GB2142105A - Water supply means - Google Patents

Water supply means Download PDF

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Publication number
GB2142105A
GB2142105A GB08411003A GB8411003A GB2142105A GB 2142105 A GB2142105 A GB 2142105A GB 08411003 A GB08411003 A GB 08411003A GB 8411003 A GB8411003 A GB 8411003A GB 2142105 A GB2142105 A GB 2142105A
Authority
GB
United Kingdom
Prior art keywords
stem
pipe
header
nipple
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08411003A
Other versions
GB2142105B (en
GB8411003D0 (en
Inventor
Peter Charles Richmond Dewar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPRAYTEC ENGINEERING Ltd
Original Assignee
SPRAYTEC ENGINEERING Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB838317322A external-priority patent/GB8317322D0/en
Application filed by SPRAYTEC ENGINEERING Ltd filed Critical SPRAYTEC ENGINEERING Ltd
Priority to GB08411003A priority Critical patent/GB2142105B/en
Publication of GB8411003D0 publication Critical patent/GB8411003D0/en
Publication of GB2142105A publication Critical patent/GB2142105A/en
Application granted granted Critical
Publication of GB2142105B publication Critical patent/GB2142105B/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/658—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits the spraying apparatus or its outlet axis being perpendicular to the flow conduit

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)

Abstract

Water supply means such as fire fighting sprinklers dust suppression systems or spray headers for roll cooling in the ferrous or non-ferrous industries comprises a header 1 to which is secured at least one outlet nipple 4, having a body or stem extending over substantially the full height of the header, and being provided with inlet means communicating with a through bore 9 in the body or stem, said inlet means being located at or towards the end of the body or stem remote from the nipple. This construction avoids extensive hammering and reduces the likelihood of debris being carried down the body or stem and blocking the nipple. <IMAGE>

