CN219187997U - Belt cleaning device of two flange changer bellows - Google Patents
Belt cleaning device of two flange changer bellows Download PDFInfo
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- CN219187997U CN219187997U CN202320368818.3U CN202320368818U CN219187997U CN 219187997 U CN219187997 U CN 219187997U CN 202320368818 U CN202320368818 U CN 202320368818U CN 219187997 U CN219187997 U CN 219187997U
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Abstract
The utility model discloses a cleaning device for a diaphragm capsule of a double-flange transmitter, and relates to the technical field of double-flange transmitters; the double-flange transmitter comprises a remote transmitter flange and a measuring pressure-taking point flange; the remote transmitter flange and the measuring pressure sampling point flange are respectively fixed with a diaphragm capsule; a short joint with a cavity is connected between the remote transmitter flange and the measurement pressure-taking point flange in a sealing way, one side of the short joint is provided with a clean source inlet, and the other side of the short joint is provided with an impurity outlet; the cleaning source inlet is detachably connected with a plug, the impurity outlet is connected with a pressure taking pipe, and the pressure taking pipe is connected with a blow-down valve; according to the utility model, under the conditions of working condition change and the like, the bellows can be cleaned at the first time, so that the instrument can be ensured to stably run under various working conditions; the cleaning device is suitable for cleaning and maintaining the flange type transmitter.
Description
Technical Field
The utility model relates to a double-flange transmitter, in particular to a cleaning device for a diaphragm capsule of the double-flange transmitter.
Background
The double flange transmitter is essentially a differential pressure transmitter with special pressure taking. The pressure measuring device is characterized in that two capillaries are connected to pressure sampling ports of a positive chamber and a negative chamber of a differential pressure transmitter, and two bellows which are sealed by stainless steel film sheets and fixed on a mounting flange are arranged at the tail end of the two capillaries. The membrane box, capillary tube and positive and negative pressure chamber of differential pressure transmitter are filled with silicone oil by vacuum filling method, and they are tightly connected by external nut, connecting tube and joint. Thus, when the liquid level is measured, the pressure sensed by the stainless steel corrugated diaphragm on the pressure sensing diaphragm box is transmitted to the positive pressure chamber and the negative pressure chamber of the differential pressure transmitter by the silicone oil. And converting the deformation into a 4-20 mA DC signal and outputting the signal. The double-flange transmitter is used as an input signal of an indication recorder, an arithmetic unit and a regulator, so that continuous detection and automatic control of the production process are realized.
However, when the double-flange transmitter is used for treating high-salt wastewater and other evaporating systems with crystals or sludge, the crystals or sludge precipitated in the evaporating process can be attached to the membrane of the double-flange transmitter, so that the double-flange transmitter cannot confirm the zero point on line, and the measuring accuracy is seriously affected. The double-flange transmitter has the advantages that the diaphragm capsule is required to be disassembled and cleaned periodically due to impurities contained in the medium, and the operation is complex; the risk of personal injury is easily created if the screening is performed during the measurement of flammable and toxic media.
Chinese patent CN 109365375A discloses a differential pressure transmitter diaphragm cleaning device, comprising a cleaning device and a control device, the control device is connected with the cleaning device; the control device is used for opening the electric valve at regular time so as to output the cleaning liquid to the nozzle through the cleaning pipe, and the nozzle is used for spraying the cleaning liquid to the diaphragm of the differential pressure transmitter. The device starts the nozzle to spray cleaning liquid for cleaning through the control device, but the connection structure of the double-flange transmitter comprises a remote transmitter flange and a measuring pressure-taking point flange at two sides; the aim of flushing and pollution discharge can not be achieved directly through the connecting nozzle.
Disclosure of Invention
The utility model overcomes the defects of the prior art and provides a cleaning device for a diaphragm capsule of a double-flange transmitter. The purpose of cleaning the diaphragm capsule and discharging sewage is achieved aiming at the structure of the double-flange transmitter.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme.
The cleaning device of the double-flange transmitter diaphragm capsule comprises a remote transmitter flange and a measuring pressure-taking point flange; the remote transmitter flange and the measuring pressure sampling point flange are respectively fixed with a diaphragm capsule; the bellows connected with the remote transmitter flange is connected with the double-flange transmitter capillary tube; a short joint with a cavity is connected between the remote transmitter flange and the measurement pressure-taking point flange in a sealing way, one side of the short joint is provided with a clean source inlet, and the other side of the short joint is provided with an impurity outlet; the cleaning source inlet is detachably connected with a plug, the impurity outlet is connected with a pressure taking pipe, and the pressure taking pipe is connected with a drain valve.
Further, the joint of the nipple and the remote transmitter flange and the joint of the nipple and the measuring pressure-taking point flange (8) are provided with sealing gaskets.
Further, the cleaning source inlet is provided with internal threads, and the plug is in threaded connection with the cleaning source inlet.
Further, the impurity outlet is provided with an internal thread, and is connected with a clamping sleeve joint which is connected with the pressure taking pipe.
Further, the cleaning source inlet and the impurity outlet are arranged oppositely.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model can be used for a lifetime, and can avoid irreversible damage to the capsule caused by long-term incapability of disassembling and checking due to impurities in the medium. The utility model omits the time of dismantling the transmitter flange, can clean the medium or impurities in the diaphragm capsule by simple purging, and prolongs the service life of the double-flange transmitter. Under the conditions of working condition change and the like, the bellows can be cleaned at the first time, and the instrument can be ensured to stably run under various working conditions.
Drawings
FIG. 1 is a cross-sectional view of a cleaning device for a double flange transmitter bellows of the present utility model.
