CN103644654A - Pressure-sensitive overflow protection device for water boiler - Google Patents
Pressure-sensitive overflow protection device for water boiler Download PDFInfo
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- CN103644654A CN103644654A CN201310724748.1A CN201310724748A CN103644654A CN 103644654 A CN103644654 A CN 103644654A CN 201310724748 A CN201310724748 A CN 201310724748A CN 103644654 A CN103644654 A CN 103644654A
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- valve casing
- water
- dish
- pressure
- boiler
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Abstract
A pressure-sensitive overflow protection device for a water boiler comprises a rubber template component mounted between an upper disc-shaped valve casing and a lower disc-shaped valve casing, wherein a closed space formed between the lower disc-shaped valve casing and the template component is communicated with a water storage chamber of the water boiler through a pipe saddle; a space formed between the upper disc-shaped valve casing and a rubber template is communicated with the atmosphere; a guiding ejector rod is arranged between the rubber template and the upper disc-shaped valve casing. The pressure-sensitive overflow protection device further comprises a microswitch controlled by the guiding ejector rod. According to the invention, the relationship between the pressure intensity in a liquid and the depth is utilized to convert the pressure intensity reflecting the water level in a container into the displacement in direct proportion to the pressure intensity through the template and a spring, and the displacement is utilized to drive a valve plug to open or close the valve port so as to realize limited water inflow. The pressure-sensitive overflow protection device is mainly designed for overflow protection of the water storage chamber of the water boiler, is unlike an internal tongue tube and an external tongue tube which are mounted on the side surface of a boiler furnace, or an electrode which is adopted by the water resistance principle and needs logic circuit support, has the advantages of simple structure, stable property, strong suitability and low cost and is suitable for the water tanks of various electrothermal water boilers.
Description
Technical field
The present invention relates to the pressure-sensitive full water protective device of a kind of boiler, for boiler or water tank water intake and water level control.
Background technology
It is puzzlement electric water boiler research staff's key problem that automatic electric water boiler water inlet is controlled with excessive low water level protection with water level always; Ball float in one's early years---lever water intaking valve often leaks on the one hand, causes boiler often to produce water, unfavorable to drink person's health; Ball float---lever water intaking valve, in boiler inner water tank installing space and specific setting height(from bottom) requirement that need to be larger, have seriously limited electric water boiler moulding and structural design, has also increased the cost of boiler in addition.
What occur after a while utilizes water resistance principle, electrode detector water level, and the magnetic valve water intake mode that logic circuit is controlled, needs electronic circuit support, uses electronic circuit to produce may greatly increasing of fault in the environment of high temperature, high humidity, and fault rate increases substantially; Because producing incrustation scale on electrode, often affect water-level detecting function, and cleaning electrode needs the installation site of an opening for maintenance operation, thereby bring many troubles to structural design; Also need to pay higher cost.
The ball float water intaking valve using on early stage railway passenger electric heating water boiler for vehicle, employing be ball float straight top type water intaking valve, because source pressure only has 45Kp, can not be applicable to municipal water supply pressure and can not promote.
Most of electric water boilers all need there is excessive low water level protection function, consider many-sided reasons such as cost, structure, should when solving water inlet problem, solve; Adopting ball float---the boiler of lever water inlet has directly been abandoned excessive low water level protection function; The electrode that the boiler that adopts water resistance principle to control magnetic valve water inlet is used and logic circuit detecting water level are also controlled the control model of heating, but because more difficult adaptation hot and humid environment, poor reliability, maintenance rate are high, very not welcome.
Summary of the invention
The object of the invention is to provide the pressure-sensitive full water protective device of a kind of boiler, to overcome the above-mentioned deficiency of prior art.
