A kind of cold die heater of self-circulating water
Technical field
The present invention relates to die heater, it is specifically related to a kind of cold die heater of self-circulating water.
Background technology
Water type die heater is generally passed by water tank, heating and cooling system, dynamic transfer system, tank level control system and temperature
The devices such as sensor, inlet form.Under normal circumstances, the pump in dynamic transfer system make hot fluid from equipped with internal heater and
Reach mould in the water tank of cooler, then return to water tank from mould;The temperature of temperature sensor measurement hot fluid simultaneously passes data
Deliver to the controller of control section;Controller adjusts the temperature of hot fluid, thus indirectly adjusting the temperature of mould.If die heater
Aborning, the temperature of mould exceedes the setting value of controller, and controller will be opened electromagnetic valve and connect water inlet pipe, until hot-fluid
The temperature of liquid, that is, the temperature of mould return to setting value.If mold temperature is less than setting value, controller will open heater.
But, above-mentioned water type die heater does not have high temperature Water Sproading function, exceedes setting of controller in the temperature of mould
During definite value, it usually needs refill water at low temperature while giving off high-temperature water, in order to the temperature of mould is accurately controlled
Within the specific limits, need continually to give off high-temperature water, reinject water at low temperature.This results in wasting of high-temperature water.
Content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of temperature control is accurately and energy-conserving and environment-protective self-loopa
Water-cooled die heater.
In order to achieve the above object, present invention employs technical scheme below:
A kind of cold die heater of self-circulating water, has the feature that, including:SAPMAC method loop and soft circulation circuit.Cold follow
The middle temperature of loopback road direction soft circulation circuit supplies water;The mould that soft circulation circuit controls temperature to need carries out constant temperature water supply.Wherein, cold follow
Loop back path comprises successively along circulation path:It is provided with the water tank of water supplement port, the first power connecting with the circulating outlet in water tank
Transmitting device, the first temperature sensor of water temperature in monitoring SAPMAC method loop, the first electromagnetic valve of control refrigeration cycle break-make,
And the plate type heat exchanger that the flowing water in SAPMAC method loop cooled down;Soft circulation circuit comprises successively along circulation path:The
Two power transmissions, water in the heater that the flowing water in soft circulation circuit is heated, and monitoring soft circulation circuit
The second temperature sensor of temperature;And, the water inlet of the second power transmission is connected with SAPMAC method loop, heater
Outlet is communicated to the circulation water inlet of water tank through the second electromagnetic valve.
Further, in the cold die heater of self-circulating water that the present invention provides, can also have the feature that:First moves
Power transmission apparatus are the first pumping;Second power transmission is the second pumping.
Further, in the cold die heater of self-circulating water that the present invention provides, can also have the feature that:Heating dress
It is set to the heater with overload protection.
Further, in the cold die heater of self-circulating water that the present invention provides, can also have the feature that:First electricity
Magnet valve and the second electromagnetic valve interlocking connection.
Further, in the cold die heater of self-circulating water that the present invention provides, can also have the feature that:SAPMAC method
Loop is provided with gate valve between circulation water inlet and circulating outlet.
Further, in the cold die heater of self-circulating water that the present invention provides, can also have the feature that:SAPMAC method
Loop also comprises the first pressure switch detecting hydraulic pressure.
Further, in the cold die heater of self-circulating water that the present invention provides, can also have the feature that:Thermal cycle
Loop also comprises second pressure switch and the first pressure table of display hydraulic pressure value.
The good effect that the present invention has on the basis of the above is:
The cold die heater of self-circulating water that the present invention provides, by arranging the soft circulation circuit being connected and SAPMAC method loop,
When the water temperature in soft circulation circuit is higher than the mold work temperature setting, high-temperature water is recycled to water tank.SAPMAC method loop to
Warm water during soft circulation circuit is supplementary.When the water temperature in water tank is higher than setting value, plate type heat exchanger is utilized to it by SAPMAC method loop
Cooled.When die heater shuts down cooling, warm water in first being supplemented from SAPMAC method loop to soft circulation circuit, by thermal cycle
High-temperature water drainage in loop is cooled down to it to water tank, then by SAPMAC method loop using plate type heat exchanger, conveys after cooling again
To soft circulation circuit, thus recycling to high-temperature water, ensure higher temperature control accuracy while energy saving and
Water resource, realizes energy-conserving and environment-protective.
Brief description
Fig. 1 is the structural representation of the cold die heater of self-circulating water in embodiments of the invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, real below
Apply the cold die heater of self-circulating water that example combines accompanying drawing the present invention is provided to be specifically addressed.
As shown in figure 1, the cold die heater of self-circulating water that the present embodiment provides includes:SAPMAC method loop 1 and soft circulation circuit
2.(i.e. preheating water) is supplied water to the middle temperature of soft circulation circuit 2 in SAPMAC method loop 1;The mould 3 that soft circulation circuit 2 controls temperature to need enters
Row constant temperature water supply.