Description

SPECIFICATION Water supply means This invention relates to water supply means and is particularly, but not necessarily exclusively concerned with water supply means where water is supplied through a header pipe to an outlet nipple on which a spray nozzle is mounted, as and when required.
There are numerous applications where header pipes are strategically located and provided with an appropriate number of outlet nipples, to which a suitable spray nozzle is secured. Thus, there are fire fighting sprinkler systems, and in industrial applications, dust suppression systems and cooling systems in the ferrous and non-ferrous industries.
Ordinarily, a nipple is secured to a header pipe by, e.g., welding, with the bore of the nipple aligned with an outlet hole from the pipe. Thus, prior to the onset of the supply of water, the header pipe is empty, and after the cessation of the supply of water, the header pipe is emptied by virtue of the water draining through the outlet nipples. Therefore on each occasion that the system is activated, there is considerable "hammering" caused by the back pressure of air as the system fills with water and perhaps more importantly, the scale or other debris in the header pipe can be carried into an outlet hole and block the bore in the outlet nipple.
The object of the present invention is to provide water supply means that avoid the problems refer red to above.
According to the present invention, water supply means comprises a header to which is secured at least one outlet nipple, said nipple having a body or stem extending over substantially the full height of the header, and being provided with inlet means communicating with a through bore in the body or stem, said inlet means being located at or towards the end of the body or stem remote from the nipple.
Thus, when the header is a pipe, the body or stem extends diametrically across the pipe such that its innermost end lies in close proximity to the top dead centre of the inner wall of the pipe. Whilst the body or stem may simply have an open end communicat ing with the interior of the pipe, it is preferred to provide a body or stem with a closed innermost end and to have a transverse hole through the body or stem towards its innermost end, the axis of which is parallel to the axis of the bore of the header pipe.
On first installation of a header with its appropriate number of outlet nipples, there is on the first use of the system, e.g., for test, the possibility of "hammer ing" as is the case with conventional systems.
However following the cessation of first use, the header pipe does not drain completely, but only to a level in line with the bottom of the access hole leading to the bore through the body or stem. In this way the air content with the header is kept to an absolute minimum and whereby on the next and all subsequent uses of the system, "hammering" is substantially eliminated.
Another advantage is that by maintaining the entrance to the bore towards the top of the header pipe any scale or other debris which would settle in the body of the header is prevented to a substantial degree from entering the bore in the body or stem during use of the system with the consequent considerable reduction in the possibility of the nipple being blocked.
One embodiment of the invention will now be described by way of example, with reference to the accompanying drawing which is a vertical section through a header pipe at the position of an outlet nipple.
In the drawing, a header pipe 1 of circular section has an outlet hole 2 at its bottom dead centre, through which passes the body or stem 3 of a nipple 4. The body or stem is secured to the pipe 1 e.g. by welding.
The body or stem 3 has a closed end 5 and is hollow along its length, its length being such that with the closed end 5 in close proximity to the inner wall of the pipe at its top dead centre, a screwed end section 6 of the body or stem lies clear of the outer wall of the pipe, and to which is secured a spray nozzle 7 by a threaded end cap 8.
Towards its upper end, the body or stem has a through-hole 9, the axis of which is aligned with the axis of the pipe 1, and whereby the interior of the pipe 1 is in communication with the interior of the hollow body or stem 3.
Thus, after first installation, and with the system empty, the header pipe is filled with water up to the level of the bottom of the hole 9. During filling a degree of hammering may be experienced, but any debris in the pipe 1 is prevented from reaching and possibly blocking the outlet from the spray nozzle 7.
When the system is activated, because of the very low volume of air in the system, it is completely filled in the substantial absence of hammering, and water is caused to pass through the hollow body or stem to the nozzle. Again any debris, scale or the like lying in the pipe 1 is prevented from reaching the nozzle 7.
At the cessation of operation, water continues to drain through the hollow body or stem 3 until the water level reaches the bottom of the hole 9 in the body or stem, and when the system remains primed for the next operation. Another advantage is that the drainage of water after the operation has ceased is with a considerable reduction in both time and volume, with consequent major reduction of dripping of water in an area where it may not be required after the operation has ceased.
1. Water supply means comprising a header to which is secured at least one outlet nipple, said nipple having a body or stem extending over substantially the full height of the header, and being provided with inlet means communicating with a through bore in the body or stem, said inlet means being located at or towards the end of the body or stem remote from the nipple.
2. Water supply means as in Claim 1, wherein the header is a pipe and the body or stem extends diametrically across the pipe such that its innermost end lies in close proximity to the top dead centre of
