CN204267819U - The quantitative differential pressure control valve of self-powering type - Google Patents
The quantitative differential pressure control valve of self-powering type Download PDFInfo
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- CN204267819U CN204267819U CN201420669595.5U CN201420669595U CN204267819U CN 204267819 U CN204267819 U CN 204267819U CN 201420669595 U CN201420669595 U CN 201420669595U CN 204267819 U CN204267819 U CN 204267819U
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- 238000010438 heat treatment Methods 0.000 abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000001105 regulatory effect Effects 0.000 abstract description 7
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- 230000009471 action Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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Abstract
The utility model proposes the quantitative differential pressure control valve of a kind of self-powering type, comprise that inside is divided into the valve body of upper and lower cavity, the bonnet be arranged on valve body, bottom flange, the PRESSURE PIPE be arranged on bonnet, the automatic pressure reduction control gear be arranged on valve body, the pressure differential resetting device be arranged on bonnet; Valve body lower chamber inside is provided with Manual quantitative device, and Manual quantitative device comprises quantitative valve rod, the second valve plug, the first valve plug, valve plug sealing gasket, quantitative sealed cover; Automatic pressure reduction control gear comprises pressure sensitive film, upper film pad, automatically valve rod, lower film pad, spring, automatically valve pocket, automatically valve plug; Formation control cavity between pressure sensitive film and bonnet.The utility model utilizes automatic pressure reduction control gear pressure reduction regulating action and Manual quantitative device resistance regulating action two kinds of modes constant pressure difference that combines to control flow, heating system water conservancy imbalance can be solved, eliminate outer net pressure surge on the impact of controlled loop, reduce unnecessary flow waste.
Description
Technical field
The utility model belongs to equilibrium valve technical field, relates to a kind of dynamic balance valve, particularly under the prerequisite of setting peak rate of flow, supports that controlled loop is from main regulation, is suitable for the quantitative differential pressure control valve of a kind of self-powering type of heat death theory.
Background technique
The effect of heating system is that the heat provided by thermal source with lower energy consumption flows to heat user on request.Whether the layout of heating system rationally directly has influence on the hydraulic regime of heating system, and then affects the heating effect of end, and therefore the hydraulic equilibrium of heating system is the guarantee obtaining good heating effect.For set heating system external channeling, its actual operating mode often greatly differs from each other with design conditions, often produces the phenomenon of hydraulic misadjustment, and as the carrier of heat, the hydraulic misadjustment of heating agent certainly will cause thermal misadjustment.In central heating system, because heat range of heat is larger, often occur that near-end user (as a heat changes station, community, a building etc.) is excessive and remote subscriber is too small for backwater pressure reduction for backwater pressure reduction, being reflected in hydraulic regime imbalance is exactly near-end user flow excessive (overheated) and remote subscriber underfed (temperature is low).
Occur that the reason of above-mentioned phenomenon is that existing differential pressure control valve is not all to the restriction of peak rate of flow, and change flow separately through the pressure reduction adjustment of differential pressure control valve, be difficult to reach desirable flow control requirement when the resistance of controlled loop is little and required flow is little, if adjust controlled loop resistance change flow by increasing a common manual equilibrium valve, adjust to get up to there is certain difficulty for variable flow system, and considerably increase instrument tune net intensity and primary construction investment.
Model utility content
The utility model proposes the quantitative differential pressure control valve of a kind of self-powering type, be applicable to flow setting type and change flowrate at the end system, solve heating system water conservancy imbalance, reduce outer net pressure surge on the impact of controlled loop, reduce unnecessary flow waste, reduce initial investment and operation cost, make tune network process become very simple.
The technical solution of the utility model is such:
The quantitative differential pressure control valve of a kind of self-powering type, comprising:
Inside is divided into the valve body of upper and lower cavity, is arranged on the bonnet on described valve body top, is arranged on the bottom flange of described valve body lower portion, the PRESSURE PIPE be arranged on described bonnet, the automatic pressure reduction control gear be arranged on described valve body, the pressure differential resetting device be arranged on described bonnet.
Described valve body lower chamber inside is provided with Manual quantitative device, and described Manual quantitative device comprises and is arranged on described bottom flange and the quantitative valve rod coaxial with described valve body, the second valve plug being arranged on described quantitative valve rod upper end, the first valve plug be arranged on described second valve plug, is arranged on valve plug sealing gasket between described first valve plug and described second valve plug, is arranged on quantitative sealed cover between described quantitative valve rod and described bottom flange.
