CN2277058Y

CN2277058Y - Water-break protector of water cooling system

Info

Publication number: CN2277058Y
Application number: CN 96244235
Authority: CN
Inventors: 杨厚勇; 盛海云
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-20
Filing date: 1996-11-20
Publication date: 1998-03-25
Anticipated expiration: 2006-11-20

Abstract

The utility model relates to a water-break protector of a water cooling system. Water in a waterway flows to push a slide block to be slid, which causes optical signal transmission between an infrared transmitting tube and an infrared receiving tube to be suddenly changed. The sudden change of the signals are utilized to controlled a system by a control circuit. The utility model fundamentally overcomes the problem that the water-break protection in the prior art is unreliable. Practices prove that the utility model has the advantages of simple structure, low cost, simple manufacture, convenient connection, high reliability, etc., and is suitable for any water cooling systems which need water-break protection.

Description

A kind of water cut-off protection device of novel water-cooling system

The utility model relates to a kind of water cut-off protection device of water-cooling system, is specially adapted to do the circuit water alarm control of laser instrument cooling system.

In laser instrument, the xenon flash lamp pumping laser crystal bar will produce a large amount of heat, therefore, in the laser instrument that must cool off with recirculated water, the situation if laser instrument is cut off the water supply at work, laser crystal bar can burst because of overheated.Therefore water cut-off protection is most important to the water-cooled laser instrument of needs.The technology that is used in the water cut-off protection device at present mainly is following three kinds; a kind of is the water cut-off protection device that adopts magnetic float; its principle is: when pump working; current flow in the water route and promote the magnetic float come-up; the dry-reed relay at the magnetic float adhesive top of come-up; the control Laser Power Devices allow laser works; when water pump quits work or the water route is blocked when not having water to flow; magnetic float breaks away from dry-reed relay; the contact of dry-reed relay disconnects; the control Laser Power Devices quit work laser instrument, and laser instrument is realized water cut-off protection.The problem that this class water cut-off protection device exists is: (1) is owing to be subjected to the influence of gravity; when float only fluctuates; could guarantee this device operate as normal, and the randomness of most of installation environments can not guarantee this service condition, this just may cause this device cisco unity malfunction.(2) power that water flows in the water route can cause between the dry-reed relay at magnetic float and its top apart from changing, this variation can cause acting on the variation of magnetic force size on the dry-reed relay again, cause the contact adhesive instability of dry-reed relay, make the reliability of this class device work relatively poor.Another kind is the water cut-off protection device that adopts pressure sensor is made; the problem that this class device exists is: (1) pressure sensor will be contained in the specific backwater position in the water route; could guarantee the water pump that may occur in the water-cooling system is not worked or the water route is blocked water cut-off protection is provided; the installation site is incorrect, can not realize reliable protection to laser instrument.(2) because water-cooling system is the circulatory system of a sealing; during variations in temperature; the pressure that circulatory system inside produces on pressure sensor is understood the difference of Yin Wendu and is changed; the variation of this pressure can cause pressure sensor under the varying environment temperature; the voltage signal of output changes greatly; make control circuit can't normally reflect the mobility status of water in the water route, lose the water cut-off protection effect.Also has a kind of water cut-off protection device (Chinese patent application number for 91203694.X); the problem that this class device exists is: judge by the change in resistance that whether is full of water generates between two copper pipes whether water flows; the control laser works; and in most water-cooling systems; no matter whether water route Zhong Shui flows, be full of water in the whole pipeline always, the resistance between two copper pipes is the state that water is arranged all the time; so just can not judge that whether water route Zhong Shui flows, and can not realize water cut-off protection to laser instrument.

Therefore, the purpose of this utility model just be to design a kind of simple in structure, reliability is high, is applicable to laser instrument water-cooling system water cut-off protection device.

For this reason, technical solution of the present utility model is that designed water cut-off protection device is by a tubular body, two springs, a tubular slider, a tubulose fixture, an infrared transmitting tube, an infrared receiving tube composition.And press: the order of spring, tubular slider, spring, tubulose fixture is contained in the tubular body, and infrared transmitting tube and infrared receiving tube relative fixed be in both sides, tubular body top shoe position, and vertical with the glide direction of tubular slider.The tubular part of tubular body, tubular slider and fixing spring, all adopt corrosion-resistant, the non-conducting material of high-low temperature resistant, two springs are with soaking rustless stainless steel material for a long time in water.Whole water cut-off protection device is connected in the water route as one section water pipe; when having water to flow in the water route; current promote the internal diameter tubular slider thinner slightly than tubular body internal diameter and slide along water (flow) direction; be positioned at the infrared transmitting tube and the infrared receiving tube of tubular body top shoe both sides this moment; because the centre does not have slide block to stop; infrared receiving tube receives the optical signal that infrared transmitting tube sends, and signal is exported to control circuit, and the control Laser Power Devices allow laser works.When water pump quits work or water route when take place blocking; owing to there is not water to flow in the water route; slide block returns to original position under the effect of spring; because slide block stops; infrared receiving tube can not receive the optical signal that infrared transmitting tube sends; control circuit control Laser Power Devices quit work, and realize water cut-off protection.Because optical signal is not influenced by ambient temperature, having or not of optical signal reflects whether current flow, and sort signal is a kind of switch change amount, can control Laser Power Devices reliably.

