High-safety hot water tank

Abstract

The high-safety hot water tank comprises a hot water tank body, a water adding opening, a water discharging opening, an air inlet and outlet device and a lifting mechanism, due to the fact that the air inlet and outlet device is arranged, when the internal pressure of the hot water tank body is increased, water vapor enters an outer frame through an output pipe, and a movable plate is pushed by the water vapor to drive a baffle to ascend; when negative pressure is generated in the hot water tank, air enters the outer frame through the air inlet pipe, and the air enters the outer frame through the air outlet pipe, so that the water vapor is discharged through the air outlet pipe, and the movable plate resets under the elastic pressure of the second spring and continues to block the notch in the side wall of the outer frame; and the movable plate is pushed downwards, so that the baffle on the right side loses blocking on the pipe opening of the input pipe, air in the outer frame enters the hot water tank through the input pipe, and the pressure intensity in the hot water tank is adjusted to enable the hot water tank not to deform.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler production, in particular to a high-safety hot water tank. Background Art

[0002] Hot water tanks are widely used in the industrial field to heat different liquids including acids, alkalis, extracts, etc. When working, traditional hot water tanks often produce over-temperature and over-pressure working conditions in many cases, which not only has great damage to the hot water tank, but also causes the hot water tank to explode, thus posing a great safety hazard to the operators.

[0003] When optimizing existing high-safety hot water tank equipment, most of the efforts are focused on improving safety. For example, the Chinese utility model patent with publication number CN201420455028.X discloses a "high-safety hot water tank". This utility model patent sets a pressure monitoring device, and a vent and a safety valve on the tank body. When the tank body is over-heated or over-pressured, the tank body can be protected immediately. Since the bottom of the tank body bears the greatest pressure, the bottom of the tank body, the bottom head and the outlet pipe are most susceptible to damage. A skirt cylinder is set at the bottom of the tank body, and the bottom of the tank body, the bottom head and the outlet pipe can provide better protection and contain the leaked liquid or gas in the tank body, so that it will not be directly discharged into the environment.

[0004] Although the above method has certain advantages in improving safety, it still has certain disadvantages: when the hot water tank is heating, the air filled inside makes the hot water tank have a very large safety hazard. When adding water to the hot water tank, due to the high temperature inside the hot water tank, after the cold water is injected, negative pressure will be generated inside the hot water tank, which can easily cause the hot water tank to deform. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a high-safety hot water tank to solve the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-safety hot water tank, comprising a hot water tank, a water inlet, a drain outlet, an air inlet and an exhaust device and a lifting mechanism, wherein the water inlet is fixedly installed in the middle of the upper end of the hot water tank, the drain outlet is fixedly installed on the lower side of the rear end of the hot water tank, one side end of the air inlet and exhaust device is connected to the hot water tank, and the lifting mechanism is connected to the air inlet and exhaust device; the air inlet and exhaust device comprises an output pipe, an exhaust pipe, an air inlet pipe, an input pipe and a one-way valve, the upper end of the output pipe is fixedly connected to the lower end of the lifting mechanism, the right end of the output pipe is connected to the upper middle end of the front end of the hot water tank, the right end of the exhaust pipe is connected to the middle of the left end of the lifting mechanism, the left lower end of the air inlet pipe is fixedly connected to the upper end of the exhaust pipe, the right lower end of the air inlet pipe is connected to the lifting mechanism, the left end of the input pipe is connected to the right end of the lifting mechanism, and the one-way valve is installed on the outside of the input pipe and the exhaust pipe.

[0009] Preferably, the lifting mechanism includes an outer frame, a spring, a movable plate, a baffle, a second spring and a limiting rod, the spring is fixedly installed at the inner lower end of the outer frame, the middle part of the lower end of the movable plate is connected to the spring, the baffle is installed at the upper end of the movable plate, the lower end of the second spring is connected to the middle part of the upper end of the movable plate, and the second spring is sleeved on the outside of the limiting rod.

[0010] Preferably, the flow direction of the one-way valve at the right end of the middle part of the exhaust pipe is from right to left.

[0011] Preferably, the one-way valve at the left end of the input pipe flows in a direction from left to right.

