Small overflowing type ultraviolet sterilizer

Abstract

The utility model discloses a small overflowing type ultraviolet sterilizer which comprises an outer cylinder body, an outer-layer quartz sleeve and an inner-layer quartz sleeve, and the bottom of the outer cylinder body is fixedly connected with the bottom of the inner-layer quartz sleeve; a U-shaped cavity is formed between the inner wall of the outer cylinder and the outer wall of the outer-layer quartz sleeve, and a U-shaped cavity is formed between the inner wall of the outer-layer quartz sleeve and the outer wall of the inner-layer quartz sleeve; the flow guide valve body, the liquid inlet and the liquid outlet are formed in the flow guide valve body in the radial direction; the top of the outer barrel is detachably connected with the flow guide valve body, and the liquid inlet, the cavity and the liquid outlet are sequentially communicated and used for liquid circulation. The central axes of the liquid inlet and the liquid outlet are close and are horizontally arranged, so that the liquid inlet and the liquid outlet can be conveniently connected with a water inlet pipe and a water outlet pipe; liquid flowing channels of the water inlet and the water outlet are in U-shaped spiral circulation, so that the liquid sterilization time is long, and the effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilizers, and mainly relates to a small flow-through ultraviolet sterilizer. Background Art

[0002] For common flow-through ultraviolet sterilizers, most of them are composed of a section of cylindrical stainless steel or plastic to form a working cavity. An ultraviolet sterilization lamp tube is arranged at the central axis of the cavity, and a water inlet and a water outlet are respectively arranged radially on one side of both ends of the outer ring surface of the outer cylinder; the liquid flow channels of the water inlet and the water outlet are linearly conducted, the liquid sterilization path is short, and the sterilization time is short, which affects the sterilization effect. In addition, due to the long distance between the water inlet and the water outlet, this design occupies space during installation and is troublesome to connect with water pipes, causing inconvenience during application. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a small flow-through ultraviolet sterilizer in which the central axes of the liquid inlet and the liquid outlet are close and horizontally arranged, which is convenient for connecting with the inlet water pipe and the outlet water pipe; the liquid flow channels of the water inlet and the water outlet are U-shaped spiral flows, and the liquid sterilization time is long and the effect is better.

[0004] The technical problem to be solved by the utility model can be realized by adopting the following technical solutions:

[0005] A small flow-through ultraviolet sterilizer, characterized by comprising:

[0006] An outer cylinder, an outer layer quartz sleeve, and an inner layer quartz sleeve. The inner layer quartz sleeve, the outer layer quartz sleeve, and the outer cylinder are sequentially sleeved along the longitudinal direction from inside to outside, and the bottom of the outer cylinder is fixedly connected to the bottom of the inner layer quartz sleeve; a U-shaped cavity is respectively formed between the inner wall of the outer cylinder and the outer wall of the outer layer quartz sleeve, and between the inner wall of the outer layer quartz sleeve and the outer wall of the inner layer quartz sleeve;

[0007] A flow guiding valve body, a liquid inlet, and a liquid outlet. The liquid inlet and the liquid outlet are respectively arranged radially on the flow guiding valve body; the top of the outer cylinder is detachably connected to the flow guiding valve body, and the liquid inlet, the cavity, and the liquid outlet are sequentially communicated for liquid to flow through.

[0008] In a preferred embodiment of the utility model, the liquid inlet and the liquid outlet are arranged on the same axis in the horizontal direction, the liquid inlet is communicated with the outer top of the U-shaped of the cavity, and the liquid outlet is communicated with the inner top of the U-shaped of the cavity.

[0009] In a preferred embodiment of the present utility model, an external thread is provided at the lower part of the outer ring surface of the flow guiding valve body, and a flanging is provided at the upper port of the outer cylinder of the sterilizer; the external thread of the flow guiding valve body is fixedly connected to the flanging of the outer cylinder through an annular nut, and two-stage external sealing rings are provided at the connection contact surface between the two for sealing.

[0010] In a preferred embodiment of the present utility model, an upper bracket is provided at the top of the inner quartz sleeve and the central hole at the bottom of the flow guiding valve body, and the top of the upper bracket is located at the connection between the cavity and the liquid outlet.