A pressure-sensitive full water protective device for boiler, is characterized in that comprising the rubber form assembly being arranged between the upper valve casing of dish and the lower valve casing of dish,
Described template assembly comprises rubber form, a pair of clamping plate and guiding push rod, this rubber form is disc-shaped structure, and in submarginal position, be provided with arcuation annular fold, and this fold raises up, discoidal clamping plate are clipped in the upper and lower both sides of rubber form, the diameter of described clamping plate is less than the diameter of described annular fold, and described rubber form and clamping plate thereof are installed on the bottom of guiding push rod;
The confined space forming between the lower valve casing of dish and template assembly communicates with boiler water storage cavity by base, and the space forming between valve casing and rubber form on dish is connected with atmosphere;
On guiding push rod on rubber form and dish between valve casing, be set with balancing spring and spring bearer plate; Be nested with the adjusting screw mandrel on guiding push rod top by above screw on dish in valve casing and withstand on spring bearer plate, set up after water level with hold-down nut by adjustings screw mandrel and dish above valve casing be locked as one;
Device also comprises the microswitch of being controlled by above-mentioned guiding push rod.
Described microswitch component comprises microswitch, installing rack, tightens screw and tightening nut; Installing rack is with the lock screw of disjunctor with it, microswitch by installing rack, lock screw, tightening nut be fastened on dish on valve casing be locked as on the adjusting rod of one, and the guiding push rod on template assembly contacts with the reed of switch;
Switch motion point moves while being set in predetermined excessive low water level protection water level; The normal battle of limit switch is as excessive low water level protection contact.
Described template assembly also comprises clamping fixing body and mounting nuts, and for template and clamping plate are tightened to one, and clamping fixing body is connected with above-mentioned guiding push rod on its axis direction.
Centered by described clamping plate, with the disc-shaped structure body of pilot hole, between the centerand edge of clamping plate, there is the loop configuration towards a side projection.Be used for the stressed guiding push rod that is applied to of rubber form.
The described pressure-sensitive full water protective device for boiler turns over the application of the full water protection of ability of swimming electric water boiler water storage cavity in boiling.
Know-why of the present invention is as follows: the pressure of liquid internal is directly proportional to the degree of depth; If pressure, the another side of a load bearing fluid inside being installed at the certain depth of liquid communicate with atmosphere, the template of particular area, the pressure of water level in reflection container is transformed into the displacement being directly proportional to this pressure by template and a spring, utilize this displacement drive valve plug to open or close port, can realize spacing water inlet and intake control and functional part can be transferred to the ideal space of product again; Also excessive low water level protection function is effectively completed simultaneously; To realize freely designing of boiler structure and moulding.
The present invention has outstanding feature than existing various water intaking valves:
The present invention utilizes the pressure of liquid internal and the relation of the degree of depth; The pressure of water level in reflection container is transformed into the displacement being directly proportional to this pressure by template and a spring, utilizes this displacement drive valve plug to open or close port, realize spacing water inlet.
The present invention turns over water boiler water storage cavity full water protection design mainly for boiling, unlike built-in tongue tube and external tongue tube, is arranged on flue side (installation site is limited), and the electrode also adopting unlike water power group principle needs logic circuit support.
The present invention is simple in structure, stable performance, strong adaptability, cost are low, can be adapted to the full water protective device of various electric water boiler water tanks.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention,
Wherein, Fig. 1 a is profile of the present invention, and Fig. 1 b is profile schematic diagram.
Fig. 2 is the schematic diagram of template assembly of the present invention,
Wherein, Fig. 2 a is cutaway view, and Fig. 2 b is profile schematic diagram.
Fig. 3 is rubber form schematic diagram of the present invention,
Wherein, Fig. 3 a is cutaway view, and Fig. 3 b is profile schematic diagram.
Fig. 4 is microswitch component structural representation of the present invention.
Wherein, Fig. 4 a is cutaway view, and Fig. 4 b is profile schematic diagram.
Fig. 5 is hydraulic pressure of the present invention--the structural representation of displacement converter device.
Wherein, Fig. 1 a is profile of the present invention, and Fig. 1 b is profile schematic diagram.
Wherein: 1, valve casing on dish, 2, the lower valve casing of dish, 3, balancing spring, 4, spring bearer plate, 5, regulate screw mandrel, 6, hold-down nut, A, template assembly, A1, template, A11, arcuation annulus fold, A12, pilot hole, A13, installing hole, A2, clamping plate, A3, clamping screw, A4, clamping fixing body, A5, guiding push rod; B, microswitch component, B1, microswitch, B2, installing rack, B3, tighten screw, B4, tightening nut, P, base.
