CN105299435A - Temperature-control pilot piston-type steam trap valve - Google Patents
Temperature-control pilot piston-type steam trap valve Download PDFInfo
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- CN105299435A CN105299435A CN201510850889.7A CN201510850889A CN105299435A CN 105299435 A CN105299435 A CN 105299435A CN 201510850889 A CN201510850889 A CN 201510850889A CN 105299435 A CN105299435 A CN 105299435A
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Abstract
The invention discloses a temperature-control pilot piston-type steam trap valve. The temperature-control pilot piston-type steam trap valve comprises a water inlet, a valve deck, a valve body, a main valve seat and a water outlet, wherein a piston is arranged in the valve body; the piston is arranged in a piston cylinder sleeve and is connected with a piston rod; a valve block is arranged between the piston rod and the main valve seat; wherein a thermometal component and an air inlet valve seat are arranged between the water inlet and the piston, and the thermometal component is connected with a pilot valve rod, so that one end of the pilot valve rod can cling to the sealing surface of the air inlet valve seat, and the other end of the pilot valve rod can cling to the sealing surface of an exhaust valve seat; and therefore a sealed valve cavity is formed among the valve deck, the air inlet valve seat, the piston and the exhaust valve seat. According to the temperature-control pilot piston-type steam trap valve disclosed by the invention, the thermometal component is connected with the pilot valve rod; the vertical movement of the piston is controlled by utilizing the pilot valve rod, and the opening and closing of the valve block and the main valve seat are further controlled; the performance is stable; safety and reliability are realized; and the size of the trap valve can be reduced, so that the temperature-control pilot piston-type steam trap valve can meet the requirements of large discharge capacity water delivery occasions of different working conditions.
Description
Technical field
The present invention relates to a kind of Automatic steam trap Trap, particularly relate to a kind of temperature control guided piston type steam bleeder.
Background technique
The basic role of drain valve is discharged as early as possible at the water of condensation in vapour system, air and carbon dioxide; Automatically prevent the leakage of steam to greatest extent simultaneously.The kind of Automatic steam trap Trap is a lot, the performance of having nothing in common with each other.Conventional Automatic steam trap Trap mainly contains Lever type Automatic steam trap Trap, free floating-ball type steam draining valve and guide's float ball type steam drain valve, and Lever type Automatic steam trap Trap unstable properties, easily causes the problem of gas leakage; Free floating-ball type steam draining valve is little due to valve seat orifice, causes the problem that water of condensation discharge capacity is little; And pilot-operated type steam trap valve volume is excessive, causes the problem high to installation environment requirement, not easily install.Therefore, be necessary to improve existing Automatic steam trap Trap.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of temperature control guided piston type steam bleeder, and stable performance is safe and reliable, and can reduce the volume of drain valve, meets the huge discharge water delivery occasion of various different operating mode.
The present invention solves the problems of the technologies described above the technological scheme adopted to be to provide a kind of temperature control guided piston type steam bleeder, comprise water intake, valve gap, valve body, main valve seat and water outlet, piston is provided with in described valve body, described piston to be located in piston-cylinder and to be connected with piston rod, valve block is provided with between described piston rod and main valve seat, wherein, bi-metallic element and inlet valve seat is provided with between described water intake and piston, described bi-metallic element is connected with guide's valve rod, one end of described guide's valve rod can fit with the sealing surface of inlet valve seat, the other end can fit with the sealing surface of delivery valve seat, described valve gap, inlet valve seat, closeding valve cavity is formed between piston and delivery valve seat.
Above-mentioned temperature control guided piston type steam bleeder, wherein, described delivery valve seat is connected with water outlet by connecting tube, and the jointing of described delivery valve seat and connecting tube is provided with the first pressure cap, and the jointing of described water outlet and connecting tube is provided with the second pressure cap.
Above-mentioned temperature control guided piston type steam bleeder, wherein, is provided with the first seal ring, is provided with piston seal between described piston and piston-cylinder, be provided with the second seal ring between described piston rod and piston-cylinder between described piston and piston rod.