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Water supply means This invention relates to water supply means and is particularly, but not necessarily exclusively concerned with water supply means where water is supplied through a header pipe to an outlet nipple on which a spray nozzle is mounted, as and when required. There are numerous applications where header pipes are strategically located and provided with an appropriate number of outlet nipples, to which a suitable spray nozzle is secured. Thus, there are fire fighting sprinkler systems, and in industrial applications, dust suppression systems and cooling systems in the ferrous and non-ferrous industries. Ordinarily, a nipple is secured to a header pipe by, e.g., welding, with the bore of the nipple aligned with an outlet hole from the pipe. Thus, prior to the onset of the supply of water, the header pipe is empty, and after the cessation of the supply of water, the header pipe is emptied by virtue of the water draining through the outlet nipples. Therefore on each occasion that the system is activated, there is considerable "hammering" caused by the back pressure of air as the system fills with water and perhaps more importantly, the scale or other debris in the header pipe can be carried into an outlet hole and block the bore in the outlet nipple. The object of the present invention is to provide water supply means that avoid the problems refer red to above. According to the present invention, water supply means comprises a header to which is secured at least one outlet nipple, said nipple having a body or stem extending over substantially the full height of the header, and being provided with inlet means communicating with a through bore in the body or stem, said inlet means being located at or towards the end of the body or stem remote from the nipple. Thus, when the header is a pipe, the body or stem extends diametrically across the pipe such that its innermost end lies in close proximity to the top dead centre of the inner wall of the pipe. Whilst the body or stem may simply have an open end communicat ing with the interior of the pipe, it is preferred to provide a body or stem with a closed innermost end and to have a transverse hole through the body or stem towards its innermost end, the axis of which is parallel to the axis of the bore of the header pipe. On first installation of a header with its appropriate number of outlet nipples, there is on the first use of the system, e.g., for test, the possibility of "hammer ing" as is the case with conventional systems. However following the cessation of first use, the header pipe does not drain completely, but only to a level in line with the bottom of the access hole leading to the bore through the body or stem. In this way the air content with the header is kept to an absolute minimum and whereby on the next and all subsequent uses of the system, "hammering" is substantially eliminated. Another advantage is that by maintaining the entrance to the bore towards the top of the header pipe any scale or other debris which would settle in the body of the header is prevented to a substantial degree from entering the bore in the body or stem during use of the system with the consequent considerable reduction in the possibility of the nipple being blocked. One embodiment of the invention will now be described by way of example, with reference to the accompanying drawing which is a vertical section through a header pipe at the position of an outlet nipple. In the drawing, a header pipe 1 of circular section has an outlet hole 2 at its bottom dead centre, through which passes the body or stem 3 of a nipple 4. The body or stem is secured to the pipe 1 e.g. by welding. The body or stem 3 has a closed end 5 and is hollow along its length, its length being such that with the closed end 5 in close proximity to the inner wall of the pipe at its top dead centre, a screwed end section 6 of the body or stem lies clear of the outer wall of the pipe, and to which is secured a spray nozzle 7 by a threaded end cap 8. Towards its upper end, the body or stem has a through-hole 9, the axis of which is aligned with the axis of the pipe 1, and whereby the interior of the pipe 1 is in communication with the interior of the hollow body or stem 3. Thus, after first installation, and with the system empty, the header pipe is filled with water up to the level of the bottom of the hole 9. During filling a degree of hammering may be experienced, but any debris in the pipe 1 is prevented from reaching and possibly blocking the outlet from the spray nozzle 7. When the system is activated, because of the very low volume of air in the system, it is completely filled in the substantial absence of hammering, and water is caused to pass through the hollow body or stem to the nozzle. Again any debris, scale or the like lying in the pipe 1 is prevented from reaching the nozzle 7. At the cessation of operation, water continues to drain through the hollow body or stem 3 until the water level reaches the bottom of the hole 9 in the body or stem, and when the system remains primed for the next operation. Another advantage is that the drainage of water after the operation has ceased is with a considerable reduction in both time and volume, with consequent major reduction of dripping of water in an area where it may not be required after the operation has ceased. CLAIMS
1. Water supply means comprising a header to which is secured at least one outlet nipple, said nipple having a body or stem extending over substantially the full height of the header, and being provided with inlet means communicating with a through bore in the body or stem, said inlet means being located at or towards the end of the body or stem remote from the nipple.
2. Water supply means as in Claim 1, wherein the header is a pipe and the body or stem extends diametrically across the pipe such that its innermost end lies in close proximity to the top dead centre of the inner wall of the pipe.
3. Water supply means as in Claim 1 or Claim 2, wherein the body or stem has a closed innermost end, there being a transverse hole through the body or stem towards it innermost end.
4. Water supply means substantially as hereinbefore described with reference to the accompanying drawing.
GB08411003A 1983-06-25 1984-04-30 Water supply means Expired GB2142105B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08411003A GB2142105B (en) 1983-06-25 1984-04-30 Water supply means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838317322A GB8317322D0 (en) 1983-06-25 1983-06-25 Water supply means
GB08411003A GB2142105B (en) 1983-06-25 1984-04-30 Water supply means

Publications (3)

Publication Number Publication Date
GB8411003D0 GB8411003D0 (en) 1984-06-06
GB2142105A true GB2142105A (en) 1985-01-09
GB2142105B GB2142105B (en) 1986-06-04

Family

ID=26286478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08411003A Expired GB2142105B (en) 1983-06-25 1984-04-30 Water supply means

Country Status (1)

Country Link
GB (1) GB2142105B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9833804B2 (en) 2012-07-09 2017-12-05 Rig Deluge Global Limited Nozzle apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9833804B2 (en) 2012-07-09 2017-12-05 Rig Deluge Global Limited Nozzle apparatus
US10690577B2 (en) 2012-07-09 2020-06-23 RigDeluge Ltd. Nozzle system

Also Published As

Publication number Publication date
GB2142105B (en) 1986-06-04
GB8411003D0 (en) 1984-06-06

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PCNP Patent ceased through non-payment of renewal fee