Heating device capable of keeping constant temperature of tobacco leaf greenhouse seedling cultivation water pool

Abstract

The invention discloses a heating device capable of keeping constant temperature of a tobacco leaf greenhouse seedling cultivation water pool. The heating device is composed of a heating unit and a circulating water supply system, wherein the heating unit is a box and provided with a shell and an inner core. A temperature controller, indicator lights, a power switch and an adjusting knob are arranged on the outer surface of the shell, a power connector is arranged on the upper portion of the shell, and a water inlet connector and a water outlet connector are formed in the lower portion of the shell. The inner core is provided with a heating module, a pressure relay and a buzzer, the heating module is composed of a far-infrared heating pipe, a lower cover, an upper cover, a sealing rubber pad and a pressing screw, and the far-infrared heating pipe is placed in the middle of a groove. The pressure relay is mounted above the water inlet connector, and the circulating water supply system is further composed of a water inlet pipe, a water outlet pipe and an immersible pump, wherein one end of the water outlet pipe is connected with an outlet of the heating unit, the other end of the water outlet pipe is inserted in water in the seedling cultivation water pool, one end of the water inlet pipe is connected with the immersible pump mounted under water, and the other end of the water inlet pipe is connected with a water inlet of the heating unit. The heating device can be used for continuous heating, water outlet temperature is constant and even, and the heating device is suitable for tobacco leaf seedling cultivation.

Description

technical field [0001] The invention relates to water cultivation of tobacco seedlings, and also to water heating equipment, in particular to a device for heating and maintaining a constant temperature of pool water for floating tobacco seedling cultivation. Background technique [0002] Tobacco leaf floating seedling cultivation is an advanced seedling cultivation technology in the tobacco industry. Since the seedling medium of the soil is completely eliminated, the occurrence of soil-borne diseases at the seedling stage is fundamentally eliminated, and the floating seedlings are carried out in the seedling shed, which reduces the impact of the adverse environment on the tobacco seedlings. However, the tobacco seedlings in the nursery stage have high requirements on the temperature of the pool, and the temperature of the pool must be constant. Too high or too low will damage the normal growth of the tobacco seedlings. Most of the traditional constant methods use methods suc...

AI Technical Summary

Problems solved by technology

Although these two technologies have the effect of heating pool water, the former requires a boiler, and its constant temperature effect is not necessarily satisfactory; the latter lays the heating cable directly on the bottom of the pool where the tobacco leaves are floating and growing seedlings. Obviously, this has troublesome construction and insulation requirements. High disadvantages

Images