CN103899527B - The two membrane ruptures warning device of a kind of metering pump - Google Patents
The two membrane ruptures warning device of a kind of metering pump Download PDFInfo
- Publication number
- CN103899527B CN103899527B CN201410116276.6A CN201410116276A CN103899527B CN 103899527 B CN103899527 B CN 103899527B CN 201410116276 A CN201410116276 A CN 201410116276A CN 103899527 B CN103899527 B CN 103899527B
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- Prior art keywords
- diaphragm seal
- seal ring
- metering pump
- filter tap
- pressure
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Abstract
The two membrane ruptures warning device of a kind of metering pump, comprise two diaphragm seal ring, two diaphragm seal ring is secured by bolts between the pump head of metering pump and pumping cylinder, the installation fixing position being provided with metering pump head side barrier film and pumping cylinder side barrier film is put, two diaphragm seal ring top is Output pressure passage and is connected with adjustable pressure filter tap, annular pressure sampling pipe is glued with in the inner side of two diaphragm seal ring, annular pressure sampling pipe pipe shaft uniform cross force samples hole, its top is connected in two diaphragm seal ring compression output channel, and be connected with adjustable pressure filter tap, the top of adjustable pressure filter tap is connected with multiple alert detecting element, the invention solves the existing two membrane ruptures warning devices having packing, when the problem of packing pollution medium or hydraulic oil after membrane ruptures, solve the alarm signal that the two membrane ruptures warning devices vacuumized easily send mistake simultaneously, mislead the problem of staff.
Description
Technical field
The present invention relates to metering pump technical field, be specifically related to the two membrane ruptures warning device of a kind of metering pump.
Background technique
Two membrane ruptures warning device first kind of way that conventional metering pump adopts fill particular matter between barrier film, if after membrane ruptures, judge whether barrier film breaks by the pollution condition detecting this material, the advantage of this mode can pass out Pressure Alarm accurately in real time, shortcoming is that between two barrier film, packing can pollute flow medium or hydraulic oil when membrane ruptures, and be not easy to control to the amount of filler when repairing, need professional workforce to process.Second method is the cavity extracting vacuum between two panels barrier film and seal ring, judge whether barrier film breaks by the degree of vacuum detected in seal chamber, this method successfully solves the problem of packing pollution medium, but this mode is very high to the sealing requirements of cavity between two barrier film, be difficult to the pressure permeation avoiding sealed interface, for the metering pump after working long hours, the easy output error signal of warning device, and reparation needs professional workforce and professional equipment after membrane ruptures, general staff is difficult to operation and completes.
Summary of the invention
In order to solve above-mentioned prior art Problems existing, the object of the present invention is to provide the two membrane ruptures warning device of a kind of metering pump, solve the existing two membrane ruptures warning devices having packing, when the problem of packing pollution medium or hydraulic oil after membrane ruptures, solve the alarm signal that the two membrane ruptures warning devices vacuumized easily send mistake simultaneously, mislead the problem of staff.
For achieving the above object, the technical solution used in the present invention is:
The two membrane ruptures warning device of a kind of metering pump, comprise two diaphragm seal ring 4, described pair of diaphragm seal ring 4 is secured by bolts between the pump head B of metering pump and pumping cylinder G, the installation fixing position being provided with metering pump head side barrier film E and pumping cylinder side barrier film D is put, two diaphragm seal ring 4 top is Output pressure passage and is connected with adjustable pressure filter tap 2, annular pressure sampling pipe 3 is glued with in the inner side of two diaphragm seal ring 4, described annular pressure sampling pipe 3 pipe shaft uniform cross force samples hole, its top is connected on two diaphragm seal ring 4 Output pressure passage, and be connected with adjustable pressure filter tap 2, the top of adjustable pressure filter tap 2 is connected with multiple alert detecting element 1.
The sealing surface of described pair of diaphragm seal ring 4 has with three road feminine gender sealing waterlines, and the metering pump head side barrier film E of both sides and pumping cylinder side barrier film D forms seal chamber.
