CN108799553A - A kind of preposition water recovery apparatus of temperature control - Google Patents

Abstract

A temperature-controlled pre-return water device, including a shell, a hot water source interface, a cold water source interface, a faucet hot water connection, a faucet cold water connection, a hot water channel in front of a valve core, a ceramic valve core fixed piece, a ceramic valve core moving piece, a valve Core push rod, temperature control, manual reset rod, hot water channel behind the valve core, water diversion channel, special return water interface, check valve, and connecting cold water channel; when the user presses the valve core push rod, the valve The mechanism is in the open position. At this time, the cold water stagnated in the hot water pipe is driven by the external pressure from the hot water source interface along the hot water channel in front of the valve core through the valve mechanism and enters the hot water channel behind the valve core, and the hot water behind the valve core After the water flow in the channel enters the water distribution channel, it flows in different directions according to different application modes; one is to enter the cold water source interface through the check valve along the connecting cold water channel and return to the cold water pipe; the other flow direction is to enter from the special return water interface In the designated container; as the cold water flows away, the temperature gradually rises, the temperature control expands when heated and pushes the ceramic valve core moving piece to make the ceramic valve core moving piece close the valve mechanism, and the return water stops; When the mixing spool of the faucet on the water interface and the cold water interface of the faucet is connected, hot water can flow directly from the faucet.

Description

A temperature-controlled pre-return device

technical field

The invention belongs to the field of water-saving appliances, and in particular relates to a water-saving device installed before a faucet (faucet).

Background technique

At the beginning of urbanization, without exception, it started from rural areas and towns, so people can get cheap water resources, so water saving never seems to be an important issue. Only when the urban construction reaches a certain scale, the tension of water resources will suddenly appear inadvertently and people will be caught off guard. But the problem is that people's construction standards and usage habits and water-saving needs have long been different. Society has already paid a heavy price when people suddenly realize that water is a precious resource that needs to be conserved, and it will pay an even heavier price to change this status quo.

The emergence of solar water heaters not only greatly facilitates people's daily life, but also saves huge and amazing energy for people. However, solar water heaters have always been born with a congenital defect, that is, the collector plate It is placed on the top of the building or hung on the outer wall. In short, it must be in a place where the outdoor sunlight can directly reach. There will be a section of pipe between the heat source and the water end that will cause cold water to remain. Hot water comes out. In this way, a regular waste is caused, especially in places where the water price is low, this waste is more likely to be ignored.

The urban residences in our country are mainly based on the 7-8 storey model. Simple calculations show that the distance from the roof to the first floor is about 20 meters, and the cold water retained in the pipeline is about 11kg. Residents in China almost have to release 15kg of water to reach the bathing water temperature, and more in winter. This waste may seem insignificant as a family, but is enormous as a society.

my country is a landlocked country, and water resources have always been scarce. To build a conservation-oriented society, water conservation has become a more prominent issue. Looking at the huge investment and arduousness of the project in the South-to-North Water Transfer Project across the country, and the huge investment in countless local water diversion projects, the construction of a water diversion project for a city with a population of one million will be based on an investment of tens of billions. Therefore, it is not difficult for us to see the economic and social significance of the advent of water-saving equipment.

Contents of the invention

The problem to be solved by the invention is to solve the problem of wasting cold water before use due to the inability to return water from the existing faucet by providing a temperature-controlled water return device installed in front of the faucet.

In order to solve the problems of the technologies described above, the technical solution adopted by the present invention is:

