CN204405243U - Pressure unit - Google Patents
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- CN204405243U CN204405243U CN201420873424.4U CN201420873424U CN204405243U CN 204405243 U CN204405243 U CN 204405243U CN 201420873424 U CN201420873424 U CN 201420873424U CN 204405243 U CN204405243 U CN 204405243U
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Abstract
The utility model provides a kind of pressure unit, comprise: film head, the primary diaphragm be connected with film head, be arranged at the first medium between primary diaphragm and film head, the secondary diaphragm be connected with film head and the second medium be arranged between secondary diaphragm and film head, pressure unit also comprises: be arranged at the first pH value pick-up unit and display device on film head, and wherein, one end of the first pH value pick-up unit can contact first medium; Display device receives and shows the first pH value signal from the first pH value pick-up unit.According to the pressure unit that the utility model provides, the on-line checkingi of the diaphragm state to pressure unit can be realized by the pH value of the interior media measured.
Description
Technical field
The utility model relates to the technical field of the physical descriptor in measurement, monitoring industrial processes, in particular to a kind of pressure unit.
Background technology
Pressure unit (pressure transmitter) refers to export the pressure transducer into standard signal, is a kind ofly to accept the instrument that pressure variations is converted to standard output signals in proportion.The physical pressure parameter such as gas, liquid that load cell can be experienced by it is transformed into the electric signal (as 4 ~ 20mADC etc.) of standard, carries out measuring, indicating and procedure regulation to supply the secondary instruments such as indicator alarm, registering instrument, regulator.
At present, pressure unit has been widely used in needing in the industrial system of the physical descriptors such as monitor force.Medium in industrial system can be detected or be measured by pressure unit, to make to realize the detection to industrial system state or measurement.
As the pressure-sensitive parts of pressure unit, diaphragm needs and process medium contacts with each other.Therefore, for the environment that the corrosivity of process medium is higher, the diaphragm of pressure unit will be corroded by process medium easily and wear and tear, when diaphragm be corroded wear or wear and tear wear time, process medium just can enter into the inside of pressure unit, finally can cause the inefficacy of pressure unit.In addition, process medium is contained to the environment of hydrogen, because hydrogen ion is very small and have stronger perviousness, diaphragm can be penetrated easily and enter pressure unit inside, and form hydrogen at pressure unit accumulated inside gradually, finally also will cause the inefficacy of pressure unit.Certainly, for the situation of other mechanical damage, the damage of diaphragm also can be caused.
When diaphragm breakage or hydrogen ooze, although the diaphragm of pressure unit still can experience the pressure of process medium, because the breakage of diaphragm or hydrogen ooze, between the force value detected and actual value, very large error will be there is.
But current pressure unit all cannot carry out on-line checkingi to the state of its diaphragm.When diaphragm is impaired, staff cannot according to the detected value of pressure unit judge diaphragm whether damaged or hydrogen ooze, all systems can only be closed, after being dismantled by pressure unit, could judge whether its diaphragm breakage occurs or hydrogen oozes.In some cases, even if pressure unit is disassembled, but due to breaking point very little, cannot be detected by naked eyes, be merely able to can be found by the equipment of specialty and instrument, so just greatly can have influence on on-the-spot production efficiency.
For the problem of the diaphragm state of pressure unit being carried out to on-line checkingi cannot be realized in correlation technique, at present effective solution is not yet proposed.
Utility model content
In order to solve the problem, the utility model provides a kind of pressure unit can detect the state of its diaphragm, thus can the diaphragm of Timeliness coverage pressure unit whether damaged, reduce because diaphragm damages the loss caused working site.
The utility model provides a kind of pressure unit, comprise: film head, the primary diaphragm be connected with described film head, be arranged at the first medium between described primary diaphragm and described film head, the secondary diaphragm be connected with described film head and the second medium be arranged between described secondary diaphragm and described film head, described pressure unit also comprises: be arranged at the first pH value pick-up unit on described film head, and wherein, one end of described first pH value pick-up unit can contact described first medium; Display device, receives and shows the first pH value signal from described first pH value pick-up unit.When primary diaphragm produces damage, outside process medium will enter the first medium packaged by primary diaphragm, thus will the pH value of first medium be caused to change.Whether, therefore, by detecting the pH value of first medium, can the primary diaphragm of detected pressures transmitter be damaged, such as hydrogen oozes or damaged due to corrosion.
