CN206176513U - Passive water heat exchange station that mixes - Google Patents

Abstract

The utility model discloses a passive mixed water heat exchange station, which comprises a main water supply pipe (2) in a building and a main water supply pipe (7) for a thermal inlet of a building, and a water supply main pipe (2) connected to the main water supply pipe (2) in a building and a thermal inlet of a building. Water mixing ball valve (3), jet pump (4), decontamination device (5) and jet ball valve (6) between main pipes (7); also includes building thermal inlet return water main pipe (10) and building return water Main pipe (14), and the return water gate valve (11) that is connected between building thermal inlet return water main pipe (10) and building backwater main pipe (14); In building backwater main pipe (14) and jet pump ( 4) Between the other inlet ports, there is a circulating mixing branch composed of jet pump injection pipe (12) and injection ball valve (13). The utility model can solve the technical problems of improving the heating quality and reducing the energy consumption of the heating system.

Description

Passive mixed water heat exchange station

technical field

The utility model relates to the field of energy technology, in particular to a heating system.

Background technique

Energy waste is serious. The hydraulic imbalance of the existing heating system is an important reason for the uneven heating and cooling of the existing heating system, and it is also a long-standing problem that still plagues the heating industry. Some are as high as 40-50%; the waste of electric energy caused by it is generally 20-40%, and some are as high as 50-70%.

The operation mode is single. The existing heating system, whether it is an indirect supply system or a direct supply system, adopts the operation mode of "large flow and small temperature difference". The water flow per unit area is generally about 2.4~4.5kgH ₂ 0. Or direct supply/return water temperature is generally about 46-60°C/40-50°C; secondary or direct supply and return water temperature difference is generally about 6-10°C.

It cannot provide different water supply temperatures and cannot meet the different requirements of diverse heat users.

Valve throttling hydraulic balance adjustment technology, the hydraulic stability of the heating system is poor, and debugging is difficult.

Installing a mixed water pump at the heat entrance of the heat user building requires power supply and poses safety hazards.

Utility model content

The purpose of the utility model is to provide a passive mixed water heat exchange station to solve technical problems such as improving the quality of heat supply and reducing the energy consumption of the heat supply system.

The purpose of this utility model is to realize through the following technical solutions:

The passive mixed water heat exchange station (15) includes the main water supply pipe (2) in the building and the water supply main pipe (7) of the thermal inlet of the building, and is connected between the main water supply pipe (2) of the building and the main water supply pipe (7) of the thermal inlet of the building. Mixed water ball valve (3), jet pump (4), decontamination device (5) and jet ball valve (6); also includes building thermal inlet return water main pipe (10) and building interior return water main pipe (14), And the backwater gate valve (11) that is connected between the backwater main pipe (10) of the building thermal inlet and the backwater main pipe (14) in the building; the other inlet of the backwater main pipe (14) and the jet pump (4) in the building Between the ends, there is a circulating mixing branch composed of jet pump injection pipe (12) and injection ball valve (13).

The advantages and effects of this utility model are as follows: the system’s supply and return water supervisor operates with “small flow and large temperature difference”; the heat user’s building operates with “large flow and small temperature difference”; the hydraulic stability of the heating network is improved, and the problem between buildings can be completely solved. It can greatly alleviate the hydraulic imbalance in the building; improve the quality of heating supply and reduce the energy consumption of the heating system. Generally, electricity saving is 20-40%, and heat saving is 10-30%.

Description of drawings

Fig. 1 is a schematic diagram of the system composition and principle of the present utility model.

detailed description

The utility model installs a jet pump at the thermal entrance of the building of the heat user, and uses the self-priming function of the jet pump to attract part of the return water in the return water main pipe in the building to the water supply main pipe in the building, and supply water with the thermal entrance of the building. After mixing, it enters the heat user building, which increases the circulating water flow in the heat user building.

The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

As shown in Figure 1, a jet pump (4) is installed at the thermal inlet of the heat user building, and the self-priming function of the jet pump (4) is used to attract part of the return water in the return water main pipe (14) in the building to the building. In the internal water supply main pipe (2), it enters the heat user building (1) after being mixed with the heat inlet water of the building, which increases the circulating water flow in the heat user building.

The passive mixed water heat exchange station (15) includes the main water supply pipe in the building (2), the mixed water ball valve (3), the jet pump (4), the decontamination device (5), the jet ball valve (6), the water supply for the thermal inlet of the building Main pipe (7), building thermal inlet return water main pipe (10), return water gate valve (11), jet pump ejector pipe (12), ejector ball valve (13), building return water main pipe (14), etc.

The main water supply and return pipes (8 and 9) of the system operate with "small flow and large temperature difference"; in the heat user building, "large flow and small temperature difference" operation; the hydraulic stability of the heating network is improved, and the hydraulic imbalance between buildings can be completely resolved It can greatly alleviate the hydraulic imbalance in the building; improve the heating quality and reduce the energy consumption of the heating system. Generally, the energy saving is 20-40% and the heat saving is 10-30%.

Using the self-priming function of the jet pump (4), part of the return water in the return water main pipe (14) in the building is sucked into the water supply main pipe (2) in the building, mixed with the water supplied by the thermal inlet of the building, and then enters the heat user building (1), this part of the return water is "internal circulation" in the heat user building, and the rest of the return water flows back to the boiler room or heat exchange station to form a "main circulation".

The water circulation of the system water supply and return main pipes (8 and 9) is exactly the "main circulation", and the water circulation of each heat user building (1) includes its own "internal circulation" and part of the "main circulation".

A decontamination device (5) is housed between the jet pump (4) and the jet ball valve (6) to prevent the jet pump (4) from being blocked.

Jet pumps (4) and heat user buildings (1) can be installed one-to-one, one-to-many, many-to-one, and many-to-many, that is, the jet pumps can be installed in parallel or separately.

Claims (1)

1. passive mixed water heat exchange station, it is characterised in that including water main in building (2) and building consumer heat inlet water main (7), And mixed water polo valve (3), the ejector pump being connected between water main in building (2) and building consumer heat inlet water main (7) (4), dirt separator (5) and injection ball valve (6)；Also include return main (14) in building consumer heat inlet return main (10) and building, And the backwater gate valve (11) being connected in building consumer heat inlet return main (10) and building between return main (14)；In building Between return main (14) and another arrival end of ejector pump (4), it is connected with including ejector pump induction tunnel (12) and injection ball valve (13) the circulation mixing branch road of composition.