Provide a temperature-controlled return water device installed in front of the faucet, including a shell 1, a hot water source interface 3, a cold water source interface 4, a faucet hot water interface 5, a faucet cold water interface 6, a hot water channel in front of the valve core 7, and a ceramic valve core Stator 9, ceramic spool moving piece 11, spool push rod 13, temperature control 15, manual reset lever 17, hot water channel 19 behind spool, water diversion channel 21, special return water interface 23, check valve 25 And connect the cold water channel 27; Wherein, the valve mechanism that is made up of two pieces of ceramic spool fixed pieces 9 and a piece of ceramic spool movable piece 11 is in the closed position when the initial state, when the user presses the spool push rod 13, due to The sliding of the moving piece 11 of the ceramic valve core changes the relative position of the fixed piece 9 of the ceramic valve core, so that the valve mechanism is in the open position and the device enters the working state. From the hot water source interface 3, along the front hot water channel 7 of the valve core, through the valve mechanism, enter the rear hot water channel 19 of the valve core, and in the hot water channel behind the valve core, there is a temperature control 15 on the movement axis of the ceramic moving plate 11 , the water flowing through the temperature control 15 enters the water distribution channel 21; according to different application modes, the water flow entering the water distribution channel 21 has two flow directions, one is to enter the cold water source interface through the check valve 25 along the connecting cold water channel 27 4 Return to the cold water pipe; the other flow direction is to enter the designated container from the special return water interface 23; as the cold water flows away and the water temperature gradually increases, the temperature control 15 is heated and expands and pushes the ceramic valve core moving piece 11 to reset Direction movement, when reaching a certain temperature, the ceramic spool moving piece 11 is completely reset and the valve mechanism is closed, and the return water stops; at this time, when the faucet mixing valve core installed on the faucet hot water interface 5 and the faucet cold water interface 6 is opened, Hot water can flow directly from the faucet.

Further, the pushing displacement of the ejector pin in the temperature-sensitive control 15 to the ceramic rotor 11 has a linear relationship with the temperature rise.

Further, the application of the temperature-controlled front water return device in water heaters is preferably solar water heaters, electric water heaters, heat pump water heaters and gas water heaters.

The advantages and positive effects of the invention are as follows: the linear control method is adopted to facilitate the user to control the temperature of the mixed water; the semi-automatic control of the use process provides water saving and convenience for the user without changing the faucet. At the same time, the invention has simple structure, convenient installation and outstanding water saving effect, and is very suitable for industrial production and market promotion.

Description of drawings

Accompanying drawing 1 is the structural representation of the initial state of the temperature control pre-backwater device in the invention

Accompanying drawing 2 is the structural representation of the working state of the temperature control pre-backwater device in the invention

Accompanying drawing 3 is the structure schematic diagram of the temperature control pre-return water device in the invention for the solar energy special return water pipe mode

Accompanying drawing 4 is the structural schematic diagram of the temperature-controlled pre-backwater device of the present invention for the secondary water supply environment

Accompanying drawing 5 is the structural schematic diagram of the temperature-controlled pre-backwater device of the present invention for the pressurized hot water source.

In the picture:

1. Shell 3 Hot water source interface 4 Cold water source interface 5 Faucet hot water interface

6 Faucet cold water interface 7 Valve core front hot water channel 9 Ceramic valve core fixed piece 11 Ceramic valve core moving piece

13 Spool push rod 15 Temperature control 17 Manual reset lever 19 Hot water channel behind the spool

21 Water distribution channel 23 Special return water interface 25 Check valve 27 Connecting cold water channel.

Detailed ways

The inventive use process of the present invention: when the user presses the valve core push rod 13, due to the sliding of the ceramic valve core moving piece 11, the relative position of the ceramic valve core fixed piece 9 changes, so that the valve mechanism is in the open position, and the device Entering the working state, the cold water stagnated in the hot water pipe is driven by the external pressure from the hot water source interface 3 along the hot water channel 7 in front of the valve core through the valve mechanism and enters the hot water channel 19 behind the valve core. In the hot water channel, the temperature control 15 is located on the movement axis of the ceramic moving piece 11, and the water flowing through the temperature control 15 enters the water distribution channel 21; according to different application modes, there are two types of water flow into the water distribution channel 21 Flow direction, one is to enter the cold water source interface 4 and return to the cold water pipeline through the check valve 25 along the connecting cold water channel 27; the other flow direction is to enter the designated container from the special return water interface 23; as the cold water flows away, the water temperature gradually increases. When the temperature rises, the temperature control 15 is heated and expands and pushes the ceramic valve core moving piece 11 to move in the reset direction. When a certain temperature is reached, the ceramic valve core moving piece 11 is completely reset and the valve mechanism is closed, and the return water stops; When the water mixing spool of the faucet on the hot water interface 5 and the faucet cold water interface 6 is turned on, hot water can directly flow out from the faucet.