Above-mentioned first pH value pick-up unit directly inserts in described first medium with the contact jaw that described first medium can contact.
Above-mentioned first pH value pick-up unit is positioned at described film head with the contact jaw that described first medium can contact, and described film head is also provided with interface channel, connects the contact jaw of described first medium and described first medium.
Above-mentioned display device is electrically connected with described first pH value pick-up unit.
Above-mentioned display device and described first pH value pick-up unit wireless connections.
Above-mentioned display device is display module, manual operator or pH value test paper.
Above-mentioned first pH value pick-up unit is pH value sensor; Or the pH value detector tube that described first pH value pick-up unit and described display device are integrated, first medium described in described pH value detector tube end thereof contacts, the other end is shown in the surface of described pressure unit.
The mounting means of above-mentioned first pH value pick-up unit and described film head is for welding, being threaded or interference fit is connected.
Above-mentioned film head is also provided with the second pH value pick-up unit, second medium described in the end thereof contacts of described second pH value pick-up unit; Described display device also receives and shows the second pH value signal from described second pH value pick-up unit.
Above-mentioned transmitter also comprises:
Teletransmission seal and the tertiary membrane sheet be connected with described teletransmission seal and the 3rd medium be arranged between described tertiary membrane sheet and described teletransmission seal, described teletransmission seal is also provided with the 3rd pH value pick-up unit, one end of described 3rd pH value pick-up unit can contact described 3rd medium; Described display device also receives and shows the 3rd pH value signal from described 3rd pH value pick-up unit.
By the technical scheme that the utility model provides, pressure unit can comprise: film head and the primary diaphragm be connected with described film head and secondary diaphragm, primary diaphragm encapsulation first medium, secondary diaphragm encapsulation second medium, this film head is also provided with the first pH value pick-up unit, first pH value pick-up unit can detect the first pH value of described first medium, and wherein, the first pH value represents the state of described primary diaphragm.In the utility model, first pH value of the first medium of primary diaphragm encapsulation is a preset value or scope, when described primary diaphragm generation is damaged or hydrogen oozes, external agency can enter first medium through described primary diaphragm, thus causes the first pH value of first medium to change (become large or diminish).Therefore, the first pH value detected by the first pH value pick-up unit provided in the present embodiment technical scheme just can represent the state of primary diaphragm, thus solve in correlation technique the problem that cannot realize the diaphragm state of pressure unit being carried out to on-line checkingi, can the diaphragm of Timeliness coverage pressure unit whether damaged, reduce because diaphragm damages the loss caused working site.
Further, the first pH value pick-up unit in the technical program can with display device wired connection, display module or the manual operator of such as channel wire and pressure unit are connected, or wireless connections, so that on display module measurement result being presented at pressure unit or manual operator, make on-the-spot staff can read the pH value measured.
The pressure unit provided by the utility model can measure the pH value of the interior media packaged by its diaphragm in time, and according to the pH value detected detect further this diaphragm whether occur damage, the diaphragm of the diaphragm of such as pressure unit inside or the teletransmission seal of pressure unit.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the pressure unit that the first embodiment of the utility model provides;
Fig. 2 is the structural representation of the film head of pressure unit as shown in Figure 1;
Fig. 3 is the structural representation of the pressure unit that the utility model the second embodiment provides;
Fig. 4 is the structural representation of the film head of pressure unit as shown in Figure 3;
Fig. 5 is the structural representation of the pressure unit that the third embodiment of the utility model provides;
Fig. 6 is the structural representation of the teletransmission seal of pressure unit as shown in Figure 5;
Fig. 7 is the structural representation of the utility model the 4th kind of pressure unit that embodiment provides.
Embodiment
Hereinafter also describe the utility model in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment 1
Fig. 1 is the structural representation of the pressure unit that the first embodiment of the utility model provides.Fig. 2 is the structural representation of the film head of pressure unit as shown in Figure 1.
As depicted in figs. 1 and 2, the pressure unit 1 that the present embodiment provides comprises film head 12, the primary diaphragm 13 be connected with film head 12 and first medium, the secondary diaphragm be connected with film head 12 and second medium, wherein first medium is arranged between primary diaphragm 13 and film head 12.Under installment state, primary diaphragm 13 is welded on film head 12, thus is encapsulated between primary diaphragm 13 and film head 12 by first medium.Film head 12 on pressure unit 1 is also provided with the first pH value pick-up unit 14, and wherein, one end of the first pH value pick-up unit 14 can contact first medium.Pressure unit 1 also comprises display device, and display device receives and shows the first pH value signal from the first pH value pick-up unit 14, thus display device can receive and show the first pH value that the first pH value measurement mechanism 14 detects.
Pass through technique scheme, the first pH value that first pH value pick-up unit 14 is measured can reflect the state of primary diaphragm 13, pH value due to first medium is preset value, when the first pH value of the first pH value pick-up unit 14 measurement is not within the scope of normal pH value, then show that primary diaphragm 13 damages, namely the primary diaphragm 13 of on-the-spot staff's on-line checkingi pressure unit can be helped, to reduce because diaphragm damages the loss caused working site.
Preferably, the first pH value pick-up unit 14 can directly insert in first medium with the contact jaw of first medium.Thus the first pH value pick-up unit accurately can measure the pH value of first medium.
The contact jaw that first pH value pick-up unit 14 and first medium can contact is positioned at film head 12, preferably, film head 12 is also provided with the first interface channel 121, and wherein, the first interface channel 121 is for connecting contact jaw and the first medium of the first pH value pick-up unit 14.Under installment state, the first pH value pick-up unit 14 to be arranged in the first interface channel 121 and to contact first medium, with the pH value making the first pH value pick-up unit first medium can be detected.
Preferably, the first pH value pick-up unit 14 can be electrically connected display device by wire.More preferably, display device can be the display module 11 of pressure unit, manual operator or pH value test paper.As shown in Figure 1, when on the first pH value pick-up unit 14 to be electrically connected to pressure unit display module 11 by wire 17, corresponding first pH value can be presented on the display module 11 of pressure unit by the first pH value pick-up unit 14, staff can carry out on-line checkingi according to the first pH value of display to the state of primary diaphragm 13, judge whether primary diaphragm 13 is damaged, the breakage whether such as diaphragm oozes hydrogen or produce due to corrosion.PH value due to first medium is preset value, when the pH value of the first pH value pick-up unit 14 measurement is not within the scope of normal pH value, then shows that primary diaphragm 13 is damaged.
Preferably, the first pH value pick-up unit 14 can be pH value sensor.It should be noted that, first pH value pick-up unit 14 and display device also can be designed to the pH value detector tube of integral type by those skilled in the art, wherein, the end thereof contacts first medium of pH value detector tube, the other end of pH value detector tube is shown in the surface of pressure unit.Or those skilled in the art also can according to concrete applied environment, the device that may be used for detecting pH value adopting other to be applicable to.
Alternatively, those skilled in the art also according to concrete applied environment, can adopt wireless connections between display device and the first pH value pick-up unit.When adopting wireless connections, between the first pH value pick-up unit and display device, the transmission of data is convenient.
Preferably, the mounting means of the first pH value pick-up unit 14 and film head 12 is for welding, being threaded or interference fit is connected.It should be noted that, in installation process, those skilled in the art also can adopt other mounting meanss be applicable to be arranged on film head 12 by the first pH value pick-up unit 14.
The pressure unit provided by the present embodiment can realize carrying out on-line checkingi to the diaphragm of pressure unit.
It should be noted that, the first pH value pick-up unit provided in the utility model and the second pH value pick-up unit can be high pressure resistant, high temperature resistant or low temperature resistant, to adapt to the requirement of different operating environment.And, in each embodiment of the present utility model, the quantity of diaphragm is only for example, be not that any restriction is done to it, those skilled in the art are in the application process of reality, diaphragm for pressure unit can adopt one or more, further, pressure unit also can be provided with the pH value pick-up unit that one or more is mutually corresponding with this diaphragm, each pH value pick-up unit may be used for the pH value of the medium detected packaged by diaphragm corresponding thereto.By the detection of the pH value to this medium, the on-line checkingi to diaphragm can be realized.
Embodiment 2
Fig. 3 shows the pressure transmitter configurations schematic diagram that the utility model the second embodiment provides.Fig. 4 is the structural representation of the film head of pressure unit as shown in Figure 3.As shown in Figure 3 and Figure 4, the pressure unit 2 that the present embodiment provides comprises film head 22, the primary diaphragm 23 be connected with film head 22 and first medium, and wherein first medium is arranged between primary diaphragm 23 and film head 22.Pressure unit in the present embodiment is also connected with secondary diaphragm 25, and the second medium be arranged between secondary diaphragm 25 and film head 22, under installment state, primary diaphragm 23 and secondary diaphragm 25 are welded on film head 22 respectively, thus first medium and second medium are encapsulated in respectively between primary diaphragm 23 and film head 22 and between secondary diaphragm 25 and film head 22.It should be noted that, the pressure unit provided in the present embodiment is differential pressure transmitter, therefore transmitter in the present embodiment is provided with two diaphragms.Film head 22 is also respectively arranged with the first pH value pick-up unit 24 and the second pH value pick-up unit 26.Wherein, one end of the first pH value pick-up unit 24 can contact first medium, and one end of the second pH value pick-up unit 26 can contact second medium.Pressure unit 2 also comprises display device, and display device can receive and show the first pH value signal from the first pH value pick-up unit 24 and the second pH value signal from the second pH value pick-up unit 26.In the present embodiment, the pH value of first medium and second medium is preset value, when the first pH value of the first pH value pick-up unit 24 measurement is not within the scope of normal pH value, then shows that primary diaphragm 23 is damaged.When the second pH value of the second pH value pick-up unit 26 measurement is not within the scope of normal pH value, then show that secondary diaphragm 25 is damaged.
Pass through technique scheme, the first pH value that first pH value pick-up unit 24 is measured can reflect the state of primary diaphragm 23, the second pH value that second pH value pick-up unit 26 is measured can reflect the state of secondary diaphragm 25, thus two diaphragms of staff's on-line checkingi pressure unit can be helped, reduce because diaphragm damages the loss caused working site.
Preferably, the contact jaw that the first pH value pick-up unit 24 contacts with first medium can directly insert in first medium.The contact jaw of the second pH value pick-up unit 26 second medium contact can directly insert in second medium.Thus the first pH value pick-up unit and the second pH value pick-up unit accurately can measure the pH value of first medium and second medium.
Preferably, film head 22 is also provided with the first interface channel 221 and the second interface channel 222, under installment state, first pH value pick-up unit 24 to be arranged in the first interface channel 221 and to contact first medium, and the second pH value pick-up unit 26 to be arranged in the first interface channel 222 and to contact second medium with the pH value making the first pH value pick-up unit and the second pH value pick-up unit first medium and second medium can be detected respectively.
Preferably, the first pH value pick-up unit 24 and the second pH value pick-up unit 26 can be electrically connected display device respectively by wire.More preferably, display device can be the display module 21 of pressure unit, manual operator or pH value test paper.As shown in Figure 3, when on the first pH value pick-up unit 24 and the second pH value pick-up unit 26 to be electrically connected to pressure unit display module 21 respectively by wire 27, display module 21 can distinguish the first pH value and the second pH value that display measurement arrives, and staff can carry out on-line checkingi according to the state of pH value to primary diaphragm 23 and secondary diaphragm 25 of display.Because the pH value of first medium and second medium is preset value, when measure the first pH value and/or the second pH value not within the scope of normal pH value, then show primary diaphragm 23 and/or secondary diaphragm 25 damaged.
Preferably, the first pH value pick-up unit 24 and the second pH value pick-up unit can be pH value sensor.It should be noted that, those skilled in the art also can according to concrete applied environment, the device that may be used for detecting pH value adopting other to be applicable to.
Alternatively, those skilled in the art also according to concrete applied environment, can adopt wireless connections between display device and the first pH value pick-up unit and/or between display device and the second pH value pick-up unit.When adopt wireless connections time, the first pH value pick-up unit and/or between the second pH value pick-up unit and display device the transmission of data convenient.
