CN214583452U - Roots flowmeter takes gas to trade oil device - Google Patents

Abstract

A Roots flowmeter oil change device with gas comprises an old oil tank, a new oil tank, an old oil control valve, a new oil control valve, an oil change pump, a quick-change connector, a self-sealing oil change device and an electric control device, wherein the old oil tank is connected with the old oil control valve in series, the new oil tank is connected with the new oil control valve in series, the oil change pump is arranged between the old oil control valve and the new oil control valve, the quick-change connector is connected with an oil outlet of the oil change pump in a sealing mode, the self-sealing oil change device is connected with an oil discharge port of the Roots flowmeter in a sealing mode, and the electric control device is electrically connected with the old oil control valve, the new oil control valve and the oil change pump. It can realize changing oil to roots's flowmeter under the state of not stopping gas, and discharges old oil and pour into new oil and can go on in succession, can realize changing oil under the state of not stopping gas, has improved the convenience of changing oil moreover, can also increase substantially the efficiency of changing oil, and whole oil changing process only needs one person to operate, and is long within 2 minutes.

Description

Roots flowmeter takes gas to trade oil device

Technical Field

The utility model relates to a roots's flowmeter trades the oil field, especially relates to roots's flowmeter takes gas to trade oil device.

Background

The Roots type flowmeter is a gas flowmeter, and is widely applied to a gas conveying line, and the Roots type flowmeter is arranged between a gas source and users to meter the gas consumption of each user, and the working principle is as follows: when the air flow enters the flowmeter, it is first decelerated by a pilot fluid of a particular authority. Under the action of the fluid, the turbine blades form a fixed angle with the flow direction of the fluid, and the turbine inoculation generates a transition energy moment, and the transition is carried out at the tail end of the turbine after the resistance moment and the competition moment are restrained. When the moments reach imbalance, the speed is constant and the angular rate of the turbo-shift transition is linearly related to the flow.

In order to ensure the accuracy of metering, the Roots flowmeter in the gas pipeline must be periodically changed in oil, otherwise, the metering accuracy is affected. At present, both ends at roots's flowmeter all are equipped with manual valve, in the routine maintenance process of changing oil, if need to change oil to roots's flowmeter must close the valve of setting around roots's flowmeter, require that the customer can only operate after must stopping using gas, simultaneously, must two people's collaborative work during the operation of changing oil, alone supervision, one person's operation, all gas appliances of relevant customer can not use when changing oil, not only user report and complain about greatly, gas supply unit is also very headache, because current oil change device can't realize under the state of not stopping gas, not only change oil work efficiency low, but also the oil process of changing oil still has gas escape and old oil drippage pollution in the outage, gas escape has serious potential safety hazard. The oil change of the Roots flowmeter can be realized under the condition of no gas stop by the aid of scientific and technological novelty retrieval and patent retrieval of the applicant. According to actual statistics, the average oil change time of a single Roots flowmeter needs 73 minutes by adopting the conventional gas-stopping oil change method and cooperating two persons. For gas operation enterprises, the workload of oil change maintenance is large, the cost is high, the potential safety hazard is difficult to eliminate, and the problem must be solved.

The utility model has the following contents:

in order to overcome prior art's is not enough, the utility model provides a roots's flowmeter takes gas oil changing device, it can realize changing oil to roots's flowmeter under the not gas state that does not stop, and discharges old oil and pour into new oil and can go on in succession, can realize changing oil under the not gas state that does not stop, has improved the convenience of changing oil moreover, can also increase substantially the efficiency of changing oil, whole oil changing process only need one person to operate, long within 2 minutes.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a roots's flowmeter takes gas to trade oil device which characterized in that: the oil change pump is arranged between the old oil control valve and the new oil control valve, the quick-change connector is in sealing connection with an oil outlet of the oil change pump, the self-sealing oil change device is in sealing connection with an oil discharge opening of the Roots flowmeter, and the electric control device is electrically connected with the old oil control valve, the new oil control valve and the oil change pump.