The specific embodiment
As Figure 1-4, the present invention includes one by template A1, clamping plate A2, mounting nuts A3, the template assembly A that clamps fixing body A4 and guiding push rod A5, form, with valve casing 2 under valve casing on dish 1, butterfly, and by microswitch B1, installing rack B2, tighten microswitch component B and balancing spring 3, spring bearer plate 4 that screw B3, tightening nut B4 form, regulate screw mandrel 5, hold-down nut 6, base P;
Template assembly A by with arc-shaped transition annular fold A11, edge, have several installing hole A13, centers that are uniformly distributed along the circumference to have the rubber form A1 of pilot hole A12 and be clipped in the formwork splint A2 of rubber form A1 both sides and center be equipped with guiding push rod A5, can by template A1 and the fastening all-in-one-piece of clamping plate A2 clamps fixing body A4 and mounting nuts A3 forms; Template assembly A is arranged under the upper valve casing 1 of dish and butterfly between valve casing 2, and balancing spring 3 and spring bearer plate 4 are housed on the assembling axis on template assembly A and dish between valve casing 1; Its periphery has just formed by the fastened by screw of right quantity the switching mechanism that template axial displacement is directly proportional to pressure.
Described adjusting screw mandrel 5 is screwed in, is withstood on spring bearer plate 4 by center, upper valve casing upper end, after setting full water water level, with hold-down nut 6, adjusting screw mandrel 5 and upper valve casing 1 is locked as to one.
Described microswitch component B, by microswitch B1, installing rack B2, tighten screw B3 and tightening nut B4 forms; Microswitch B1 by installing rack B2 and with it the lock screw B3 of disjunctor by tightening nut B4, be fastened on upper valve casing and be locked as on the spring adjusting rod 5 of one, the guiding push rod A5 on template assembly A withstands on the reed of microswitch; Adjust up and down when microswitch component B position is set in predetermined full water protection water level by microswitch B1 operating point and move; Protect contact as full water the normal battle of microswitch B1.
Embodiment 1
Be the structure chart for the pressure-sensitive full water protective device of boiler of the present invention as shown in Figure 1, be mainly used in boiling and turn over the protection of ability of swimming electric water boiler water storage cavity full water.
At the lower end of Fig. 1 base P, connecing a water pipe turns over ability of swimming electric water boiler water storage cavity with boiling and communicates; by regulating screw mandrel 5 and spring bearer plate 4, adjust balancing spring 3 precompressed amounts; and adjust the operating point for the microswitch B1 of full water protection, just can meet boiling and turn over ability of swimming electric water boiler water storage cavity full water protection requirement.
Embodiment 2
On the basis of Fig. 1, remove as shown in Figure 5 the remainder after microswitch, just can be used as hydraulic pressure--displacement converter device; This is one of core of the present invention.This hydraulic pressure--the displacement converter device various microswitches of not only can arranging in pairs or groups are realized the function of the pressure-sensitive full water of boiler protection; also can be applied to other and relate to water pressure and control technology field thereof---obviously by converting hydraulic pressure to displacement; can realize various dissimilar control, therefore have a wide range of applications.
Its concrete structure is as follows:
Hydraulic pressure a--displacement converter device, is characterized in that comprising the template assembly A being arranged between the upper valve casing 1 of dish and the lower valve casing 2 of dish,
Described rubber form assembly A comprises rubber form A1, a pair of clamping plate A2 and guiding push rod A5, this rubber form A1 is disc-shaped structure, and in submarginal position, be provided with arcuation annular fold A11, and this fold A11 raises up, discoidal clamping plate A2 is clipped in the upper and lower both sides of rubber form A1, the diameter of described clamping plate A2 is less than the diameter of described annular fold A11, and described rubber form A1 and clamping plate A2 thereof are installed on the bottom of guiding push rod A5;
The confined space forming between the lower valve casing 2 of dish and template assembly A communicates with boiler water storage cavity by base P, and on dish, between valve casing 1 and rubber form 2, the space of formation is connected with atmosphere;
On guiding push rod A5 on rubber form A1 and dish between valve casing 1, be set with balancing spring 3 and spring bearer plate 4; Be nested with the adjusting screw mandrel 5 on guiding push rod A5 top by above screw on dish valve casing 1 in and withstand on spring bearer plate 4, with hold-down nut 6, adjustings screw mandrel 5 and dish-shaped above valve casing 1 are locked as to one after setting up water level.