Described adjustable pressure filter tap 2 comprises valve body 2-2, be arranged on the valve seat 2-8 in valve body 2-2 bottom service aisle, be close to the check valve ball 2-7 being arranged on valve seat 2-8 top, be close to the check valve ball cover 2-6 being arranged on check valve ball 2-7 top, check valve ball cover 2-6 has the first through hole 2-6-1 that pressure passes through, adjustable spring 2-5 is provided with in the service aisle on check valve ball cover 2-6 top, spring adjusting nut 2-4 is provided with at the top of adjustable spring 2-5, spring adjusting nut 2-4 has the second through hole 2-4-1 that pressure passes through, selective monitoring device joint 2-1 is provided with at the top of spring adjusting nut 2-4, sealing gasket 2-3 is provided with between selective monitoring device joint 2-1 and spring adjusting nut 2-4, after alarm pressure signal is higher than safe threshold, pass to alert detecting element 1 by its service aisle.
The safe threshold of described adjustable pressure filter tap 2 sets as required, completes setting by adjustable spring 2-5 and spring adjusting nut 2-4,
The shape of described annular pressure sampling pipe 3 and the shape item adaptation of two diaphragm seal ring 4 madial wall, be connected with two diaphragm seal ring 4 top pressure passage by argon arc welding mode, the Pressure Alarm that annular pressure sampling pipe 3 gathers passes to adjustable pressure filter tap 2 by its top pressure passage.
Described adjustable pressure filter tap 2 is threaded connection the top being fixed on two diaphragm seal rings 4.
Compared to the prior art, tool has the following advantages in the present invention:
1. routine techniques production can be adopted with the metering pump of two membrane ruptures warning device, the special tool with stower's energy or the special device with extracting vacuum function need not be used, reduce cost of production and the production difficulty of manufacturing enterprise.
2. no matter do not have packing in pair membrane ruptures warning device, be that flow medium or hydraulic oil all can not be polluted after membrane ruptures.
3. adopt annular pressure sampling pipe can pressure signal in uniform pickup sampling cavity, can not as common double membrane ruptures warning device because thief hatch blocking cause alarm signal to spread out of.
4. adopt adjustable pressure filter tap can avoid the interference pressure signal produced when metering pump normally works, only transmit correct alarm signal, erroneous judgement can not be caused to user.
5. adjustable pressure filter tap can set safe threshold, by the setting to safe threshold, two membrane ruptures warning device can be allowed to be suitable for more wide in range metering pump working state.
6. adjustable pressure filter tap has the unidirectional passing ability of pressure signal, the alarm signal after metering pump membrane ruptures can be made to have retentivity by the effect of check valve ball, once the situation of the membrane ruptures occurred, no matter metering pump, in operation or halted state, all can provide alarm signal to user.
7. be furnished with the joint that multiple monitoring element connects, client can select multiple monitoring device according to self needing.
8. simple service condition reduces the technical requirements and fix tool requirement of safeguarding the staff used.
Accompanying drawing explanation
Fig. 1 is the mounting point plan view that the two membrane ruptures of the present invention is reported to the police.
Fig. 2 is the mounting point side view that the two membrane ruptures of the present invention is reported to the police.
Fig. 3 is the system architecture schematic diagram of the two membrane ruptures warning device of the present invention.
Fig. 4 is adjustable pressure filter tap structure enlarged diagram of the present invention.
Fig. 5 is the structure enlarged diagram of pressure signal transmission of the present invention moment.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As Fig. 1, shown in Fig. 2 and Fig. 3, the two membrane ruptures warning device of a kind of metering pump, comprise two diaphragm seal ring 4, described pair of diaphragm seal ring 4 is secured by bolts between the pump head B of metering pump and pumping cylinder G, the installation fixing position being provided with metering pump head side barrier film E and pumping cylinder side barrier film D is put, two diaphragm seal ring 4 top is Output pressure passage and is connected with adjustable pressure filter tap 2, annular pressure sampling pipe 3 is glued with in the inner side of two diaphragm seal ring 4, described annular pressure sampling pipe 3 pipe shaft uniform cross force samples hole, its top is connected on two diaphragm seal ring 4 Output pressure passage, and be connected with adjustable pressure filter tap 2, the top of adjustable pressure filter tap 2 is connected with multiple alert detecting element 1.The sealing surface of described pair of diaphragm seal ring 4 has with three road feminine gender sealing waterlines, and the metering pump head side barrier film E of both sides and pumping cylinder side barrier film D forms seal chamber.