As further technological scheme, described automatic pressure reduction control gear comprises and is arranged on the pressure sensitive film be connected between described valve body with described bonnet and with described pressure differential resetting device, the upper film pad be arranged on described pressure sensitive film, upper end through described upper film pad and the automatic valve rod of described pressure sensitive film, the lower film pad be successively set on described automatic valve rod, spring, automatically valve pocket, automatically valve plug.Formation control cavity between described pressure sensitive film and described bonnet, described automatic valve pocket to be slidably connected with described automatic valve plug on described valve body by described spring compression.
As further technological scheme, described pressure differential resetting device comprises the pressure regulation valve rod be arranged on described bonnet, the adjusting pressuring knob be arranged on described pressure regulation valve rod, be arranged on pressure regulation stuffing box gland between described pressure regulation valve rod and described pressure sensitive film.
As further technological scheme, between described pressure regulation valve rod and described adjusting pressuring knob, described quantitative valve rod and described quantitative sealed overlap between, described quantitative sealed overlaps and be provided with O type circle between described bottom flange.
As further technological scheme, described second valve plug is provided with linear grooves, described valve body is provided with the projection corresponding with described linear grooves.
As further technological scheme, described pressure regulation valve rod is provided with flow quantity locking apparatus.
The utility model principle and beneficial effect are:
Differential pressure control valve installs additional a Manual quantitative device, utilize differential pressure control valve pressure reduction regulating action and Manual quantitative device resistance regulating action two kinds of modes combine constant pressure difference control flow.When user is without variable-flow demand, can constant flow rate, when user has a variable-flow demand, can manually regulate resistance recycling pressure reduction control gear from the flow of main control loop by proportioning device.Heating system water conservancy operating mode balance and energy-conserving action can be played after pressure differential resetting and flow set, thus solve heating system water conservancy imbalance, eliminate adjustment between each control loop and outer net pressure surge on the impact of controlled loop, also weaken simultaneously controlled loop inside adjustment interference effect, reduce unnecessary flow waste, cut operating costs.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
Fig. 2 is automatic pressure reduction control gear structural representation in the utility model;
Fig. 3 is Manual quantitative apparatus structure schematic diagram in the utility model;
Fig. 4 is the second valve plug sectional structure schematic diagram in the utility model;
Fig. 5 is that in the utility model, the second valve plug looks up structural representation;
Fig. 6 is the utility model scheme of installation;
Fig. 7 is utility model works principle decomposing schematic representation;
Fig. 8 is heating system water lift of pump flow profile before and after the utility model is installed.
In figure: 1-valve body, 2-bonnet, 3-bottom flange, 4-PRESSURE PIPE, the automatic pressure reduction control gear of 5-, 51-pressure sensitive film, the upper film pad of 52-, the automatic valve rod of 53-, film pad under 54-, 55-spring, the automatic valve pocket of 56-, the automatic valve plug of 57-, 6-pressure differential resetting device, 61-pressure regulation valve rod, 62-adjusting pressuring knob, 63-pressure regulation stuffing box gland, 7-Manual quantitative device, the quantitative valve rod of 71-, 72-second valve plug, 721-linear grooves, 73-first valve plug, 74-valve plug sealing gasket, 75-quantitative sealed cover, 8-flow quantity locking apparatus.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Fig. 1 ~ Fig. 5, the quantitative differential pressure control valve of a kind of self-powering type that the utility model proposes, comprising:
Inside is divided into the valve body 1 of upper and lower cavity, is arranged on the bonnet 2 on valve body 1 top, is arranged on the bottom flange 3 of valve body 1 bottom, the PRESSURE PIPE 4 be arranged on bonnet 2, the automatic pressure reduction control gear 5 be arranged on valve body 1, the pressure differential resetting device 6 be arranged on bonnet 2.Valve body 1 is divided into upper cavity and lower chamber by its intermediate throughholes.
Valve body 1 lower chamber inside is provided with Manual quantitative device 7, Manual quantitative device 7 comprise be arranged on bottom flange 3 and the quantitative valve rod 71 coaxial with valve body 1, the second valve plug 72 being arranged on quantitative valve rod 71 upper end, the first valve plug 73 be arranged on the second valve plug 72, be arranged on the valve plug sealing gasket 74 between the first valve plug 73 and the second valve plug 72, the quantitative sealed be arranged between quantitative valve rod 71 and bottom flange 3 overlaps 75.
