CN2903930Y - Solar Water Heater Water Level Gauge - Google Patents

Abstract

The Solar heater water meter with a rotational flow device is an improving on the mechanical solar heater water meter, which is characterized in that the out shell of the vane wheel has hole-pipes which form the rotational flow devices, the hole-pipes are inclined going through the out shell. The hole-pipes are divided into two groups, one is upper layer hole-pipes and the other is lower hole-pipes, wherein, the two groups inclined completely going through the circumference direction in the same level completely contrary out of the upper and lower parts respectively; the lower layer pipes is communicated directly with the cold water inlet, and the upper layer pipes is communicated directly with cold water outlet. The utility model with rotational flow device balance the solar heater hot and cold water flow velocities and pressure, make the vane start and stagnation has no impact influences, which be measured more accurate, and installed conveniently, but also the cost is quite ordinary to the mechanical meter, the structure is no complex and maintenance is simple.

Description

Solar Water Heater Water Level Gauge

Technical field:

The utility model relates to measuring instrument technology, in particular to a solar water heater water level gauge.

Background technique:

Along with the universal application of solar water heaters, various water level display instruments and meters supporting it have emerged as the times require. At present, most of the water level gauges of solar water heaters are electronic and inductive. This kind of water level gauge is generally expensive, and the installation and maintenance are not convenient, and because the electronic components are easy to scale and rust due to long-term contact with water, they will affect the reliability of measurement. Mechanical solar water heater water level gauges (such as: GN97241277.6, GN99228023.0) can overcome the above defects, but because solar water heaters generally have high water pressure and fast flow when cold water enters, and low water pressure and slow flow when hot water is exported, In addition, water is affected by thermal expansion factors. After the hot water is used up, the indicator needle of the water meter often cannot be reset to zero, and it is very inconvenient to adopt a manual needle setting mechanism to set zero.

Invention content:

The utility model proposes a water level gauge for a solar water heater, the main purpose of which is to achieve accurate measurement under the premise of visually displaying the water storage, zero setting, full setting and water flow state.

Technical solution of the utility model

The utility model is an improvement on the water level gauge of a mechanical solar water heater, which includes a watch case, a watch cover, a dial, a water volume pointer, a flow direction pointer, a blade wheel, a multi-stage gear reduction system, a zero-setting, a full-filling positioning device and an advanced 1. The water outlet is characterized in that a swirl device is added. The swirl device is provided with a hole tube on the outer shell of the blade wheel, and the direction of the hole tube is obliquely cut through the outer shell. The hole tubes are divided into lower hole tubes and upper layer hole tubes. The lower layer hole tubes are set on the lower half of the shell, on the same circumferential horizontal plane, and directly communicate with the cold water inlet (that is, the hot water outlet). The upper layer hole tubes are set on the shell. The upper half is on the same circumferential horizontal plane, and directly communicates with the cold water outlet (that is, the hot water inlet). And the oblique direction of the hole tube in the lower layer is completely opposite to that of the hole tube in the upper layer.

The beneficial effects of the utility model:

(1) The specially designed swirl device of the utility model makes the cold and hot water flow in and out of the solar water heater, the water flow velocity and the pressure are balanced, and the start and stagnation of the blade wheel are not affected by the impact force, so the measurement is more accurate.

(2) The utility model is suitable for supporting use with a solar water heater whose cold water inlet and hot water outlet are in the same pipeline. It is easy to install, the cost is equivalent to that of an ordinary mechanical water meter, and the structure is not complicated, so the maintenance is also simple.

Description of drawings:

Accompanying drawing 1 is the utility model sectional structure schematic diagram

Accompanying drawing 2 is the schematic diagram of the surface structure of the table cover of the present invention

Accompanying drawing 3 is the schematic diagram of the section structure of the blade wheel housing of the swirl device of the present invention

Accompanying drawing 4 is a schematic diagram of the B-B sectional structure of accompanying drawing 3

Accompanying drawing 5 is the schematic diagram of A-A sectional structure of accompanying drawing 3

Detailed ways:

