CN204283891U - A kind of roots-type vapour compression machine - Google Patents
A kind of roots-type vapour compression machine Download PDFInfo
- Publication number
- CN204283891U CN204283891U CN201420731682.9U CN201420731682U CN204283891U CN 204283891 U CN204283891 U CN 204283891U CN 201420731682 U CN201420731682 U CN 201420731682U CN 204283891 U CN204283891 U CN 204283891U
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- CN
- China
- Prior art keywords
- overcoat
- compression machine
- vapour compression
- ring
- mechanical seal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
A kind of roots-type vapour compression machine, relate to vapour compression machine technical field, for solving existing vapour compression machine when transmission shaft is to the problem easily causing fluid leakage when collecting together larger, and cooling is carried out to mechanical seal ensure that mechanical sealing element is in best effort environment.This vapour compression machine, throw-out collar end face coordinates with the end contact of rotating ring all the time and is adjacent to, and the relative throw-out collar of rotating ring slides simultaneously.This mechanical seal adopts between two stationary rings, arranges the structure of a rotating ring, make throw-out collar on stationary ring all the time with rotating ring end face close contact, avoid the generation of fluid leakage.The setting of detent and set screw avoids relatively rotating, for the seal action of seal ring provides safeguard between sealing inner sleeve and transmission shaft.Vapour compression machine main body arranging cooling water recirculation system, by flowing through the cooling water of water intake and water outlet, realizing the cooling to mechanical seal, for mechanical seal provides good environment, to avoid the leakage of fluid.
Description
Technical field
The utility model relates to vapour compression machine technical field, specifically a kind of roots-type vapour compression machine.
Background technique
Vapour compression machine is heat recovery system improves vapor (steam) temperature and pressure by compression key equipment to the steam produced, and effect carries out temperature-pressure to the steam of low temperature, to reach the temperature and pressure of engineering and technological requirement.Existing vapour compression machine mechanical seal sealing effect is bad, and when blower fan transmission shaft easily causes fluid leakage to when collecting together large, in the course of the work, mechanical seal and transmission shaft temperature rise, the fluid leakage caused is serious for vapour compression machine.After the temperature rising of mechanical sealing element, expanded by heating causes the cooperation of mechanical sealing element inside no longer accurate, and then causes the seal action of mechanical seal to lose efficacy, and leakage amount of fluid increases, and there is no good solution at present.
Model utility content
The purpose of this utility model is to provide a kind of roots-type vapour compression machine, for solving existing vapour compression machine when transmission shaft is to the problem easily causing fluid leakage when collecting together larger, and cooling is carried out to mechanical seal ensure that mechanical sealing element is in best effort environment.
The technical scheme in the invention for solving the technical problem is: a kind of roots-type vapour compression machine, comprise mechanical seal, steam inlet, steam (vapor) outlet, driving shaft and driven shaft, described driving shaft and driven shaft are provided with rotor, it is characterized in that, wallboard is provided with at the two ends of vapour compression machine main body, in described wallboard, mechanical seal is installed
Described mechanical seal comprises the first overcoat, the second overcoat, rotating ring, stationary ring, spring, seal ring and sealing inner sleeve, described first overcoat and the second overcoat are the metalwork of ring and are connected to one by connecting bolt, and the surface of contact of described first overcoat and the second overcoat is provided with seal ring; A stationary ring is respectively equipped with in the inner chamber of described first overcoat and the second overcoat, a seal ring is respectively equipped with at stationary ring described in two and between the first overcoat and the second overcoat, at described stationary ring and the first overcoat, between stationary ring and the second overcoat, be respectively equipped with a spring, the end face that stationary ring described in two is relative is respectively equipped with a throw-out collar, described in two, between throw-out collar, is provided with a rotating ring; The inwall of described rotating ring contacts with the sealing inner sleeve be fixed on transmission shaft and coordinates, and is provided with seal ring on described rotating ring with the surface of contact of sealing inner sleeve, and the left and right end face of described rotating ring coordinates with the end contact of corresponding throw-out collar respectively; The inwall contacting the described sealing inner sleeve coordinated with transmission shaft is provided with the groove of annular, a detent is provided with in one end of described sealing inner sleeve, described detent is connected with sealing inner sleeve by set screw, and one end of described set screw is through the side stretching to transmission shaft place after sealing inner sleeve;
Described first overcoat or the second outer cover are provided with water intake and water outlet;
Also comprise the cooling water recirculation system running through mechanical seal.