Quantitative valve rod 71 upper end is provided with screw thread, and what arrange with the second valve plug 72 inside is threaded, and the first valve plug 73 is also provided with screw thread, and the screw thread arranged with the second valve plug 72 inside is fixedly connected with.By rotating quantitative valve rod 71, screw thread drives the second valve plug 72 above-below direction to move, thus changes the distance of the first valve plug 73 and valve body 1 intermediate throughholes, thus changes valve opening size, also just changes the uninterrupted by valve.The effect of whole Manual quantitative device 7 is equivalent to a manual equilibrium valve, is used for adjusting controlled loop resistance to change flow.
Automatic pressure reduction control gear 5 comprises and is arranged on the pressure sensitive film 51 be connected between valve body 1 with bonnet 2 and with described pressure differential resetting device 6, the upper film pad 52 be arranged on pressure sensitive film 51, upper end through upper film pad 52 and the automatic valve rod 53 of pressure sensitive film 51, the lower film pad 54 be successively set on automatic valve rod 53, spring 55, automatically valve pocket 56, automatically valve plug 57.Formation control cavity between pressure sensitive film 51 and bonnet 2, automatic valve pocket 56 to be pressed on valve body 1 by spring 11 and to be slidably connected with automatic valve plug 57.
Automatic pressure reduction control gear 5 is connected with valve body 1 with automatic valve pocket 56 by pressure sensitive film 51, automatic valve pocket 56 is arranged on automatic valve plug 57 periphery and closely cooperates, in valve body 1 upper cavity with control cavity, liquid is under the differential pressure action of described pressure sensitive film 51, change the tension force of pressure sensitive film 51, thus drive automatic valve plug 57 to move up and down in automatic valve pocket 56 inside, thus change the distance of automatic valve plug 57 and valve body 1 intermediate throughholes, thus change valve opening size, also the uninterrupted by valve is just changed, thus realize utilizing for backwater pressure reduction change flow automatic regulation.
Pressure differential resetting device 6 comprises the pressure regulation valve rod 61 be arranged on bonnet 2, the adjusting pressuring knob 62 be arranged on pressure regulation valve rod 61, is arranged on pressure regulation stuffing box gland 63 between pressure regulation valve rod 61 and pressure sensitive film 51.Pressure sensitive film 51 is connected with pressure regulation valve rod 61, by adjustment pressure regulation valve rod 61 and then the tension force adjusting pressure sensitive film 51, within the scope of certain flow, when water supply pressure increases, pressure suffered by pressure sensitive film 51 top increases, thus drive automatic valve plug 57 to move down, and then reduce the distance of automatic valve plug 57 and valve body 1 intermediate throughholes, thus increase backwater pressure, otherwise, then reduce backwater pressure, the confession backwater pressure reduction that just be ensure that within the scope of certain flow by above process is invariable.
Between pressure regulation valve rod 61 and adjusting pressuring knob 62, between quantitatively valve rod 71 and quantitative sealed overlap 75, quantitative sealed overlaps between 75 and bottom flange 3 and is provided with O type circle, the effect of O type circle is sealing, thus prevents liquid in bonnet 2 and pressure differential resetting device 6, clearance leakage between bottom flange 3 and Manual quantitative device 7.
Second valve plug 72 is provided with linear grooves 721, valve body 1 is provided with the projection corresponding with linear grooves 721, protruding restriction the second valve plug 72 can only move along linear grooves 721 in the vertical direction.
Pressure regulation valve rod 61 is provided with flow quantity locking apparatus 8, after manually setting required flow, flow is locked.
As shown in Figure 6, the quantitative differential pressure control valve of self-powering type when mounted, system return is installed on according to customer flow demand, flow direction valve must be kept consistent with pipeline flow-direction, otherwise do not have the due regulating action of valve, and weld 1/2 pipe joint in water pipe appropriate location, thus PRESSURE PIPE 4 is connected with water pipe.
Installed the branch road of the quantitative differential pressure control valve of self-powering type, the adjusting pressuring knob 62 by pressure differential resetting device 6 sets the pressure reduction of Valve controlling loop, rotates counterclockwise adjusting pressuring knob 62 pressure reduction and increases, otherwise, rotate clockwise adjusting pressuring knob 62 pressure reduction and reduce.Can according to the reasonable value of flow set needed for controlled branch road, can the safety pressure margin of consumption systems near-end, therefore support controlled user from main regulation.