Preferably, the mounting means of the first pH value pick-up unit 24 and/or the second pH value pick-up unit 26 and film head 22 is for welding, being threaded or interference fit is connected.It should be noted that, in installation process, those skilled in the art also can adopt other mounting meanss be applicable to.
It should be noted that, the first interface channel in this preferred implementation and the second interface channel are only for example, in the implementation process of reality, do not limit the shape of the first interface channel and the second interface channel, those skilled in the art can select the shape of each interface channel according to the needs of concrete equipment.
Embodiment 3
Fig. 5 shows the pressure transmitter configurations schematic diagram that the third embodiment of the utility model provides.Fig. 6 is the structural representation of the teletransmission seal of pressure unit as shown in Figure 5.As shown in Figure 5 and Figure 6, pressure unit 3 comprises film head 32 and the primary diaphragm be arranged on film head 32.Pressure unit 3 also comprises teletransmission seal 33, and tertiary membrane sheet 34 and the 3rd medium be arranged between tertiary membrane sheet 34 and teletransmission seal 33, teletransmission seal 33 is also provided with the 3rd pH value pick-up unit 35.Wherein, the side of teletransmission seal 33 is connected with film head 32, and the opposite side of teletransmission seal 33 is connected with tertiary membrane sheet 34, end thereof contacts the 3rd medium of the 3rd pH value pick-up unit 35; Pressure unit 3 also comprises display device, and display device can receive and show the 3rd pH value signal from the 3rd pH value pick-up unit 35.In the present embodiment, pH value due to the 3rd medium is preset value, when the 3rd pH value of the 3rd pH value pick-up unit 35 measurement is not within the scope of normal pH value, then show that tertiary membrane sheet 34 is damaged, to help the diaphragm of the teletransmission seal of staff's on-line checkingi pressure unit, reduce the loss because diaphragm damage (breakage of such as oozing hydrogen or producing due to corrosion) causes working site.
As shown in the figure, 3rd pH value pick-up unit 35 is positioned at teletransmission seal 33, and wherein, one end of the 3rd pH value pick-up unit 35 is directly inserted in the 3rd medium, and with the 3rd medium contact, with the 3rd pH value making the 3rd pH value pick-up unit 35 can detect the 3rd medium.
Preferably, teletransmission seal 33 is also provided with the 3rd interface channel 331, under installment state, the 3rd pH value pick-up unit 35 to be arranged in the 3rd interface channel 331 and to contact the 3rd medium.
Preferably, the mounting means of the 3rd pH value pick-up unit 35 and teletransmission seal 33 is for welding, being threaded or interference fit is connected.It should be noted that, in installation process, those skilled in the art also can adopt other mounting meanss be applicable to.
Preferably, the 3rd pH value pick-up unit 35 can be electrically connected display device by wire.Display device can comprise the display module 31 of pressure unit, manual operator or pH value test paper.As shown in Figure 5, when on the 3rd pH value pick-up unit 35 to be electrically connected to pressure unit display module 31 by wire 36,3rd pH value can be presented on display module 31 by the 3rd pH value pick-up unit 35, thus can carry out on-line checkingi to the state of tertiary membrane sheet 34.
Preferably, the 3rd pH value pick-up unit 35 can be pH value sensor.It should be noted that, 3rd pH value pick-up unit 35 and display device also can be designed to the pH value detector tube of integral type by those skilled in the art, wherein, end thereof contacts the 3rd medium of pH value detector tube, the other end of pH value detector tube is shown in the surface of pressure unit.Or those skilled in the art also can according to concrete applied environment, the device that may be used for detecting pH value adopting other to be applicable to.
Alternatively, those skilled in the art also according to concrete applied environment, can adopt wireless connections between display device and the 3rd pH value pick-up unit 35.When adopting wireless connections, between the 3rd pH value pick-up unit 35 and display device, the transmission of data is convenient.
It will be understood by those skilled in the art that the 3rd pH value pick-up unit provided in the utility model can be high pressure resistant, high temperature resistant or low temperature resistant, with the requirement making the 3rd pH value pick-up unit can adapt to different operating environment.