Further, described cooling water recirculation system comprises four-way, first sebific duct, second sebific duct, 3rd sebific duct, 4th sebific duct, first threeway and the second threeway, one of them interface of described four-way is cooling water intake, its excess-three interface of described four-way is connected to two the first sebific ducts and second sebific duct, the described the other end of the second sebific duct is communicated with the casing of vapour compression machine, described in each, the other end of the first sebific duct connects one first threeway, all the other two interfaces of the first threeway described in each connect one the 3rd sebific duct respectively, described in each, the other end of the 3rd sebific duct is communicated with the water intake of corresponding mechanical seal, described in each, the water outlet of mechanical seal is connected with the 4th sebific duct, and four described 4th sebific ducts are divided into two groups, and between every two the 4th sebific ducts in groups, be provided with the second threeway, the 3rd interface of described second threeway is coolant outlet.
Further, described wallboard comprises the left sideboard and right sideboard that be arranged in parallel, between described left sideboard and right sideboard, be provided with some connecting plates; Described left sideboard is provided with two bearing chamber pilot holes setting up and down, described right sideboard is provided with two mechanical seal assembly holes setting up and down, mechanical seal assembly hole described in two is corresponding with two bearings room pilot hole respectively to be arranged, and the mechanical seal assembly hole of corresponding setting and bearing chamber pilot hole coaxial line are arranged.
Further, described seal ring is O type circle.
Further, the seal ring quantity be arranged between sealing inner sleeve and transmission shaft is two.
Further, described first overcoat and the second outer cover are respectively equipped with a groove, and described in two, the mounting end of spring is separately fixed in the groove of the first overcoat and the second overcoat.
Further, described rotating ring soaks damp furan by graphite and makes.
Further, at the surface spraying Tungsten carbite of described stationary ring.
The beneficial effects of the utility model are: a kind of roots-type vapour compression machine that the utility model provides, and throw-out collar end face coordinates with the end contact of rotating ring all the time and is adjacent to, and the relative throw-out collar of rotating ring slides simultaneously.This mechanical seal adopts between two stationary rings, arranges the structure of a rotating ring, make throw-out collar on stationary ring all the time with rotating ring end face close contact, avoid the generation of fluid leakage.The setting of detent and set screw avoids relatively rotating, for the seal action of seal ring provides safeguard between sealing inner sleeve and transmission shaft.Vapour compression machine main body arranging cooling water recirculation system, by flowing through the cooling water of water intake and water outlet, realizing the cooling to mechanical seal, for mechanical seal provides good environment, to avoid the leakage of fluid.
Accompanying drawing explanation
Fig. 1 is schematic top plan view of the present utility model;
Fig. 2 is left view of the present utility model;
Fig. 3 is front view of the present utility model;
Fig. 4 is worm's eye view of the present utility model;
Fig. 5 be mechanical seal with transmission shaft coordinate schematic diagram;
Fig. 6 is the cross-sectional schematic of Fig. 5;
Fig. 7 is the B place partial enlarged drawing in Fig. 6;
Fig. 8 is the front view of wallboard;
Fig. 9 is the rear view of wallboard;
Figure 10 is wallboard cross-sectional schematic;
In figure: 1 steam inlet, 2 steam (vapor) outlets, 3 wallboards, 31 left sideboards, 32 right sideboards, 33 connecting plates, 41 four-ways, 42 first sebific ducts, 43 second sebific ducts, 44 first threeways, 45 the 3rd sebific ducts, 46 valves, 47 second threeways, 48 the 4th sebific ducts, 5 transmission shafts, 61 first overcoats, 62 second overcoats, 621 water intakes, 622 water outlets, 63 connecting bolts, 64 set screws, 65 springs, 66 stationary rings, 67 rotating rings, 68 sealing inner sleeves, 69 seal rings, 71 detents, 72 throw-out collars, 81 bearing chamber pilot holes, 82 mechanical seal assembly holes, 83 tapped holes.
Embodiment
As shown in Figures 1 to 10, the utility model comprises steam inlet 1, steam (vapor) outlet 2, wallboard 3, vapour compression machine main body, cooling water recirculation system, mechanical seal and transmission shaft 5, is described the utility model below in conjunction with accompanying drawing.