Above-mentioned temperature control guided piston type steam bleeder, wherein, described piston rod is connected by the 3rd pressure cap with between valve block.
Above-mentioned temperature control guided piston type steam bleeder, wherein, is provided with exhaust port between described guide's valve rod and delivery valve seat.
The present invention contrasts prior art following beneficial effect: temperature control guided piston type steam bleeder provided by the invention, be connected with guide's valve rod by arranging bi-metallic element, guide's valve rod is utilized to control the knee-action of control piston, the opening and closing of further control valve block and main valve seat, stable performance, safe and reliable, and the volume of drain valve can be reduced, meet the huge discharge water delivery occasion of various different operating mode.
Accompanying drawing explanation
Fig. 1 is temperature control guided piston type steam bleeder structural representation of the present invention.
In figure:
1 valve gap 2 inlet valve seat 3 guide valve rod
4 delivery valve seat 5 first pressure cap 6 connecting tubes
7 valve body 8 nut 9 first seal rings
10 piston rod 11 second seal ring 12 second pressure caps
Plug screw 14 first nut 15 main valve seat bottom 13
16 valve blocks 17 the 3rd pressure cap 18 piston-cylinder
19 piston 20 piston seal 21 second nuts
22 bi-metallic element 23 plug screw 24 water intakes
Pipeline in 25 water outlet 26 exhaust port 27 valves
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is temperature control guided piston type steam bleeder structural representation of the present invention.
Refer to Fig. 1, temperature control guided piston type steam bleeder provided by the invention, comprise water intake 24, valve gap 1, valve body 7, main valve seat 15 and water outlet 25, piston 19 is provided with in described valve body 7, described piston 19 to be located in piston-cylinder 18 and to be connected with piston rod 10, valve block 16 is provided with between described piston rod 10 and main valve seat 15, wherein, bi-metallic element 22 and inlet valve seat 2 is provided with between described water intake 24 and piston 19, described bi-metallic element 22 is connected with guide's valve rod 3, one end of described guide's valve rod 3 can fit with the sealing surface of inlet valve seat 2, the other end can fit with the sealing surface of delivery valve seat 4, described valve gap 1, inlet valve seat 2, closeding valve cavity is formed between piston 19 and delivery valve seat 4.
Temperature control guided piston type steam bleeder provided by the invention, described delivery valve seat 4 is connected with water outlet 25 by connecting tube 6, described delivery valve seat 4 is provided with the first pressure cap 5 with the jointing of connecting tube 6, and described water outlet 25 is provided with the second pressure cap 12 with the jointing of connecting tube 6.Fixed by nut 8 between described piston 19 and piston rod 10 and be provided with the first seal ring 9, between described piston 19 and piston-cylinder 18, being provided with piston seal 20, between described piston rod 10 and piston-cylinder 18, being provided with the second seal ring 11.Described valve block is free state, and described piston rod 10 is connected by the 3rd pressure cap 17 with between valve block 16.Exhaust port 26 is provided with between described guide's valve rod 3 and delivery valve seat 4; Bi-metallic element 22 is fixed on water intake 24 place by plug screw 23, and water outlet 25 place is provided with bottom plug screw 13 and the first nut 14; Be fixedly linked by the second nut 21 between piston-cylinder 18 and valve body 7.
Temperature control guided piston type steam bleeder provided by the invention, detailed process is as follows:
1) when drain valve is started working, condensed water enters from water intake, at this moment bi-metallic element 22 does not work, guide's valve rod 3 contacts with the sealing surface of inlet valve seat 2 and is in sealing state, guide's valve rod 3 and delivery valve seat 4 are in open mode, therefore the closeding valve cavity above piston 19 does not have pressure, make valve block 16 and main valve seat 15 be in open mode under the elastic force of piston 19 spring below piston 19 with the piston rod 10 be connected and valve block 16, such condensed water just can easily in valve pipeline 27 discharge from main valve seat 15.