As shown in Figure 4, adjustable pressure filter tap 2 comprises valve body 2-2, be arranged on the valve seat 2-8 in valve body 2-2 bottom service aisle, be close to the check valve ball 2-7 being arranged on valve seat 2-8 top, be close to the check valve ball cover 2-6 being arranged on check valve ball 2-7 top, check valve ball cover 2-6 has the first through hole 2-6-1 that pressure passes through, adjustable spring 2-5 is provided with in the service aisle on check valve ball cover 2-6 top, spring adjusting nut 2-4 is provided with at the top of adjustable spring 2-5, spring adjusting nut 2-4 has the second through hole 2-4-1 that pressure passes through, selective monitoring device joint 2-1 is provided with at the top of spring adjusting nut 2-4, sealing gasket 2-3 is provided with between selective monitoring device joint 2-1 and spring adjusting nut 2-4, after alarm pressure signal is higher than safe threshold, pass to alert detecting element 1 by its service aisle.Check valve ball 2-7 and valve seat 2-8 fits tightly, and ensures can not be come back in sampling cavity by its pressure signal to go.The safe threshold of described adjustable pressure filter tap 2 sets as required, completes setting by adjustable spring 2-5 and spring adjusting nut 2-4,
As the preferred embodiment of the present invention, the shape of described annular pressure sampling pipe 3 and the shape item adaptation of two diaphragm seal ring 4 madial wall, be connected with two diaphragm seal ring 4 top pressure passage by argon arc welding mode, the Pressure Alarm that annular pressure sampling pipe 3 gathers passes to adjustable pressure filter tap 2 by its top pressure passage.
As the preferred embodiment of the present invention, described adjustable pressure filter tap 2 is threaded connection the top being fixed on two diaphragm seal rings 4.
As shown in Figure 5, working principle of the present invention is: after a slice any in the metering pump head side barrier film E and pumping cylinder side barrier film D of two diaphragm seal ring 4 both sides is broken, and pressure pours among the seal chamber of original sealing.By the thief hatch of annular pressure sampling pipe 3, the pressure signal of exception is transported to the entrance of adjustable pressure filter tap 2; The safe threshold that the pressure signal of this exception will be greater than adjustable pressure filter tap 2 and sets according to metering pump actual conditions, the check valve ball 2-7 of adjustable pressure filter tap 2 is pushed up from valve seat 2-8, pressure is upwards transmitted by the passage i.e. first through hole 2-6-1 of check ball valve cage 2-6 surrounding, passage through spring adjusting nut 2-4 center i.e. the second through hole 2-4-1, passes to the alert detecting element 1 of least significant end accurately.
When the equipment that barrier film has broken is stopped using, pressure in two barrier film warning device cavity can be released, at this moment the check valve ball 2-7 of adjustable pressure filter tap 2 can fall after rise, just in time seal up the pressure had in adjustable pressure filter tap 2, alert detecting element 1 can continue to provide alarm signal to user, eliminates until metering pump is repaired rear alarm signal.
