CN218916689U

CN218916689U - Leakage alarm for cooler

Info

Publication number: CN218916689U
Application number: CN202320045179.7U
Authority: CN
Inventors: 杨相将; 黎海娇
Original assignee: Taizhou Liqiao Technology Co ltd
Current assignee: Zhejiang Liqiao Technology Co.,Ltd.
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-04-25
Anticipated expiration: 2033-01-06

Abstract

The leakage alarm for the cooler comprises a shell, a floating body component and an electric component; the housing includes a connection flange for connection to an external cooler flange, a base, and a cover; the base is of a cavity structure, and the inner cavity forms a central leakage chamber; the connecting flange is provided with a runner; the floating body assembly comprises a float and a permanent magnet; a permanent magnet mounting seat is arranged on the central leakage chamber; the floater is arranged on the permanent magnet; the electrical component comprises a reed switch and an electrical plug; the cover cap is provided with a reed pipe mounting seat; the electric plug is connected with the cover cap, and one end of the electric plug extends into the cover cap and is electrically connected with the reed switch; and an electric connection hole for wiring is formed at one end of the electric plug extending out of the cover cap. The leakage alarm for the cooler simplifies a leakage path through a specific structure, and improves the alarm sensitivity of the alarm; the wiring mode is changed through the specific wiring structure, so that the wiring operation is simple and convenient, and the reed switch inside the wiring structure cannot be touched, thereby avoiding the damage of the reed switch.

Description

Leakage alarm for cooler

Technical Field

The utility model relates to the technical field of coolers, in particular to a leakage alarm for a cooler.

Background

An oil-water cooler is a commonly used heat exchange device. The oil-water cooler has the condition of leakage in the operation process, so the leakage alarm is generally arranged on the oil-water cooler at present, and when water leakage or oil leakage occurs, the leaked liquid can be detected by the leakage alarm and alarm.

The Chinese patent document CN 2450727Y discloses a leakage alarm, which comprises a shell body, an upper circular cavity and a lower circular cavity, wherein a flange is covered on the upper cavity and is connected with a water cooler, a baffle plate is used for separating the two cavities, liquid is guided into the lower cavity from the flange cavity through a liquid guiding pipe, a cylindrical pontoon is arranged in the lower cavity, a permanent magnetic rod is fixedly connected at the upper part of the pontoon and extends into the upper cavity through the baffle plate, and one or two reed contact switches are arranged at the periphery of the permanent magnetic rod, so that the action of a mechanism is only related to the weights of the pontoon and the permanent magnetic rod, the weight of the pontoon and the permanent magnetic rod is controlled within a specified range, the amount of liquid leakage can be known according to the principle that the weight of buoyancy is equal to the weight of an object, and the purpose of sending an alarm signal when the leakage amount is small can be achieved by reducing the weight of the pontoon and the permanent magnetic rod and increasing the bottom area of the pontoon.

However, the leakage path of the existing leakage alarm is complex, and the alarm sensitivity is low (the leaked liquid reaches 50ml to be warned); when the wire connecting device is installed, the end cover needs to be opened for wire connection, the wire connecting mode is complex, and an internal reed switch is easy to touch in the wire connecting process, so that the reed switch is damaged, and economic loss is caused.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a leakage alarm for a cooler. The leakage alarm for the cooler simplifies a leakage path through a specific structure, and improves the alarm sensitivity of the alarm; the wiring mode is changed by setting a specific wiring structure, so that the wiring operation is simple and convenient, and the reed switch inside the wiring structure cannot be touched, thereby avoiding the breakage of the reed switch.