The use method of the Roots flowmeter with the gas oil changing device comprises the following steps: the self-sealing oil exchanger is connected to an oil discharge port of the Roots flowmeter in a sealing mode, the quick-change connector is in sealing butt joint with the self-sealing oil exchanger on the Roots flowmeter and locked, the electric control device is started, the old oil control valve and the oil exchange pump are powered on and opened at the moment, the oil exchange pump is powered on and rotates forwards, old oil in the Roots flowmeter is pumped out and injected into the old oil tank, after the old oil is pumped out, the electric control device enables the old oil control valve to be powered off and closed, the new oil control valve is powered on and opened, the oil exchange pump rotates backwards, oil in the new oil tank is pumped out through the oil suction pipe and the new oil control valve and is directly injected into the Roots flowmeter under pressure, and therefore oil exchange of the Roots flowmeter is completed under the state of no-stop.

The Roots flowmeter oil change device with gas also comprises a fixing device and a protective shell, wherein an old oil tank, a new oil tank, an old oil control valve, a new oil control valve, an oil change pump, a quick-change connector and an electric control device are all arranged on the fixing device, the protective shell is detachably and fixedly connected with the fixing device, and a cover cap is realized for the old oil tank, the new oil tank, the old oil control valve, the new oil control valve, the oil change pump, the quick-change connector and the electric control device.

The Roots flowmeter with the gas oil change device is optimized, the fixing device comprises a bottom plate, an oil tank rotary joint seat, an electromagnetic valve installation seat and an electric control chamber, the oil tank rotary joint seat, the electromagnetic valve installation seat and the electric control chamber are directly or indirectly fixed on the bottom plate, an old oil tank and a new oil tank are respectively and spirally connected onto the oil tank rotary joint seat, an old oil control valve and a new oil control valve are installed on the electromagnetic valve installation seat, an oil change pump is installed on the bottom plate, and a battery and a control circuit in the electric control device are both installed in the electric control chamber.

Optimizing the Roots flowmeter with the gas oil change device, wherein an oil suction pipe is arranged in the new oil tank, the upper end of the oil suction pipe is hermetically connected with the oil change pump, and the lower end of the oil suction pipe extends to the bottom of the new oil tank; and a balance valve is arranged on the oil tank screw-connection seat and is communicated with the corresponding inner cavity of the oil tank.

The optimization of the Roots flowmeter with the gas and oil changing device is that the quick-change connector comprises an oil inlet hole, a guide pipe, a guide shaft, clamping blocks and an insertion pipe seat, the guide pipe and the guide shaft are coaxially arranged, the oil inlet hole is formed in the centers of the guide pipe and the guide shaft, the two clamping blocks are symmetrically arranged on the excircle of the guide shaft, and the insertion pipe seat is hermetically connected with the guide shaft into a whole.

The Roots flowmeter is optimized to be provided with a gas oil changing device, the self-sealing oil changer comprises a joint seat, a sealing ball, a spherical top block, a spring and a hollow pressure regulating screw plug, a joint hole, an end cap screw hole, a guide hole, a sealing conical surface, a spring hole and an inner screw hole are sequentially arranged in the center of the joint seat from right to left, the sealing ball is arranged between the sealing conical surface and the spherical top block, the spring is sleeved in the spring hole, one end of the spring abuts against the spherical top block, the other end of the spring is in contact with the hollow pressure regulating screw plug, the guide hole is matched with a guide pipe of the quick-change connector, and a locking structure is arranged between the joint hole and the quick-change connector.

And optimizing the gas-oil changing device of the Roots flowmeter, wherein an oil inlet channel is arranged on the spherical top block along the axial direction.

And the Roots flowmeter is optimized to be provided with the gas and oil exchanging device, and the oil inlet channel is arranged at the center of the spherical top block or on the outer circular surface of the spherical top block.

To the optimization of the gas-oil changing device of the Roots flowmeter, the locking structure arranged between the clamping hole and the quick-change connector is as follows: the outer side wall of the clamping hole is provided with a bayonet lamp holder type rotating clamping groove, the outer circle of the guide shaft is symmetrically provided with two clamping blocks, a guide pipe on the quick-change connector is inserted into the guide hole, the guide shaft is matched with the clamping hole, the two clamping blocks are positioned in the rotating clamping groove, the quick-change connector is locked along the rotation in an axial pushing state, and the quick-change connector is automatically unlocked through reverse rotation.

