CN2081083U - Transmitting and reflecting type bicolor level gauge - Google Patents

Abstract

The utility model provides an improved transmitting and reflecting type bicolor level gauge. A green plate is arranged on the apical angle facet of a rectangular prism, a red sheet is arranged on the rectangular plane of the rectangular prism at the side of the reflector, the red sheet and the plane form a 5 DEG-6.5 DEG angle, the ratio of the length of the reflector and the length of the red sheet is 0.6: 1-0.8: 1, the upper ends of the two components are aligned. The utility model can clearly and reliably display water level under the condition of turbid boiler water, having the advantages of clear limit of red and green, simple structure, and high safety, which can be conveniently dismounted to clear without influencing the normal work of the boiler.

Description

Transmitting and reflecting type bicolor level gauge

The utility model belongs to a kind of device that shows that boiler liquid level changes.

The two-colour fluviograph that uses on existing low pressure steam boiler and the pressure vessel is of a great variety, transmission-type, reflective, anti-transmission-type and transflective etc. are arranged, wherein the transmission-type structure is complicated, and when boiler water is muddy or glass plate hang when dirty, water level shows not obvious, even green becomes coffee color, distinguishes not obvious with redness; And a little less than the reflective green glow demonstration, especially green colour table is hung dirt in boiler water after, green becomes comprehensive look, is difficult to differentiate with redness, gives and judges that water level brings difficulty; Though characteristics such as it is little that anti-transmission-type has a volume, easy to install also exist the dirt easy to hang of optical glass groove, influence the shortcoming that green glow shows; Transflective structure water level gauge, its distinct disadvantage is: adopt the transmit green plate to show that the effect of water level is relatively poor, be difficult to difference when boiler water is muddy.The technical scheme of Chinese patent application 86202222U for this reason, with red, green color location swap, ordinary light source changes the band colour light source into, thereby the demonstration look that causes water is for red, the demonstration look of vapour is green, though the demonstration of water level has been strengthened, has run counter to the people's conventional custom.

The purpose of this utility model provides a kind of improved transflective two-colour fluviograph, adopting under the common white light source situation, the green that shows water is strengthened, when water-quality ratio is muddy, still can clearly show liquid level, simultaneously can easily water level gauge be pulled down flushing, and do not influence normal operation of boiler, make it often keep good working order.

The purpose of this utility model is achieved in that it comprises that mainly into water admission parts, water outlet go out vapour parts, flush valve body wall, flushing port chock plug, blowdown valve body, dash board, gauge stand, right-angle prism, red tab, green sheet, the green sheet of V-type, reflector and light source and form.Its technical scheme feature is: on the drift angle facet of right-angle prism, place green sheet, right-angle prism be positioned at place on the right-angle plane of reflector one side to become with this plane 5 °-6 ° 30 ' red tab; The length ratio of reflector and red tab is 0.6:1 to 0.8:1, the alignment of two parts upper end.When in the V-type groove of gauge stand water being arranged, the light that is sent by light source is after the reflector reflection, pass red tab and become ruddiness, and reflected by right-angle prism, can not penetrate from view window, and the light of light source becomes green glow after passing green plate, after the right-angle prism transmission, pass water liquid through the green sheet reflection of V-type, and green is strengthened, penetrate from view window through right-angle prism then; When in the V-type groove of gauge stand vapour being arranged, the light of light source passes after red tab becomes ruddiness after reflector reflection, through the reflection of the inclined-plane of right-angle prism, penetrate from view window, and the green glow that passes green sheet is reflected away by right-angle prism, can not penetrate from view window.The above-mentioned red tab and the right-angle plane of right-angle prism make red the reinforcement at angle, and be brighter from the view window ejaculation through the ruddiness after the light path, and the length ratio of reflector and red tab is to be to guarantee the liquid level clear display, and viewing distance can reach 60 meters farthest.

Consideration can often be pulled down water level gauge easily and be washed, and does not influence normal operation of boiler again, and water inlet admission parts connect water inlet admission valve body by ring flange, and water outlet goes out the vapour parts and connects water outlet gas outlet valve body by ring flange.Close the valve on two valve bodies, can pull down water level gauge at any time and wash, keep the cleaning of water level gauge.