The technical scheme of the utility model is as follows:

the leakage alarm for the cooler comprises a shell, a floating body component and an electric component;

the housing includes a connection flange for connection to an external cooler flange, a base connected to the connection flange, and a cover connected to the base; the base is of a cavity structure, and the inner cavity of the base forms a central leakage chamber; the connecting flange is provided with a runner for external liquid to enter the central leakage chamber;

the floating body assembly comprises a float and a permanent magnet; a permanent magnet mounting seat is arranged on the central leakage chamber; the permanent magnet is arranged on the permanent magnet mounting seat, and the permanent magnet mounting seat have the same shape and size; the floater is arranged on the permanent magnet and is fixedly connected with the permanent magnet;

the electrical component comprises a reed switch and an electrical plug; the cover cap is provided with a reed switch mounting seat; the reed switch is arranged on the reed switch mounting seat; the electric plug is connected with the cover cap, and one end of the electric plug extends into the cover cap and is electrically connected with the reed switch; and an electric connection hole for wiring is formed at one end of the electric plug extending out of the cover cap.

Compared with the prior art, the leakage alarm for the cooler is characterized in that the central leakage chamber is provided with the floater and the permanent magnet, the reed pipe is arranged below the central leakage chamber, and the connecting flange is provided with the straight runner, so that leakage liquid can quickly reach the central leakage chamber due to the simple structural runner, and a small amount of leakage liquid can trigger an alarm due to the shorter runner, thereby improving the sensitivity of the alarm; the reed switch is internally connected with the special electric plug, and the reed switch is connected with the electric plug through the wiring when in use, so that an alarm is not required to be opened to be connected with the reed switch, and the reed switch is prevented from being damaged due to the fact that the reed switch is touched in the wiring process; and the electric plug transitional connection is adopted, so that the insulation performance can be improved, and the alarm is safer in the use process.

In the leakage alarm for the cooler, a boss is arranged at the position, located inside the cover, of the electric plug, the boss abuts against the cover, threads are arranged at the position, extending out of the cover, of the electric plug, and nuts are connected to the threads. By adopting the specific connection mode, the electric plug and the cover cap are detachable, and when the electric plug is damaged, only the electric plug needs to be replaced.

In the leakage alarm for the cooler, the base is detachably connected with the connecting flange through threads. By adopting the connecting mechanism, the assembly of the alarm is convenient, and after the alarm is alarmed in the use process of the alarm, the liquid in the central leakage chamber can be poured out conveniently and rapidly, so that the alarm can be reused.

In the leakage alarm for the cooler, an O-shaped sealing ring is arranged between the base and the connecting flange. By adopting the structure, the sealing effect of the connection of the base and the connecting flange can be improved by arranging the O-shaped sealing ring.

As optimization, in the leakage alarm for the cooler, the float is provided with a circular tube, the permanent magnet is provided with a through hole, and the circular tube is inserted into the through hole; the side of the permanent magnet is provided with a connecting hole, and a fastening screw is arranged in the connecting hole and used for fixing the floater. By adopting the structure, the floats and the permanent magnets are detachably connected, the assembly is simple and convenient, and when the floats or the permanent magnets are damaged, the floats or the permanent magnets can be singly replaced, so that the device is more economical.

In the leakage alarm for the cooler, the connecting flange is provided with an exhaust hole. By adopting the structure, the vent holes are arranged, after the alarm alarms, workers do not process in time, and liquid can flow out of the vent holes along with the continuous increase of the leakage quantity beyond the position of the vent holes, so that the alarm is prevented from being damaged due to excessive liquid.

In the leakage alarm for the cooler, an annular groove is arranged at the position of the connecting flange, which is contacted with the external cooler. By adopting the structure, the annular groove is arranged to be capable of placing the sealing ring when being connected with the external cooler, so that the sealing effect is enhanced.

Preferably, in the aforementioned leakage alarm for a cooler, the flow passage is tapered at an end remote from the central leakage chamber. With the structure, the inlet of the runner is arranged into a cone shape, so that leaked liquid can conveniently enter the runner.

In the leakage alarm for the cooler, preferably, the shell is made of aluminum alloy. By adopting the material, the alarm has better anti-corrosion performance and higher strength, and has longer service life.