[0012] Preferably, the baffles are symmetrically arranged, and are arranged in a circular ring shape to match the inner wall of the outer frame.

[0013] Preferably, both side walls of the outer frame are provided with notches.

[0014] Preferably, the spring is made of high-carbon steel and has the characteristics of high strength and high hardness.

[0015] Preferably, the baffle is made of steel and is durable and corrosion-resistant.

[0016] (III) Beneficial effects

[0017] The utility model provides a high-safety hot water tank. It has the following beneficial effects: by setting an air intake and exhaust device, when the internal pressure of the hot water tank increases, water vapor enters the interior of the outer frame through the output pipe, and the movable plate is pushed up with the baffle plate by the water vapor, so that the baffle plate loses the blocking of the outlet of the exhaust pipe, so that the water vapor is discharged through the exhaust pipe, and the movable plate is reset under the elastic pressure of the second spring to continue to block the gap of the outer frame side wall, when negative pressure is generated inside the hot water tank, air enters the interior of the outer frame through the air intake pipe, and pushes the movable plate downward to make the baffle plate on the right side lose the blocking of the pipe opening of the input pipe, so that the air inside the outer frame enters the interior of the hot water tank through the input pipe, and the pressure inside the hot water tank is adjusted so that the hot water tank will not be deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the high-safety hot water tank of the utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of the high-safety hot water tank of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the air intake and exhaust device of the utility model;

[0021] Figure 4 It is a schematic diagram of the planar structure of the air intake and exhaust device of the utility model;

[0022] Figure 5 It is a schematic diagram of the planar structure of the lifting mechanism of the utility model.

[0023] In the figure: hot water tank 1, water inlet 2, drain outlet 3, air inlet and exhaust device 4, lifting mechanism 5, output pipe 41, exhaust pipe 42, air inlet pipe 43, input pipe 44, one-way valve 45, outer frame 51, spring 52, movable plate 53, baffle 54, second spring 55, limit rod 56. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-2The utility model provides a technical solution for a high-safety hot water tank: a high-safety hot water tank, comprising a hot water tank 1, a water inlet 2, a water outlet 3, an air intake and exhaust device 4 and a lifting mechanism 5, the water inlet 2 is fixedly installed at the middle of the upper end of the hot water tank 1, the water outlet 3 is fixedly installed at the lower side of the rear end of the hot water tank 1, one side end of the air intake and exhaust device 4 is connected to the hot water tank 1, and the lifting mechanism 5 is connected to the air intake and exhaust device 4.

[0026] See also Figure 3-4 The utility model provides a technical solution for a high-safety hot water tank: a high-safety hot water tank, comprising an air intake and exhaust device 4 including an output pipe 41, an exhaust pipe 42, an air intake pipe 43, an input pipe 44 and a one-way valve 45, the upper end of the output pipe 41 is fixedly connected to the lower end of the lifting mechanism 5, the right end of the output pipe 41 is connected to the upper middle end of the front end of the hot water tank 1, the right end of the exhaust pipe 42 is connected to the middle of the left end of the lifting mechanism 5, the lower left end of the air intake pipe 43 is fixedly connected to the upper end of the exhaust pipe 42, the lower right end of the air intake pipe 43 is connected to the lifting mechanism 5, the left end of the input pipe 44 is connected to the right end of the lifting mechanism 5, and the one-way valve 45 is installed on the outside of the input pipe 44 and the exhaust pipe 42; the one-way valve 45 at the right end of the middle of the exhaust pipe 42 has a flow direction from right to left; the one-way valve 45 at the left end of the input pipe 44 has a flow direction from left to right.

[0027] See also Figure 5 The utility model provides a technical solution for a high-safety hot water tank: a high-safety hot water tank, comprising a lifting mechanism 5 including an outer frame 51, a spring 52, a movable plate 53, a baffle 54, a second spring 55 and a limiting rod 56, the spring 52 is fixedly installed at the inner lower end of the outer frame 51, the middle part of the lower end of the movable plate 53 is connected to the spring 52, the baffle 54 is installed at the upper end of the movable plate 53, the lower end of the second spring 55 is connected to the middle part of the upper end of the movable plate 53, and the second spring 55 is sleeved on the outer side of the limiting rod 56; the baffles 54 are symmetrically arranged, and the baffles 54 are arranged in a circular ring shape to match the inner wall of the outer frame 51; notches are provided on both side walls of the outer frame 51; the spring 52 is made of high-carbon steel and has the characteristics of high strength and high hardness; the baffle 54 is made of steel and has the characteristics of firmness, durability and corrosion resistance.

