Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Mixing device and method for controlling the temperature of a fluid flow

a technology of mixing device and fluid flow, which is applied in the direction of heating types, space heating and ventilation details, domestic heating details, etc., can solve the problems of individual components' cost and energy loss in the mixing valve, and achieve the effect of less expensive and higher energy efficiency

Inactive Publication Date: 2020-05-21
GRUNDFOS HLDG
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a mixing device that is cheaper and more energy efficient. It uses a speed-controlled electrical drive motor, which can change the speed of the impeller in the mixing device. The arrangement of the flow connections in the mixing device allows for hydraulic pressure to influence the mixing ratio, which means that one can adjust the mixing ratio without needing a special mixing valve. The design also reduces energy losses and simplifies the construction of the mixing device. The invention also includes a second circulation pump assembly that provides fluid to the mixing device, which can also influence the mixing ratio. The hydraulic resistance in the flow paths through the impeller can be changed by changing the pressure in the fluid flows, which can be done using pressure increasing / boosting means. Overall, the invention provides a more efficient and cost-effective mixing device.

Problems solved by technology

The disadvantages of these arrangements are the costs for the individual components and the energy losses which occur in a mixing valve.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mixing device and method for controlling the temperature of a fluid flow
  • Mixing device and method for controlling the temperature of a fluid flow
  • Mixing device and method for controlling the temperature of a fluid flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049]Referring to the drawings, FIG. 1 schematically shows a conventional heating circuit for a floor heating 2, i.e. a heating circuit according to the state of the art. A heating boiler 4, for example a gas heating boiler with an integrated circulation pump 6 serves as a heat source. Such combinations are known on the market as compact heating facilities. A further circulation pump assembly 8 with an impeller 10 as well as with an electrical drive motor 12 is provided for the floor heating circuit 2. Here, a mixing device is provided since the heating boiler 4 has too high a feed temperature for the floor heating 2, wherein this mixing device has a mixing point 14 which is situated at the suction side of the impeller 10. A return conduit 16 of the floor heating circuit 2 runs out at the mixing point 14. A feed conduit 18, via which the water or heating medium which is heated by the boiler 4 is fed and injected at the mixing point 14 by the pressure produced by the circulation pum...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A mixing device includes a first inlet (84) and a second inlet (86) inlet and an outlet (80). The first inlet (84) is connected to the outlet (80) via a first flow connection and the second inlet (86) is connected to the outlet (80) via a second flow connection. A circulation pump assembly (24; 46) includes an electric drive motor (30), a control device (34), for controlling the speed of the drive motor (30), and at least one impeller (68; 100) driven by the drive motor. The at least one impeller (68; 100) is positioned in the first flow connection. The flow connections are configured such that at least one hydraulic pressure generated by the impeller (68; 100) in the first flow connection acts as hydraulic resistance in the second flow connection.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a United States National Phase Application of International Application PCT / EP2018 / 070969, filed Aug. 2, 2018, and claims the benefit of priority under 35 U.S.C. § 119 of European Application 17 184 777.5, filed Aug. 3, 2017, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD[0002]The subject-matters of the invention are a mixing device, a heating system with such a mixing device as well as a method for the temperature adjustment of a fluid flow.TECHNICAL BACKGROUND[0003]Mixers or mixing devices are often used in heating facilities, in order to adjust the temperature of a heating medium or heat transfer medium. Thus for example in floor heating facilities it is common to reduce the feed temperature of the heating medium by way of admixing heating medium from the return. Adjustable mixing valves which are electromotorically driven and change the mixing ratio between hot heating medium and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): F24D19/10F24D3/10F24D3/16F04D15/00F04D29/42
CPCF04D15/0066F24D3/1066F24D2220/0207F24D2220/0271F24D3/105F24D3/16F04D29/4293F24D19/1012Y02B30/70F04D15/0016
Inventor BLAD, THOMASBLAD, CHRISTIAN
Owner GRUNDFOS HLDG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com