In the leakage alarm for the cooler, the shell is formed by casting. The casting forming mode is adopted, the manufactured shell is good in quality, few in processing steps, time-saving and labor-saving, and suitable for batch production.

Drawings

FIG. 1 is a schematic illustration of a leak alarm for a chiller;

FIG. 2 is a cross-sectional view of a leak alarm for a chiller;

FIG. 3 is a cross-sectional view of the base of FIG. 1;

FIG. 4 is a schematic view of the structure of the permanent magnet of FIG. 1;

fig. 5 is a schematic view of the structure of the electrical plug of fig. 1.

The marks in the drawings are: 1-a shell, 11-a connecting flange, 111-a runner, 112-an exhaust hole, 113-an annular groove, 12-a base, 121-a central leakage chamber, 122-a permanent magnet mounting seat, 13-a cover cap and 131-a reed switch mounting seat; 2-floating body components, 21-floats, 211-round tubes, 22-permanent magnets, 221-through holes and 222-connecting holes; 3-electric components, 31-reed pipes, 32-electric plugs, 321-electric connection holes, 322-bosses, 323-threads and 324-nuts.

Detailed Description

The utility model is further illustrated by the following figures and examples, which are not intended to be limiting. In the following examples, the technical means or common general knowledge in the art is not described in detail.

Examples (see fig. 1-5):

a leakage alarm for a cooler, comprising a shell 1, a floating body assembly 2 and an electric assembly 3; the housing 1 comprises a connection flange 11 for connection to an external cooler flange, a base 12 connected to the connection flange 11, and a cover 13 connected to the base 12; the base 12 is of a cavity structure, and the inner cavity forms a central leakage chamber 121; the connecting flange 11 is provided with a flow passage 111 for external liquid to enter the central leakage chamber 121; the float assembly 2 comprises a float 21 and a permanent magnet 22; a permanent magnet mounting seat 122 is arranged on the central leakage chamber 121; the permanent magnet 22 is arranged on the permanent magnet mounting seat 122, and the shape and the size of the permanent magnet 22 are the same as those of the permanent magnet mounting seat 122; the float 21 is arranged on the permanent magnet 22 and is fixedly connected with the permanent magnet 22; the electrical assembly 3 comprises a reed switch 31 and an electrical plug 32; the cover 13 is provided with a reed switch mounting seat 131; the reed switch 31 is arranged on the reed switch mounting base 131; the electric plug 32 is connected with the cover 13, and one end of the electric plug 32 extends into the cover 13 to be electrically connected with the reed switch 31; the end of the electrical plug 32 extending out of the cover 13 is provided with an electrical connection hole 321 for wiring.

In this embodiment, a boss 322 is disposed at the position of the electrical plug 32 inside the cover 13, the boss 322 abuts against the cover 13, a thread 323 is disposed at the position of the electrical plug 32 extending out of the cover 13, and a nut 324 is connected to the thread 323.

In this embodiment, the base 12 is detachably connected to the connecting flange 11 through threads; an O-shaped sealing ring is arranged between the base 12 and the connecting flange 11.

In this embodiment, the float 21 is provided with a circular tube 211, the permanent magnet 22 is provided with a through hole 221, and the circular tube 211 is inserted into the through hole 221; the side of the permanent magnet 22 is provided with a connecting hole 222, and a fastening screw is arranged in the connecting hole 222 for fixing the float 21.

In this embodiment, the connecting flange 11 is provided with an exhaust hole 112.

In this embodiment, the connection flange 11 is provided with an annular groove 113 at a position contacting the external cooler.

In this embodiment, the end of the flow passage 111 remote from the central leak chamber 121 is tapered.

In this embodiment, the housing 1 is made of aluminum alloy; the housing 1 is cast.

When the leakage alarm for the cooler of the embodiment is used, the sealing ring is placed in the annular groove 113 of the connecting flange 11, the connecting flange 11 is installed on the cooler flange, and the lead wire of the external controller is connected to the electrical connection hole 321 of the electrical plug 32.