[0011] In a preferred embodiment of the present utility model, the upper bracket is made of stainless steel metal wire, and the longitudinal section of the upper bracket is convex-shaped; the semi-circular head at the top of the inner quartz sleeve abuts against the hemispherical arc position of the upper bracket; a circular ring groove is recessed at the top of the outer ring surface of the upper bracket, and the circular ring groove of the upper bracket matches the annular protrusion in the middle of the bottom of the flow guiding valve body; the top of the upper bracket is fitted and clamped with the central inner hole of the flow guiding valve body.

[0012] In a preferred embodiment of the present utility model, a sealing connection is made between the outer periphery of the top of the upper bracket, the top of the outer quartz sleeve, and the outer periphery of the bottom of the flow guiding valve body through an inner sealing ring.

[0013] In a preferred embodiment of the present utility model, a lower bracket is provided between the inner bottom of the outer cylinder and the bottom of the outer quartz sleeve, and the lower bracket is located at the U-shaped bottom turning of the cavity.

[0014] In a preferred embodiment of the present utility model, the lower bracket is made of stainless steel metal wire, and the inner diameter of the circular hole in the middle of the bottom of the lower bracket is larger than the outer diameter of the inner quartz sleeve, allowing the inner quartz sleeve to pass through; four hook-shaped structures are provided inside the upper part of the lower bracket, just supporting the bottom circumference of the outer quartz sleeve.

[0015] In a preferred embodiment of the present utility model, a ballast is provided at the top of the flow guiding valve body, and the bottom of the inner quartz sleeve is electrically connected to the input end of the ballast through an input cable; a sealing nut and a cable gland are sequentially provided on the outer periphery of the bottom of the inner quartz sleeve.

[0016] The beneficial effects of the present utility model are as follows: a small in-line ultraviolet sterilizer, the structures of the liquid inlet and the liquid outlet are the same as those of the water inlet and the water outlet of a common filter, which is convenient for direct installation and use without the need to configure additional installation connection joints; the central axes of the liquid inlet and the liquid outlet are close to each other and horizontally arranged, which is convenient for connecting with the water inlet pipe and the water outlet pipe.

[0017] Both the inner quartz sleeve and the outer quartz sleeve are made of materials with very high ultraviolet transmittance. The liquid flow channels of the water inlet and the water outlet are not directly connected, but are U-shaped and spiral. When the liquid flows through the outer layer and the inner layer of the working cavity, it can receive the ultraviolet light emitted by the lamp tube and be sterilized. In this way, compared with the conventional sterilizer, a longer sterilization time and a larger sterilization dose can be obtained, and a better sterilization effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a small flow-through ultraviolet sterilizer of the present utility model.

[0019] Figure 2 is a side view of a small flow-through ultraviolet sterilizer of the present utility model.

[0020] Reference Numerals in the Drawings:

[0021] 11. Outer cylinder, 12. Outer quartz sleeve, 13. Inner quartz sleeve, 14. Cavity; 15. Ultraviolet lamp tube.

[0022] 21. Flow guide valve body, 22. Liquid inlet, 23. Liquid outlet; 24. Liquid inlet channel, 25. Liquid outlet channel.

[0023] 31. Upper bracket; 32. Inner sealing ring; 33. Lower bracket; 34. Ring nut.

[0024] 41. Ballast, 42. Input cable; 43. Sealing nut, 44. Cable lock head; 45. Ultraviolet window, 46. Hanging bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0026] Refer to Figures 1 to 2 , what is shown in the figure is a small flow-through ultraviolet sterilizer, including: an outer cylinder 11, an outer quartz sleeve 12, and an inner quartz sleeve 13. The inner quartz sleeve 13, the outer quartz sleeve 12, and the outer cylinder 11 are sleeved in sequence from the inside to the outside along the longitudinal direction. The bottom of the outer cylinder 11 is fixedly connected to the bottom of the inner quartz sleeve 13; a U-shaped cavity 14 is respectively formed between the inner wall of the outer cylinder 11 and the outer wall of the outer quartz sleeve 12, and between the inner wall of the outer quartz sleeve 12 and the outer wall of the inner quartz sleeve 13;

[0027] A diversion valve body 21, a liquid inlet 22, and a liquid outlet 23, wherein the liquid inlet 22 and the liquid outlet 23 are respectively arranged radially on the diversion valve body 21; the top of the outer cylinder 11 is detachably connected to the diversion valve body 21, and the liquid inlet 22, the cavity 14, and the liquid outlet 23 are sequentially communicated for liquid to flow through.

