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CN-121977894-A - Installation device of long-distance PVC air sampling pipe

CN121977894ACN 121977894 ACN121977894 ACN 121977894ACN-121977894-A

Abstract

The invention provides a device for installing a long-distance PVC air sampling pipe, which comprises smoke monitoring equipment, a plurality of first pipe clamps and a plurality of second pipe clamps, wherein the smoke monitoring equipment is arranged on the front side wall of a logistics warehouse, the left side wall and the right side wall of the smoke monitoring equipment are respectively connected with transverse connecting pipes, the upper parts of the transverse connecting pipes are connected with a plurality of parallel vertical connecting pipes, the lower parts of the ceilings of the logistics warehouse are provided with a plurality of air sampling pipes which are respectively connected with the upper ends of the vertical connecting pipes in the front-back transverse direction, the bottom wall is provided with a plurality of air pumping holes which are respectively arranged in the front-back parallel direction, the upper parts of the air sampling pipes are provided with steel wires which are respectively fixedly connected with the front side wall and the rear side wall of the logistics warehouse, the first pipe clamps are arranged in the front-back direction, the air sampling pipes and the steel wires are fixedly arranged on the ceilings of the logistics warehouse after being clamped, and the steel wires limit the first pipe clamps in the left-right transverse direction.

Inventors

  • Liao Xiangrui
  • ZENG YANLI
  • Bi Yunqiu

Assignees

  • 广州万安建设监理有限公司

Dates

Publication Date
20260505
Application Date
20260130

Claims (7)

  1. 1. The device for installing the long-distance PVC air sampling pipe comprises smoke monitoring equipment (6), wherein the smoke monitoring equipment is arranged on a front side wall (1) of a logistics warehouse, a transverse connecting pipe (5) is respectively connected with the left side wall and the right side wall of the smoke monitoring equipment (6), a plurality of parallel vertical connecting pipes (7) are connected to the upper portion of the transverse connecting pipe (5), a plurality of air sampling pipes (3) are arranged below a logistics warehouse ceiling (2) in parallel, the front ends of the air sampling pipes (3) are respectively connected with the upper ends of the plurality of vertical connecting pipes (7), a plurality of air pumping holes are formed in the bottom wall in parallel, a front-rear transverse steel wire (4) is arranged above the air sampling pipes (3), two ends of the steel wire (4) are respectively fixedly connected to the front side wall and the rear side wall (1) of the logistics warehouse, the device comprises a plurality of first pipe clamps (30) which are arranged in front-rear, the air sampling pipes (3) and the steel wire (4) are fixedly arranged on the logistics warehouse ceiling (2) after being hooped, and the steel wire (4) carries out left-right transverse limiting on the first pipe clamps (30).
  2. 2. The mounting device according to claim 1, comprising a plurality of second pipe clamps (21) which are arranged in tandem with the plurality of first pipe clamps (30), wherein the top ends of the second pipe clamps (21) are provided with left and right transverse hinge shafts (22), the transverse hinge shafts (22) are movably arranged on a logistics warehouse ceiling (2), and the parts, between the adjacent two first pipe clamps (30), of the air sampling pipe (3) are arched upwards by thermal expansion, so that the second pipe clamps (21) between the two first pipe clamps (30) are pushed to rotate upwards around the transverse hinge shafts (22).
  3. 3. The mounting device according to claim 2, wherein the first tube clamp (30) and the second tube clamp (21) are both higher than the width, so that a gap is left between the top wall of the air sampling tube (3) and the bottom wall of the steel wire (4) for the part of the air sampling tube (3) located in the first tube clamp (30) to slightly lift up under thermal expansion.
  4. 4. The mounting device according to claim 3, wherein two limiting columns (32) are fixedly arranged on the inner top wall of each of the first pipe clamp (30) and the second pipe clamp (21), the two limiting columns (32) are positioned on the left side and the right side of the steel wire (4) to transversely limit the steel wire, the lower ends of the two limiting columns (32) are gradually closed and pass through the bottom wall of the steel wire (4) downwards, and the distance between the lower ends of the two limiting columns (32) is smaller than the diameter of the steel wire (4).
  5. 5. The mounting device according to claim 4, wherein the two limiting columns (32) in the first pipe clamp (30) are internally provided with springs along the axial direction of the two limiting columns, the lower end of each limiting column (32) is provided with a rubber telescopic rod (33), the upper end of each rubber telescopic rod (33) is connected with the spring, and the lower end of each rubber telescopic rod is propped against the top wall of the air sampling pipe (3) so as to buffer the air sampling pipe (3) when the part of the air sampling pipe (3) located in the first pipe clamp (30) is slightly lifted up by thermal expansion.
  6. 6. A mounting arrangement according to claim 3, characterized in that the air sampling tube (3) is provided at a location in the first tube clamp (30) with a top wall which is thinner than the bottom wall, so that the front section of the location is bent obliquely downwards backwards and the rear section of the location is bent obliquely upwards backwards.
  7. 7. The mounting device as claimed in claim 4, characterized in that a U-shaped rubber stopper (25) is arranged below the two limiting posts (32) in the second pipe clamp (21), two ends of the upper part of the rubber stopper (25) are respectively arranged on the bottom walls of the two limiting posts (32), and the bottom wall of the rubber stopper (25) buffers the air sampling pipe (3) when the part of the air sampling pipe (3) located in the second pipe clamp (21) has a tendency of slightly lifting due to thermal expansion.