Vapour compression machine main body is skeleton of the present utility model, wallboard 3 is respectively equipped with in the both sides of vapour compression machine, two wallboards are provided with four mechanical seals, the two ends of transmission shaft are arranged in mechanical sealing element respectively, transmission shaft comprises driving shaft and driven shaft, and driving shaft and driven shaft are separately installed with rotor, two rotor move toward one another, realize the compression to steam, to improve vapor pressure.
As shown in Figure 5, the main body of this mechanical seal is the metalwork that the first overcoat 61 and the second overcoat 62, first overcoat and the second overcoat are ring, as shown in Figure 6, first overcoat and the right setting of second overcoat one the first from left, the first overcoat and the second overcoat are linked together by connecting bolt 63.Connecting bolt is circumferentially evenly arranged on the second outer cover, to realize being fastenedly connected of the first overcoat and the second overcoat.For ensureing good seal between the first overcoat and the second overcoat, the surface of contact of the first overcoat and the second overcoat is provided with seal ring.The cylindrical outer wall of the second overcoat is radially provided with water intake 621 and water outlet 622, the line in water intake and the second overcoat center of circle and water outlet and the second overcoat center of circle be wired to an obtuse angle angle, inject cooling water by water intake, flow out through water outlet after cooling water cools mechanical seal.
As shown in Figure 7, a stationary ring 66 is respectively equipped with in the inside of the first overcoat and the second overcoat, stationary ring 66 is the metalwork of ring, surface spraying Tungsten carbite, between two stationary rings and first, second overcoat, be respectively equipped with a spring 65, the two ends of left side spring are fixedly connected with the first overcoat with stationary ring respectively, and the two ends of right side spring are fixedly connected with the second overcoat with stationary ring respectively, stationary ring can do axial moving relative to first, second overcoat, and displacement distance is less.First overcoat and the second outer cover are respectively equipped with a groove, and described in two, the mounting end of spring is separately fixed in the groove of the first overcoat and the second overcoat.The end face that two stationary rings are relative is respectively equipped with a throw-out collar be made up of high-abrasive material 72, a rotating ring 67 is provided with between two throw-out collars, rotating ring is that the graphite of ring soaks damp furan (M106K) part, and the both ends of the surface of rotating ring contact with two throw-out collars respectively, and rotating ring can rotate relative to stationary ring.In the inner chamber of rotating ring, be provided with a sealing inner sleeve 68, sealing inner sleeve is the metalwork of the ring with certain transmission axial length, the inwall of sealing inner sleeve and transmission shaft wall contacts, and is provided with seal ring 69 on transmission shaft with the surface of contact of sealing inner sleeve; For ensureing the close contact of sealing inner sleeve and transmission shaft, in sealing, cover is provided with a detent 71, detent is provided with a set screw 64, the lower end of set screw tightly withstand on transmission shaft, realize relative fixing with between transmission shaft of sealing inner sleeve by set screw.Sealing inner sleeve inwall on be provided with a circular groove, circular groove be arranged so that sealing inner sleeve and transmission shaft between form an annular space.Rotating ring can opposing seal inner sleeve rotate, and the surface of contact sealing inner sleeve and rotating ring is provided with seal ring 69, and seal ring and transmission shaft interference fit, to ensure sealing effect.Above-mentioned all seal rings all adopt O type circle, to ensure good sealing effect.
During work under the elastic force effect of hydrodynamic pressure and spring, throw-out collar end face coordinates with the end contact of rotating ring all the time and is adjacent to, and the relative throw-out collar of rotating ring slides simultaneously.This mechanical seal adopts between two stationary rings, arranges the structure of a rotating ring, make throw-out collar on stationary ring all the time with rotating ring end face close contact, avoid the generation of fluid leakage.
In the course of the work, temperature rise is very fast, when the inner member temperature of mechanical seal is elevated to a certain degree in mechanical seal, expanded by heating, cause each component of mechanical seal to coordinate no longer closely, accurately, make between stationary ring and the surface of contact of rotating ring, to there is comparatively wide arc gap, cause fluid to leak serious.For this reason, the utility model is provided with cooling water recirculation system in vapour compression machine main body, and this cooling water recirculation system, through mechanical seal, cools to mechanical sealing element.
