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Patents in the
Field of Vacuum Drainage

HZT is a professional equipment and service provider focusing on the field of vacuum drainage, integrating independent design, product manufacturing, and ship maintenance services. Its core coverage includes marine vacuum system scenarios, while expanding into the front-end fields of land vacuum toilets, vacuum toilets, and domestic sewage treatment. It is a professional service provider of marine vacuum equipment and supporting solutions in the ship maintenance service market.

Assortment of marine vacuum sanitation system components (compatible with EVAC & JETS models)
Invention Patent
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Product Variety
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Country And Region
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Satisfied Clients
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Product System Introduction

The Company Has Developed Five Major Vacuum Drainage Technology Systems, Each With A Rich Range Of Products. Among These, The “Online And True Protection” Technology Systems Have Numerous Successful Application Cases And A Wide Variety Of Products. Each Technology System Has Its Own Unique Features To Meet The Needs Of Various Application Scenarios.

Online Vacuum Drainage Technology:

It is mainly composed of "online vacuum pumps, steam-water separators, vacuum fault-tolerant tanks", etc., and the main collection targets are various vacuum toilets. The main application scenarios include: urban vacuum public toilets, cultural and tourism smart stations, tunnel vacuum toilets, and shelter vacuum toilets, etc.

True-sealed vacuum drainage technology:

It is mainly composed of three major parts: "vacuum tank, vacuum workstation, and sewage discharge workstation", to achieve decentralized vacuum collection of sewage and wastewater. The main application scenarios include: rural sewage treatment, rainwater and sewage diversion renovation, ancient town drainage renovation, urban utility tunnels, etc.

Rotor-type vacuum drainage technology:

It is mainly composed of a "cam rotor pump, a pilot vacuum pump, a pilot vacuum tank", etc. The collection object is a vacuum drainage device, which is designed for the vacuum collection of ultra-high flow rainwater and wastewater. The main application scenarios include: drainage in old residential areas, sponge city construction, etc.

Pneumatic Vacuum Drainage Technology:

It is mainly composed of "pneumatic vacuum generator, vacuum transition tank, dual-channel vacuum interface valve", etc. It generates vacuum through high-pressure wind and realizes the function of vacuum toilet based on the "vacuum push-pull" principle. Its main application scenarios include: railway vehicle field.

Cavity suction vacuum drainage technology:

It is mainly composed of three parts: "vacuum generator, vacuum transition chamber, and vacuum toilet", which sucks the fecal sewage into the "vacuum transition chamber" and then into the outdoor septic tank or other containers. The main application scenarios include: the toilet revolution in northern rural areas, scenic area rest stops, etc.

Experimental Capabilities

The Company, combining its own experimental capabilities with those of surrounding universities and professional experimental stations, is capable of conducting various types of experiments, including:

Series of Online Vacuum Pump Parameter TestsParameter Testing of Various Vacuum WorkstationsParameter Testing of Various Vacuum Collection Terminals
Series of Online Dynamic Balance Tests for Vacuum PumpsSeries of Online Dynamic Balance Tests for Vacuum PumpsSeries of Online Dynamic Balance Tests for Vacuum Pumps
Toilet Control Panel TestingFunctional Tests of Various Types of Vacuum Interface ValvesFlow Regulating Device Test
Vacuum Drainage Gas-Liquid Ratio TestSchmidt Vacuum Well Water Inundation TestFatigue Testing of Various Components
Vacuum Tube Pass Rate TestToilet Controller Function TestCavity Suction Toilet Sealing Test
Toilet Simulated Flushing TestIntegrated Test of Control CabinetNoise Test
Vacuum Pipeline Tightness TestTensile Strength TestVacuum Drain Valve Lifespan Test
Water Valve Function TestMotor Comprehensive TestSalt Spray Test
Radiation TestHigh And Low Temperature TestShock Vibration Test
Waterproof TestDustproof TestDamp Heat Test
Other: Other test contents specified by the customer

Some Test Equipment Display