The utility model discloses the beneficial effect that can reach is:

the self-sealing oil exchanger comprises a joint seat, a sealing ball, a spherical top block, a spring and a hollow pressure regulating screw plug, wherein a joint hole, a guide hole, a sealing conical surface, a spring hole and an inner screw hole are sequentially arranged in the center of the joint seat from left to right, the sealing ball is arranged between the sealing conical surface and the spherical top block, the spring is sleeved in the spring hole, one end of the spring props against the spherical top block, the other end of the spring is in contact with the hollow pressure regulating screw plug, the guide hole is matched with a guide pipe of a quick-change connector, and a locking structure is arranged between the joint hole and the quick-change connector.

In the state of not changing oil, because the self-sealing oil changer is screwed in the oil drain plug hole on the Roots flowmeter in a sealing way, the sealing ball is automatically sealed with the sealing conical surface through the spherical top block under the action of the spring, the oil in the Roots flowmeter is prevented from flowing outwards, the prepressing force of the spring can be changed by adjusting the hollow pressure regulating screw plug, when the guide tube of the quick-change connector is inserted into the guide hole, the sealing ball is pushed away from the sealing conical surface, so that the oil in the Roots flowmeter is communicated with the oil change pump, the oil change pump can be started to suck the old oil in the Roots flowmeter, the sucked old oil is injected into the old oil tank through the old oil control valve, when old oil is pumped out, the electric control device enables the old oil control valve to be closed in a power-off mode, the new oil control valve is opened in a power-on mode, the oil change pump rotates reversely, oil in the new oil tank is injected into the Roots flowmeter through the oil suction pipe, the new oil control valve, the quick change connector and the self-sealing oil change device, and therefore oil change under the working condition that gas does not stop is achieved. In the oil changing process, the operation can be carried out without stopping gas, and as long as one person operates independently, the oil changing process has no fuel leakage and no oil liquid dripping, so that the oil changing process is safe and environment-friendly, and the whole oil changing process only needs 95-120 seconds within 2 minutes. And current oil change time needs more than 70 minutes, the utility model discloses can not only realize roots's flowmeter and change oil under the not gas condition that does not stop, realized old oil suction and new oil injection in addition and gone on in succession, both improved the convenience of changing oil, improved the efficiency of changing oil again, whole oil change process only needs one-man operation, and is long within 2 minutes. The efficiency of carrying out the maintenance of changing oil to roots's flowmeter in the gas circuit line has greatly been improved, maintenance cost has been reduced by a wide margin.

Drawings

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

fig. 3 is a schematic structural view of the utility model with the protective shell removed;

FIG. 4 is a schematic view of the connection structure between the old oil tank, the new oil tank, the old oil control valve, the new oil control valve, the oil change pump and the quick change coupler;

FIG. 5 is a schematic view of the fixing device;

FIG. 6 is a schematic structural view of a self-sealing oil changer;

FIG. 7 is a schematic view of the connector housing;

FIG. 8 is a schematic view of a spherical top block;

FIG. 9 is a right side view of FIG. 8;

FIG. 10 is a schematic view of another structure of a spherical top block;

fig. 11 is a schematic structural view of a quick-change coupler;

FIG. 12 is a left side view of FIG. 11;

wherein: 1-an oil aging tank; 2-a new oil tank; 3-aging an oil control valve; 4-new oil control valve; 5, oil pump replacement; 6-quick change coupler; 7-self-sealing oil changing; 8-an electric control device; 9-a fixing device; 10-a protective housing; 11-roots flowmeter; 21-an oil suction pipe; 61-oil inlet hole; 62-a guide tube; 63-a guide shaft; 64-a clamping block; 65-cannula seat; 66-lateral oil inlet holes; 71-a joint base; 72-a sealing ball; 73-spherical top block; 74-a spring; 75-hollow pressure regulating screw plug; 76-safety plugging joint; 711-snap holes; 712-a pilot hole; 713-sealing taper; 714-spring hole; 715-inner screw holes; 716-rotating the card slot; 717-plug screw holes; 731-centering arc surface; 732-a spring interface; 733-oil inlet channel; 91-a base plate; 92-oil tank rotary connecting seat; 93-solenoid valve mount pad; 94-an electric control chamber; 95-longitudinal vertical plates; 96-transverse upright plate; 97-balance valve.