Embodiment 4
Fig. 7 shows the pressure transmitter configurations schematic diagram that the utility model the 4th kind of embodiment provides.As shown in the figure, pressure unit 4 comprises film head 42, and the primary diaphragm be arranged on film head 42 and secondary diaphragm.Pressure unit 4 also comprises the first teletransmission seal 43 and the second teletransmission seal 44, tertiary membrane sheet 45 and the 4th diaphragm 46, wherein be provided with the 3rd medium between tertiary membrane sheet 45 and the first teletransmission seal 43, the 4th medium is provided with between 4th diaphragm 46 and the second teletransmission seal 44, first teletransmission seal 43 is also provided with the 3rd pH value pick-up unit 47, second teletransmission seal 44 is also provided with the 4th pH value pick-up unit 48, and end thereof contacts the 3rd medium of the 3rd pH value pick-up unit 47, end thereof contacts the 4th medium of the 4th pH value pick-up unit 48.
Pressure unit 4 also comprises display device, and display device receives and shows the pH value signal from the 3rd pH value pick-up unit 47 and the 4th pH value pick-up unit 48.In the present embodiment, because the pH value of the 3rd medium and the 4th medium is preset value, when the 3rd pH value of the 3rd pH value pick-up unit 47 measurement is not within the scope of normal pH value, then show that tertiary membrane sheet 45 is damaged; When the 4th pH value of the 4th pH value pick-up unit 48 measurement is not within the scope of normal pH value, then show that the 4th diaphragm 46 is damaged, thus help the diaphragm of two teletransmission seals of staff's on-line checkingi pressure unit, reduce the loss because diaphragm damage (breakage of such as oozing hydrogen or producing due to corrosion) causes working site.
As shown in the figure, 3rd pH value pick-up unit 47 is positioned at the first teletransmission seal 43,4th pH value pick-up unit 48 is positioned at the second teletransmission seal 44, wherein, one end of 3rd pH value pick-up unit 47 is directly inserted in the 3rd medium, and with the 3rd medium contact, with the 3rd pH value making the 3rd pH value pick-up unit 47 detect the 3rd medium.One end of 4th pH value pick-up unit 48 is directly inserted in the 4th medium, and with the 4th medium contact, thus measure the 4th pH value of the 4th medium.
Preferably, teletransmission seal 43 is also provided with the 3rd interface channel and the 4th interface channel, under installment state, the 3rd pH value pick-up unit 47 to be arranged in the 3rd interface channel and to contact the 3rd medium, and the 4th pH value pick-up unit 48 to be arranged in the 4th interface channel and to contact the 4th medium.
Preferably, the 3rd pH value pick-up unit 47 and the first teletransmission seal 43 and the 4th pH value pick-up unit 48 are with the mounting means of the second teletransmission seal 44 and weld, to be threaded or interference fit is connected.It should be noted that, in installation process, those skilled in the art also can adopt other mounting meanss be applicable to.
Preferably, the 3rd pH value pick-up unit and the 4th pH value pick-up unit can be electrically connected display device by wire.Display device can comprise the display module 41 of pressure unit, manual operator or pH value test paper.When on the 3rd pH value pick-up unit to be electrically connected to pressure unit display module 41 by wire, the 3rd pH value that 3rd pH value pick-up unit and the 4th pH value pick-up unit detect and the 4th pH value may be displayed on display module 41, to realize carrying out on-line checkingi to the state of tertiary membrane sheet and the 4th diaphragm.
Preferably, the 3rd pH value pick-up unit and the 4th pH value pick-up unit can be pH value sensor.It should be noted that, those skilled in the art also can according to concrete applied environment, the device that may be used for detecting pH value adopting other to be applicable to.
Alternatively, those skilled in the art also according to concrete applied environment, all can adopt wireless connections between display device and each pH value pick-up unit.When adopting wireless connections, between each pH value pick-up unit and display device, the transmission of data is convenient.
Pass through above-described embodiment, the utility model provides a kind of pressure unit, the pH value of the interior media in the teletransmission seal of pressure unit can be measured in time, and by measurement result display on the display apparatus, the display of such as pressure unit or manual operator, thus whether the diaphragm making on-the-spot staff can be detected this pressure unit by the pH value shown occurs damaging.It should be noted that, these technique effects are not that above-mentioned all embodiments have, and some technique effect is that some preferred implementation just can obtain.