[0028] The working principle is as follows: when the hot water tank 1 is heated, the internal pressure of the hot water tank 1 increases, and the water vapor enters the interior of the outer frame 51 through the output pipe 41, and the movable plate 53 is pushed up with the baffle 54 by the water vapor, so that the baffle 54 loses its obstruction to the outlet of the exhaust pipe 42, so that the water vapor is discharged through the exhaust pipe 42, and the movable plate 53 is reset under the elastic pressure of the second spring 55 to continue to block the gap of the side wall of the outer frame 51 to prevent air from entering the interior of the hot water tank 1 by mistake;

[0029] After the hot water is discharged through the drain port 3, cold water is injected into the hot water tank 1 through the water inlet 2. Since the temperature inside the hot water tank 1 is relatively high, the injection of cold water will cause negative pressure inside the hot water tank 1. Air enters the outer frame 51 through the air inlet pipe 43, and pushes the movable plate 53 downward so that the baffle 54 on the right side loses its obstruction to the pipe opening of the input pipe 44, allowing the air inside the outer frame 51 to enter the hot water tank 1 through the input pipe 44, and adjusting the pressure inside the hot water tank 1 so that the hot water tank 1 will not be deformed.

[0030] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0031] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-safety hot water tank, comprising a hot water tank (1), a water inlet (2), a water outlet (3) and a lifting mechanism (5), wherein the water inlet (2) is fixedly mounted at the middle of the upper end of the hot water tank (1), the water outlet (3) is fixedly mounted at the lower side of the rear end of the hot water tank (1), and the lifting mechanism (5) is connected to an air intake and exhaust device (4); Features: The invention also comprises an air intake and exhaust device (4), one side end of which is connected to the hot water tank (1), and the air intake and exhaust device (4) comprises an output pipe (41), an exhaust pipe (42), an air intake pipe (43), an input pipe (44) and a one-way valve (45). The upper end of the output pipe (41) is fixedly connected to the lower end of the lifting mechanism (5), the right end of the output pipe (41) is connected to the upper middle end of the front end of the hot water tank (1), the right end of the exhaust pipe (42) is connected to the middle of the left end of the lifting mechanism (5), the lower left end of the air intake pipe (43) is fixedly connected to the upper end of the exhaust pipe (42), the lower right end of the air intake pipe (43) is connected to the lifting mechanism (5), the left end of the input pipe (44) is connected to the right end of the lifting mechanism (5), and the one-way valve (45) is installed on the outside of the input pipe (44) and the exhaust pipe (42).

2. A high-safety hot water tank according to claim 1, characterized in that: The lifting mechanism (5) comprises an outer frame (51), a spring (52), a movable plate (53), a baffle (54), a second spring (55) and a limiting rod (56); the spring (52) is fixedly mounted on the inner lower end of the outer frame (51); the middle part of the lower end of the movable plate (53) is connected to the spring (52); the baffle (54) is mounted on the upper end of the movable plate (53); the lower end of the second spring (55) is connected to the middle part of the upper end of the movable plate (53); and the second spring (55) is sleeved on the outer side of the limiting rod (56).

3. A high-safety hot water tank according to claim 1, characterized in that: The one-way valve (45) at the right end of the middle part of the exhaust pipe (42) has a flow direction from right to left.

4. A high-safety hot water tank according to claim 1, characterized in that: The one-way valve (45) at the left end of the input pipe (44) has a flow direction from left to right.

5. A high-safety hot water tank according to claim 2, characterized in that: The baffles (54) are symmetrically arranged, and are arranged in a circular ring shape to coincide with the inner wall of the outer frame (51).

6. A high-safety hot water tank according to claim 2, characterized in that: The side walls of the outer frame (51) are provided with notches.

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