2) when condensed water has soon flowed and lower than bi-metallic element 22, bi-metallic element 22 touches the high-temperature steam immediately following condensed water, at this moment the bimetallic strip expanded by heating that bi-metallic element 22 is built-in, and drive guide's valve rod 3 to move to illustrated right direction, while the sealing surface of first pilot stem 3 and inlet valve seat 2 is opened, guide's valve rod 3 contacts closedown with the sealing surface of delivery valve seat 4, steam enters the uuper valve chamber of piston 19 from inlet valve seat 2, because the cross-section area of piston 19 is much larger than the cross-section area of pipeline in valve 27, therefore piston 19 moves down under the vapor pressure effect more much bigger than spring force, and drive piston rod 10 and valve block 16 to move down simultaneously, until the sealing surface of valve block 16 touches the sealing surface of main valve seat 15, drain valve is closed.
3) when condensed water enters in drain valve again, bi-metallic element 22 touches condensed water, because condensate temperature is lower than steam, at this moment the bimetallic strip that bi-metallic element 22 is built-in shrinks, and drive guide's valve rod 3 to move to illustrated left direction, while first pilot stem 3 contacts sealing with the sealing surface of inlet valve seat 2, the sealing surface of guide's valve rod 3 and delivery valve seat 4 is opened, steam in piston 19 uuper valve chamber is discharged to drain valve outlet by the exhaust port on the right side of guide's valve rod 3 through connecting tube 6, at this moment piston 19 uuper valve chamber internal pressure is reduced to and does not have pressure, piston 19 drives piston rod 10 and valve block 16 to move up under the elastic force of spring, make the sealing surface of valve block 16 away from the sealing surface of main valve seat 15, open drain valve, at this moment condensed water again can easily in valve pipeline 27 discharge from main valve seat 15.Then drain valve constantly repeats above action.
Drain valve of the present invention is connected with guide's valve rod by arranging bi-metallic element, guide's valve rod is utilized to control the knee-action of control piston, the opening and closing of further control valve block and main valve seat, stable performance, safe and reliable, need not built-in filter screen, but drain valve forward filtering net can be adopted, so not only can reduce the volume of drain valve, filter screen can also be unpicked and washed eaily.Valve seat orifice due to main valve seat 15 of the present invention can be worked into the size of tens millimeters, therefore a few to tens of times larger than existing drain valve valve seat orifice several millimeters even size of tens millimeters, so the discharge capacity of this temperature control guided piston type steam bleeder is large especially.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little amendment and perfect, therefore protection scope of the present invention is when being as the criterion of defining with claims.
Claims (5)
1. a temperature control guided piston type steam bleeder, comprise water intake (24), valve gap (1), valve body (7), main valve seat (15) and water outlet (25), piston (19) is provided with in described valve body (7), described piston (19) to be located in piston-cylinder (18) and to be connected with piston rod (10), valve block (16) is provided with between described piston rod (10) and main valve seat (15), it is characterized in that, bi-metallic element (22) and inlet valve seat (2) is provided with between described water intake (24) and piston (19), described bi-metallic element (22) is connected with guide's valve rod (3), one end of described guide's valve rod (3) can fit with the sealing surface of inlet valve seat (2), the other end can fit with the sealing surface of delivery valve seat (4), described valve gap (1), inlet valve seat (2), closeding valve cavity is formed between piston (19) and delivery valve seat (4).
2. temperature control guided piston type steam bleeder as claimed in claim 1, it is characterized in that, described delivery valve seat (4) is connected with water outlet (25) by connecting tube (6), described delivery valve seat (4) is provided with the first pressure cap (5) with the jointing of connecting tube (6), and described water outlet (25) is provided with the second pressure cap (12) with the jointing of connecting tube (6).