As shown in Figures 1 to 4, cooling water recirculation system comprises the threeway 44 of four-way 41, first sebific duct 42, second sebific duct 43, first, the 3rd sebific duct 45, valve 46, second threeway 47 and the 4th sebific duct 48.As shown in Figure 1 and Figure 2, in vapour compression machine, be provided with two transmission shafts, be respectively driving shaft and driven shaft, driving shaft and driven shaft are fixed with a rotor respectively, by the rotation in opposite directions of two rotors, steam is compressed, to improve the pressure of steam.Installation driving shaft and driven shaft are rotated in acting as of wallboard 3, and mechanical seal is arranged in wallboard.One second sebific duct 43 is communicated with the steam inlet 1 of vapour compression machine, a four-way 41 is connected at the other end of the second sebific duct, the second sebific duct between four-way and steam inlet is installed a valve 46, with the break-make of pilot line, the consumption regulating sealing water, to prevent sealing dilutional hyponatremia from causing the larger resistance caused blower fan, and prevent the very few effect not having sealing of sealing water.On any two interfaces of its excess-three interface of four-way, (the second interface and the 3rd interface) divides no matter is connected with the first sebific duct 42,4th interface of four-way is cooling water intake, for injecting cooling water, the first threeway 44, two the first threeways are connected with corresponding with two, left and right wallboard respectively at the other end of each the first sebific duct.All the other two interfaces of each the first threeway are connected with the 3rd sebific duct 45, the other end of each the 3rd sebific duct connects with the water intake 621 of corresponding mechanical seal, namely draw one the 3rd sebific ducts from two interfaces of the first threeway, realize being communicated with of the first threeway and mechanical seal by the 3rd sebific duct.
As shown in Figure 3, Figure 4, two the 4th sebific ducts 48 are connected with in the bottom of each mechanical seal, each the 4th sebific duct is communicated with the water outlet 622 of mechanical seal and then is indirectly communicated with the 3rd corresponding sebific duct, four the 4th sebific ducts are divided into two groups, and corresponding 4th sebific duct that the 4th sebific duct in left side mechanical sealing seals with right side mechanical is one group.And between two in groups the 4th sebific duct, be connected with one second threeway 47, second threeway have two, first, second interface of each the second threeway is used for being connected with the 4th sebific duct in groups, and the 3rd interface of each the second threeway is coolant outlet.
During work, cooling water is injected by the cooling water intake of four-way, two the first threeways are flowed to by two-way first sebific duct after cooling water enters four-way, after cooling water enters each first threeway, point two-way flows in mechanical seal by the 3rd sebific duct, then enter into mechanical seal inner chamber through the water intake of mechanical seal to cool, eventually pass the 4th sebific duct and flow to the second threeway, the coolant outlet through the second threeway after the cooling water completing cooling operations enters the second threeway flows out.Cooling water enters in mechanical seal and carries out cooling down to mechanical sealing element, to ensure the normal working environment of mechanical sealing element.
Wallboard act as fixed installation mechanical seal, as shown in Fig. 8 to Figure 10, wallboard 3 comprises the left sideboard 31 and right sideboard 32 that be arranged in parallel, and left sideboard is fixedly connected with by connecting plate with right sideboard; Left sideboard has two bearing chamber pilot holes 81, and two bearings room pilot hole is symmetrical on left sideboard; Right sideboard has mechanical seal assembly hole, two mechanical seal assembly holes 82, two is corresponding with two bearings room pilot hole respectively to be arranged, and the dead in line of the axis in mechanical seal assembly hole and corresponding bearing chamber pilot hole.The identical tapped hole of diameter 83 is evenly distributed with respectively with the edge of right sideboard, so that the installation of wallboard at left sideboard.Some connecting plates be evenly arranged are set between left sideboard and right sideboard, make wallboard become hollow structure, decrease the gross weight of wallboard and whole compressor, improve radiating effect.It is shaping that this wallboard can complete the main body of wallboard by cast molding technology, and then carry out the machining in hole.
