the structure of boiler manhole

Industrial boilers

Product thermal capacity: 4-35 t/h

Working pressure: 1.0-2.5 MPA

Outlet temperature: 184-350 ℃

Available fuel: natural gas, coke oven gas, bio-gas,liquid propane gas, diesel, heavy oil, light oil, crude oil

Available industries: Petroleum, chemical, chemical fiber, pharmaceutical, textile printing and dyeing, building materials, wood processing, vegetable oil processing and other industries

  • Product introduction
  • Technical advantages

the structure of boiler manhole have a three-pass round coil structure. A conical coil is used for the effective protection of the furnace wall at the boiler end. This product is equipped with an advanced combustion device and is fully automated in operation. After the burner ignites the fuel, flame fills the round coil tubes and transfers heat by radiation through the tube wall (first pass). The high temperature flue gas gathers at the back door and then turns to the convection tubes section (second pass), where heat transfer takes place by convection. The flue gas gradually cools down here and flows to the front door, where it is reversed and goes into the third pass. After that, it enters into the chimney through the economizer and is released into the atmosphere.

the structure of boiler manhole.This type of heater is delivered as a whole, and is installed on site, it only needs to connect thermal gas(oil) piping and electricity to start operation. The heater has four heating areas: furnace radiation heating area, the first convection tube bundle heating area, the second convection tube bundle heating area and economizer (waste heat boiler).

Digitized manufacture
  • The laying-off of steel tube adopts CNC 3D laser cutting machine.
  • The manufacture of round coil tube adopts CNC coil tube automatic production line. Once-forming and no need for plastic .
Full argon arc welding
  • The tube butt adopts argon arc welding technique and the seams will be done x ray real-time imaging, preventing unqualified seams from entering coil production line .
Easy operation
  • Heater is wholly assembled before delivery, it is easy for installation, debugging and operating.
  • Fully automatic operating, burning, liquid level of high level tank, outlet temperature and flow rate are adjusted automatically and self-protected.
  • The inlet and outlet with end flanges and flanged cover structure facilitate the installation and layout of tubeline in boiler house.
Less fuel consumption
  • Internal side adopts good insulation material, outside uses stainless steel plate, which can mostly reduce heat lost and make working environment better.
  • Multilayers closely spaced tube bundle and steel rod is used to seal and fix, completely eradicating short circuit of flue gas.
  • Before delivery, the residue moisture is removed completely, so the system draining period is reduced to 2 days from 12 days.
Safely operation
  • The inner coil tube has bigger flow rate, so it is more stable under high temperature operation.
  • Conical coil effectively protects the furnace wall at the end of heater and burner on the top.
the structure of boiler manhole the structure of boiler manhole the structure of boiler manhole

Manhole | Article about manhole by The Free Dictiona

manhole 1. a shaft with a removable cover that leads down to a sewer or drain 2. a hole, usually with a detachable cover, through which a man can enter a boiler, tank, etc. Manhole a structure in a sewer network used for inspecting, cleaning, and flushing the sewers. The manhole usually consists of a work area and, above it, an entrance area, a hatchway > Get A Quote >

Boiler Glossary: L-O - P C McKenzie Compa

Low-water cutoff – A device to stop the burner on unsafe water conditions in the boiler. Lug – As applied to boiler suspension, a steel eyepiece fitted and riveted or welded to the curvature of a boiler shell or drum and connected by a steel U-bolt or sling rod to overhead steel structure… > Get A Quote >

ASTM Manhole Specifications - National Precast Concret

9/26/2011 · ASTM Manhole Specifications. The emergence of the 1972 Clean Water Act established the basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface waters. Ensuring the separation of human waste from clean drinking water relies on the durability and reliability of > Get A Quote >

US2156166A - Manhole cover - Google Paten

The ends 23 of the yokes bridge the manhole and engage with the face of the boiler. The cover the-n may be drawn securely into place by tightening the nuts 22 which pull the bolts tight andhold the cover and gasket securely in place on the seat 1 in the usual manner. The method of manufacturing my improved manhole cover is as follows. > Get A Quote >

Manhole dictionary definition | manhole defin

manhole definition: an opening, often with a cover, through which a person can enter a sewer, conduit, ship's tank, etc. for repair work or inspection > Get A Quote >

What does manhole mean? - Definitions.n

Definition of manhole in the dictionary. Meaning of manhole. What does manhole mean? Information and translations of manhole in the most comprehensive dictionary definitions resource on … > Get A Quote >

Sewer Manhole Sealing - NASS

2 General: Sewer manhole sealing includes the following (2.1) The sealing of the manhole base, walls, corbel/cone and chimney of brick, block or precast manholes. (2.2) The sealing of precast manhole barrel joints, when general structure sealing is not required. (2.3) The sealing of the manhole frame joint area and the chimney above the cone. > Get A Quote >

Manhole - Wikiped

A manhole (alternatively utility hole, cable chamber, maintenance hole, inspection chamber, access chamber or sewer hole) is the opening to a confined space such as a large vessel, a shaft or a utility vault (often used to house an access point for making connections, inspection, valve adjustments or performing maintenance on underground and buried public utility and other services including > Get A Quote >

SZS series gas-fired (oil-fired) hot water boiler - Ga

SZS series boiler is designed with longitudinal double drums and " D " type chamber structure. The furnace is on the right and convection tube bank is on the left. The body is fixed on the basement by middle and both end flexible supports and make the boiler expand horizontally sideways. Around the furnace is membrane wall. > Get A Quote >


U.S. FOUNDRY & MANUFACTURING CORPORATION MANHOLE RINGS & COVERS M-7 MANHOLE COVER TYPES The following pages show the covers which are used in series and are not depicted in detail in the catalog. > Get A Quote >

Boilers -

The tubes are well supported. A manhole may be fitted at the lower part of the shell allows access to the heating elements. The drum is generally mounted integral, supports are attached to the structure … > Get A Quote >