In the figure, a 1-double flange transmitter capillary tube, a 2-remote transmitter flange, a 3-sealing gasket, a 4-plug, a 5-pressure taking pipe, a 6-clamping sleeve joint, a 7-blow-down valve, an 8-measurement pressure taking point flange, a 9-short joint, a 10-clean source inlet and an 11-impurity outlet.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail by combining the embodiments and the drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. The following describes the technical scheme of the present utility model in detail with reference to examples and drawings, but the scope of protection is not limited thereto.
Referring to fig. 1, the present embodiment proposes a cleaning device for a capsule of a dual-flange transmitter, which includes a remote transmitter flange 2 and a measurement tap flange 8; the remote transmitter flange 2 and the measuring pressure-taking point flange 8 are respectively fixed with a diaphragm capsule; the bellows connected with the remote transmitter flange 2 is connected with the double-flange transmitter capillary tube 1; a short joint 9 made of stainless steel and provided with a cavity is connected between the remote transmitter flange 2 and the measuring pressure-taking point flange 8 in a sealing way; the joint of the nipple 9 and the remote transmitter flange 2 and the joint of the nipple 9 and the measuring pressure-taking point flange 8 are provided with sealing gaskets 3. One side of the nipple 9 is provided with a clean source inlet 10, the clean source inlet 10 is provided with internal threads, and the clean source inlet 10 is detachably connected with a 1/2NPT plug 4 through threads. The other side of the short section 9 is provided with an impurity outlet 11; the cleaning source inlet 10 and the impurity discharge outlet 11 are disposed opposite to each other. The impurity outlet 11 is provided with an internal thread, the impurity outlet 11 is connected with a 1/2NPT clamping sleeve joint 6, and the clamping sleeve joint 6 is connected with the pressure taking pipe 5. The pressure taking pipe 5 is connected with a blow-down valve 7.
The working principle of the embodiment is as follows: under the normal operation state, the plug 4 is in a blocking state, and the drain valve 7 is in a closing state. When the diaphragm capsule connected with the remote transmitter flange 2 is contaminated due to the reasons of process working condition change and the like and the diaphragm capsule measurement is affected, the measuring pressure sampling point flange 8 can be isolated, and the blow-down valve 7 is opened to discharge pressure through the pressure sampling pipe 5. And then the plug 4 is disconnected, and a pipeline with the same specification can be connected with a clean air source or a clean water source to discharge the capsule impurities at the remote transmitter flange 2 from the blow-down valve 7, so that the effect of cleaning the capsule is achieved. In the field practical application, the clamping sleeve joint 6 is consistent with the threads of the plug 4, and the positions of the clamping sleeve joint and the plug can be interchanged according to the field practical installation environment.
The cleaning device can be applied to flange transmitters. After the nipple is put into use, the process pressure-taking root valve can be closed, the nipple blow-down hand valve plug is loosened, the blow-down valve is opened to discharge pressure and medium, then the other side plug of the nipple is loosened, and nitrogen or clean air and the like are introduced to blow out the medium between the diaphragm capsule and the nipple, so that no impurity influence in the diaphragm capsule is ensured. After the device is added to the transmitter, the bellows can be cleaned at the first time under the conditions of working condition change and the like, and the instrument can be ensured to stably run under various working conditions.
While the utility model has been described in detail in connection with specific preferred embodiments thereof, it is not to be construed as limited thereto, but rather as a result of a simple deduction or substitution by a person having ordinary skill in the art to which the utility model pertains without departing from the scope of the utility model defined by the appended claims.
Claims (5)
1. The cleaning device of the double-flange transmitter diaphragm capsule comprises a remote transmitter flange (2) and a measuring pressure-taking point flange (8); the remote transmitter flange (2) and the measuring pressure-taking point flange (8) are respectively fixed with a diaphragm capsule; the bellows connected with the remote transmitter flange (2) is connected with the double-flange transmitter capillary tube (1); the remote transmitter is characterized in that a short joint (9) with a cavity is connected between the remote transmitter flange (2) and the measuring pressure-taking point flange (8) in a sealing way, one side of the short joint (9) is provided with a clean source inlet (10), and the other side of the short joint (9) is provided with an impurity outlet (11); the cleaning source inlet (10) is detachably connected with a plug (4), the impurity outlet (11) is connected with a pressure taking pipe (5), and the pressure taking pipe (5) is connected with a blow-down valve (7).
2. The cleaning device for the diaphragm capsule of the double-flange transmitter according to claim 1 is characterized in that sealing gaskets (3) are arranged at the joint of the nipple (9) and the flange (2) of the remote transmitter and at the joint of the nipple (9) and the flange (8) of the measuring pressure sampling point.
3. The cleaning device of a double flange transmitter capsule according to claim 1, characterized in that the clean source inlet (10) is provided with an internal thread, and the plug (4) is screwed with the clean source inlet (10).
4. The cleaning device for the double-flange transmitter bellows according to claim 1, characterized in that the impurity outlet (11) is provided with an internal thread, the impurity outlet (11) is connected with a clamping sleeve joint (6), and the clamping sleeve joint (6) is connected with the pressure taking pipe (5).
5. The cleaning apparatus of a double flange transmitter capsule of claim 1, wherein the clean source inlet (10) and the impurity outlet (11) are disposed opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320368818.3U CN219187997U (en) | 2023-03-02 | 2023-03-02 | Belt cleaning device of two flange changer bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320368818.3U CN219187997U (en) | 2023-03-02 | 2023-03-02 | Belt cleaning device of two flange changer bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219187997U true CN219187997U (en) | 2023-06-16 |
Family
ID=86707658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320368818.3U Active CN219187997U (en) | 2023-03-02 | 2023-03-02 | Belt cleaning device of two flange changer bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219187997U (en) |
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2023
- 2023-03-02 CN CN202320368818.3U patent/CN219187997U/en active Active
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