Below in conjunction with different water heater types introduce the application that the present invention creates:

As shown in Figure 3, in the use of falling water solar energy, since the solar heat collector is usually placed on the top of the house, the distance from the solar heat collector to the end of the water (bathing faucet) will be very long, and the stagnant water in the pipeline There will also be a lot of cold water, and the waste of discarded water is astonishing. If the temperature-controlled pre-return device of the present invention is used, as long as a special return pipe and a cold water return tank are established, when the user presses the valve core push rod 13, the cold water before use can pass through the temperature-controlled pre-return device. The special-purpose return water interface 23 allows cold water to flow into the cold water return tank or a designated container before use, and these cold water can return to the cold water end of the tap from the special-purpose return water interface and be used up when taking a bath normally.

As shown in Figure 4, in the use of falling water solar energy, if the application environment allows cold water to use secondary water supply, it is necessary to change the cold water supply to water tank water supply, and make the liquid level of the hot water storage tank higher than that of the cold water storage tank Liquid level, when the user presses the spool push rod 13, the cold water before use can be returned to the cold water supply pipeline through the front temperature-controlled backwater device, so as to realize the natural backwater of the liquid level difference.

As shown in Figure 5, in the environment of pressurized water heaters (such as electric water heaters, gas water heaters and heat pump water heaters), it is usually necessary to close the loop in the pipeline to achieve water saving, so a pipeline booster pump is required for auxiliary pressurization. When the user needs to return water, the user presses the valve core push rod 13 and simultaneously starts the water pump circulation.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (4)

1. a kind of preposition water recovery apparatus of temperature control, it is characterised in that：Including shell（1）, hot water source interface（3）, cold water source interface （4）, leading interface of hot water（5）, leading cold water interface（6）, hot water channel before spool（7）, ceramic cartridge stator（9）, ceramic valve Core movable plate（11）, spool push rod（13）, temperature control part（15）, hand-reset bar（17）, hot water channel after spool（19）, divide aquaporin （21）, special return water interface（23）, check (non-return) valve（25）And it is coupled cold water channel（27）；By two panels ceramic cartridge stator（9）With one Piece ceramic cartridge movable plate（11）The valve system of composition is in the closed position in the initial state, when user presses bottom spool push rod （13）When, since the sliding of ceramic cartridge movable plate 11 makes itself and ceramic cartridge stator（9）Relative position change, to make valve machine Structure is in an open position, and device enters working condition, is at this moment trapped in the cold water in hot water pipeline under the promotion of external pressure From hot water source interface（3）Along hot water channel before spool（7）Enter hot water channel after spool by valve system（19）, after spool Hot water channel（19）In have temperature control part（15）It is in ceramic cartridge movable plate（11）Axis of movement on, flow through temperature control part（15）Water Stream enters and divides aquaporin（21）Different directions is flowed to according to different application models afterwards；One is pass through check (non-return) valve（25）Along connection Tie cold water channel（27）Into cold water source interface（4）It returns in cold water pipes；Another kind flow direction is from special return water interface（23） Into in specified containers；With cold water flow away it is warm after water be stepped up, temperature control part（15）Expanded by heating simultaneously pushes ceramic cartridge Movable plate（11）It is moved to direction is resetted, ceramic cartridge movable plate is made when reaching certain temperature（11）Simultaneously shutoff mechanism is resetted completely, Return water stops；At this moment it opens and is mounted on leading interface of hot water（5）With leading cold water interface（6）On tap water-mixing valve core when, Just hot water can be flowed directly out from tap.

2. the preposition water recovery apparatus of a kind of temperature control according to claim 1, it is characterised in that：Described device has special return water to connect Mouthful（23）.

3. the preposition water recovery apparatus of a kind of temperature control according to claim 1, it is characterised in that：Cold water source interface（3）With hot water Source interface（4）Between by carrying temperature control part（25）Valve system connection.

4. the preposition water recovery apparatus of a kind of temperature control according to claim 1, it is characterised in that：The present apparatus is mounted on hot water or cold water Source and use water end-equipment（Water nozzle）Between.