3. temperature control guided piston type steam bleeder as claimed in claim 1, it is characterized in that, the first seal ring (9) is provided with between described piston (19) and piston rod (10), be provided with piston seal (20) between described piston (19) and piston-cylinder (18), between described piston rod (10) and piston-cylinder (18), be provided with the second seal ring (11).
4. temperature control guided piston type steam bleeder as claimed in claim 1, is characterized in that, is connected between described piston rod (10) with valve block (16) by the 3rd pressure cap (17).
5. temperature control guided piston type steam bleeder as claimed in claim 1, is characterized in that, be provided with exhaust port (26) between described guide's valve rod (3) and delivery valve seat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850889.7A CN105299435B (en) | 2015-11-30 | 2015-11-30 | A kind of temperature control guided piston type steam bleeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850889.7A CN105299435B (en) | 2015-11-30 | 2015-11-30 | A kind of temperature control guided piston type steam bleeder |
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| Publication Number | Publication Date |
|---|---|
| CN105299435A true CN105299435A (en) | 2016-02-03 |
| CN105299435B CN105299435B (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510850889.7A Active CN105299435B (en) | 2015-11-30 | 2015-11-30 | A kind of temperature control guided piston type steam bleeder |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5542080Y2 (en) * | 1973-01-26 | 1980-10-02 | ||
| JPH06241393A (en) * | 1993-02-15 | 1994-08-30 | Tlv Co Ltd | Orifice type steam trap |
| JPH1089595A (en) * | 1996-09-13 | 1998-04-10 | Tlv Co Ltd | Pilot type steam trap |
| CN201193772Y (en) * | 2008-04-09 | 2009-02-11 | 洪有福 | Dual-metal-sheet steam drain valve |
| CN101520126A (en) * | 2008-09-10 | 2009-09-02 | 兰州理工大学 | Adjustable pilot-operated type steam trap valve |
| CN102287611A (en) * | 2011-08-01 | 2011-12-21 | 洪新强 | Floater-guided steam trap |
| CN202228911U (en) * | 2011-08-01 | 2012-05-23 | 洪新伟 | Temperature-adjusting pilot-operated steam trap with bimetallic strip |
| CN205173966U (en) * | 2015-11-30 | 2016-04-20 | 上海奉洪阀门有限公司 | Control by temperature change guide piston steam trap |
-
2015
- 2015-11-30 CN CN201510850889.7A patent/CN105299435B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5542080Y2 (en) * | 1973-01-26 | 1980-10-02 | ||
| JPH06241393A (en) * | 1993-02-15 | 1994-08-30 | Tlv Co Ltd | Orifice type steam trap |
| JPH1089595A (en) * | 1996-09-13 | 1998-04-10 | Tlv Co Ltd | Pilot type steam trap |
| CN201193772Y (en) * | 2008-04-09 | 2009-02-11 | 洪有福 | Dual-metal-sheet steam drain valve |
| CN101520126A (en) * | 2008-09-10 | 2009-09-02 | 兰州理工大学 | Adjustable pilot-operated type steam trap valve |
| CN102287611A (en) * | 2011-08-01 | 2011-12-21 | 洪新强 | Floater-guided steam trap |
| CN202228911U (en) * | 2011-08-01 | 2012-05-23 | 洪新伟 | Temperature-adjusting pilot-operated steam trap with bimetallic strip |
| CN205173966U (en) * | 2015-11-30 | 2016-04-20 | 上海奉洪阀门有限公司 | Control by temperature change guide piston steam trap |
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| Publication number | Publication date |
|---|---|
| CN105299435B (en) | 2018-02-23 |
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Address after: 201400 No. 3, Industrial Road, Chaichang, Fengxian District, Shanghai Patentee after: SHANGHAI FENGHONG VALVE Co.,Ltd. Address before: 201400 room 2582, complex building 2, 1478 Nanfeng Road, Fengcheng Town, Fengxian District, Shanghai Patentee before: SHANGHAI FENGHONG VALVE Co.,Ltd. |