The utility model has the advantages that: under the situation of boiler water muddiness, still can clear reliable demonstration water level, the dichromatism boundary is clearly demarcated, and simple in structure, and is safe in utilization, under the situation that does not influence normal operation of boiler, can pull down easily at any time and clean.

Below in conjunction with accompanying drawing the utility model embodiment is described further:

Fig. 1 is the utility model structural representation.

Fig. 2 is the B-B cut-open view of Fig. 1, and illustrates when in the V-type groove water being arranged the optical path states of green light.

Fig. 3 is the B-B cut-open view of Fig. 1, illustrates when in the V-type groove vapour being arranged the optical path states of red light.

Fig. 4 is that a right-angle plane of red glass sheet and right-angle prism is the angle synoptic diagram.

See Fig. 1-4, water inlet admission valve body 1 is connected with flush valve body wall 2 by ring flange, and flushing port chock plug 3 is screwedly mounted in the flushing port of flush valve body wall 2; Water outlet gas outlet valve body 6 is connected with blowdown valve body 5 by ring flange; Dash board 4 and gauge stand 7 are connected by bolt, reflector 11 is by being bolted on the side cover plate 14, fluorescent lamp 13 is assembled in the inboard of side cover plate 14, be lined with liner between two right-angle planes of right-angle prism 9 and the surface of contact of dash board 4, be lined with liner between the surface of contact of the inclined-plane of right-angle prism 9 and gauge stand 7, on the drift angle facet of right-angle prism 9, place green glass sheet 12, bonding by transparent adhesive tape.Place red glass sheet 10 on one right-angle plane of right-angle prism 9, its end withstands on the stop portion on the dash board 4, the other end is risen by the green glass sheet 12 and the crown, protruding end, becomes 5 ° of-6 ° of 30 ' α angles with this right-angle plane of right-angle prism 9, the α best angle be 5 ° 50 '.Red glass sheet 10 bonds with transparent adhesive tape with the contact site of right-angle prism 9, green glass sheet 12.Reflector 11 is 0.6:1 to 0.8:1 with the length ratio of red glass sheet 10, and optimum ratio is 0.68:1.The upper end alignment of two parts.Have the V-type groove on gauge stand 7, the green sheet 8 of V-type is equipped with on the surface of V-type groove; View window 15 is arranged on dash board 4.Figure 2 shows that in the V-type groove of gauge stand 7 liquid is arranged, a part of light that light source sends is through the reflection of reflector 11, pass red glass sheet 10, after the refraction of right-angle prism 9, can not penetrate from view window 15, and another part transmittance green glass sheet 12 that light source sends, after the refraction of right-angle prism 9, by green sheet 8 reflections of V-type, in view window 15, penetrate, thereby demonstration is green glow; Figure 3 shows that in the V-type groove of gauge stand 7 gas is arranged, a part of light that light source sends is through the reflection of reflector 11, after passing red glass sheet 10, ruddiness is after the reflection of right-angle prism 9, penetrate from view window 15, thereby what show is ruddiness, and another part light passes green glass sheet 12, after the refraction of right-angle prism 9, can not penetrate from view window 15.Therefore observe from view window 15, have water to be green, have vapour to take on a red color, when water, vapour two states are arranged, show green, red two kinds of colors, red green interface is exactly a waterline.

Claims (4)

1, a kind of transflective two-colour fluviograph, comprise into water admission parts, water outlet go out the vapour parts, towards Xian's valve body, form towards the green sheet of Xian hole chock plug, blowdown valve body, dash board, gauge stand, right-angle prism, red tab, green sheet, V-type, reflector and light source, it is characterized in that: place green sheet on the drift angle facet of right-angle prism, right-angle prism is positioned on the right-angle plane of reflector one side places the red tab that becomes 5 ° of-6 ° of 30 ' angles with this plane; The length ratio of reflector and red tab is 0.6: 1 to 0.8: 1, the alignment of two parts upper end.

2, two-colour fluviograph according to claim 1 is characterized in that into water admission parts are connected with into water admission valve body by ring flange, and water outlet goes out the vapour parts and is connected with water outlet gas outlet valve body by ring flange.

3, two-colour fluviograph according to claim 1 is characterized in that the right-angle plane that right-angle prism is positioned at reflector one side places the red tab that becomes 5 ° of 50 ' angles with this plane.

4, two-colour fluviograph according to claim 1, the length ratio that it is characterized in that reflector and red tab is 0.68:1.

Images