The specific implementation mode is as follows:

the following structural drawings illustrate the present invention and the embodiments in detail:

example (b): a Roots flowmeter with gas oil changing device is shown in figure 1 and comprises an old oil tank 1, a new oil tank 2, an old oil control valve 3, a new oil control valve 4, an oil changing pump 5, a quick-change connector 6, a self-sealing oil changing device 7 and an electric control device 8, wherein the old oil tank 1 is connected with the old oil control valve 3 in series, the new oil tank 2 is connected with the new oil control valve 4 in series, the oil changing pump 5 is arranged between the old oil control valve 3 and the new oil control valve 4, the quick-change connector 6 is connected with an oil outlet of the oil changing pump 5 in a sealing mode, the self-sealing oil changing device 7 is connected with an oil discharging port of the Roots flowmeter in a sealing mode, and the electric control device 8 is electrically connected with the old oil control valve 3, the new oil control valve 4 and the oil changing pump 5.

In this example, the old oil tank 1, the new oil tank 2, the old oil control valve 3, the new oil control valve 4, the oil change pump 5, the quick change coupler 6 and the electric control device 8 are all mounted on the fixing device 9, the protective shell 10 is detachably and fixedly connected with the fixing device 9, and covers the old oil tank 1, the new oil tank 2, the old oil control valve 3, the new oil control valve 4, the oil change pump 5, the quick change coupler 6 and the electric control device 8;

the fixing device 9 comprises a bottom plate 91, an oil tank rotary connecting seat 92, an electromagnetic valve mounting seat 93, an electric control chamber 94, longitudinal vertical plates 95 and transverse vertical plates 96, two longitudinal vertical plates 95 are symmetrically mounted at two ends of the bottom plate 91, the transverse vertical plates 96 are respectively fixed at the inner sides of the two longitudinal vertical plates 95, the electromagnetic valve mounting seat 93 is horizontally mounted between the two transverse vertical plates 96, the oil tank rotary connecting seat 92 and the electric control chamber 94 are respectively fixed at the outer sides of the two transverse vertical plates 96, an old oil tank 1 and a new oil tank 2 are respectively and rotatably connected to the oil tank rotary connecting seat 92, an old oil control valve 3 and a new oil control valve 4 are mounted on the electromagnetic valve mounting seat 93, an oil change pump 5 is mounted on the bottom plate 91, and a battery and a control circuit in the electric control device 8 are both mounted in the electric control chamber 94.

An oil suction pipe 21 is arranged in the new oil tank 2, and the oil suction pipe 21 is hermetically connected with the oil change pump 5, so that the oil in the new oil tank 2 can be completely pumped out.

Each oil tank screwing seat 92 is provided with a balance valve 97, and the balance valve 97 is communicated with the corresponding oil tank inner cavity, so that the pressure of the oil tank can be ensured to be balanced with the outside.

The quick-change connector 6 comprises an oil inlet hole 61, a guide pipe 62, a guide shaft 63, clamping blocks 64 and an insertion pipe seat 65, wherein the guide pipe 62 and the guide shaft 63 are coaxially arranged, the oil inlet hole 61 is arranged at the centers of the guide pipe 62 and the guide shaft 63, a lateral oil inlet hole 66 is arranged on the side surface of the front section of the guide pipe 62, the lateral oil inlet hole 66 is communicated with the oil inlet hole 61, the outer circle of the guide shaft 63 is symmetrically provided with the two clamping blocks 64, and the insertion pipe seat 65 is hermetically connected with the guide shaft 63 into a whole.

