CN211770556U

CN211770556U - Sewage treatment A2/O treatment facility

Info

Publication number: CN211770556U
Application number: CN202020092462.1U
Authority: CN
Inventors: 刘文明; 韩延镇
Original assignee: Shanxian Shuntian Special Car Manufacturing Co ltd
Current assignee: Shanxian Shuntian Special Car Manufacturing Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-10-27
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a sewage treatment A2O treatment facility, concretely relates to sewage treatment field, including the sedimentation tank, one side of sedimentation tank is run through and is installed the inlet tube, one side that the inlet tube was kept away from to the sedimentation tank runs through and installs first connecting pipe, the one end of first connecting pipe is provided with the anaerobism case, one side that the sedimentation tank was kept away from to the anaerobism case is provided with the oxygen deficiency case, one side that the anaerobism case was kept away from to the oxygen deficiency case is provided with good oxygen case, anaerobism case and oxygen deficiency case and good oxygen case all communicate each other, one side that the oxygen deficiency case was kept away from to good oxygen case is equipped with the MBR membrane case, one side of MBR membrane case is equipped with the rose box, one side bottom that the MBR membrane case was. The utility model discloses a set up anaerobism case, oxygen deficiency case, good oxygen case, MBR membrane case and rose box, carry out multi-stage treatment to sewage, make the discharged water quality can reach one-level emission standard, improved sewage treatment device's effect greatly.

Description

Sewage treatment A2/O treatment facility

Technical Field

The utility model relates to a sewage treatment technical field, more specifically say, the utility model relates to a sewage treatment A2O treatment facility.

Background

With the development of economy and the promotion of urbanization process in China, the situations of water resource shortage and water pollution aggravation are increasingly severe, the requirements of sewage treatment and recycling are increasingly urgent, the traditional centralized sewage treatment has the prominent problems of difficult sewage collection, high pipe network investment, large occupied area, long construction period and the like, and the sewage treatment rate and COD (chemical oxygen demand) reduction capacity are severely restricted, and under the condition, the distributed sewage treatment integrated technical equipment becomes a beneficial and necessary supplementary measure for the centralized sewage treatment.

However, the existing sewage treatment equipment still has many defects in actual use, such as poor precipitation effect and poor treatment effect of the treatment equipment, and the wastewater contains a large amount of organic matters and cannot be completely treated.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defects of the prior art, the embodiment of the utility model provides a sewage treatment A2/O treatment facility, the utility model aims to solve the problem that: the existing sewage treatment equipment has poor treatment effect.

In order to achieve the above object, the utility model provides a following technical scheme: A2/O sewage treatment device comprises a sedimentation tank, wherein a water inlet pipe is installed on one side of the sedimentation tank in a penetrating mode, a first connecting pipe is installed on one side, far away from the water inlet pipe, of the sedimentation tank in a penetrating mode, an anaerobic tank is arranged at one end, far away from the sedimentation tank, of the first connecting pipe, an anoxic tank is arranged on one side, far away from the sedimentation tank, of the anaerobic tank, an aerobic tank is arranged on one side, far away from the anaerobic tank, of the anoxic tank, the anaerobic tank and the anoxic tank are communicated with each other, an MBR membrane tank is arranged on one side, far away from the anoxic tank, of the aerobic tank, a filter tank is arranged on one side, far away from the aerobic tank, of the MBR membrane tank, and;

a third connecting pipe penetrates through one side, away from the filter box, of the MBR membrane box, one end, away from the MBR membrane box, of the third connecting pipe extends into the aerobic box, a plurality of groups of MBR membranes are arranged between the top and the bottom of an inner cavity of the MBR membrane box, a top block is fixedly connected to the top of the MBR membrane, the top block movably penetrates through the top of the MBR membrane box, a bottom block is fixedly connected to the bottom of the MBR membrane, the bottom block is arranged at the bottom of the inner cavity of the MBR membrane box, aeration pipes are arranged on two sides of the bottom of the inner cavity of the MBR membrane box in a penetrating manner, and a clamping mechanism is arranged at the position;