Claims (8)
1. a roots-type vapour compression machine, comprises mechanical seal, steam inlet, steam (vapor) outlet, driving shaft and driven shaft, and described driving shaft and driven shaft are provided with rotor, it is characterized in that, be provided with wallboard at the two ends of vapour compression machine main body, in described wallboard, mechanical seal be installed
Described mechanical seal comprises the first overcoat, the second overcoat, rotating ring, stationary ring, spring, seal ring and sealing inner sleeve, described first overcoat and the second overcoat are the metalwork of ring and are connected to one by connecting bolt, and the surface of contact of described first overcoat and the second overcoat is provided with seal ring; A stationary ring is respectively equipped with in the inner chamber of described first overcoat and the second overcoat, a seal ring is respectively equipped with at stationary ring described in two and between the first overcoat and the second overcoat, at described stationary ring and the first overcoat, between stationary ring and the second overcoat, be respectively equipped with a spring, the end face that stationary ring described in two is relative is respectively equipped with a throw-out collar, described in two, between throw-out collar, is provided with a rotating ring; The inwall of described rotating ring contacts with the sealing inner sleeve be fixed on transmission shaft and coordinates, and is provided with seal ring on described rotating ring with the surface of contact of sealing inner sleeve, and the left and right end face of described rotating ring coordinates with the end contact of corresponding throw-out collar respectively; The inwall contacting the described sealing inner sleeve coordinated with transmission shaft is provided with the groove of annular, a detent is provided with in one end of described sealing inner sleeve, described detent is connected with sealing inner sleeve by set screw, and one end of described set screw is through the side stretching to transmission shaft place after sealing inner sleeve;
Described first overcoat or the second outer cover are provided with water intake and water outlet;
Also comprise the cooling water recirculation system running through mechanical seal.
2. a kind of roots-type vapour compression machine according to claim 1, it is characterized in that, described cooling water recirculation system comprises four-way, first sebific duct, second sebific duct, 3rd sebific duct, 4th sebific duct, first threeway and the second threeway, one of them interface of described four-way is cooling water intake, its excess-three interface of described four-way is connected to two the first sebific ducts and second sebific duct, the described the other end of the second sebific duct is communicated with the casing of vapour compression machine, described in each, the other end of the first sebific duct connects one first threeway, all the other two interfaces of the first threeway described in each connect one the 3rd sebific duct respectively, described in each, the other end of the 3rd sebific duct is communicated with the water intake of corresponding mechanical seal, described in each, the water outlet of mechanical seal is connected with the 4th sebific duct, and four described 4th sebific ducts are divided into two groups, and between every two the 4th sebific ducts in groups, be provided with the second threeway, the 3rd interface of described second threeway is coolant outlet.
3. a kind of roots-type vapour compression machine according to claim 1, is characterized in that, described wallboard comprises the left sideboard and right sideboard that be arranged in parallel, between described left sideboard and right sideboard, be provided with some connecting plates; Described left sideboard is provided with two bearing chamber pilot holes setting up and down, described right sideboard is provided with two mechanical seal assembly holes setting up and down, mechanical seal assembly hole described in two is corresponding with two bearings room pilot hole respectively to be arranged, and the mechanical seal assembly hole of corresponding setting and bearing chamber pilot hole coaxial line are arranged.
4. a kind of roots-type vapour compression machine according to claim 1, is characterized in that, described seal ring is O type circle.
5. a kind of roots-type vapour compression machine according to claim 1, is characterized in that, the seal ring quantity be arranged between sealing inner sleeve and transmission shaft is two.
6. a kind of roots-type vapour compression machine according to claim 1, is characterized in that, described first overcoat and the second outer cover are respectively equipped with a groove, and described in two, the mounting end of spring is separately fixed in the groove of the first overcoat and the second overcoat.
7. a kind of roots-type vapour compression machine according to claim 1, is characterized in that, described rotating ring soaks damp furan by graphite and makes.
8. a kind of roots-type vapour compression machine according to claim 1, is characterized in that, at the surface spraying Tungsten carbite of described stationary ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420731682.9U CN204283891U (en) | 2014-11-27 | 2014-11-27 | A kind of roots-type vapour compression machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420731682.9U CN204283891U (en) | 2014-11-27 | 2014-11-27 | A kind of roots-type vapour compression machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283891U true CN204283891U (en) | 2015-04-22 |
Family
ID=52867056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420731682.9U Withdrawn - After Issue CN204283891U (en) | 2014-11-27 | 2014-11-27 | A kind of roots-type vapour compression machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405641A (en) * | 2014-11-27 | 2015-03-11 | 山东明天机械有限公司 | Roots type steam compressor |
-
2014
- 2014-11-27 CN CN201420731682.9U patent/CN204283891U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405641A (en) * | 2014-11-27 | 2015-03-11 | 山东明天机械有限公司 | Roots type steam compressor |
| CN104405641B (en) * | 2014-11-27 | 2016-05-18 | 山东明天机械有限公司 | A kind of roots-type vapour compression machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |