CN202257316U

CN202257316U - Novel constant-temperature trough

Info

Publication number: CN202257316U
Application number: CN2011203416400U
Authority: CN
Inventors: 吴舒克
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-04
Filing date: 2011-09-04
Publication date: 2012-05-30
Anticipated expiration: 2021-09-04

Abstract

The utility model discloses a novel constant-temperature trough, and adopts the scheme as follows: a watering cycle water pump is arranged on one side of the upper part of a water tank; a temperature controller is arranged on the side of the water tank; a heating pipe, two thermal resistor sensor probes and a temperature meter are arranged in the trough below the water tank; the temperature controller is connected with the heating pipe and the thermal resistor sensor probes via wires; and a frame type maze-shaped water flow heat exchanger slantways arranged is located at the upper part close to the temperature controller; recirculation water circularly flows downwards along a maze-shaped baffle plate from the upper part of the heat exchanger and flows into the trough finally, and the water pump pumps out the constant-temperature water. The utility model has the benefits that the structure is reasonable; the water trough is safe and reliable, and can cool and heat the water; and the regulation is convenient, and the water temperature control range is wide.

Description

A kind of novel constant-temperature tank

Technical field

The utility model patent relates to a kind of Water Tank with Temp.-controlled; It is to be the device that need provide with the constant temperature water source, and it both can raise water temperature, can water temperature be descended again; Leaving water temperature can not receive the restriction of ambient air temperature height; Easy and simple to handle, applicable situation is wide, can for checkout equipment or plant equipment a kind of novel constant-temperature tank be provided effectively.

Background technology

There are many kinds of checkout equipments or plant equipment need use the constant temperature water source in the market; And big multiple Water Tank with Temp.-controlled is when indoor use; Often receive the water temperature that influences of environment temperature to be difficult to lower, operate easy Water Tank with Temp.-controlled so need a kind of water temperature arbitrarily to control.

Summary of the invention

This patent proposes a kind of novel constant-temperature tank; Scheme thes contents are as follows: a sink box; Top one side at it is equipped with the round-robin suction pump of fetching water, and on its next door temperature controller is housed, and a heating tube is housed in the tank below; Two thermistor (temperature) sensor probes, a thermometer.Temperature controller is connected with the thermistor (temperature) sensor probe with heating tube with lead; Near the temperature controller side a tilted-putted frame labyrinth-like current heat interchanger is arranged on tank top; Recirculation water gets into from heat interchanger top and flows downward to and fro along the labyrinth-like dividing plate; Flow at last in the tank, suction pump is outwards exported thermostatted water.

This patent beneficial effect is rational in infrastructure, and is safe and reliable, ability chilled water and water heating, and easy to adjust, the water temperature range of control is wide.

Description of drawings

Below in conjunction with accompanying drawing and embodiment this patent is described further.

Fig. 1 is a kind of novel constant-temperature sink structure distribution schematic diagram.

Heating of a kind of novel constant-temperature tank of Fig. 2 electrical equipment and electric refrigerator structural representation.

(1) among the figure, Water Tank with Temp.-controlled, (2), the WS, (3), inspection door; (4), Soft wind electric fan, (5), heating radiator, (6), frame labyrinth-like current heat interchanger; (7), Automatic Temperature Control, (8), suction pump, (9), NTC type negative tempperature coefficient thermistor sensor probe; (10), the posistor sensor probe, (11), thermometer.

Embodiment

The novel constant-temperature tank, its recirculation water gets in the tilted-putted frame labyrinth-like current heat interchanger, and heat interchanger is that metal material is processed; In framework, laterally arrange with the multiple tracks dividing plate; Dividing plate and base plate weld with welding wire, guarantee the mobile water-tight short circuit of not walking of water inside, and heat interchanger tilts to place water and flows in the tank lentamente from top to down; On the oblique back side of heat interchanger, be stained with the polylith semiconductor refrigeration chip with glue; On every block semiconductor refrigerating chip outside surface, heating radiator is housed, on heating radiator,, is used for the heat that cooled wafer outwards distributes with Soft wind electric fan of screw fixings.

This Automatic Temperature Control circuit is made up of power circuit, temperature detection control circuit, trigger, duty indicating circuit and control executive circuit, and is as shown in Figure 2.

Temperature detection control circuit is made up of temperature sensor RT, resistor R 1～R5, potentiometer RP1, RP2 and operational amplifier IC 1 (N1, N2).Trigger is made up of four Sheffer stroke gate ICs, 2 inner Sheffer stroke gate D1～D4.The control executive circuit is made up of resistor R 7, transistor V, diode VD and relay K.The duty indicating circuit is made up of current-limiting resistor R6 and light emitting diode VL.Power circuit is made up of power switch S, power transformer T, rectifier bridge heap UR, circuit of three-terminal voltage-stabilizing integrated IC3 and filter capacitor C1, C2.