the clamping mechanism comprises a pull rod, a groove is formed in the top of the MBR membrane box, a movable hole is formed in the top of the groove in a penetrating mode, the pull rod is movably arranged in the groove and the movable hole, a clamping rod is fixedly arranged on one side of the pull rod and is perpendicular to the pull rod, a clamping groove matched with the clamping rod is formed in one side, close to the clamping rod, of the ejector block, one end, far away from the pull rod, of the clamping rod is movably arranged in the groove in a penetrating mode and is matched with the clamping groove in a clamped mode, a spring is fixedly arranged on one side, far away from the clamping groove, of the pull rod, and the spring is fixedly connected.

The implementation mode is as follows: in the actual use process, sewage is introduced into the sedimentation tank from the water inlet pipe, the flow velocity of the introduced sewage is reduced under the blocking action of the buffer plate, so that the sewage is convenient to precipitate, impurities in the sewage are pretreated, the pretreated sewage enters the anaerobic tank, the biodegradable organic matters in the sewage are converted into micromolecule fermentation products such as volatile fatty acid by anaerobic fermentation bacteria, the polyphosphate accumulating bacteria also release polyphosphate stored in the bacteria and release energy, wherein part of the energy is supplied for the obligate aerobic polyphosphate accumulating bacteria to survive in an anaerobic inhibition environment, the other part of the energy is supplied for the polyphosphate accumulating bacteria to actively absorb the fermentation products in the sewage such as VFA and the like and store in the bacteria in the form of poly-beta-hydroxy alkanoic acid, and the denitrifying bacteria carry out denitrification reaction on the impurities in the sewage by using nitrate, so as to achieve the purposes of simultaneous decarbonization and denitrification, the sewage containing lower-concentration carbon nitrogen and higher-concentration phosphorus enters the aerobic tank, the absorbed soluble phosphorus exists in the phosphorus accumulating bacteria in the form of phosphorus accumulating salt, so that the concentration of phosphorus in the sewage is greatly reduced, the sewage is subjected to secondary treatment, the sewage after the secondary treatment enters the MBR membrane tank, the MBR membrane realizes the separation of sludge retention time and retention time in water, the solid-liquid separation efficiency is greatly improved, the biochemical reaction rate is further improved, the sewage which is separated after being combined flows into the filter tank, and is further filtered by a filter screen (an activated carbon material) in the filter tank, so that the sewage can reach the primary discharge standard.

In a preferred embodiment, the top of the pull rod is fixedly sleeved with an anti-skid sleeve, and one side of the top of the MBR membrane box is hinged with a sealing cover, so that the sealing performance of the MBR membrane box is improved, and the pull rod is convenient for a user to pull.

In a preferred embodiment, a plurality of groups of aeration holes which are uniformly distributed penetrate through the rod wall of the aeration pipe, the aeration holes and the rod wall of the aeration pipe are obliquely arranged, and the aeration is covered completely.

In a preferred embodiment, one side fixed mounting that anaerobism incasement chamber bottom is close to first connecting pipe has the current conducting plate, one side fixed mounting that anaerobism incasement chamber bottom is close to the second connecting pipe has oblique dog, fixed mounting has the multiunit lug on the inclined plane of oblique dog, the top fixed mounting of lug has magnet, and the current conducting plate circular telegram makes its adsorbable some light and small impurity, accelerates the sediment of impurity, and oblique dog and lug are convenient for carry out the unhurried current to rivers to improve impurity precipitation effect, the metal impurity in the adsorbable impurity of magnet.

In a preferred embodiment, the equal fixed mounting in inner chamber top and the bottom of sedimentation tank has the multiunit and retards the class board, the multiunit the board is crisscross to be set up to the slow flow, the top fixed mounting of anaerobism case has the baffle, is convenient for carry out the slow flow to rivers to improve impurity sedimentation effect.