The self-sealing oil exchanger 7 comprises a joint seat 71, a sealing ball 72, a spherical top block 73, a spring 74, a hollow pressure regulating screw plug 75 and a safety plugging joint 76, a clamping hole 711, a plug screw hole 717, a guide hole 712, a sealing conical surface 713, a spring hole 714 and an internal screw hole 715 are coaxially arranged in the center of the joint seat 71 from right to left, a sealing ball 72 is arranged between the sealing conical surface 713 and the spherical top block 73, a spring 74 is sleeved in the spring hole 714, one end of the spring 74 is propped against the spherical surface jacking block 73, the other end is contacted with the hollow pressure regulating screw plug 75, the spherical top block 73 comprises a centering arc surface 731, a spring abutting surface 732 and an oil inlet passage 733, the oil inlet 733 is axially disposed at the center of the spherical ejector block 73 or on the outer circular surface of the spherical ejector block 73, the guide hole 712 is matched with the guide tube 62 of the quick-change connector 6, and a locking structure is disposed between the clamping hole 711 and the quick-change connector 6.

The locking structure is as follows: the outer side wall of the clamping hole 711 is provided with a bayonet lamp holder type rotating clamping groove 716, the outer circle of the guide shaft 63 is symmetrically provided with two clamping blocks 64, the guide pipe 62 on the quick-change connector 6 is inserted into the guide hole 712, the guide shaft 63 is matched with the clamping hole 711, the two clamping blocks 64 are positioned in the corresponding rotating clamping grooves 716, the quick-change connector 6 is locked in a turnover mode in an axial pushing state, and the quick-change connector 6 is unlocked automatically in a reverse rotating mode.

In order to ensure safety, the guide hole 712 in the self-sealing oil exchanger 7 is prevented from being penetrated by foreign matters by an external person, and the safety plugging joint 76 is screwed into the plug screw hole 717 after oil is changed.

The use method of the Roots flowmeter with the gas oil changing device comprises the following steps: the self-sealing oil exchanger 7 is connected to an oil discharge opening of the Roots flowmeter 11 in a sealing mode, the quick-change connector 6 is in sealing butt joint with the self-sealing oil exchanger 7 on the Roots flowmeter 11 and then is locked, the electric control device 8 is started, the old oil control valve 3 and the oil change pump 5 are powered on, the old oil control valve 3 is powered on and opened at the moment, the oil change pump 5 is powered on and rotates forwards, old oil in the Roots flowmeter 11 is pumped out and injected into the old oil tank 1, after the old oil is pumped out, the old oil control valve 3 is powered off and closed by the electric control device 8, the new oil control valve 4 is powered on and opened, the oil change pump 5 rotates backwards, oil in the new oil tank 2 passes through the new oil control valve 4 through the oil suction pipe 21 and is pumped out by the oil change pump 5 and is directly injected into the Roots flowmeter 11 under pressure, and therefore oil change of the Roots flowmeter 11 is completed under the non-gas state.

The utility model discloses an embodiment is many, nevertheless no matter what kind of isofunctional structure of adoption, as long as make the utility model discloses a theory of operation is the same. All belong to the protection scope of the utility model,

in the embodiment, only one preferred embodiment is listed, the optimization of the quick-change coupling 6, the self-sealing oil changer 7 and the fixing device 9 is presented and the basic working principle, the main features and the main advantages of the invention are described. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention.

Claims (9)

1. The utility model provides a roots's flowmeter takes gas to trade oil device which characterized in that: the oil change device comprises an old oil tank (1), a new oil tank (2), an old oil control valve (3), a new oil control valve (4), an oil change pump (5), a quick-change connector (6), a self-sealing oil changer (7) and an electric control device (8), wherein the old oil tank (1) is connected with the old oil control valve (3) in series, the new oil tank (2) is connected with the new oil control valve (4) in series, the oil change pump (5) is arranged between the old oil control valve (3) and the new oil control valve (4), the quick-change connector (6) is connected with an oil outlet of the oil change pump (5) in a sealing manner, the self-sealing oil changer (7) is connected with an oil outlet of a Roots flowmeter (11) in a sealing manner, and the electric control device (8) is electrically connected with the old oil control valve (3), the new oil control valve (4) and the oil change pump (5).

2. The roots flowmeter with gas oil change device of claim 1, wherein: the oil changing device is characterized by further comprising a fixing device (9) and a protection shell (10), wherein the old oil tank (1), the new oil tank (2), the old oil control valve (3), the new oil control valve (4), the oil changing pump (5), the quick-change connector (6) and the electric control device (8) are all installed on the fixing device (9), the protection shell (10) is detachably and fixedly connected with the fixing device (9), and a cover cap is arranged on the old oil tank (1), the new oil tank (2), the old oil control valve (3), the new oil control valve (4), the oil changing pump (5), the quick-change connector (6) and the electric control device (8).

3. The roots flowmeter with gas oil change device of claim 2, wherein: the fixing device (9) comprises a bottom plate (91), an oil tank rotary joint seat (92), an electromagnetic valve installation seat (93) and an electric control chamber (94), wherein the oil tank rotary joint seat (92), the electromagnetic valve installation seat (93) and the electric control chamber (94) are directly or indirectly fixed on the bottom plate (91), an old oil tank (1) and a new oil tank (2) are respectively and rotatably connected on the oil tank rotary joint seat (92), an old oil control valve (3) and a new oil control valve (4) are installed on the electromagnetic valve installation seat (93), an oil change pump (5) is installed on the bottom plate (91), and a battery and a control circuit in the electric control device (8) are installed in the electric control chamber (94).

4. The roots flowmeter with gas oil change device of claim 3, wherein: an oil suction pipe (21) is arranged in the new oil tank (2), the upper end of the oil suction pipe (21) is hermetically connected with the oil change pump (5), and the lower end of the oil suction pipe (21) extends to the bottom of the new oil tank (2); the oil tank rotary connecting seat (92) is provided with a balance valve (97), and the balance valve (97) is communicated with the corresponding inner cavity of the oil tank.

5. The roots flowmeter with gas oil change device of claim 1, wherein: the quick-change connector (6) comprises an oil inlet hole (61), a guide pipe (62), a guide shaft (63), clamping blocks (64) and an insertion pipe seat (65), wherein the guide pipe (62) and the guide shaft (63) are coaxially arranged, the oil inlet hole (61) is formed in the centers of the guide pipe (62) and the guide shaft (63), the two clamping blocks (64) are symmetrically arranged on the outer circle of the guide shaft (63), and the insertion pipe seat (65) is hermetically connected with the guide shaft (63) into a whole.

6. The roots flowmeter with gas oil change device of claim 1, wherein: the self-sealing oil changer (7) comprises a joint seat (71), a sealing ball (72), a spherical top block (73), a spring (74) and a hollow pressure regulating screw plug (75), wherein a clamping hole (711), a plug screw hole (717), a guide hole (712), a sealing conical surface (713), a spring hole (714) and an inner screw hole (715) are sequentially arranged in the center of the joint seat (71) from right to left, the sealing ball (72) is arranged between the sealing conical surface (713) and the spherical top block (73), the spring (74) is sleeved in the spring hole (714), one end of the spring (74) abuts against the spherical top block (73), the other end of the spring is in contact with the hollow pressure regulating screw plug (75), the guide hole (712) is matched with a guide pipe (62) of the quick-change connector (6), and a locking structure is arranged between the clamping hole (711) and the quick-change connector (6).

7. The roots flowmeter with gas oil change device of claim 6, wherein: an oil inlet channel (733) is arranged on the spherical top block (73) along the axial direction.

8. The roots flowmeter with gas oil change device of claim 7, wherein: the oil inlet channel (733) is arranged at the center of the spherical top block (73) or on the outer circular surface of the spherical top block (73).

9. The roots flowmeter with gas oil change device of claim 6, wherein: the locking structure arranged between the clamping hole (711) and the quick-change connector (6) is as follows: the outer side wall of the clamping hole (711) is provided with a bayonet lamp holder type rotating clamping groove (716), the outer circle of the guide shaft (63) is symmetrically provided with two clamping blocks (64), the guide pipe (62) on the quick-change connector (6) is inserted into the guide hole (712), the guide shaft (63) is matched with the clamping hole (711), the two clamping blocks (64) are positioned in the rotating clamping groove (716), the quick-change connector (6) is locked along the rotation under the axial pushing state, and the quick-change connector is unlocked automatically after being rotated reversely.

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