The branch road of the quantitative differential pressure control valve of self-powering type is installed, has also set the flow of the controlled loop of valve by the quantitative valve rod 71 of Manual quantitative device 7, rotated counterclockwise quantitative valve rod 71 flow and increase, otherwise, rotate clockwise quantitative valve rod 71 flow and reduce.A reasonable value can be set according to flow needed for controlled branch road, thus solve the flow balance issue of heating system pipe network.After flow set, valve private key can be inserted flow quantity locking apparatus 8 rotate clockwise just by locking valve.
Further illustrate working principle and the application value of the quantitative differential pressure control valve of self-powering type below.
As shown in Figure 7,
P1 is water supply pressure, is control chamber pressure;
P2 is valve fore pressure, is valve body 1 lower chamber pressure;
P3 is backwater pressure, is valve body 1 upper cavity pressure;
△ P=P1-P2, for controlling pressure reduction, being and controlling cavity to valve body 1 lower chamber pressure reduction;
△ P'=P2-P3 is operating pressure differential, is valve body 1 lower chamber to valve body 1 upper cavity pressure reduction.
Operating pressure differential △ P is made up of the pressure reduction two-part acted on user and Manual quantitative device 7, needs manually proportioning device 7 be the peak rate of flow of user's request by flow set, by the change of operating pressure differential △ P' and then ensure that and control the constant of pressure reduction △ P.
When user is without variable-flow demand, resistance consumes substantially on Manual quantitative device 7, solves each branch road water conservancy imbalance, play the effect of constant flow rate by Manual quantitative device 7 and automatic pressure reduction control gear 5.
When user has a variable-flow demand, the resistance acted on Manual quantitative device 7 sharply reduces pressure reduction and reduces thereupon, and resistance consumes substantially user, and pressure reduction also acts on user, and the flow of control loop is determined by user.
As shown in Figure 8, operation point a is the heating system runnability before the quantitative differential pressure control valve of self-powering type is installed, and △ Ha is pump head now, and Qa is pump capacity now; Operation point b is heating system runnability when manual proportioning device 7 works after the quantitative differential pressure control valve of self-powering type is installed, and △ Hb is pump variable frequency lift after valve regulated, and Qb is pump variable frequency flow after valve regulated; Heating system runnability when operation point c is user's active variable-flow after the quantitative differential pressure control valve of self-powering type is installed, △ Hc is rear pump variable frequency lift for user regulates, and Qc is rear pump variable frequency flow for user regulates.
As can be seen from Figure 8, after heating system has installed the quantitative differential pressure control valve of self-powering type, the energy-saving effect of heating system pipe network is obvious, and after having installed self-powering type quantitative differential pressure control valve user active variable-flow, the energy-saving effect of heating system pipe network is more obvious.
Not only supported after the quantitative differential pressure control valve pressure differential resetting of self-powering type flow setting type run but also support user from main regulation, heating system water conservancy operating mode balance and energy-conserving action can be played after pressure differential resetting and flow set.Thus solve the imbalance of heating system water conservancy, eliminate adjustment between each control loop and outer net pressure surge to the impact of controlled loop, also weaken the adjustment interference effect of controlled loop inside simultaneously, reduce unnecessary flow waste, cut operating costs.
Therefore the pressure reduction that equilibrium valve arranges automatic pressure reduction control gear 5 and Manual quantitative device 7 controls that to add fixing quantity be a kind of comparatively ideal control mode, support the effective mode of execution of controlled loop variable-flow operation under the prerequisite solving the imbalance of heating system water conservancy operating mode, be applied in heat measuring system and there is excellent effect, there is great impetus to the heating system heat death theory that country actively promotes, user's initiatively variable-flow in heat death theory truly can be realized.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the quantitative differential pressure control valve of self-powering type, comprise the valve body (1) that inside is divided into upper and lower cavity, be arranged on the bonnet (2) on described valve body (1) top, be arranged on the bottom flange (3) of described valve body (1) bottom, be arranged on the PRESSURE PIPE (4) on described bonnet (2), be arranged on the automatic pressure reduction control gear (5) on described valve body (1), be arranged on the pressure differential resetting device (6) on described bonnet (2), it is characterized in that: described valve body (1) lower chamber inside is provided with Manual quantitative device (7), described Manual quantitative device (7) comprises and is arranged on upper and coaxial with described valve body (1) the quantitative valve rod (71) of described bottom flange (3), be arranged on second valve plug (72) of described quantitative valve rod (71) upper end, be arranged on the first valve plug (73) on described second valve plug (72), be arranged on the valve plug sealing gasket (74) between described first valve plug (73) and described second valve plug (72), be arranged on the quantitative sealed cover (75) between described quantitative valve rod (71) and described bottom flange (3).