In a preferred embodiment, the back flow is installed through the top of MBR membrane case, the back flow is kept away from the one end of MBR membrane case and the top through connection of anaerobism case, install the self priming pump on the pipe wall of back flow, be convenient for carry out the heavy reaction with in the MBR membrane case sewage backward flow to the anaerobism case, further improve equipment is to the treatment effect of sewage.

In a preferred embodiment, a fourth connecting pipe is installed on one side, far away from the drain pipe, of the filter box in a penetrating mode, one end, far away from the filter box, of the fourth connecting pipe is connected with the MBR membrane box in a penetrating mode, a plurality of groups of filter screens are arranged between the top and the bottom of the inner cavity of the filter box, last filtering is conducted on sewage conveniently, and the sewage treatment effect is further improved.

In a preferred embodiment, the top of the filter screen movably penetrates through the top of the filter box, a sealing gasket is fixedly sleeved outside the top of the filter screen, and the top of the filter screen is in sealing contact with the top of an inner cavity of the filter box, so that the sealing performance of the filter box is improved.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up anaerobism case, oxygen deficiency case, good oxygen case, MBR membrane case and rose box, carry out multistage processing to sewage, make suspended solid and turbidity in the sewage approach zero, bacterium and virus are got rid of by a wide margin, the discharged water quality can reach one-level emission standard, the effect of sewage treatment equipment is greatly improved, simultaneously, MBR membrane separation also makes the microorganism be dammed up in the left side of MBR membrane completely, good play water quality is guaranteed, compared with the prior art, there is the progress that improves sewage treatment equipment result of use;

2. the utility model discloses a set up block mechanism, when needing to dismantle the MBR membrane, the pulling pull rod, the pull rod slides in the movable hole, and the spring is compressed, and the pull rod drives the kelly and withdraws from the draw-in groove, and staff pulling kicking block can take the MBR membrane out from the MBR membrane case to change the washing, greatly reduced the staff dismantle the degree of difficulty and the intensity of labour of MBR membrane, compare with prior art, have the progress of being convenient for change and clearance MBR membrane.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the anaerobic tank of the present invention;

FIG. 3 is a schematic structural view of the inclined stopper of the present invention;

FIG. 4 is a schematic structural diagram of the MBR membrane box of the present invention;

fig. 5 is an enlarged schematic view of the structure at a in fig. 4 according to the present invention.

The reference signs are: 1 sedimentation tank, 11 inlet tubes, 12 first connecting pipes, 13 flow slowing plates, 2 anaerobism case, 21 second connecting pipe, 22 baffles, 23 current conducting plates, 24 oblique dog, 25 lugs, 251 magnet, 3 oxygen deficiency case, 4 good oxygen case, 5 MBR membrane case, 501 recess, 502 movable hole, 51 third connecting pipe, 52 MBR membrane, 521 kicking block, 522 bottom block, 53 aeration pipe, 531 aeration hole, 54 sealed lid, 6 rose box, 61 fourth connecting pipe, 62 drain pipes, 63 filter screen, 64 sealed pad, 7 back flow pipe, 71 self priming pump, 8 block mechanism, 81 pull rod, 811 antiskid cover, 82 kelly, 821 draw-in groove, 83 spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model relates to a sewage treatment A2O treatment facility of embodiment can include sedimentation tank 1, one side of sedimentation tank 1 is run through and is installed inlet tube 11, one side that sedimentation tank 1 kept away from inlet tube 11 is run through and is installed first connecting pipe 12, the one end that sedimentation tank 1 was kept away from to first connecting pipe 12 is provided with anaerobism case 2, one side that sedimentation tank 1 was kept away from to anaerobism case 2 is provided with oxygen deficiency case 3, one side that anaerobism case 2 was kept away from to oxygen deficiency case 3 is provided with good oxygen case 4, anaerobism case 2 and oxygen deficiency case 3 and good oxygen case 4 all communicate each other, one side that oxygen deficiency case 3 was kept away from to good oxygen case 4 is equipped with MBR membrane case 5, one side that good oxygen case 4 was kept away from to MBR membrane case 5 is equipped with rose box 6, one side bottom that MBR membrane case 5 was kept away from to rose box 6 runs.