[0028] The structures of the liquid inlet 22 and the liquid outlet 23 of the present utility model are the same as those of the water inlet and outlet of a common filter, which is convenient for direct installation and use without the need to configure installation connection joints; the central axes of the liquid inlet 22 and the liquid outlet 23 are close to each other and horizontally arranged, which is convenient for connecting with the water inlet pipe and the water outlet pipe.

[0029] In addition, since both the inner quartz sleeve and the outer quartz sleeve are made of materials with very high ultraviolet transmittance, the liquid flow channels of the water inlet and the water outlet are not linearly conducted, but U-shaped spiral flow; when the liquid flows through the outer layer and the inner layer of the working cavity 14, it can receive the ultraviolet light emitted by the ultraviolet lamp 15 and thus be sterilized; in this way, compared with a conventional sterilizer, a longer sterilization time and a larger sterilization range can be obtained, the liquid sterilization path range is wide, and a better sterilization effect is achieved.

[0030] Further, the liquid inlet 22 and the liquid outlet 23 are arranged on the same axis in the horizontal direction, the liquid inlet 22 is communicated with the outer top of the U-shaped of the cavity 14, and the liquid outlet 23 is communicated with the inner top of the U-shaped of the cavity 14. Specifically, the liquid inlet channel 24 at the connection between the liquid inlet 22 and the cavity 14 and the liquid outlet channel 25 at the connection between the liquid outlet 23 and the cavity 14 are respectively L-shaped; the outer cylinder 11, the outer quartz sleeve 12, the upper bracket 31, and the inner quartz sleeve 13 are respectively coaxially arranged; an ultraviolet lamp 15 is arranged inside the inner quartz sleeve 13.

[0031] Further, an external thread is arranged at the lower part of the outer ring surface of the diversion valve body 21, and a turned-out edge is arranged at the upper port of the outer cylinder 11 of the housing of the sterilizer. The external thread of the diversion valve body 21 and the turned-out edge of the outer cylinder 11 are connected and fixed by an annular nut 34, and sealed by two-stage outer sealing rings at the connection contact surface.

[0032] In this preferred embodiment, an upper bracket 31 is arranged at the center hole at the bottom of the diversion valve body 21 and the top of the inner quartz sleeve, and the top of the upper bracket 31 is located at the connection between the cavity 14 and the liquid outlet 23.

[0033] Further, the upper bracket 31 is constructed of thin stainless steel wire with a diameter of 1 - 1.5 mm, allowing liquid to pass through without causing much resistance to the liquid; its longitudinal section is convex-shaped, and the semi-circular head at the top of the inner quartz sleeve 13 abuts against the hemispherical arc position of the upper bracket 31; a circular groove is recessed at the top of the outer ring surface of the upper bracket 31, which matches the annular protrusion in the middle of the bottom of the flow guiding valve body 21; the top of the upper bracket 31 is fitted and clamped with the central inner hole of the flow guiding valve body 21. The above upper bracket 31 can not only position the closed end of the inner quartz sleeve 13, but also has no influence on the flow of the working liquid.

[0034] Further, a sealing connection is made between the outer periphery of the top of the upper bracket 31, the top of the outer quartz sleeve 12, and the outer periphery of the bottom of the flow guiding valve body 21 through an inner sealing ring 32. Specifically, a ring groove is recessed upward in the middle of the bottom of the flow guiding valve body 21, which is convenient for better sealing and fixing the outer quartz sleeve 12; the longitudinal section of the inner sealing ring 32 is in a shape like the Chinese character 'yu', and the top end of the inner sealing ring 32 is snapped into the ring groove of the flow guiding valve body 21; the upper part of the outer quartz sleeve 12 and the groove position outside the water outlet hole of the flow guiding valve body 21 cooperate through the inner sealing ring 32 (T-shaped rubber ring) to form a sealing and fixing structure.

[0035] In this preferred embodiment, a lower bracket 33 is provided between the inner bottom of the outer cylinder 11 and the bottom of the outer quartz sleeve 12, and the lower bracket 33 is located at the U-shaped bottom turning of the cavity 14.

