conventional re-digging work. Therefore, it is possible to provide an existing hot spring well regenerator that can easily cope with a drop in the temperature of hot spring water due to the ingress of groundwater.

  According to the invention described in claim 2, the groundwater ingress prevention casing made of fiberglass not only has excellent strength, corrosion resistance, and pressure resistance performance, but also has excellent heat retention. In addition to the effect of suppressing, the scale in the hot spring water is difficult to adhere, and therefore has an effect of preventing clogging.

  According to the invention described in claim 3, a groundwater intrusion prevention casing having a stepped connection portion formed corresponding to a stepped portion between existing casings and having an open lower end is inserted into an existing casing, The groundwater that has entered from the casing or the cut-off portion passes through the gap between the existing casing and the groundwater intrusion prevention casing, and the passage that communicates with the opening at the lower end of the groundwater ingress prevention casing is blocked by a water-stopping member. By inserting a hot water pipe and a hot water pump into the casing, even if groundwater enters the existing casing from the existing casing or ripened part due to aging, it prevents the groundwater from entering the casing. As a result, it is cheaper than conventional re-digging work and can be constructed in a short period of time. Reproducing method of the existing hot spring well that it is possible to easily deal with a can provide.

It is sectional drawing which shows one Embodiment of the regeneration apparatus of the existing hot spring well which concerns on this invention. It is sectional drawing which shows the groundwater permeation prevention casing of a regeneration apparatus same as the above. It is sectional drawing which shows the intermediate | middle still water packer attachment structure of a regeneration apparatus same as the above. It is sectional drawing which shows the existing hot spring well.

  Hereinafter, the present invention will be described in detail based on the embodiment shown in FIGS. The same parts as those in the conventional example shown in FIG.

  In FIG. 1, existing casings 11, 12, 13 made of a plurality of different diameter pipes are staged and connected via portions 14, 15, and an inlet 16 for hot spring water A is provided in the lowermost existing casing 13. An existing hot spring well regenerator that regenerates existing hot spring wells is shown. It should be noted that the hot water pipe 17 is inserted from the above-ground part to a depth position similar to the conventional one, and a hot water pump 18 is provided at the lower end of the hot water pipe 17.

  On the ground, an air vent valve 21 and a pressure gauge 22 are provided on the hot water pipe 17, and a hot spring pipe 25 is connected via a check valve 23 and an on-off valve 24. A control panel 26 is connected to the hot water pump 18, and the control panel 26 generally receives a water level detection signal detected by two electrode rods (MA electrodes) to stop the hot water pump 18 and return to operation. And has a function of automatically controlling.

  A stepped portion 14 formed at the upper end portion of the existing casing 12 is fitted to the existing casing 11 in an extendable manner, and is locked by a locking portion 27 provided at the lower end portion of the casing 11. Similarly, a paragraph 15 formed on the upper end of the existing casing 13 is telescopically fitted to the existing casing 12, and is locked by a locking portion 28 provided on the lower end of the casing 12. ing.

  In this regenerator, a fiberglass groundwater intrusion prevention casing 31 is inserted into the existing casings 11, 12, and 13, and a hot water pipe 17 is inserted into the groundwater intrusion prevention casing 31 from above the ground. A hot water pump 18 is provided at the lower end of the pipe 17.

  The groundwater intrusion prevention casing 31 is provided with stepped connection portions 32 and 33 corresponding to the stepped portions 14 and 15 between the existing casings 11, 12 and 13, and an opening 31 a at the lower end.

  Further, an upper paragraph water stop packer 34 as a water stop member is interposed between the paragraph portion 14 located at the upper end of the casing 12 and the paragraph portion connection portion 32 located on the upper side of the groundwater ingress prevention casing 31. In addition, a lower water stop packer 35 serving as a water stop member is interposed between the step 15 located at the upper end of the casing 13 and the lower connection portion 33 located on the lower side of the groundwater ingress prevention casing 31. Has been.

  These upper and lower water-blocking packers 34 and 35 are the same as the existing casings 11 and 12 or the ground water B infiltrated from the dividing portions 14 and 15 and the existing casings 11, 12, and 13. The passage communicating with the opening 31a at the lower end of the groundwater ingress prevention casing 31 through the gap between the ingress prevention casing 31 is blocked.

  As shown in FIG. 2, the groundwater ingress prevention casing 31 is generally called a bell collar having an upper large-diameter mouth portion and a lower small-diameter mouth portion at the lower end portion of the maximum diameter pipe portion 36 made of fiberglass. The upper large-diameter opening portion of the upper reduced connection fitting 37 is screwed, and the upper end portion of the fiberglass middle-stage pipe portion 38 is screwed into the lower small-diameter opening portion of the upper reduced connection fitting 37. The upper large-diameter mouth portion of the lower reduced connection tool 39 having the upper large-diameter mouth portion and the lower small-diameter mouth portion is screwed to the lower end portion of the 38, and the lower small-diameter mouth portion of the lower reduced joint device 39 is made of fiberglass. The upper end part of the minimum diameter pipe part 40 is screwed together, and the maximum diameter pipe part 36, the middle stage diameter pipe part 38, and the minimum diameter pipe part 40 are continuously provided. As shown in FIG. 1, the minimum diameter pipe portion 40 of the groundwater infiltration prevention casing 31 is inserted into the lower part water stop packer 35 and the existing casing 13 at the bottom.

  As shown in FIG. 2, a seal rubber 42 is fitted into the cylindrical portion 41 formed in the lower half portion of the upper reduction connector 37 of the groundwater intrusion prevention casing 31 and is locked by a stopper 43. A seal rubber 45 is fitted into a cylindrical portion 44 formed in the lower half portion of the lower reduced connection tool 39 and is locked by a stopper 46. 1 is formed by the seal rubber 42 fitted to the upper reduction connector 37, and the seal rubber 45 fitted to the lower reduction connector 39 is formed in FIG. The illustrated lower paragraph portion water stoppage packer 35 is formed.

  As shown in FIG. 1, an upper intermediate water stop packer 47 as a water stop member is provided between the uppermost existing casing 11 and the maximum diameter pipe portion 36 of the groundwater intrusion prevention casing 31. Similarly, a lower intermediate water-stopping packer 48 as a water-stopping member is provided between the existing casing 12 at the middle stage and the middle-stage pipe portion 38 of the groundwater intrusion prevention casing 31.

  These upper intermediate water-stopping packer 47 and lower intermediate water-stopping packer 48 are composed of the existing casings 11, 12 or the groundwater B that has entered from the dividing portion 14 between the existing casings 11, 12, 13 and the groundwater intrusion prevention casing 31. The passage communicating with the opening 31a at the lower end of the groundwater intrusion prevention casing 31 through a gap between the upper intermediate water stop packer 47 and the lower intermediate water stop packer 48 is appropriately installed as necessary. Good.

  FIG. 3 shows the details of the mounting structure of the upper intermediate water-stop packer 47 or the lower intermediate water-stop packer 48 with respect to the groundwater ingress prevention casing 31, for example, the reduced connection portion 51 (paragraph connection portion 32 or 33) is screwed together. A wedge 54 having a wedge-shaped cross section is fitted to the base pipe 52 together with the packer rubber 53 (the upper intermediate water stop packer 47 or the lower intermediate water stop packer 48), and the wedge 54 is locked by the lock nut 55 screwed to the base pipe 52. Since the joint pipe 56 is screwed to the wedge 54, the wedge 54 is lowered together with the joint pipe 56 so that the wedge 54 is moved to the inner peripheral surface side of the packer rubber 53. The packer rubber 53 is bulged to the outer peripheral side and can be brought into close contact with the inner peripheral surface of the existing casing 11 or 12.

  Next, a regeneration method for regenerating the existing hot spring well shown in FIG. 4 with the regeneration device shown in FIG. 1 will be described.

  The hot water pipe 17 and the hot water pump 18 are taken out from the existing casing 11 shown in FIG. 4 and the casing state is inspected with a camera or the like in advance. Check the location of the leaking part entering the interior from 14 and 15.

  Further, as shown in FIG. 1, in the existing casings 11, 12, and 13, the stepped connection portions 32 and 33 corresponding to the stepped portions 14 and 15 between the existing casings 11, 12, and 13 are formed. In addition, the lower water inlet packer 34, the lower water stopper packer 35, the upper intermediate water stopper packer 47, the lower intermediate water stopper packer 47, and the lower middle It is inserted together with the still water packer 48, and the upper ends of the existing casing 11 and the groundwater intrusion prevention casing 31 are fixed.

  As a result, the groundwater B that has entered from the existing casings 11, 12 or the submerged portions 14, 15 passes through the gap between the existing casings 11, 12, 13 and the groundwater intrusion prevention casing 31. An upper intermediate water stop packer 47 and a lower intermediate water stop packer installed in accordance with the situation by an upper paragraph water stop packer 34 and a lower paragraph water stop packer 35 in the passage communicating with the opening 31a at the lower end. Shut off by 48.

  Finally, the hot water pipe 17 and the hot water pump 18 are inserted into the groundwater intrusion prevention casing 31 to perform piping and wiring on the ground. The hot water pump 17 and the hot water pump 18 may be reused from the existing casing 11 or may be new depending on the degree of deterioration.

  Next, the function and effect of the embodiment shown in FIG. 1 will be described.

  When the hot water pump 18 submerged in the hot spring water is driven, the hot spring water A sucked into the existing casing 13 at the lowermost part through the suction port 16 passes through the opening 31a of the groundwater intrusion prevention casing 31, and then the groundwater infiltration prevention casing. 31 is sucked into 31 and discharged from the hot water pump 18 to the hot water pipe 17 and supplied to the hot spring piping 25 through the check valve 23 and the open / close valve 24.

  At this time, the possibility that the groundwater B may be sucked into the opening 31a of the groundwater entry prevention casing 31 through the gap between the old casings 11, 12, 13 and the groundwater entry prevention casing 31 is an upper paragraph. Further, the upper water stop packer 34 and the lower intermediate water stop packer 48 installed according to the situation are prevented by the water stop packer 34 and the lower water stop packer 35.

  In particular, the lower paragraph water-stopping packer 35 located at the lowermost part reliably blocks the path through which the groundwater entering from the existing casings 11 and 12 and the paragraph parts 14 and 15 communicates with the opening 31a.

  In this way, in the existing casings 11, 12, 13, the stepped connection portions 32, 33 corresponding to the stepped portions 14, 15 between the existing casings 11, 12, 13 are formed and the lower ends are opened. Groundwater intrusion prevention casing 31 is inserted, and groundwater B that has entered from existing casings 11, 12 or paragraphs 14, 15 passes through the gap between existing casings 11, 12, 13 and groundwater entry prevention casing 31. The passage communicating with the opening 31a at the lower end of the intrusion prevention casing 31 is blocked by the upper paragraph water stop packer 34, the lower paragraph water stop packer 35, the upper intermediate water stop packer 47, and the lower intermediate water stop packer 48. By inserting the hot water pipe 17 and the hot water pump 18 into the groundwater intrusion prevention casing 31, the groundwater B is contained in the existing casings 11 and 12 from the existing casings 11 and 12 and the paragraphs 14 and 15 due to aging. Even if you get into the ground Since it can prevent intrusion into the water intrusion prevention casing 31, it can be constructed in a shorter period of time at a lower cost than conventional re-digging work, and can easily cope with the temperature drop of the hot spring water A due to the ingress of the groundwater B. It is possible to provide a regeneration device and a regeneration method for existing hot spring wells.

  At that time, the fiberglass-made groundwater ingress prevention casing 31 is not only excellent in strength, corrosion resistance, and pressure resistance performance, but also has excellent heat retaining properties, so that the effect of suppressing the temperature drop of the hot spring water A is obtained. In addition, since the scale in the hot spring water A is difficult to adhere, there is an effect of preventing clogging.

  INDUSTRIAL APPLICABILITY The present invention can be used in the manufacturing industry, the sales industry, and the industry using the regeneration method of existing hot spring well regeneration equipment.

A Hot spring water B Ground water
11, 12, 13 Existing casing
14, 15 Paragraph section
16 Hot spring water inlet
17 Hot water pipe
18 Hot water pump
31 Groundwater infiltration prevention casing
32, 33 paragraph and connection
31a opening
34 Upper paragraph and water stop packer as water stop member
35 Lower paragraph water stop packer as water stop member
47 Upper middle water stop packer as a water stop member
48 Lower intermediate water stop packer as a water stop member

Claims (3)

An existing casing made of a plurality of different-diameter pipes is connected through a section, a hot water inlet is provided in the lowermost existing casing, and a hot water pipe is inserted into the casing from the ground. An existing hot spring well regenerator that regenerates an existing hot spring well provided with a hot water pump at the lower end of the hot water pipe,
A groundwater intrusion prevention casing that is formed with a paragraph connection between the existing casing and a corresponding paragraph connection and having a lower end opened and inserted into the existing casing;
A water-stopping member that blocks the passage of groundwater that has entered from an existing casing or a section through the gap between the existing casing and the groundwater ingress prevention casing and communicates with the opening at the lower end of the groundwater ingress prevention casing. Renewal device for existing hot spring wells. The apparatus for regenerating an existing hot spring well according to claim 1, wherein the groundwater infiltration prevention casing is made of fiberglass. An existing casing made of a plurality of different-diameter pipes is connected through a section, a hot water inlet is provided in the lowermost existing casing, and a hot water pipe is inserted into the casing from the ground. A method of regenerating an existing hot spring well that regenerates an existing hot spring well provided with a hot water pump at the lower end of the hot water pipe,
Remove the hot water pipe and hot water pump from the existing casing,
In the existing casing, insert a groundwater intrusion-preventing casing in which a stepped portion corresponding to the stepped portion between the existing casings is formed and the lower end is opened,
The groundwater infiltrated from the existing casing or the submerged portion is blocked by a water-stopping member through the gap between the existing casing and the groundwater intrusion prevention casing and communicated with the opening at the lower end of the groundwater ingress prevention casing,
A method for regenerating an existing hot spring well, characterized in that a hot water pipe and a hot water pump are inserted into the casing for preventing infiltration of groundwater.

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