By the pressure unit that the utility model provides, without the need to shutdown system, and pressure unit is dismantled, whether also without the need to using the equipment of specialty or instrument just can the diaphragm of detected pressures transmitter to be in time damaged, and the earth provides on-the-spot production efficiency.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., be all included in protection domain of the present utility model.
Claims (10)
1. a pressure unit, comprise: film head, the primary diaphragm be connected with described film head, be arranged at the first medium between described primary diaphragm and described film head, the secondary diaphragm be connected with described film head and the second medium be arranged between described secondary diaphragm and described film head, it is characterized in that, described pressure unit also comprises:
Be arranged at the first pH value pick-up unit on described film head, wherein, one end of described first pH value pick-up unit can contact described first medium;
Display device, receives and shows the first pH value signal from described first pH value pick-up unit.
2. pressure unit according to claim 1, is characterized in that, described first pH value pick-up unit directly inserts in described first medium with the contact jaw that described first medium can contact.
3. pressure unit according to claim 1, it is characterized in that, described first pH value pick-up unit is positioned at described film head with the contact jaw that described first medium can contact, described film head is also provided with the first interface channel, connects the contact jaw of described first medium and described first medium respectively.
4. pressure unit according to claim 1, is characterized in that, described display device is electrically connected with described first pH value pick-up unit.
5. pressure unit according to claim 1, is characterized in that, described display device and described first pH value pick-up unit wireless connections.
6. pressure unit according to claim 1, is characterized in that, described display device is display module, manual operator or pH value test paper.
7. pressure unit according to claim 1, is characterized in that, described first pH value pick-up unit is pH value sensor;
Or the pH value detector tube that described first pH value pick-up unit and described display device are integrated, first medium described in described pH value detector tube end thereof contacts, the other end is shown in the surface of described pressure unit.
8. pressure unit according to claim 1, is characterized in that, the mounting means of described first pH value pick-up unit and described film head is for welding, being threaded or interference fit is connected.
9. pressure unit according to any one of claim 1 to 8, is characterized in that,
Described film head is also provided with the second pH value pick-up unit, one end of described second pH value pick-up unit can contact described second medium;
Described display device also receives and shows the second pH value signal from described second pH value pick-up unit.
10. pressure unit according to any one of claim 1 to 8, is characterized in that, described transmitter also comprises:
Teletransmission seal and the tertiary membrane sheet be connected with described teletransmission seal and the 3rd medium be arranged between described tertiary membrane sheet and described teletransmission seal, described teletransmission seal is also provided with the 3rd pH value pick-up unit, one end of described 3rd pH value pick-up unit can contact described 3rd medium;
Described display device also receives and shows the 3rd pH value signal from described 3rd pH value pick-up unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420873424.4U CN204405243U (en) | 2014-12-23 | 2014-12-23 | Pressure unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420873424.4U CN204405243U (en) | 2014-12-23 | 2014-12-23 | Pressure unit |
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| CN204405243U true CN204405243U (en) | 2015-06-17 |
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| CN201420873424.4U Active CN204405243U (en) | 2014-12-23 | 2014-12-23 | Pressure unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796555A (en) * | 2017-09-23 | 2018-03-13 | 南京律智诚专利技术开发有限公司 | A kind of high temperature pressure transmitter |
| CN113483938A (en) * | 2021-06-29 | 2021-10-08 | 班宁(南京)传感技术有限公司 | High-precision digital display pressure transmitter and detection method |
-
2014
- 2014-12-23 CN CN201420873424.4U patent/CN204405243U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796555A (en) * | 2017-09-23 | 2018-03-13 | 南京律智诚专利技术开发有限公司 | A kind of high temperature pressure transmitter |
| CN113483938A (en) * | 2021-06-29 | 2021-10-08 | 班宁(南京)传感技术有限公司 | High-precision digital display pressure transmitter and detection method |
| CN113483938B (en) * | 2021-06-29 | 2022-05-17 | 班宁(南京)传感技术有限公司 | High-precision digital display pressure transmitter and detection method |
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