[0036] Specifically, the lower bracket 33 is also constructed of thin stainless steel wire with a diameter of 1 - 1.5 mm, allowing liquid to pass through without causing much resistance to the liquid; the inner diameter of the round hole in the middle of the bottom of the lower bracket 33 is slightly larger than the outer diameter of the inner quartz sleeve 13, allowing the inner quartz sleeve 13 to pass through it, and providing radial positioning for the lower wire bracket; four hook-shaped structures are arranged inside the upper part of the lower bracket 33, just supporting the bottom circumference of the outer quartz sleeve 12, providing axial and radial positioning for the outer quartz sleeve 12; the lower wire bracket also does not hinder the flow of the working liquid.

[0037] In this preferred embodiment, a ballast 41 is provided at the top of the flow guiding valve body 21, and the bottom of the inner quartz sleeve 13 is electrically connected to the input end of the ballast 41 through an input cable 42; a sealing nut 43 and a cable lock head 44 are sequentially arranged on the outer periphery of the bottom of the inner quartz sleeve 13.

[0038] Specifically, the ballast 41 is mounted on the top of the diversion valve body 21 through a bracket. The bracket of the ballast 41 integrates the ballast 41 and the sterilizer into one, eliminating the need to find a separate installation position for the ballast 41. An ultraviolet viewing window 45 is provided at the connection between the outer periphery of the bottom of the ballast 41 and the diversion valve body 21, facilitating the inspection of the working condition of the ultraviolet sterilizer and timely problem detection. A circular protrusion is vertically provided downward at the lower middle part of the outer cylinder 11. An external thread is provided on the outer ring surface of the circular protrusion, and the external thread of the circular protrusion is connected to the sealing nut 43. The sleeve sealing nut 43 is sealed with the inner quartz sleeve 13 and the outer cylinder 11 of the housing through a matching O-ring. The inner ring surface of the sleeve sealing nut 43 is fixedly connected to the cable gland 44 by means of a threaded connection to connect the lamp input cable 42. The lamp input cable 42 is used to connect the ballast 41 and the ultraviolet lamp 15, providing electrical energy for the operation of the ultraviolet lamp 15.

[0039] In this embodiment, the diameter of the lower part of the outer cylinder 11 of the sterilizer housing gradually decreases; the diameter of the outer quartz sleeve 12 is larger than that of the inner quartz sleeve 13 and is sleeved outside the inner quartz sleeve 13. The top of the inner quartz sleeve 13 is a semi-circular head closed structure and the bottom is open, and the lamp input cable 42 can enter through this opening. The cable is connected to the single-end ultraviolet lamp 15 through a lamp holder. The ultraviolet lamp 15 is placed inside the inner quartz sleeve to prevent it from contacting the liquid. A sterilizer hanging bracket 46 is also provided at the top of the diversion valve body 21. When the sterilizer hanging bracket 46 is used to connect the sterilizer in a hose manner, it is used to install and fix the sterilizer; or the sterilizer hanging bracket 46 is not used, and the sterilizer is directly fixedly installed in a hard pipe connection manner.

[0040] When the above sterilizer is in use, its water inlet can be directly connected to the pipeline to be treated, and then the output pipeline can be continuously connected to its water outlet. There is no need to first find an installation position for the sterilizer like a conventional sterilizer, and then configure accessories such as elbows according to the installation position of the sterilizer to connect the corresponding pipelines; and the ballast 41 also needs to be installed separately, greatly reducing the installation workload and the space occupied by the installation.

[0041] The basic working principle of the present utility model is:

[0042] First, after the liquid flows in through the water inlet of the sterilizer of the present invention, it enters the outer space of the working chamber 14 formed between the outer cylinder 11 of the sterilizer housing and the outer wall of the outer quartz sleeve 12 through the water inlet hole (liquid inlet channel 24) on the flow guiding valve body 21, and flows downward under the push of the water pressure in this area. Then, after the liquid reaches the lower part of the chamber 14, since the lower bracket 33 allows the water flow to pass through; the liquid continues to flow upward through the inner space of the working chamber 14 formed between the inner wall of the outer quartz sleeve 12 and the outer wall of the inner quartz sleeve 13. Finally, it reaches the water outlet of the flow guiding valve body 21 through the upper bracket 31 and the water outlet hole (liquid outlet channel 25) of the flow guiding valve body 21; thus, the entire flow process of the liquid in the sterilizer is completed.

