What Are the Different Types of Duct Support?
Cell biology term refers to the long-distance transport system of water and inorganic salts composed of columnar cells in the xylem of vascular plants. The secondary wall thickness is unevenly thickened, and the end walls are perforated or completely dissolved to form longitudinal continuous channels. It can also refer to industrial pipes and petroleum drilling pipes.
- Chinese name
- catheter
- Foreign name
- vessel
- Category
- Cell biology nouns
- Belongs to
- Transportation System
- Related
- Industrial Conduit and Oil Drilling Conduit
- Constitute
- Columnar cell
- Cell biology term refers to the long-distance transport system of water and inorganic salts composed of columnar cells in the xylem of vascular plants. The secondary wall thickness is unevenly thickened, and the end walls are perforated or completely dissolved to form longitudinal continuous channels. It can also refer to industrial pipes and petroleum drilling pipes.
Catheter
- Vessel A tubular structure that mainly conducts water and inorganic salts in the xylem of the plant. Group of highly specialized tubular dead cells
- Plant duct
- Plant duct
- Catheters and sieve tubes are both the plant's conducting tissue.
- More evolved tree species are generally pore and reticulated ducts; more primitive species are generally ringed and threaded ducts; longer duct molecules have a smaller diameter, and shorter duct molecules have a larger diameter; fiber molecules The length is generally larger than the length of the catheter molecule, and the caliber of the fiber molecule is generally smaller than the caliber of the catheter molecule.
Conduit Industrial Conduit
Catheter definition
- 1 Broadly refers to the pipe used for grooming.
- Industrial Conduit
Catheter specifications
- It is generally convenient for construction personnel to construct. The general length of the duct is 2 meters, 2.5 meters, 2.7 meters, 3 meters, and the bottom pipe is generally 4 meters.
- It is equipped with an adjustment section of 0.5 meters, 1 meter, 1.5 meters,
Catheter model
- (Diameter) 219mm, 250mm, 258mm, 260mm, 270mm, 288mm, 300mm, 325mm, 377mm, 425mm, etc. Among them, the most widely used are 260mm, 300mm, etc.
Catheter structure
- Each section of the catheter is composed of a circular light pipe and a catheter joint.
- The structure of the catheter has several points:
- 1 Each section must be interchangeable
- 2 After docking, it must be vertical,
- 3 After docking, irrigation and pressurization should not leak.
- 4 Must have tensile strength and torque.
- Industrial ducts play a great role in the construction of foundation buildings and are an indispensable tool.
Oil drilling pipe
- A short section of large diameter casing is used in marshland wellsites and other specific environments; its main role is to keep the wellhead open, prevent drilling fluid from rushing out of the surface formation, and transfer the overflowing drilling fluid to the surface.