Naturally, other parts that do not relate to microswitch of the pressure-sensitive full water protective device of above-mentioned boiler also can be used as this hydraulic pressure--the structure of displacement converter device.
Claims (3)
1. the pressure-sensitive full water protective device of boiler, is characterized in that comprising the template assembly (A) being arranged between the upper valve casing (1) of dish and the lower valve casing (2) of dish,
Described rubber form assembly (A) comprises rubber form (A1), a pair of clamping plate (A2) and guiding push rod (A5), this rubber form (A1) is disc-shaped structure, and in submarginal position, be provided with arcuation annular fold (A11), and this fold (A11) raises up, discoidal clamping plate (A2) are clipped in the upper and lower both sides of rubber form (A1), the diameter of described clamping plate (A2) is less than the diameter of described annular fold (A11), and described rubber form (A1) and clamping plate (A2) thereof are installed on the bottom of guiding push rod (A5);
The confined space forming between the lower valve casing (2) of dish and template assembly (A) communicates with boiler water storage cavity by base (P), and between valve casing on dish (1) and rubber form (2), the space of formation is connected with atmosphere;
On the guiding push rod (A5) between rubber form (A1) and the upper valve casing (1) of dish, be set with balancing spring (3) and spring bearer plate (4); The adjusting screw mandrel (5) being nested with on push rod (A5) top of leading is screwed in the upper valve casing (1) of dish and withstands on spring bearer plate (4) above by top, after setting water level, with hold-down nut (6), will regulate the upper valve casing (1) of screw mandrel (5) and dish to be locked as one.
Device also comprises the microswitch (B) of being controlled by above-mentioned guiding push rod (A5).
2. the pressure-sensitive full water protective device for boiler as claimed in claim 1, is characterized in that described microswitch component (B) comprises microswitch (B1), installing rack (B2), tightens screw (3) and tightening nut (B4); Installing rack (B2) is with the lock screw of disjunctor (4) with it, microswitch (B1 by installing rack (B2), lock screw (4), tightening nut (B4) be fastened on dish on valve casing (1) be locked as on the adjusting rod 5 of one, and the guiding push rod (A5) on template assembly (A) contacts with the reed of switch (B1);
Switch (B1) operating point moves while being set in predetermined excessive low water level protection water level; The normal battle of limit switch (41) is as excessive low water level protection contact.
3. the pressure-sensitive full water protective device for boiler as claimed in claim 1; it is characterized in that described template assembly (A) also comprises clamping fixing body (A4) and mounting nuts (A3); for template (A1) and clamping plate (A2) are tightened to one, and clamping fixing body (A4) is connected with above-mentioned guiding push rod (25) on its axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724748.1A CN103644654A (en) | 2013-12-24 | 2013-12-24 | Pressure-sensitive overflow protection device for water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724748.1A CN103644654A (en) | 2013-12-24 | 2013-12-24 | Pressure-sensitive overflow protection device for water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103644654A true CN103644654A (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310724748.1A Pending CN103644654A (en) | 2013-12-24 | 2013-12-24 | Pressure-sensitive overflow protection device for water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103644654A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482560A (en) * | 2021-09-08 | 2021-10-08 | 西南石油大学 | Novel double-valve type continuous circulating valve with clamping device |
-
2013
- 2013-12-24 CN CN201310724748.1A patent/CN103644654A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482560A (en) * | 2021-09-08 | 2021-10-08 | 西南石油大学 | Novel double-valve type continuous circulating valve with clamping device |
| CN113482560B (en) * | 2021-09-08 | 2021-12-14 | 西南石油大学 | Novel double-valve type continuous circulating valve with clamping device |
| US11530753B1 (en) | 2021-09-08 | 2022-12-20 | Southwest Petroleum University | Double-valve continuous circulating valve with a clamping device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140319 |