[0043] With this new structure, the upper bracket 31, the lower bracket 33, various sealing rings, and the lamp tube are convenient to replace; components such as the inner quartz sleeve 13, the outer quartz sleeve 12, and the cylinder of the sterilizer can be easily disassembled and cleaned, which is more beneficial to ensuring the long-term and efficient operation of the sterilizer.

[0044] The above shows and describes the basic principle, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A small-scale over-current ultraviolet sterilizer, characterized in that: include: An outer cylinder, an outer quartz sleeve, and an inner quartz sleeve, wherein the inner quartz sleeve, the outer quartz sleeve, and the outer cylinder are sequentially sleeved in the longitudinal direction from the inside to the outside, and the bottom of the outer cylinder is fixedly connected to the bottom of the inner quartz sleeve; a U-shaped cavity is formed between the inner wall of the outer cylinder and the outer wall of the outer quartz sleeve, and between the inner wall of the outer quartz sleeve and the outer wall of the inner quartz sleeve; A guide valve body, a liquid inlet and a liquid outlet, wherein the liquid inlet and the liquid outlet are radially arranged on the guide valve body respectively; the top of the outer cylinder body is detachably connected to the guide valve body, and the liquid inlet, the cavity and the liquid outlet are sequentially connected for liquid circulation.

2. A small-scale over-flow ultraviolet sterilizer as claimed in claim 1, characterized in that: The liquid inlet and the liquid outlet are arranged on the same axis in the horizontal direction, the liquid inlet is communicated with the U-shaped outer top of the cavity, and the liquid outlet is communicated with the U-shaped inner top of the cavity.

3. A small-scale over-flow ultraviolet sterilizer as claimed in claim 1, characterized in that: An external thread is arranged at the lower part of the outer ring surface of the diverter valve body, and an external flange is arranged at the upper port of the outer cylinder of the sterilizer; the external thread of the diverter valve body and the external flange of the outer cylinder are connected and fixed by an annular nut, and two-stage external sealing rings are arranged at the connection contact surface between the two for sealing.

4. A small-scale over-flow ultraviolet sterilizer as claimed in claim 1, characterized in that: An upper bracket is arranged at the top of the inner quartz sleeve and the bottom center hole of the diverter valve body, and the top of the upper bracket is located at the connection point between the cavity and the liquid outlet.

5. A small-scale over-flow ultraviolet sterilizer as claimed in claim 4, characterized in that: The upper bracket is a stainless steel wire, and the longitudinal section of the upper bracket is convex-shaped. The semicircular head at the top of the inner quartz sleeve supports the hemispherical arc position of the upper bracket; the top of the outer ring surface of the upper bracket is concave to form an annular groove, and the annular groove of the upper bracket matches the annular protrusion in the middle of the bottom of the guide valve body; the top of the upper bracket and the central inner hole of the guide valve body are matched and clamped with each other.

6. A small-scale over-flow ultraviolet sterilizer as claimed in claim 5, characterized in that: The top periphery of the upper bracket, the top of the outer quartz sleeve, and the bottom periphery of the diverter valve body are sealed and connected via an inner sealing ring.

7. A small-scale over-flow ultraviolet sterilizer as claimed in claim 1, characterized in that: A lower bracket is arranged between the inner bottom of the outer cylinder and the bottom of the outer quartz sleeve, and the lower bracket is located at the U-shaped bottom bend of the cavity.

8. A small-scale over-flow ultraviolet sterilizer as claimed in claim 7, characterized in that: The lower bracket is made of stainless steel wire. The inner diameter of the circular hole in the bottom middle of the lower bracket is larger than the outer diameter of the inner quartz sleeve, allowing the inner quartz sleeve to pass through. Four hook-shaped structures are arranged inside the upper part of the lower bracket to just support the bottom circumference of the outer quartz sleeve.

9. A small-scale over-flow ultraviolet sterilizer as claimed in claim 1, characterized in that: A ballast is arranged on the top of the guide valve body, and the bottom of the inner quartz sleeve is electrically connected to the input end of the ballast through an input cable; a sealing nut and a cable lock are arranged in sequence on the outer periphery of the bottom of the inner quartz sleeve.

Images