As shown in Figure 1, watch case 1 includes multi-stage gear reduction system 2 and box body 21 thereof, swirl device 3 and blade wheel 31 outer casing 32 thereof, and cold water inlet (hot water outlet) 4, cold water outlet ( Hot water inlet) 5, the top of watch case 1 is watch cover 6. The outer casing 32 of the swirl device 3 is provided with orifices, and the directions of the lower orifices 33 and the upper orifices 34 are obliquely cut through the lower part of the outer casing 32 and the same level of the upper part of the outer casing 32 respectively. The circumferential direction (as shown in Figure 4 and Figure 5). The orifices (33, 34) obliquely pass through the circumferential direction of the outer casing 32, and the angular range is 30°-60° in terms of an acute angle at which the axis of the orifices intersects the tangent of the casing circumference. There are at least four hole tubes (33, 34) distributed in the same horizontal circumferential direction equi-orientationally or symmetrically. The hole section of the hole tube can be a round hole, a square hole, an elliptical hole, or a polygonal hole. And the arc length of the hole pipe passing through the circumferential section of the outer casing is 0.5-2.5MM.

The working process of the utility model is described below in conjunction with each accompanying drawing:

(1) When the solar water heater needs to enter cold water, water flows in from the cold water inlet 4, and enters the swirl device through each lower hole tube 33 arranged in the circumferential direction, and the water of the swirl pushes the blade wheel 31 to rotate counterclockwise. When the blade wheel rotates, The gear on the vane wheel meshes with the multi-stage gear reduction system 2, the water volume pointer 7 under the cover glass deflects counterclockwise, the flow direction pointer 8 indicates the water flow state, and the full positioning pin 9 realizes the full function. At the same time, cold water flows to the cold water outlet 5 from each upper floor hole pipe 34 again.

(2) When the solar water heater needs to release hot water, the hot water enters from the hot water inlet 5 (that is, the cold water outlet 5) and enters through each upper hole pipe 34, and then flows from the lower floor hole pipe 33 to the hot water outlet 4 (that is, the cold water outlet 5). import 4). Because the inclination of the lower tube hole 33 is completely opposite to that of the upper tube hole 34, the overall process forms a vortex that rotates in the opposite direction (clockwise) when the cold water enters, thereby driving the blade wheel 31 to rotate in the opposite direction. Similarly, the multi-stage gear The deceleration system 2 drives the water volume pointer 7 to reversely deflect, and the indicated value of the water volume pointer 7 is the real-time water storage in the water tank, and the water consumption can be measured. And the set zero setting pin 10 can realize the zero setting function again. Since the orifice and the blade wheel shaft form a certain deflection angle equally, no matter whether water enters or discharges water out of the swirl device, the rotating water flow can easily drive the blade wheel to rotate in the forward and reverse directions, thereby achieving accurate metering.

Claims (5)

1, a kind of solar water heater water level scale, comprise watchcase (1), table lid and dial plate (6), water yield pointer (7), flow to pointer (8), put full register pin (9), zero setting register pin (10), blade wheel (31), multi-stage gear deceleration system (2), cooling water inlet and hot water outlet (4), cooling water outlet and hot water inlet (5), it is characterized in that: it also has additional swirling device, this swirling device (3) is to establish perforated pipe (33 on the shell body (32) of blade wheel (31), 34), the oblique shell body (32) that passes of hole pipe, Kong Guanfen upper strata Kong Guan (34), lower floor's hole pipe (33), upper strata Kong Guan (34), lower floor's hole pipe (33) is distributed on the housing respectively, bottom same surface level separately circumferential, both homoclines are worn shell body and direction is opposite.

2, a kind of solar water heater water level scale according to claim 1 is characterized in that: hole pipe is oblique to pass the angle of shell body, in the acute angle between the crossing tangent line of hole tube's axis and shell body circumference, and angular range is 30 °-60 °.

3, a kind of solar water heater water level scale according to claim 1 is characterized in that: hole pipe (33,34) ground, orientation such as same horizontal circle is circumferential or symmetry be distributed to rare 4.

4, a kind of solar water heater water level scale according to claim 1, it is characterized in that: the cross section, hole of described hole pipe can be circular hole, square hole, elliptical aperture, polygonal hole.

5, a kind of solar water heater water level scale according to claim 1 is characterized in that: and the arc length that the hole pipe passes the shell body circumferential section is 0.5-2.5MM.

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