2. the quantitative differential pressure control valve of a kind of self-powering type according to claim 1, it is characterized in that: described automatic pressure reduction control gear (5) comprises the pressure sensitive film (51) being arranged on and being connected between described valve body (1) with described bonnet (2) and with described pressure differential resetting device (6), be arranged on the upper film pad (52) on described pressure sensitive film (51), the automatic valve rod (53) of described upper film pad (52) and described pressure sensitive film (51) is passed in upper end, be successively set on the lower film pad (54) on described automatic valve rod (53), spring (55), automatic valve pocket (56), automatic valve plug (57), formation control cavity between described pressure sensitive film (51) and described bonnet (2), described automatic valve pocket (56) is pressed on described valve body (1) by described spring (11) and goes up and be slidably connected with described automatic valve plug (57).
3. the quantitative differential pressure control valve of a kind of self-powering type according to claim 2, is characterized in that: described pressure differential resetting device (6) comprises the pressure regulation valve rod (61) be arranged on described bonnet (2), the adjusting pressuring knob (62) be arranged on described pressure regulation valve rod (61), be arranged on pressure regulation stuffing box gland (63) between described pressure regulation valve rod (61) and described pressure sensitive film (51).
4. the quantitative differential pressure control valve of a kind of self-powering type according to claim 3, is characterized in that: be provided with O type circle between described pressure regulation valve rod (61) and described adjusting pressuring knob (62), between described quantitative valve rod (71) and described quantitative sealed cover (75), between described quantitative sealed cover (75) and described bottom flange (3).
5. the quantitative differential pressure control valve of a kind of self-powering type according to claim 1, it is characterized in that: described second valve plug (72) is provided with linear grooves (721), described valve body (1) is provided with the projection corresponding with described linear grooves (721).
6. the quantitative differential pressure control valve of a kind of self-powering type according to claim 3, is characterized in that: described pressure regulation valve rod (61) is provided with flow quantity locking apparatus (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669595.5U CN204267819U (en) | 2014-11-11 | 2014-11-11 | The quantitative differential pressure control valve of self-powering type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669595.5U CN204267819U (en) | 2014-11-11 | 2014-11-11 | The quantitative differential pressure control valve of self-powering type |
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| CN204267819U true CN204267819U (en) | 2015-04-15 |
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| CN201420669595.5U Active CN204267819U (en) | 2014-11-11 | 2014-11-11 | The quantitative differential pressure control valve of self-powering type |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442072A (en) * | 2018-12-08 | 2019-03-08 | 河北金桥平衡阀门有限公司 | A kind of Differential Pressure Controller |
| CN109682530A (en) * | 2018-12-24 | 2019-04-26 | 武汉中航传感技术有限责任公司 | A kind of Tiered differential pressure pickup |
| CN111561595A (en) * | 2020-05-19 | 2020-08-21 | 福建省海洋阀门科技有限公司 | Automatic regulating temp. control valve |
-
2014
- 2014-11-11 CN CN201420669595.5U patent/CN204267819U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442072A (en) * | 2018-12-08 | 2019-03-08 | 河北金桥平衡阀门有限公司 | A kind of Differential Pressure Controller |
| CN109682530A (en) * | 2018-12-24 | 2019-04-26 | 武汉中航传感技术有限责任公司 | A kind of Tiered differential pressure pickup |
| CN109682530B (en) * | 2018-12-24 | 2024-03-22 | 武汉中航传感技术有限责任公司 | Layered differential pressure sensor |
| CN111561595A (en) * | 2020-05-19 | 2020-08-21 | 福建省海洋阀门科技有限公司 | Automatic regulating temp. control valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230918 Address after: 062250 Chen Zhuang Zhen Da Chen Zhuang, Xian County, Cangzhou City, Hebei Province Patentee after: Juying Dust Remover Mfg & Installation Co.,Ltd. Hebei Address before: Dachenzhuang Town, Xian County, Cangzhou City, Hebei Province 062250 Patentee before: HEBEI GIANT BRITISH VALVE MANUFACTURING CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240608 Address after: Dachenzhuang Town, Xian County, Cangzhou City, Hebei Province 062250 Patentee after: HEBEI GIANT BRITISH VALVE MANUFACTURING CO.,LTD. Country or region after: China Address before: 062250 Chen Zhuang Zhen Da Chen Zhuang, Xian County, Cangzhou City, Hebei Province Patentee before: Juying Dust Remover Mfg & Installation Co.,Ltd. Hebei Country or region before: China |