CN208458806U - A kind of knockdown gas flowmeter - Google Patents

Abstract

The utility model belongs to processing technology device arts, more particularly, to a kind of knockdown gas flowmeter.The upper and lower ends sealing of the float-type pipe is plugged on the inside of attachment base, is connected with connecting flange on the outside of attachment base；The centre of the float-type pipe is provided with support rod, and support rod movable sleeve is connected to float；Seal box is fixed on the right side of the float-type pipe, the upper and lower ends of seal box are provided with to be connect by connecting tube with the connection socket on the outside of attachment base with its internal Unidirectional solenoid valve being connected to, Unidirectional solenoid valve outside；Controller is fixed on the outside of the seal box.It uses dual gas dosing means, guarantees the accuracy of gas dosing, simultaneously, additionally it is possible to alternate use, avoid to guarantee that equipment is normally run when single failure.

Description

A kind of knockdown gas flowmeter

Technical field

The utility model belongs to processing technology device arts, more particularly, to a kind of knockdown gas flowmeter.

Background technique

The gas flowmeter of presently used various types, the mostly volume flow of meter gaseous.Gas mass flow Meter is mainly characterized by not influenced by temperature and pressure oscillation, and display reading directly indicates matter person's flow of gas, It is mounted on the gas flow for recording and flowing through in pipeline.

The gas flowmeter of presently used various types, the mostly volume flow of meter gaseous.Gas mass flow Meter is mainly characterized by not influenced by temperature and pressure oscillation, and display reading directly indicates matter person's flow of gas.It With series of advantages: 1, can be selected under conditions of normal pressure, high pressure or negative pressure；It 2, can be or even again high in room temperature, 100 degree At a temperature of operate normally；3, applicable range ability is wide, and the place that can be used for small flow in laboratory can also be used for factory Large-scale plant in production；4, the resistance drop of flowmeter is atomic；5, the ability of anti-medium corrosion is strong；6, measuring accuracy is high；7, defeated Electric signal out, can teletransmission show, be also convenient for and the cooperation of other instrument after realize discharge record automatic control or accumulative.

But traditional gas flow device measurement means are relatively simple, are merely able to be replaced after failure.

Utility model content

The purpose of this utility model is that in view of the drawbacks of the prior art and insufficient, provide that a kind of structure is simple, and design is closed Reason, knockdown gas flowmeter easy to use, it uses dual gas dosing means, guarantees the accurate of gas dosing Property, simultaneously, additionally it is possible to alternate use, avoid to guarantee that equipment is normally run when single failure.

In order to achieve the above purposes, the technical solution adopted by the utility model is: it include float-type pipe, connecting flange, Attachment base, support rod, float, seal box, Unidirectional solenoid valve, connection socket, controller；Up and down the two of the float-type pipe End sealing is plugged on the inside of attachment base, is connected with connecting flange on the outside of attachment base；The centre of the float-type pipe is set It is equipped with support rod, support rod movable sleeve is connected to float；Be fixed with seal box on the right side of the float-type pipe, seal box it is upper Lower both ends, which are provided with, passes through the company on the outside of connecting tube and attachment base with its internal Unidirectional solenoid valve being connected to, Unidirectional solenoid valve outside Plug receptacle connection；Controller is fixed on the outside of the seal box.

Preferably, being provided with reserved hole slot on the right side of the seal box, the fixed flexible pressure in inside of hole slot is reserved Power diaphragm, the centre of elastic pressure diaphragm are provided with hard contact, and the trigger switch pair of the inside of hard contact and controller It should connect.

Preferably, the fixed slot for being internally provided with float-type pipe of the attachment base.

Preferably, the controller is electrically connected with the Unidirectional solenoid valve of seal box upper and lower ends respectively, and upper unidirectional Solenoid valve is connected from inside to outside, and lower Unidirectional solenoid valve is connected from outside to inside.

After adopting the above structure, the utility model has the beneficial effect that a kind of knockdown gas described in the utility model Flowmeter, it uses dual gas dosing means, guarantees the accuracy of gas dosing, simultaneously, additionally it is possible to which alternateing makes With avoiding to guarantee that equipment is normally run when single failure.The utility model has structure simple, and setting rationally, makes The advantages that at low cost.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is 3 structural schematic diagram of attachment base of the utility model.

Fig. 3 is 6 connection schematic diagram of seal box of the utility model.

Description of symbols:

Float-type pipe 1, connecting flange 2, attachment base 3, support rod 4, float 5, seal box 6, Unidirectional solenoid valve 7, connection Socket 8, controller 9, fixed slot 10, elastic pressure diaphragm 11, hard contact 12.

Specific embodiment

With reference to the accompanying drawing, the utility model is further described.

Referring to as shown in Figure 1-Figure 3, present embodiment adopts the following technical scheme that it includes float-type pipe 1, even Acting flange 2, attachment base 3, support rod 4, float 5, seal box 6, Unidirectional solenoid valve 7, connection socket 8, controller 9；Described is floating The upper and lower ends sealing of subflow buret 1 is plugged on the inside of attachment base 3, and the outside of attachment base 3 is connected with connecting flange 2；It is described The centre of float-type pipe 1 be provided with support rod 4,4 movable sleeve of support rod is connected to float 5；The right side of the float-type pipe 1 Side is fixed with seal box 6, and the upper and lower ends of seal box 6 are provided with and its internal Unidirectional solenoid valve 7 being connected to, Unidirectional solenoid valve 7 Outside is connect by connecting tube with the connection socket 8 in 3 outside of attachment base；The outside of the seal box 6 is fixed with controller 9.

Wherein, the right side of the seal box 6 is provided with reserved hole slot, and the inside of reserved hole slot is fixed with elastic pressure film Piece 11, the centre of elastic pressure diaphragm 11 is provided with hard contact 12, and hard contact 12 and the triggering of the inside of controller 9 are opened Pass is correspondingly connected with；Wherein, described when the inside of 6 seal box 6 of seal box holds 50ML.When 6 inside gassy of seal box, bullet Property pressure-sensitive diaphragm 11 be under pressure extruding, touch the trigger switch of the inside of hard contact 12 and controller 9, controller 9 is controlled Unidirectional solenoid valve 71 is opened in system, lower Unidirectional solenoid valve 72 is closed, and is recorded and be inflated to the time interval between deflating；

In addition, the fixed slot 10 for being internally provided with float-type pipe 1 of the attachment base 3；The controller 9 divides It is not electrically connected with the Unidirectional solenoid valve 7 of 6 upper and lower ends of seal box, and upper Unidirectional solenoid valve 71 is connected from inside to outside, lower unidirectional electricity Magnet valve 72 is connected from outside to inside.

The working principle of this specific embodiment:: upper Unidirectional solenoid valve 71 and lower unidirectional electromagnetism are closed by controller first Valve 72 carries out the metering work of gas using float-type pipe 1, and when gas duct interior pressure oscillation is larger, float 5 can not When being maintained at metastable position, lower Unidirectional solenoid valve 72 is opened by controller 9, seal box 6 is inflated and is counted When；Case 6 to be sealed closes lower Unidirectional solenoid valve 72 after being full of, Unidirectional solenoid valve 71 is vented seal box 6 and terminates timing in unlatching； Pass through the multiple measuring and calculation gas flow of volumetric method.

After adopting the above structure, present embodiment has the beneficial effect that a kind of combination described in present embodiment The gas flowmeter of formula, it uses dual gas dosing means, guarantees the accuracy of gas dosing, simultaneously, additionally it is possible to phase It is mutually used alternatingly, avoids to guarantee that equipment is normally run when single failure.

The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model Spirit and scope should all cover in the scope of the claims of the utility model.

Claims (4)

1. a kind of knockdown gas flowmeter, it is characterised in that: it includes float-type pipe (1), connecting flange (2), connection Seat (3), support rod (4), float (5), seal box (6), Unidirectional solenoid valve (7), connection socket (8), controller (9)；Described The upper and lower ends sealing of float-type pipe (1) is plugged on the inside of attachment base (3), and attachment base is connected with connection method on the outside of (3) Blue (2)；The centre of the float-type pipe (1) is provided with support rod (4), and support rod (4) movable sleeve is connected to float (5)；Institute It is fixed with seal box (6) on the right side of the float-type pipe (1) stated, the upper and lower ends of seal box (6) are provided with to be connected to its inside Unidirectional solenoid valve (7), connect by connecting tube with the connection socket (8) on the outside of attachment base (3) on the outside of Unidirectional solenoid valve (7)； Controller (9) are fixed on the outside of the seal box (6).

2. a kind of knockdown gas flowmeter according to claim 1, it is characterised in that: the seal box (6) Right side is provided with reserved hole slot, and the inside of reserved hole slot is fixed with elastic pressure diaphragm (11), in elastic pressure diaphragm (11) Between be provided with hard contact (12), and hard contact (12) and the trigger switch of the inside of controller (9) are correspondingly connected with.

3. a kind of knockdown gas flowmeter according to claim 1, it is characterised in that: the attachment base (3) It is internally provided with the fixed slot (10) of float-type pipe (1).

4. a kind of knockdown gas flowmeter according to claim 2, it is characterised in that: the controller (9) point It is not electrically connected with the Unidirectional solenoid valve (7) of seal box (6) upper and lower ends, and upper Unidirectional solenoid valve (71) is connected from inside to outside, under Unidirectional solenoid valve (72) is connected from outside to inside.