The working principle of the leakage alarm for the cooler of the embodiment is as follows: when the cooler leaks, leakage liquid enters the central leakage chamber 121 through the flow channel 111 on the connecting flange 11, the floater 21 drives the permanent magnet 22 to ascend along with the gradual increase of the leakage liquid, the permanent magnet 22 is gradually far away from the reed pipe 31, the reed pipe 31 is disconnected, and the alarm gives an alarm (the alarm in the embodiment gives an alarm when the leakage liquid reaches 40 ml).

The above general description of the utility model and the description of specific embodiments thereof referred to in this application should not be construed as limiting the scope of the utility model. Those skilled in the art can add, subtract or combine the features disclosed in the foregoing general description and/or the detailed description (including examples) to form other technical solutions within the scope of the present application without departing from the disclosure of the present application.

Claims

1. The leakage alarm for the cooler comprises a shell (1), a floating body component (2) and an electric component (3);

the method is characterized in that: the housing (1) comprises a connection flange (11) for connection to an external cooler flange, a base (12) connected to the connection flange (11), and a cover (13) connected to the base (12); the base (12) is of a cavity structure, and the inner cavity of the base forms a central leakage chamber (121); the connecting flange (11) is provided with a flow passage (111) for external liquid to enter the central leakage chamber (121);

the floating body assembly (2) comprises a floating body (21) and a permanent magnet (22); a permanent magnet mounting seat (122) is arranged on the central leakage chamber (121); the permanent magnet (22) is arranged on the permanent magnet mounting seat (122), and the shape and the size of the permanent magnet (22) are the same as those of the permanent magnet mounting seat (122); the floater (21) is arranged on the permanent magnet (22) and is fixedly connected with the permanent magnet (22);

the electrical assembly (3) comprises a reed switch (31) and an electrical plug (32); the cover cap (13) is provided with a reed switch mounting seat (131); the reed switch (31) is arranged on the reed switch mounting seat (131); the electric plug (32) is connected with the cover cap (13), and one end of the electric plug (32) extends into the cover cap (13) to be electrically connected with the reed switch (31); the end of the electric plug (32) extending out of the cover cap (13) is provided with an electric connection hole (321) for wiring.

2. The leakage alarm for a cooler according to claim 1, wherein: the electric plug (32) is located inside the cover (13) and is provided with a boss (322), the boss (322) is propped against the cover (13), the electric plug (32) extends out of the cover (13) and is provided with threads (323), and the threads (323) are connected with nuts (324).

3. The leakage alarm for a cooler according to claim 2, wherein: the base (12) is detachably connected with the connecting flange (11) through threads.

4. A leak alarm for a cooler as defined in claim 3, wherein: an O-shaped sealing ring is arranged between the base (12) and the connecting flange (11).

5. The leakage alarm for a cooler according to claim 4, wherein: a circular tube (211) is arranged on the floater (21), a through hole (221) is formed in the permanent magnet (22), and the circular tube (211) is inserted into the through hole (221); the side of the permanent magnet (22) is provided with a connecting hole (222), and a fastening screw is arranged in the connecting hole (222) and used for fixing the floater (21).

6. The leakage alarm for a cooler according to claim 5, wherein: an exhaust hole (112) is arranged on the connecting flange (11).

7. The leakage alarm for a cooler according to claim 6, wherein: an annular groove (113) is arranged on the connecting flange (11) at a position contacted with the external cooler.

8. The leakage alarm for a cooler according to claim 7, wherein: the end of the flow passage (111) remote from the central leakage chamber (121) is tapered.

9. A leak alarm for a cooler according to any one of claims 1 to 8, wherein: the shell (1) is made of aluminum alloy.

10. The leakage alarm for a cooler according to claim 9, wherein: the shell (1) is formed by casting.