The water cut-off protection device of making by technical solution provided by the utility model that is used for the laser instrument water-cooling system; the deficiencies in the prior art have been overcome; have simple in structure; cost is low, and easily processing and fabricating is installed the restriction that is not subjected to water (flow) direction; easy to connect; the reliability height can be installed in the characteristics such as optional position in water route, is applicable to that any laser instrument water-cooling system of water cut-off protection device and other similar cooling system of needing uses.

Fig. 1 is water cut-off protection device of the present utility model and Optical Maser System connection diagram, and wherein water cut-off protection device [3] can be installed in any position in the water route, and needn't consider the flow direction of water.Each numeral is represented respectively among the figure: laser instrument [1], water tank and water pump [2], water cut-off protection device [3].

Fig. 2 is that the utility model water cut-off protection device internal structure links schematic diagram.

It is as follows to provide the utility model embodiment below in conjunction with accompanying drawing:

With reference to Fig. 2, the utility model water cut-off protection device [3] is to be made up of tubular body [6], infrared transmitting tube [4], infrared receiving tube [5], two springs [7,8], tubular slider [9] and tubulose fixture [10].And be linked in sequence by above-mentioned technical solution is described, with reference to Fig. 1, water cut-off protection device [3], water pump and water tank [2] and laser instrument [1] are connected.Its working condition is: behind the power connection, water pump is started working, and has water to flow in the water pipe, and current promotion tubular sliders this moment [8] move, and infrared receiving tube [5] receives the signal that infrared transmitting tube [4] sends, and the control Laser Power Devices allow laser instrument to do.When occurring that water pump quits work or water route when blocking; there is not water to flow in the water pipe; tubular slider [9] is at spring [7; 8] return to the origin-location under the effect; because tubular slider [9] stops; infrared receiving tube [5] does not receive the optical signal that infrared transmitting tube [4] sends, and control circuit control Laser Power Devices quit work, and realize water cut-off protection.

Claims

1. the water cut-off protection device of a water-cooling system; of the present utility model being characterised in that: be by an infrared transmitting tube [4], an infrared receiving tube [5], a tubular body [6], a tubular slider [9], two springs [7; 8] and a tubulose fixture [10] form; and assemble with tubular body [6], and with on the relative respectively position, two holes that is encapsulated in both sides, tubular body [6] top shoe position of infrared transmitting tube [4] with infrared receiving tube [5] by the order of spring [7], tubular slider [9], spring [8], tubulose fixture [10].

2. according to the water cut-off protection device of claim 1, it is characterized in that the relative respectively both sides that are positioned at slide block of described infrared transmitting tube [4] with infrared receiving tube [5].

3. according to the water cut-off protection device of claim 1; it is characterized in that described tubular slider [9] is in the position of retaining between infrared transmitting tube [4] and infrared receiving tube [5] when not having water to flow in the tubular body [6]; when having water to flow in the tubular body [6]; tubular slider [9] slides along the direction that water flows; no longer keep off between infrared transmitting tube [4] and infrared receiving tube [5], cause the sudden change that optical signal transmission is grown out of nothing between infrared transmitting tube [4] and the infrared receiving tube [5].

4. according to the water cut-off protection device of claim 1, it is characterized in that described tubular slider [9] internal diameter is thinner than the internal diameter of tubular body, promote tubular slider when water flows and slide.

5. according to the water cut-off protection device of claim 1; the sequential combination that it is characterized in that described spring [7], tubular slider [9], spring [8], tubulose fixture [10] guarantees that the current of the interior both direction of tubular body [6] can both make tubular slider [9] slide into the position that no longer keeps off between infrared transmitting tube [5] from the position of original retaining between infrared transmitting tube [4] and infrared receiving tube [5].

6. according to the water cut-off protection device of claim 1; it is characterized in that described spring [7,8], tubular slider [9] are after flow action disappears, at spring [7; 8] under the effect, tubular slider [9] returns to the position of original retaining between infrared transmitting tube [4] and infrared receiving tube [5].