Press the energize switch S, alternating current 220V voltage is after T step-down, UR rectification, C1 filtering and IC3 voltage stabilizing, and the generation+5V voltage at the C2 two ends, supplying temperature detect control circuit, trigger and control executive circuit.

Control circuit can switch to refrigeration or heating, with dual gate knife control, just switches RT1, RT2 and K1, K2.

RT1 is a NTC type negative tempperature coefficient thermistor sensor probe, and RT2 is the posistor sensor probe, encapsulates with pyroceram.

Temperature sensor RT and resistor R 1 are formed temperature sensing circuit, and potentiometer RP1 and resistor R 2, R3 form the lowest temperature initialization circuit, and RP2 and M, R5 form the upper temperature limit initialization circuit.

The resistance of adjustment RP1 can make A point (operational amplifier N1 normal phase input end) voltage between 1.74～2.29V, change, and the resistance of adjustment RP2 can make B point (operational amplifier N2 inverting input) voltage between 2.53～3V, change.

The resistance of temperature sensor RT reduces along with the rising of temperature.When water temperature in the tank surpasses the higher limit (for example 85 ℃) of set water temperature, C point (the anti-phase input end of M and the positive input end of N2) voltage will be higher than the B point voltage, and N2 exports high level; Make the output terminal D point of trigger become high level; V is full logical, the K adhesive, and its normally open contact is connected; Through A.C. contactor (not drawing in the circuit) working power of refrigeration is connected, semiconductor refrigerating begins.Along with the decline of water temperature, the resistance of RT increases gradually, and the C point voltage is progressively reduced.When water temperature is lower than the lower limit (for example 50 ℃) of design temperature, the C point voltage will be lower than the A point voltage, and N1 exports high level, makes the D point become low level, and V ends, and K discharges, and semiconductor refrigerating quits work.

Claims

1. novel constant-temperature tank is characterized in that: a sink box is arranged, in its top one side the round-robin suction pump of fetching water is housed; Temperature controller is equipped with on next door at it, and a heating tube is housed in the tank below, two thermistor (temperature) sensor probes; A thermometer; Temperature controller is connected with the thermistor (temperature) sensor probe with heating tube with lead, near the temperature controller side a tilted-putted frame labyrinth-like current heat interchanger is arranged on tank top, and recirculation water gets into from heat interchanger top and flows downward to and fro along the labyrinth-like dividing plate; Flow at last in the tank, suction pump is outwards exported thermostatted water.

2. a kind of novel constant-temperature tank according to claim 1 is characterized in that: a tilted-putted frame labyrinth-like current heat interchanger is to be processed by metal material; In framework, laterally arrange with the multiple tracks dividing plate; Dividing plate and base plate weld with welding wire, on the oblique back side of heat interchanger, are stained with the polylith semiconductor refrigeration chip with glue, on every block semiconductor refrigerating chip outside surface, heating radiator are housed; On heating radiator,, be used for the heat that cooled wafer outwards distributes with Soft wind electric fan of screw fixings.

3. a kind of novel constant-temperature tank according to claim 1; It is characterized in that: this Automatic Temperature Control circuit is made up of power circuit, temperature detection control circuit, trigger, duty indicating circuit and control executive circuit; Temperature detection control circuit is made up of temperature sensor RT, resistor R 1～R5, potentiometer RP1, RP2 and operational amplifier IC 1 (N1, N2); Trigger is made up of four Sheffer stroke gate ICs, 2 inner Sheffer stroke gate D1～D4; The control executive circuit is made up of resistor R 7, crystal and V, diode VD and relay K; The duty indicating circuit is made up of current-limiting resistor R6 and light emitting diode VL, and power circuit is formed refrigeration in the control circuit or heating by power switch S, power transformer T, rectifier bridge heap UR, anxious IC 3 and filter capacitor C1, the C2 of pressing of three ends; Switch RT1, RT2 and K1, K2 with dual gate knife; Temperature sensor RT and resistor R 1 are formed temperature sensing circuit, and potentiometer RP1 and resistor R 2, R3 form the lowest temperature initialization circuit, and RP2 and M, R5 form the upper temperature limit initialization circuit.

4. a kind of novel constant-temperature tank according to claim 1 is characterized in that: RT1 is a NTC type negative tempperature coefficient thermistor sensor probe, and RT2 is the posistor sensor probe, encapsulates with pyroceram.