Description

Installation device of long-distance PVC air sampling pipe Technical Field The invention relates to the field of extremely early air sampling alarm systems, in particular to a device for installing a long-distance PVC air sampling tube in the system. Background An extremely early air sampling alarm system is required to be arranged in the shipping container logistics warehouse to prevent fire. The early-stage air sampling alarm system is shown in fig. 1, and comprises a smoke monitoring device 6 which is arranged on a front side wall 1 of a logistics warehouse, wherein a transverse connecting pipe 5 is respectively connected with the left side wall and the right side wall of the smoke monitoring device 6, a plurality of parallel vertical connecting pipes 7 are connected to the upper part of the transverse connecting pipe 5, an air sampling pipe 3 is connected to the vertical connecting pipes 7 in a matched mode, the front end of the air sampling pipe 3 is connected with the upper end of the vertical connecting pipes 7, the rear end of the air sampling pipe 3 is close to the rear side wall 1 of the logistics warehouse, and a redundant space is reserved between the rear side wall 1 of the logistics warehouse and the left side wall. Each air sampling tube 3 is provided with a plurality of parallel traditional tube clamps 10, the ceiling 2 is pre-embedded with a plurality of plastic expansion sleeves, the top of each traditional tube clamp 10 is provided with a hole, a vertical screw is sleeved in the hole, and the vertical screw is installed in the corresponding plastic expansion sleeve from bottom to top. The bottom walls of the air sampling tubes 3 are provided with air extraction holes at a certain distance, and the air sampling tubes 3 are arranged at intervals so that the air extraction holes are basically uniformly distributed on the ceiling 2. The smoke monitoring device 6 is internally provided with an air pump (not shown in the figure), air in the logistics warehouse is driven by the air pump to be sucked into the air sampling pipe 3 through the air pumping holes, and then is sucked into the smoke monitoring device 6 through the air sampling pipe 3, and the smoke monitoring device 6 detects the smoke concentration in the air to judge whether fire occurs in the logistics warehouse. In areas where the temperature difference is large, the air sampling tube 3 expands by being heated when the temperature rises, and protrudes rearward to be accommodated in the redundant space. However, because the distances between the front side wall 1 and the rear side wall 1 of the ceiling of the logistics warehouse are long, the air sampling tube 3 is correspondingly long, the air sampling tube 3 stretches out a long distance after being heated and expanded, and as shown in fig. 2, the air sampling tube 3 still has an elongation trend after being elongated to be blocked by the rear side wall 1 of the logistics warehouse at the rear end, the elongation trend can enable the air sampling tube 3 to generate a lateral arch side bending trend, the arch trend can apply lateral thrust to the traditional tube clamp 10 together with the lower part of the vertical screw, and the whole vertical screw is easy to rotate to be inclined around the bottom edge of the plastic expansion sleeve, so that the traditional tube clamp 10 is driven to be inclined together. In particular, the central portion of the air sampling tube 3 has the strongest tendency to arch, so that the air sampling tube 3 is arched into a large arch as shown in fig. 2 by pushing the corresponding conventional tube clamp 10 to the maximum deflection degree, so that the air extraction holes in the central portion of the bottom wall of the air sampling tube 3 are greatly and transversely offset, and are not uniformly distributed on the ceiling 2 any more, thereby greatly affecting the accuracy of air extraction and sampling. Disclosure of Invention The invention aims to provide a device for installing a long-distance PVC air sampling tube, wherein the air suction hole at the bottom wall of the air sampling tube is not easy to transversely deviate by a large margin. A mounting device of a long-distance PVC air sampling tube comprises smoke monitoring equipment, a plurality of first tube clamps and a plurality of second tube clamps, wherein the smoke monitoring equipment is arranged on a front side wall of a logistics warehouse, a left side wall and a right side wall of the smoke monitoring equipment are respectively connected with transverse connecting tubes, a plurality of parallel air sampling tubes are arranged below a ceiling of the logistics warehouse, the front ends of the air sampling tubes are respectively connected with the upper ends of the plurality of vertical connecting tubes in a front-back transverse mode, a plurality of air pumping holes are formed in a bottom wall of the air sampling tubes in a front-back parallel mode, steel wires in a front-back transv