Referring to fig. 1 to 4 of the specification, a third connecting pipe 51 is installed through one side of an MBR membrane box 5, which is far away from a filter box 6, of the sewage treatment a2/O treatment device of this embodiment, one end of the third connecting pipe 51, which is far away from the MBR membrane box 5, extends into an aerobic box 4, a plurality of groups of MBR membranes 52 are arranged between the top and the bottom of an inner cavity of the MBR membrane box 5, a top block 521 is fixedly connected to the top of the MBR membranes 52, the top block 521 movably penetrates through the top of the MBR membrane box 5, a bottom block 522 is fixedly connected to the bottom of the MBR membranes 52, the bottom block 522 is arranged at the bottom of the inner cavity of the MBR membrane box 5, aeration pipes 53 are respectively arranged on two sides of the bottom of the inner cavity of the MBR membrane box 5, and a clamping mechanism.

Clamping mechanism 8 includes pull rod 81, recess 501 is seted up at the top of MBR membrane case 5, movable hole 502 has been seted up in the top of recess 501 runs through, in recess 501 and movable hole 502 were located in the activity of pull rod 81, one side fixed mounting of pull rod 81 has kelly 82, kelly 82 sets up with pull rod 81 is perpendicular, draw-in groove 821 with kelly 82 looks adaptation is seted up to one side that kicking block 521 is close to kelly 82, the one end activity of keeping away from pull rod 81 of kelly 82 runs through recess 501 and cooperates with draw-in groove 821 joint, one side fixed mounting that draw-in groove 821 was kept away from to pull rod 81 has spring 83, the one end and recess 501 fixed connection that pull rod 81 was kept away from to spring 83.

As shown in fig. 1 to 4, the implementation scenario specifically includes: in actual use, by arranging the MBR membrane box 5, sewage subjected to secondary treatment flows into the MBR membrane box 5 from the aerobic box 4, due to the high-efficiency separation effect of the MBR membrane 52, the separation effect is far better than that of a traditional sedimentation tank, treated water is extremely clear, suspended matters and turbidity are close to zero, bacteria and viruses are greatly removed, discharged water quality can reach a first-level discharge standard, the effect of sewage treatment equipment is greatly improved, meanwhile, microorganisms are completely intercepted on the left side of the MBR membrane 52 by membrane separation, good water quality is ensured, by arranging the clamping mechanism 8, when needing to disassemble the MBR membrane 52, the pull rod 81 is pulled, the pull rod 81 slides in the movable hole 502, the spring 83 is compressed, the pull rod 81 drives the clamping rod 82 to withdraw from the clamping groove 821, a worker can pull the top block 521 to pull out the MBR membrane 52 from the MBR membrane box 5 for replacement and cleaning, the difficulty and labor intensity of the worker in disassembling the MBR membrane 52 are greatly reduced, this embodiment has specifically solved the MBR membrane that exists among the prior art and is not convenient for dismantle the abluent problem of change.

The top of the pull rod 81 is fixedly sleeved with an anti-skid sleeve 811, and one side of the top of the MBR membrane box 5 is hinged with a sealing cover 54.

A plurality of groups of aeration holes 531 which are uniformly distributed penetrate through the rod wall of the aeration pipe 53, and the aeration holes 531 and the rod wall of the aeration pipe 53 are obliquely arranged.

The utility model discloses a safe anaerobic fermentation device, including anaerobism case 2, one side fixed mounting that anaerobism case 2 inner chamber bottom is close to first connecting pipe 12 has a current-conducting plate 23, one side fixed mounting that anaerobism case 2 inner chamber bottom is close to second connecting pipe 21 has oblique dog 24, fixed mounting has multiunit lug 25 on the inclined plane of oblique dog 24, the top fixed mounting of lug 25 has magnet 251.

The top and the bottom of the inner cavity of the sedimentation tank 1 are fixedly provided with a plurality of groups of flow buffering plates 13, the flow buffering plates 13 are arranged in a staggered mode, and the top of the anaerobic tank 2 is fixedly provided with a baffle 22.

The top of MBR membrane case 5 runs through and installs back flow 7, the back flow 7 is kept away from the one end of MBR membrane case 5 and the top through connection of anaerobism case 2, install self priming pump 71 on the pipe wall of back flow 7.

One side of the filter box 6, which is far away from the drain pipe 62, is provided with a fourth connecting pipe 61 in a penetrating manner, one end of the fourth connecting pipe 61, which is far away from the filter box 6, is connected with the MBR membrane box 5 in a penetrating manner, and a plurality of groups of filter screens 63 are arranged between the top and the bottom of the inner cavity of the filter box 6.

The top activity of filter screen 63 runs through the top of rose box 6, just the fixed cover in top of filter screen 63 is equipped with sealed the pad 64 outward, the top of sealed pad 64 and the inner chamber top sealing contact of rose box 6.

As shown in fig. 1 to 5, the implementation scenario specifically includes: in practical use, the anti-slip sleeve 811 and the sealing cover 54 are arranged, so that the sealing performance of the MBR membrane box 5 is improved, a user can pull the pull rod 81 conveniently, the aeration hole 531 and the inclination angle are arranged, the aeration hole 531 is inclined upwards and blows air towards the MBR membrane box 5, the aeration coverage is comprehensive, the aeration pipeline is arranged only in the periphery of the MBR membrane box 5, the MBR membrane box 5 can be aerated in all directions, the end part of the aeration pipe 53 is communicated with the air outlet of an external air blower, the current conducting plate 23 is electrically connected with an external electrostatic generator by arranging the current conducting plate 23, the inclined baffle block 24, the lug 25 and the magnet 251, the current conducting plate 23 is electrified to adsorb some light and small impurities, the precipitation of the impurities is accelerated, the inclined baffle block 24 and the lug 25 are convenient for slow flow of water flow, the impurity precipitation effect is improved, and the magnet 251 can adsorb metal impurities in the impurities, through setting up back flow 7 and self priming pump 71, be convenient for carry out the heavy reaction with the interior sewage backward flow of MBR membrane case 5 to anaerobism case 2 in, further improve equipment is through setting up filter screen 63 to the treatment effect of sewage, filter screen 63 is the active carbon material, is convenient for further adsorb impurity and peculiar smell in the sewage, and then the equipment exhaust water of being convenient for can reach one-level emission standard, and the poor problem of sewage treatment device treatment effect that exists among the prior art has specifically been solved to this embodiment.

In summary, the following steps: the utility model discloses a set up MBR membrane case 5, the sewage through secondary treatment flows into MBR membrane case 5 in from good oxygen case 4, because MBR membrane 52's high-efficient separation effect, the separation effect is far away better than traditional sedimentation tank, it is extremely limpid to handle out water, suspended solid and turbidity are close to zero, bacterium and virus are got rid of by a wide margin, the discharged water quality can reach one-level emission standard, improve sewage treatment device's effect greatly, and simultaneously, membrane separation also makes the microorganism be dammed up in MBR membrane 52's left side completely, good play water quality of water has been guaranteed.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewage treatment A2/O treatment equipment, which comprises a sedimentation tank (1), and is characterized in that: a water inlet pipe (11) is arranged on one side of the sedimentation tank (1) in a penetrating way, a first connecting pipe (12) is arranged on one side of the sedimentation tank (1) far away from the water inlet pipe (11) in a penetrating way, an anaerobic tank (2) is arranged at one end of the first connecting pipe (12) far away from the sedimentation tank (1), an anoxic tank (3) is arranged on one side of the anaerobic tank (2) far away from the sedimentation tank (1), an aerobic tank (4) is arranged on one side of the anoxic tank (3) far away from the anaerobic tank (2), the anaerobic tank (2) and the anoxic tank (3) as well as the anoxic tank (3) and the aerobic tank (4) are communicated with each other, an MBR membrane box (5) is arranged on one side of the aerobic box (4) far away from the anoxic box (3), a filter box (6) is arranged on one side of the MBR membrane box (5) far away from the aerobic box (4), a drain pipe (62) penetrates through the bottom of one side, away from the MBR membrane box (5), of the filter box (6);