SAPMAC method loop 1 comprises successively along circulation path:Water tank 11, the first power transmission 12, first pressure switchs
13, the first temperature sensor 14, the first electromagnetic valve 15, and plate type heat exchanger 16.
Water tank 11 is provided with automatic water supplement mouth and artificial recharge mouth, and such setting is so that water tank 11 can be mended using automatic
In water or artificial recharge, either type carries out moisturizing.First power transmission 12 is to connect with the circulating outlet in water tank 11
The first pumping, first pressure switch 13 is used for detecting hydraulic pressure in SAPMAC method loop 1.Cold following is monitored in first temperature sensor 14
Water temperature in loop back path 1, the first electromagnetic valve 15 controls the break-make of refrigeration cycle 1, and plate type heat exchanger 16 is in SAPMAC method loop 1
Flowing water carry out water-cooled heat exchange cooling.SAPMAC method loop 1 is provided with gate valve 17, gate valve between circulation water inlet and circulating outlet
17 are used for adjusting hydraulic pressure and the flow supplying water to soft circulation circuit 2 in SAPMAC method loop 1.
Soft circulation circuit 2 comprises successively along circulation path:Second power transmission 21, heater 22, second temperature
Sensor 23, second pressure switch 24, and first pressure table 25.
The second pumping that second power transmission 21 is connected with SAPMAC method loop 1 for water inlet, heater 22 is right
Flowing water in soft circulation circuit 2 is heated, and second temperature sensor 23 monitors the water temperature in soft circulation circuit 2.Second pressure
Switch 24 is used for detecting the hydraulic pressure in soft circulation circuit 2, first pressure table 25 shows the hydraulic pressure value in soft circulation circuit 2.
Heater 22 is the heater with overload protection, and its outlet is communicated to water tank 11 through the second electromagnetic valve 26
Circulation water inlet.And the first electromagnetic valve 15 and the second electromagnetic valve 26 interlocking connection, that is, during the first electromagnetic valve 15 conducting, the second electricity
Magnet valve 26 turns off;Or during the first electromagnetic valve 15 shutoff, the second electromagnetic valve 26 turns on.
The cooling circuit of plate type heat exchanger 16 is provided with pressure switch 161 in intake tunnel, is provided with electromagnetic valve in backwater channel
162.And electromagnetic valve 162 is identical with the working condition of the first electromagnetic valve 15, that is, simultaneously turn on or simultaneously turn off.
After automatic water supplement puts in place first, the first power transmission 12 draws water from water tank 11 and is fed forward water tank 11, and
Two electromagnetic valves 26 are opened to water tank 11 aerofluxuss 1 to 3 minute;21 time delay of second power transmission is restarted, now for 1 to 3 minute
Second electromagnetic valve 26 turns off, and supplies water to the middle temperature of soft circulation circuit 2 in SAPMAC method loop 1, and heater 22 will transmit from the second power
The water that device 21 conveying comes is transported to mould 3 after being heated, and high-temperature water continuous recycle stream in soft circulation circuit 2
Dynamic, the gas in soft circulation circuit 2 is through the second electromagnetic valve 26 intermittent discharge to water tank 11.
When the water temperature that second temperature sensor 23 detects in soft circulation circuit 2 is higher than mould 3 operating temperature setting,
Second electromagnetic valve 26 turns on, and the high-temperature water drainage in soft circulation circuit 2 is put into water tank 11, the first temperature sensor 14 detect from
When the water temperature that water tank 11 comes is higher than setting value, the first electromagnetic valve 15 and plate type heat exchanger 16 are opened simultaneously, and electromagnetic valve 162 is same
In the conduction state.Water tank 11, the first power transmission 12, first pressure switch 13, the first temperature sensor 14, the first electricity
Magnet valve 15, and plate type heat exchanger 16 formation SAPMAC method loop, carry out cooling circulation, until water temperature meets the former of water tank 11 to water
First setting value.
The cold die heater of self-circulating water that the present invention provides, by arranging the soft circulation circuit being connected and SAPMAC method loop,
When the water temperature in soft circulation circuit is higher than the mold work temperature setting, high-temperature water is recycled to water tank.SAPMAC method loop to
Warm water during soft circulation circuit is supplementary.When the water temperature in water tank is higher than setting value, plate type heat exchanger is utilized to it by SAPMAC method loop
Cooled.When die heater shuts down cooling, warm water in first being supplemented from SAPMAC method loop to soft circulation circuit, by thermal cycle
High-temperature water drainage in loop is cooled down to it to water tank, then by SAPMAC method loop using plate type heat exchanger, conveys after cooling again
To soft circulation circuit, thus recycling to high-temperature water, ensure higher temperature control accuracy while energy saving and
Water resource, realizes energy-conserving and environment-protective.
Certainly the cold die heater of self-circulating water involved in the present invention is not merely defined in the structure in the present embodiment, any
The equivalent modifications that the present invention is carried out and replacement are also all in scope of the invention.