Claims (4)
1. the two membrane ruptures warning device of metering pump, comprise two diaphragm seal ring (4), it is characterized in that: described pair of diaphragm seal ring (4) is secured by bolts between the pump head (B) of metering pump and pumping cylinder (G), the installation fixing position being provided with metering pump head side barrier film (E) and pumping cylinder side barrier film (D) is put, two diaphragm seal ring (4) top is Output pressure passage and is connected with adjustable pressure filter tap (2), annular pressure sampling pipe (3) is glued with in the inner side of two diaphragm seal ring (4), described annular pressure sampling pipe (3) pipe shaft uniform cross force samples hole, its top is connected on two diaphragm seal ring (4) Output pressure passage, and be connected with adjustable pressure filter tap (2), the top of adjustable pressure filter tap (2) is connected with multiple alert detecting element (1), the sealing surface of described pair of diaphragm seal ring (4) has with three roads feminine gender sealing waterlines, and metering pump head side barrier film (E) of both sides and pumping cylinder side barrier film (D) form seal chamber, described adjustable pressure filter tap (2) comprises valve body (2-2), be arranged on the valve seat (2-8) bottom service aisle in valve body (2-2), be close to the check valve ball (2-7) being arranged on valve seat (2-8) top, be close to the check valve ball cover (2-6) being arranged on check valve ball (2-7) top, check valve ball cover (2-6) has the first through hole (2-6-1) that pressure passes through, adjustable spring (2-5) is provided with in the service aisle on check valve ball cover (2-6) top, the top of adjustable spring (2-5) is provided with spring adjusting nut (2-4), spring adjusting nut (2-4) has the second through hole (2-4-1) that pressure passes through, the top of spring adjusting nut (2-4) is provided with selective monitoring device joint (2-1), sealing gasket (2-3) is provided with between selective monitoring device joint (2-1) and spring adjusting nut (2-4), after alarm pressure signal is higher than safe threshold, pass to alert detecting element (1) by its service aisle.
2. the two membrane ruptures warning device of a kind of metering pump according to claim 1, it is characterized in that: the safe threshold of described adjustable pressure filter tap (2) sets as required, complete setting by adjustable spring (2-5) and spring adjusting nut (2-4).
3. the two membrane ruptures warning device of a kind of metering pump according to claim 1, it is characterized in that: the shape of described annular pressure sampling pipe (3) is suitable with the shape of two diaphragm seal ring (4) madial wall, be connected with two diaphragm seal ring (4) top pressure passage by argon arc welding mode, the Pressure Alarm that annular pressure sampling pipe (3) gathers passes to adjustable pressure filter tap (2) by its top pressure passage.
4. the two membrane ruptures warning device of a kind of metering pump according to claim 1, is characterized in that: described adjustable pressure filter tap (2) is threaded connection the top being fixed on two diaphragm seal rings (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116276.6A CN103899527B (en) | 2014-03-26 | 2014-03-26 | The two membrane ruptures warning device of a kind of metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116276.6A CN103899527B (en) | 2014-03-26 | 2014-03-26 | The two membrane ruptures warning device of a kind of metering pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899527A CN103899527A (en) | 2014-07-02 |
| CN103899527B true CN103899527B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410116276.6A Expired - Fee Related CN103899527B (en) | 2014-03-26 | 2014-03-26 | The two membrane ruptures warning device of a kind of metering pump |
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| Country | Link |
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| CN (1) | CN103899527B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255670B (en) * | 2020-02-11 | 2021-09-21 | 上海亿钶气体有限公司 | Diaphragm type gas compressor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1552305A (en) * | 1967-12-15 | 1969-01-03 | ||
| JPS60105936A (en) * | 1983-11-14 | 1985-06-11 | Nikkiso Co Ltd | Apparatus for detecting rupture of diaphragm |
| FR2564942B1 (en) * | 1984-05-25 | 1987-07-10 | Clextral | AUTOMATIC BLEEDER FOR HYDRAULICALLY CONTROLLED DOUBLE MEMBRANE PUMP. |
| JP3559605B2 (en) * | 1995-02-21 | 2004-09-02 | 日機装株式会社 | Tube diaphragm pump |
| DE10138674B4 (en) * | 2001-08-07 | 2011-08-11 | Kleibrink, Horst, 45473 | Method for avoiding accidents of diaphragm compressors |
| CN101644249A (en) * | 2009-08-18 | 2010-02-10 | 杭州大潮石化设备有限公司 | Hydraulic diaphragm-type reciprocating pump with function of diaphragm breakage alarm |
| CN103352839A (en) * | 2013-07-26 | 2013-10-16 | 胜瑞兰工业设备（苏州）有限公司 | Membrane leakage guiding device with metal sheets with slots |
| CN203809270U (en) * | 2014-03-26 | 2014-09-03 | 西安西热水务环保有限公司 | Novel double-membrane breaking alarming device for metering pump |
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2014
- 2014-03-26 CN CN201410116276.6A patent/CN103899527B/en not_active Expired - Fee Related
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| CN103899527A (en) | 2014-07-02 |
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