a third connecting pipe (51) penetrates through one side, far away from the filter box (6), of the MBR membrane box (5), one end, far away from the MBR membrane box (5), of the third connecting pipe (51) extends into the aerobic box (4), a plurality of groups of MBR membranes (52) are arranged between the top and the bottom of an inner cavity of the MBR membrane box (5), a top block (521) is fixedly connected to the top of the MBR membranes (52), the top block (521) movably penetrates through the top of the MBR membrane box (5), a bottom block (522) is fixedly connected to the bottom of the MBR membranes (52), the bottom block (522) is arranged at the bottom of the inner cavity of the MBR membrane box (5), aeration pipes (53) penetrate through two sides of the bottom of the inner cavity of the MBR membrane box (5), and a clamping mechanism (8) is arranged at a position, near the top of the MBR membrane box (5);

block mechanism (8) include pull rod (81), recess (501) are seted up at the top of MBR membrane case (5), movable hole (502) have been seted up through at the top of recess (501), recess (501) and movable hole (502) are located in pull rod (81) activity, one side fixed mounting of pull rod (81) has kelly (82), kelly (82) set up with pull rod (81) are perpendicular, draw-in groove (821) with kelly (82) looks adaptation are seted up to one side that kicking block (521) are close to kelly (82), the one end activity of keeping away from pull rod (81) of kelly (82) runs through recess (501) and cooperates with draw-in groove (821) joint, one side fixed mounting that draw-in groove (821) were kept away from in pull rod (81) has spring (83), the one end and recess (501) fixed connection that pull rod (81) were kept away from in spring (83).

2. The sewage treatment A2/O treatment device according to claim 1, wherein: the top of pull rod (81) is fixed to be equipped with anti-skidding cover (811), the top one side of MBR membrane case (5) articulates there is sealed lid (54).

3. The sewage treatment A2/O treatment device according to claim 1, wherein: a plurality of groups of aeration holes (531) which are uniformly distributed penetrate through the rod wall of the aeration pipe (53), and the aeration holes (531) and the rod wall of the aeration pipe (53) are obliquely arranged.

4. The sewage treatment A2/O treatment device according to claim 1, wherein: anaerobism case (2) inner chamber bottom is close to one side fixed mounting of first connecting pipe (12) has current conducting plate (23), one side fixed mounting that anaerobism case (2) inner chamber bottom is close to second connecting pipe (21) has oblique dog (24), fixed mounting has multiunit lug (25) on the inclined plane of oblique dog (24), the top fixed mounting of lug (25) has magnet (251).

5. The sewage treatment A2/O treatment device according to claim 1, wherein: the inner chamber top and the bottom of sedimentation tank (1) all fixed mounting have multiunit buffer flow board (13), the multiunit buffer flow board (13) crisscross the setting, the top fixed mounting of anaerobism case (2) has baffle (22).

6. The sewage treatment A2/O treatment device according to claim 1, wherein: the top of MBR membrane case (5) is run through and is installed back flow (7), the one end that MBR membrane case (5) was kept away from in back flow (7) is run through with the top of anaerobism case (2) and is connected, install self priming pump (71) on the pipe wall of back flow (7).

7. The sewage treatment A2/O treatment device according to claim 1, wherein: one side of the filter box (6) far away from the drain pipe (62) is provided with a fourth connecting pipe (61) in a penetrating mode, one end of the fourth connecting pipe (61) far away from the filter box (6) is connected with the MBR membrane box (5) in a penetrating mode, and a plurality of groups of filter screens (63) are arranged between the top of the inner cavity of the filter box (6) and the bottom of the inner cavity of the filter box (6).

8. The sewage treatment A2/O treatment device according to claim 7, wherein: the top activity of filter screen (63) runs through the top of rose box (6), just the top of filter screen (63) is outer fixed cover and is equipped with sealed pad (64), the top of sealed pad (64) and the inner chamber top sealing contact of rose box (6).